城郊煤矿1.2Mta新井设计【专题综放沿空掘巷窄煤柱留设数值模拟研究】.docx

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。一般部分为永煤集团城郊煤矿1.2Mt/a新井设计。全篇共分为十个部分：矿井概况及井田地质特征、井田境界及储量、矿井工作制度、设计生产能力、井田开拓、矿井基本巷道、采煤方法、采区巷道布置、井下运输、矿井提升、矿井通风与安全和矿井主要经济技术指标。城郊矿位于河南省永城市境内。井田东西走向平均长3.83km，南北平均宽4.63km，面积约17.6km2。 井田内可采煤层为二2煤，其赋存稳定，厚度平均为7.13m，倾角平均7，为缓倾斜煤层。井田内工业储量为17.6亿t，可采储量为1.17亿t。矿井平均涌水量为200300m3/d，井田中各煤层沼气

2、含量一般小于5cm3/g，属低沼气矿井。各煤层均无煤尘爆炸危险。各煤层均属不自燃发火煤层；地温2930。城郊煤矿年设计生产能力为1.2万t/a，服务年限为67.9年。采用立井开拓，暗斜井延深的开拓方式。工作制度为“三八”制。第一水平标高为450m，第二水平标高为-750m。矿井采用倾斜长壁综合机械化采煤法，放顶煤开采。矿井布置一个综采工作面，面长168m。煤炭通过胶带输送机运输。矿井通风方式为中央并列式。专题部分：专题题目为“综放沿空掘巷窄煤柱留设数值模拟研究”。主要分析了窄煤柱宽度对沿空巷道的影响。翻译部分：翻译了一篇Mahendra Singh n与Bhawani Singh发表的论文，题

3、目为“改进的莫尔-库仑准则对非线性三轴和多轴节理岩石的强度影响” 。关键词：立井；采区；胶带运输；中央并列式ABSTRACTThis design contains three parts: the general，the special subject and the translation.The general part is a new design of Chengjiao Mine in Yongcheng coal & electricity combine. The whole article is divided into ten parts: the outline of

4、the mine, the mine field geology, the boundary and reserves, the designed productive capacity, the service life and working area, the coal transportation, the mine lifting, the ventilation and safety, and the main economical and technological index of the mine.The chengjiao mine located in the Wing

5、city in Henan Province. The Ida toward the average length 3.83km, north and south an average width of 4.63km, an area of about 17.6km2. Ida within the coal layer, the occurrence of stability for the two 2 coal, the average thickness of 7.13m, dip an average of 7 , gently inclined coal seam. Ida with

6、in the industrial reserves of 1.76 billion tons of recoverable reserves of 117 million tons. Mine the average water inflow of 200 300m3 / d, Ida coal-bed methane content is generally less than 5cm3 / g, is a low methane mine. The coal seam there was no danger of dust explosion. Each seam are not spo

7、ntaneous combustion of coal; ground temperature 29 30 .chengjiao coal mine design production capacity of 12,000 t / a, length of service was 67.9 years. Using vertical shaft open up, open up the way the dark deep inclined shaft extension. The system of work for the 38 system. The first level of elev

8、ation of the second level of elevation-750m-450m. Mine using the tilt mechanized coal mining method of longwall top coal caving. There is only one working face in the mine. It is comprehensive mechanized coal face. The length of the face is 250m, and the designed productive capacity of the face is 3

9、.0 million tons per year. Coal is transported by belt conveyer and the diagonal ventilation system is used in Chengjiao.The mine layout of a fully mechanized coal face, long face 168m. Coal belt conveyor transport. Mine ventilation for the central parallel.Thematic sections: project entitled caving

10、Digging in the narrow Coal Pillar Design Numerical Simulation of The narrow coal pillar width of gob.Translation parts: the translation of one of the Mahendra Singh, n and Bhawani Singh, published papers, the title of the Modied MohrCoulomb criterion for non-linear triaxial and polyaxial strength of

11、 jointed rocksKeywords：Shaft; mining area; tape transport; central parallel目 录一般部分1矿井概述及井田地址特征11.1 矿井概述11.1.1 地理位置11.1.2地形特点11.1.3交通条件11.1.4居民、经济、资源供应11.1.5主要河流及气候条件11.2井田地质特征21.2.1井田的勘探程度21.2.2地层31.2.3地质构造41.2.4水文地质条件51.2.5地温51.3煤层地质特征51.3.1煤层埋藏条件51.3.2煤质51.3.3煤层顶底板61.3.4瓦斯、煤尘等62井田境界和储量72.1井田境界72.1

12、.1井田特征72.2矿井工业储量72.2.1井田地质勘探72.2.2矿井工业储量核定72.3 矿井可采储量82.3.1边界断层保护煤柱82.3.2煤层露头的安全防水煤柱82.3.3人为边界保护煤柱82.3.4井田内断层保护煤柱82.3.5工业广场煤柱82.3.6工业广场与F5断层重复煤柱量93矿井的工作制度设计生产能力及服务年限113.1矿井工作制度113.2矿井设计生产能力及服务年限113.2.1确定依据113.2.2矿井设计生产能力的确定113.2.3矿井服务年限113.3井型校核123.3.1矿井开采能力校核123.3.2辅助生产环节的能力校核123.3.3通风安全条件的校核123.3.

13、4第一水平服务年限校核124井田开拓134.1井田开拓的基本问题134.1.1确定井筒形式、数目、位置及坐标134.1.2工业场地的位置144.1.3开采水平的确定及采采区划分144.1.4主要开拓巷道144.1.5方案比较144.2矿井基本巷道204.2.1井筒204.2.2大巷235准备方式采区布置275.1煤层地质特征275.1.1采区位置275.1.2采区煤层特征275.1.3煤层顶底板岩石构造情况275.1.4水文地质275.2采区巷道布置及生产系统275.2.1采区准备方式的确定275.2.2采区巷道布置275.2.3采区生产系统295.2.4采区生产能力及采出率305.3采区车场

14、选型计算315.3.3采区主要硐室布置316采煤方法336.1采煤工艺方式336.1.1采区煤层特征及地质条件336.1.2确定采煤工艺方式336.1.3回采工作面参数346.1.4回采工艺及工作面设备选型346.1.5采煤工作面支护方式386.1.6端头支护及超前支护方式406.1.7各工艺过程注意事项416.1.8回采工作面正规循环作业426.2回采巷道布置446.2.1回采巷道布置方式446.2.2回采巷道参数447井下运输487.1概述487.1.1井下运输设计的原始条件与数据487.1.2运输距离和货载量487.1.3井下运输系统487.2带区运输设备选型497.2.1设备选型原则4

15、97.2.2带区运输设备的选型及能力验算497.3大巷运输设备选型527.3.1运煤设备527.3.2辅助运输设备选择528矿井提升558.1矿井提升概述558.2主副井提升558.2.1主井提升558.2.2副井提升589矿井通风及安全609.1矿井通风系统选择609.1.1矿井概述609.1.2矿井通风系统的确定609.1.3采区通风系统的确定639.1.4矿井通风容易与困难时期的确定649.2带区及全矿所需风量679.2.1采煤工作面实际需风量679.2.2掘进工作面实际需风量689.2.3硐室需风量699.2.4其它巷道需风量709.2.5矿井所需总风量709.2.6风量分配及风速验算709.3全矿通风阻力的计算719.3.1矿井通风总阻力计算原则719.3.2矿井最大阻力路线729.3.3矿井通风阻力计算729.3.4矿井通风总阻力739.4矿井通风设备选型