NATURAL STONE SWIMMING POOL

Abstract

The present invention relates to a pool for receiving one or more people for carrying out sports or relaxation activities, also referred to as a swimming pool, comprising at least one baseplate and a boundary wall, wherein the baseplate and the boundary wall enclose an internal volume, and the baseplate and the boundary wall are each constructed from one or more monolithic natural stones, and said monolithic natural stones are interconnected to one another, within the baseplate, the boundary wall and at the connecting surfaces between baseplate and boundary wall, in an integrally bonded and watertight manner. The invention furthermore relates to the use of such a pool as a swimming pool, and to a method for producing such a pool.

Claims

1-15. (canceled)

16. A pool for receiving one or more persons for the performance of sporting or recreational activities, comprising: at least one bottom plate; a boundary wall, wherein the bottom plate and the boundary enclose an internal volume which is Tillable with water during operation of the pool; and a treatment unit for treatment of the water contained in the inner volume, the treatment unit comprising an inlet connected to the inner volume, an outlet connected to the inner volume, and a treatment means arranged in the direction of flow of the water between the inlet and the outlet; wherein the bottom plate and the boundary wall are each constructed of one or more monolithic natural stones, and said monolithic natural stones are joined to one another within the bottom plate, the boundary wall and at the connecting surfaces between the base plate and the boundary wall in a materially bonded and watertight manner, by means of an adhesive bond; the bottom plate together with the boundary wall are adapted to absorb the pressure generated by the water present in the inner volume during operation of the pool without the need for a supporting substructure provided in addition to the boundary wall; and the inner volume has a depth of at least 0.5 m and the inner volume exhibits a free inner length of at least 2m and a free inner width of at least 2 m, wherein the free inner length (is arranged at right angles to the free inner width.

17. The pool according to claim 16, wherein the boundary wall is rectangular in a top view of the pool and is constructed from two long side walls and two broadside walls, wherein the longitudinal side walls and the broadside walls are arranged at right angles to each other and to the bottom plate.

18. The pool according to claim 16, wherein in a top view of pool, the boundary wall exhibits a round, oval or polygonal shape or a mixture of these shapes; and the treatment unit is arranged outside the boundary wall and the bottom plate and wherein the inlet and the outlet are connected in a watertight manner at recesses in the boundary wall.

19. The pool according to claim 16, wherein the materially bonded joints between the individual monolithic natural stones of base plate and boundary wall have substantially the same strength, as the natural stone itself.

20. The pool according to any claim 16, wherein the boundary wall has a wall thickness corresponding to the square root of the product of a design constant with the depth cubed, with the design constant being dependent on the maximum material stress strength of the natural stone.

21. The pool according to claim 16, wherein a collecting collar is arranged circumferentially on the outer side of the boundary wall facing away from the inner volume, which collecting collar is provided for collecting water escaping from the inner volume beyond the boundary wall during operation, wherein the inlet of the treatment unit is fluidically connected to the collecting collar, and further wherein the collecting collar is constructed of monolithic natural stones and the connection of the monolithic natural stones of the collecting collar to each other as well as the connection of the collecting collar with the boundary wall is implemented exclusively by material bonding, further wherein the collecting collar comprises substantially horizontally arranged bottom parts and substantially vertically arranged wall parts, wherein the bottom parts and the wall parts together with the boundary wall form a drainage channel, and wherein the inlet is fluidically connected to a recess in a bottom part.

22. The pool according to claim 16, wherein the pool has at least one separation area which separates the bottom plate and the boundary wall into at least two pool parts, with the at least two pool parts being connected to one another at the separation area by clamping devices, wherein the pool parts themselves are constructed from monolithic natural stones connected to one another exclusively by material bonding, and a sealing means is inserted at the separation area, which is deformed by the clamping devices and seals the at least two pool parts towards each other, wherein the separation area also separates the collecting collar.

23. The pool according to claim 16, wherein the monolithic natural stones of the bottom plate and of the boundary wall are made of granite, wherein all the monolithic natural stones used in the pool are made of the same type of granite or being made of different types of granite, and the surfaces of the monolithic natural stones formed from granite are surface treated.

24. The pool according to claim 16, wherein a pool foundation is provided, which is arranged below the base plate and comprises a plurality of bearing pedestals, with the bearing pedestals being arranged at a distance from one another, and with the base plate resting zonally on the bearing pedestals, and the pool foundation further comprises a concrete slab on which the bearing pedestals are positioned in spaced apart relationship.

25. The pool according to claim 16, wherein a surrounding element is provided, which at least partially surrounds the boundary wall, and wherein the surrounding element is in contact with the boundary wall by means of at least one spacer construction, wherein the spacer construction is in contact with the boundary wall via a circular contact element, which is adapted to transmit forces between the boundary wall and the surrounding element, further wherein the contact element can abut in the upper half of the boundary wall, further in the upper third of the boundary wall.

26. The pool according to claim 16, wherein the monolithic natural stones forming the bottom plate and the boundary wall, together with the material bonding between the monolithic natural stones, absorb at least part of the forces arising from the bending tensile stresses generated in the bottom plate and the boundary wall due to the pressure generated by the water present in the inner volume during the operation of the pool.

27. The pool according to claim 25, wherein the pool base and the surrounding element in combination with at least one spacer structure absorb a part of the forces generated by the bending tensile stresses generated in the bottom plate and the boundary wall by the pressure generated due to the water present in the inner volume during the operation of the pool wherein the bottom plate and the boundary wall absorb another part of these forces.

28. A method for manufacturing a pool according to claim 16, comprising the steps of preparing a bottom plate, wherein the bottom plate is composed of a plurality of monolithic natural stones, and wherein the connection between the monolithic natural stones of the bottom plate is made exclusively by material bonding; providing recesses into a boundary wall and/or the bottom plate, wherein the recesses are provided for connecting a treatment unit; arranging the boundary wall at the edge of the base plate wherein the boundary wall extends vertically upwards starting from the base plate and wherein the boundary wall is closed in itself and, together with the bottom plate, water tightly encloses an inner volume which can be filled with water during operation of the pool, wherein the boundary wall is composed of a plurality of monolithic natural stones, and wherein the connection between the monolithic natural stones of the boundary wall and the bottom plate is implemented exclusively by material bonding; and connection of the treatment unit, which comprises an inlet connected to the inner volume, an outlet connected to the inner volume, and a treatment means arranged in the direction of flow of the water between the inlet and the outlet, wherein the inlet and the outlet are connected at the recesses in a watertight manner.

Description

DESCRIPTION OF THE FIGURES

[0044] In the Figures:

[0045] FIG. 1 shows a perspective view of a preferred embodiment of a pool according to the invention;

[0046] FIG. 2 shows a second preferred embodiment of a pool according to the invention in a top view;

[0047] FIG. 3 shows a perspective view of a third preferred embodiment of a pool according to the invention;

[0048] FIG. 4 shows a perspective view of a fourth embodiment of a pool according to the invention,

[0049] FIG. 5 shows a perspective view of a detail before connection of two pool parts of the pool according to the invention from FIG. 4,

[0050] FIG. 6 shows a sectioned side view of a fifth embodiment of a pool according to the invention, and

[0051] FIG. 7 shows a sectioned detailed view of the fifth embodiment of a pool according to the invention according to FIG. 6.

PREFERRED EMBODIMENTS OF THE INVENTION

[0052] In the following description of the preferred embodiments of the present invention, the figures illustrate the subject matter of the invention merely schematically. The preferred embodiments of the invention are illustrated in the drawings and will be described in more detail below.

[0053] FIG. 1 shows a perspective view of a preferred embodiment of a pool 1 according to the invention. The first embodiment illustrated has a rectangular basic shape. The base of the pool 1 forms the baseplate 2. Said baseplate 2 is formed here from a single monolithic natural stone. The term “monolithic” should be understood here as meaning that the baseplate 2 consists of a single part and is not constructed per se from a plurality of individual parts. Such monolithic natural stones are conventionally extracted from a quarry in larger volume than their final form and subsequently machined to the desired dimensions. A boundary wall 3 is constructed along the baseplate 2. The boundary wall 3 encircles and delimits an internal volume 4 of the pool 1, which is bounded on its lower side by the baseplate 2. During operation of the pool 1, the internal volume 4 can be filled with water up to the upper edge of the boundary wall 3. The boundary wall 3 here comprises two sidewalls 31 running from the front to the rear, i.e. along the swimming pool 1, also called longitudinal sidewalls 31, and two sidewalls 32 running from right to left, i.e. across the width of the pool 1, also called wide sidewalls 32.

[0054] The individual parts of the boundary wall 3 are interconnected in an integrally bonded manner. In the embodiment illustrated, the connection of the individual parts is produced exclusively by adhesive bonding. The connection of the boundary wall 3 to the baseplate 2 is also produced exclusively by adhesive bonding. No further connecting elements, such as, for example, screws or clamps, are installed. Except for the adhesive bonding points, the boundary wall 3 is also composed exclusively of natural stone. The entire pool shell of the pool 1 formed from baseplate 2 and boundary wall 3 is thus composed exclusively of natural stone and adhesive bonding points. The adhesive used and the natural stone are chemically resistant over the very long term to water, even to chlorinated water. Metallic connecting elements are not used, and therefore the entire pool shell is highly resistant to corrosion over the long term. In the embodiment illustrated, the front wide sidewall 32 and the two longitudinal sidewalls 31 are each formed from a single monolithic natural stone. By contrast, the rear wide sidewall 32 is assembled from a plurality of monolithic natural stones. These individual parts of the rear wide sidewall 32, like the other parts of the pool shell of the pool 1, are exclusively adhesively bonded to one another, i.e. no additional connecting elements are used here either. A construction such as of the rear wide sidewall 32 from a plurality of natural stones is selected in particular in the event of the pool 1 being of larger dimensions since the maximum size of an individual natural stone is limited, for example, by the requirement of transport from the quarry to the stone-machining workshop or to the swimming pool production site. According to the invention, the individual parts of the pool 1 are interconnected via an adhesive bonded joint which has the same mechanical strength as the natural stone itself. In specific applications, it is, of course, possible to arrange form-fitting or force-fitting connecting elements in addition to the adhesive bonded joint between the individual monolithic natural stones of the pool. In some applications, for example when a pool is erected on a multistory building, there may be more stringent safety regulations for the construction of the pool. In such a case, of course, the previously described additional connecting elements, such as, for example, compound anchors, may be introduced for the additional prescribed protection of the connection of the individual parts of boundary wall 3 and baseplate 2.

[0055] In the case of the pool 1 according to the invention, there is no load-bearing substructure composed of different materials from natural stone. The elements constructed in solid form from natural stone in the form of the baseplate 2 and boundary wall 3 by themselves provide the strength required for absorbing the water pressure. A pool 1 according to the invention is therefore constructed in a self-supporting manner purely from natural stone. Of course, a pool according to the invention can also be provided on a substructure, for example a concrete slab. However, such a substructure is not required for achieving permanent static strength. Natural stone, in particular granite, is stable over the very long term, and is significantly more stable over the long term than conventional substructures made from concrete. The solid design from natural stone also makes it possible for water not to be able to penetrate between individual layers, for example between substructure and visible surface. A pool according to the invention because of the high-quality material is thus significantly more durable than known swimming pools or pools. In comparison to pools according to the prior art, in which first of all a substructure is produced and then the natural stone surface is applied to said substructure, the pool 1 according to the invention can be produced in a significantly reduced number of working steps. Furthermore, the pool 1 according to the invention has a natural stone surface everywhere, i.e. for example even on its outer side. The pool 1 according to the invention is thus composed virtually exclusively of very high-quality materials, i.e. produces a very high-quality impression for a user, and provides a surface with optimal grip everywhere. The design described in the present invention makes it possible to configure the boundary wall 3 of the pool 1 to be slender throughout, and therefore significantly more slender than in the case of a multi-layered construction of a known swimming pool/pool with a substructure made from concrete and a visible surface of natural stone applied subsequently.

[0056] The internal volume 4 in the embodiment illustrated of the pool 1 according to the invention is cuboidal. The internal volume 4 has a depth 41 which is greater than 0.5. A further favorable depth 41 is a depth which is greater than 1 m. A free length 42 of the internal volume 4 is greater than 2 m and a free width 43 of the internal volume 4 is greater than 2 m. By means of these preferred dimensions, the water located in the internal volume 4 can be used for swimming or for other sports or relaxation activities by a user. A treatment plant 5 can be seen in FIG. 1 on the right-hand side next to the right longitudinal sidewall 31. The treatment plant 5 comprises an inlet 51 via which water located in the internal volume 4 is supplied through a cutout at the rear in the longitudinal sidewall 31 to a treatment element 53. The treatment element 53 typically comprises a pump for transporting the water and a filter which filters suspended matter and dirt out of the transported water. After the treatment element 53, the treated water passes back again via an outlet 52 into the internal volume 4, in the case illustrated via a cutout in the lower half at the front on the right longitudinal sidewall 31. In addition to the treatment element 53, the treatment plant 5 can comprise further components, such as, for example, a disinfection plant and/or flocculation plant.

[0057] FIG. 2 shows a top view of a further, second preferred embodiment of a pool 1′. In contrast to the first preferred embodiment shown in FIG. 1, the boundary wall 3′ of the second embodiment shown in FIG. 2 does not have a rectangular shape in top view. Only that region of the boundary wall 3′ which is oriented downward in FIG. 2 is constructed from flat walls in the form of the lower wide sidewall 32′ and the longitudinal sidewalls 31′. In the top view illustrated in FIG. 2, the upper wide sidewall 32′ has the shape of half a circular ring or approximately the shape of an upside down “U”. The free length 42′ of the internal volume 4′ here is the greatest length dimension of the internal volume 4′ which extends between the lower flat wide sidewall 32′ and the point which is furthest away therefrom and, in the view shown in FIG. 2, is entirely at the top of the circular ring of the upper wide sidewall 32′, the apex point of the curve of the upper wide sidewall 32′. The pool 1′ according to the invention can have a very wide variety of shapes in top view. The shape illustrated in FIG. 2 is a mixed shape consisting of rectilinear and curved walls. Of course, boundary walls can also be configured with other shapes in top view, for example a shape purely in the form of a circular ring or a polygonal shape. The free length and free width here are always defined as the maximum dimensions of an internal volume of the pool shell in the respective direction. In the embodiment of the pool 1′ which is illustrated in FIG. 2, the baseplate 2′ is assembled from a total of three monolithic natural stones, wherein the connecting points formed by an adhesive bond run horizontally in FIG. 2. FIG. 2 shows merely a simplified illustration of the pool 1′, in which a treatment plant is not illustrated for reasons of clarity.

[0058] FIG. 3 shows a perspective view of a third preferred embodiment of a pool 1″. The embodiment illustrated here, like the embodiment of the pool 1 in FIG. 1, comprises a pool shell which is formed from a baseplate 2″ and a boundary wall 3″. The baseplate 2″ and the boundary wall 3″ also surround an internal volume 4″ here. As already described with reference to the embodiment illustrated in FIG. 1, baseplate 2″ and boundary wall 3″ are assembled in solid form from monolithic natural stones which are interconnected exclusively in an integrally bonded manner. The preferred embodiment illustrated in FIG. 3 also comprises a treatment plant which, however, is not illustrated here for reasons of clarity, and which continuously pumps the water in the internal volume 4 through the treatment element where the water is cleaned. After cleaning, the water is supplied again to the internal volume 4″. In the embodiment illustrated in FIG. 3, water runs down over the upper edges of the boundary wall 3″ and is collected by the collecting collar 6″ arranged in an encircling manner on the outer side of the boundary wall 3″, thus giving the impression of an “infinity pool”. For users who are in the pool 1″, the impression is accordingly produced that they are in a free water area since the pool 1″ does not have any components which protrude beyond the water surface. From the collecting collar 6″, the water then passes through a cutout 65″ to the inlet (not illustrated) of the treatment plant. At the same time, the collecting collar 6″ serves to receive water which is displaced, for example, by people jumping into the pool 1″. The collecting collar 6″ is preferably likewise constructed from monolithic natural stones. The collecting collar 6″ here comprises a plurality of base parts 61″ which are designed here as slabs oriented substantially horizontally. At its outer edge, the collecting collar 6″ is surrounded by a plurality of vertically oriented wall parts 62″. The wall parts 62″, the base parts 61″ and the regions of the outer side of the boundary wall 3″ that are arranged adjacent to the base parts 61″ together form a drainage channel 63″ in which water which has escaped from the internal volume 4″ is collected and supplied to the cutout 65″. The inlet of the treatment plant is subsequently fluidically attached to said cutout 65″. The individual parts of the collecting collar 6″ are constructed solidly from monolithic natural stones and adhesively bonded to one another and to the boundary wall 3″ without additional fastening elements being used. A particularly suitable natural stone material for the embodiments shown and described herein is granite since granite has high strength and its surface, in particular its roughness, can be particularly readily adjusted to the requirements.

[0059] FIG. 4 shows a perspective view of a fourth preferred embodiment of a pool 1′″. The embodiment shown in FIG. 4 has a significantly longer free length 42′″ than the preferred embodiments shown in FIGS. 1 and 4. This free length 42′″ is provided here with a size greater than 10 m. Such long pools 1′″ cannot be transported completely in one piece to the set-up site, as a result of which it is necessary to divide the pool 1′″, in particular the pool shell, which is formed from baseplate 2′″ and boundary wall 3′″, and to transport the pool parts individually to the set-up site. The parts are interconnected only at the set-up site. In the preferred embodiment illustrated of the pool 1′″, there is a separating point 8′″ which divides the pool shell into two pool parts. In the case of pools having even greater dimensions, there can also be a plurality of separating points 8′″ which divide the pool shell into a plurality of parts. Furthermore, it is possible, in addition to the separating point 8′″ which is shown in FIG. 4 and is arranged along the free length 42′″, also to arrange one or more separating points 8′″ along the free width 43′″. At the separating point 8′″, the two pool parts are interconnected in a fixed and watertight manner. FIG. 4 again illustrates the pool 1′″ with a simplified design, i.e. the treatment plant is not shown for reasons of clarity. One or more separating points can also be provided in the case of the embodiment according to FIG. 3. In this case, the optional separating point also passes through the collecting collar 6″. In general, of course, pool shells having a different geometry of the internal volume, i.e., for example, as illustrated in FIG. 2, can be divided into a plurality of pool parts and interconnected at separating points.

[0060] Details regarding the arrangement of the separating point 8′″ and the two pool parts are illustrated in FIG. 5. FIG. 5 here shows a perspective view of a detail before the connection of two pool parts of the pool 1′″ from FIG. 4. FIG. 5 shows in particular the state before the connection of the two pool parts via a separating point 8′″. Only one part of the pool 1′″ in the region of the right longitudinal sidewall 31′″ shown in FIG. 4 is illustrated. In FIG. 5, two parts of the boundary wall 3′″ are correspondingly illustrated still separately from each other. The separating point 8′″ is located between these two parts of the boundary wall 3′″. A clamping device 81′″ can be seen on that side of the boundary wall 3′″ which faces away from the internal volume 4′″. Said clamping device 81′″ has two angular elements 811′″ of which one is fastened to each of the parts of the boundary wall 3′″. The angular elements 811′″ can be connected in an integrally bonded manner and/or via additional connecting elements. In the case illustrated, one or more fastening openings 812′″, through which the angular element 811′″ can be additionally connected to the boundary wall 3′″, for example via screw connections, are arranged in each angular element 811′″. The angular element 811′″ is correspondingly connected to the boundary wall 3′″ via one of its two limbs. At a right angle to said boundary wall limb, a further limb is arranged which serves to connect the two angular element 811′″ to each other. Said further limb protrudes in a manner pointing away from the boundary wall 3′″ and provides a bore 813′″. In order to interconnect the pool parts, a tensioning means, not illustrated here, is guided through the respective bores 813′″ of the angular elements 811′″ and serves to connect the two angular elements 811′″ to one another under tension, as a result of which the two pool parts are fixedly interconnected at the separating point 8′″. Such a tensioning means can be, for example, a threaded bolt which is tensioned on one side by a nut. In order to seal the two pool parts with respect to each other a sealing means 82′″ is inserted at the separating point 8′″. In the case illustrated, the sealing means 82′″ is a sealing cord or the like. In order to receive the sealing cord 82′″, a groove 83′″ has been introduced on the rear part of the boundary wall 3′″, on the end side thereof facing the separating point 8′″. Said groove 83′″ receives at least part of the sealing cord 82′″ and thus facilitates the fastening thereof. At the rear part of the boundary wall 3′″, during the tensioning of the two pool parts by the tensioning device 81′″, the sealing means 82′″ is deformed and thus seals the separating point 8′″ in a watertight manner. Of course, the sealing can also take place via different sealing means than a sealing cord, for example via a sealing coating or an adhesive bonded joint, as is also used for connecting the monolithic natural stones to one another. In order to connect the two pool parts, a plurality of tensioning devices 81′″ which are arranged along the separating point 8″ are conventionally provided. For this purpose, tensioning devices 81′″ can also be arranged at the bottom of the pool shell, in a manner fastened to the baseplate 2′″.

[0061] FIG. 6 shows a sectioned side view of a fifth embodiment of a pool 1″″ according to the invention. The embodiment shown in FIG. 6 is similar to the embodiment shown in FIG. 1. A cuboidal pool 1″″ with a baseplate 2″″ and a boundary wall 3″″ is illustrated. The baseplate 2″″ and the boundary wall 3″″ together form the pool shell which surrounds an internal volume 4″″ which can be filled with water up to the upper boundary of the boundary wall 3″″. The entire pool shell is also constructed here from monolithic natural stones which are interconnected in an integrally bonded manner. The pool 1″″ again comprises a treatment plant 5 which, however, is not illustrated in FIG. 6 for reasons of clarity. The pool 1″″ has longitudinal sidewalls 31″″ of which only the rear longitudinal sidewall 31″″ can be seen in the sectioned illustration. The two longitudinal sidewalls 31″″ are connected at the ends thereof to two wide sidewalls 32″″. The two wide sidewalls 32″″ are illustrated in sectioned form in FIG. 6. The pool 1″″ rests here on a pool base 9″″ which comprises a concrete slab 91″″ and a plurality of bearing pedestals 92″″. The fifth embodiment of the pool 1″″ according to the invention that is illustrated in FIG. 6 can be used both in a freestanding manner and embedded in the ground or in the soil as a swimming pool. The pool base 9″″ serves primarily for horizontally aligning the pool 1″″. The concrete slab 91″″ here forms the lowermost layer of the pool base 9″″. The concrete slab 91″″ can be produced, for example, on a rolled underlying surface by a casting method or the like. In the embodiment illustrated in FIG. 6, the baseplate 2″″ of the pool does not rest directly on the concrete slab 91″″, but rather is mounted on a plurality of bearing pedestals 92″″ which are applied to the concrete slab 91″″. The bearing pedestals 92″″ are formed here by cylindrical regions which can be formed, for example, from construction mortar.

[0062] The bearing pedestals 92″″ can also be designed with a longer extent in the vertical direction and can be formed, for example, by foundation pillars which are applied to the concrete slab 91″″. The baseplate 2″″ of the pool 1″″ rests on a plurality of bearing pedestals 92″″, as a result of which the weight force which is produced by the pool 1″″ and the water located in the internal volume 4″″ can be dissipated into the underlying surface. The pool base 9″″, in particular the bearing pedestals 92″″, are therefore loaded by compressive stress resulting from the weight force of the pool 1″″. The bending stresses, which are produced by the water in the internal volume 4″″, in the pool shell, in particular in the baseplate 2″″, are completely or at least largely compensated for by the pool shell itself. Bending stresses in the baseplate 2″″ occur in particular in the regions which do not rest directly on the bearing pedestals 92″″. Of course, bending stresses also occur in the natural stone at the locations of the supporting points on the bearing pedestals 92″″ since the bending stress profile produced by the water follows the pattern of a continuous support, i.e. flexural stresses occur between the supporting points on the bearing pedestals 92″″ on a lower side and in the region of the supporting points on the bearing pedestals 92″″ on an upper side. A distance between two adjacent bearing pedestals 92″″ here determines the magnitude of the bending stresses occurring in the baseplate 2″″. The following is true here: the greater the distance between two adjacent bearing pedestals 92″″, the greater are the bending stresses occurring in the baseplate 2″″. In practice, the distance between two adjacent bearing pedestals 92″″ is selected in such a manner that the bending stresses occurring between the bearing pedestals 92″″ are lower than the flexural strength of the baseplate 2″″ which is constructed from monolithic natural stones. In an alternative embodiment thereto (not illustrated), the pool base 9″″ can also be designed without a concrete slab 91″″. For example, individual foundation pillars can be introduced here into the underlying soil, said foundation pillars accordingly forming the bearing pedestals 92″″.

[0063] In the fifth embodiment of the pool 1″″ that is illustrated and described here, a surrounding element 93″″ is arranged in an encircling manner around the upper region of the boundary wall 3″″. Said surrounding element 93″″ serves, for example as an underlying surface for a region which can be walked on and which encircles the pool 1″″. Natural stones or tiles, inter alia, can be applied to said region which can be walked on. The surrounding element 93″″ therefore does not belong to the pool shell but rather serves for connecting the pool shell to its surroundings. Furthermore, the surrounding element 93″″ is arranged here spaced apart from the boundary wall 3″″. The distance between surrounding element 93″″ and boundary wall 3″″ is ensured by a spacer structure 931″″. The region illustrated in FIG. 6 by reference sign VII is illustrated in detail in FIG. 7 described below.

[0064] FIG. 7 shows a sectioned detail view of the fifth embodiment of the pool 1″″ according to the invention according to FIG. 6. FIG. 7 shows the detail, which is denoted by VII in FIG. 6, in detail. The upwardly facing edge of the boundary wall 3″″, on which a surrounding element 93″″ is arranged, can be seen here. The surrounding element 93″″ encircles the boundary wall 3″″. A gap S″″ is located between the surrounding element 93″″ and the wide sidewall 32″″. The surrounding element 93″″ is therefore provided spaced apart from the pool shell. The surrounding element 93″″ is connected to the wide sidewall 32″″ by a spacer structure 931″″. FIG. 7 shows such a spacer structure 931″″. Since the surrounding element 93″″ encircles the pool shell, a plurality of such spacer structures 931″″ are arranged over the circumference of the pool shell and the surrounding element 93″″ and serve to permanently realize the gap S″″. In the embodiment illustrated, the spacer structure 931″″ is fixedly connected to the surrounding element 93″″ via two connecting elements 9311″″. The connecting elements 9311″″ can be formed, for example, by screws which are screwed with or without dowels into the surrounding element 93″″. The connecting elements 9311″″ are simultaneously fixedly connected to the support 9312″″ of the spacer structure 931″″. An adjustment element 9313″″ is likewise connected to the support 9312″″, said adjustment element being fastened here to the edge of the support 9312″″ that points to the right. The adjustment element 9313″″ comprises a threaded bolt which points to the left in the illustration and is screwed into the support 9312″″. By means of said screw connection, the length of the adjustment element 9313, which length protrudes over the support 9312″″, is adjustable. The adjustment element 9313″″ furthermore has a contact element which points to the right and lies against the wide sidewall 32″″′. The width of the gap 5″″ can be adjusted by the adjustment element 9313″″. Compressive forces can be transmitted between the surrounding element 93″″ and the wide sidewall 32″″ via the spacer structure 931″″. Force flows via the adjustment element 9313″″ which lies with its contact element against the pool shell. Said contact element can be fastened to the pool shell, for example by means of a screw connection or adhesive bonded joint, or else can be in contact therewith via a frictional connection. In this embodiment, the surrounding element 93″″ is connected to the pool shell via a plurality of spacer structures 931″″. Compressive forces can thus be dissipated from the pool shell to the surrounding element 93″″ and vice versa at a plurality of points distributed around the circumference of the pool shell. The spacer structures 931″″ used for the transmission of force are therefore arranged spaced apart from one another on the pool shell and are each in contact by their contact element with the pool shell. Between the individual spacer structures 931″″ there are therefore regions of the boundary wall at which force is not transmitted between surrounding element 93″″ and pool shell. In these regions, the pool shell is stressed solely by the bending stresses which are produced by the water located in the internal volume 4″″. The spaced-apart arrangement of a surrounding element 93″″ around the pool shell thus does not constitute a supporting device or substructure which absorbs the bending stresses in the pool shell resulting from the water pressure in the interior of the pool. Even in the case of the arrangement of a surrounding element 93″″ with the aid of a plurality of spacer structures 931″″, as illustrated and described here, the pool shell is formed in a self-supporting manner.

[0065] Preferred embodiments of the present invention have been described above, but the present invention is not limited to the previously described preferred embodiments. Diverse modifications in the configuration can be undertaken without departing from the invention as specified within the scope of the subsequent claims.

LIST OF REFERENCE SIGNS

[0066] 1; 1′; 1″; 1′″; 1″″ Pool [0067] 2; 2′; 2″; 2″; 2″″ Baseplate [0068] 3; 3′; 3″; 3″; 3″″ Boundary wall [0069] 31; 31′; 31″; 31″″ Longitudinal sidewall [0070] 32; 32′; 32″″ Wide sidewall [0071] 4; 4″; 4′″; 4″″ Internal volume [0072] 41 Depth [0073] 42; 42′; 42″ Free internal length [0074] 43; 43′″ Free internal width [0075] 5 Treatment plant [0076] 51 Inlet [0077] 52 Outlet [0078] 53 Treatment element [0079] 6″ Collecting collar [0080] 61″ Base part [0081] 62″ Wall part [0082] 63″ Drainage channel [0083] 8′″ Separating point [0084] 81′″ Clamping device [0085] 811′″ Angular element [0086] 812′″ Fastening opening [0087] 813′″ Bore [0088] 82′″ Sealing means [0089] 83′″ Groove [0090] 9″″ Pool base [0091] 91″″ Concrete slab [0092] 92″″ Bearing pedestal [0093] 93″″ Surrounding element [0094] 931″″ Spacer structure [0095] 9311″″ Connecting element [0096] 9312″″ Support [0097] 9313″″ Adjustment element [0098] S″″ Gap