结合上海打浦路隧道复线工程浦东工作井基坑开挖工程实例,详细介绍了S-2和S-3地下连续墙接缝发生漏泥险情的处理过程以及对220 kV高压电缆保护的措施,分析了坑内回填土、坑外高压旋喷桩处理以及采用坑内封钢板、注双液浆等技术措施。为应对类似工程险情的处理提供参考和借鉴。 Combined with the example of excavation of well foundation pit in Pudong work of Shanghai Dapu Road Tunnel Double Line Project, the treatment process of leakage of joints in S-2 and S-3 underground continuous wall and the measures of 220 kV high voltage cable protection are introduced in detail. The technical measures of backfill inside the pit, high pressure jet grouting pits outside the pit and the use of the inner sealed steel plate and the double grout injection were analyzed. In order to deal with similar projects to provide reference and reference.