- 摘 要
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(1 河南城建學院，平頂山 467044； 2 河南建筑職業(yè)技術(shù)學院，鄭州 450007；3 河南工業(yè)大學土木工程學院，鄭州 450052)
［摘要］利用顆粒流理論及PFC-2D程序，模擬靜壓樁的打入過程，分析了打入過程中土體顆粒的結(jié)構(gòu)排列、樁周土體的位移和應力的變化，并繪出應力場和位移場的等值線圖，根據(jù)應力-位移場將土體的運動分成三個區(qū)域。
［關(guān)鍵詞］靜壓樁；位移場；應力場；顆粒流；數(shù)值模擬
Numerical simulation of particle flow code for stress-displacement field to jacked pile down in sand soil
Ma Zhe1, Wu Chengxia2, Xiao Zhaoran3(1 Henan University of Urban Construction, Pingdingshan 467044, China； 2 Henan Technology College of Construction, Zhengzhou 450007, China; 3 Department of Civil Engineering, Henan University of Technology, Zhengzhou 450052, China)
Abstract:PFC-2D(Particle Flow Code in 2 Dimensions) is used to simulate jacked pile in the driving process. Structural arrangement of soil particle,the distribution of displacement and stress of soil around pile are analyzed primarily. The isoline of displacement field is drawn, the movement of soil is divided into three regions from the view of analysis of displacement field.
Keywords:jacked pile; displacement field; stress field; particle flow code; numerical simulation
作者簡介：馬哲，副教授，Email:mzmk@hncj.edu.cn。
參考文獻
［1］周健，池永. 砂土力學性質(zhì)的細觀模擬［J］.巖土力學, 2003, 24(6):901-906.
［2］周健，池毓蔚，池永，等.砂土雙軸試驗的顆粒流模擬［J］.巖土工程學報, 2000, 22(6):701-704.
［3］廖雄華，等.粘性土室內(nèi)平面應變試驗的顆粒流模擬［J］.水利學報，2002(12)：11-17.
［4］劉文白，周健. 上拔荷載作用下樁的顆粒流數(shù)值模擬［J］.巖土工程學報,2004, 26(4):516-52.
