综放工作面冒落顶煤放出控制

Control on top coal caving in long wall top coal caving working face

近年来我国综放开采技术取得了长足的进展 .提高综放工作面采出率是备受关注的技术问题 .研究顶煤冒落形态和顶煤放出控制 ,是进一步提高顶煤采出率的关键 .分析了顶煤冒落形态的影响因素和冒落顶煤体的物理力学特性 。

Recently, the great achievements have been gotten on the technology of long wall top coal caving in China. It has been regarded how to increase the coal drawing ratio in long wall top coal caving working face. It is the key of increasing top coal drawing ratio to research the forms of top coal caving and the acting controls. Based on the analysis of the influencing factors of top coal caving forms and physical mechanics characteristics of caving top coal, the methods of controlling top coal caving have been put forward.