含厚夹矸煤层的综放开采

以现场实测资料为基础，采用实验研究和理论研究相结合的方式对开滦范各庄矿含厚夹矸煤层的放顶煤开采进行了研究分析。主要以实验室相似模拟实验为主，对含夹矸复杂结构厚煤层中的2429S综放工作面含夹矸顶煤的冒放性、放煤工艺及放出规律、夹矸层极限厚度的确定等问题进行了论述，并指出了含夹矸顶煤的活动规律和放顶煤开采的技术措施。

Sub-level caving mining with seam of thickness dirt band

The paper introduces the attempts to subject seam of thickness dirt band to fully-mechanized with sub-level caving in Kailuan Fangezhuang mine depending on site practical data and combining experimentation with theoretical study. By analogue simulating test, the paper discusses fully-mechanized sub-level with dirt band, the top-coal caving and drawing property, the caving procedure and drawing law, and the dirt band critical thickness related to complex structure thickness seam of 2429S. The paper features the rule governing the movement of top-coal with dirt band and the technical measures of sub-level caving mining.