平煤股份二矿1.2Mta新井设计.doc

1、摘 要本设计包括三个部分：一般部分、专题部分和翻译部分。一般部分共包括10章：1.矿区概述及井田地质特征；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.准备方式盘区巷道布置；6.采煤方法；7.井下运输；8.矿井提升；9.矿井通风与安全技术；10.矿井基本技术经济指标。一般部分为平煤二矿1.2Mt/a新井设计。平煤二矿开位于河南省平顶山市，交通便利。井田走向（东西）长约4.83 km，倾向（南北）长约5.84 km，井田总面积为25.44km2。主采煤层为四21（戊10）煤，倾角217，平均7。煤层平均厚度为3.45 m。井田地质条件较为简单。井田工业储量为18

2、7.7Mt，矿井可采储量136 Mt。矿井服务年限为81a，涌水量不大，矿井正常涌水量为548 m3/h，最大涌水量为1070 m3/h。矿井相对瓦斯涌出量为5.94 m3/t，绝对瓦斯涌出量为绝对瓦斯涌出量为16.49m3/min，属于低瓦斯矿井。根据井田地质条件，提出四个技术上可行的开拓方案。方案一：立井单水平开拓；方案二：立井两水平开拓；方案三：立井单水平，暗斜井延深开拓；方案四：斜井两水平开拓。通过粗略和详细技术经济比较，最终确定方案四为最优方案。一水平标高-300m，二水平标高-580m，整个井田划分为7个带区和1个采区。矿井采用中央并列式通风方式。矿井采用带区式准备方式，工作面设计

3、长度210m，采用综合机械化一次采全高采煤工艺。矿井年工作日为330d，昼夜净提升时间为16h。矿井采用“三八”制工作制度，两班生产，一班检修。生产班每班完成3个采煤循环。循环进尺为0.656m，日产量为3920t。专题部分题目为高瓦斯煤层冲击地压的防治及应用。翻译部分题目为采煤机在坚硬顶板软薄煤层开采中的应用。关键词：斜井两水平；带区，中央并列式通风，一次采全高ABSTRACTThe three parts is included in this design,i.e.,the general part, special subject part and translation.This g

4、eneral part 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; 6. The method used in coal mining; 7. Transportation of the underground; 8.Th

5、e lifting of the mine; 9. The ventilation and the safety operation of the mine; 10.The basic economic and technical norms.The general part is a new design of Pingdingshan mine with a production of 1.2 million t/a. Pingdingshan mine lines in Pingdengshan city, HeNan province. The traffic of road and

6、railway is very convenience to the mine. The run of the minefield is 4.83 km ,the width is about 5.84 km, well farmland total area is 25.44 km2. No. 4 are the main coal seam, and its dip angle is 217, 7 for average. The thickness of the mine are about 3.45 m. The geological conditions of the minefie

7、ld is relatively simple.The proved reserve of the minefield is 187.7 Mt. The designed productive capacity is136Mt, and the service life of the mine is 81years. The normal water flow of the mine is 548 m3/h and the max flow of the mine is 1070 m3/h. The relative gas emission rate of the mineral well

8、is 5.94 m3/t, for low gas mineral well.Based on the geological conditions of the mine, I bring forward four available project in technology. The first is vertical shaft development with one mining levels, the deep extension of blind slope; the second is vertical shaft development with two mining lev

9、els; the third is vertical shaft development with one mining levels and the deep extension of blind slope,and the last is slope shaft development with two mining levels. The four project is the best comparing with other three projects in technology and economy. The first mining level is -300m, the s

10、econd mining level is -580m. The mine field is divided into seven strip districts and one mining district. Taking into account the long distance in the east and west direction, The type of mine ventilation is the centralized juxtapose ventilation.Designed first mining district makes use of the metho

11、d of the mining district preparation. The design length of working face is 210 m, which uses fully mechanized mining with full-seam mining technology. The working days in one year are 330. Everyday it takes 16 hours in lifting the coal. The operation mode in the mine is “three-eight” with two teams

12、mining and the other overhauling. Every mining team makes three working cycle. So everyday there are 6 working cycles. The advance of a working cycle is 0.656 m, and the quantity of 3920 ton coal is made everyday.Special subject part of topics is: The impact of coal seam gas pressure control and app

13、licationThe translated academic paper is the shearer mining application to soft thin-seam with hard roofKeywords:two levels of slope mining ; strip district; centralized juxtapose ventilation; full-seam mining 目 录 一般部分1 矿区概述和井田地质特征11.1矿区概述11.1.1交通条件及位置11.1.2 地形、地貌11.1.3河流及水体11.1.4矿区气候条件21.1.5水源及电源21

14、.2矿井地质特征21.2.1井田煤系地层概述21.2.2井田地质构造51.2.3井田勘探程度51.2.4水文地质条件61.2.5其他有益产物61.3煤层特征71.3.1煤层71.3.2煤层顶、底板81.3.3瓦斯、煤尘和煤的自然倾向性81.3.4煤的工业牌号与用途102 井田境界和储量112.1井田境界112.1.1井田范围112.1.2开采界限112.1.3井田尺寸112.2矿井储量计算112.2.1储量计算基础112.2.2矿井工业储量122.2.3矿井可采储量143 矿井工作制度、设计生产能力及服务年限173.1矿井工作制度173.2矿井设计生产能力及服务年限173.2.1矿井设计生产能

15、力173.2.2确定依据173.2.3服务年限173.2.4井型校核184 井田开拓194.1井田开拓基本问题194.1.1确定井筒（硐）形式、数目、位置及坐标194.1.2工业场地的位置214.1.3开采水平的确定及带区、采区的划分214.1.4主要开拓巷道214.1.5开拓方案比较214.2矿井基本巷道284.2.1井筒284.2.2开拓巷道284.2.3井底车场及硐室345 准备方式带区巷道布置365.1煤层地质特征365.1.1采区煤层特征365.1.2煤层顶底板岩石构造情况365.1.3水文地质365.1.4地质构造365.1.5地表情况375.2 带区巷道布置375.2.1带区准备方式的确定375.2.2带区巷道布置385.2.3带区生产系统385.2.4带区内巷道掘进方法395.2.5带区生产能力及采出率405.3带区车场选型设计416 采煤方法426.1 采煤工艺方式426.1.1 采煤方法的选择426.1.2 回采工作面长度的确定426.1.3 工作面的推进方向和推进度426.1.4 综采工作面的设备选型及配套436.1.5 各工艺过程注意事项486.1.6 工作面端头支护和超前支护496.2回采巷道布置556.2.1回采巷道布置方式55