Numerical simulation of double-row bored concrete piles in foundation pits
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摘要: 近年来,随着计算机技术及岩土工程数值计算理论的发展,数值模拟分析在岩土工程中的应用越来越多。该文结合青岛某深基坑实例,利用岩土工程有限元软件PLAXIS,模拟双排桩基坑支护的全过程,分析了水平位移的变化趋势,并与实测数据进行了对比分析。同时对单排桩支护方案进行了比较分析,证明了双排桩支护在限制水平位移的明显优势。由此认为数值模拟工作能对基坑支护方案比选工作和基坑稳定性分析提供有效的帮助。Abstract: In recent years, with the development of computer technology and numerical theory of geotechnical engineering, numerical simulation analysis is more and more applied in geotechnical engineering. Based on a deep foundation pit in Qingdao, the geotechnical finite element soft PLAXIS is used to simulate the whole process of double-row piles. The change trend of horizontal displacement is analyzed and compared with the measured data. At the same time the single-row pile supporting method is compared and analyzed, the double-row piles are proved to have obvious advantages in restricting the horizontal displacement. Therefore, the numerical simulation may provide effective help for selection of supporting methods and stability analysis of foundation pits.
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Keywords:
- double-row pile /
- finite element /
- horizontal displacement /
- PLAXIS
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[1] GB 50007—2011 建筑基坑支护设计规范[S]. 2011. (GB 50007—2011 Design specification on supporting of foundation pit[S]. 2011. (in Chinese)) [2] 北京金土木软件技术公司. PLAXIS岩土工程软件使用指南[M]. 北京: 人民交通出版社, 2010. (Beijing Civil King Software Technology Company. PLAXIS geotechnical engineering software user's guide[M]. Beijing: China Communications Press, 2010. (in Chinese)) [3] 王殿斌, 吕三和. 青岛市深基坑工程实践[M]. 北京: 中国建筑工业出版社, 2011. (WANG Dian-bin, LÜ San-he. The practice of deep foundation pit engineering in Qingdao city[M]. Beijing: China Architecture and Building Press, 2011. (in Chinese)) [4] GB50021—2001 岩土工程勘察规范[S]. 2001. (GB50021—2001 Code for investigation of geotechnical engineering[S]. 2001. (in Chinese)) [5] 王卫东, 王建华. 深基坑支护结构与主体结构相结合的设计、分析与实例[M]. 北京: 中国建筑工业出版社, 2007. (WANG Wei-dong, WANG Jian-hua. Design, analysis and case histories of deep excavations supported by permanent structures[M]. Beijing: China Architecture and Building Press, 2007. (in Chinese)) [6] GB 50007—2011建筑地基基础设计规范[S]. 2011. (GB 50007—2011 Code for design of building foundation[S]. 2011. (in Chinese)) [7] 张建勋, 陈福全, 简洪钰. 被动桩中土拱效应问题的数值分析[J]. 岩土力学, 2004, 25(2): 174-178. (ZHANG Jian-xun, CHEN Fu-quan, JIAN Hong-yu. Numerical analysis of soil arching effects in passive piles[J]. Rock and Soil Mechanics, 2004, 25(2): 174-178. (in Chinese))
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