Downslide thrust evaluation method for variable width slicing of side slope

Abstract

The invention relates to the field of side slope engineering stability evaluation and landslide hazard prediction and prevention, in particular to a downslide thrust evaluation method for variable width slicing of a side slope, and mainly solves the problems that the conventional circular slice method and the residual downslide thrust method have difficulty in meeting the accuracy requirement, and misjudgment occurs easily. The downslide thrust evaluation method comprises the following steps: firstly, comprehensively determining a major slipping longitudinal profile map of a side slope body through exploration and determination of an underlying slipping surface, and according to changes of the inclination theta of the underlying slipping surface, determining the extreme point and the inflection point of the inclination changing curve, so as to obtain sliced regions of the underlying slipping surface of the side slope body by division; performing uniform angular slicing on the sliced regions and determining the slicing width of soil stripes of the overall side slope body, the residual downslide thrust direction and the positions of action points. The downslide thrust evaluation method for variable width slicing of the side slope, provided by the invention, effectively solves the problems of precise calculation and stability evaluation of the residual downslide thrust of a side slope when the underlying bedrock surface is a continuous slowly-varying arc-shaped slipping surface, thereby being extremely high in practicability and effectiveness.

Description

technical field [0001] The invention relates to the fields of slope engineering stability evaluation and landslide disaster prediction and prevention, in particular to a sliding thrust evaluation method for slopes with variable width slices. Background technique [0002] Slope is one of the most basic geological environments for human engineering activities, and it is also the most common engineering form in engineering construction. The correct understanding of slopes, reasonable evaluation, proper treatment and the minimization of disasters caused by slope instability have huge social, economic and environmental impacts in the fields of slope engineering stability evaluation and landslide disaster prediction and prevention. benefit. [0003] At present, the most widely used method for slope stability analysis is the limit equilibrium method. This method assumes the landslide as a rigid body, analyzes its mechanical equilibrium state along the sliding surface, calculates ...

AI Technical Summary

Problems solved by technology

Therefore, this method effectively solves the problem of accurate calculation and stability evaluation of the residual sliding thrust of the slope whose underlying bedrock surface is a continuously slowly changing arc-shaped slip surface.

Images