采煤方法图
祁东煤矿1.2 Mt/a新井设计
摘要
本设计包括三部分：一般部分、专题部分和翻译部分。
一般部分为祁东煤矿1.2 Mt/a新井设计，共分十章：矿井概述及井田地质特征，井田境界和储量，矿井工作制度、设计生产能力及服务年限，井田开拓，采区巷道布置，采煤方法，井下运输，矿井提升，矿井通风及矿井基本技术经济指标。
位于安徽省宿州市东南，距离市中心20km。矿区对外交通便利。区内地势较为平坦，井田走向长度约9 km，倾斜方向长约4 km。面积为23.16 km2。井田主采煤层为煤层，厚度平均为4.70 m。煤层倾角平均为14°，属于缓斜煤层。
井田工业储量为157.6 Mt，矿井可采储量92.4 Mt。矿井服务年限为55 a，矿井正常涌水量为437.06，最大涌水量为586.10。矿井为高瓦斯矿井,矿井是突出矿井。
祁东煤矿矿井工作制度为“三八”制，一个综采工作面保产。开拓方式为立井暗斜井延伸两水平，水平标高分别为-650 m，-900 m，准备方式为采区巷道布置。矿井主井采用箕斗提煤，副井采用罐笼作为辅助提升。工作面采用长壁采煤法，面长180 m，采煤工艺为综采。矿井主运输为胶带运输，辅助运输采用架线电机车牵引1.5 t固定式矿车运输。矿井通风采用采区式通风。
针对南二采区采用了采区准备方式，共划分11个区段工作面，并进行了运煤、通风、运料、排矸、供电系统设计。
专题部分题目是煤矿深井巷道矿压显现及其控制研究。以相关工程测试结合目前理论研究，进行了详实的矿压显现观测数据收集与整理，给出了深井软岩巷道的变形收敛规律，结合规律提出了控制的建议，对矿井生产实践具有显着的指导意义。
翻译部分对压力拱理论结合回采率进行房柱式开采中计算支柱荷载进行了介绍，其英文题目为Coal pillar load calculation by pressure arch theory and near field extraction ratio。
关键词：祁东矿井；双立井；采区布置；综采大采高；采区式；软岩巷道；矿压显现
Abstract
This design contains three parts:the general part,the special part and the translated part.
The general part is a new design of Qi Dong coal mine located in southeast of Suzhou whose production capacity is 1.2 Mt per year.It has ten chapters as follows:the outline of mine and mine field geology, boundary and reserves, working system and productive capacity and service life, development method of the mine, the main roadways, coal mining method and layout or roadways in working area,transportation of underground, mine lifting, mine ventilation and safety, main technique—economic induces.
The QI Dong mine filed lies in the north of J southeast of Suzhou about 20 kilometers.The transportation is convenient and.It covers 23.16 square kilometers. The boundary of the minefield run 9 kilometers on the strike and the pitch length is 4 kilometers. Three is the main coal seam,its dip angle is 14 degree and thickness is about 4.70m on average.
The proved reserves of the minefield are 157.6 million tons,and the recoverable reserves are 92.4 million tons. The designed productive capacity is 1.2 million tons percent year, and the service life of the mine is 55 years. The normal flow of the mine is 437.06m3 percent hour and the max flow of the mine is 586.10m3 percent hour. The mineral well gas gushes is high, It is a high gas mineral well.
The working system is “three-eight”.One productive place meets the requirement. The mode of development this design uses a duel-vertical shaft and inclined shaft two-level development method. The mine has two levels, the first level locates in the level of –650 meters, the second in the level of –900 meters.The main shaft uses skip hoisting and the auxiliary shaft adopts cage hoisting. The working face adopts long wall retreating to the strike.Its length is 180 meters.The technology of the working face is the full-mechanized mining.Belt Conveyor to transit coal is used chiefly to transport coal, the auxiliary transportation uses 1.5t solid car. Districts ventilation is used for Xu Chang coal mine.
The design applies strip preparation against the first district of South Two which divided into 11 districts totally, and conducted coal conveyance, ventilation, gangue conveyance and electricity designing.
The monographic study entitled " Pressure behavior and control of deep mine ", with the theoretical research related engineering test, conducted a detailed pressure observation data collection and processing, gave the deformation and convergence law of soft rock roadway,with law we can recommend some control measures which really have a important influence.
The english topic of translation part is Coal pillar load calculation by pressure arch theory and near field extraction ratio.
Keywords:Qidong coal mine; double vertical shaft; district mode; full-height coal caving; districts ventilation; soft rock roadway; pressure observatin
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交通位置1
1.1.2河流1
1.1.3矿区气候条件1
1.1.4工农业生产情况1
1.2井田地质特征2
1.2.1井田地形及煤系地层概述2
1.2.2井田地质构造3
1.2.3井田水文地质4
1.3井田煤层特征7
1.3.1煤层埋藏条件及围岩性质7
1.3.2煤层特征7
2井田境界与储量9
2.1井田境界9
2.1.1井田境界划分的原则9
2.1.2井田境界9
2.2矿井工业储量10
2.2.1井田勘探类型10
2.2.2矿井工业储量的计算及储量等级的圈定10
2.3矿井可采储量10
2.3.1计算可采储量时，必须要考虑以下储量损失10
2.3.2各种煤柱损失计算11
3矿井工作制度、设计生产能力及服务年限14
3.1矿井工作制度14
3.2矿井设计生产能力及服务年限14
3.2.1确定依据14
3.2.2矿井设计生产能力14
3.2.3矿井服务年限14
3.3井型校核15
4井田开拓16
4.1井田开拓的基本问题16
4.1.1影响井田开拓的主要因素16
4.1.2井筒形式、数目的确定16
4.1.3工业广场的位置、形状和面积的确定17
4.1.4开采水平的确定18
4.1.5井底车场和运输大巷的布置18
4.1.6矿井开拓延伸及深部开拓方案18
4.1.7开采顺序18
4.1.8方案比较19
4.2矿井基本巷道25
4.2.1井筒25
4.2.2井底车场28
4.2.3主要开拓巷道30
5采区巷道布置33
5.1煤层的地质特征33
5.1.1首采区煤层特征33
5.1.2顶底板特征33
5.1.3水文地质33
5.1.4地表情况33
5.2采区巷道布置及生产系统33
5.2.1采区位置及范围33
5.2.2采煤方法及工作面长度的确定34
5.2.3确定采区各种巷道的尺寸、支护方式及通风方式34
5.2.4煤柱尺寸的确定34
5.2.5采区巷道的联络方式34
5.2.6采区接替顺序34
5.2.7采区生产系统35
5.2.8采区内巷道掘进方法35
5.2.9采区生产能力及采出率36
5.3采区车场选型设计37
5.3.1确定采区车场形式37
5.3.2采区主要硐室布置38
6采煤方法40
6.1采煤工艺方式40
6.1.1采煤方法的选择40
6.1.2确定采煤工艺方式40
6.1.3回采工作面参数42
6.1.4回采工作面破煤、装煤方式46
6.1.5回采工作面支护方式47
6.1.6端头支护及超前支护方式48
6.1.7各工艺过程注意事项48
6.1. 9回采工作面正规循环作业50
6.2回采巷道布置53
6.2.1回采巷道布置方式53
6.2.2回采巷道参数53
7井下运输56
7.1概述56
7.1.1井下运输设计的原始条件和数据56
7.1.2运输距离和货载量56
7.1.3矿井运输系统56
7.2采区运输设备选择57
7.2.1设备选型原则57
7.2.2采区设备的选型57
7.3大巷运输设备选择59
7.3.1辅助运输大巷设备选择59
8矿井提升61
8.1概述61
8.2主副井提升61
8.2.1主井提升61
8.2.2提升能力验算63
8.2.3副井提升64
9矿井通风及安全66
9.1矿井通风系统的选择66
9.1.1矿井通风系统的基本要求66
9.1.2矿井通风系统的确定66
9.1.3采区通风系统的确定68
9.2矿井风量计算68
9.2.1通风容易时期和通风困难时期采煤方案的确定69
9.2.2各用风地点的用风量和矿井总用风量71
9.2.3掘进工作面风量计算72
9.2.4硐室需风量计算73
9.2.5矿井风量计算74
9.2.6风量分配75
9.2.7通风构筑物76
9.3矿井通风阻力计算76
9.3.1计算原则76
9.3.2矿井最大阻力路线77
9.3.3矿井通风阻力计算77
9.4选择矿井通风设备79
9.4.1选择主要通风机的基本原则80
9.4.2通风机风压的确定80
9.4.3主要通风机工况点82
9.4.4主要通风机的选择及风机性能曲线82
9.4.5电动机选型83
9.5安全灾害的预防措施84
9.5.1预防瓦斯和煤尘爆炸的措施84
9.5.2预防井下火灾的措施84
9.5.3防水措施85
10矿井基本技术经济指标86
参考文献87
致谢88
祁东矿采区平面图
祁东矿采区剖面图
祁东矿开拓平面图
祁东矿开拓剖面图
设计所包含文件
摘要部分
字数统计
采区生产能力及采出率
各种煤柱损失计算
井设计生产能力
设计目录
