Method of Determining Non-circular Slip Surface of Slope Using Displacement Monitoring

Abstract

The invention relates to the field of geotechnical engineering slope stability evaluation and prevention and treatment, in particular to a method for determining benching non-circular slip surfaces by displacement monitoring. The method includes: (1) surveying and mapping feature positions and parameters of a slope slip surface; (2) setting monitoring points of main slip surface displacement of a slope; (3) collecting and processing slope displacement monitoring data; (4) drawing a profile map of a slope main axis; (5) determining a slip mass distribution circle center and a slip surface position; and (6) drawing a complete main axis slip plane position. The method has the advantages that an initial slip surface needs not to be supposed, feature points that the slip surface passes in advance need not to be set, the slope slip surface is determined comprehensively just according to observation point displacement vector data, rear edge cracked wall position and shape and front edge shear opening position information, and determination of the slip surface position of a slip mass is no longer limited to a single slip circle and a circle center.

Description

technical field [0001] The invention relates to the field of geotechnical engineering slope stability evaluation and prevention, in particular to a method for determining and applying a slip surface of an arbitrary shape of a slope. Background technique [0002] With the rapid development of engineering construction in our country, in the construction of civil engineering infrastructure, it is inevitable to evaluate the slope stability, and to propose prevention and treatment measures and treatment plans in turn. The position of the slip surface is one of the prerequisites and essential elements for slope stability evaluation and prevention. [0003] The prerequisite for slope stability analysis and evaluation is how to effectively and accurately determine the most dangerous slip surface of the slope. So far, in the field of geotechnical engineering, the slope stability evaluation method generally adopts the limit equilibrium evaluation method of the circular sliding surfac...

AI Technical Summary

Problems solved by technology

[0006] Sun Haishan et al. used the graphical method to determine the slip surface and its inclination, but this method is only applicable to the overall sliding slope. At the same time, the inclination of the cracks in the upper part of the slide mass and the shear outlet are not considered. Approximate value of slip surface in rock mass

[0007] Although useful explorations have been made on the method of determining the non-circular slip surface, this problem has not been well resolved so far. It can be said that there is no fast and effective method to determine the real non-circular slip surface of the slope.

Images