UDEC simulation results show that the porosity of overburden rock fissure field in goaf and its curve is saddle-shaped.
UDEC模拟结果表明，采空区覆岩裂隙区域孔隙率曲线呈鞍状分布。
Aiming at the influence effects of roof stratum on rock burst, the research methods of physical simulation experiment in laboratory, UDEC 4.
针对顶板岩层对煤体冲击的影响作用机理，采用实验室物理模拟试验、UDEC4。
This paper analyzes the surrounding rock characteristics of single shell lining only from the mechanical mechanism aspects using the discrete element software of UDEC.
本文仅从力学方面用离散元软件udec分析了洞室围岩的单层衬砌支护特性。
Then, the reinforce project and the stress of the pre-stress cable have been simulated by the UDEC, which have not only good effect but validate the anchorage mechanism in the former chapter.
然后对加固方案和锚索的受力情况进行了模拟分析，不仅加固效果良好，而且也验证了前面章节中锚杆的加固机理。
Then, the reinforce project and the stress of the pre-stress cable have been simulated by the UDEC, which have not only good effect but validate the anchorage mechanism in the former chapter.
然后对加固方案和锚索的受力情况进行了模拟分析，不仅加固效果良好，而且也验证了前面章节中锚杆的加固机理。
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