隧道施工中特大型溶洞处治技术研究  

Research on Treatment Technology of Extra-large Karst Caves in Tunnel Construction

作　　者：张全峰 王松青 徐颖[2] 杨明 汪海波[2] 杨谢生 张艺 ZHANG Quanfeng;WANG Songqing;XU Ying;YANG Ming;WANG Haibo;YANG Xiesheng;ZHANG Yi(Urban Traffic Construction Branch, Chinese Coal Third Construction (Group) Co., Ltd, Hefei Anhui 230000, China;School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan Anhui 232001, China)

机构地区：[1]中煤第三建设(集团)有限责任公司城市交通建设分公司,安徽合肥230000 [2]安徽理工大学土木建筑学院,安徽淮南232001

出　　处：《安徽理工大学学报（自然科学版）》2020年第1期27-32,共6页Journal of Anhui University of Science and Technology:Natural Science

基　　金：国家自然科学基金资助项目(51274009);安徽省博士后基金资助项目(2018B282)。

摘　　要：为解决矿山法地铁隧道穿越区域特大型溶洞处治问题,基于武汉地铁27号线矿山法隧道特大型溶洞发育情况,分析了该特大型溶洞特点及处治难点,进而提出了采用“地面注浆和洞内大管棚、小导管超前支护,以及工作面超前注浆加固和加密钢格栅支护”的综合处治方案,并给出了相应的施工参数。现场监测结果及开挖表明,该溶洞处治效果良好,保证了地铁隧道施工安全,对于类似工程具有重要的借鉴意义。In order to solve the problem of treating super-large karst cave which passes through areas by mining metro tunnel,based on development of the super-large karst cave of mining tunnel of Wuhan metro line 27,its characteristics and treating difficulties were analyzed to propose a combination scheme of surface grouting and supporting in advance by large pipe shed and small pipe in tunnel,and reinforcing of advanced grouting in working face and supporting by encrypt steel grid;moreover,the corresponding conducting parameters were provided The field monitoring and excavation results show that by using these technologies good effect had been achieved in ensuring the security of metro tunnel construction,which is of great significance for reference in the similar project.

关 键 词：武汉地铁 矿山法隧道 特大型溶洞 处治技术 

分 类 号：U455.41[建筑科学—桥梁与隧道工程]