摘要
针对G105遂川洪门段由于暴雨影响导致的边坡危岩体问题,根据现场踏勘和利用雷达三维扫描出危岩体现状及地质灾害形成的前因后果,从受地形及地层岩性因素、地质构造因素、外动力作用的控制等方面分析危岩体形成的机理,通过野外调查分析绘制危岩体赤平投影并通过定量分析危岩体稳定系数,结果表明定性分析与定量分析结果基本一致,设计时采用定性结合定量方法是可靠的方法,可为设计提供相应依据,在此基础上通过改移线位和处治方案对比,最后选择危岩体清除+主动消能网+明洞方案作为处治方案。
In view of the problem of dangerous rock mass on the slope of Hongmen section of Suichuan,G105,due to the influence of rainstorm,the formation mechanism of dangerous rock mass is analyzed from the aspects of terrain,formation lithology,geological structure and control of external dynamic action,according to the site survey and 3D radar scanning of the manifestation of dangerous rock mass and the causes and consequences of the formation of geological disasters,and the stereographic projection of dangerous rock mass is drawn through field investigation and analysis,and the stability coefficient of dangerous rock mass is quantitatively analyzed,The results show that the results of qualitative analysis and quantitative analysis are basically consistent,and the combination of qualitative and quantitative methods is a reliable method in design,which can provide corresponding basis for design.
作者
杨水生
黄沙路
邓凌燕
YANG Shuisheng;HUANG Shalu;DENG Lingyan(Jiangxi Highway Research and Design Institute Co.,Ltd.,Nanchang 330002,Jiangxi,China)
出处
《工程建设》
2023年第10期34-39,共6页
Engineering Construction
基金
江西省交通厅科技项目(2022H0030)。
关键词
危岩体
赤平投影
稳定性评价
明洞
dangerous rock body
stereographic projection
stability evaluation
open cut tunnel
作者简介
杨水生(1989-),男,工程师,从事公路勘测设计方面的工作。;通信作者:黄沙路(1982-),男,高级工程师,从事公路勘测设计方面的工作。
