复合土钉墙在基坑支护工程中的应用

The Application of Composite Soil Nail Wall in Foundation Pit Support Engineering

大型商业综合体基坑工程需要采取有效的支护措施,复合式土钉墙以其优点得到了越多越广泛的应用。为了研究其在基坑边坡支护中的应用,文章依托淄博火车站南广场片区商业综合体项目,阐述针对地质条件、工程环境及基坑开挖情况等多因素制订的基坑支护设计方案,细致解析各单元的复合土钉墙支护原理,运用理正深基坑软件对11个边坡单元进行稳定性验算。结果表明,采用复合式土钉墙支护技术,边坡11个单元的整体滑动稳定性系数均大于1.3,满足设计要求。该技术的应用可以保证基坑开挖的安全性,在基坑支护工程中有一定的优越性。

Effective support measures are required for large-scale commercial complex foundation pit engineering,and composite soil nail wall has been widely used due to its advantages.In order to study its application in foundation pit slope support,based on the commercial complex project in the south square area of Zibo Railway Station,this paper expounds the design scheme of foundation pit support based on many factors such as geological conditions,engineering environment and foundation pit excavation,analyzes the support principle of composite soil nail wall for each unit in detail,and uses Lizheng deep foundation pit software to check the stability of 11 units of the slope.The results show that the overall sliding stability coefficient of the 11 units of the slope is greater than 1.3 by using the composite soil nail wall support technology,which meets the design requirements.The application of this technology can ensure the safety of foundation pit excavation and has certain advantages in foundation pit support engineering.