陕西煤炭2025，Vol.44Issue(6)：32-37,6.DOI:10.20120/j.cnki.issn.1671-749x.2025.0606
煤矿综放工作面导水裂隙带演化规律研究
Evolution law of water-conducting fracture zone in coal mine fully mechanized caving face
李连祥 1张会宾 1李斌2
作者信息
- 1. 陕西旬邑县旬东煤业有限责任公司,陕西咸阳 711300
- 2. 西安科技大学能源学院,陕西西安 710054
- 折叠
摘要
Abstract
In order to improve the safety of coal seam mining under thick sandstone aquifer in Xunyao mining area,based on the production geological conditions of Chang'an Coal Mine,the height evolution law of the water-conducting fracture zone in the overlying strata of 4-2 coal seam was analyzed by theoretical analysis,numerical simulation and field measurement,and the influential law of mining thickness and aquicluge thickness of fully mechanized caving face on water-conducting fracture zone was determined.Firstly,the height range of water-conducting fracture zone in 4112 working face is 39.02～134.89 m by theoretical calculation,and the height range of water-conducting fracture zone in 4112 working face is 49.1～123.2 m by numerical simulation.The above analysis shows that the water-conducting fracture zone leads to the aquifer of Yijun Formation and partially enters the aquifer of Luohe Formation.Secondly,due to the influence of mining thickness and mudstone aquicluge thickness,the height of water-conducting fracture zone in 4112 working face shows a development trend of'high-low-higher',and the water inflow shows a development trend of'higher-low-high'.The development height influen-cing weight of water-conducting fracture zone:mudstone aquicluge thickness＞coal seam mining thickness.关键词
综放开采/导水裂隙带/开采厚度/泥岩隔水层厚度/涌水量Key words
fully mechanized caving mining/water-conducting fracture zone/mining thickness/mudstone aquiclude thick-ness/water inflow分类
矿山工程引用本文复制引用
李连祥,张会宾,李斌..煤矿综放工作面导水裂隙带演化规律研究[J].陕西煤炭,2025,44(6):32-37,6.
