基于土拱效应的悬臂式抗滑桩桩间挡板土压力计算

刘力生; 吴曙光

doi:10.11779/CJGE2015S2030

基于土拱效应的悬臂式抗滑桩桩间挡板土压力计算 English Version

刘力生^{1, 2},
吴曙光^1,2,

1. 山地城镇建设与新技术教育部重点实验室(重庆大学),重庆 400045; 2. 重庆大学土木工程学院, 重庆 400045;

基金项目: 中央高校基本科研业务费项目（106112015CDJXY200006）; 国家“十二五”科技支撑计划项目（2012BAJ22806-04）

详细信息

作者简介:
刘力生(1990- ),男,重庆大足人,硕士研究生,主要从事边坡支挡结构研究。

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出版历程
- 收稿日期: 2015-03-25
- 发布日期: 2015-07-24

Calculation of earth pressure on baffle of cantilever anti-slide piles based on soil arching effects

LIU Li-sheng^{1, 2},
WU Shu-guang^1,2,

1.Key Laboratory of New Technology for Construction of Cities in Mountain Area (Chongqing University), Ministry of Education, Chongqing 400045, China; 2. School of Civil Engineering, Chongqing University, Chongqing 400045, China;

摘要

摘要: 土拱效应在抗滑桩发挥其支护功能中起到重要作用,通过对悬臂式抗滑桩桩后土拱的合理拱轴线的假定,建立土体平衡方程计算了土拱的极限高度;同时通过建立微分方程对挡板的土压力进行了计算;并将计算结果与重庆市地方标准的公式及主动土压力公式进行比较,得出的土压力的值的大小位于重庆市地方规范与主动土压力之间,并与模型试验的结果相验证,得到了比较吻合的结果。研究可为西南地区的抗滑桩桩间挡板的设计提供依据。
- 土拱 /
- 抗滑桩 /
- 挡板 /
- 土压力
Abstract: The soil arching effect plays an important role in cantilever anti-slide piles. By assuming the reasonable arching axis behind the anti-slide piles, a soil equilibrium equation is established to get the maximum height of the soil arching. Then an differential equation is deduced to calculate the earth pressure on baffle of the cantilever anti-slide piles. The results are compared with those by the formula of local regulations in Chongqing and Coublomb's earth pressure. They are checked using the model tests and good agreement is achieved. The results may provide a basis for the design of baffle of cantilever anti-slide piles in Southwest China.
- soil arching /
- anti-slide pile /
- baffle /
- earth pressure

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参考文献(14)

[1]	TERZAGHI K. Stress distribution in dry and in saturated sand above a yielding trap-door[C]// Proceedings of 1st Conference of Soil Mechanics and Foundation Engineering. Boston, 1936: 307-316.
[2]	代军, 胡岱文, 吴曙光. 桩锚支挡结构体系挡板土压力试验研究[J]. 重庆建筑大学学报, 2001, 23(4): 48-54. (DAI Jun, HU Dai-wen, WU Shu-guang. Experimental study of soil stress on the holding sheet of pile-anchor holding-block structure system[J]. Journal of Chonqing Jianzhu University, 2001, 23(4): 48-54.(in Chinese)
[3]	HANDY R L. The arch in soil arching[J]. Journal of Geotechnical Engineering, 1985, 111(3): 302-318.
[4]	SHUBHRA G, PATRA N R. Effect of arching on active earth pressure for rigid retaining walls considering translation mode[J]. Int J Geomech, 2008(2): 123-133.
[5]	PAIK K H, SALGADO R. Estimation of active earth pressure against rigid retaining walls considering arching effect[J]. Géotechnique, 2003, 53(7): 643-645.
[6]	刘孝平, 周义武, 钟圣斌. 关于空腹式无铰拱桥的合理拱轴线问题[J]. 湖南大学学报, 1983, 10(4): 48-55. (LIU Xiao-ping, ZHOU Yi-wu, ZHONG Sheng-bin. On the rational curve for the axis of spandrel arches[J]. Journal of Hunan University, 1983, 10(4): 48-55.(in Chinese)
[7]	魏业清, 张林洪. 考虑土拱效应的桩板墙挡板设计[J].科学技术与工程, 2008, 8(21): 5964-5967. (WEI Ye-qing, ZHANG Lin-hong. Design of sheet-pile wall breast boards on arching effect[J]. Science Technology and Engineering, 2008, 8(21): 5964-5967. (in Chinese))
[8]	王杰. 考虑土拱效应的挡墙土压力研究[D]. 杭州: 浙江大学, 2014. (WANG Jie. Study of earth pressure on retaining walls on the basis of soil arching effect[D]. Hangzhou: Zhejiang University, 2014. (in Chinese))
[9]	叶晓明. 柱板结构挡土墙板上的土压力计算方法[J]. 地下空间, 1999, 19(2): 142-146. (YE Xiao-ming. The calculation method of retaining wall plate in column-slab structure[J]. Junderground, 1999, 19(2): 142-146. (in Chinese))
[10]	杨明辉, 汪罗成, 赵明华. 考虑土拱效应的双排抗滑桩桩侧土压力计算[J].公路交通科技, 2011, 28(10): 12-39. (YANG Ming-hui, WANG Luo-cheng, ZHAO Minghua. Calculation of soil pressure against double-row anti-slide piles considering soil arching effect[J]. Journal of Highway and Transportation Research and Development, 2011, 28(10): 12-39. (in Chinese))
[11]	吴明, 彭建兵, 徐平, 等. 考虑土拱效应的挡墙后土压力研究[J].工程力学, 2011, 28(11): 89-95. (WU Ming, PENG Jian-bing, XU Ping, et al. Study on earth pressure against rigid retaining walls considering soil arching effects[J]. Engineering Mechanics, 2011, 28(11): 89-95. (in Chinese))
[12]	DB50/5029—2004地质灾害防治工程设计规范[S]. 2004. (DB50/5029—2004 Code for design of geological disaster prevention project[S]. 2004. (in Chinese))
[13]	叶代成. 抗滑桩桩间土拱效应及合理桩间距的研究[J]. 土工基础, 2008, 22(4): 75-79. (YE Dai-cheng. The reseach of the soil arching effective between anti-sliding piles and suitable pile spacing[J]. Soil Eng. and Foundation, 2008, 22(4): 75-79. (in Chinese))
[14]	张永兴, 董捷, 黄治云. 合理间距条件悬臂式抗滑桩三维土拱效应试验研究[J]. 岩土工程学报, 2009, 31(12): 76-83. (ZHANG Yong-xing, DONG Jie, HUANG Zhi-yun. Experimental investigation on three-dimensional soil arching effect between adjacent cantilever anti-slide piles with rational spacing[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(12): 76-83. (in Chinese))