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您的检索式：作者名="C.D.Martin"
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| 1 | Fracture initiation and propagation in intact rock—A review显示文摘The initiation and propagation of failure in intact rock are a matter of fundamental importance in rock engineering. At low confining pressures, tensile fracturing initiates in samples at 40%e60% of the uniaxial compressive strength and as loading continues, and these tensile fractures increase in density, ultimately coalescing and leading to strain localization and macro-scale shear failure of the samples. The Griffith theory of brittle failure provides a simplified model and a useful basis for discussion of this process. The HoekeBrown failure criterion provides an acceptable estimate of the peak strength for shear failure but a cutoff has been added for tensile conditions. However, neither of these criteria adequately explains the progressive coalition of tensile cracks and the final shearing of the specimens at higher confining stresses. Grain-based numerical models, in which the grain size distributions as well as the physical properties of the component grains of the rock are incorporated, have proved to be very useful in studying these more complex fracture processes. | E.Hoek C.D.Martin | 2014 | Journal of Rock Mechanics and Geotechnical Engineering2014，6，4： | 43 |
| 2 | 一例由蓄水诱发的库岸边坡变形显示文摘加拿大Oldman坝的库岸边坡主要由近水平、互层的砂岩及泥岩构成 ,自 1993年开始蓄水以来库岸边坡一直处于变形之中。文章在简介区域地质条件、工程地质条件和水库蓄水诱发变形的基础上 ,对变形诱发机制进行了讨论。基于监测资料分析 :(1)由于水库库岸边坡的卸荷裂隙十分发育 ,提供了快速的水力通道 ,蓄水期水对库岸边坡稳定存在不利影响 ;(2 )该例的泥岩不存在膨胀性 ;(3)库岸边坡变形是由于水的快速渗透导致有效应力降低和泥岩软化 ,库岸边坡应力重新调整引起的 ;(4 )对于软岩边坡 。 | 邓建辉 D.H.Chan C.D.Martin N.R.Morgenstern | 2002 | 中国地质灾害与防治学报2002，13，1： | 10 |
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