A telescopic burr-type anchor cable suitable for soft soil and its construction method

A burr type, anchor cable technology, which is applied in the direction of foundation structure engineering, construction, sheet pile wall, etc., can solve the problem of small contact area between anchor cable and grouting body, poor grouting effect of grouting anchor cable and anchor cable anchorage Poor effect and other problems, to achieve the effect of enhancing the anchoring effect, solving the poor pull-out resistance, and ensuring the compact effect

Active Publication Date: 2021-08-27
JINAN MUNICIPAL ENG DESIGN & RES INSITITUTE GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the existing anchor cable technology is applied, in the anchor cable construction in soft soil areas, the anchor cable anchoring effect is often poor due to insufficient anchor force in the anchor section, or the grouting anchor cable grouting effect is not good, and the anchor cable and grouting The contact area between the grouts is too small, resulting in poor overall pull-out resistance of the anchor cable

Method used

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  • A telescopic burr-type anchor cable suitable for soft soil and its construction method
  • A telescopic burr-type anchor cable suitable for soft soil and its construction method
  • A telescopic burr-type anchor cable suitable for soft soil and its construction method

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Embodiment 2

[0046]This embodiment discloses a construction method for a retractable burr-type anchor cable suitable for soft soil: the anchor cable mechanism is assembled in advance, and the prefabricated grouting pipe, steel strand, anchor piece, circular The ring push plate and the steel thorn are put into the hollow steel pipe, so that one end of the steel thorn is placed on the hole surface of the hollow steel pipe wall, and the pre-assembly of the entire anchor cable mechanism is completed, such as Figure 9 As shown, the construction includes the following steps:

[0047] Step 1: According to actual construction needs, holes are drilled on the surface of the soil body 11 at positions to be anchored.

[0048] Step 2: Insert the hollow steel pipe of the pre-assembled anchor cable into the drilled hole.

[0049] Step 3: Connect the grouting pipe to the grouting pump, and carry out segmental grouting into the hollow steel pipe through the grouting pipe. Specifically, the initial positi...

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Abstract

The invention relates to a telescopic burr-type anchor cable suitable for soft soil and a construction method, comprising a grouting pipe inside a hollow steel pipe, a plurality of steel strands wrapped around the grouting pipe, and the grouting pipe can be placed on the steel strand The wrapped space moves along its own axis direction. One end of the steel strand is fixedly connected to the anchor, and the other end is connected to the anchor. Multiple supporting rings are arranged on the anchoring section of the steel strand, and the steel strand at the position of the supporting ring is stretched. , the support ring is fixedly connected with the steel strand, so that adjacent steel strands form a gap for the slurry to flow out. There are multiple circular push plates on the outer circumference of the steel strand, and multiple steel thorns are connected to the circular push plate. The hollow steel pipe The pipe wall is provided with openings matching the steel thorns, and the movement of the push plate along the axis of the hollow steel pipe can drive the steel thorns to protrude to the outside of the hollow steel pipe through the openings. Using the anchor cable of the present invention increases the anchorage. force, good anchoring effect.

Description

technical field [0001] The invention relates to the technical field of anchor cables, in particular to a telescopic burr-type anchor cable suitable for soft soil and a construction method. Background technique [0002] At present, anchoring and grouting support technology is widely used at home and abroad to strengthen soft soil areas. When the existing anchor cable technology is applied, in the anchor cable construction in soft soil areas, the anchor cable anchoring effect is often poor due to insufficient anchor force in the anchor section, or the grouting anchor cable grouting effect is not good, and the anchor cable and grouting The contact area between the grouts is too small, resulting in poor overall pull-out resistance of the anchor cable. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art and provide a telescopic burr-type anchor cable suitable for soft soil, which can effectively improve the ov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/74E02D15/04
CPCE02D5/74E02D15/04
Inventor 郑召怡徐豹之王海平张文王晓李彦明
Owner JINAN MUNICIPAL ENG DESIGN & RES INSITITUTE GRP
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