顾桥矿1.2Mta新井设计.docx

1、 第VIII页摘 要本设计包括三个部分：一般部分、专题部分和翻译部分。一般部分为顾桥矿1.2Mt/a新井设计。顾桥矿井位于安徽省淮南市境内，井田走向长约7.52km，倾向长约3.549km，面积约28km2。主采煤层为13-1和11-2煤层，平均厚度分别为4.65m和3.10m，平均倾角都为6。井田地质条件较为简单。井田工业储量为28816万t，可采储量为20750万t。矿井设计生产能力为1.2Mt/a。矿井服务年限为115a，涌水量不大，矿井正常涌水量为280m3/h，最大涌水量为420m3/h。矿井瓦斯相对涌出量为12.85 m3/t，属高瓦斯矿井。井田开拓方式为立井单水平上下山开拓。采用

2、胶带输送机运煤，采用矿车进行辅助运输。矿井通风方式为混合式通风。矿井年工作日为330d，工作制度为“三八”制。一般部分共包括10章：1.矿区概述与井田地质特征；2.井田境界和储量；3.矿井工作制度、设计生产能力及服务年限；4.井田开拓；5.准备方式带区巷道布置；6.采煤方法； 7.井下运输；8.矿井提升；9.矿井通风与安全；10.设计矿井基本技术经济指标。专题部分题目为：浅谈高瓦斯煤层自我解放瓦斯抽采技术。主要谈论了适合我国瓦斯赋存条件的几种典型的瓦斯抽采方法。翻译部分主要内容是关于煤样块度大小与其抗压强度之间关系的研究，英文题目为： Effect of size on the compres

3、sive strength of coal。关键词：顾桥矿；立井；单水平；带区；混合式通风ABSTRACTThis design includes three parts: the general part, the special subject part and the translation part. The general part is about a 1.2 Mt/a new underground mine design of Guqiao mine. Guqiao mine is located in Huainan, Anhui province. Its about 7.

4、52 km on the strike and 3.549 km on the dip, with the 28 km2 total horizontal area. The minable coal seams are 13-1 and 11-2 with an average thickness of 4.65 m and 3.10 m, the average dip is 6. The geologic structure of this coalfield is simple.The recoverable reserves of the coalfield are 288.16 m

5、illion tons, and the minable reserves are 207.5 million tons. The designed productive capacity is 1.2 million tons percent year, and the service life of the mine is 115 years. The normal flow of the mine is 280 m3 per hour and the max flow of the mine is 420 m3 per hour. The relative mine gas gush i

6、s 12.85 m3/t, so it is a high gas mine. The mine is a single level in two shafts to develop. Central laneway uses belt conveyor to transit coal, and trolley wagons are used for accessorial transportation in the roadway. The ventilation mode of this mine is center juxtapose form. The “three-eight” wo

7、rking system is used in the Guqiao mine. It produces for 330 days a year. This design includes 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 panels

8、; 6. The method used in coal mining; 7. Underground transportation of the mine; 8. The lifting of the mine; 9. The ventilation and the safety operation of the mine; 10. The basic economic and technical norms of the designed mine.The monographic study entitled “Shallow talking about emancipation gas

9、coal seam and gas extraction technology”. Main talk fit for China gas occurrence condition of several typical gas extraction method.Translation part is about the relationship between compressive strength and size of all cubic coal specimens. The English title is “Effect of size on the compressive st

10、rength of coal”.Keywords: Guqiao mine; Shaft; Single level; Panel; Combined ventilation目 录一 般 部 分1 矿区概述及井田地质特征11.1矿区概述11.1.1矿区地理位置11.1.2矿区气候与气象11.1.3地形与河流21.1.4地震烈度21.1.5外部建设情况21.2井田地质特征31.2.1地层31.2.2构造31.2.3煤系与煤层41.2.4水文地质41.2.5其他开采技术条件51.3煤层特征51.3.1煤层埋藏条件51.3.2可采煤层及其围岩特征61.3.3煤的特征72 井田境界与储量92.1井田境

11、界92.1.1井田境界划分的原则92.1.2开采界限92.1.3井田尺寸92.2矿井工业储量92.2.1地质资源储量92.2.2矿井工业储量计算112.3矿井可采储量122.3.1矿井可采储量初算122.3.2工业广场煤柱123 矿井工作制度、设计生产能力及服务年限153.1矿井工作制度153.2矿井设计生产能力及服务年限153.2.1确定依据153.2.2矿井设计生产能力153.2.3矿井服务年限153.2.4井型校核164 井田开拓174.1井田开拓的基本问题174.1.1确定井筒形式、数目、位置174.1.2阶段划分和开采水平设置194.1.3井田划分194.1.4主要开拓巷道194.1

12、.5开拓方案比较194.2矿井基本巷道294.2.1井筒294.2.2井底车场及硐室324.2.3大巷345 准备方式带区巷道布置395.1煤层地质特征395.1.1带区位置395.1.2带区煤层特征395.1.3煤层顶底板岩石构造情况395.1.4水文地质395.1.5地质构造395.1.6地表情况395.2带区巷道布置及生产系统395.2.1带区准备方式的确定405.2.2带区巷道布置405.2.3带区生产系统405.2.4带区内巷道掘进方法415.2.5带区生产能力及采出率415.3带区车场选型设计426 采煤方法446.1采煤工艺方式446.1.1带区煤层特征及地质条件446.1.2确

13、定采煤工艺方式446.1.3回采工作面参数446.1.4回采工作面采煤机、刮板输送机选型456.1.5采煤工作面支护方式476.1.6端头支护及超前支护方式506.1.7各工艺过程注意事项516.1.8采煤工作面正规循环作业526.2回采巷道布置546.2.1回采巷道布置方式546.2.2回采巷道参数547 井下运输597.1概述597.1.1井下运输设计的原始条件和数据597.1.2运输距离和运输设计597.1.3矿井运输系统597.2带区运输设备选择607.2.1设备选型原则607.2.2带区设备的选型607.2.3带区运输能力验算627.3大巷运输设备选择638 矿井提升658.1矿井提

14、升概述658.2主副井提升658.2.1主井提升658.2.2副井提升689 矿井通风及安全719.1矿井通风系统的选择719.1.1矿井通风系统的基本要求719.1.2矿井通风系统的确定719.1.3带区通风系统的确定729.1.4通风容易时期和通风困难时期采煤方案的确定739.2矿井风量计算779.2.1各用风地点的用风量和矿井总用风量779.2.2风量分配及风速验算809.2.3通风构筑物819.3矿井通风阻力计算819.3.1计算原则829.3.2矿井最大阻力路线829.3.3矿井通风阻力计算829.3.4矿井通风总阻力计算859.3.5矿井总风阻和等积孔计算859.4选择矿井通风设备859.4.1选择主要通风机的基本原则859.4.2通风机风压的确定869.4.3电动机选型889.4.4主要通风机附属装置899.5安全灾害的预防措施899.5.1预防瓦斯爆炸的措施899.5.2煤尘的防治措施909.5.3火灾的预防措施909.5.4水灾的预防措施909.5.5其他安全措施9110 设计矿井基本技术经济指标92参考文献93专 题 部 分浅谈高瓦斯煤层自我解放瓦斯抽采技术940 引言941 我国矿井瓦斯抽采现状及方法分类941.1我国矿井瓦斯抽采现状941.2瓦斯抽采方法分类942 瓦斯抽采的理论基础953 煤矿瓦斯抽采技术的发展964 适合我国瓦斯赋存条件的抽采方法96