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Volume 34 Issue 6
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GONG Jian-fei, SHI Jin-long, ZHU Hong-bo, ZHOU Sheng-bin. In-situ tests on settlement of large-area thick raft foundation under tall buildings[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(6): 1088-1093.
Citation: GONG Jian-fei, SHI Jin-long, ZHU Hong-bo, ZHOU Sheng-bin. In-situ tests on settlement of large-area thick raft foundation under tall buildings[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(6): 1088-1093.
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In-situ tests on settlement of large-area thick raft foundation under tall buildings

  • 1. China Academy of Building Research, Beijing 100013, China; 2. State Key Laboratory of Building Safety and Built Environment , Beijing 100013, China

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  • Published Date: June 19, 2012
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  • The results of in-situ tests show that the stress state and deformation characteristics of a tall building with large-area raft foundation are closely related to the foundation of the first span podium. The building has the ability to adjust different ground stress states caused by different structural rigidities and loads between the tall building and podiums. For the conventional projects, the calculated depth of subsoil compressible stratum under large-area thick raft foundation under the tall building is about 1.2 times the width of its foundation. The deformation control conditions of large-area thick raft foundation can take the following limits: the overall largest flexure limit under tall buildings is no more than 0.5‰, and the maximum settlement difference limit between the tall building and the first span podium connecting with the tall building does not exceed 0.001 l, and the maximum settlement difference limit among the annexs other columns does not exceed 0.002 l.
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    • References (4)
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    宫剑飞 , 黄熙龄 , 滕延京 , 等 . 整体大面积筏板基础地基变形原位测试分析及变形控制设计 [R]. 北京 : 中国建筑科学研究院 , 2010. ( GONG Jian-fei, HUANG Xi-ling, TENG Yan-jing, et al. In-situ testing analysis of deformation and design according to deformation for large-area thick raft foundation under tall buildings[R]. Beijing: China Academy of Building Research, 2010. (in Chinese))
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