机械5

主要内容和要求： 以实习矿井泉店煤矿条件为基础，完成泉店煤矿0.9Mt/a新井设计。主要内容包括：矿井概况、矿井工作制度及设计生产能力、井田开拓、首采区设计、采煤方法、矿井通风系统、矿井运输提升等。 结合煤矿生产前沿及矿井设计情况，撰写一篇关于对综采放顶煤工作面回采率的论述的专题。完成3000字以上的与采矿有关的科技翻译一篇，题目为“The optimal support i
nte
nsity for coal mi
ne roadway tu
n
nels i
n soft rocks”。 摘要 本设计包括三个部分：一般部分、专题部分和翻译部分。 一般部分为泉店煤矿0.9Mt/a新井设计。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.矿井基本技术经济指标。 泉店煤矿位于许昌市和禹州市之间，西距禹州市21km，东距许昌市16km，交通甚为便利。井田走向长约7km，倾向长约3km，面积约16.6 km2。井田内主采煤层为一层，为二1煤。煤层倾角平均为25°，平均厚度5.88 m。井田地质条件中等。 矿井工业储量为137.28Mt，可采储量为77.34万t。矿井设计生产能力为0.9Mt/a。矿井服务年限61.38a。矿井正常涌水量为1634.39 m3/h，最大涌水量为1931.27 m3/h。矿井相对瓦斯涌出量为1.02 m3/t，属低瓦斯矿井。矿井煤尘有爆炸危险性，煤层无自然发火危险性。 矿井采用立井三水平暗立井延深开拓。一矿一面，采煤方法为走向长壁综合机械化放顶煤开采。全矿采用胶带运输机运煤，助运输采用架线式电机车牵引1t固定箱式矿车运输矸石和材料等。矿井通风方式为两翼对角式。 矿井年工作日为330 d，日净提升时间16h，工作制度为“三八制”。 专题部分题目是对综采放顶煤工作面回采率的论述。论述了我国综放开采回采率现状，研究了综放开采顶煤损失构成和形成机理，系统地分析了综放回采工作面的煤炭损失，并在此基础上，从采煤工艺、设备等方面提出了提高综放回采工作面回收率的有效技术途径及管理方法，以及回采率的计算。翻译部分是一篇关于软岩巷道支护强度与围岩变形关系的，英文题目为“The optimal support i
nte
nsity for coal mi
ne roadway tu
n
nels i
n soft rocks”。 关键词：立井三水平；暗立井延深；采区；放顶煤开采；两翼对角式通风 ABSTRACT This desig
n i
ncludes three parts: the ge
neral part, special subject part a
nd tra
nslatio
n part. The ge
neral part is a
new desig
n of Qua
nDia
n mi
ne. This desig
n i
ncludes te
n chapters: 1.A
n outli
ne of the mi
ne field geology; 2.Bou
ndary a
nd the reserves of mi
ne; 3.The service life a
nd worki
ng system of mi
ne; 4.Developme
nt of mi
ne; 5.The layout of mi
ni
ng area; 6.The method used i
n coal mi
ni
ng; 7. Tra
nsportatio
n of the u
ndergrou
nd; 8.The lifti
ng of the mi
ne; 9. The ve
ntilatio
n a
nd the safety operatio
n of the mi
ne; 10.The basic eco
nomic a
nd tech
nical
norms. Qua
nDia
n mi
ne locates betwee
n the city of YuZhou a
nd XuCha
ng, 21 km away from the city of YuZhou i
n the west, 16km away from the city of XuCha
ni
n the east. A
nd it has co
nve
nie
nce tra
nsportatio
ns. Mi
nefield has a le
ngth of 7 km i
n the south a
nd
north directio
n while a width of 3 km i
n the east a
nd west directio
n o
n average. The total area is Approximately 16.6 km2. The mai
n coal seam i
n the mi
ne is o
nly o
ne, which is the二1coal seam. The average a
ngle is 25 degree, while the thick
ness is about 5.88 m. The mi
nefield geological co
nditio
n is medium. The proved reserves of the mi
nefield are 137.28 millio
n to
ns. The recoverable reserves are 77.34 millio
n to
ns. The desig
ned productive capacity is 0.9 millio
n to
ns per year. The service life is 61.38 years. The
normal flow of the mi
ne is 1634.39 m3 per hour a
nd the max flow of the mi
ne is 1931.27 m3 per hour. The Relative gas discharge qua
ntity is 1.02 m3 per to
n. Thus it is Low gaseous mi
ne. The coal dust of the mi
ne has explosio
n hazard. But the coal seam has
no spo
nta
neous combustio
n. The developme
nt of the mi
ne is three level of vertical shaft,deepe
ni
ng with i
nside vertical Shaft. The
number of the worki
ng faces is o
nly o
ne. Lo
ngwall mi
ni
ng with sublevel cavi
ng is the mi
ni
ng method. Several belt co
nveyers u
ndertake the job of coal tra
nsport i
n the mi
ne, while the xiliary haulage uses the wire layi
ng type electric locomotive to tow the 1 t fixed box-type mi
ne car tra
nsportatio
n ga
ngue a
nd the material a
nd so o
n. The ve
ntilatio
n type is diago
nal ve
ntilatio
n. The worki
ng days i
n a year are 330. Everyday it takes 16 hours i
n lifti
ng the coal. The worki
ng system i
n the mi
ne is “three-eight”.The title of the special subject part is “the dissertatio
n of the Recovery rate to the Fully mecha
nized coal cavi
ng worki
ng face”. This article discusses Prese
nt situatio
n of fully mecha
nized cavi
ng mi
ni
ng recovery rate a
nd the fully mecha
nized cavi
ng mi
ni
ng loss of top coal compositio
n as well as the formatio
n mecha
nism, the
n it puts forward a systematic a
nalysis of the loss of coal cavi
ng mi
ni
ng face, a
nd o
n this basis, it puts forward the proposed effective tech
nical approach a
nd ma
nageme
nt practices to improve the recovery of fully mecha
nized cavi
ng mi
ni
ng face, a
nd the recovery rate calculatio
n relayi
ng o
n coal mi
ni
ng tech
nology, equipme
nt, etc..The tra
nslated academic paper is about the relatio
nship betwee
n support i
nte
nsity a
nd rock deformatio
n of roadway tu
n
nels i
n soft rock. Its title is “The optimal support i
nte
nsity for coal mi
ne roadway tu
n
nels i
n soft rocks”. Keywords: three level of vertical shaft; deepe
ni
ng with vertical Shaft; district; lo
ngwall mi
ni
ng with sublevel cavi
ng ; diago
nal ve
ntilatio 目录 一般部分 1矿区概述及井田地质特征1 1.1矿区概述1 1.1.1地理与地形1 1.1.2矿区开发概况1 1.1.3气候与水文2 1.2井田地质特征2 1.2.1井田地形与地层2 1.3煤层特征9 1.3.1煤层埋藏条件9 1.3.2围岩性质10 1.3.3煤的特征10 2井田境界和储量13 2.1井田境界13 2.2井田储量13 2.2.1矿井地质资源量14 2.2.2矿井工业资源/储量14 2.2.3矿井设计储量15 2.2.4矿井设计可采储量16 3矿井工作制度、设计生产能力及服务年限18 3.1矿井工作制度18 3.2矿井设计生产能力及服务年限18 3.3矿井井型校核18 4井田开拓19 4.1井田开拓的基本问题19 4.1.1确定井筒形式、数目、位置19 4.1.2矿井开拓方案比较22 4.2矿井基本巷道27 4.2.2井底车场及硐室31 4.2.3大巷33 5准备方式——采区巷道布置37 5.1煤层地质特征37 5.1.1采区布置参数37 5.1.2采区煤层特征37 5.1.3煤层顶底板岩石构造情况37 5.1.4水文地质37 5.2采区巷道布置及生产系统37 5.2.1采区巷道布置37 5.2.2采区煤柱38 5.2.3采区生产系统38 5.2.4采区内巷道掘进方法39 5.2.5采区生产能力及采出率39 5.3采区车场选型设计40 5.3.1采区下部车场40 5.3.2采区上部车场41 5.3.3采区中部车场41 6采煤方法42 6.1采煤工艺方式42 6.1.1采煤方法的选择42 6.1.2工作面的推进方向和推进度43 6.1.3综采工作面的设备选型及配套43 6.1.4回采工作面破煤、装煤方式44 6.1.5回采工作面支护方式48 6.1.6端头支护及超前支护方式52 6.1.7各工艺过程注意事项53 6.1.7回采工作面正规循环作业53 6.2回采巷道布置58 6.2.1布置方式58 6.2.2回采巷道参数58 7井下运输61 7.1概述61 7.1.1井下运输的原始条件和数据61 7.1.3运输距离和货载量61 7.1.2井下运输系统61 7.2采区运输设备选择61 7.2.1设备选型原则： 61 7.2.2采区运输设备选型及能力验算62 7.3大巷运输方式和设备选择62 7.3.1辅助运输大巷设备选择62 7.3.2运输设备能力验算64 8矿井提升65 8.1矿井提升概述65 8.2主副井提升65 8.2.1主井提升设备选型65 8.2.2副井提升68 9矿井通风及安全70 9.1矿井通风系统选择70 9.1.1矿井概况70 9.1.2矿井通风系统的基本要求70 9.1.3矿井通风方式的确定70 9.1.4主要通风机工作方式选择71 9.1.5采区通风系统的要求72 9.1.6工作面通风方式的选择72 9.1.7回采工作面进回风巷道的布置73 9.1.8通风容易时期与困难时期73 9.2采区及全矿所需风量73 9.2.1采煤工作面及矿井实际需要风量73 9.2.2掘进工作面需风量75 9.2.3硐室需风量76 9.2.4矿井总风量计算76 9.2.5风量分配76 9.3矿井通风总阻力计算78 9.3.1矿井通风总阻力计算原则78 9.3.2确定矿井通风容易和困难时期78 9.3.3矿井最大阻力路线78 9.3.4矿井通风阻力计算80 9.3.5矿井通风总阻力82 9.3.6两个时期的矿井总风阻和总等积孔82 9.5选择矿井通风设备83 9.6安全灾害的预防措施86 9.6.1瓦斯管理措施86 9.6.2预防井下火灾的措施86 9.6.3防水措施87 10设计矿井基本技术经济指标88 参考文献89 专题部分 对综采放顶煤工作面回采率的论述90 一、引言90 二、放顶煤工作面回采率的计算90 三、综放开采工作面煤炭损失分析及其特点91 四、提高综放回采工作面回采率的途径与措施95 五、结束语102 翻译部分 英文原文105 中文翻译113 致谢119