某隧道进口段斜坡工程地质勘察分析  

Geological survey of the slope engineering at the entrance of a certain tunnel

作　　者：严巍巍 Yan Weiwei(Sichuan Highway Planning,Survey,Design and Research Institute Ltd.,Chengdu Sichuan 610041,China)

机构地区：[1]四川省公路规划勘察设计研究院有限公司,四川成都610041

出　　处：《山西建筑》2024年第15期172-174,共3页Shanxi Architecture

摘　　要：康定隧道进口位于斜坡中下部,通过工程地质测绘、钻探等方法,对该隧道进口进行工程地质分析评价,提供隧道围岩级别划分及围岩设计主要参数。通过隧道进口斜坡体的定量定性分析,对其稳定性进行综合分析评价。经定量计算分析后,因地震工况下计算所得稳定性系数不满足规范要求,应以地震工况计算结果对仰坡进行适当加固与防护从而确保仰坡的整体稳定。The tunnel of Kangding Tunnel is located in the middle and lower part of the slope.Through engineering geologic mapping and drilling methods,this paper evaluates the inlet of Kangding Tunnel and provides the main parameters of the grade division and design of surrounding rock.Through the quantitative and qualitative analysis of the tunnel inlet slope,the stability of the tunnel is evaluated.After quantitative calculation and analysis,the stability coefficients calculated under seismic conditions do not meet the standard requirements,the results of seismic calculation should be used to properly strengthen and protect the slope to ensure the overall stability of the slope.

关 键 词：高速公路 隧道 围岩 斜坡 稳定性分析 

分 类 号：TU412[建筑科学—岩土工程]