富水卵石层冻结法施工联络通道突发涌水应急处置及分析  

Emergency response and analysis of sudden water gushing during freezing construction of cross passageway in water-rich gravel layer

作　　者：冯利华[1] 任全军[1] 刘欣 沈宇鹏[2] 黄月馨 Feng Lihua;Ren Quanjun;Liu Xin;Shen Yupeng;Huang Yuexin(2nd Engineering Co.,Ltd.,China Railway First Bureau Group,Tangshan 063000,China;School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]中铁一局集团第二工程有限公司,河北唐山063000 [2]北京交通大学土木建筑工程学院,北京100044

出　　处：《工程勘察》2025年第1期7-12,共6页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金资助项目(42172291);北京市自然科学基金资助项目(8212014).

摘　　要：人工地层冻结技术已成为地铁联络通道施工的核心工法之一,其具有封水性好、环境影响小、可控性强、适用范围广等优点。地下水高速渗流引起冻结壁交圈时间延后,平均温度和有效厚度不及预期,进而造成涌水、涌砂事故,严重制约冻结工程的顺利推进。本文主要介绍了北京地铁某联络通道冻结施工过程中突发的涌水过程及处置措施,分析了险情发生的原因,采用纵向测温法查明了冻结壁的“开窗”位置,总结了抢险成功的经验,以期为在联络通道冻结施工过程中发生类似涌水事故的处置方法提供参考。Artificial ground freezing technique has become one of the core construction methods for subway cross passages due to its advantages of good sealing performance,small environmental impact,strong controllability and wide applicability.The closure time of freezing wall may be delayed,and the average temperature and effective thickness may not be as expected because of high-speed groundwater flow.It will cause water and sand gushing accidents,seriously restricting the smooth progress of the freezing project.The sudden water gushing process and disposal measures during the freezing construction of a cross passage of Beijing Metro are introduced.The reason for the dangerous situation is analyzed,the weak area of the freezing wall is identified through longitudinal temperature measurement method,and the successful rescue experience is summarized,in order to provide the reference for the handling of similar water gushing accidents during the freezing construction of the cross passage.

关 键 词：人工地层冻结 联络通道 冻结壁 渗流 突发涌水 

分 类 号：TU46[建筑科学—结构工程] U231.3[建筑科学—土工工程]