Multiple friction joint pile system

Abstract

Disclosed is a multiple friction joint pile connection construction system to construct: shallow and deep foundations for structures, tie beam construction between footings, passive piles to prevent slope failures beam on elastic foundation, pile cap and tie beam in the construction of pile groups, load transfer platforms isolated (not connected) from the upper structure, retaining structure when constructed with vertical and horizontal orientation, vertical and horizontal drain when perforated blocks are used, landing pier, quay wall and platform construction for coastal and harbor structures, by anchoring to the upper section of the existing bored piles, by anchoring to the upper sections of the columns of the upper structure, in railroad tie manufacture, in transportation structures and in all kinds of similar geotechnical applications.

Claims

1. A multiple friction joint pile system comprising: at least two carrier elements; a twisted wire connecting said at least two carrier elements; at least one flexible plate positioned between said at least two carrier elements and adapted minimize a vibration of said at least two carrier elements; a twisted wire tightening or loosening apparatus connected to said twisted wire; a twisted wire fastening apparatus, wherein said at least two carrier elements have a twisted wire duct having a diameter three to five times larger than a diameter of said twisted wire, said twisted wire passing through the twisted wire duct, the twisted wire duct positioned at a point along said at least two carrier elements so as to allow independent lateral displacement and independent rotation of said at least two carrier elements relative to the twisted wire duct; a pile system having at least one geogrid squeezed between said at least two carrier elements and adapted to create piles, the at least one geogrid and the piles being connected to each other from an upper region or a lower region of a multiple friction joint pile that is adapted to be placed in excavated trench backfilled with sand, crushed stone or flowable fill, the excavated trench having a width approximately equal to a width of the pile, said twisted wire tightening or loosening apparatus being connected to the upper region, said twisted wire fastening apparatus being connected to the lower region.

2. The multiple friction joint system of claim 1, wherein said at least two carrier elements are formed of a material selected from the group consisting of a wood, a steel, a composite, a stone-filled cage, a concrete and a reinforced concrete.

3. The multiple friction joint system of claim 1, wherein said twisted wire formed of a material selected from the group of a steel rope, a fiber rope and a steel wire.

4. The multiple friction joint system of claim 1, wherein said at least one flexible plate is formed of a material selected from the group consisting of a rubber, a car tire, a geofoam, a plastic, and a geomembrane.

5. The multiple friction joint system of claim 1, wherein said twisted wire has a monolithic structure.

6. The multiple friction joint system of claim 1, wherein said twisted wire has at least two pieces.

7. The multiple friction joint system of claim 1, wherein said twisted wire tightening or loosening apparatus is adjustable so as to be loosened or tightened.

8. The multiple friction joint system of claim 1, wherein said twisted wire tightening or loosening apparatus is positioned at the upper region of the multiple friction joint pile, said twisted wire tightening or loosening apparatus adapted to loosen said twisted wire when said twisted wire is overloaded inside the multiple friction joint pile, said twisted wire tightening or loosening apparatus adapted to tighten said twisted wire to a desired tension.

Description

DRAWINGS

(1) Embodiments of the present invention briefly summarized above and discussed in more detail below can be understood by reference to the exemplary embodiments described in the accompanying drawings. It should be noted, however, that the accompanying drawings only illustrate the typical structures of the present invention and therefore, they will are not intended to limit the scope of the invention, since it may allow other equally effective structures.

(2) FIG. 1—Monolithic pile included in the prior art

(3) FIG. 2—Monolithic pile under the lateral force F included in the prior art

(4) FIG. 3—F forces that can affect the block and the top view of the block

(5) FIG. 4—Left side and top view of the block

(6) FIG. 5—Representative view of block junction detail

(7) FIG. 6—Representative cross-sectional view of the block junction detail

(8) FIG. 7—Section A view

(9) FIG. 8—Section B view

(10) FIG. 9—Perspective view of representative deformation under lateral force

(11) FIG. 10—Representation of movement of blocks under lateral force

(12) FIG. 11—Representation of combined movement of blocks under lateral force

(13) FIG. 12—Behavior of concrete block under the effect of torsional moment

(14) FIG. 13—Top and side view of geogrid over the block.

(15) FIG. 14—Connection of neighboring piles with geogrid squeezed between the blocks.

(16) Identical reference numbers are used where possible to identify identical elements common in the figures to facilitate understanding. The figures are not drawn with a scale and can be simplified for clarity. It is contemplated that the elements and features of an embodiment may be usefully incorporated into other embodiments without further explanation.

DESCRIPTION OF THE DETAILS IN THE DRAWINGS

(17) 10—Monolithic pile

(18) 11—Fracture or crack

(19) 20—Soil, filling, etc.

(20) 100—Bearing element

(21) 101—Twisted wire duct

(22) 102—Drainage channel

(23) 103—Geogrid

(24) 110—Flexible plate

(25) 120—Twisted wire

(26) 130—Twisted wire tightening and loosening apparatus

(27) 140—Twisted wire fastening apparatus

(28) F—Acting force

(29) F.sub.b—Torsional Moment

(30) X.sub.0—Pile first position

(31) X.sub.1—Pile second position

(32) A—Twisted wire tightening and loosening apparatus section detail

(33) B—Twisted wire fastening apparatus section detail

DETAILED DESCRIPTION OF THE INVENTION

(34) In this detailed description, preferred alternatives of multiple friction articulated pile embodiment of the invention are described only for a better understanding of the subject and without any limiting effect.

(35) The invention comprises a bearing element (100) comprising at least two parts and preferably at least one twisted wire duct (101) positioned at any point on the bearing element (100), wherein the twisted wire duct (101) is long enough to connect the bearing elements (100) passing through the duct in the amount to meet the need. The diameter of the twisted wire duct (101) must be at least three to five times the diameter of the twisted wire. This gap allows movement in the lateral direction. In order to prevent contact between the twisted wire and the bearing element, the twisted wire is passed through a hose and this structure is passed through the twisted wire duct. The bearing element can be solid or perforated. It is not necessary for this element to be concrete; different materials such as wood, steel, composite, stone-filled cage, etc. can also be used. The important feature is the presence of a hole where the anchor will pass through the block and if the material forming the block consists of grains, it must be permanently bundled.

(36) The invention comprises a geomembrane (rubber, cut waste car tire, geofoam, etc.) of the thickness required by the project placed between two bearing elements (100). However, it is not necessary to have a geomembrane for horizontal displacement. The soft material will be useful in preventing vibrations in the vertical and horizontal directions.

(37) The invention is held together by a sufficient amount of bearing elements (100) and twisted wire (120) which is passed through the twisted wire duct (101) located on the flexible plates (110) placed between said bearing elements (100). The twisted wire (120) can be adjusted by loosening and tightening from its top and it is connected by a twisted wire tightening and loosening apparatus system. This tightening and loosening apparatus can be dywidag, anchor 4-cone or gripper. The lower part of the twisted wire (120) includes the twisted wire fastening system (140). Here, terminal or gijon systems, etc. with headless setscrew can also be used.

(38) Among the figures used to make the invention more understandable, FIG. 1 and FIG. 2 illustrate the pile system used in the prior art and the disadvantage thereof.

(39) FIG. 2 shows the movement of the monolithic pile under the lateral force F from the point X0 to the X1, and the fracture or crack 11 creation status of the monolithic pile under the force F. These pile systems built on the foundations of structures such as buildings, bridges, etc. break when the ground is exposed to earthquakes or other natural factors. The product and system of the invention developed to prevent this are explained in more detail below with the figures.

(40) FIG. 5 illustrates a representative connection of the rigidity-adjustable pile system with large displacement, wherein the system is connected together with the bearing element 100 and the flexible plates 110 positioned between said bearing element 100 and the twisted wire 120 used to keep the system together by passing through the bearing elements 100 and the flexible plates 110 and twisted wire tightening and loosening apparatus 130, which is connected to said twisted wire 120 preferably on the upper section, and the twisted wire fastening apparatus 140, which is connected preferably from the bottom.

(41) FIG. 6 is a cross-sectional view of the representative connection of FIG. 5.

(42) FIGS. 7 and 8 show sections A and B, respectively. Section A shows the tightening and loosening section and section B shows the fastening section. However, the connections shown in these two figures are representative and are included to make the invention more understandable, and have no limiting effect.

(43) FIG. 9 shows a representative operating mode of the multiple friction pile system.

(44) FIG. 10 illustrates how the multiple friction pile system operates in the event of axial shift, and the individual effect of the lateral force F in which the bearing blocks 100 are affected from any direction on the bearing blocks 100 is shown. Here, the bearing elements 100 shifting due to the force F are movable since they are designed as independent units. When the twisted wire 120 is overloaded inside the multiple friction articulated pile system, it can be loosened with the help of the twisted wire tightening and loosening apparatus 130 located on the upper part and the load on the twisted wire 120 can be reduced. Similarly, in cases where it is desired to tighten the twisted wire 120, the desired tension is obtained by tightening the tightening and loosening apparatus 130. The possibility of fracture and/or cracking of the column is eliminated by the multiple friction articulated pile system placed under the structure this way.

(45) The pile system formed also withstands the torsional forces with the frictional force in the joint planes. Exceeding this strength will not cause the pile to twist, but this block will only rotate. This feature will minimize the torsional problems especially in pile groups.

(46) In the present invention, it is also possible to use the pile for drainage in the horizontal and vertical directions by the holes formed in the horizontal and vertical directions of the bearing elements 100. These holes are separate from the twisted wire hole. These holes on the bearing elements 100 provide the discharge of water in the pile well. When necessary, cement slurry, lime slurry, chemical, bentonite, etc. mixtures can also be fed to the ground with the help of these ducts. This has created a new combined soil improvement method.

(47) Additionally, piles can be created by using one or more geogrids 103 instead of geomembranes in the articulations and the geogrids 103 can be connected to each other from the upper region and the lower region of the articulated pile. The frames thus formed can be used in geotechnical applications such as forming deep foundations, retaining structures, approach embankments, platforms, etc. Geogrids 103 are anchored in the upper section of the pile by squeezing between the concrete blocks and provide additional bending rigidity during lateral loading after being placed on the pile surface along the pile, and then being anchored between the concrete blocks at the other end of the pile. When the same operation is performed on the other axis, an articulated pile is formed in which the bending strength is increased in both directions.

ABBREVIATIONS

(48) D: Pile diameter