浏览全部资源
扫码关注微信
纸质出版日期:2012,
网络出版日期:2012-3-7,
扫 描 看 全 文
张社荣,孙博,王超.影响盾构隧道地表沉降的多因素分析[J].工程科学与技术,2012,44(4):6-11.
Multivariate Analysis on the Ground Settlement of Shield Tunneling[J]. Advanced Engineering Sciences, 2012,44(4):6-11.
中文摘要: 软土中盾构施工安全一直是工程界关注的重点问题,其研究涉及水-土-结构相互作用以及由于加固引起的土体属性变化等诸多方面。基于渗流-应力耦合理论,在ABAQUS平台上通过二次开发实现盾构开挖过程中土体渗透特性的演化和注浆材料弹性模量及渗透系数的时变性,研究不同埋深、不同地下水位、不同土体特性对盾构隧道地表沉降的影响。研究结果表明:在软土地区,盾构开挖过程中注浆材料弹性模量和渗透系数的时变性对地表沉降影响较大,而土体渗透系数随应变的演化对地表沉降影响不大;隧道埋深、地下水及土体特性均影响开挖对地表的扰动,且土体弹性模量相对影响最大。
Abstract:The shield construction safety in soft soil is always an important issue in engineering field. Based on the seepage-stress coupling theory
the evolution of soil permeability
the time-dependent stiffness and permeability of the grout material were modeled through second development on the platform of ABAQUS. The influence of cover depth
ground water level and soil properties on the ground settlement was investigated numerically. The results showed that the influence of time-dependent stiffness and permeability of grout material on ground settlement is more obvious than that of strain-dependent permeability of soil. Cover depth
ground water level and soil properties have an impact on ground settlement
and the influence of elastic modulus of soil is the greatest among them.
盾构隧道软土渗透特性演化时变性埋深地下水位土体特性渗流-应力耦合
shield tunnelingsoft soilthe evolution of permeabilitytime-dependentcover depthground water levelsoil propertiesseepage-stress coupling
张云,殷宗泽,徐永福..盾构法隧道引起的地表变形分析[J].岩石力学与工程学报,2002,(03):388-392.doi:10.3321/j.issn:1000-6915.2002.03.019.
张海波,地铁盾构法施工对周围环境影响的数值模拟,南京:河海大学,2005.
刘元雪,施建勇,许江..盾构法隧道施工数值模拟[J].岩土工程学报,2004,(02):239-243.doi:10.3321/j.issn:1000-4548.2004.02.017.
姜忻良,崔奕,李园..天津地铁盾构施工地层变形实测及动态模拟[J].岩土力学,2005,(10):1612-1616.doi:10.3969/j.issn.1000-7598.2005.10.017.
吉小明,王宇会..隧道开挖问题的水力耦合计算分析[J].地下空间与工程学报,2005,(06):848-852.doi:10.3969/j.issn.1673-0836.2005.06.009.
吴波,刘维宁,索晓明,隧道降水施工地表沉降的渗流一应力耦合分析,岩石力学与工程学报,2006(增1).
Kasper T,Meschke G,A 3D finite element simulation model for TBM tunneling in soft ground,International Journal for Numerical and Analytical Methods in Geomechanics,2004.
Kasper T,Meschke G,A numerical study of the effect of soil and grout material properties and cover depth in shield tun- neling,Computers and Geotechnics,2006.
原华,张庆贺,胡向东,大:直径越江盾构隧道各向异性渗流应力耦合分析,岩石力学与工程学报,2008(10).
叶源新,刘光廷..岩石渗流应力耦合特性研究[J].岩石力学与工程学报,2005,(14):2518-2525.doi:10.3321/j.issn:1000-6915.2005.14.018.
谢康和,周健,岩土工程有限元分析理论与应用,北京:科学出版社,2002.
Meschke G,Consideration o:F aging of shotcrete in the con- text of a 3D viscoplastic material model,International Journal for Numerical Methods in Engineering,1996.
Meschke G,Kropik C,Marg H A,Numerical analyses of tunnel linings by means of a viscoplastic material model for shotcrete,International Jcurnal for Numerical Methods in Engineering,1996.
0
浏览量
2
下载量
21
CNKI被引量
关联资源
相关文章
相关作者
相关机构