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1·Pingcha gold deposit is a Sb-Au of rich in sulphide, controlled by the E-W secondary fracture and alteration zone and being small in scal but high in grade.

靖州平茶金矿为多硫化物型锑金矿床，矿化受近东西向次级断裂和蚀变带控制，矿床规模小，但品位高。

2·Based on the fractal characteristic of concrete material, the relation between fracture toughness and height of crack zone is analyzed.

根据混凝土材料裂纹的分形特性，分析了混凝土的断裂韧度与裂纹带高度之间的变化关系。

3·Then the direction of fracture zone can be determined by making both X, Y-component detection in data acquisition and coordinate revolution in data processing.

如果野外作了X、Y分量观测，室内又作了坐标旋转处理，那么，就可以进一步确定裂缝带的方向。

4·Finally, this paper gives a shape equation of rock compression shear fracture nucleus describing the microcracking zone.

在上述结果基础上，提出了描述该微裂区的岩石压剪断裂核的形状方程。

5·The calculated results coincide with damage zone sizes estimated by means of WEK fracture model.

其结果与WEK断裂模型所估计的损伤区尺寸颇为一致。

6·The main factors influencing the gas preservation condition includes the fault amplitude, fault fragmented intervals, fault surface dip, and the position of fracture cavity system in the faulted zone.

大断裂影响缝洞系统保存条件的主要因素包括：大断裂断距、断层上消失层位、断面倾角、盖层厚度以及缝洞系统所处断裂带位置等。

7·Fracture porosity is the highest in the zone of transmeridional faults, and is higher in northeast faults than in northwest and transmeridional middle or small faults.

裂缝孔隙度高值区主要分布在断层附近，北东向中小断层处的裂缝孔隙度比北西向和东西向小断层的稍大。

8·This logging method is simple and practical, can effectively recognize rock type, fracture developed zone and fracture occurrence, and is worth of spreading.

该测井识别方法简单、实用，可有效识别岩石类型、裂缝发育带以及裂缝产状，具有一定的推广应用价值。

9·Knowledge of the stress variation between the pay zone and the adjacent layers is therefore essential for predicting the extent that the fracture grows out of the zone.

因此，对产油区和相邻层之间应力变化的了解，对于预测该地层产生断裂的程度则非常重要。

10·The induced stress of initial damage zone results in the redistribution of surrounding rock stress when the micro-crack closes after hydraulic fracture.

水力压裂后，当微裂缝闭合时初始损伤带的诱导应力导致围岩应力重新分布。