GAO Bing-li, LI Duo, LI Lang, et al. Stability analysis and visualization of rock slope blocks based on coordinate projection method[J]. 2022, 43(1): 181-194.
DOI:
GAO Bing-li, LI Duo, LI Lang, et al. Stability analysis and visualization of rock slope blocks based on coordinate projection method[J]. 2022, 43(1): 181-194.DOI: 10.16285/j.rsm.2021.1059.
Stability analysis and visualization of rock slope blocks based on coordinate projection method
Block collapse or sliding is one of the main failure modes of rock slope engineering. Namely
block stability analysis plays a key role in rock slope engineering. Taking the Shenxianju rock slope in Xianju County
Zhejiang Province as the research background
this paper mainly conducts the stability analysis and visualization of rock blocks. A new method for fitting structural planes and free faces is proposed based on the linear regression method and the non-uniform rational B-spline method. Then
based on the coordinate projection method
the method for calculating the stability coefficient of the single-sided sliding surface and double-sided sliding surface blocks is proposed. Finally
the unmanned aerial vehicle (UAV) measurement technology combined with the coordinate projection method is used to develop a CPG program using Matlab
which can be adopted in the stability analysis of planar polyhedron blocks and curved blocks in rock slope engineering. This program enables the spatial representation and visualization of structural planes an free faces and unstable blocks. Engineering practice shows that the new proposed method is effectively applicable to engineering geological disasters
such as rockfall and collapse. The results of program calculation are basically consistent with those of the coordinate projection block theory
demonstrating that this method is reliable and the developed CPG program is feasible. This method is of vital significance in practical engineering since it can greatly improve the efficiency of block stability analysis.