同煤集团马脊梁煤矿7号煤层开采设计.doc
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 集团 脊梁 煤矿 煤层 开采 设计
- 资源描述:
-
1、摘 要根据井田地质资料可得,马脊梁煤矿的7号煤层,煤层的平均厚度为3.43m。煤层瓦斯的相对涌出量平均为2.44m3/t。煤层存在爆炸危险。煤的自燃倾向是易自燃。并且根据矿井涌水量的预测,马脊梁煤矿的正常涌水量为40130m3/h。大同煤田地处于晋北,横跨大同、左云、右玉、山阴等五个地区。并且附近有“一九”国道。井田开拓方式为斜井单水平开拓方式,总共开掘有两个进风井(主井、副井)和三个回风井。井田共划分有六个盘区,开采煤层为七号煤层,煤矿的首采工作面位于第三盘区,首采工作面为301回采工作面。回采工作面长1584m,采用综采一次采全厚机械化开采方式,工作系统采用“四六制”作业系统。采空区顶板管
2、理方法是全部跨落法管理顶板关键词: 斜井开拓;综合机械化采煤;全部垮落法。山西大同大学煤炭工程学院16届本科毕业设计ACSTRACTAccording to the geological data of the well field, the average thickness of coal seam no. 7 in MAJILIANG coal mine is 3.43m. The relative gas emission of coal seam is 2.44m3/t on average. The coal seam is in danger of explosion. The
3、natural tendency of coal to spontaneous combustion. According to the prediction of mine water inflow, the normal water inflow of MaJiLiang coal mine is 40-130m3/h. The DaTong coalfield is located in the north of ShanXi dynasty, spanning five areas including DaTong ZuoYun YouYu and ShanYin. And there
4、s the national highway 199 nearby. The method of well field development is single horizontal well development in inclined well. There are two wind Wells (main well and auxiliary well) and three return air Wells in total. The well field is divided into six panel areas, and the mining coal seam is 7 c
5、oal seam. The first mining face of the coal mine is located in the third bend, and the first mining face is 301 mining face. The working face of backstoping is 1584m, mechanized mining method of fully mechanized top-coal mining is adopted, and the working system adopts 46 system operating system. Th
6、e roof management method of goaf is full-span descending method.Key words: inclined shaftdevelopment; comprehensive mechanized coal mining mod: allfallway46目 录第1章 矿井概述及其井田地质特征11.1 矿区概述1 1.1.1地理位置1 1.1.2交通条件1 1.1.3水文情况2 1.1.4气候条件2 1.1.5地震3 1.1.6矿井周边小窑情况31.2 井田地质特征4 1.2.1地层4 1.2.2井田地质构造9 1.2.3井田内含水层9
展开阅读全文
图海文库所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。


阿司匹林片剂洁净区平面布局图CAD图纸.dwg
40×40矩形垫片零件的冲压复合模具设计【冲孔落料复合模】.zip

