2011年12月下 施工技术 第40卷第355期 CONSTRUCTION TECHNOLOGY 43 软土基坑主动区土压力与位移关系实测研究 聂宗泉,汪清河,周奇1,孟少平2,张尚根3 (1.中铁四局集团,安徽合肥230023:2.东南大学土木工程学院,江苏南京210096: 3.解放军理工大学工程兵工程学院,江苏南京210007) [摘要]在对上海地铁M8线延吉中路站基坑主动区土压力和地下连续墙水平位移实测资料分析处理的基础上,就 主动区土压力强度和连续墙水平位移之间关系进行深入研究.分析结果表明,土压力和位移之间关系与双曲线具 有很好的相关性,土体水平基床系数沿深度增加,但超过一定深度后增加趋缓. [关键词]地下工程;软土地区;深基坑;土压力;位移;双曲线模型 [中图分类号]TU431 [文献标识码]A[文章编号]1002-8498(2011)24-0043-04 Monitoring and Research on Relationship Between Earth Pressure in Active Area and Displacement of Foundation Excavation in Soft Soil Nie Zongquan' Wang Qinghe' Zhou Qi' Meng Shaoping? Zhang Shanggen' (1.No.4 Chinese Railweay Bureau Group Co.Ltd.Hefei Anhui 230023 China;2.College of Civil Engineering Southeast University Nanjing Jiangsu 210096 China;3.College of Engineering Corps PLA University of Science and Technology Nanjing Jiangsu 210007 China) Abstract:Based on the monitoring earth pressure and displacement of diaphragm wall of deep foundation excavation of Yanji Street Station of Shanghai Metro line M8 the relationship between earth pressure in active area and displacement of diaphragm wall is studied in detail.The results show that the relationship between the earth pressure and the displacement of diaphragm wall may be expressed by hyperbolic model.The horizontal foundation coefficient of soil is increased with depth and the trend slows at some point. Key words:underground;soft soil area;deep foundation excavation;earth pressure;displacement; hyperbolic model 大量基坑工程实测2表明:土压力与支护结站,呈南北...
软土基坑主动区土压力与位移关系实测研究.pdf
