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.
钱明. 双排混凝土灌注桩基坑支护的数值模拟分析[J]. 岩土工程学报, 2014, 36(zk2): 136-139.
QIAN Ming. Numerical simulation of double-row bored concrete piles in foundation pits. Chinese J. Geot. Eng., 2014, 36(zk2): 136-139.
[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))
