深圳某管廊盾构施工岩溶处置技术研究与应用  

Research and application of karst disposal technology in a tunnel shield construction in Shenzhen

作　　者：于祥涛 YU Xiangtao(China Railway 20th Bureau Group Southern Engineering Co.,Ltd.,Guangzhou 511300,Guangdong,China)

机构地区：[1]中铁二十局集团南方工程有限公司,广东广州511300

出　　处：《工程建设》2025年第2期25-30,共6页Engineering Construction

基　　金：陕西省重点研发计划资助项目(2022SF-375);陕西省自然科学基础研究计划资助项目(2022JQ-375)。

摘　　要：岩溶地层盾构施工风险较高,易出现盾构机倾覆、地表变形大等问题。文章依托深圳市16号线共建管廊碧新路绕行段盾构施工项目,在探明岩溶发育特征、规模与充填特性的基础上,选取3个具有代表性的溶洞进行试验研究,形成一套完备的岩溶处置施工工艺,并总结了岩溶处置时注浆加固异常情况的应对措施与注浆效果检测方法。对盾构掘进过程中地表变形与掘进姿态进行动态监测与分析,结果表明:所确定的岩溶处置方案合理、高效。本文成果可为管廊盾构施工岩溶处置提供技术参考。The shield construction in karst formations carries a high risk,with potential issues such as shield machine overturning and significant surface deformation.This paper is based on the shield construction project of the Bixin Road bypass section of the utility tunnel jointly built on Line 16 in Shenzhen.After investigating the developmental characteristics,scale,and filling properties of the karst,are representative karst caves are selected for experimental research.A comprehensive construction process for karst treatment is developed,and measures for handling abnormal grouting reinforcement situations during karst treatment,as well as methods for testing the effectiveness of grouting,are summarized.During the shield tunneling process,dynamic monitoring and analysis of surface deformation and tunneling posture are conducted.The results indicate that the determined karst treatment scheme is reasonable and efficient.The findings of this paper can provide technical references for karst treatment in utility tunnel shield construction.

关 键 词：管廊 盾构施工 注浆加固 岩溶 物探 

分 类 号：U455[建筑科学—桥梁与隧道工程]