曹村矿井2.4Mta新井设计.docx

1、 摘 要一般部分针对曹村矿井进行了井型为2.4Mt/a的新井设计。曹村矿井位于山西临汾市境内，井田走向长约4.0km，倾向长约6.0km，面积约24km2。主采煤层为11#煤层，平均倾角25，平均厚度9m。井田工业储量为409.5Mt，可采储量267.75Mt，矿井服务年限为79.69a。矿井正常涌水量为500m3/h，最大涌水量为800m3/h。矿井相对瓦斯涌出量1.05m3/t,可以视为低瓦斯矿井。根据井田地质条件，设计采用双立井单水平开拓方式，井田采用全带区式布置方式，共划分为八个带区，轨道大巷和胶带机大巷皆为岩石大巷，布置在11#煤层底板岩层中。针对东一带区采用了带区准备方式，共划分4

2、个分带工作面，并进行了运煤、通风、运料、排矸、供电系统设计。针对11101工作面进行了采煤工艺设计。该工作面煤层平均厚度为9.0m，平均倾角3，直接顶为泥岩，老顶为细砂岩。工作面采用长壁综采放顶采煤法。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0.8m，每天六个循环，循环进尺4.8m，月推进度144m。大巷采用胶带输送机运煤，辅助运输采用蓄电池式电机车牵引固定箱式矿车。主井采用两套带平衡锤的16t箕斗提煤，副井采用一对3.0t矿车双层四车窄罐笼和一个带平衡锤的3.0t矿车双层四车宽罐笼运料和升降人员。专题部分题目为超前预爆破在综采工作面的应用研究，利用分形理论建立岩石断

3、裂耗散能量与块度分维值之间的理论关系，推导出岩石爆破块度分数维与炸药单耗之间关系。进行了室内相似材料模型爆破实验。验证了上述理论关系。利用爆破岩石表面裂晾分布的分形维数值作为衡量指标，优化爆破孔网参数。为预爆破在实践中的应用提供理论依据，然后通过介绍三种不同环境下的应用，表明该技术有效的提高了回采的安全性，降低了冲击来压强度，资源回收率大幅提高。翻译部分题目为Study on the characteristics of ground pressure behaviors in working face with great mining height at different advance

4、 speeds by similarity model experiment，主要介绍了在实验室中通过相似模型实验来研究大采高工作面在不同推进速度条件矿压呈现的规律。关键词：曹村矿井； 双立井； 带区布置； 综采放顶煤； 超前预爆破； 处理坚硬顶板ABSTRACTThe general design is about a 2.4 Mt/a new underground mine design of Caocun coal mine. Caocun coal mine is located in Linfen, Shanxi province. Its about 4.0 km on the

5、strike and 6.0 km on the dip, with the 24.0 km2 total horizontal area. The minable coal seam is 11# with an average thickness of 9.0 m and an average dip of 3. The proved reserves of this coal mine are 409.5 Mt and the minable reserves are 267.75 Mt, with a mine life of 79.69 a. The normal mine infl

6、ow is 500 m3/h and the maximum mine inflow is 800 m3/h. The mine gas emission rate is 1.05 m3/t which can be recognized as low gas mine. Based on the geological condition of the mine, this design uses a duel-vertical shaft single-level development method, and full strip preparation which divided int

7、o eight bands, and track roadway and belt conveyor roadway are all rock roadways, arranged in the floor rock of 11coal seam. The design applies strip preparation against the first band of East One which divided into 4 stirps totally, and conducted coal conveyance, ventilation, gangue conveyance and

8、electricity designing.The design conducted coal mining technology design against the 11101 face. The coal seam average thickness of this working face is 9.0 m and the average dip is 3, the immediate roof is mud stone and the main roof is sand stone. The working face applies fully mechanized caving m

9、ethod, 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 0.8 m with six working cycles per day, and the advance of a working cycle is 4.8 m and the advance is 144 m per month.Main roadway makes

10、use of belt conveyor to transport coal resource, and battery locomotive to be assistant transport. The main shaft uses double 16 t skips to lift coal with a balance hammer and the auxiliary shaft uses a twins narrow 3.0 t four-car double-deck cage and a wide 3.0 t four-car double-deck cage to lift m

11、aterial and personnel transportation.The monographic study entitled The applied research of the ahead of the pre-blasting in the working face, a simple fractal model of rock fracture is established to deal with dissipated energy of rork fracture and frartal dimension of rock fragmentation and to obt

12、ain the theoretical relation between the fractal dimension of rock fragmentation and explosive spectfic charge. The blasting experiment of simulation maternal model is conducted to verify theoretical results. Taking the fractal dimension of crack distribution on the surface of top coal as an index a

13、fter blasting top coal, some blasting parameters are optimized and the best blasting plan is finally determined in on-the-spot mining. Its conclusion provides a theoretic basic for the practical applications of the blasting softening technology.Then, by introducing the practical applications of the

14、blasting softening technology in three different environments; it shows the technology improves the mining safety and recovery rate effectively.The title of the translated academic paper is 通过相似模拟实验研究大采高工作面在不同推进速度条件下矿压显现特性. It shows the characteristics of ground pressure behaviors in working face wi

15、th great mining height at different forward speeds were studied by similarity model experiment in laboratory.Keywords: Caocun coal mine; double vertical shaft; band mode; fully mechanized coal caving; preliminary demolition; hard roof processing;第VIII页目 录目 录I一般部分1 矿井概况与地质特征11.1井田概况11.1.1位置与交通11.1.2地形地貌及水系11.1.3气候与气象21.1.4地震烈度21.1.5矿区经济概况21.1.6水源21.2井田地质特征31.2.1地层31.2.2构造41.2.3水文地质特征41.3煤层特征71.3.1 煤层赋存情况71.3.2 煤质71.3.3 煤层开采技术条件82 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井田地质勘探122.3矿井地质储量122.3.1储量计算基础122.3.2矿井地质储量计算132.3.3矿井工业储量计算142.4 矿井可采储量142.4.1井田边界保护煤柱14