【作者】 袁景；

【导师】 刘书贤；

【作者基本信息】 辽宁工程技术大学 ， 防灾减灾工程及防护工程， 2005， 硕士

【摘要】 地下开采引起的岩层与地表移动,能使位于开采范围内的地表水溃入井下,威胁煤矿生产安全。在处理水体下采煤问题时,主要考虑开采引起的覆岩中的裂缝是否互相连通以及互相连通的裂缝是否波及到水体。因此,研究覆岩破坏规律,特别是导水裂缝带的高度就显得极为重要。本文针对谢桥煤矿覆岩类型和开采条件,参照导水裂缝带高度的实测结果,模拟得出影响导水裂缝带发育高度的主要因素。利用数值模拟分析各因素对上覆岩层导水裂隙带高度的影响。根据模拟结果,结合现场实测资料,系统分析影响导水裂隙带高度的各种因素,建立导水裂隙带高度预测计算式。本论文成果不仅可以作为谢桥煤矿预测开采上限的重要参考依据。并且该成果无论是对覆岩破坏的理论研究还是工程实践都具有一定的参考价值。更多还原

【Abstract】 The strata and surface movements resulting from underground mining can cause the surface water in the mining range to burst into the underground mines, which threaten the security of the production in coal mines. When treating with coal mining under water, we should mostly consider if the cracks resulting from mining in the overburden are interconnected and if the interconnected cracks spread to the water. Therefore, to research the overburden’s destructive rules, especially the water suture zone’s height is of great importance. In this paper, in allusion to the overburden’s types and mining conditions in Xieqiao Mine, consulting the on-the-spot results of the water suture zone’s height, the author gains the main factors that influnce it with simulating method. With the numerical simulation, the author analyzes each factor ’s effect on the water suture zone’s height. According to the analog results and attaching the on-the-spot data, the author analyzes every factors influncing the water suture zone’s height and sets up its prognostic computation expression. The positive result can act as the important reference frame, moreover, it has certain referenced value in the theoretical investigation on the overburden’s destructions, so has it in the engineering practice.更多还原