Volume 14 Issue 6
Apr.  2011
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CAO Yuxin, ZHANG Luxin, XU Lanmin, HAN Limin. 2006: MONITORING TECHNIQUES FOR CONSTRUCTION SAFETY RELIABILITY OF PERMAFROST SUBGRADE FOR QINGHAI-TIBET RAILWAY. JOURNAL OF ENGINEERING GEOLOGY, 14(6): 841-846.
Citation: CAO Yuxin, ZHANG Luxin, XU Lanmin, HAN Limin. 2006: MONITORING TECHNIQUES FOR CONSTRUCTION SAFETY RELIABILITY OF PERMAFROST SUBGRADE FOR QINGHAI-TIBET RAILWAY. JOURNAL OF ENGINEERING GEOLOGY, 14(6): 841-846.

MONITORING TECHNIQUES FOR CONSTRUCTION SAFETY RELIABILITY OF PERMAFROST SUBGRADE FOR QINGHAI-TIBET RAILWAY

  • Received Date: 2006-03-27
  • Rev Recd Date: 2006-05-08
  • Publish Date: 2006-11-22
  • In this paper,the key techniques of safety reliability monitoring in subgrade construction in permafrost are provided according to the analysis of the interaction process between subgrade construction and the permafrost.The key techniques have the techniques,motoring methods and data analysis methods.The safety reliability of permafrost subgrade construction depends on the thermal stability of the permafrost around and at the bottom of the construction and the thickness of deformed road-base fill and the beneath thawed layer. Therefore,the soil temperatures at different depths under the railway base surface and the deformation of railway base fill during the annual freezing and thawing periods are the main indexes in the long-term reliability monitoring of road-base construction in the permafrost.The extreme bed natural conditions demand that the means of monitoring must be reliable,durable and flexible.This paper discusses one set of monitoring system It has been verified with field test.Besides,the paper presents a method for analyzing monitored data for enhancing the judgment of the permafrost construction reliability.
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  • [1] 张鲁新,原思成.青藏铁路多年冻土区路基变形裂缝发生机理及其防治
    [J].第四纪研究,2003,23(6):604~610.Zhang Lux in,Y uan S icheng.M echanism and preven t ion of deform ation cracks of em bankm ents in the p erm afrost reg ion alongQ inghai-X izang R a ilw ay.Q uaternary Scien ce,2003,23(6):604~610.

    [2] 张鲁新.青藏铁路高原冻土区地温变化规律及其对路基稳定性影响
    [J].中国铁道科学,2000,21(1):37~47.Zhang Lux in.R egu larity of ground tem peratu re variation in Q ingha i-T ibet p lateau perm afrost reg ion and its effect on subgrad e stab ility.C h ina R ailw ay Science,2000,21(1):37~47.

    [3] L ing Feng,Zhang Luxin.N um erical smi u lation for the in fluence ofthe construct ion season on th em ax mium depth of seasonal thaw ing
    ben eath a pavem en t in Q inghai-T ibet p lateau C h ina
    [A].G roundFreez ing and Fros t A ct ion in Soil(Bu lusel B elgium)
    [C],1999,21~24.

    [4] Ling Feng,Zh ang Lux in.Fin ite elem en t analysis for th e therm alregmi e of a roadbed in Hu ash ixia valley along Q inghai-K angdingh ighway
    [A].G round Freezing and Frost A ct ion in S oil(Bu luselBelg ium)
    [C],1999,118~123.

    [5] 苏艺,许兆义.青藏铁路路基加宽的变形特征研究
    [J].工程地质学报,2003,11(3):288~296.Su y,i Xu Zhaoyi. S tudy on deform ation ch aracteristics of w id enedroadbed of Q inghai-T ibet raiwl ay.Jou rnal of Eng ineering G eology,2003,11(3):288~296.

    [6] 祁长青,吴青柏,施斌,徐洪钟.青藏铁路冻土路基温度场随机有限元分析
    [J].工程地质学报,2005,13(3):330~335.Q i Changq ing,et a.l.Stochas tic fin ite elem ent analys is for thetem peratu re field of frozen so il roadbed of Q inghai-T ibet raiwl ay.Jou rnal of Engin eering G eo logy,2005,13(3):330~335.

    [7] 魏静,许兆义,包黎明,葛建军.青藏铁路片石护坡路堤温度特性分析
    [J].工程地质学报,2005,13(4):494~501.W ei J ing,X u Zh aoy,i et a.l.Characterization of tem perature ofem bankm ent w ith rip rap slope p rotection along Q inghai-T ib etraiwl ay.Journ al of Eng ineering G eology,2005,13(4):494~501.

    [8] 苏艺,许兆义,王连俊.青藏铁路不同路基工程结构对路基裂缝的影响研究
    [J].工程地质学报,2004,12(3):292~297.Su Y,i et al..The in flu ence of d ifferent roadbed engineering constru ct ion on the roadb ed crack of Q inghai-T ib et raiwl ay.Journ alof Engin eering G eo logy,2004,12(3):292~297.

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