城郊煤矿3.0Mta新井设计【专题深井软岩巷道支护原理与技术】.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300万t/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、设计生产能力及服务年限、井田开拓、准备方式、采煤方法、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。井田南北长约12km，东西宽约11km，勘探面积约103km2。井田内可采煤层为二2煤层，其赋存稳定，平均厚度3.5m，煤层最小倾角4，最大倾角15，平均倾角为8。井田内工业储量为4.4855亿t，可采储量为3.3059亿t。矿井平均涌水量为180220 m3/h，井田中各煤层沼

2、气含量一般小于0.5cm3/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；地温一般低于30。城郊煤矿年设计生产能力为300万t/a，服务年限为78.7年。采用立井开拓，石门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500m，第二水平标高为-860m。矿井采用综合机械化采煤法，一次采全高。矿井布置两个综采工作面，面长200m。煤炭通过胶带输送机运输。矿井通风方式为分区域式通风。专题部分：专题题目为“深井软岩巷道支护原理与技术”。翻译部分：翻译题目为“巷道锚杆支护设计视为均质结构的数值方法” 。关键词：立井；暗斜井；带区；胶带运输；分区域式ABSTRACTTh

3、is 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 the mine, the mine field geology, the boundary and reserves, the

4、 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 field lies in Yongcheng in Henan province. The boundary of the mine field runs 12km

5、from north to south and 11km from west to east. The total area of the mine is about 103km2. There is only one exploring layer-number two. Its average thickness of the seam is 3.5m and its stable and flatly inclined. Its dip angle is 8 degree on average. The industry reserves of the mine field are 44

6、8.55 million tons and the useable reserves are 330.59 million tons. The average inflow rate in Chengjiao mine is 180220 m3/h. It is a lower gassy mine. The coal dust doesnt have explosion hazard as well as the self-combustion tendency. The productive capacity of Chengjiao Mine is 3.0 million tons pe

7、r year，and the service life is 78.7 years. The work system is 3-shift with a 8-hour workday. Therere two working levels in the mine. The first development level is located at the -500m, and the second is at the level of -860m. The comprehensive mechanized caving method is used in Chengjiao Mine.Ther

8、e are two working faces in the mine. It is comprehensive mechanized coal face. The length of the face is 200m, and the designed productive capacity of the face is 3.0 million tons per year. Coal is transported by belt conveyer and the regional ventilation system is used in Chengjiao.The title of spe

9、cial subject is “Principles and techniques of deep soft rock supported-roadway”. The title of translation part is “A numerical approach for design of bolt-supported tunnels regarded as homogenized structures”.Keywords：shaft ; dark inclined;strip district; belt transport; regional目 录一般部分1 矿井概述及井田地质特征

10、11.1矿区概述11.1.1矿区地理位置与交通11.1.2地形地貌11.1.3主要河流21.2井田地质特征21.2.1井田勘探程度及地质报告的审批情况21.2.2井田地层与地质构造41.2.3水文地质条件51.3煤层特征71.3.1煤层埋藏条件71.3.2煤层围岩性质81.3.3煤的特征81.3.4其它开采地质条件92 井田境界与储量102.1井田境界102.1.1井田范围102.1.2井田尺寸102.2矿井工业储量计算102.2.1储量计算依据102.2.2矿井地质资源量102.2.3矿井工业储量计算112.3矿井可采储量112.3.1安全煤柱留设原则112.3.2矿井永久保护煤柱损失量12

11、2.3.3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矿井设计生产能力及服务年限确定依据153.2.2矿设计生产能力153.2.3矿井服务年限153.2.4井型校核164 井田开拓174.1井田开拓的基本问题174.1.1确定井筒形式、数目、位置及坐标174.1.2工业场地的位置、形状和面积194.1.3阶段划分及开采水平的确定194.1.4运输大巷和井底车场的布置204.1.5矿井开拓延伸方案204.1.6 开采顺序214.1.7方案比较214.2 矿井基本巷道294.2.1 井筒294.2.2 井底车场及硐

12、室304.2.3 主要开拓巷道324.2.4 巷道支护335 准备方式带区巷道布置395.1煤层地质特征395.1.1带区位置395.1.2带区煤层特征395.1.3煤层顶底板岩石构造情况395.1.4水文地质395.1.5地质构造395.1.6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405.2.4带区生产能力及采出率415.3带区车场选型计算435.3.1带区车场的形式435.3.2带区车场的调车方式435.3.3带区主要硐室布置436 采煤方法456.1采煤工艺方式456.1.1带区煤层特征及地质条件456

13、.1.2确定采煤工艺方式456.1.3回采工作面参数456.1.4回采工艺及工作面设备选型466.1.5采煤工作面支护方式496.1.6端头支护及超前支护方式516.1.7各工艺过程注意事项526.1.8回采工作面正规循环作业536.2回采巷道布置566.2.1回采巷道布置方式566.2.2回采巷道参数567 井下运输617.1概述617.1.1井下运输设计的原始条件与数据617.1.2运输距离和货载量617.1.3井下运输系统617.2带区运输设备选型627.2.1设备选型原则627.2.2带区运输设备的选型及能力验算627.3大巷运输设备选型657.3.1运煤设备657.3.2辅助运输设备

14、选择658 矿井提升688.1矿井提升概述688.2主副井提升688.2.1主井提升688.2.2副井提升709 矿井通风及安全739.1矿井通风系统选择739.1.1矿井概述739.1.2矿井通风系统的确定739.1.3带区通风系统的确定759.1.4矿井通风容易与困难时期的确定769.2带区及全矿所需风量819.2.1采煤工作面实际需风量819.2.2掘进工作面实际需风量829.2.3硐室需风量839.2.4其它巷道需风量849.2.5矿井所需总风量849.2.6风量分配及风速验算849.3全矿通风阻力的计算859.3.1矿井通风总阻力计算原则859.3.2矿井最大阻力路线859.3.3矿

15、井通风阻力计算869.3.4矿井通风总阻力879.4矿井通风设备选型889.4.1主要通风机选型889.4.2电动机选型919.4.3主要通风机附属装置919.5防治特殊灾害的安全措施929.5.1预防瓦斯灾害的措施929.5.2预防煤尘灾害的措施929.5.3预防井下火灾的措施939.5.4预防井下水灾的措施9410 设计矿井基本技术经济指标95参考文献97专题部分深井软岩巷道支护原理与技术981 绪论981.1研究意义981.2国内外研究概况981.2.1软岩巷道工程支护理论的研究现状981.2.2软岩巷道支护技术研究现状1002 深井软岩巷道控制原理与技术1032.1深井软岩巷道变形破坏特点和规律1