劲性搅拌桩芯桩荷载传递规律理论研究

›› 2011, Vol. 32 ›› Issue (8): 2473-2478.

劲性搅拌桩芯桩荷载传递规律理论研究

顾士坦¹，施建勇²，王春秋¹，谭云亮¹

1.山东科技大学矿山灾害预防控制教育部重点实验室，山东青岛 266510； 2.河海大学岩土力学与堤坝工程教育部重点实验室，南京 210098

收稿日期:2010-07-09 出版日期:2011-08-10 发布日期:2011-08-16
作者简介:顾士坦，男，1978年生，博士，讲师，主要从事岩土及地下工程研究
基金资助:
青岛市国际科技合作计划项目（No. 09-1-3-177-hz）；青岛市科技计划基础研究项目（No. 09-1-3-7-jch）；山东科技大学“春蕾计划”项目（No. 2009AZZ176）。

Theoretical study of core pile load transfer regularity of reinforced mixing pile

GU Shi-tan¹, SHI Jian-yong², WANG Chun-qiu¹, TAN Yun-liang¹

1. Key Laboratory of Ministry of Education for Mine Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao, Shandong 266510, China; 2. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China

Received:2010-07-09 Online:2011-08-10 Published:2011-08-16

摘要/Abstract

摘要： 劲性搅拌桩是一种典型的复合材料桩，基于复合材料力学原理及明德林位移解，对劲性搅拌桩中芯桩轴向应力、水泥土桩-芯桩界面剪应力进行理论分析，得到了劲性搅拌桩芯桩轴向应力、界面剪应力的分布规律，并与现场试验结果进行对比分析，结果表明：该理论分析结果与现场试验结果规律是一致的，可与试验结果互为验证，对于分析劲性搅拌桩的工作机制具有一定的理论价值。

关键词: 劲性搅拌桩, 明德林位移解, 芯桩轴向应力, 界面剪应力

Abstract: Reinforced mixing pile is a typical composite material pile; theoretical analysis of core pile axial stress and cement soil pile-core pile interface shear stress of reinforced mixing pile are carried out based on composite material mechanics and Mindlin displacement solution. Regularities of distribution of core pile axial stress and interface shear stress are deduced; theoretical results are compared with field test results. The comparison results show that theoretical analysis results are accordant with field test results and they can be verified each other. Theoretical study has significant value for analysis of performance mechanism of reinforced mixing pile.

Key words: reinforced mixing pile, Mindlin displacement solution, core pile axial stress, interface shear stress

中图分类号:

TU 472

顾士坦，施建勇，王春秋，谭云亮. 劲性搅拌桩芯桩荷载传递规律理论研究[J]. , 2011, 32(8): 2473-2478.

GU Shi-tan , SHI Jian-yong , WANG Chun-qiu , TAN Yun-liang. Theoretical study of core pile load transfer regularity of reinforced mixing pile[J]. , 2011, 32(8): 2473-2478.

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