膨润土泥浆改良砂卵石土的试验研究
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- 英文论文题名：Study on the Improvement of Sandy Gravel Property in Bentonite Slurry
- 论文作者：董金玉 ; 王闯 ; 周建军 ; 郑珠光 ; 李严威 ; 杨继红
- 英文论文作者：DONG Jinyu ; WANG Chuang ; ZHOU Jianjun ; ZHENG Zhuguang ; LI Yanwei ; YANG Jihong ; College of Resources and Environment ; North China Institute of Water Conservancy and Hydroelectric Power ; State Key Laboratory of Shield Machine and Boring Technology
- 年：2016
- 作者机构：华北水利水电大学资源与环境学院;盾构及掘进技术国家重点实验室;
- 论文关键词：砂卵石 ; 膨润土泥浆 ; 注入率 ; 抗剪强度 ; 流动性 ; 渗透性
- 英文论文关键词：Sand cobble ; Bentonite slurry ; Injection rate ; Shear strength ; Fluidity ; Permeability
- 会议召开时间：2016-10-24
- 会议录名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会论文集
- 语种：中文
- 分类号：U455.43
- 学会代码：OGTY
- 会议名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会
- 会议地点：中国四川成都
- 主办单位：中国土木工程学会隧道及地下工程分会
- 学会名称：中国土木工程学会
- 页数：9
- 文件大小：3429k
- 原文格式：O
- 会议级别：全国
摘要
砂卵石土具有内摩擦角大、流动性差、渗透系数大等特点,在砂卵石地层的盾构施工中会引起出土困难、刀盘磨损、地下水喷涌等问题。基于膨润土泥浆优化试验,发现相同土水质量比的钠基膨润土泥浆黏度优于钙基膨润土,钠基膨润土泥浆的最优土水质量比为1:10,最优膨化时间为18 h。通过不同钠基膨润土泥浆注入率下不同含石量砂卵石土的室内大型剪切试验、坍落度试验和渗透试验,发现了不同含石量砂卵石土的抗剪强度、内摩擦角、流动性和渗透性随泥浆注入率增大的非线性变化规律,得到了满足盾构施工中"理想状态土体"要求的泥浆注入率。研究成果对砂卵石地层盾构掘进中的相关问题解决具有一定的意义。
As we know,sandy pebble soil has the characteristics of large internal friction angle,poor fluidity and high permeability coefficient,therefore,a series of problems,such as unearthed difficulty,wear of cutter and ground water spewing,can be encountered in the construction of shield tunnel in sandy pebble stratum.Based on the experiment of bentonite slurry optimization,it is concluded that the relative volume quality and viscosity of sodium bentonite was better than that of calcium bentonite.Additionally,the optimal proportion between bentonite and water is 1:10,and the best time of mud bulking is 18 hours.Through the lab large-scale shear test,slump test and permeability test,sand pebble soil with different sodium bentonite injection rate has been researched,it is founded that the shear strength,internal friction angle,fluidity and permeability of sand pebbles can be nonlinear variation with the increase of mud injection rate.Finally,the mud injection rate is obtained in the condition of "ideal state soil" in the shield construction.The result can be of great importance in solving of the problems encountered in the construction of shield in sand pebble stratum.
As we know,sandy pebble soil has the characteristics of large internal friction angle,poor fluidity and high permeability coefficient,therefore,a series of problems,such as unearthed difficulty,wear of cutter and ground water spewing,can be encountered in the construction of shield tunnel in sandy pebble stratum.Based on the experiment of bentonite slurry optimization,it is concluded that the relative volume quality and viscosity of sodium bentonite was better than that of calcium bentonite.Additionally,the optimal proportion between bentonite and water is 1:10,and the best time of mud bulking is 18 hours.Through the lab large-scale shear test,slump test and permeability test,sand pebble soil with different sodium bentonite injection rate has been researched,it is founded that the shear strength,internal friction angle,fluidity and permeability of sand pebbles can be nonlinear variation with the increase of mud injection rate.Finally,the mud injection rate is obtained in the condition of "ideal state soil" in the shield construction.The result can be of great importance in solving of the problems encountered in the construction of shield in sand pebble stratum.
引文
[1]王明胜.复杂地层中盾构法隧道渣土改良技术[J].地下空间与工程学报,2007,3(8):1445-1447.WANG Mingsheng.Muck conditioning technology in complex ground for tunnel by shield tunneling method[J].Journal of Underground Space and Engineering,2007,3(8):1445-1447.
[2]黄德中.超大直径土压平衡盾构施工土体改良试验研究[J].现代隧道技术,2011,48(4):65-71.HUANG Dezhong.Research of soil improvement during super large diameter earth pressure balance shield[J].Modern Tunneling Technology,2011,48(4):65-71.
[3]肖超,王树英,叶新宇,等.泥质粉砂岩地层土压平衡盾构碴土改良技术研究[J].现代隧道技术,2015,52(5):165-170.XIAO Chao,WANG Shuying,YE Xinyu,et al.Study on soil conditioning technology for an EPB shield in an argillaceous siltstone formation[J].Modern Tunneling Technology,2015,52(5):165-170.
[4]姜厚停,龚秋明,周永攀,等.北京地铁盾构施工遇到的工程地质问题[J].工程地质学报,2010,18(增1):126-132.JIANG Houting,GONG Qiuming,ZHOU Yongpan,et al.Encountered engineering geological problems of shield tunneling during Beijing subway construction[J].Journal of Engineering Geology,2010,18(S1):126-132.
[5]丛恩伟.北京地铁10号线砂卵石地层盾构法隧道施工关键技术[J].铁路标准设计,2009,12(12):168-170.CONG Enwei.Key studies for EPB shield in sandy cobble layer in Beijing Subway Line 10[J].Railway Standard Design,2009,12(12):168-170.
[6]宋克志,汪波,孔恒,等.无水砂卵石地层土压平衡盾构施工泡沫技术研究[J].岩石力学与工程学报,2005,24(13):2327-2332.SONG Kezhi,WANG Bo,KONG Heng,et al.Study on foam technology during shield excavation in sandy cobble bed without water[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(13):2327-2332.
[7]姜厚停,龚秋明,杜修力.卵石地层土压平衡盾构施工土体改良试验研究[J].岩土工程学报,2013,35(2):284-292.JIANG Houting,GONG Qiuming,DU Xiuli.Experimental study on soil conditioning in cobble layer by use of earth pressure balanced machine[J].Chinese Journal of Geotechnical Engineering,2013,35(2):284-292.
[8]姜厚停,龚秋明,闫鑫.土压平衡盾构施工中泡沫改良圆砾地层试验研究[J].现代隧道技术,2008(增刊):187-190.JIANG Houting,GONG Qiuming,YAN Xin.Use of chemical foam for earth pressure balanced shields excavation in gravel layer[J].Modern Tunneling Technology,2008(S0):187-190.
[9]郭彩霞,孔恒,王梦恕.无水大粒径漂卵砾石地层土压平衡盾构施工渣土改良分析[J].土木工程学报,2015,48(增1):201-205.GUO Cai-xia,KONG Heng,WANG Meng-shu.Study on muck improvement of EPB shield tunneling in waterless sandy-cobbleboulder stratum[J].China Civil Engineering Journal,2015,48(S1):201-205.
[10]乔国刚,陶龙光,刘波,等.泡沫改良富水砂层工程性质的实验研究[J].现代隧道技术,2009,46(6):79-84.QIAO Guogang,TAO Longguang,LIU Bo,et al.Study on engineering properties of foam-conditioned water-soaked sand strata[J].Modern Tunneling Technology,2009,46(6):79-84.
[11]汪国锋.北京地铁十号线土压平衡盾构土体改良技术应用研究[J].现代隧道技术,2009,46(4):74-82.WANG Guofeng.Soil improvement technologies and implementation for EPB shield in Beijing subway[J].Modern Tunnelling Technology,2009,46(4):74-82.
[12]魏康林.土压平衡盾构施工中“理想状态土体”的探讨[J].城市轨道交通研究,2007,10(1):67-70.WEI Kanglin.On the"Ideal soil"in the earth pressure balanced shield tunneling[J].Urban Mass Transit,2007,10(1):67-70.
[13]魏康林.土压平衡式盾构施工中喷涌问题的发生机理及其防治措施研究[D].南京:河海大学,2003.WEI Kanglin.Earth pressure balance type shield tunnel beneath the happening of the problems in the mechanism and its prevention and control measures[D].Nanjing:Hohai University,2003.
[14]张明晶.土压平衡式盾构施工闭塞问题的发生机理与防治措施研究[D].南京:河海大学,2004.ZHANG Mingjing.Study on the Mechanism and Curing Method of Blocking in EPBS[D].Nanjing:Hohai University,2004.
[15]Sotiris Psomas.Properties of foam/sand mixtures for tunneling applications.A thesis submitted for the degree of master,.St Hugh's College,2001.
[16]赵东杰.新型土压平衡盾构施工用泥浆研究[D].北京:中国地质大学,2012.ZHAO Dongjie.Research of a new soil improvement for earth pressure balance shield[D].Beijing:China University of Geosciences,2012.
[17]代仁平,宫全美.土压平衡盾构砂卵石处理模式及应用分析[J].土木工程学报,2010,43(S2):292-298.DAI Renping,GONG Quanmei.Processing model and application of sand and gravel of earth pressure balance shield[J].China Civil Engineering Journal,2010,43(S2):292-298.
[2]黄德中.超大直径土压平衡盾构施工土体改良试验研究[J].现代隧道技术,2011,48(4):65-71.HUANG Dezhong.Research of soil improvement during super large diameter earth pressure balance shield[J].Modern Tunneling Technology,2011,48(4):65-71.
[3]肖超,王树英,叶新宇,等.泥质粉砂岩地层土压平衡盾构碴土改良技术研究[J].现代隧道技术,2015,52(5):165-170.XIAO Chao,WANG Shuying,YE Xinyu,et al.Study on soil conditioning technology for an EPB shield in an argillaceous siltstone formation[J].Modern Tunneling Technology,2015,52(5):165-170.
[4]姜厚停,龚秋明,周永攀,等.北京地铁盾构施工遇到的工程地质问题[J].工程地质学报,2010,18(增1):126-132.JIANG Houting,GONG Qiuming,ZHOU Yongpan,et al.Encountered engineering geological problems of shield tunneling during Beijing subway construction[J].Journal of Engineering Geology,2010,18(S1):126-132.
[5]丛恩伟.北京地铁10号线砂卵石地层盾构法隧道施工关键技术[J].铁路标准设计,2009,12(12):168-170.CONG Enwei.Key studies for EPB shield in sandy cobble layer in Beijing Subway Line 10[J].Railway Standard Design,2009,12(12):168-170.
[6]宋克志,汪波,孔恒,等.无水砂卵石地层土压平衡盾构施工泡沫技术研究[J].岩石力学与工程学报,2005,24(13):2327-2332.SONG Kezhi,WANG Bo,KONG Heng,et al.Study on foam technology during shield excavation in sandy cobble bed without water[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(13):2327-2332.
[7]姜厚停,龚秋明,杜修力.卵石地层土压平衡盾构施工土体改良试验研究[J].岩土工程学报,2013,35(2):284-292.JIANG Houting,GONG Qiuming,DU Xiuli.Experimental study on soil conditioning in cobble layer by use of earth pressure balanced machine[J].Chinese Journal of Geotechnical Engineering,2013,35(2):284-292.
[8]姜厚停,龚秋明,闫鑫.土压平衡盾构施工中泡沫改良圆砾地层试验研究[J].现代隧道技术,2008(增刊):187-190.JIANG Houting,GONG Qiuming,YAN Xin.Use of chemical foam for earth pressure balanced shields excavation in gravel layer[J].Modern Tunneling Technology,2008(S0):187-190.
[9]郭彩霞,孔恒,王梦恕.无水大粒径漂卵砾石地层土压平衡盾构施工渣土改良分析[J].土木工程学报,2015,48(增1):201-205.GUO Cai-xia,KONG Heng,WANG Meng-shu.Study on muck improvement of EPB shield tunneling in waterless sandy-cobbleboulder stratum[J].China Civil Engineering Journal,2015,48(S1):201-205.
[10]乔国刚,陶龙光,刘波,等.泡沫改良富水砂层工程性质的实验研究[J].现代隧道技术,2009,46(6):79-84.QIAO Guogang,TAO Longguang,LIU Bo,et al.Study on engineering properties of foam-conditioned water-soaked sand strata[J].Modern Tunneling Technology,2009,46(6):79-84.
[11]汪国锋.北京地铁十号线土压平衡盾构土体改良技术应用研究[J].现代隧道技术,2009,46(4):74-82.WANG Guofeng.Soil improvement technologies and implementation for EPB shield in Beijing subway[J].Modern Tunnelling Technology,2009,46(4):74-82.
[12]魏康林.土压平衡盾构施工中“理想状态土体”的探讨[J].城市轨道交通研究,2007,10(1):67-70.WEI Kanglin.On the"Ideal soil"in the earth pressure balanced shield tunneling[J].Urban Mass Transit,2007,10(1):67-70.
[13]魏康林.土压平衡式盾构施工中喷涌问题的发生机理及其防治措施研究[D].南京:河海大学,2003.WEI Kanglin.Earth pressure balance type shield tunnel beneath the happening of the problems in the mechanism and its prevention and control measures[D].Nanjing:Hohai University,2003.
[14]张明晶.土压平衡式盾构施工闭塞问题的发生机理与防治措施研究[D].南京:河海大学,2004.ZHANG Mingjing.Study on the Mechanism and Curing Method of Blocking in EPBS[D].Nanjing:Hohai University,2004.
[15]Sotiris Psomas.Properties of foam/sand mixtures for tunneling applications.A thesis submitted for the degree of master,.St Hugh's College,2001.
[16]赵东杰.新型土压平衡盾构施工用泥浆研究[D].北京:中国地质大学,2012.ZHAO Dongjie.Research of a new soil improvement for earth pressure balance shield[D].Beijing:China University of Geosciences,2012.
[17]代仁平,宫全美.土压平衡盾构砂卵石处理模式及应用分析[J].土木工程学报,2010,43(S2):292-298.DAI Renping,GONG Quanmei.Processing model and application of sand and gravel of earth pressure balance shield[J].China Civil Engineering Journal,2010,43(S2):292-298.