工作面布置图
祁东煤矿3.0 Mt/a新井设计
摘要
本设计包括三个部分：一般部分、专题部分和翻译部分。
一般部分为祁东煤矿3.0 Mt/a新井设计。一般部分共包括10章：1.矿区概述及井田地质特征；2.井田境界与储量；3.矿井工作制度、设计生产能力及服务年限；4.井田开拓；5.准备方式-采区巷道布置；6.采煤方法；7.井下运输；8.矿井提升；9.矿井通风与安全；10.矿井基本技术经济指标。
祁东矿位于安徽省宿州市埇桥区祁县镇、西寺坡镇和固镇县湖沟区境内，井田中心距宿州市约20km，交通便利。井田形状近似长方形，东西长约4.5 km，南北宽约1.4 km，面积约24 km2。井田内开采61和71煤层，先采61。煤层倾角9.05~13.8°，平均12.1°。两煤层平均厚度均为7.0 m。井田地质条件较为简单。
矿井工业储量为488.397Mt，可采储量为297.74Mt。矿井设计生产能力为3.0Mt/a。矿井服务年限70.89 a。矿井涌水量不大，正常涌水量为440 m3/h，最大涌水量为630 m3/h。煤层相对瓦斯涌出量为10m3/t，属高瓦斯煤层。煤层自燃倾向等级为三类不易自燃；除无烟煤与天然焦以外，煤尘均具有爆炸危险。
矿井采用立井两水平开拓，暗斜井延深，下行开采。一矿一面，采煤方法为综合机械化放顶煤开采。全矿采用胶带运输机运煤，辅助运输采用1.5 t固定箱式矿车。矿井通风方式采用两翼对角式。
矿井年工作日为330 d，日净提升时间16 h，工作制度为“三八制”。专题部分题目是深部巷道支护技术研究。翻译部分是一篇关于低透气性单煤层综合瓦斯抽采技术的，英文题目为Research
into Comprehensive Gas Extraction Technology of Single Coal Seams with Low Permeability in the Jiaozuo Coal Mining Area。
关键词：新井设计；放顶煤；两翼对角式
ABSTRACT
This design contains three parts: the general part，the special subject part and the translation. The general part is a new design of the Qidong mine. This part is divided into ten chapters: 1.An outline of the mine field geology; 2. Boundary and the reserves of mine; 3.The service life and working system of mine; 4.Development engineering of coalfield; 5.The layout of mining area; 6.The method used in coal mining; 7. Transportation of the underground; 8.The lifting of the mine; 9. The ventilation and the safety operation of the mine; 10.The basic economic and
technical norms.
The Q idong mine locates at the crosspart of Qixian, Xisipo and Guzhen of Suzhou in Anhui province, 20 km away from the center of the town. And the transportation is very convenience. The shape of minefield is like a rectangle which has a length of 4.5 km in the east and west and a width of 1.4 km in the south and north on average. The total plane area of the mine is about 24
km2. There are two coal seams in the mine —NO.61 and NO. 71. Mining the NO.61 coal seam
firstly.The angle is about 9.05~13.8 degree with an average of 12.1 and the thickness of both coal seams is about 7.0 m. The minefield geological condition is simple.
The proved reserves of the minefield are 488.397 million tons. The recoverable reserves are
297.74 million tons. The designed productive capacity is 3.0 million tons per year. The service life is 70.89 years. The normal water flow of the mine is 440 m3 per hour and the max water flow is 630 m3 per hour. The Relative gas discharge quantity is 10 m3 per ton, whichmeans it is a high gaseous mine. The coal seam is hardly spontaneous combustion and the level of spontaneous combustion is Ⅲ. Apart from coal without gas, the coal seam is of high explosion hazard.
The development of the mine is double levels with vertical shaft at the first level and inclind shaft at the second level. The number of the working faces is only one. The mining method is Comprehensive mechanization with putting off the top coal technology. Several belt conveyers undertake the job of coal transport in the mine and the auxiliary transportation system is centralized juxtapose. The ventilation method is diagonal ventilation system.
We work 330 days per year and exaltate 16 hours one day. The ―three–eight‖ working system is applied for coal mining.
The title of the special subject part is ―Study on the Support of Depth Portion tunnel Technique‖.
The translation prat is a paper about gas extraction technology of single coal seam with low permeability.Its title is ―Research into Comprehensive Gas Extraction Technology of Single Coal Seams with Low Permeability in the Jiaozuo Coal Mining Area‖.
Keywords：design of mine; top-coal caving; diagonal ventilation system
目录
1矿区概述及井田地质特征1
1.1矿区概述1
1.1.1矿区地理位置1
1.1.2矿区经济概述2
1.1.3矿区气候条件2
1.1.4矿区的水文情况2
1.2井田地质特征2
1.2.1井田地质构造2
1.2.2井田勘探概述2
1.2.3井田地层3
1.2.4水文地质特征3
1.3煤层特征9
1.3.1每层埋藏条件9
1.3.2每层群层数及围岩性质9
1.3.3煤质特征9
1.3.4瓦期、煤尘、自燃发火及地温10
1.3.5工业用途10
2井田境界与储量11
2.1井田境界11
2.1.1井田范围确定依据11
2.1.2井田范围11
2.1.3开采界限11
2.1.4井田尺寸11
2.2矿井工业储量12
2.2.1储量计算基础12
2.2.2井田地质勘探12
2.2.3工业指标的确定12
2.2.3工业储量计算13
2.3矿井可采储量16
2.3.1安全煤柱留设原则16
2.3.2矿井永久保护煤柱损失量16
2.3.3矿井可采储量18
3矿井工作制度、设计生产能力及服务年限20
3.1矿井工作制度20
3.2矿井设计生产能力及服务年限20
3.2.1确定依据20
3.2.2矿井设计生产能力20
3.2.3矿井服务年限20
3.2.4井型校核21
4井田开拓22
4.1井田开拓的基本问题22
4.1.1井筒形式的确定22
4.1.2工业场地的位置24
4.1.3开采水平的确定24
4.1.4矿井开拓方案比较24
4.2矿井基本巷道33
4.2.1井筒33
4.2.2开拓巷道33
4.2.3井底车场及硐室33
5准备方式枣采区巷道布置43
5.1煤层地质特征43
5.1.1采区位置43
5.1.2采区煤层特征43
5.1.3煤层顶底板岩石构造情况43
5.1.4水文地质43
5.1.5地质构造43
5.1.6地表情况43
5.2采区巷道布置及生产系统43
5.2.1采区位置及尺寸43
5.2.2采煤方法及工作面长度的确定43
5.2.3确定采区回采巷道的尺寸、支护方式及通风方式44
5.2.4煤柱尺寸的确定45
5.2.5采区生产系统45
5.2.6采区内巷道掘进方法45
5.2.7采区生产能力及采出率45
5.3采区车场选型设计48
5.3.1确定车场形式48
5.3.2采区主要硐室布置49
6采煤方法50
6.1采煤工艺方式50
6.1.1采区煤层特征及地质条件50
6.1.2确定采煤工艺方式50
6.1.3回采工作面参数的确定51
6.1.4回采工作面破煤、装煤方式52
6.1.5回采工作面运煤方式53
6.1.6回采工作面支护方式53
6.1.7采放比、放煤步距、放煤方式55
6.1.8各工艺过程注意事项56
6.2劳动组织和工作面成本57
6.2.1劳动组织57
6.2.2工作面吨煤成本57
6.3回采巷道布置59
6.3.1回采巷道布置方式59
6.3.2回采巷道参数59
6.3.2支护方式61
7井下运输63
7.1概述63
7.1.1井下运输的原始条件和数据63
7.1.2井下运输系统63
7.2煤炭运输方式和设备选择63
7.3辅助运输方式和设备选择65
7.3.1选择电机车65
7.3.2设备选择66
8矿井提升68
8.1矿井提升的原始数据和地质条件68
8.2主副井提升68
8.2.1主井提升68
8.2.2副井提升71
9矿井通风及安全73
9.1矿井通风系统确定73
9.1.1矿井概况73
9.1.2矿井通风系统的基本要求73
9.1.3矿井通风方式的确定73
9.1.4矿井通风方法的选择75
9.1.5采区通风系统的要求77
9.1.6工作面通风方式的选择77
9.2矿井风量计算78
9.2.1采煤工作面实际需风量78
9.2.2备用工作面需风量80
9.2.3掘进工作面需风量80
9.2.4硐室需风量80
9.2.5其它巷道需风量80
9.2.6矿井总风量80
9.2.7风量分配81
9.2.8风量验算81
9.3矿井通风总阻力计算82
9.3.1矿井通风总阻力计算原则82
9.3.2确定矿井通风容易和困难时期83
9.3.3矿井最大阻力路线83
9.3.4矿井通风阻力计算83
9.3.5矿井总风阻等积孔计算88
9.4选择矿井通风设备89
9.4.1主要通风机选择89
9.4.2电动机选型92
9.5安全灾害的预防措施92
9.5.1瓦斯管理措施92
9.5.2煤尘的防治92
9.5.3预防井下火灾的措施93
9.5.4防水措施93
10设计矿井基本技术经济指标94
参考文献96
致谢97
祁东矿开拓平面图
采区巷道布置刨面图
采区巷道布置平面图
祁东矿开拓刨面图
设计目录1
设计所包含文件
摘要部分
字数统计
设计目录2
