黄土高边坡桩钉复合支护的离心模型试验研究
|
摘要
本文以郑州—西安客运专线观音堂隧道进口明洞段开挖的临时高边坡及其桩钉复合支护结构为研究对象,借助100gt离心机,模拟了边坡在素土、土钉支护、桩钉复合支护状态下的变形和破坏模式,定量分析边坡在不同支护方式作用下的受力变形情况及其产生的支护效果。
通过查阅大量国内外文献资料,总结了国内外有关抗滑桩、土钉支护边坡以及使用离心模型试验手段研究边坡的现状及发展,重点阐述了离心模型试验的基本原理,结合施工现场的工程概况制定相应的实验方案,并论证各种模型材料的可行性和合理性。
试验共分三组进行,每组试验都进行三次开挖。试验结束后,对每一组试验及其每一步开挖后的试验结果分别从边坡坡项沉降、坡面水平位移、坡体内部土体位移、裂缝及滑面、土钉和抗滑桩的支护效果等方面进行分析,最后根据各组边坡的变形破坏情况,比选得出最优的支护方案。
研究结果表明,对于观音堂隧道进口明洞段开挖的临时高边坡,采用桩钉复合支护的方法治理边坡是可行的,土钉和抗滑桩两种支护形式的有机结合,能够很好地发挥各自在边坡支护中的优点,最终收到比较好的支护效果。
In this thesis, temporarily excavated loess slope and support combined anti-slide pile with soil nailing of it were studied,the slope is located in open cut tunnel segment of the portal of Guanyintang tunnel in Zhengzhou-xi'an railway line for passenger transport.Using centrifuge machine of 100gt, the different modes of deformation and failure of the slope were simulated without support,with soil nailing support and with support combined anti-slide pile with soil nailing, deformation of different supporting styles under strength and supporting effect were under quantitative analysis.
Based on the domestic and foreign literature and data,the status and development of investigation about anti-slide pile support,soil nailing support of slope and the way of centrifuge model test to study slope were summarized.The fundamental theory of centrifuge model test was expatiated emphasesly. Based on general condition of construction spot, relevant project of the test was framed. The feasibility and rationality of various model materials were demonstrated.
There are three groups of test, in each group, slope has been excavated by three steps. At the final of the test, sedimentation of the slope, horizontal displacement on the face of the slope, displacement of the internal part of the slope, cracks and sliding interfaces,supporting effect of soil nailing and anti-slide pile were analyzed after each excavation in each group,all of which reflect the deformation and failure of slope directly or indirectly. Then , according to the deformation and failure of the slope, the best supporting project was chosen after compare.
According to the study, for the temporarily excavated loess slope referred in this thesis, the way of support combined anti-slide pile with soil nailing on slope treatment engineering is feasible. The combination of soil nailing supporting style and anti-slide pile supporting style can play their own strongpoint in supporting slope well, and good supporting effect can be obtained at last.
通过查阅大量国内外文献资料,总结了国内外有关抗滑桩、土钉支护边坡以及使用离心模型试验手段研究边坡的现状及发展,重点阐述了离心模型试验的基本原理,结合施工现场的工程概况制定相应的实验方案,并论证各种模型材料的可行性和合理性。
试验共分三组进行,每组试验都进行三次开挖。试验结束后,对每一组试验及其每一步开挖后的试验结果分别从边坡坡项沉降、坡面水平位移、坡体内部土体位移、裂缝及滑面、土钉和抗滑桩的支护效果等方面进行分析,最后根据各组边坡的变形破坏情况,比选得出最优的支护方案。
研究结果表明,对于观音堂隧道进口明洞段开挖的临时高边坡,采用桩钉复合支护的方法治理边坡是可行的,土钉和抗滑桩两种支护形式的有机结合,能够很好地发挥各自在边坡支护中的优点,最终收到比较好的支护效果。
In this thesis, temporarily excavated loess slope and support combined anti-slide pile with soil nailing of it were studied,the slope is located in open cut tunnel segment of the portal of Guanyintang tunnel in Zhengzhou-xi'an railway line for passenger transport.Using centrifuge machine of 100gt, the different modes of deformation and failure of the slope were simulated without support,with soil nailing support and with support combined anti-slide pile with soil nailing, deformation of different supporting styles under strength and supporting effect were under quantitative analysis.
Based on the domestic and foreign literature and data,the status and development of investigation about anti-slide pile support,soil nailing support of slope and the way of centrifuge model test to study slope were summarized.The fundamental theory of centrifuge model test was expatiated emphasesly. Based on general condition of construction spot, relevant project of the test was framed. The feasibility and rationality of various model materials were demonstrated.
There are three groups of test, in each group, slope has been excavated by three steps. At the final of the test, sedimentation of the slope, horizontal displacement on the face of the slope, displacement of the internal part of the slope, cracks and sliding interfaces,supporting effect of soil nailing and anti-slide pile were analyzed after each excavation in each group,all of which reflect the deformation and failure of slope directly or indirectly. Then , according to the deformation and failure of the slope, the best supporting project was chosen after compare.
According to the study, for the temporarily excavated loess slope referred in this thesis, the way of support combined anti-slide pile with soil nailing on slope treatment engineering is feasible. The combination of soil nailing supporting style and anti-slide pile supporting style can play their own strongpoint in supporting slope well, and good supporting effect can be obtained at last.
引文
[1]陈兴华等.脆性材料结构模型试验[M].北京:中国水利水电出版社,1983
[2]张倬元.滑坡防治工程的现状与发展展望[J].地质灾害与环境保护,2000,11(2):89-98.
[3]铁道部第二勘测设计院.抗滑桩设计与计算[M].中国铁道出版社,1983
[4]桩基工程手册编写委员会.桩基工程手册[M].中国建筑工业出版社,1995
[5]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
[6]秦四清.土钉支护机理与优化设计.地质出版社[M],1999
[7]美国交通部联邦公路总局,佘诗刚译.土钉墙设计施工与监测手册[M].北京:中国科学技术出版社,2005
[8]马平,秦四清等.深基坑桩锚支护体系主动区土压力试验研究[J].工程地质学报,2006,14(2):245-248
[9]赵杰,邵龙潭.深基坑土钉支护的有限元数值模拟及稳定性分析[J].岩土力学,2008,29(4):983-988
[10]张旭辉 锚管桩复合土钉支护稳定性研究[D]杭州:浙江大学博士学位论文,2002,5
[11]BUI Phu Doanh,罗强,张良.基于离心模型试验的高强度桩复合地基桩帽效应分析[J].岩土工程学报,2008,30(8):1158-1164
[12]刘昌清.抗滑桩离心模型试验分析.中国青年学者岩土工程力学及其应用讨论会论文集.1994,武汉
[13]张明聚,宋二祥,陈肇元.土钉挡土技术[J].中南公路工程,1998,23(1):56-60
[14]刘刚,宋宏伟,许增会,陈伟,仝洪昌,焦永军.基坑中土钉最大轴力与潜在滑动面关系研究[A].矿山建设工程新进程—2006全国矿山建设学术会论文集(下册)[C].388-394
[15]陈丛新.边坡稳定离心模型实验中离心力分布不均匀的影响[J].岩土力学,1994,15(4):39-46.
[16]朱维新.土工离心模型试验研究概况[J].岩土工程学报,1986,8(2).
[17]Bucky,P.B.The use of models for the study of mining problems[J].Am.Inst.Met.Eng.Tech.Pub,1931,425,28-30.
[18]程良奎,杨志银.喷射混凝土与土钉墙[M].中国建筑工业出版社,1998
[19]Schofield,A.N.,Dynamic and Earthquake Geotechnical Centrifuge Modeling[A],ntern.conf.on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics[C],1981
[20]李德寅,王邦楣,林压超.结构模型试验[M].科学出版社,1996.
[21]徐光明,土工二离心模型试验技术发展现状[A],第四届土工测试学术研讨会论文集[C]·南京,2004年11月,47-68.
[22]侯瑜京,动力离心模型试验设备及试验技术[A],第四届土工测试学术研讨会论文集[C]·南京,2004年11月,98-117.
[23]杜延龄.LXJ-4-450土工离心模型试验机的研制[J].水利学报,1992(2).
[24]Dou.Y.Jing.P.Development of NHRI-400g.t Geotechnical centrifuge[A],Centrifuge 94[C],Singapore,Leung,Lee &Tan(eds),69-74.
[25]胡黎明.离心模型试验技术在环境岩土工程中的应用与展望[J].土壤与环境,2001,10(4):327-330.
[26]Vucetic,M.(Univ of California),Tufenkjian.M.R.,Doroudian,M.Dynamic centrifuge testing of soil-nailed excavations.Geotechnical Testing Journal,v 16,n 2,Jun,1993,p 172-187.
[27]陈福全,马时冬.土钉加固边坡的离心模型试验与分析[J].工业建筑,1999,29(9):12-15.
[28]Mark R.Tufenkjian,Mladen Vucetic.Dynamic failure mechanism of soil-nailed excavation models in centrifuge,Journal of Geotechnical and Geoenvironmental Engineering,v 126,n 3,Mar,2000,p 227-235.
[29]徐教宇.土钉支护性状的研究[硕士学位论文][D].中国建筑科学研究院,2003.
[30]Zhang,J.(清华大学):Pu,J.:Zhang,M.:Qiu,T.Model Tests by Centrifuge of Soil Nail Reinforcements.Journal of Testing and Evaluation,v 29,n 4,July,2001,p 315-328.
[31]杨茜,张明聚,孙铁成.软弱土层复合?护试验研究[J].岩土力学,2004,25(9)
[32]高长胜,魏汝龙,陈生水.抗滑桩加固边坡离心模型试验研究[J].岩土工程学报
[33]徐挺.相似理论与模型试验[M].中国农业机械出版社,1982.
[34]袁文忠.相似理论于静力学模型试验[M].西南交通大学出版社.1998
[35]李之光.相似与模化[M].国防工业出版社,1982.
[36]徐挺.相似方法及其应用[M].机械工业出版社,1995.
[37]Fuglsang L D,Ovesen N K.The Application of the Theory of Modelling to Centrifuge Studies.Centrifuge in Soil Mechanics,1988.
[38]南京水利科学研究院土工研究所.土工试验技术手册[M].北京:人民交通出版社,2002
[39]饶锡保.土石坝的离心模型试验研究[D].长江科学院研究生论文.1989
[40]唐志成.刚性挡土墙的离心模型试验研究[D].西南交通大学硕士学位论文.1992
[41]徐光明,章为民.离心模型中的粒径效应和边界效应研究[J].岩土工程学报.1996,18(3):80-86
[42]Malushitsky YN.The Centrifuge Model Testing of Waste heap Embankments. London.Cambridge University Press,1975:5-11
[43]Santamarina JC,GoodingsDJ,Centrifuge Modeling:a Study of Similarity.Geotechnical Testing Jr,1.989,12(2):163-166
[44]Ovesen NK.The Use of Physical Model,in Design:the Scaling Law Relationships.Tth EuropeanConf.On Soil Mechanic sand Foundation Engineering.Brighton,1979,4:318-323
[45]刘坚.钢与混凝土组合结构设计原理[M].北京,科学出版社,2005,9
[46]赵世春.型钢混凝土组合结构计算原理[M].成都,西南交通大学出版社,2004
[47]杨绍林,田加才,田丽新.编混凝土配合比实用手册[M].北京,中国建筑工业出版社,2002
[48]《铁路路基支挡结构设计规范》(TB 10025—2001)
[49]《混凝土结构设计规范》(GBJ—89及其修订本)
[50]《建筑桩基技术规范》(JGJ 94—94)
[51]《铁路工程岩土分类标准》(TB10077-2001)
[2]张倬元.滑坡防治工程的现状与发展展望[J].地质灾害与环境保护,2000,11(2):89-98.
[3]铁道部第二勘测设计院.抗滑桩设计与计算[M].中国铁道出版社,1983
[4]桩基工程手册编写委员会.桩基工程手册[M].中国建筑工业出版社,1995
[5]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
[6]秦四清.土钉支护机理与优化设计.地质出版社[M],1999
[7]美国交通部联邦公路总局,佘诗刚译.土钉墙设计施工与监测手册[M].北京:中国科学技术出版社,2005
[8]马平,秦四清等.深基坑桩锚支护体系主动区土压力试验研究[J].工程地质学报,2006,14(2):245-248
[9]赵杰,邵龙潭.深基坑土钉支护的有限元数值模拟及稳定性分析[J].岩土力学,2008,29(4):983-988
[10]张旭辉 锚管桩复合土钉支护稳定性研究[D]杭州:浙江大学博士学位论文,2002,5
[11]BUI Phu Doanh,罗强,张良.基于离心模型试验的高强度桩复合地基桩帽效应分析[J].岩土工程学报,2008,30(8):1158-1164
[12]刘昌清.抗滑桩离心模型试验分析.中国青年学者岩土工程力学及其应用讨论会论文集.1994,武汉
[13]张明聚,宋二祥,陈肇元.土钉挡土技术[J].中南公路工程,1998,23(1):56-60
[14]刘刚,宋宏伟,许增会,陈伟,仝洪昌,焦永军.基坑中土钉最大轴力与潜在滑动面关系研究[A].矿山建设工程新进程—2006全国矿山建设学术会论文集(下册)[C].388-394
[15]陈丛新.边坡稳定离心模型实验中离心力分布不均匀的影响[J].岩土力学,1994,15(4):39-46.
[16]朱维新.土工离心模型试验研究概况[J].岩土工程学报,1986,8(2).
[17]Bucky,P.B.The use of models for the study of mining problems[J].Am.Inst.Met.Eng.Tech.Pub,1931,425,28-30.
[18]程良奎,杨志银.喷射混凝土与土钉墙[M].中国建筑工业出版社,1998
[19]Schofield,A.N.,Dynamic and Earthquake Geotechnical Centrifuge Modeling[A],ntern.conf.on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics[C],1981
[20]李德寅,王邦楣,林压超.结构模型试验[M].科学出版社,1996.
[21]徐光明,土工二离心模型试验技术发展现状[A],第四届土工测试学术研讨会论文集[C]·南京,2004年11月,47-68.
[22]侯瑜京,动力离心模型试验设备及试验技术[A],第四届土工测试学术研讨会论文集[C]·南京,2004年11月,98-117.
[23]杜延龄.LXJ-4-450土工离心模型试验机的研制[J].水利学报,1992(2).
[24]Dou.Y.Jing.P.Development of NHRI-400g.t Geotechnical centrifuge[A],Centrifuge 94[C],Singapore,Leung,Lee &Tan(eds),69-74.
[25]胡黎明.离心模型试验技术在环境岩土工程中的应用与展望[J].土壤与环境,2001,10(4):327-330.
[26]Vucetic,M.(Univ of California),Tufenkjian.M.R.,Doroudian,M.Dynamic centrifuge testing of soil-nailed excavations.Geotechnical Testing Journal,v 16,n 2,Jun,1993,p 172-187.
[27]陈福全,马时冬.土钉加固边坡的离心模型试验与分析[J].工业建筑,1999,29(9):12-15.
[28]Mark R.Tufenkjian,Mladen Vucetic.Dynamic failure mechanism of soil-nailed excavation models in centrifuge,Journal of Geotechnical and Geoenvironmental Engineering,v 126,n 3,Mar,2000,p 227-235.
[29]徐教宇.土钉支护性状的研究[硕士学位论文][D].中国建筑科学研究院,2003.
[30]Zhang,J.(清华大学):Pu,J.:Zhang,M.:Qiu,T.Model Tests by Centrifuge of Soil Nail Reinforcements.Journal of Testing and Evaluation,v 29,n 4,July,2001,p 315-328.
[31]杨茜,张明聚,孙铁成.软弱土层复合?护试验研究[J].岩土力学,2004,25(9)
[32]高长胜,魏汝龙,陈生水.抗滑桩加固边坡离心模型试验研究[J].岩土工程学报
[33]徐挺.相似理论与模型试验[M].中国农业机械出版社,1982.
[34]袁文忠.相似理论于静力学模型试验[M].西南交通大学出版社.1998
[35]李之光.相似与模化[M].国防工业出版社,1982.
[36]徐挺.相似方法及其应用[M].机械工业出版社,1995.
[37]Fuglsang L D,Ovesen N K.The Application of the Theory of Modelling to Centrifuge Studies.Centrifuge in Soil Mechanics,1988.
[38]南京水利科学研究院土工研究所.土工试验技术手册[M].北京:人民交通出版社,2002
[39]饶锡保.土石坝的离心模型试验研究[D].长江科学院研究生论文.1989
[40]唐志成.刚性挡土墙的离心模型试验研究[D].西南交通大学硕士学位论文.1992
[41]徐光明,章为民.离心模型中的粒径效应和边界效应研究[J].岩土工程学报.1996,18(3):80-86
[42]Malushitsky YN.The Centrifuge Model Testing of Waste heap Embankments. London.Cambridge University Press,1975:5-11
[43]Santamarina JC,GoodingsDJ,Centrifuge Modeling:a Study of Similarity.Geotechnical Testing Jr,1.989,12(2):163-166
[44]Ovesen NK.The Use of Physical Model,in Design:the Scaling Law Relationships.Tth EuropeanConf.On Soil Mechanic sand Foundation Engineering.Brighton,1979,4:318-323
[45]刘坚.钢与混凝土组合结构设计原理[M].北京,科学出版社,2005,9
[46]赵世春.型钢混凝土组合结构计算原理[M].成都,西南交通大学出版社,2004
[47]杨绍林,田加才,田丽新.编混凝土配合比实用手册[M].北京,中国建筑工业出版社,2002
[48]《铁路路基支挡结构设计规范》(TB 10025—2001)
[49]《混凝土结构设计规范》(GBJ—89及其修订本)
[50]《建筑桩基技术规范》(JGJ 94—94)
[51]《铁路工程岩土分类标准》(TB10077-2001)
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |