裂隙的

The results indicate that the discontinuous surface such as weak interlayer, bedding plane and joints are the major factors which control the deformation of the rock mass, the existence of weak interlayer influenced the distribution of shear displacement, stress and plastic zones, which is also a major factor result the axial forces increased rapidly during construction.

结果表明，结构面（如软弱夹层、层面和节理裂隙等）是控制图岩变形的主要因素，软弱夹层的存在控制了围岩剪位移、应力和塑性区的分布，是导致锚杆轴力增大的主要因素，实时监测资料和理论计算成果吻合良好。

The internal breaking, the stress transmission process, the quality variation with the change of the transformation structure features and the continuous expansion of the work-doing resulted from the weak stress of the pulsation action lower than the fatigue limit.

发现变形砾石内部存在特殊的微裂隙组构，呈现出错裂-横裂-劈裂-爆裂-复裂-应力矿物等的复杂组合，其结构面特征反映出显微构造形迹的力学性质是互为转变的。

A mechanical description of the REV related to the elastic modulus of jointed rockmasses is proposed, and an expression of the REV based on the central limit theorem is suggested.

本文论述了岩体力学性质的尺寸效应，提出了与岩体弹性参数相应的表征单元体REV的力学描述，根据中心极限定理推导了估算裂隙岩体REV 的数学表达式。

We think that feature of granitic geomorphologic landscape of Mt. Chaya, which had been formed by syenogranite with medium—coarse grains,mineral crystallized more coarse and equal,joint and fissure of productional are even spacing,unique geomorphologic place and the special climate condition is from north subtropical zone to warm temperate zone, are evidence that granitic geomorphologic is marked zone.

认为嵖岈山花岗岩地貌景观的特征是因嵖岈山花岗岩为中粗粒正长花岗岩，矿物颗粒结晶比较粗且岩性较均一、岩体内节理裂隙发育程度疏密适中、独特的地貌部位和北亚热带向暖温带过渡地带的气候条件形成的，是花岗岩地貌显著地带性有力见证。

To study mass exchange relation between them is of important significance to exploit low permeability methane in coal seam.

煤层气在煤层中的流动是孔隙中扩散和裂隙中渗流的综合过程，研究二者之间的质交换关系，对开发低透气性煤层的煤层气具有指导意义。

And the keytechniques are in the following:(1) The algorithm and program of intensified node arrangement near crack tip andalong crack line (2) The shape function calculation of point near crack based on visibility criteria (3) The contour integral method for calculation of stress intensify factor K_ⅠK_Ⅱ(4) The rock slope appraisal method using circular method, polygonal method orgraph theory method depending on the slope joints combination

程序实现的关键技术和算法如下：(1)沿裂隙结点布置及裂尖结点加密的算法及程序(2)采用可视准则的形函数算计算程序(3)围线积分计算复合型裂纹裂尖强度因子K_Ⅰ、K_Ⅱ的算法及程序(4)圆弧搜索法、折线搜索法和无网格—图论搜索法的算法及程序

The stability of arch dam mainly depends on the support force of downstream rockmass behind abutment of dam. If discontinuity and weak intermitted layer is existed in rockmass, abutment of arch dam will slide probably under pulling force and shear force at the both side of dam.

拱坝的抗滑稳定主要是依靠坝端下游岩体的支承，拱坝两岸山体在拱端推力和剪力的作用下，如果岩体中存在着不利于稳定的节理、裂隙或软弱夹层，便可能引起坝肩滑动。

It is shown in this research that:① The acoustic emission phenomena of rock discontinuously occur under the effect of temperature.

试验研究表明：①随着温度升高，岩石的声发射现象是间断发生的；②花岗岩存在一个开始发生热破裂的门槛值温度，其值为120 ℃左右；③试验温度范围内花岗岩热破裂的声发射现象可分为5个阶段，即岩石原生裂隙整合阶段、热破裂前声发射静默阶段、热破裂声发射阶段、大规模热破裂后声发射静默阶段、二次热破裂开始阶段。

In cases where an equivalent continuum cannot be defined, discontinuum network simulation is a viable alternative. Howerer, these models are very demanding in terms of computer resources, which restraints their application to engineering practice.

首先，提出了一种基于混合边界元—管流的改进的三维离散裂隙网络模型，并研究了提高模型计算能力的方法，使其可以具有更好的工程应用性。

The extension of crack and shear strain intensity in the across section vary with that in the vertical section.

在垂直轴向应力的横剖面上，脆性裂隙扩展的规模随纵剖面上断层的不断发展而增加，同时剪应变强度也随之不断增强。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。