摘要
以鹞子岩(山岭)隧道区域地质及基础勘察设计资料为依据,选取因素评价指标,通过综合超前地质预测预报与实际开挖情况相结合的方法,建立了隧道围岩动态化分级体系;对BQ法围岩分级进一步优化及动态调整。工程实践表明:该动态分级体系对掌子面前方围岩情况实现精准预测分级有较强的实用性。
Bases on the regional geology and basic survey and design data of the mountain tunnel(Erziyan),factor evaluation indicators are selected.The dynamic classification system of tunnel surrounding rock is established by combining advanced geological forecast and actual excavation,and the grading of surrounding rock of BQ method is further optimized and dynamically adjusted.The engineering practice shows that the dynamic grading system of surrounding rock has strong practicability for accurately predicting and grading surrounding rock conditions in front of the tunnel face.
作者
李永志
王华
刘盛
刘石磊
刘润华
吕敬钱
LI Yongzhi;WANG Hua;LIU Sheng;LIU Shilei;LIU Runhua;LYU Jingqian(China Railway Tunnel Consultants Co.,Ltd.,Guangzhou 511458,China;The First Construction Division Co.,Ltd.of China Railway Tunnel Group,Chongqing 401123,China)
出处
《路基工程》
2021年第3期171-175,共5页
Subgrade Engineering
关键词
隧道工程
因素指标
综合超前地质预报
BQ法
围岩动态分级
tunnel engineering
factor index
comprehensive advanced geological forecast
BQ method
dynamic classification of surrounding rock
