科技创新与应用2025，Vol.15Issue(12)：161-164,4.DOI:10.19981/j.CN23-1581/G3.2025.12.037
超浅覆软土地层高铁大直径泥水盾构接收技术研究
摘要
Abstract
The exit section of the shield shield of the Zhanjiang Bay Subsea Tunnel Project is mainly in soft soil formation,and the soil depth at the shallowest part of the formation is only 4.6 m.In view of the construction risks brought by the ultra-shallow soil formation,pre-reinforcement measures for the ultra-shallow soil formation are proposed.The reinforcement area of the receiving section adopts deep-hole grouting,pile foundation cover plate and triaxial mixing piles full reinforcement measures.The end of the shield receiving shaft adopts comprehensive reinforcement measures of triaxial mixing piles+cement mortar ground connecting walls+high-pressure rotary grouting to improve the soil strength and strictly control the shield parameters.To ensure the construction safety of the shield during receiving,the engineering practice results show that the attitude of the shield is well controlled after receiving,and the surface settlement is within the control value range.The pre-reinforcement measures in this paper can be used for receiving the shield under similar ultra-shallow soil-covered stratum conditions.Provide reference for construction.关键词
盾构接收/超浅覆土/预加固/掘进参数/地表监测Key words
shield receiving/ultra-shallow soil covering/pre-reinforcement/excavation parameter/surface monitoring分类
交通工程引用本文复制引用
刘彦良..超浅覆软土地层高铁大直径泥水盾构接收技术研究[J].科技创新与应用,2025,15(12):161-164,4.基金项目
国家重点研发计划项目(2023TFB2603600) （2023TFB2603600）
