摘要
在我国水体下采煤过程中,导水裂缝带的发育高度(简称导高)是确定防水煤岩柱尺寸、提高开采上限的一个重要的参数指标,对水体下安全开采、预防矿井水害具有重要的作用。当前厚煤层的开采又大多采用放顶煤开采技术,而传统经验公式仅适用于分层开采,文中利用井下导水裂缝带高度的现场探测方法不仅可以验证公式计算的正确性,同时其所得数据也更为可靠。
In the process of the coal mining under the water body in China,the development height of the water flowing fractured zone was an important parameter index to determine the size of the waterproof coal and rock pillar and improve the mining upper limit,which played the important role in safe mining under water body and the prevention of mine water disaster.At present,the top coal caving mining technology was used mostly in the mining of the thick coal seam,while the traditional empirical formulas were only suitable for the slicing mining.In this paper,detection method of the underground water flowing fractured zone height could not only verify the correctness of the formula calculation,but also obtain more reliable data in the field.
作者
易强
吕继龙
代英浩
王云龙
Yi Qiang;Lyu Jilong;Dai Yinghao;Wang Yunlong(Heilongjiang Longmei Hegang Mining Co.,Ltd.,Hegang 154100,China)
出处
《矿山测量》
2021年第4期30-33,共4页
Mine Surveying
关键词
水害
煤层特征
双端胶囊堵水器
导高观测
应用分析
water disaster
coal seam characteristics
double end capsule water shutoff device
height obser-vation
application analysis
