Testing method of anti-slide treatment parameters of high cutting slope

Abstract

The invention relates to the technical field of stability estimation and anti-slide treatment of high cutting slopes, in particular to a testing method of anti-slide treatment parameters of a high cutting slope, and mainly solves the problem that at present, a quantitative optimization design method used for accurately determining anti-slide design parameters, such as pile location, is not yet provided. The invention determines a determining method of anti-slide pile design parameters of an accumulated layer landslide. The determining method comprises the following steps: first, determining an active slip area and a stable area of a cutting slop body, and sequentially determining the stability coefficients of the high cutting slope body, the positions of limit cutting slope points of the slope body and the cutting slope volume; and respectively calculating stability coefficients delta fk of all slope body strips from an actual engineering cutting slope point as the initial point to the rear edge of the slope body, determining the position and the length of the optimized anti-slide pile of a treated landslide by comparing the stability coefficients delta fk with the safety coefficients K, taking the surplus sliding force of the high cutting slope as a basic estimation parameter, and determining the limit anti-slide thrust design value to achieve the purposes of scientific and effective treatment of the landslide.

Description

technical field [0001] The invention relates to the technical field of high-cut slope side slope stability evaluation and anti-sliding control, in particular to a method for measuring anti-sliding control parameters of high-cut slopes. Background technique [0002] Due to the needs of traffic projects such as highways and railways, the construction of cities and towns in mountainous areas, and the impact of mountain topography, it is inevitable to carry out a large number of slope excavation, slope cutting and slope cutting projects in mountainous areas, and these slope cutting and excavation projects will inevitably Different degrees of disturbance and damage are caused to the structure and strength of the artificial high and steep slope and the boundary conditions of the landslide, thereby reducing and destroying the stability of the original slope, and often leading to landslide disasters. Among the above-mentioned landslide hazards induced by slope cuts, accumulative lan...

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Problems solved by technology

At present, the treatment design of slope-cutting anti-slide piles in my country is mainly based on the "Technical Code for Design and Construction of Landslide Prevention Engineering" (DZ / T0219-2006), "Code for Design of Highway Subgrade" (JTGD30-2004), and the above-mentioned landslide resistance The main design specifications for slide piles stipulate that the installation of anti-slide piles must ensure that the landslide body does not cross the pile top or slide between the piles, and no new landslides are generated; For areas with high foundation strength, when determining the pile layout, pile spacing, pile length and cross-sectional size, comprehensive consideration should be taken to achieve economical rationality and coordinate with the surrounding landscape; these regulations and specifications are only qualitatively determined. The approximate location and principle of the pile location, but does not provide a quantitative optimization design method to accurately determine the anti-sliding design parameters such as the location of the pile location

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