一种风亭基坑支撑系统优化方法及实践

Optimization method and practice of ventilating kiosk foundation pit support system

介绍一种地铁风亭基坑内支撑系统优化方案。地铁基坑深度大,周围环境复杂,地面车流量大。此地铁风亭基坑所处在软土、粉砂地层中,地下水位较高,基坑安全风险大,在保证基坑及周围环境安全条件下,通过优化第2道支撑材料、位置、竖向间距及横向间距,既可缩短工期,又节约经济开支,使工程能够顺利完成。

This paper introduces an optimization scheme of subway ventilating kiosk foundation pit internal support system.The depth of subway foundation pit is large,the surrounding environment is complex,and the ground traffic flow is large.The foundation pit of the subway ventilating kiosk is located in soft soil and silty sand stratum.The groundwater level is high,and the safety risk of the foundation pit is large.Under the condition of ensuring the safety of the foundation pit and the surrounding environment,by optimizing the second supporting material,position,vertical spacing and horizontal spacing,the construction period is improved,and the economic expenditure is saved,so that the project can be successfully completed.