双护盾TBM空推段管片质量控制技术研究  

The quality control technique of segments of double shield TBM pushing through the mine

作　　者：王青波 李渊 张飞 陈寿根[2] Wang Qingbo;Li Yuan;Zhang Fei;Chen Shougen(Zhongjiao 2nd Engineering Bureau No.3 Engineering Co.,Ltd.,Xi’an 710000,China;Southwest Jiaotong University Key Laboratory of Communications Tunnel Engineering,Chengdu 610031,China)

机构地区：[1]中交二局第三工程有限公司,陕西西安710000 [2]西南交通大学交通隧道工程教育部重点实验室,四川成都610031

出　　处：《山西建筑》2021年第10期135-137,154,共4页Shanxi Architecture

摘　　要：依托深圳市轨道交通8号线工程,对空推成洞段前100环管片验收,结合工艺特点和影响因素进行分析,得出了以下结论:初支侵限对隧道轴线偏差影响极大;回填灌浆是保证管片质量的关键;管片拼装是控制渗漏水的必要条件;空推不均匀受力是管片破损的主要因素。Based on the Shenzhen Metro Line 8 project,according to the acceptance inspection results of one hundred segments of liner of front part of the tunneling section of pushing through the mine,and taking account of the influence factors and technology characteristics,the following conclusions are drawn,the under-break of excavation of the initial support has a great influence on the axis deviation of the tunnel,backfilling grouting in time is the key to ensure the quality of the segments,the assembly of segment is a necessary condition for controlling the leakage of it,the non-uniform force is the main factor of the broken segments.

关 键 词：双护盾TBM 空推工艺 质量缺陷 治理措施 

分 类 号：U455[建筑科学—桥梁与隧道工程]