摘要
为实现富水砂层盾构快速施工,将双液浆首次应用于苏州富水砂层盾构施工中,结合苏州地铁5号线实际监测数据,研究浆液凝胶时间与盾构掘进速度之间的关系,选出浆液各项参数的合理范围,并提出一套切实可行的选型配比方案,实现了浆液凝胶时间100s以内的精确可控,成功解决了以往注单液浆管片上浮、沉降过大以及掘进速度慢等问题。
To realize rapid construction of shield tunneling in water-rich sandy stratum,the two-component grout is applied to the construction of shield tunneling in water-rich sandy stratum in Suzhou.Based on the monitoring data of Suzhou metro line 5,the relationship between slurry gel time and shield driving speed is studied,the rational ranges of various parameters are selected,and a set of practical and feasible selection and mixing proportioning plan of the grout is put forward,realizing precise control of grout gel time within 100 s.The problems induced by single-component grout such as segment floating,excessive settlement,and slow driving speed have been successfully avoided by two-component grout.
作者
张龙
黄明利
张恩源
ZHANG Long;HUANG Mingli;ZHANG Enyuan(Beijing Municipal Construction Co.,Ltd.,Beijing 100044,China;Department of Civil and Architectural Engineering,Beijing Jiaotong University,Beijing 100044,China)
出处
《隧道建设（中英文）》
CSCD
北大核心
2021年第S01期407-413,共7页
Tunnel Construction
基金
国家重点研发计划资助(2018YFC0808705)
关键词
盾构隧道
富水砂层
同步注浆
双液浆
掘进速度
shield tunnel
water-rich sandy stratum
synchronous grouting
two-component grout
driving speed
作者简介
第一作者:张龙(1979—),男,福建三明人,2012年毕业于华中科技大学,土木工程专业,硕士,高级工程师,主要从事隧道及地下工程领域的科学研究和工程管理等工作。E-mail:1498523441@qq.com;通信作者:张恩源,E-mail:402931706@qq.com。
