南昌市某建筑项目深基坑支护设计方案的选型分析

Selection analysis of a deep foundation pit support design scheme in Nanchang City

通过勘察某建筑项目基坑周边环境、地质条件等,确定基坑的安全等级。预选两种基坑支护设计方案,采用同济启明星深基坑支挡结构设计计算软件FRWS 9.0进行安全性计算,并根据两种支护方案分别所需工程材料预估工程费用,从适用性、安全性、经济性、施工周期等因素综合分析,为该项目选定结构稳定、造价相对较低、工期相对较短的基坑支护设计方案,可为类似工程基坑支护方案选型提供经验。

The safety level of the foundation pit was determined by surveying the surrounding environment,geological conditions,etc.The paper preselected two design schemes for foundation pit support,and used the Tongji Qimingxing Deep Foundation Pit Support Structure Design Calculation Software FRWS 9.0 for calculation.The engineering costs of the two support schemes was evaluated based on the required engineering materials.Based on a comprehensive analysis of factors such as applicability,safety,economy,and construction period,a foundation pit support design scheme with stable foundation pit support structure,relatively low cost,and relatively short construction period was selected for this project.This case study can provide experience for the selection of foundation pit support schemes in similar projects.