Measuring method of slippage face

Abstract

The invention belongs to the field of engineering slope and geological disaster evaluation, and relates to a measuring method of a slippage face. The slopes of all monitoring point total displacement vectors on one profile are used, a slippage face shape curve, namely the slippage face position under a certain coordinate is calculated through the least square method and the regression iterative, the slope displacement vector angle iteration is used for approaching a true slippage face in any shape, and the defects that existing engineering geology reconnaissance practical work is heavy, the limit equilibrium method trial process is complex and long, or human factor disturbance enables results to have one-sidedness and boundedness are overcome; selection of a constitutive relation and soil layer physical and mechanics parameters in finite element software is effectively avoided; and according to the method, displacement vector angle iteration is jointly achieved through programming language, the AUTO CAD mapping software and the Microsoft Excel data processing software, and the true slippage face position is determined. The measuring method is simple in process procedure, the slope sliding section position determination is accurate, calculation data are accurate, and application is wide.

Description

[0001] Technical field: [0002] The invention belongs to the field of evaluation of engineering slopes and geological disasters, and relates to a method for determining the position of slip surfaces of soil slopes and loose rock slopes, in particular to a method for determining the position of slip surfaces of slopes, especially It is a method of measuring slip surface. [0003] Background technique: [0004] The analysis and evaluation of slope stability is one of the classic problems in soil mechanics and geotechnical engineering design, and the determination of the position of the slip surface is the primary condition and plays a vital role in the evaluation of slope stability and the design of prevention and control engineering. At present, there are generally several methods for determining the position of the slip surface: one is to use the engineering geological analysis method to find the position of the slip surface through pits, trenches, drilling geological surveys ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art, using the slope of the total displacement vector of each monitoring point on the same section to obtain the shape curve of the slip surface under a certain coordinate through the least square method and regression iteration, that is, to determine the position of the slip surface , use slope surface displacement vector angle iteration to approach the real slip surface of any shape, overcome the shortcomings of the existing engineering geological survey, such as the heavy actual work and the tedious and lengthy trial calculation process of the limit equilibrium method, or the one-sidedness and limitations of the results due to human disturbance; effective Avoid the selection of constitutive relationship and physical and mechanical parameters of soil layer in finite element software; use programming language, AUTO CAD drawing software and Microsoft Excel data processing software to realize the measurement method of displacement vector angle iteration to determine its real slip surface position

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