摘要
本文根据综放工作面设备条件以及地堑构造的几何特征,确定了中煤平朔井工三矿34201工作面过地堑构造时挑顶卧底的控制范围以及单轮挑顶和卧底的角度,计算了该工作面在不同位置处的煤层倾角、工作面方向与断层之间的位置关系。该工作面的挑顶卧底工作流程为"卧底-调斜-挑顶",在过地堑构造期间控制采高为3.5 m。通过挑顶卧底及综采和综放工艺的调整,确保了工作面安全通过地质构造带,有效提高了煤炭资源回收率。
According to the equipment conditions of fully mechanized caving face and the geometric character. istics of graben, the control range of Roof-lifting and undercover,the angle of single-wheel Roof-lifting and undercover are determined, and the position relationship between coal seam dip, direction of working face and fault at different positions of working face is calculated by AutoCAD. The working flow of Roof-lifting and undercover in this working face is "undercover-inclination-roof-lifting".. During the period of graben struc. ture, the mining height is controlled by 3.. 5m.. Through the adjustment of roof lifting and undercover technolo. gy,fully mechanized mining technology and fully mechanized top coal caving technology, it is ensured that working face passes through geological structure zone safely, improving effectively the recovery rate of coal re. sources.
作者
邹光华
师皓宇
田多
胥晓峰
杨玉坤
ZOU Guanghua;SHI Haoyu;TIAN Duo;XU Xiaofeng;YANG Yukun(North China Institute of Science and Technology, Yan jiao, 065201, China)
出处
《华北科技学院学报》
2019年第3期1-6,共6页
Journal of North China Institute of Science and Technology
基金
国家自然科学基金重点项目(51674119)
河北省自然科学基金(E2016508003)
中央高校基本科研业务费(3142018022)
关键词
综放工作面
地堑
挑顶
卧底
Fully mechanized caving face
Graben
Roof-lifting
floor-fall
Production process
