张弦梁钢支撑系统在深圳滨海大道(总部基地段)交通综合改造工程中的应用

Application of Steel Supporting System with Tensioned String Beam Structure in Shenzhen Binhai Avenue(Headquarters Base Section)Traffc Comprehensive Transformation Project

地下工程施工中,基坑开挖与支护结构是一个系统工程,涉及到工程地质、水文地质、工程结构、建筑材料、施工工艺等诸多方面。深圳滨海大道(总部基地段)交通综合改造工程基坑面积大、开挖深度深、开挖距离长,临近深圳湾海域,周边在建基坑多,环境风险高,工程施工环保要求高,工期紧张。结合工程实际,介绍了装配式张弦梁钢支撑系统,对施工工序与系统特点进行了分析。

In underground engineering construction,excavation and retaining structures are systematic,involving engineering geology,hydrogeology,engineering structure,building materials,construction technology and many other aspects.In Shenzhen Binhai Avenue(headquarters base section)traffic comprehensive transformation project,the excavation pit features with large excavation area,deep excavation depth,and long excavation distance.The excavation is close to Shenzhen Bay where there are many excavation projects under construction.The excavation is with high environmental risk,high environmental protection requirements,and a tight schedule.Combined with the actual project,the prefabricated steel supporting system with tensioned string beam structure is introduced,and the construction process and system characteristics are analyzed.