珠三角地区富水砂层深基坑施工涌水涌砂安全风险控制  

Safety Risk Control of Water and Sand Gushing during Construction of Deep Foundation Pit in Water-rich Sand Layer of the Pearl River Delta Region

作　　者：王芳泓 WANG Fanghong(The First Engineering Company of CREGC,Guiyang 550000,China)

机构地区：[1]中铁二局第一工程有限公司,贵阳550000

出　　处：《路基工程》2024年第1期198-205,共8页Subgrade Engineering

摘　　要：针对珠三角地区水文地质条件复杂且有富水砂层的各类深基坑施工易发涌水涌砂现象,结合现场处置过程中遇到的实际问题,进行风险分析,总结提出涌水涌砂预防管理要点和处置措施。应加强全过程施工质量管控,防止突涌水发生;另一方面应做好充足的预防、准备、响应等应急管理工作,确保突涌发生后可成功地进行现场处置。In the view of the situation that the hydrogeological conditions in the Pearl River Delta region are complex and the construction of various deep foundation pits are prone to water and sand gushing,combined with the practical problems encountered in the field disposal,the risk analysis is carried out,the key points of prevention and managment of water and sand gushing and the disposal measures are summarized and put forward.The quality control of the whole construction process should be strengthened to prevent water gushing.On the other hand,adequate prevention,preparation,response and other emergency managment work should be done to ensure successful on-site disposal after the surge occurs.

关 键 词：珠三角地区 富水砂层 深基坑 围护结构 涌水涌砂 险情处置 

分 类 号：TU943.1[建筑科学—建筑技术科学]