[1]苏立君1,2,李彦龙1,等.土的剪胀性及灌浆压力对土钉抗拔强度影响的数值分析[J].西安建筑科技大学学报:自然科学版,2011,43(04):480-485.[doi:DOI:10.15986/j.1006-7930.2011.04.016]
 ,,et al.Numerical study of the influence of soil dilation angle andgrouting pressure on the pull-out strength of the soil na[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2011,43(04):480-485.[doi:DOI:10.15986/j.1006-7930.2011.04.016]
点击复制

土的剪胀性及灌浆压力对土钉抗拔强度影响的数值分析()
分享到:

西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
43
期数:
2011年04期
页码:
480-485
栏目:
出版日期:
2011-08-31

文章信息/Info

Title:
Numerical study of the influence of soil dilation angle and
grouting pressure on the pull-out strength of the soil na
文章编号:
1006-7930(2011)04-0480-06
作者:
苏立君1李彦龙1殷建华3
(1.西安建筑科技大学土木工程学院,陕西西安710055;2.西部建筑科技国家重点实验室(筹),陕西西安710055;
3.香港理工大学,香港九龙红磡
Author(s):
SU Li-jun1LI Yan-long1YIN Jian-hua3
(1.School of Civil Engineering,Xi′an University of Architecture & Technology,Xi′an 710055,China;
2.State Key Laboratory of Architecture Science and Technology in West China(XAUAT),Xi′an 710055China;
3.The Hong Kong Polytechnic University,Hung Hom Kowloon Hong Kong)
关键词:
土钉抗拔强度剪胀角灌浆压力有限元
Keywords:
soil nailpull-out resistancedilation anglegrouting pressurefinite elemen
分类号:
TU411
DOI:
DOI:10.15986/j.1006-7930.2011.04.016
文献标志码:
A
摘要:
土钉是一种广泛应用于边坡开挖和边坡支护的原位加筋技术.钉-土界面抗剪强度,亦即土钉抗拔强
度,是土钉支护结构设计中要用到的一个重要参数.对于钻孔灌注型土钉来说,土的剪胀性和土钉灌浆压力的
大小是影响抗拔强度的重要因素.本文在室内土钉抗拔试验的基础上,建立了三维有限元模型研究这两个参
数对土钉抗拔强度的影响.进行参数研究前首先用实测数据对模型进行了验证,模拟结果与实测数据吻合很
好.数值分析结果表明,峰值抗拔应力随着剪胀角和灌浆压力的增加而显著增大
Abstract:
Soil nailing is an in situ reinforcing technique that is widely used for stabilizing slopes and excavations.The nailsoil
 interface shear strength,that is,the pull-out strength of a soil nail is an important parameter which controls the design
 of a soil nailing structure.For drill-and-grout soil nails,the dilatancy of soil and grouting pressure are two important
parameters which influence the pull-out strength.Based on the laboratory pull-out tests,a 3-D finite element model was
established to investigate the influence of these two parameters on the pull-out strength of a soil nail.Before the parametric
 study was carried out,the model was firstly validated by comparing measured and simulated results.The agreement
between the measured and simulated results was fairly good.The parametric study showed that the peak pull-out stress
increased significantly with the increase in grouting pressure and dilation angle of the soil.

参考文献/References:

 References
[1] 陈肇元,崔京浩.土钉支护在基坑工程中的应用[M].北京:中国建筑工业出版社,2000.
CHEN Zao-yuan,CUI Jing-hao.Application of soil nailing in foundation excavation supporting[M].Beijing:China
Architecture &Building Press,2000.
[2] MILLIGAN G W E ,TEI K.The pull-out resistance of model soil nails[J].Journal of Soils and Foundations,
1998,38(2):179-190.
[3] 贾金青,张明聚.深基坑土钉支护现场测试分析研究[J].岩土力学,2003,24(3):413-416.
JIA Jin-qing,ZHANG Ming-ju.Research on field test of soil nailing for deep excavation[J].Rock and Soil Mechanics,
2003,24(3):413-416.
[4] 丁振明,秦四清,刘 军,等.土钉支护体系抗拔力机理研究[J].岩土力学,2005,26(11):1799-1802.
DING Zhen-ming,QIN Si-qing,LIU Jun,et al.Research on anti-pulling mechanism in soil-nailing supporting system
[J].Rock and Soil Mechanics,2005,26(11):1799-1802.
[5] YIN J H,SU L J.An innovative laboratory box for testing nail pull-out resistance in soil[J].ASTM Geotechnical
Testing Journal,Nov.2006,29(6):1-11.
[6] SU L J,TERENCE C F,CHAN Y K,et al.Influence of Degree of Saturation on Soil Nail Pull-out Resistance in
Compacted Completely Decomposed Granite Fill[J].Canadian Geotechnical Journal,2007,44(11):1314-1328.
[7] BENHAMIDA B,UNTERREINER P,SCHLOSSER F.Numerical analysis of a full scale experimental soil nailed
wall[C]//On Ground Improvement Geosystems.Lodon:Proc.3rd Int.Conf.1997,452-458.
[8] CHEUK C Y,NG C W W,SUN H W.Numerical experiments of soil nails in loose fill slopes subjected to rainfall
infiltration effects[J].Computers and Geotechnics,2005,32(4):290-303.
[9] OCHIAI T,HATTORI K,POKHAREL G.Numerical modeling of an in-situ pull-out test on soil reinforcing bars
[C].Rotterdam:Numerical models in Geomechanics,1997,263-268.
[10] 陈宗平,薛建阳,赵鸿铁.型钢混凝土异形柱的受剪机理及承载力影响因素分析[J].西安建筑科技大学学报:自然
科学版,2008,40(4):450-456.
CHEN Zong-ping,XUE Jian-yang,ZHAO Hong-tie.Analysis on the mechanism and shearing capacity influence
factors of steel reinforced concrete special-shaped column[J].J.Xi′an Univ.of Arch.& Tech.:Natural Science
Edition,2008,40(4):450-456.

相似文献/References:

[1]苏立君,张宜健,殷建华,等.钻孔灌注型土钉抗拔性能的室内模型试验研究[J].西安建筑科技大学学报:自然科学版,2011,43(03):342.[doi:DOI :10.15986/j .1006-7930.2011.03.017]
 SU Li-jun,Z HANGY i-j ian,Y IN J ian-hua,et al.Lab physical modeling investigation on the pull-out resistance of grouted soil nail[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2011,43(04):342.[doi:DOI :10.15986/j .1006-7930.2011.03.017]

备注/Memo

备注/Memo:
*收稿日期:2010-10-19  修改稿日期:2011-06-25
基金项目:西安建筑科技大学基础研究基金资助项目(JC0702);校人才研究基金资助项目(RC0709)
作者简介:苏立君(1976-),男,辽宁清原人,博士,副教授,主要研究方向为岩土的本构关系及土工试验技术.
更新日期/Last Update: 2015-11-05