麻家梁煤矿8.0Mta新井设计.doc

1、 摘 要一般部分为麻家梁矿井新井8.0 Mt/a的新井设计，麻家梁矿位于山西省朔州市境内，井田面积约62 km2，主采煤层4号、9号煤层，平均厚度6.32 m、11.96 m。工业储量1615.72 Mt，可采储量1151.93 Mt，矿井服务年限110.76 a，矿井正常涌水量304 m3/h，最大涌水量464 m3/h，矿井相对瓦斯涌出量1.41 m3/t，绝对瓦斯涌出量36 m3/min，为低瓦斯矿井。根据井田地质条件，设计采用立井两水平开拓方式，暗斜井延伸。一水平开采4号煤层。井田全部采用分带布置方式。共划分6个带区，胶带大巷、轨道大巷、回风大巷均布设在煤层中。矿井前期采用中央并列式通

2、风，后期采用边界式通风。在东一带区、西六带区各布置一个工作面，并进行了运煤、通风、运料、排矸、供电系统设计。针对4601工作面进行了采煤工艺设计。该工作面煤层平均煤厚6.45 m，平均角度小于5。工作面采用综采放顶煤工艺，割煤3 m，放煤3.45 m。采用“四六制”工作制度，截深0.8 m，每天9个循环，日循环进度7.2 m。大巷采用胶带运输机运煤，辅助运输采用无轨胶轮车。主井采用两套45 t双箕斗提煤，副井采用一个双层特大宽罐笼和一8 t双层交通罐用来运料和提升人员。专题部分题目为厚煤层富水顶板控水开采技术以麻家梁矿井14101工作面为例，研究了矿井防水的措施，包括工作面的物探方法，排水钻孔

3、及泄水巷的布设等。对矿井生产实践具有显著的指导意义。翻译部分题目为Aquifer protection during longwall mining of shallow coal seams: A case study in Shen dong Coalfield of China，主要介绍浅埋煤层长壁开采过程中含水层的保护技术。关键字：麻家梁矿井；立井开拓；带区布置；综放开采；富水顶板；控水开采ABSTRACTThe general design is about a 8.0 Mt/a new underground mine design of Majialiang coal mine.

4、 Majialing coal mine is located in Shuozhou Shanxi province. Its about 62 km2. The main minable coal seam is 4# with an average thickness of 6.32 m and 9# with an average thickness of 11.96 m. The industrialreserves of the coal mine are 1615.72 Mt. the minable reserves is 1151.93 Mt with a minable l

5、ife of 110.76 a. the normal mine water inflow is 304 m3/h and the maximum mine water inflow is 464 m3/h. the relative gas inflow is 1.41 m3/t and the absolute gas inflow is 36 m3/min which can be recognized as a low gas mine.According to the geological condition of the mine, the design uses shaft de

6、velopment with two levels, and sub inclined shaft to outspread, and full strip preparation which divided into six strip districts. The track roadway, belt conveyor and return airway are all coal seam roadways. The ventilation system is central compound- like system in initial stage and unidirectiona

7、l system in later stage.Conducting a working face in both East One and West Six strip district to arrange coal conveyance, ventilation, gangue conveyance and electricity designing.The coal mining technology conducted in 4101 face is fully mechanized mining with top coal caving technology. The averag

8、e thickness of this working face is 6.45 m and the average dip is less than 5. The mining height is 3 m and top coal caving height is 3.45 m. “Four-six” working system has been used in this design and the depth-web is 0.8 m with nine working cycles per day, and the advance of a working cycle is 7.2

9、m per day.Belt conveyor is used in main roadway to transport coal. Tracklessrubber tirevehicle is used to be as assistant transport. The main shaft uses double 45 t skips to lift coal and the auxiliary shaft used a double cage with large width to lift material and a double 8 t transportation cage to

10、 lift people.The monographic study entitled “watercontroltechniquefor water-bearing roof in thick coal seam”. The study took 14101 working face in Majialiang as an example to investigate the water control technique, including geophysical prospecting in working face, layout of the water-draining bore

11、hole and discharge entry, etc.The title of the translated academic paper is “Aquifer protection during longwall mining of shallow coal seams: A case study in Shendong Coalfield of China”.Keywords: Majialiang coal mine;vertical shaft development; strip layout; fully mechanized mining with top coal ca

12、ving technology; water-bearing roof; watercontroltechnique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矿区地理位置与交通11.1.2矿区内的工业与农业11.1.3矿区气候条件11.1.4矿区的水文情况11.2井田地质特征11.2.1井田勘探程度21.2.2煤系地层21.2.3井田地质特征41.2.4井田水文地质特征41.3煤层特征61.3.1可采煤层61.3.2煤的特征61.3.3其他有益矿产81.3.4瓦斯，煤层及自燃82 井田境界和储量102.1井田境界102.2矿井储量计算102.2.1构造类型102.2.2

13、矿井工业储量102.2.3矿井可采储量132.2.4工业广场煤柱133 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矿井设计生产能力153.2.2井型校核153.2.3储量条件校核164井田开拓174.1井田开拓的基本问题174.1.1井筒形式的确定184.1.2井筒位置的确定采（带）区划分194.1.3工业场地的位置204.1.4开采水平的确定204.1.5矿井开拓方案比较204.2 矿井基本巷道274.2.1井筒274.2.2开拓巷道274.2.3井底车场及硐室275 准备方式带区巷道布置385.1煤层地质特征385.1.1带

14、区位置385.1.2带区煤层特征385.1.3煤层顶底板岩石构造情况385.1.4水文地质385.1.5地质构造385.1.6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395.2.2带区巷道布置405.2.3带区生产系统415.2.4带区内巷道掘进方法435.2.5带区生产能力及采出率436 采煤方法466.1采煤工艺方式466.1.1采煤方法的选择466.1.2回采工作面长度的确定476.1.3工作面的推进方向和推进度476.1.4综放工作面的设备选型及配套476.1.5各工艺过程注意事项546.1.6工作面端头支护和超前支护556.1.7循环图表、劳动组织57

15、6.1.8工作面吨煤成本596.1.9综合机械化放顶煤采煤过程中应注意事项616.2回采巷道布置626.2.1回采巷道布置方式626.2.2回采巷道参数627 井下运输637.1概述637.1.1井下运输设计的原始条件和数据637.1.2运输距离和货载量637.1.3矿井运输系统647.2带区运输设备选择657.2.1备选型原则657.2.2带区设备的选型657.2.3带区运输能力验算667.3大巷运输设备选择688矿井提升708.1矿井提升概述708.2主副井提升708.2.1主井提升708.2.2副井提升设备选型729 矿井通风及安全769.1矿井通风系统的选择769.1.1矿井通风系统的基本要求769.1.2矿井通风系统的确定769.1.3带区通风系统的确定789.2矿井风量计算799.2.1通风容易时期和通风困难时期采煤方案的确定799.2.2各用风地点的用风量和矿井总用风量80