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Built-in anti-slide pile active reinforcing method suitable for unstable slope

An anti-slide pile, an active technology, applied in excavation, climate change adaptation, construction, etc., can solve the problems of reducing engineering treatment costs, conservative engineering measures, single design method, etc., and achieve the effect of avoiding a sharp decline in rock and soil strength

Pending Publication Date: 2021-08-06
BROADVISION ENG CONSULTANTS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the deficiencies of the prior art, aiming at the current situation that the reinforcement and treatment measures for potential unstable slopes lag behind the deformation of the slope after excavation and lead to the potential instability risk of strength decline, and propose a method suitable for unstable slopes. The active reinforcement method of built-in anti-slide piles for stabilizing slopes can effectively solve the problem of slope instability caused by passive reinforcement after excavation of such slopes. The current situation of conservative engineering measures has effectively improved the level of slope problem treatment in engineering practice, and can greatly reduce the cost of engineering treatment

Method used

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  • Built-in anti-slide pile active reinforcing method suitable for unstable slope
  • Built-in anti-slide pile active reinforcing method suitable for unstable slope
  • Built-in anti-slide pile active reinforcing method suitable for unstable slope

Examples

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Effect test

Embodiment 1

[0049] An active reinforcement method for built-in anti-slide piles suitable for unstable slopes, comprising the following steps:

[0050] Step (1), preliminary identification of active reinforcement for unstable slopes: to find out possible potential sliding surfaces before slope construction, and perform rock mass sampling for potential sliding surfaces, and then according to GB / T 50123-2019 "Soil Engineering The physical and mechanical parameters of the rock and soil are obtained in the Test Method Standard; the physical and mechanical parameters of the rock and soil include the physical and mechanical parameters of the rock and soil in the initial state and the physical and mechanical parameters of the rock and soil after remodeling or deformation softening; if the rock and soil are remodeled or deformed and softened If the cohesive force or internal friction angle decreases by more than 20% compared with the initial state of rock and soil, then enter step (2), otherwise no...

Embodiment 2

[0058] An active reinforcement method for built-in anti-slide piles suitable for unstable slopes, comprising the following steps:

[0059] Step (1), preliminary identification of active reinforcement for unstable slopes: to find out possible potential sliding surfaces before slope construction, and perform rock mass sampling for potential sliding surfaces, and then according to GB / T 50123-2019 "Soil Engineering The physical and mechanical parameters of the rock and soil are obtained in the Test Method Standard; the physical and mechanical parameters of the rock and soil include the physical and mechanical parameters of the rock and soil in the initial state and the physical and mechanical parameters of the rock and soil after remodeling or deformation softening; if the rock and soil are remodeled or deformed and softened If the cohesive force or internal friction angle decreases by more than 20% compared with the initial state of rock and soil, then enter step (2), otherwise no...

Embodiment 3

[0072] An active reinforcement method for built-in anti-slide piles suitable for unstable slopes, comprising the following steps:

[0073] Step (1), preliminary identification of active reinforcement for unstable slopes: to find out possible potential sliding surfaces before slope construction, and perform rock mass sampling for potential sliding surfaces, and then according to GB / T 50123-2019 "Soil Engineering The physical and mechanical parameters of the rock and soil are obtained in the Test Method Standard; the physical and mechanical parameters of the rock and soil include the physical and mechanical parameters of the rock and soil in the initial state and the physical and mechanical parameters of the rock and soil after remodeling or deformation softening; if the rock and soil are remodeled or deformed and softened If the cohesive force or internal friction angle decreases by more than 20% compared with the initial state of rock and soil, then enter step (2), otherwise no...

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Abstract

The invention relates to a built-in anti-slide pile active reinforcing method suitable for an unstable slope, and belongs to the technical field of geotechnical engineering. The method comprises the steps that initial judgment of active reinforcement of an unstable side slope is conducted; a model of a side slope active reinforcement scheme is established; secondary judgment of active reinforcement is adopted for the side slope; and an active reinforcement scheme of the built-in anti-slide pile of the side slope and the like are designed. According to the method, changes of physical and mechanical parameters of rock and soil before and after engineering excavation are considered, the built-in anti-slide piles are adopted to actively reinforce the side slope before excavation, the strength of the rock and soil in the initial state is fully utilized, and the situation that the strength of the rock and soil is greatly reduced due to deformation and softening of the slope after excavation is avoided.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and specifically relates to an active reinforcement method with built-in anti-slide piles suitable for unstable slopes with large thrust of broken slopes, and is suitable for various types of extremely vulnerable projects such as soft rock and loose accumulation body slopes. For the part of the landslide caused by the disturbance, the initial state of the rock and soil and the degree of decline in physical and mechanical parameters after deformation and softening should be considered in the design, and the stability of the slope before and after reinforcement should be evaluated. Moreover, the active reinforcement method with built-in anti-slide piles can greatly reduce the engineering of slope disposal cost. Background technique [0002] Landslide geological disaster is a common problem in highway construction. Based on the highway design in the preliminary investigation, it is...

Claims

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Application Information

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IPC IPC(8): E02D17/20
CPCE02D17/20E02D17/207Y02A10/23
Inventor 陈维刘涛赵鑫张海太王康云汤华尹小涛苏宇李亚军袁从华李春晓吴振君邓琴陈贺
Owner BROADVISION ENG CONSULTANTS
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