High strength jet anchor

Abstract

The invention relates to a jet anchor which ensures the fixation of the lateral support elements on the surface to mass formed by high pressure jet injection with purpose of providing stabilization of the excavation surface during excavation support and slope stability works, said jet anchor provides the combined usage of anchor body (120), ducted cutting wing (140), connectors, rigid wing opening plate (130), rope pulling apparatus (110), guide pipe elements (150) with new anchor equipment and jet grouting system and thus obtaining strength increased anchor element.

Claims

1. A jet anchor (100) for fixing lateral support elements to a formed mass by jet injection with purpose of providing stabilization of an excavation surface (ground surface) during excavation support and slope stability works to be performed, characterized in that it comprises; a rope pulling apparatus (110) an end of which is fixed to rod of a drilling machine and which is fixed by an anchor spline (112) by transferring an anchor rope (111) from other end, and which allows ducted cutting wings (140) to open by applying a pulling force over the anchor rope (111) by operating in coordination with a guide pipe (150), an anchor body (120) that is in a hollow tube form through which the anchor rope (111) is able to pass, wherein it has lugs (121) connected with the anchor body (120) at a body lower-part (126) and an anchor head (123) located under the lugs (121) and functioning as bearing for the lugs (121), and has an inner guide pipe (127) that allows a wing opening plate (130) to move in the center, the wing opening plate (130) comprising at least two mutually positioned fixation locks (131) that would function as locking such that they correspond to lock a housing (124) located on the anchor body (120) and positioned on ducted cutting wings (140) which are connected with the movable lugs (121) by being passed through outer surface of the anchor body (120), the ducted cutting wings (140) which are able to move from parallel position with the anchor body (120) towards vertical position with the anchor body (120), and comprise at least one connection housing (144) to be assembled with the lugs (121) located on the anchor body (120) and a lower wing profile (141) comprising chain ducts (143) as many as the number of chains (160) to be used in the jet anchor (100) system and an upper wing profile (142) covered on the lower wing profile (141), the guide pipe (150) comprising a lock gap (151) in a hollow pipe form which is to be engaged on the anchor body (120) and on the wing opening plate (130) located thereon and where the fixation locks (131) contained by the wing opening plate (130) is to be placed in order that it fits fully on the wing opening plate (130), and a rigid support plate (152) which contacts with the wing opening plate (130) during operation at its end that contact with the wing opening plate (130).

2. The jet anchor (100) for fixing lateral support elements to the formed mass with purpose of providing stabilization of the excavation surface during excavation support and slope stability works to be performed which are mentioned in claim 1, wherein each of the ducted cutting wings (140) of it, is able to move from the parallel position with the anchor body (120) towards the vertical position with the anchor body (120) and they consist of four pieces which can be opened simultaneously.

3. The jet anchor (100) for fixing lateral support elements to the formed mass with purpose of providing stabilization of the excavation surface during excavation support and slope stability works to be performed which are mentioned in claim 1, wherein it comprises chains (160) which are uniform support element for the jet anchor (100) and provide simultaneous opening of the ducted cutting wings (140), at the same time remain in concrete and are used in forming a composite structure.

4. The jet anchor (100) for fixing lateral support elements to the formed mass with purpose of providing stabilization of the excavation surface during excavation support and slope stability works to be performed which are mentioned in claim 1, wherein the ducted cutting wings (140) of it are manufactured from steel.

5. An application method of jet anchor (100) for fixing lateral support elements to the mass formed by high pressure jet injection at 350-500 bar with purpose of providing stabilization of the excavation surface during excavation support and slope stability works to be performed according to claim 1, wherein it comprises the following process steps; opening a drill hole to required depth, adequate amount of high pressure jet injection, obtaining a composite structure by ensuring the ducted cutting wings (140), the chain (160) and the anchor body (120) sections of the jet anchor (100) to stay in the concrete by lowering the jet anchor (100) to well before the concrete starts to set, lowering the guide pipe (150) to the well, fixing of the anchor ropes (111) that are outside the well to the rope pulling apparatus (110), fixing the rope pulling apparatus (110) to rod of the drilling machine or to an external tower, pulling up the anchor rope (111) and enabling the guide pipe (150) to be in contact with the ducted cutting wings (140) by pushing the wing opening plate (130) having a rigid structure, the opening of the ducted cutting wings 140 from the lower side by way of the wing opening plate (130) when the anchor rope (111) is pulled up, fixing the fixation locks (131) on the wing opening plate (130) to the lock housings (124), completely opening the ducted cutting wings (140) in the concrete by the fixing of the fixation locks (131) and thus preventing them to close back, demounting of the rope pulling apparatus (110) and removal of the guide pipe (150), waiting for the concrete to set, fixing the jet anchor (100) to lateral beams on the well surface.

Description

DESCRIPTION OF THE FIGURES

(1) FIG. 1; is illustration showing the general perspective view of jet anchor that is subject of the invention.

(2) FIG. 2; is illustration showing the general perspective view of rope pulling apparatus of the jet anchor that is subject of the invention.

(3) FIG. 3; is illustration showing the anchor body view of jet anchor that is subject of the invention.

(4) FIG. 4; is illustration showing the wing opening plate view of jet anchor that is subject of the invention.

(5) FIG. 5; is illustration showing the ducted cutting wings view of jet anchor that is subject of the invention.

(6) FIG. 6; is illustration showing sub-profile view of the ducted cutting wings of jet anchor that is subject of the invention.

(7) FIG. 7; is illustration showing top-profile view of the ducted cutting wings of jet anchor that is subject of the invention.

(8) FIG. 8; is illustration showing the guide pipe element view of jet anchor that is subject of the invention.

REFERENCE NUMBERS

(9) 100. Jet Anchor 110. Rope Pulling Apparatus 111. Anchorage Rope 112. Spline 120. Anchor Body 121. Lug 122. Lug Connection Housing 123. Anchor Head 124. Lock Housing 125. Body Upper-Part 126. Body Lower-Part 127. Inner Guide Pipe 130. Wing Opening Plate 131. Fixation Lock 132. Inner Guide Hole 140. Ducted Cutting Wing 141. Lower Wing Profile 142. Upper Wing Profile 143. Chain Duct 144. Connection Housing 150. Guide Pipe 151. Lock Gap 152. Rigid Support Plate 160. Chain

DESCRIPTION OF THE INVENTION

(10) The invention relates to jet anchor which is used for fixation of lateral support elements on surface to the mass formed by high pressure jet injection at 350-500 bar with the purpose of providing stabilization of the excavation surface during excavation support and slope stability works to be done, and which has rope pulling apparatus (110) and guide pipe (150) and comprises anchor body (120), wing opening plate (130), ducted cutting wings (140) and to operation method thereof.

(11) Anchor body (120) contained by the jet anchor (100) that is subject of the invention is in a hollow tube form through which anchor rope (111) is able to pass, wherein it has lugs (121) connected with anchor body (120) at the body lower-part (126) and anchor head (123) located under the lugs (121) and functioning as bearing for the lugs (121).

(12) There should be at least four ducted cutting wings (140) contained by the jet anchor (100) that is subject of the invention in order that the system stability is achieved and that the ducted cutting wings (140) can be opened simultaneously and wherein each of them is able to move from the parallel position with the anchor body (120) towards the vertical position with the anchor body (120). In cases where the strength is inadequate, more than four ducted cutting wings (140) can be utilized provided that they are produced with equal angles and ranges and/or the length can be extended considering ground conditions. Ducted cutting wings (140) comprise; at least one connection housing (144) to be assembled with the lugs (121) located on the anchor body (120) and lower wing profile (141) comprising chain duct (143) as many as the number of chains (160) to be used in the jet anchor (100) system and upper wing profile (142) covered on lower wing profile (141).

(13) Wing opening plate (130) contained by the jet anchor (100) that is subject of the invention leads the ducted cutting wings (140) to move from the parallel position with anchor body (120) towards the vertical position with anchor body (120) by contacting the ducted cutting wings (140) during the usage of the jet anchor (100). Wing opening plate (130); comprises at least two mutually positioned fixation lock (131) that would function as locking such that they correspond to lock housing (124) located on anchor body (120) and positioned on the ducted cutting wings (140) which are connected with movable lugs (121) by being passed through the outer surface of the anchor body (120). The inner guide hole (132) located on the wing opening plate (131) so that the wing opening plate (130) can move in the center is passed through the inner guide pipe (127) on the anchor body (120) to provide appropriate movement.

(14) The guide pipe (150) contained by the jet anchor (100) that is subject of the invention comprises; lock gap (151) in a hollow pipe form which is to be engaged on anchor body (120) and on wing opening plate (130) located thereon and where fixation locks (131) contained by wing opening plate (130) is to be placed in order that it fits fully on the wing opening plate (130), and rigid support plate (152) which contacts with wing opening plate (130) during operation at its end that contact with wing opening plate (130).

(15) The rope pulling apparatus (110) of the jet anchor (100) that is subject of the invention; in the process of opening of the ducted cutting wings (140), ensures the ducted cutting wings (140) to open by applying a pulling force over the anchor rope (111) by operating in coordination with the guide pipe (150). The rope pulling apparatus (110) is produced by welding the two rigid circular plates together with the profiles after a distance for the length of the anchor rope (111) is left. An end of the rope pulling apparatus (110) is fixed to rod of drilling machine and the anchor rope (111) is fixed to the other end thereof by means of the spline (112). The other free end of the anchor rope (111) is passed through the anchor body (120) and fixed to the anchor head (123) by the spline (112).

(16) The anchor body (120) is fixed to body lower part (126) of the hollow steel pipe through which anchor rope (111) is able to pass starting from the body upper part (125) by connecting wing opening plate (130) and also anchor head under this wing opening plate (130). Each ducted cutting wing (140) is mechanically assembled by matching lug connection housing (122) and connection housing (144) located on the ducted cutting wing (140) by entering between two lugs (121) located on body lower part (126). Depending on the length of the ducted cutting wings (140), the number of chain duct (143) is determined according to the designed endurance. After the chains (160) are passed through the chain ducts (143) of the ducted cutting wing (140), the upper wing profile (142) is mounted mechanically permanently on the lower wing profile (141) of ducted cutting wing (140) along the ducted cutting wing (140). The chains (160) used in the jet anchor (100) system serve as a uniform support member for the jet anchor (100). The chains (160) provide simultaneous opening of the ducted cutting wings (140), at the same time they remain in concrete and are used in forming a composite structure (reinforced concrete).

(17) The section of the wing opening plate (130), which can move along the anchor body (120) and which contacts with the ducted cutting wings (140), is produced angularly. In order that the wing opening plate (130) is able move in the center, the inner guide hole (132) is passed through the inner guide pipe (127) placed on the anchor body (120). In the implementation process, the guide pipe (150) in the well starts to push the wing opening plate (130) by contacting the rigid wing opening plate (130). When the wing opening plate (130) contacts the ducted cutting wings (140), starts to open the ducted cutting wings (140). When the fixation locks (131) located on wing opening plate (130) are in suitable position on anchor body (120), they enter into lock housing (124) placed on anchor body (120) and springs located in the fixation locks (131) are released and as a result of completely opening of ducted cutting wings (140) ensures it to remain fixed like this.

(18) In the jet anchor (100) of the present invention, at least four pieces of ducted cutting wings (140) with a ducted structure and made of steel are used. In cases where the strength is inadequate, the number of the ducted cutting wings (140) can be increased as desired, also taking the diameter of the anchor body (120) into account, provided that they are placed with equal angles on the anchor body (120).

(19) The anchor body (120) is manufactured from steel or other metal materials with sufficient strength.

(20) In the process of lowering the jet anchor (100) onto the ground, the guide pipe (150) manufactured from hollow metal pipe with sufficient strength is lowered to well after the jet anchor (100) is lowered to the well. The guide pipe (150) is provided with a lock gap (151) in the form of a slit to enable the wing opening plate (130) to be fully seated. The rigid support plate (152) of the guide pipe (150) is connected to the wing opening plate (130) to prevent buckling and bending of the metal. The guide pipe (150) applies pushing force on the wing opening plate (130) enabling the opening of the ducted cutting wings (140) by operating in coordination with rope pulling apparatus (110) both after the jet anchor (100) is centered to the well and after contacting to wing opening plate (130).

(21) In High Strength Jet Anchor (100) system, jet injection is applied first, then high strength jet anchor (100) equipment is lowered to the well and is opened when the concrete is fresh.

(22) The jet grouting system, which is used only for soil improvement purposes in the geotechnical engineering, is used as a new anchorage equipment and method by the jet anchor (100) that is subject of the invention, and its application method.

(23) The following method is applied to implement the jet anchor (100) to the ground; Opening of the drill hole to the required depth, Adequate amount of high pressure jet injection, Obtaining a composite structure by ensuring the ducted cutting wings (140), the chain (160) and the anchor body (120) sections of the jet anchor (100) to stay in the concrete by lowering the jet anchor (100) to the well before the concrete starts to take setting, Lowering the guide pipe (150) to the well, Fixing of the anchor ropes (111) that are outside the well to the rope pulling apparatus (110), Fixing the rope pulling apparatus (110) to rod of the drilling machine or to an external tower, Pulling of the anchor rope (111) and enabling the guide pipe (150) to be in contact with the ducted cutting wings (140) by pushing the wing opening plate (130) having a rigid structure, The opening of the ducted cutting wings 140 from the lower side by way of the wing opening plate (130) when the anchor rope (111) is pulled out, Fixing the fixation locks (131) on the wing opening plate (130) to the lock housings (124), Completely opening of the ducted cutting wings (140) in the concrete by the fixing of the fixation locks (131) and thus preventing them to close back, Demounting of the rope pulling apparatus (110) and removal of the guide pipe (150), Waiting for the concrete setting, Fixing the jet anchor (100) to lateral beams on the well surface by pulling in the project load.

(24) High efficiency utilization in projects that are exposed to overloads wherein piles, pile-plank, retaining walls are inadequate and even in cases where typical anchors cannot provide the desired performance, is allowed by the jet anchor that is subject of the invention and its application method.