祁东煤矿1.8Mta新井设计.docx

1、摘 要一般部分针对宿州祁东矿进行了井型为1.8Mt/a的新井设计。祁东矿井位于安徽省宿州市东南，井田走向长约9.0km，倾向长约4. 0km，面积约23.16。主采煤层为 煤层，平均倾角13，平均厚度5.6m。井田工业储量为191.30Mt，可采储量131.70Mt，矿井服务年限为56.28a。矿井正常涌水量为437.06，最大涌水量为586.10；矿井相对瓦斯涌出量为12.6，属高瓦斯矿井。根据井田地质条件，设计采用双立井暗斜井延伸两水平开拓方式，井田采用全采区式布置方式，一水平划分为两个采区，轨道大巷、胶带机大巷为岩石大巷，布置在 煤层底板岩层中。考虑到本矿井为高瓦斯矿井，矿井通风方式采分

2、区对角式通风，并在开采前预掘底板瓦斯抽排巷进行瓦斯提前卸压抽放。 针对西一采区采用了采区准备方式，共划分10个区段工作面，并进行了运煤、通风、运料、排矸、供电系统设计。针对61202工作面进行了采煤工艺设计。该工作面煤层平均厚度为5.6m，平均倾角14，直接顶为泥岩，老顶为砂岩。工作面采用长壁综采一次采全高采煤法。采用双滚筒采煤机割煤，往返一次割两刀。采用“三八制”工作制度，截深0.865m，每天四个循环，循环进尺3.46m，月推进度104m。大巷采用胶带输送机运煤，辅助运输采用架电式式电机车牵引固定箱式矿车。主井采用两套带平衡锤的12t箕斗提煤，副井采用一对1.5t矿车双层四车窄罐笼和一个带

3、平衡锤的1.5t矿车双层四车宽罐笼运料和升降人员。专题部分题目为夹河煤矿条带开采煤柱稳定性分析，以相关工程测试结合目前理论研究，进行了详实的数据收集与整理，对矿井生产实践具有显著的指导意义。翻译部分题目为Numerical modelling of the effects of weak immediate roof lithology on coal mine roadway stability，主要介绍软弱直接顶板岩性对煤矿巷道稳定性影响。关键词：祁东矿井；双立井；采区布置；综采大采高；分区对角式；软岩巷道；煤柱稳定性ABSTRACTThe general design is about

4、a 1.80 Mt/a new underground mine design of Qidong coal mine. Qindong coal mine is located in southeast of Suzhou. Its about 9.0 km on the strike and 4.0 km on the dip, with the 23.16 km2 total horizontal area. The minable coal seam is with an average thickness of 5.6 m and an average dip of 13. The

5、proved reserves of this coal mine are 192.95 Mt and the minable reserves are 131.70 Mt, with a mine life of 56.28a. The normal mine inflow is 437.06 m3/h and the maximum mine inflow is 586.10 m3/h. The mine gas emission rate is 12.6 m3/t which can be recognized as high gas mine. Based on the geologi

6、cal condition of the mine, this design uses a duel-vertical shaft and inclined shaft two-level development method, and full strip preparation ,which divided into ten districts, and track roadway, belt conveyor roadway and return airway are all rock roadways, arranged in the floor rock of 61 coal sea

7、m. Taking into account of the high gas emission, mine ventilation method use partitions ventilation, and excaves bottom gas drainage roadway before mining to relief gas pressure in advance.The design applies strip preparation against the first district of West One which divided into 10 districts tot

8、ally, and conducted coal conveyance, ventilation, gangue conveyance and electricity designing.The design conducted coal mining technology design against the 61202 workface. The coal seam average thickness of this working face is 5.6 m and the average dip is 14, the immediate roof is mud stone and th

9、e main roof is sand stone. The working face applies fully mechanized longwall full-height coal caving method, and uses double drum shearer cutting coal which cuts twice each working cycle. Three-Eight working system has been used in this design and the depth-web is 0.865 m with fou working cycles pe

10、r day, and the advance of a working cycle is 3.46 m and the advance is 104 m per month.Main roadway makes use of belt conveyor to transport coal resource, and overhead line electric locomotiveto be assistant transport. The main shaft uses double 12 t skips to lift coal with a balance hammer and the

11、auxiliary shaft uses a twins narrow1.5 t four-car double-deck cage and a wide 1.5t four-car double-deck cage to lift material and personnel transportation.The monographic study entitled Pressure behavior and control of deep mine , with the theoretical research related engineering test, conducted a d

12、etailed 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 title of the translated academic paper is Numerical modelling of the effects of weak

13、 immediate roof lithology on coal mine roadway stability,which mainly introduce the failed pillars of engineering practice by pressure arch theory and numerical simulation.Keywords:Qidong coal mine; double vertical shaft; district mode; full-height coal caving;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

14、置11.1.2矿区的水文条件11.1.3矿区的气候条件21.1.4地震情况2 1.1.5水源电源21.2 井田地质特征21.2.1井田地形及煤系地层概述21.2.2井田地质构造41.2.3井田水文地质41.3 井田煤层特征81.3.1煤层埋藏条件及围岩性质81.3.2煤层特征92 井田境界与储量102.1井田境界102.1.1井田境界划分的原则102.1.2井田境界102.2 矿井储量计算112.2.1井田勘探类型112.2.2矿井工业储量的计算及储量等级的圈定112.3 矿井可采储量122.3.1储量损失122.3.2煤柱损失计算122.3.3矿井的可采储量143 矿井工作制度、设计生产能力

15、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井型校核154 井田开拓174.1井田开拓的基本问题174.1.1影响井田开拓的主要因素174.1.2井筒形式位置数目的确定174.1.3工业场地位置形状面积的确定194.1.4开采水平的确定194.1.5井底车场和运输大巷的布置194.1.6矿井开拓延深及深部开拓方案204.1.7开采顺序204.1.8方案比较204.2 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295 准备方式采区巷道布置375.1煤层地质特征375.1.1采区位置375.1.2采区煤层特征375.1.3煤层顶底板岩石构造情况375.1.4水文地质375.1.5地质构造375.1.6地表情况385.2 采区巷道布置及生产系统385.2.1采区准备方式的确定385.2.2采区巷道布置395.2.3采区生产系统405.2.4采区内巷道掘进方法415.2.5采区生产能力及采出率425.3采区车场选型设计435.3.1采区上部车场选型435.3.2采区中部车场选型445.3.3采区下部车场选型446 采煤方法496.1 采煤工艺方式