悬臂式基坑支护结构选型与整体稳定性分析

Cantilever foundation pit selection and overall stability of structure

基坑工程是一项综合性很强的系统工程。结合基坑周边环境、开挖深度、工程地质与水文地质、施工作业设备和施工季节等条件,依据主体建筑结构设计、施工要求及建筑材料性能,对不同类型悬臂式基坑支护结构进行分析比较,在实际工程中合理选择出安全、经济、科学实用的基坑支护设计方案。全面地对基坑进行整体稳定性分析,是保证基坑工程安全的重要设计环节。工程实践证明,悬臂式基坑支护结构具有施工速度快、造价低、结构质量稳定和对变形有较好的控制能力等特点。

Foundation pit engineering is a comprehensive system. Based on conditions surrounding foundation pit, excavation depth, engineering geology and hydrogeology, construction equipment and seasonal conditions, according to the main building structure design, construction requirements, and performance of materials, the author analyzed and compared different types of cantilever foundation ditch support structure, a reasonable choice is made in the ac- tual project out for security, economic, scientific plan; And comprehensive analysis of the overall stability of the foundation pit is important design aspects to ensure the safety of. the foundation pit. Practice shows that cantilever supporting structure of foundation pit has the following such features as fast speed, low cost, stable quality and have better control of deformation and so on.