大屯姚桥矿1.80Mta新井设计.docx

1、 第IX页摘 要本设计包括三个部分：一般部分、专题部分和翻译部分。一般部分为大屯姚桥矿1.80 Mt/a新井设计。大屯姚桥矿座落在江苏省沛县和山东省微山县境内，区内铁路交通方便。井田走向长度约8.82 km，倾向长度约3.51 km，面积约31 km2。主采煤层为7号煤层，平均倾角为10，平均厚度为4.86 m。井田工业储量为210.85 Mt，可采储量为145.97 Mt，矿井服务年限为62.4 a。矿井正常涌水量为508 m3/h，最大涌水量为609 m3/h。矿井绝对瓦斯涌出量为3.73 m3/min，属于低瓦斯矿井。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

2、带区式开采，立井直接延深；方案二：立井两水平开拓带区式开采，暗斜井延深；方案三：立井两水平开拓采区式开采，立井直接延深；方案四：立井两水平开拓带区式开采，立井直接延深（工业广场在井田边界）。通过技术经济比较，最终确定方案一为最优方案。一水平标高-600 m，二水平标高-850 m。设计首采区采用采区准备方式，工作面长度210 m，采用大采高一次采全厚综采工艺，矿井年工作日为330 d，工作制度为“三八制”。大巷采用胶带输送机运煤，辅助运输采用矿车运输。矿井通风方式为两翼对角式。专题部分题目是深井软岩巷道支护技术浅析。翻译部分题目是长壁放顶煤的压力分析。关键词：大屯姚桥矿；立井；采区布置；综采大

3、采高；两翼对角式；沿空巷道ABSTRACTThis design can be divided into three sections: general design, monographic study and translation of an academic paper.The general design is about a 1.80 Mt/a new underground mine design of Datun Yaoqiao coal mine. Datun Yaoqiao coal mine lies in Peixian, Jiangsu province and We

4、ishan, Shandong province, the traffic is convenient.Its about 8.82 km on the strike and 3.51 km on the dip, with the 31 km2 total horizontal area.The minable coal seam is 7 with an average thickness of 4.86 m and an average dip of 10.The proved reserves of this coal mine are 210.85 Mt and the minabl

5、e reserves are 145.97 Mt, with a mine life of 62.4 a. The normal mine inflow is 508 m3/h and the maximum mine inflow is 609 m3/h. The mine gas emission rate is 3.73 m3/min which belongs to low gas mine. Based on the geological conditions of the mine, I bring forward four available projects in techno

6、logy.The first is vertical shaft development with two mining levels and the extension of blind vertical shaft; the second is vertical shaft development with two mining levels and the extension of inclined shaft; the third is vertical shaft development with two mining levels and the extension of blin

7、d vertical shaft with ganel type minning; the last is vertical shaft development with two mining levels and the extension of vertical shaft and the industry square in the field boundaries. The first project is the best comparing with other three projects in technology and economy.The first level is

8、at -600 m.The second level is at -850 m.Designed first mining district makes use of the method of the mining district preparation.The length of working face is 210 m, The working face apply fully-mechanized long-wall full-height coal caving method. The working system is “three-eight” which produces

9、330 d/a.Main roadway makes use of belt conveyor to transport coal resource, and mine car to be assistant transport. The type of mine ventilation system is two wings diagonal ventilation.The monographic study is the excavation project on coal and gas outburst prevention and control technology researc

10、h and application。The translated academic paper is Stress analysis of longwall top coal caving.Keywords: Datun Yaoqiaoi coal; vertical shaft; mining district preparation; full-height coal caving ; two wings diagonal ventilation; gob-side entry 目 录一般部分1 矿区概述及井田地质特征11.1矿区概述11.1.1交通位置11.1.2地形、地貌和水文情况11

11、.1.3矿区的气候条件11.1.4地震31.1.5矿区电力供应31.1.6矿区经济状况31.2井田地质特征31.2.1井田地质构造31.2.2地层31.2.3煤系及煤层51.2.4井田的水文地质特征51.3煤层特征61.3.1煤层特征61.3.2煤层顶、底板61.3.3煤质61.3.4瓦斯71.3.5煤尘71.3.6煤的自燃71.3.7地温72 井田境界和储量82.1井田境界82.1.1井田境界划分的原则82.1.2 开采界限82.1.3井田尺寸82.2矿井工业储量82.2.1储量计算基础82.2.2井田地质勘探82.2.3工业资源/储量92. 3矿井可采储量112. 3.1安全煤柱留设原则1

12、12. 3.2矿井永久保护煤柱损失量113 矿井工作制度、设计生产能力及服务年限143.1矿井工作制度143.1矿井设计生产能力及服务年限143.2.1矿井设计生产能力确定依据143.2.2矿井设计生产能力的确定143.2.3矿井服务年限153.2.4 井型校核154 井田开拓164.1矿井开拓的基本问题164.1.1井筒形式，数目，位置及坐标确定164.1.2工业广场位置、形状及面积确定174.1.3开采水平的确定174.1.4主要开拓巷道174.1.5方案比较184.2矿井基本巷道264.2.1井筒264.2.2井底车场及硐室294.2.3主要开拓巷道315 准备方式采区巷道布置355.1

13、煤层地质特征355.1.1采区位置355.1.2采区煤层特征355.1.3煤层顶底板岩石构造情况355.1.4水文地质355.1.5地质构造355.1.6地表情况355.2采区巷道布置及生产系统355.2.1采区位置及范围355.2.2采煤方法及首采工作面长度的确定365.2.3煤柱尺寸的确定365.2.4确定采区各种巷道的尺寸、支护方式365.2.5采区巷道的联络方式365.2.6采区接替顺序365.2.7采区生产系统365.2.8采区内巷道掘进方法375.2.9采区生产能力及采出率385.3采区车场选型设计396 采煤方法406.1 采煤工艺方式406.1.1采区煤层特征及地质条件406.

14、1.2确定采煤工艺方式406.1.3回采工作面参数416.1.4综采工作面的设备选型及配套416.1.5回采工艺456.1.6回采工作面支护方式466.1.7工作面端头支护和超前支护486.1.8各工艺过程注意事项496.1.9循环图表、劳动组织、主要技术经济指标506.2回采巷道布置536.2.1回采巷道布置方式536.2.2回采巷道参数537 井下运输567.1概述567.1.1井下运输设计的原始条件和数据567.1.2运输距离和货载量567.1.3矿井运输系统567.2采区运输设备选择577.2.1设备选型原则577.2.2采区运输设备的选型及能力验算577.3大巷运输设备选597.3.

15、1运输大巷设备选择597.3.2轨道大巷设备选择598 矿井提升618.1概述618.2主副井提升618.2.1主井提升618.2.2副井提升639 矿井通风及安全569.1矿井地质、开拓、开采概况669.1.1矿井地质概况669.1.2开拓方式669.1.3开采方法669.1.4变电所、充电硐室、火药库669.1.5工作制、人数669.2矿井通风系统的确定669.2.1矿井通风系统的基本要求669.2.2矿井通风方式的选择679.2.3矿井通风方法的选择679.2.4采区通风系统的要求689.2.5工作面通风方式的确定689.2.6回采工作面进回风巷道的布置699.3矿井风量计算699.3.1矿井风量计算方法概述699.3.2回采工作面风量计算709.3.3掘进工作面风量计算719.3.4硐室需要风量的计算729