中文摘要：

在条带开采过程中,留设煤柱宽度和开采宽度是两个最重要的因素,不仅关系到煤炭资源的采出率,而且对煤柱稳定性,覆岩破坏和地表下沉有着十分重要的作用。为确定1109工作面开采过程中最佳的煤柱宽度和开采宽度,对开采方案进行设计和优化分析。根据理论计算可得1109工作面最佳开采宽度为58.8 m,最佳留设煤柱宽度为39 m。并采用数值模拟的方法对煤柱的稳定性进行分析,分析结果显示煤柱尺寸科学合理。

英文摘要：

Establishing coal pillar width and the mining width were two of the most important factors in the process of stripmining, not only related to the recovery rate of coal resources, but also made a difference in stability of coal pillar, rockdestruction and surface subsidence. In order to determine optimum width of coal pillar and mining width in mining processof 1109 working face, design and optimization of mining plan were analyzed. Optimum mining width of 1109 working facewas 58.8m, and optimum design of coal pillar width was 39m according to its theoretical calculation. The stability of coalpillar was analyzed by numerical simulation method, and the results showed that the size of coal pillar was scientific andreasonable.