顺层双层岩质边坡屈曲性态研究
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摘要
视顺层双层岩质边坡为叠梁结构,以其地质背景及力学作用机制为依据,分析了双层岩质边坡变形破坏机理,抽象出岩梁结构简化分析模型。利用梁板屈曲理论,探讨了叠梁的屈曲性态和分叉特性,建立了岩层结构的灾变判据。分析表明,对于顺层双层岩质边坡,这种计算模型和判据更接近实际情况,为边坡稳定性分析提供了一种理论依据。
The bedding slope with bilayer seams is considered as the bilayer superposed beam.According to the geological background and mechanical mechanism,the deformation and failure mechanism of the slope with bilayer seams is analyzed and the simplified model of rock beam structure is extracted.On the basis of bucking theory of rock beam and board,the catastrophic criterions of the structural deformation and failure of rock mass are established by studying the buckling behavior and bifurcating properties of the superposed rock beam.
引文
[1]李云鹏,杨治林,王芝银,等.顺层边坡岩体结构稳定性位移理论[J].岩石力学与工程学报,2000,19(6):747-750.LI Yun-peng,YANG Zhi-lin,WANG Zhi-yin,et al.Displacement theory of structure stability for rock mass bedding slope[J].Chinese Journal of Rock Mechanics and Engineering,2000,19(6):747-750.
    [2]孙广忠.工程地质与地质工程[M].北京:地震出版社,1993.
    [3]胡广韬.滑坡动力学[M].北京:地质出版社,1995.
    [4]WANG Z,YANG Z F,LI Y P.Research on displacement criterion of structural deforamation and failure for beddong rockslope[J].Scienia Geologica Sinica,1998,7(2):217-223.
    [5]谈至明.具有弹性地基上双层叠合梁的解[J].应用力学学报,1997,11(8):88-90.TAN Zhi-ming.Solution to bilayer beams with elastic interlayer on winkler foundation[J].Chinese Journal of Applied Me-chanics,1997,11(8):88-90.
    [6]S.铁摩辛柯.材料力学[M].北京:科学出版社,1995.
    [7]叶晓明,孟凡涛,许年春.土层水平卸荷拱的形成条件[J].岩石力学与工程学报,2002,21(5):745-748.YE Xiao-ming,MENG Fan-tao,XU Nian-chun.Formation condition of horizontal unloading arch in soil layer[J].ChineseJournal of Rock Mechanics and Engineering,2002,21(5):745-748.
    [8]DAS B M.Principles of foundation engineering[M].Monterey,Calif.:Brook/Cole Engineering Division,1984.

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