武汉绿地中心超深超大基坑工程施工及安全控制分析

The Construction Safety Control Analysis of Super-deep and Super-large Foundation Excavation for Wuhan Greenland Center Project

结合武汉绿地中心深基坑开挖工程实例,介绍了工程支护体系、开挖方案监测点的布置、开挖过程中监测项目与所采用的监测预警值。根据工程实测结果,从支护结构内力、地下连续墙深层水平位移、地下水位及原有铁路和长江大堤变形规律等方面,分析了基坑开挖本身的安全及对周边环境的影响。最后,探讨了保证基坑开挖安全的工程措施。

The engineering support system, the arrangement of monitoring excavation scheme and the monitoring items with its warning value are introduced referring to the foundation excavation construction of Wuhan Greenland Center. Then the safety of the excavation itself and influence on surrounding environment are analyzed in terms of the brace force, deep diaphragm wall horizontal displacement, underground water level and the original railway and the Yangtze River levee deformation law and so on. And the measures for safety of foundation excavation engineering are discussed at last.