摘要
本文以重庆市南坪中心交通枢纽工程为依托,分析了该深基坑支护工程在开挖、板肋式锚杆挡墙支护过程中出现的险情情况,研究实施了反压土体和竖向钢花管灌浆固结技术的应急处理方案,并提出了钢花管灌浆固结技术在施工中的技术特点和难点。通过现场监测数据分析,证明该方案对深基坑支护工程的险情处理是有效的。该方案可为类似工程提供借鉴和参考。
Combining with the transportation hub project at the center of Nanping District in Chongqing, this article analyzed the dangerous conditions during excavating and ribbed plate anchored retaining wall supporting. The emergency treatment programs of anti-pressure soil and vertical steel tube flower consolidation grouting technology were carried into execution. And the technical features and difficulties of the steel flower tube consolidation grouting method in construction were presented. Site monitoring data showed that the emergency treatment programs of anti-pressure soil and vertical steel tube flower consolidation grouting technology were effective. These programs could be used for reference for similar projects.
出处
《重庆建筑》
2009年第10期23-26,共4页
Chongqing Architecture
关键词
深基坑支护
钢花管注浆
反压土体
应急处理方案
deep foundation supporting engineering
steel tube flower consolidation grouting technology
anti-pressure soil
emergency treatment program
