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A construction method for anti-sliding walls of rigid variable cross-section high-pressure rotary grouting piles

A technology of high-pressure rotary grouting piles and construction methods, which can be applied to sheet pile walls, excavation, and foundation structure engineering, etc., and can solve problems affecting the anchorage strength of anchor cables, loss of prestress of anchor cables, and poor anti-sliding effect of sliding zone soil.

Active Publication Date: 2021-09-14
广东省工程勘察院
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] Although the pull-out force of the anchor cable and the frictional resistance between the sliding rock layers are used to prevent the rock mass from sliding down, the slight movement of the slope during the construction of this scheme will affect the anchoring strength of the anchor cable, and because the anchor cable has prestress Insufficient in loss, permanent anti-corrosion and other aspects, the effect is poor in the anti-slip of sliding zone soil

Method used

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  • A construction method for anti-sliding walls of rigid variable cross-section high-pressure rotary grouting piles
  • A construction method for anti-sliding walls of rigid variable cross-section high-pressure rotary grouting piles
  • A construction method for anti-sliding walls of rigid variable cross-section high-pressure rotary grouting piles

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Embodiment Construction

[0037] Conjunction with the drawings of the present invention will be further described in detail.

[0038] Refer figure 1 A strength of the present invention disclosed a high pressure rotary sliding Tapered wall jet pile construction method, comprising the steps of:

[0039] Sl, landslide site visits, engineering geological survey and mapping, and analysis to determine the causes of slope stability control factors; 5 determining the position of sliding soil, thickness, and shape of physical and mechanical indicators;

[0040]S2, according to the on-site survey, the slope stability analysis is performed, determine the predetermined spatial position of the anti-slip pile wall, determine the number of anti-slip pile wall and the depth of the buried;

[0041] S3, sliding wall pile, drilling and construction for forming a high pressure spraying pile to a predetermined position, so that the bottom wall of the sliding carriage tape 5 is inserted into the undisturbed soil below the soil ...

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Abstract

The invention relates to a construction method of an anti-sliding wall with rigid variable cross-section high-pressure rotary grouting piles, which comprises that the anti-sliding wall includes several interlocking high-pressure rotary grouting piles, and the high-pressure rotary grouting piles pass through the sliding belt in the vertical direction soil and both ends are respectively located in the undisturbed soil below the sliding zone soil and the landslide body above the sliding zone soil, the top of the high-pressure rotary grouting pile is located in the landslide main body, and the top of the high-pressure rotary grouting pile is filled with backfill soil. The invention has the effect of making the sliding zone soil easy to form a soil arch effect and preventing the sliding zone soil from being easily deformed.

Description

Technical field [0001] The present invention relates to the technical field of landslide reinforcement, more particularly to a variant sectional stiffness high pressure jet grouting sliding pile wall construction method. Background technique [0002] Sliding soil refers to suffer occurrence and development of landslide in crushing, shearing, kneading, grinding, and with lower intensity in the sliding under specific physico-chemical conditions is formed, shaped as a plastic, plastic-like soft even plastic-like flow of rock and soil. [0003] Slope instability caused by the sliding soil is very serious natural disaster, existing, such as patent publication number CN108978687A the Chinese invention patent discloses a non-vertical structure of an anti-slide pile and landslide and slope treatment mounting method, comprising: sliding a non-vertical pile; pile provided between the beams, the top of the non-upright pile sliding beams is provided with a crown between the pile toe line abo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20E02D5/46E02D15/04
CPCE02D5/46E02D15/04E02D17/20E02D17/207
Inventor 张堪培秦前波谢盛庄诗鸿方进波张雷黄宇帆王玥力
Owner 广东省工程勘察院
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