地震作用下断层带隧道震害机理与稳定性控制  

Research on failure mechanism and stability control of tunnels across large fault fracture zone

作　　者：殷允腾 吕海波 马飞飞 王洪涛 于海容 Yin Yunteng;Lv Haibo;Ma Feifei;Wang Hongtao;Yu Hairong(Jinan Urban Construction Group Co.,Ltd.,Jinan Shandong 250031,China;Shandong Harbour Engineering Group Co.,Ltd.,Rizhao Shandong 276800,China;Shandong Water Conservancy Vocational College,Rizhao Shandong 276826,China;School of Civil Engineering,Shandong Jianzhu University,Jinan Shandong 250102,China;College of Resources,Shandong University of Science and Technology,Taian Shandong 271019,China)

机构地区：[1]济南城建集团有限公司,山东济南250031 [2]山东港湾建设集团有限公司,山东日照276800 [3]山东水利职业学院,山东日照276826 [4]山东建筑大学土木工程学院,山东济南250102 [5]山东科技大学资源学院,山东泰安271019

出　　处：《山西建筑》2025年第9期124-129,共6页Shanxi Architecture

基　　金：国家自然科学基金项目(项目编号:51704177);中国博士后科学基金资助项目(项目编号:2022M711314);山东省自然科学基金(项目编号:ZR2022ME088)。

摘　　要：为了探究地震作用下穿越断层破碎带隧道结构破坏机理和稳定性控制的有效方式。分析了汶川地震加速度曲线,探究隧道结构破坏原因,基于FLAC3D介绍了某海底隧道在考虑断层破碎带影响下隧道结构的破坏机理及抗震措施。研究表明:导致断层破碎带处隧道衬砌破坏的主要原因是隧道结构刚度和质量密度与围岩的差异、断层错动、断层破碎带宽度较大以及地震惯性力。要预防断层破碎带处发生隧道破坏,最有效的方法就是维持围岩的稳定性,调整隧道结构的质量密度和刚度,使其与围岩一致,同时增设缓冲层,改善隧道衬砌的受力状况。本研究成果对高烈度区隧道结构的设计与施工具有一定的参考价值。It is an effective way to explore the failure mechanism and stability control of tunnel structure through fault fracture zone under earthquake action.By analyzing the acceleration curve of Wenchuan earthquake,the failure reason of tunnel structure is analyzed.Based on FLAC3D,the failure mechanism and seismic measures of tunnel structure under the influence of fault fracture zone are studied.The research shows that the difference between the stiffness and mass density of the tunnel structure and the surrounding rock,the fault dislocation,the large width of the fault fracture zone and the seismic inertia force are the main reasons for the failure of the tunnel lining at the fault fracture zone.In order to prevent tunnel failure in the fault fracture zone,the most effective method is to maintain the stability of the surrounding rock,adjust the mass density and stiffness of the tunnel structure,and make it consistent with the surrounding rock.The buffer layer is added to improve the stress condition of the tunnel lining.The research results have certain reference value for the design and construction of tunnel structure in high intensity area.

关 键 词：断层破碎带 隧道结构 震害机理 稳定性控制 FLAC3D 

分 类 号：TU997[建筑科学—市政工程] U451[建筑科学—桥梁与隧道工程]