【作者】 曾纪全；

【Author】 Zeng Jiquan Chengdu Hydroelectric Investigation and Design Institute of SPC, Chengdu 610072 China

【机构】 国家电力公司成都勘测设计研究院；

【摘要】 通过对泥质粉砂岩、泥质灰岩抗剪强度参数的层面倾角效应研究,以及石膏模型试件力学性质的结构面倾角效应研究,就结构面倾角对层状、似层状岩体抗剪强度参数产生的影响进行了较详细的剖析,阐明了层状、似层状结构岩体力学性质各向异性的本质和机理,并在此基础上对受倾角效应影响的层状、似层状岩体抗剪强度参数取值进行了较深入的分析,提出了较为客观的、极具参考价值的层状、似层状结构岩体抗剪强度参数的取值原则。其中,层状结构粉砂岩、泥质粉砂岩、泥质砂岩系列强度参数与结构面倾角α的相关式为:f’=0.94+0.01α和c’=2.18+0.02α;薄层——层状结构灰岩、片岩、板岩系列强度参数与结构面倾角α的相关式为:f=7.3642e^0.0146α和c=0.896+0.0034α。层状、似层状结构石膏模拟试件不同裂隙倾角条件下的室内三轴剪切试验研究进一步表明,以上关系式可作为类似结构岩体抗剪强度参数在不同层面倾角下的取值参考。更多还原

【Abstract】 Through tilt angle effect research of plane of shearing strength parameter ofargillaceoussiltdtone and argillaceous limestone, and structural plane’s tilt angle effect research of mechanics propertyof gypsum sample, take aparted of clear detailed with the influence of structural plane’s tilt angle toparameter of shearing strength of rock mass of stratiform and stratoid structure, enunciated essence andmechanism of anisotropy of rock mass mechanics property of stratiform and stratoid structure. Andhereon base proceed clear in-depth analyzed to pitch upon subject parameter of shearing strength of rockmass of stratiform and stratoid structure, bring forward clear imperconal and have reference worth pitchupon principle parameter of shearing strength of rock mass of stratiform and stratoid structur. In it,Sandwich silt crag, Mire character silt crag, Mire character sandstone set intensity parameter togetherwith composition dip αThe correlation style is: f’=0.94+0.01αAnd c’=2.18+0.02α; Slightstraturm--Sandwich grey crag, Schist, Slate set intensity parameter together with composition dip αThecorrelation style is: f=7.3642e0.0146αAnd c=0.896+0.0034α. Straturm shape, That the anxiouseperiment researcies making known is further cut that in three of the interior that as if sandwich plaster issimulated below the distinct crevice dip terms of test item, Foregoing relationship style may the geingvalue reference that as analogous the composition crag part of the body shearing strength parameter isliving below the distinct plane dips.更多还原