摘要
以某桥深水双壁钢套箱围堰混凝土封底透水涌砂事故为例,介绍了事故形成的经过,提出了围堰外侧双排高压旋喷桩防渗墙和内侧混凝土封底底板下部注浆相结合的处理新技术,阐述了处理实施的工艺和要点。工程实施效果表明,可为以后同类混凝土封底的事故处理提供借鉴参考。
Based on the deep water double-wall steel boxed cofferdam of a bridge concrete permeable sand chung accident as an example,this paper introduces the accident after forming,puts forward the high pressure jet grouting pile cofferdam lateral double row cut-off and the lower part of the inside bottom grouting combined processing technology,this paper expounds the process and key points on the implementation of processing. The result of the project shows that it can provide reference for the accident treatment of similar concrete sealing in the future.
出处
《施工技术》
CAS
2018年第S1期125-127,共3页
Construction Technology
关键词
桥梁工程
双壁钢套箱围堰
混凝土封底
透水涌砂
高压旋喷桩防渗墙
注浆
bridges
double wall steel casing cofferdam
concrete back cover
permeable and Sand gushing
anti-seepage wall of high-pressure whirling piles
grouting
