Reinforcement structure of anti-slide pile of landslide in highly seismic area and construction method

A technology for strengthening structures and construction methods, which is applied in basic structure engineering, excavation, construction, etc., can solve the problems of easy damage to anti-slide piles, high project investment, high investment in anti-slide pile reinforcement projects, and achieve environmental protection promotion and project saving The effect of investment and construction safety

Pending Publication Date: 2020-06-02
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Anti-slide piles are currently the most widely used treatment measures for landslide reinforcement. However, due to the amplification of earthquakes in high-intensity earthquake areas, traditional anti-slide piles are prone to damage, or the investment in anti-slide pile reinforcement

Method used

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  • Reinforcement structure of anti-slide pile of landslide in highly seismic area and construction method
  • Reinforcement structure of anti-slide pile of landslide in highly seismic area and construction method

Examples

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Example Embodiment

[0032] Example 1

[0033] like Figure 1-2 As shown, a landslide anti-slide pile reinforcement structure in a high-intensity earthquake area according to the present invention includes an anti-slide pile 1 arranged on the landslide body and an anchor 2 located on the upper side of the landslide, and the anchor 2 is an anchor rod and / or anchor lines.

[0034] The anti-slide pile 1 is provided with a widening structure 11 on the upper side of the landslide at the sliding surface 3, one side of the widening structure 11 is located above the sliding surface 3, and the other side is located below the sliding surface 3, so The height of the widening structure 11 on the side above the sliding surface 3 is greater than or equal to 3m, and the height of the widening structure 11 on the side below the sliding surface 3 is greater than or equal to 5m.

[0035] The widening structure 11 is a variable cross-section structure, the upper and lower ends of the widening structure 11 in the h...

Example Embodiment

[0037] Example 2

[0038] like Figure 1-2 As shown, a kind of construction method of the landslide anti-sliding pile reinforcement structure in the high-intensity earthquake area described in embodiment 1 of the present invention comprises the following steps:

[0039] ① The anti-slide pile 1 is positioned on the plane, the pile well of the anti-slide pile 1 is excavated in sections, and the lock mouth and retaining wall structure of the anti-slide pile 1 are arranged in sections until the bottom elevation of the widening structure 11;

[0040] ② The anchor 2 is drilled sideways above the landslide facing the widening structure 11, and the anchor 2 is tensioned and locked on the wall of the pile well with a steel plate, and one end of the anchor 2 is exposed by 0.5m-1m ;

[0041] ③ Binding steel bars within the scope of the widening structure 11 and fixing the stiffeners 12, the steel bars of the widening structure 11, the stiffening ribs 12 and the exposed ends of the anch...

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Abstract

The invention discloses a reinforcement structure of an anti-slide pile of a landslide in a highly seismic area and a construction method. The reinforcement structure includes the anti-slide pile arranged on a landslide body and anchoring parts located on the upper side of the landslide body, wherein a widening structure is arranged in the position, located on the upper side of the landslide on the sliding surface, of the anti-slide pile, one side of the widening structure is located above the sliding surface, the other side of the widening structure is located below the sliding surface, the widening structure is provided with stiffening ribs, the stiffening ribs are arranged in the height direction of the widening structure in a penetrating mode, and the anchoring parts are connected to the widening structure. By using the reinforcement structure, the anti-slide pile near the sliding surface is provided with the widening structure, the stiffening ribs are embedded, the widening structure can increase the shear-bearing capacity of the anti-slide pile, and the stiffening ribs can greatly increase the anti-bending capacity of the anti-slide pile, so that the most unfavorable positionof the anti-slide pile is strengthened under a strong earthquake. The anchoring parts can enhance the anti-slide capacity of the anti-slide pile, and thus the project investment can be saved; and thearrangement of the widening structure increases the construction space of the anchoring parts, and the fast and convenient construction of the anchoring parts can be realized.

Description

technical field [0001] The invention relates to the field of landslide reinforcement engineering, in particular to a landslide anti-slide pile reinforcement structure and construction method in a high-intensity earthquake area. 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. Anti-slide piles are currently the most widely used treatment measures for landslide reinforcement. However, due to the amplification of earthquakes in high-intensity earthquake areas, traditional anti-slide piles are prone to damage, or the investment in anti-slide pile reinforcement projects is very high. The main reason is that the installed anti-slide piles are damaged without taking targeted strengthening measures at the parts with the strongest earthquake response, or the anti-...

Claims

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Application Information

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IPC IPC(8): E02D17/20
CPCE02D17/20E02D17/207
Inventor 姚裕春李安洪袁碧玉陈伟志张耀高继涛
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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