(1 上海岩土工程勘察设计研究院有限公司  200002；2 上海应用技术学院  200235)
【提要】  在对挡墙坑内加固体受力分析的基础上，探讨了对加固作用产生影响的主要因素，研究了加固体对基坑变形的空间作用。提出了在上海地区，加固体宽度和高度在4m左右，间距控制在10～15m比较适宜。最后通过工程实例进行了验证。
【关键词】  坑内加固  挡墙变形  影响因素
Influences of Reinforcement in Foundation Pit with Retaining Wall on Foundation Pit Deformation/Jian Hao１，Qi Liangfeng2(1 Shanghai Geotechnical Investigations & Design Institute,Shanghai 200002,China;2 Department of Civil Engineering,Shanghai Institute of Technology,Shanghai 200235,China)
Abstract:On the basis of mechanical analysis of the reinforcement in foundation pit,the main effect factors of the reinforcement are discussed,and the space effect of the reinforcement on the deformation of foundation pit is studied.The analysis results show that it is feasible that the width and height of reinforcement are about 4m,and the distance between the reinforcements is 10m and 15m.At last,the result is verified by a the practical engineering.
Keywords:reinforcement;foundation pit;deformation of retaining wall;influence factor