A construction method for fast braiding and anchoring of multiple anchor cables

Abstract

A construction method for fast braiding and anchoring of multi-strand anchor cables includes braiding and threading. When braiding, the multi-strand cable bodies pass through the multi-strand cable anchor on the working platform in sequence, and are temporarily fixed to the multi-strand cable anchor with anchor nuts until all the multi-strand cable bodies pass through the multi-strand cable anchor, and then are numbered according to the sequence number; then, multiple cable body splitters are used to fix the multi-strand cable bodies at different length positions, and the multiple cable body splitters are located below the multi-strand cable anchor to ensure that the cable bodies are straight and not twisted; then guide heads are installed at the tail ends of the multi-strand cable bodies, and the corresponding tail ends of the multi-strand cable bodies are locked on the positioning plate through the multiple guide heads through the positioning plate until all the multi-strand cable bodies are correspondingly locked and numbered accordingly. The construction method of the present invention adopts overall threading, which is efficient and less risky.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and relates to a construction method for quickly braiding and anchoring multiple anchor cables. Background Art

[0002] The existing method of threading cables is to pull and install the multiple cables in each hole in batches, and the lead wire must be threaded each time, that is, on the front anchor surface, the traction cable is first inserted into the connector, the channel and the cable threading holes corresponding to the supporting plate of the rear anchor pad from top to bottom, and then the finished cable to be installed is connected to the traction cable, and the traction cable is pulled from the rear anchor surface. At the same time, the finished cable enters the channel from the front anchor surface until the finished cable anchor head comes out of the supporting plate of the rear anchor plate surface, and the above steps are repeated to complete the installation of other finished cables in the channel. This method of threading is very easy to get tangled in the channel, causing the cable strands to get tangled, or even difficult to pass through, resulting in poor quality and low efficiency. In addition, there are very few cable strand holes in the anchor, making it very difficult to thread the cable, and it is easy to damage the PE layer of the cable strand, resulting in reduced anti-corrosion effect, and it is very easy to cause corrosion of the load-bearing components, shortening the service life of the components, and even causing major quality and safety accidents. Summary of the invention

[0003] Since the current single-strand cable is very easy to get twisted, and cannot protect the PE sheath well, it is not only inefficient, but also very likely to cause major safety and quality problems. Therefore, the present invention provides a construction method for fast braiding and anchoring of multi-strand anchor cables to solve the problems of cable body twisting, PE damage and low efficiency in the existing cable threading method.

[0004] The technical solution adopted by the present invention is: a construction method for fast braiding and anchoring of multiple strands of anchor cables, comprising the following steps:

[0005] S1. Cable braiding: Multiple cables are passed through the multiple cable anchors on the working platform in sequence and temporarily fixed to the multiple cable anchors with anchor nuts until all the multiple cable bodies have passed through the multiple cable anchors, and then numbered according to the sequence number; then, multiple cable splitters are used to fix the multiple cable bodies at different lengths, and the multiple cable splitters are located below the multiple cable anchors to ensure that the cables are straight and not twisted; then guide heads are installed at the tail ends of the multiple cable bodies, and the corresponding tail ends of the multiple cable bodies are locked on the positioning plates through the multiple guide heads, until all the multiple cable bodies are correspondingly locked and numbered accordingly;

[0006] S2. Rope threading: Install a guide sleeve on the end face of the anchor pad to avoid damaging the PE layer of the cable body; connect one end of the traction rope to all the guide heads through the reserved hole of the anchor rope, and connect the other end of the traction rope to the traction machine; the crane lifts the multi-strand cable anchor through the lifting rope, so that the guide head passes through the guide sleeve, then the crane lowers the multi-strand cable anchor, starts the traction machine, overcomes the friction resistance, until it is in place, and fixes the multi-strand cable anchor.

[0007] A further technical solution is that a plurality of cable body splitters are fixed at different length positions of the plurality of cable bodies in different lengths.

[0008] A further technical solution is that the number of the cable body splitters is flexibly used according to the straightness of the multiple cable bodies.

[0009] A further technical solution is: during the braiding process, the multi-strand cable bodies are numbered in a clockwise direction on the multi-strand cable anchor; and the supporting plate of the rear anchor pad is numbered corresponding to the serial number of the multi-strand cable anchor.

[0010] Due to the adoption of the above technical solution, the construction method of the invention for fast braiding and anchoring of multiple strands of anchor cables has the following beneficial effects:

[0011] The braiding method of the present invention ensures that the cable strands are straight and not twisted, and can be braided on the working platform, which is efficient and safe; the cable threading method adopts the overall cable threading, which is efficient and less risky; the guide sleeve is used in the cable threading process to protect the PE layer of the cable strands from damage, that is, to ensure that the cable strands are not corroded, thereby improving the structural safety of the project and the effective service life of the cable strands. The existing single-strand cable threading efficiency is low. Considering the current 5-strand cable per hole, the overall braiding cable threading of the present invention can basically achieve 5 times the original efficiency, with significant economic benefits. The present method is suitable for the rapid overall braiding and threading of 1-N strands of anchor cables, where N strands depends on the size of the designed tensioning force, and the tensioning control stress of each steel strand is 0.55fptk. The front anchor surface is tensioned at one end, and according to the double control principle, it can be applied to the tensioning of anchor cables in multiple fields such as bridges, dams, ports, airports, slopes, foundation pits, liquefied gas tanks, and nuclear power. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The present invention is a construction schematic diagram of a method for quickly braiding and anchoring multiple strands of anchor cables in one embodiment.

[0013] In the figure:

[0014] 1. Multi-strand cable anchor; 2. Multi-strand cable I; 3. Multi-strand cable II; 4. Lifting rope; 5. Cable body splitter I; 6. Cable body splitter N; 7. Guide sleeve; 8. Positioning plate; 9. Guide head I; 10. Guide head II; 11. Traction cable; 12. Traction machine; 13. Front anchor plate; 14. Rear anchor plate. DETAILED DESCRIPTION

[0015] A construction method for fast braiding and anchoring of multiple strands of anchor cables, comprising the following steps:

[0016] S1. Cable braiding: Multiple strands of cables are passed through the multiple strand cable anchor 1 in sequence on the working platform, usually 5 strands of cables, and are temporarily fixed to the multiple strand cable anchor 1 with anchor nuts until all the multiple strands of cables have passed through the multiple strand cable anchor 1, and then are numbered in a clockwise direction on the multiple strand cable anchor 1. Then, multiple cable dividers are used to fix the multiple strands of cables at different lengths, and can be used flexibly according to the straightness of the multiple strands of cables. The cable dividers can be used, for example, with wrapping tape or adhesive tape to bind and fix the multiple strands of cables. The multiple cable dividers are located below the multiple strand cable anchor 1 to ensure that the cables are straight and not twisted; guide heads are then installed at the tail ends of the multiple strands of cables, and the multiple guide heads are used to pass through the positioning plate 8 to lock the corresponding tail ends of the multiple strands of cables on the positioning plate 8, until all the multiple strands of cables are correspondingly locked and numbered accordingly. The number of guide heads is equal to the number of cables. See, Figure 1 , multi-strand cable Ⅰ2 passes through multi-strand cable anchor 1 on the working platform and is temporarily fixed with an anchor nut; multi-strand cable Ⅱ3 passes through multi-strand cable anchor 1 on the working platform and is temporarily fixed with an anchor nut; and so on, until all multi-strand cable bodies pass through multi-strand cable anchor 1 and are numbered according to the serial number; the cable body splitter Ⅰ5 is fixed under the multi-strand cable anchor 1, and the cable body splitter N6 is used to divide the cable body into different lengths and fixed at different length positions to ensure that the cable body is straight and not twisted; the guide head Ⅰ9 passes through the positioning plate 8 to lock the tail end of the multi-strand cable Ⅰ2, and the positioning plate 8 is numbered according to the serial number of the multi-strand cable anchor 1; the guide head Ⅱ10 passes through the positioning plate 8 to lock the tail end of the multi-strand cable Ⅱ3, and the numbering; and so on, until all multi-strand cable bodies are correspondingly locked and numbered. The serial number of the multi-strand cable anchor 1 is also numbered on the supporting plate of the rear anchor pad. Ensure that the numbering of each cable body is not messed up.

[0017] S2. Rope threading: Install the guide sleeve 7 on the end face of the anchor pad to avoid damaging the PE layer of the cable body; connect one end of the traction rope 11 to all the guide heads through the traction rope 11 pre-installed in the reserved hole of the anchor cable, and connect the other end of the traction rope 11 to the traction machine 12; the crane lifts the multi-strand cable anchor 1 through the lifting rope 4, so that the guide head passes through the guide sleeve 7, and then the crane lowers the multi-strand cable anchor 1, starts the traction machine 12, overcomes the frictional resistance, until it is in place (that is, until the front end of the anchor cable extends out of the rear anchor pad 14, the multi-strand cable anchor 1 reaches the notch position of the front anchor pad 13, and then the guide sleeve 7 is removed), and the multi-strand cable anchor 1 is fixed.

[0018] The construction method of the invention can quickly fix the working platform by braiding cables, ensure that the cable strands are straight and not twisted, lower the crane cable, and pull the cable into place by the traction machine. The guide sleeve can protect the PE layer of the cable body, and the integrity is good and the efficiency is high.

[0019] The parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. The above content is a further detailed description of the present invention in combination with specific preferred implementation modes. It cannot be determined that the specific implementation of the present invention is limited to the records of the above embodiments. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the patent protection scope of the present invention determined by the submitted claims.

Claims

1. A construction method for fast braiding and anchoring of multiple strands of anchor cables, characterized in that: The following steps are involved: S1. Cable braiding: Multiple cables are passed through the multiple cable anchors on the working platform in sequence and temporarily fixed to the multiple cable anchors with anchor nuts until all the multiple cable bodies have passed through the multiple cable anchors, and then numbered according to the sequence number; then, multiple cable splitters are used to fix the multiple cable bodies at different lengths, and the multiple cable splitters are located below the multiple cable anchors to ensure that the cables are straight and not twisted; then guide heads are installed at the tail ends of the multiple cable bodies, and the corresponding tail ends of the multiple cable bodies are locked on the positioning plates through the multiple guide heads, until all the multiple cable bodies are correspondingly locked and numbered accordingly; S2. Rope threading: Install a guide sleeve on the end face of the anchor pad to avoid damaging the PE layer of the cable body; connect one end of the traction rope to all the guide heads through the reserved hole of the anchor rope, and connect the other end of the traction rope to the traction machine; the crane lifts the multi-strand cable anchor through the lifting rope, so that the guide head passes through the guide sleeve, then the crane lowers the multi-strand cable anchor, starts the traction machine, overcomes the friction resistance, until it is in place, and fixes the multi-strand cable anchor.

2. A construction method for fast braiding and anchoring of multiple strands of anchor cables according to claim 1, characterized in that: A plurality of cable body splitters are fixed at different length positions of the plurality of cable bodies in different lengths.

3. A construction method for fast braiding and anchoring of multiple strands of anchor cables according to claim 2, characterized in that: The number of the cable body splitters can be used flexibly according to the straightness of the multiple cable bodies.

4. The method for fast braiding and anchoring of multiple strands of anchor cables according to claim 2 is characterized in that: During the braiding process, the multi-strand cable bodies are numbered in a clockwise direction on the multi-strand cable anchor according to the serial numbers; and the supporting plate of the rear anchor pad is numbered corresponding to the serial numbers of the multi-strand cable anchor.

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