山东煤炭科技2024，Vol.42Issue(11)：152-157,6.DOI:10.3969/j.issn.1005-2801.2024.11.029
大采高综采工作面"两带"发育规律研究
Research on Development Law of"Two Zones"in Large Mining Height Fully Mechanized Mining Face
吴博 1黄文峰 2李红友3
作者信息
- 1. 郓城县自然资源和规划局,山东 菏泽 274700
- 2. 菏泽市矿产资源勘探开发中心,山东 菏泽 274000
- 3. 临矿集团菏泽煤电有限公司郭屯煤矿,山东 菏泽 274700
- 折叠
摘要
Abstract
Aiming at the limitations of existing methods for predicting the development height of the two zones,FLAC3D numerical simulation software is used to simulate and calculate the development morphology and height of the water conducting fracture zone in the fully mechanized mining face with high mining height.The height and development shape of the water conducting fracture zone are calculated and predicted through empirical formulas.The development height of the water conducting fracture zone is measured on site using the downhole guide height observation instrument,and the laws of the development height and the development shape of the water conducting fracture zone are obtained,revealing the development law of the"two zones"in the large mining height working face.The research results indicate that the combination structure of"soft on top and hard on the bottom"of bedrock has a relatively strong inhibitory effect on crack development,and the height of the"two zones"is significantly lower than the calculated value of empirical formulas,which has good guiding significance for coal seam safe mining and water prevention and governance work under similar conditions.关键词
大采高/"两带"发育高度/数值模拟/井下导高观测仪观测Key words
large mining height/"two zones"development height/numerical simulation/observation by downhole guide height observation instrument分类
矿业与冶金引用本文复制引用
吴博,黄文峰,李红友..大采高综采工作面"两带"发育规律研究[J].山东煤炭科技,2024,42(11):152-157,6.
