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Cavern-anchor-pile combined anti-sliding reinforcing structure and construction method thereof

A technology for strengthening structures and construction methods, applied in basic structure engineering, excavation, construction, etc., can solve the problems of unsuitable use, deterioration, and reduced reliability of anchor cable structures, so as to reduce construction safety risks, improve stress state, reduce The effect of design size

Pending Publication Date: 2020-06-05
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Using anti-slide piles combined with anchor cables, the anchor cables can greatly improve the stress of the anti-slide piles, but under the action of high resistance force of the anchor cables, the anchoring force between the anchor body and the surrounding rock and soil body 8 will be affected by environmental changes, especially water However, continuous deterioration will result in a continuous decrease in reliability. When the properties of the rock and soil mass 8 in the anchorage section are poor, the anchor cable structure should not be used

Method used

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  • Cavern-anchor-pile combined anti-sliding reinforcing structure and construction method thereof
  • Cavern-anchor-pile combined anti-sliding reinforcing structure and construction method thereof
  • Cavern-anchor-pile combined anti-sliding reinforcing structure and construction method thereof

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Embodiment 1

[0045] Such as figure 2 with 3 As shown, a kind of tunnel-anchor-pile combination anti-sliding reinforcement structure described in this embodiment includes: tunnel structure 1, which is arranged on the main axis section of the vertical landslide, and is buried below the sliding surface 7; anchor structure 2, which is arranged on tunnel structure 1 The rock and soil mass 8 on the side of the rear edge of the landslide is fixedly connected with the tunnel structure 1; the anti-slide pile 3 is arranged in the landslide body 9 on the side below the tunnel structure 1; the tension anchor cable 4 is fixed at both ends of the tunnel structure 1 and Between the tops of the anti-slide piles 3; the construction channel 5 is set between the tunnel structure 1 and the landslide slope;

[0046] On the basis of the above, in a further preferred manner, the tunnel structure 1 is poured with reinforced concrete, the diameter is generally not less than 2.0m, and it is not less than 2m burie...

Embodiment 2

[0049] Such as figure 2 with 3As shown, the construction method described in this embodiment for forming a kind of tunnel-anchor-pile combined anti-sliding reinforcement structure as described in Embodiment 1 includes the following steps:

[0050] A. Plane positioning of the construction channel 5, excavate the construction channel 5 pile wells in sections, and set up retaining walls in sections until the bottom elevation of the tunnel structure 1;

[0051] B. Excavate the tunnel structure 1 well hole to both sides through the construction channel 5, and set up the well hole enclosure structure in sections;

[0052] C. Anchor structure 2 is constructed in the tunnel enclosure structure of tunnel structure 1, and the exposed length of anchor structure 2 in the tunnel is not less than 1.5m;

[0053] D. Plane positioning of the anti-slide pile 3, directional construction of the tension anchor cable 4 borehole at the top of the anti-slide pile 3, and the bottom of the borehole ...

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Abstract

The invention relates to the field of landslide reinforcement project, in particular to a cavern-anchor-pile combined anti-sliding reinforcing structure and a construction method thereof. The cavern-anchor-pile combined anti-sliding reinforcing structure comprises a cavern structure, an anti-sliding pile and a tension anchor cable, wherein the cavern structure is perpendicular to the section of the main shaft of a landslide body, and is embedded into a rock-soil body below a sliding surface; the anti-sliding pile is arranged in the landslide body at the lower side of the cavern structure, andextends into the rock-soil body; and one end of the tension anchor cable is connected to the cavern structure, and the other end of the tension anchor cable is connected to the upper part of the anti-sliding pile. According to the cavern-anchor-pile combined anti-sliding reinforcing structure disclosed by the invention, the cavern structure provides long-term durable and stable large tension for the upper part of the anti-sliding pile through the tension anchor cable, so that a stress state of the anti-sliding pile can be improved in case of effectively reinforcing a giant landslide, and therefore, a designed dimension of the anti-sliding pile is reduced, construction safety risk is reduced, and construction cost is reduced.

Description

technical field [0001] The invention relates to the field of landslide reinforcement engineering, in particular to a combined anti-slide reinforcement structure of a tunnel-anchor-pile and a construction method thereof. Background technique [0002] Landslides are distributed in a large number of mountainous areas in my country. When the stability of landslides is low and endangers the safety of construction projects or personnel and property, it is necessary to reinforce the landslides. [0003] Such as figure 1 As shown, the sliding surface 7 is used as the dividing line between the landslide mass 9 and the rock soil mass 8 . [0004] When the landslide is a huge and deep landslide, the traditional anti-slide pile measures need to use multiple rows, deep and long-section piles, which has high construction safety risks and high engineering investment; [0005] Using anti-slide piles combined with anchor cables, the anchor cables can greatly improve the stress of the anti-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20
CPCE02D17/20E02D17/207Y02A10/23
Inventor 姚裕春邹兴普程云封志军张耀高继涛
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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