|
|||||
|
|
Controlling subsidence caused by de-watering in a deep foundation pit |
|
| Authors: | Jianxiu Wang Bo Feng Yan Liu Lingao Wu Yanfei Zhu Xingsheng Zhang Yiqun Tang Ping Yang |
| Affiliation: | 1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai, 200092, China 2. Department of Geotechnical Engineering, Tongji University, No.1239, Siping Road, Shanghai, 200092, China 3. Shanghai Tunnel Engineering Corporation Ltd, Shanghai, 200082, China |
| Abstract: | In China, more and more underground structures are being built close to buildings of architectural merit. When installing deep foundations, three ways of controlling seepage are suggested. In Mode III, an installed curtain extends partly into the confined aquifer so that the hydraulic connection between the excavated section and the water in the host material is partly isolated. The combined effects of pumping, curtain efficiency and recharge are discussed. Based on the engineering geological conditions of the deep foundation pit of the Yishan Road Station of Metro Line 9, Shanghai, China, in situ pumping and recharge tests were carried out. The combined effects are similar to the results obtained using a three-dimensional finite difference method (FDM) numerical simulation. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |