城郊煤矿2.4Mta新井设计【专题高水、超高水充填材料在煤矿中的应用】.pdf

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。一般部分为城郊煤矿 2.4Mt/a 新井设计。城郊煤矿位于河南省永城市，交通较为便利。井田东西长约 11km,南北宽约 12km，井田总面积为 92.5km2。主采煤层为二2煤层，平均倾角为 8，煤层平均厚度为 2.95 m。井田地质条件较为简单。井田工业储量为 385.7Mt，矿井可采储量 285.6Mt。该矿井服务年限为 85 a，涌水量不大，矿井正常涌水量为 180 m3/h，最大涌水量为 220 m3/h。矿井瓦斯涌出量较低，为低瓦斯矿井。根据井田地质条件，提出四个技术上可行的开拓方案。方案一：立井两水平开拓，暗斜井直接延深，

2、岩层大巷；方案二：立井两水平开拓，石门联合暗斜井延深，岩层大巷；方案三：立井两水平开拓，暗立井延深，岩层大巷；方案四：立井两水平开拓，暗立井延深，煤层大巷。通过粗略和详细技术经济比较，最终确定方案二为最优方案。一水平标高-500m，二水平标高-860m。由于井田面积广，因此采用分区域的通风方式，分别设立北风井、东风井和西风井。矿井年工作日为 330d，工作制度为三八制。一般部分共包括 10 章：1.矿区概述及井田地质特征；2.井田境界和储量；3.矿井工作制度及设计生产能力、服务年限；4.井田开拓；5.准备方式-带区巷道布置；6.采煤方法；7.井下运输；8.矿井提升；9.矿井通风与安全技术；10

3、.矿井基本技术经济指标。专题部分的题目为高水、超高水充填材料在煤矿中的应用，分析了超高水材料充填开采的方法，并举例论证了超高水材料开放式充填的开采研究。翻译部分主要内容是关于地下硐室支护系统设计的半经验方法。英文题目为：A semi-empirical method for the design of support systems in underground openings 关键词关键词：立井；两水平；带区；综合机械化；蓄电池电机车；分区域式通风；超高水材料 ABSTRACT This design includes of three parts:the general part,spe

4、cial subject part and translated part.The general design is about a 2.4 Mt/a new underground mine design of Chenjiao Coal Mine.Chenjiao mine lines in north-west of Yongcheng in Henan province.The traffic of road and railway is convenience to the mine.The width of the minefield is 11.00 km,the width

5、is about 12.00 km，well farmland total area is 92.5km2.The 22 is the main coal seam,and its average dip angle is 8 degree.The thickness of the mine is about 2.95m in all.The proved reserves of this coal mine are 385.7 Mt and the minable reserves are 285.6Mt.the service life of the mine is 85 years.Th

6、e normal flow of the mine is 180 m3 percent hour and the max flow of the mine is 220 m3 percent hour.The mineral well gas gushes the deal lower,for low gas mineral well.Based on the geological conditions of the mine,I bring forward four available project in technology.The first is vertical shaft dev

7、elopment with two mining levels,the deep extension of blind slope,and the rock tunnel;the second is vertical shaft development with two mining levels,the deep extension of crosscut and blind slope,and the rock tunnel;the third is vertical shaft development with two mining levels,the deep extension o

8、f blind shaft,and the rock tunnel;the last is vertical shaft development with two mining levels,the deep extension of blind shaft,and the coal tunnel.The second project is the best comparing with other three projects in technology and economy.The first mining level is-500m,the second mining level is

9、-860m.Taking into account the wide of Idas area,so the type of mine ventilation is Sub-regional ventilation,and north air shaft,east air shaft and west air shaft.The working system three-eight is used in the chenjiao mine.It produced 330 d/a.This design includes ten chapters:1.An outline of the mine

10、 field geology;2.Boundary and the reserves of mine;3.The service life and working system of mine;4.development engineering of coalfield;5.The layout of panels;6.The method used in coal mining;7.Transportation of the underground;8.The lifting of the mine;9.The ventilation and the safety operation of

11、the mine;10.The basic economic and technical norms.The title of Special section is the application of super high-water material in the coal mine,Analysis of the super high-water material fills mining method,and an example for research on using super high-water material during open back fill mining.T

12、he title of translation part is:A semi-empirical method for the design of support systems in underground openings.Keywords:shaft;two mining levels;strip district;fully-mechanized mining;Battery Locomotive；Sub-regional ventilation；super high-water material 目 录 一般部分一般部分 1 矿区概述及井田地质特征矿区概述及井田地质特征.1 1.1

13、矿区概述.1 1.1.1 矿区地理位置与交通.1 1.1.2 矿区气候条件.1 1.1.3 水文条件.2 1.1.4 自然地震.2 1.2 井田地质特征.2 1.2.1 井田地质特征.2 1.2.2 井田地质构造.4 1.2.3 水文地质.5 1.3 煤层特征.6 1.3.1 煤层埋藏条件.6 1.3.2 煤层围岩性质.7 1.3.3 煤的特征.7 1.3.4 其它开采地质条件.8 2 井田境界与储量井田境界与储量.9 2.1 井田境界.9 2.1.1 井田范围.9 2.1.2 开采界限.9 2.1.3 井田尺寸.9 2.2 矿井工业储量计算.10 2.2.1 储量计算依据.10 2.2.2

14、矿井工业储量.11 2.3 矿井可采储量.11 2.3.1 安全煤柱留设原则.11 2.3.2 矿井永久保护煤柱损失量.11 3 矿井工作制度、设计生产能力及矿井工作制度、设计生产能力及服务年限服务年限.14 3.1 矿井工作制度.14 3.2 矿井设计生产能力及服务年限.14 3.2.1 矿井设计生产能力及服务年限确定依据.14 3.2.2 矿设计生产能力.14 3.2.3 矿井服务年限.14 3.2.4 井型校核.15 4 井田开拓井田开拓.16 4.1 井田开拓的基本问题.16 4.1.1 确定井筒形式、数目、位置及坐标.16 4.1.2 工业场地的位置.18 4.1.3 开采水平的确定

15、.18 4.1.4 井底车场和运输大巷的布置.18 4.1.5 矿井开拓延深及深部开拓方案.19 4.1.6 开采顺序.19 4.1.7 方案比较.19 4.2 矿井基本巷道.28 4.2.1 井筒.28 4.2.2 井底车场及硐室.29 4.2.3 主要开拓巷道.31 4.2.4 巷道支护.32 5 准备方式准备方式带区巷道布置带区巷道布置.38 5.1 煤层地质特征.38 5.1.1 带区位置.38 5.1.2 带区煤层特征.38 5.1.3 煤层顶底板岩石构造情况.38 5.1.4 水文地质.38 5.1.5 地质构造.38 5.1.6 地表情况.38 5.2 带区巷道布置及生产系统.3

16、8 5.2.1 带区准备方式的确定.38 5.2.2 带区巷道布置.39 5.2.3 带区生产系统.40 5.2.4 带区生产能力及采出率.40 5.3 带区车场选型计算.42 5.3.1 带去车场形式.42 5.3.2 带区车场的调车方式.42 5.3.3 带区主要硐室布置.42 6 采煤方法采煤方法.44 6.1 采煤工艺方式.44 6.1.1 带区煤层特征及地质条件.44 6.1.2 确定采煤工艺方式.44 6.1.3 回采工作面参数.44 6.1.4 回采工艺及工作面设备选型.45 6.1.5 采煤工作面支护方式.48 6.1.6 端头支护及超前支护方式.49 6.1.7 各工艺过程注意事项.50 6.1.8 回采工作面正规循环作业.52 6.2 回采巷道布置.53 6.2.1 回采巷道布置方式.53 6.2.2 回采巷道参数.53 7 井下运输井下运输.58 7.1 概述.58 7.1.1 井下运输设计的原始条件与数据.58 7.1.2 运输距离和货载量.58 7.1.3 井下运输系统.58 7.3 大巷运输设备选型.62 7.3.1 运煤设备.62 7.3.2 辅助运输设备