上海文化广场工程承压水控制对周边环境影响实例研究

张刚; 廖斌

上海文化广场工程承压水控制对周边环境影响实例研究 English Version

张刚¹,
廖斌^1,2

(1.现代建筑设计集团上海申元岩土工程有限公司，上海 200040；2. 同济大学地下建筑与工程系，上海 200092)

详细信息

作者简介:
张刚（1977– ），男，博士，高级工程师，主要从事基坑工程承压水控制、土体力学细观模拟和土体流固耦合方面的研究工作。

中图分类号: TU470
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出版历程
- 收稿日期: 2012-11-12
- 发布日期: 2012-11-12

Effect of controlling confined water on surrounding environment ofShanghai Cultural Plaza

ZHANG Gang¹,
LIAO Bin^1,2

(1. Shenyuan Geotechnical Engineering Co., Ltd., Shanghai Xiandai Architectural Design Group, Shanghai 200011, China; 2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China)

摘要

摘要: 以上海文化广场工程为例，结合现场抽水试验分析所得参数，采用显式有限差分法建立了基坑开挖降水的三维流–固耦合模型。首先，将计算所得基坑施工期间（开挖+降水）的位移与实测位移进行了比对验证；其次，对完全由降承压水引起的地表沉降分布进行了模拟，并与降水沉降两步预估法计算所得结果进行了比较。实例分析结果表明，该模型能较好地模拟实际开挖过程中基坑的变形规律及周边环境影响，其计算所得降承压水引起的地表沉降分布与两步预估法基本吻合，可为类似降承压水引起的环境影响研究提供一种新思路。
- 承压水降水 /
- 基坑 /
- 流–固耦合 /
- 地表沉降
Abstract: For the project of Shanghai Cultural Plaza, according to the parameters gained from in-situ tests, a 3-D fluid-solid coupling model for groundwater seepage is established based on 3-D finite difference method. First, the calculated displacement is compared with the measured one during the period of construction. Secondly, the surface subsidence caused by dewatering is simulated and compared with the measured one based on the two-step estimate method. The results of engineering example show that the 3-D fluid-solid coupling model can simulate the deformation rules and environmental effect quite well. The calculated displacement caused by dewatering is consistent with the calculated one by the two-step estimate method. It may provide a new research idea for the relevant researches on confined water.
- dewatering of confined water /
- foundation pit /
- fluid-solid coupling /
- surface settlement

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参考文献(10)

[1]	张具寿. 32 m深基坑施工中承压水的控制及对环境的影响[J]. 岩土工程学报, 2008, 30(增刊): 310–313. (ZHANG Ju-shou. Control of pressure water during construction of 32 m deep-foundation pit and its effects on surrounding environment[J]. Chinese Journal of Underground Space and Engineering, 2008, 30(S0): 310–313. (in Chinese))
[2]	叶为民, 万敏, 陈宝, 等. 深基坑承压含水层降水对地面沉降的影响[J]. 地下空间与工程学报, 2009, 5(2): 1799–1804. (YE Wei-min, WAN Min, CHEN Bao, et al. Influence of dewatering of confined aquifers on land subsidence during deep excavation[J]. Chinese Journal of Underground Space and Engineering, 2009, 5(2): 1799–1804. (in Chinese))
[3]	翁其平, 王卫东. 深基坑承压水控制的设计方法与工程应用[J]. 岩土工程学报, 2008, 30(增刊): 343–348. (WENG Qi-ping, WANG Wei-dong. Design and application of control of confined groundwater in deep foundations pits[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(S0): 343–348. (in Chinese))
[4]	周念清, 唐益群, 娄荣祥, 等. 徐家汇地铁站深基坑降水数值模拟与沉降控制[J]. 岩土工程学报, 2011, 33(12): 1950–1956. (ZHOU Nian-qing, TANG Yi-qun, LOU Rong-xiang, et al. Numerical simulation of deep foundation pit dewatering and land subsidence control of Xujiahui Metro Station[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(12): 1950–1956. (in Chinese))
[5]	宋建学, 周乃军, 邓攀. 基坑降水引起的环境变形研究[J]. 建筑科学, 2006, 22(3): 26–30. (SONG Jian-xue, ZHOU Nai-jun, DENG Pan. Environmental settlement caused by construction pit dewatering[J]. Building Science, 2006, 22(3): 26–30. (in Chinese))
[6]	严驰, 冯海涛, 李亚坡. 深基坑开挖中坑内降承压水的有限元模拟分析[J]. 西安石油大学学报(自然科学版), 2007, 22(2): 29–33. (YAN Chi, FENG Hai-tao, LI Ya-po. Gray numerical simulation of contaminant transport in low-permeability porous media[J]. Journal of Xi'an Shiyou University (Natural Science Edition), 2007, 22(2): 29–33. (in Chinese))
[7]	俞洪良, 陆杰峰, 李守德. 深基坑工程渗流场特性分析[J]. 浙江大学学报(理学版), 2002, 29(5): 595–600. (YU Hong-liang, LU Jie-feng, LI Shou-de. Study on seepage field characteristics of foundation pit excavation[J]. Zhejiang University China (Science Edition), 2002, 29(5): 595–600. (in Chinese))
[8]	张刚. 承压水降水引起地面沉降的实用预估方法研究[J]. 土木建筑工程信息技术, 2012, 4(1): 35–39. (ZHANG Gang. Study on practical prediction method of surface settlement caused by dewatering of confined water[J]. Journal of Information Technology in Civil Engineering and Architecture, 2012, 4(1): 35–39. (in Chinese))
[9]	张刚. 承压水降水引起地表沉降的预估与实测对比研究[J]. 地下空间与工程学报, 2012, 已录用. (ZHANG Gang. Study on the comparison between prediction and field measurement of surface settlement caused by dewatering of confined water[J]. Chinese Journal of Underground Space and Engineering, 2012, accepted. (in Chinese))
[10]	MOENCH A F. Convergent radial dispersion: A Laplace transform solution for aquifer tracer testing[J]. Water Resources Research, 1989, 25(3): 439–447.