追求隧道工程与地质体的和谐——矿山法隧道工程若干热点问题探讨  

For the Harmony between Tunnelling and Geological Body——Discussion on Focused Hot Issues in Conventional Tunnelling

作　　者：王建宇[1] WANG Jianyu(China Railway Southwest Research Institute Co.,Ltd.,Chengdu 611731)

机构地区：[1]中铁西南科学研究院有限公司,成都611731

出　　处：《现代隧道技术》2023年第4期1-5,共5页Modern Tunnelling Technology

摘　　要：随着矿山法隧道工程修建理念从对围岩“被动防范”更新为“主动控制”,隧道工程师们的注意力聚焦于监控量测、围岩改良、双重型衬砌结构的整合性和设计计算模型等热点问题,文章对此进行了探讨。同时,针对高地应力背景的挤压性软弱岩体和高水头地下水的两种特异地质环境的隧道工程难题,阐述了以“屈让原则”代替“对抗原则”,分别采用“围岩锚固+恒阻支护”和“围岩注浆+衬砌疏排”的处治手段体现隧道工程和地质体和谐的理念。With the construction concept innovation in conventional tunnelling changing from“passive supporting”to“active controlling”,some focused hot issues such as monitoring measurement,ground improvement,integration of the double-shell lining and structural design models are discussed in this paper.Meanwhile,in response to the tunnelling challenges in two specific geological environments namely the squeezing ground with high initial stress and high waterhead groundwater,treatment measures of“rock bolting+constant reaction support”and“rock grouting+lining drainage”can be used respectively.That is to say,for the large amount release(of stress or hydraulic potential)induced by excavation,only the“yielding principle”instead of the“resistance principle”is feasible to realize the harmony between tunnelling and geological body.

关 键 词：矿山法隧道工程 修建理念 主动控制 热点问题 “围岩锚固+恒阻支护” “围岩注浆+衬砌疏排” 

分 类 号：U451[建筑科学—桥梁与隧道工程]