层节理

玄武岩的原生建造、构造作用和风化卸荷，对岩体结构和工程性状有较大的影响。成岩中形成的层面构造和层节理是层间错动和层内错动产生的基础。

The rock mass texture and engineering property are obviously influenced by the primary formation , tectonism , weathering and unloading of basalt .

拱坝&地基系统稳定分析中对坝肩破坏的研究至关重要，而目前广泛采用的有限元法不能够有效地模拟岩石基础中断层、节理等薄弱面的不连续特性。

Study of abutment failure is important in stability analysis of arch dam-foundation systems . FEM cannot effectively simulate the faults and joints in rock foundations .

代表性单元体包括岩石层和节理层以及两种或两种以上不同物理力学特性的岩石材料，考虑它们自身的抗弯能力。

The representative element volume contained the rock layers and the joints , two or more different physical and mechanical characteristics the rock layers , which considering the rock material itself resist-bend ability .

算例研究中，对一由砂浆锚杆和喷层加固的节理岩体进行试验，分别采用复合单元法和离散模型有限单元法进行弹性计算。

The conventional finite element can be treated as a degradation of the composite element . In the numerical example , elastic calculation for a jointed rock mass supported by grout-bolt and shotcrete lining is carried out by CEM and distinct element FEM .

但由于受断裂带的影响，在断裂带两侧一定范围内早期共轭剪节理不发育或者被强烈改造而变形，主要发育层间剪节理和纵张节理。

But due to the influence of fracture zone , within a certain range of both sides of the fault zone , the early conjugate shear fractures not development or strong modification and deformation , and produced interlaminar shear fractures and longitudinal tension fractures .

绿色开采的理论基础为：开采后岩层中的关键层运动形成的节理裂隙与离层规律以及瓦斯与地下水在破断岩层中的渗流规律。

The theory foundation of the green technique in coal mining is the distribution behaviour of joints , fractures and bed separations , the seepage flow behaviour of methane and water in the broken rock strata caused by the key strata break after mining .