Permanent and temporary combined type ground anchor and building method thereof

A perpetually combined and combined technology, used in construction, infrastructure engineering, sheet pile walls, etc., can solve problems such as difficulty in setting ground anchors, consuming a lot of manpower, material resources and time, and narrow working surface, and achieve the overall structure. The effect of stability, shortening construction period and saving construction cost

Inactive Publication Date: 2022-02-25
GUANGXI ROAD & BRIDGE ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the construction of highways in mountainous areas, especially in the construction of bridges such as arch bridges, suspension bridges and cable-stayed bridges, ground anchors need to be installed to complete the lifting construction. Unable to provide an effective working surface, and often do not have the space for new ground anchors as temporary structures, it takes a lot of manpower, material resources and time for the construction of ground anchors, resulting in higher construction costs and longer construction periods for bridges in mountainous areas
[0004] Therefore, there is an urgent need for a technical solution to solve the difficulties in setting ground anchors in mountainous areas, the inability to provide a stable rear anchor force for hoisting construction, and the technical problems that affect the construction cost and construction period in mountainous areas.

Method used

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  • Permanent and temporary combined type ground anchor and building method thereof
  • Permanent and temporary combined type ground anchor and building method thereof
  • Permanent and temporary combined type ground anchor and building method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Such as Figure 1-Figure 9 As shown, a combined ground anchor of a permanent combination in the present embodiment is set as an example in the construction of a bridge in a mountainous area. The combined ground anchor includes an anchor structure 1 and a number of prestressed anchor cables 2, such as Figure 4 As shown, the anchorage structure 1 includes a bridge pile foundation 11 and a cap 12. The cap 12 is arranged on the top of the pile foundation 11 and can directly bear the upper bridge pier. The pile foundation 11 and the cap 12 are both reinforced concrete structural members, and The steel bars are connected to each other. During the binding process of the steel cages of the pile foundation 11 and the cap 12, the embedded pipe fittings 3, the embedded rods 4 and the embedded plates 5 are located on the anchorage structure 1 close to the hoisting cables 6. On one side of the prestressed anchor cable 2, one end of the prestressed anchor cable 2 passes through the ...

Embodiment 2

[0053] A method for establishing a combined ground anchor that is permanently combined as in embodiment 1 comprises the following steps:

[0054] S1: According to the hoisting weight, calculate the tensile force borne by the anchorage structure, and obtain the number of anchor ends of the hoisting cable 6 on the anchorage structure 1 .

[0055] Specifically, the hoisting weight can be obtained according to the components to be hoisted in the project construction, according to the design drawings and experience before construction, and then the number of hoisting ropes 6 can be obtained according to the hoisting weight, and the hoisting cable 6 can be used to cooperate with the hoisting. The tension angle of the cable 6 is subjected to stress analysis to obtain the stress situation of the anchorage structure 1 during use.

[0056] S2: Combined with S1, according to the rated tension value of a single prestressed anchor cable 2, the number of anchoring ends of the prestressed an...

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Abstract

The invention relates to the field of cable crane ground anchors, in particular to a permanent and temporary combined type ground anchor and a building method thereof. The combined type ground anchor comprises an anchorage structure and a plurality of pre-stressed anchor cables, the anchorage structure comprises a building pile foundation, and a plurality of pipe fittings, a plurality of pre-buried rods and a plurality of pre-buried plates are pre-buried in the anchorage structure; one end of the pre-stressed anchor cable penetrates through the pipe fitting and then is anchored to the anchorage structure, the other end of the pre-stressed anchor cable is anchored to the ground, the end of the pre-embedded rod penetrates through the pre-embedded plate and then extends out of the anchorage structure, the pre-embedded rod can be detachably connected with an anchoring end, and the anchoring end is used for being connected with a hoisting cable. The combined ground anchor construction method is simple, stable post-anchoring force is provided for a hoisting cable, a ground anchor structure which is stable in structure and convenient to construct is provided for mountainous areas where temporary ground anchors are difficult to arrange, the construction cost is saved, the construction period is shortened, the overall structural stability of an anchorage structure is achieved, and the hoisting safety is ensured.

Description

technical field [0001] The invention relates to the field of cable-suspended ground anchors, in particular to a combined ground anchor with permanent and permanent combination and its establishment method. Background technique [0002] The main types of existing ground anchors are pile-type ground anchors and gravity-type ground anchors, which are mainly temporary structures designed and constructed to provide post-anchor force during the construction process of large-scale hoisting and hoisting to ensure safety during hoisting and hoisting. . [0003] In the construction of highways in mountainous areas, especially in the construction of bridges such as arch bridges, suspension bridges and cable-stayed bridges, ground anchors need to be installed to complete the lifting construction. An effective working surface cannot be provided, and there is often no space for newly-built ground anchors as temporary structures. It takes a lot of manpower, material resources and time for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/80E02D5/74E02D27/12E02D27/14
CPCE02D5/80E02D5/74E02D27/12E02D27/14
Inventor 黄香健侯凯文罗小斌匡志强沈耀唐雁云叶增鑫黄志发黄崧黄酉马瑞艺班贵生
Owner GUANGXI ROAD & BRIDGE ENG GRP CO LTD
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