Theoretical analysis, simulation experiment and engineering exploration are adopted to study the impact of the location of primary key stratum on the evolution range of water flowing fracture.
采用理论分析、模拟实验和工程探测等方法，就覆岩主关键层位置对导水裂隙带高度的影响进行深入研究。
Lithology, rock stratum thickness, fracture process, structural stress field, local structure, stratum load and karst process are all main controlling factors for the development of the rift.
岩性、岩层厚度、断裂作用、构造应力场、局部构造、地层负荷与岩溶作用是控制裂缝发育的主要因素。
When the fracture exists in the stratum, pressures in parallel direction falls much faster than that in vertical.
当地层中存在裂隙时，平行裂隙方向压力下降比垂直裂隙方向要快得多。
We did studies about the correlation of logging data and mechanics parameters of stratum by doing experiments so that the theory of fracture pressure and collapse pressure can become practical.
为了使坍塌压力和破裂压力理论变成一项可操作的技术，我们通过室内实验进行了测井参数与地层力学参数相关性研究。
The interior elements include loess property, loess joint fracture, and stratum structure.
内因主要包括黄土的土性、黄土节理裂隙、黄土地层的结构等因素。
Therefore a thorough understanding of seismic reflectance signature of fracture cave stratum will facilitate to detect fractures and caves with the difference.
利用这种差异来进行缝洞检测，必须对缝洞岩层的地震波反射特征有一个全面的了解。
All these characters of underground sedimentary stratum make it difficult to forecast the distribution of fracture.
地下岩体的所有这些特点使裂缝分布预测的难度加大。
All these characters of underground sedimentary stratum make it difficult to forecast the distribution of fracture.
地下岩体的所有这些特点使裂缝分布预测的难度加大。
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