安全与环境工程2024，Vol.31Issue(3)：170-177,187,9.DOI:10.13578/j.cnki.issn.1671-1556.20221556
全风化花岗岩路堑边坡降雨侵蚀时空分布特征测试与评估
Test and evaluation of spatiotemporal distribution characteristics of fully weathered granite cut slope under rainfall erosion
摘要
Abstract
To test and evaluate the spatiotemporal distribution characteristics of fully weathered granite cut slope under rainfall erosion,the fully weathered granite cut slope of Yunnan Molin Highway under con-struction was selected for field test.Firstly,combined with three-dimensional scanning test and electrical measurement,the shape characteristic parameters and slope resistivity profile were obtained;then,the nor-mal distribution model and quantile-quantile plot method were introduced to define the material properties of the slope,mapping slope erosion state with resistivity differences.The results show that large-scale ero-sion characteristics can be observed in the area at the bottom and middle of the slope(y=0～40 m),while multi-point concentrated erosion characteristics can be observed in the area at slope platforms,and the ero-sion depth is about 5 m.With the application of vegetation protection,large-scale erosion has transformed into a multi-point concentrated erosion,and the evaluation results have good consistency with the shape characteristic parameters.The research has practical significance for the rainfall erosion disaster preven-tion,and can also be used as a reference for similar research.关键词
全风化花岗岩路堑边坡/降雨侵蚀/时空分布特征/电测量技术/三维激光扫描测试Key words
fully weathered granite cut slope/rainfall erosion/spatiotemporal distribution characteristics/electrical measurement technology/three-dimensional laser scanning test分类
资源环境引用本文复制引用
杨榆璋,但路昭,袁刚烈,张涛,车爱兰..全风化花岗岩路堑边坡降雨侵蚀时空分布特征测试与评估[J].安全与环境工程,2024,31(3):170-177,187,9.基金项目
云南省交通投资建设集团有限公司科技创新项目(YCIC-YF-2022-17) （YCIC-YF-2022-17）
