Slide-resistant pile and anchor cable framework combined type active reinforcing method for side slope

An anti-sliding pile and combined technology, applied in the field of geotechnical engineering, can solve problems such as the lack of effective active reinforcement methods, and achieve the effects of avoiding a substantial decrease in the strength of the rock and soil, protecting it from damage, and reducing the design reinforcement force.

Inactive Publication Date: 2020-11-06
云南玉临高速公路建设有限责任公司 +1
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Problems solved by technology

[0007] The purpose of the present invention is to provide an active reinforcement method for slopes combined with anti-slide piles and anchor ca

Method used

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  • Slide-resistant pile and anchor cable framework combined type active reinforcing method for side slope
  • Slide-resistant pile and anchor cable framework combined type active reinforcing method for side slope

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Embodiment 1

[0034] In this embodiment, the object of the slope test is the slope of a certain expressway section. The experimental slope includes strongly weathered mudstone with developed joints and fissures, which are easily softened when exposed to water; the slope where the landslide is located is located on the right side of the line, deep The length of the excavation is about 115m, and the maximum height of the formed side slope is about 48.6m; when the deep excavation reaches the first-level side slope, a large area of ​​landslide occurs on the right side of the mountain, and the edge distance of the excavation groove line is 51.5m. Move inward by about 7m, the width of the slump crack is about 1.5-3m, the side distance of the slump crack is about 81.2m, and the height of the staggered crack is about 2-10m. After the slope is excavated, the anchor cable frame is used for reinforcement and protection. The specific process is as follows:

[0035] (1) First, qualitatively analyze the ...

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Abstract

The invention discloses a slide-resistant pile and anchor cable framework combined type active reinforcing method for a side slope. The slide-resistant pile and anchor cable framework combined type active reinforcing method comprises the following steps: measuring mechanical parameters before and after the side slope is softened, establishing a two-dimensional geological generalized model, and setting boundary conditions; taking softened rock-soil mechanical properties into the two-dimensional geological generalized model, calculating a first safety coefficient F1, and judging whether active reinforcing is performed or not; setting a combined reinforcing way and reinforcing parameters for a slide-resistant pile and anchor cable framework according to the two-dimensional geological generalized model and a potential slide layer state; taking original rock-soil mechanical parameters into the two-dimensional geological generalized model, calculating a second safety coefficient F2 for the reinforced side slope, and judging whether engineering stability is met or not. Based on rock-soil physical and mechanical parameter changes before and after excavation, slide-resistant piles and anchor cables are adopted to perform active reinforcing after excavation; and strength, at an initial state, of rock soil is utilized to prevent rock-soil strength from greatly reducing due to the fact that the excavated slope is deformed and softened.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to an active reinforcement method for a combined slope of an anti-slide pile and an anchor-cable frame. Background technique [0002] Nowadays, landslide geological disasters are a common problem in highway engineering construction. The highway design based on preliminary investigation needs to fully understand its geotechnical characteristics in the feasibility study stage, and qualitatively study potential landslides and their impact on engineering. During the construction process, work strictly in accordance with the specifications and relevant standards, supplemented by the design and guidance of experienced geotechnical engineers, problems such as landslides can be avoided. In the later operation, the potential landslide can also be prevented under normal circumstances. In general, from the point of view of the feasibility study stage of engineering constructi...

Claims

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Application Information

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IPC IPC(8): E02D17/20E02D5/22E02D5/74G06F30/20G06F119/14
CPCE02D5/22E02D5/74E02D17/207G06F30/20G06F2119/14Y02A10/23
Inventor 李斯涛李培锋李春张祝林张海峰周桂兰白静郭自东王新华汤华袁从华吴振君尹小涛邓琴宋罡
Owner 云南玉临高速公路建设有限责任公司
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