An active reinforcement method for anti-slide piles for soft rock and loose accumulation slopes
A technology of loose accumulation and anti-slide piles, applied in excavation, instruments, artificial islands, etc., can solve problems such as slope instability, continuous expansion, and continuous growth of slope deformation, and achieve the level of improving slope problem treatment , save engineering cost, protect the effect from damage
Active Publication Date: 2019-07-16
云南交投集团公路建设有限公司 +3
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] Aiming at the current situation that the reinforcement of soft rock and loose accumulation slope lags behind the excavation of the slope, a series of follow-up problems such as the continuous growth of slope deformation and the continuous expansion of the scope of influence, etc., a method for soft rock and loose accumulation is proposed. The active reinforcement method of anti-slide piles for body slopes can effectively solve the problem of slope instability often caused by passive reinforcement after excavation of such slope engineering, which improves the current situation of single and conservative design methods for slope problems, and improves The level of slope problem treatment in engineering practice, and can save a lot of engineering costs
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0044] (1) The surface of the exit slope of the Gongsi Tunnel on the Weide Secondary Highway is mainly residual slope accumulation, and the lower part is a strong-weak weathered rock formation. There is a higher natural slope beyond the top of the cut slope, and the slope of the natural slope is relatively steep. After the slope is excavated, the method of anchoring and spraying is used for reinforcement and protection. See photos before slope failure Figure 1-1~Figure 1-2 .
[0045] Step 1. Qualitative identification of active reinforcement objects: comprehensively considering conditions such as lithology, topography, and engineering excavation, in this embodiment, the residual slope accumulation of the slope is relatively thick, the catchment area is large, the cut slope is steep, and the slope ratio Most of them are between 1:0.3 and 1:0.5. According to such lithological conditions, topographic and geomorphic conditions, and empirical values of rock mass analog paramete...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an antiskid pile active reinforcing method for soft rocks and loose deposit body slopes. The method comprises the steps of: quantitatively judging lithology conditions of active reinforcing objects; building geology generalized models of two-dimensional slopes; setting boundary conditions of the geology generalized models of the two-dimensional slopes; calculating safety coefficients F1 of the excavated slopes, judging if active reinforcement is needed, and if so, designing antiskid pile reinforcing schemes; calculating numerical values again to reach safety coefficients F2; and judging if preset engineering stability requirements are met. The method considers the physical and mechanics parameter change of rocks and soil before and after engineering excavation, adopts antiskid piles to actively reinforce slopes before excavation, and fully uses the strength of initial states of the rocks and the soil to prevent great reduction of the strength of the rocks and the soil caused by deformation and softening of slope bodies after excavation.
Description
technical field [0001] The invention belongs to the technical field of geotechnical engineering, and more specifically relates to an active reinforcement method for anti-slide piles for soft rock and loose accumulation body slopes, which is suitable for soft rock and loose accumulation whose physical and mechanical parameters of rock and soil are greatly reduced after engineering excavation Considering the initial state of rock and soil and the changes in physical and mechanical parameters after deformation and softening, the stability of slopes under different states is evaluated, and the active reinforcement of anti-slide piles can greatly reduce the cost of slope reinforcement projects. Background technique [0002] The problem of landslides has always been a common occurrence in highway construction. These issues require qualitative research or sufficient awareness before road construction. Most of the problems can be avoided in the feasibility study stage. As for the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20E02D29/02G06F17/50
CPCE02D17/207E02D29/02G06F30/13
Inventor 张国辉周爱民杨建成李建龙冯志秀马娅陈世乐关凤林肖振江袁从华汤华吴振君
Owner 云南交投集团公路建设有限公司