张双楼煤矿3.0Mta新井设计.pdf

1、 摘要 一般部分针对徐州张双楼煤矿进行了井型为 3.0Mt/a 的新井设计。张双楼煤矿井位于江苏省沛县安国镇境内，井田走向长 13.5km，倾斜宽 2.9km，面积约 37.9km2。主采煤层为 9#煤层，煤层倾角 1821，平均厚度10.0m。井田工业储量为 402.7Mt，可采储量265Mt，矿井服务年限为 68a。矿井正常涌水量为 280m3/h，最大涌水量为 330m3/h；矿井相对瓦斯涌出量为 1.22m3/t，属低瓦斯矿井。根据井田地质条件，设计采用双立井两水平开拓方式，暗斜井延深。井田采用全采区式布置方式，共划分为六个采区。轨道大巷、运输大巷皆为岩石大巷，布置在 9#煤层底板岩层

2、中。考虑到本矿井走向长度较大，开采深度较大。在第一水平开采时采用分区对角式通风方式，第二水平采用中央并列式通风方式。针对东一采区采用了采区准备方式，共划分 8 个工作面，并进行了运煤、通风、运料、排矸、供电系统设计。针对 9102 工作面进行了采煤工艺设计。该工作面煤层平均厚度为 10.0m，平均倾角19，直接顶为中细砂岩，老顶为中砂岩。工作面采用长壁综采放顶煤采煤法。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 0.6m，每天 9 个循环，循环进尺 5.4m，月推进度 162m。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

3、16t 箕斗提煤，副井采用一套 5t 带平衡锤双层单车罐笼和一套一大罐笼5t 双层单车罐笼运料和升降人员。专题部分题目为 深部巷道变形机理及支护技术浅析，翻译部分题目为 An influence function method based subsidence predictionprogram for longwall mining operations in inclined coal seams。关键词：张双楼煤矿；立井两水平；采区；综采放顶煤；分区对角式；深井巷道支护 ABSTRACT The general design is about a 3.0Mt/a new undergro

4、und mine design of Zhangshuanglou coal mine.Zhangshuangloucoal mine is located inPeixian,Jiangsu province.Its about 13.5 km on the strike and 2.9 km on the dip,with the 37.9 km2 total horizontal area.The minable coal seam is 9#with an average thickness of 10.0m and a dip of 1821.The proved reserves

5、of this coal mine are 402.7 Mt and the minable reserves are 265 Mt,with a mine life of 68a.The normal mine inflow is 280 m3/h and the maximum mine inflow is 330 m3/h.The mine gas emission rate is 1.22m3/t,which can be recognized aslow gas mine.Based on the geological condition of the mine,this desig

6、n uses a duel-vertical shaft double-level development method,inclind staple shaftdeepeningand full panel preparation,which divided into eightpanels,and track roadway andbelt conveyor roadwayare all rock roadways,arranged in the floor rockof 9#coal seam.Taking into length of the mine and depth of ext

7、raction,themine ventilation method use zoningdiagonal ventilation at the first level,and cewntral paratactic ventilation at the second level.The design applies panel preparation against the first band of East One which divided into8panels totally,and conducted coal conveyance,ventilation,gangue conv

8、eyance and electricity designing.The design conducted coal mining technology design against the 9102 face.The coal seam average thickness of this working face is 10.0m and the average dip is19,the immediate roof is average fine sand block and the main roof is average sand stone.The working face appl

9、ies fullymechanized longwall top-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 0.6m with nineworking cycles per day,and the advance of a working cycle is 5.4 m and the adva

10、nce is 162m per month.Main roadway makes use of belt conveyor to transport coal resource,and battery locomotive to be assistant transport.The main shaft uses double 16t skips to liftcoal with a balancehammer and the auxiliary shaft uses a 5 tsingle-car double-deck cage and amammoth 5t single-car dou

11、ble-deck cage to lift material and personnel transportation.The monographic studyentitled Case Study and Research of Deep Soft Rock Pressure Observationand the titleof the translated academic paper is An influence function method based subsidence predictionprogram for longwall mining operations in i

12、nclined coal seams.Keywords:Zhangshuanglou coal mine;double vertical shaft;panel preparation;top-coal caving;zoningdiagonal ventilation;deep shaft bolting 目 录 一般部分一般部分 1 矿井概况与地质特征矿井概况与地质特征.1 1.1 矿井概况.1 1.1.1 地理位置与交通.1 1.1.2 地形地貌及水文情况.1 1.1.3 气候条件.1 1.1.4 其它.2 1.2 井田地质特征.2 1.2.1 地层.2 1.2.2 地质构造.4 1.2

13、.3 水文地质条件.4 1.3 煤层特征.5 1.3.1 煤层.5 1.3.2 煤质.6 2 井田境界和储量井田境界和储量.9 2.1 井田境界.9 2.2 井田工业储量.9 2.2.1 储量计算基础.9 2.2.2 井田勘探情况.9 2.2.3 矿井工业储量计算.10 2.3 矿井设计储量.11 2.3.1 永久损失煤柱.11 2.3.2 矿井设计储量.12 2.4 矿井可采储量.12 2.4.1 工业广场保护煤柱量.12 2.4.2 主要井巷保护煤柱.13 2.4.3 矿井可采储量.13 3 矿井工作制度、设计生产能力及服务年限矿井工作制度、设计生产能力及服务年限.15 3.1 矿井工作制

14、度.15 3.2 矿井设计生产能力及服务年限.15 3.2.1 确定依据.15 3.2.2 矿井设计生产能力.15 3.2.3 矿井和第一水平服务年限.15 3.2.4 井型校核.16 4 井田开拓井田开拓.18 4.1 井田开拓的基本问题.18 4.1.1 确定井筒的形式、位置及坐标.18 4.1.2 工业场地的位置.20 4.1.3 开采水平的确定及采区的划分.20 4.1.4 主要开拓巷道.21 4.1.5 开拓方案比较.21 4.2 矿井基本巷道.26 4.2.1 井筒.26 4.2.2 井底车场.29 5 准备方式准备方式采区巷道布置采区巷道布置.33 5.1 煤层地质特征.33 5

15、.1.1 采区位置.33 5.1.2 采区煤层特征.33 5.1.3 煤层顶底板岩石构造情况.33 5.1.4 水文地质.34 5.1.5 地质构造.34 5.2 采区巷道布置及生产系统.34 5.2.1 采区准备方式的确定.34 5.2.2 采区巷道布置.34 5.2.3 采区生产系统.35 5.2.4 采区内巷道掘进方法.35 5.3 采区生产能力及采出率.35 5.3.1 采区生产能力.35 5.3.2 采区采出率.36 5.4 采区车场选型设计.37 6 采煤方法采煤方法.39 6.1 采煤工艺方式.39 6.1.1 采区煤层特征及地质条件.39 6.1.2 确定采煤工艺方式.39 6

16、.1.3 回采工作面参数.40 6.1.4 采煤工作面破煤、装煤方式.41 6.1.5 采煤工作面支护方式.44 6.1.6 端头支护及超前支护方式.47 6.1.7 各工艺过程注意事项.48 6.1.8 回采工作面正规循环作业.49 6.2 回采巷道布置.53 6.2.1 回采巷道布置方式.53 6.2.2 回采巷道支护参数.53 7 井下运输井下运输.55 7.1 概述.55 7.1.1 井下运输原始数据.55 7.1.2 井下运输系统.55 7.2 煤炭运输方式和设备的选择.56 7.2.1 煤炭运输方式的选择.56 7.2.2 采区煤炭运输设备选型及验算.56 7.2.3 运输大巷设备选择.58 7.3 辅助运输方式和设备选择.59 7.3.1 辅助运输方式选择.59 7.3.2 辅助运输设备选择.59 8 矿井提升矿井提升.62 8.1 矿井提升概述.62 8.2 主副井提升.62 8.2.1 主井提升.62 8.2.2 副井提升.65 9 矿井通风及安全技术矿井通风及安全技术.68 9.1 矿井通风系统的选择.68 9.1.1 矿井通风系统的基本要求.68 9.1.2 矿井