TBM施工隧道超前地质预报方法适宜性研究  

Study on the Suitability of Advanced Geological Prediction Methods for TBM Tunnel Construction

作　　者：付伟[1] 张文忠[1] 刘征宇[2] 赵文[1] 卢松[3] 陈兴强 王华江[1] 蔡少峰 FU Wei;ZHANG Wenzhong;LIU Zhengyu;ZHAO Wen;LU Song;CHEN Xingqiang;WANG Huajiang;CAI Shaofeng(China Railway First Survey and Design Institute Group Co.Ltd,Xi'an,Shaanxi 710043,China;Shandong University,Jinan,Shandong 250100,China;China Railway Southwest Research Institute Co.Ltd,Chengdu,Sichuan 500643,China;The General Engineering Survey Institute of Railways of Gansu Co.Ltd,Lanzhou,Gansu 730100,China)

机构地区：[1]中铁第一勘察设计院集团有限公司,西安710043 [2]山东大学,济南250100 [3]中铁西南科学研究院有限公司,成都500643 [4]甘肃铁道综合工程勘察院有限公司,兰州730100

出　　处：《铁道工程学报》2023年第10期81-85,92,共6页Journal of Railway Engineering Society

基　　金：国家自然科学基金(42102266);中铁一院科研项目(2021RJ06);中铁建B类课题(2021-B10);陕西省科技厅科技计划项目(2023-YBSF-238)。

摘　　要：研究目的:在TBM施工环境中,准确查明TBM掌子面前方不良地质体,可有效避免卡机、涌水突泥等地质问题。但是,受TBM施工极狭小空间、极复杂电磁干扰等特殊环境限制,传统超前地质预报手段难以有效实施。在大量TBM施工超前地质预报方法调研的基础之上,本文开展TBM施工环境多项预报技术的优缺点、准确率对比试验研究,建立极端复杂地质环境TBM施工综合超前地质预报体系,提出宽大断裂、强富水等复杂地质环境下超前地质预报解决方案。研究结论:(1)TBM施工条件地下水探测试验研究结果显示,激发极化探测方法对地下水体预测较为准确,并对TBM施工适宜性较好,可以有效解决复杂水文地质环境下地下水体探测问题;(2)极复杂地质环境TBM施工弹性波反射法类预报方法适宜性研究结果表明,HSP及三维地震(SAP)在TBM条件下对断层破碎带等不良地质体敏感性较强,且对隧道施工干扰较小,对TBM施工环境适宜性较好;(3)本研究成果可用于指导TBM施工隧道超前地质预报设计及施工,进一步降低施工风险。Research purposes:In the TBM construction environment,accurate identification of adverse geological bodies in the front tunnel face can effectively avoid geological problems such as machine jam,water and mud inrush.However,due to the extremely narrow space and complex electromagnetic interference of TBM construction,traditional advanced geological prediction methods are difficult to effectively implemented.Based on extensive research,this paper conducted experimental studies on the advantages,disadvantages,and accuracy of different advanced geological prediction methods for TBM construction.The research results have broken through the limitations of traditional single prediction methods and established a comprehensive advanced geological prediction system for TBM construction in extremely complex geological environments.Moreover,this study proposed solutions for advanced geological prediction in complex geological environments such as wide faults and strong water abundance.Research conclusions:(1)The experimental results of groundwater detection under TBM construction conditions show that the induced polarization detection method is more accurate in predicting groundwater bodies.Moreover,this method has good suitability for TBM construction and can effectively solve the problem of groundwater detection in complex hydrogeological environment.(2)The suitability study of elastic wave reflection prediction methods in TBM construction environment shows that HSP and 3D seismic(SAP)methods are highly sensitive to unfavorable geological bodies such as fault fracture zones in extremely complex geological environments.Moreover,these two methods have less interference with tunnel construction and are more suitable for TBM construction environment.(3)The research results of this paper can be used to guide the advance geological prediction design and construction of TBM construction tunnel,and further reduce the construction risk.

关 键 词：综合超前地质预报 地质灾害 TBM 弹性波反射法 

分 类 号：U25[交通运输工程—道路与铁道工程]