张双楼矿的矿井设计

河北理工大学毕业设计摘要I摘要本设计为张双楼矿1.8Mt/a的矿井设计。井田走向（东西）长平均约8.23km，倾向（南北）长平均约3.88km，井田水平面积为31.93km2。主采煤层一层，即7号煤层，平均倾角8.9°，厚约5.0m。井田工业储量为226.69Mt，可采储量172.53Mt，矿井服务年限为73.7a。矿井正常涌水量为320m3/h，最大涌水量为340m3/h；矿井绝对瓦斯涌出量为1.84m3/min，属低瓦斯矿井；煤层有自燃发火倾向，发火期3~6个月，煤尘具有爆炸危险性。开拓方案为立井两水平开采，暗斜井延深至-700m水平。大巷采用胶带输送机运煤，辅助运输采用1.5t固定箱式矿车。设计首采区采用采区准备方式，采用一次采全高采煤法，全部跨落法处理采空区。矿井采用中央并列式通风。通风容易时期矿井总需风量4608m3/min，矿井通风总阻力2096Pa，风阻0.35N·s2/m8，等积孔2.03m2，矿井通风容易。矿井通风困难时期矿井总风量4608m3/min，矿井通风总阻力2746Pa，风阻0.46N·s2/m8，等积孔1.77m2，矿井通风中等困难。关键词：立井；上下山开采；大采高；中央并列式河北理工大学毕业设计摘要IIABSTRACTThegeneraldesignisabouta1.8Mt/aundergroundminedesignofZhangshuangloucoalmine.It’sabout8.23kmonthestrikeand3.88kmonthedip,withthe31.93km2totalhorizontalarea.Theminablecoalseamofthismineisonly7withanaveragethicknessof5.0mandanaveragedipof8.9°.Theprovedreservesofthiscoalmineare226.69Mtandtheminablereservesare172.53Mt,withaminelifeof73.7a.Thegeologicalconditionofthemineisrelativelysimple.Thenormalmineinflowis320m3/handthemaximummineinflowis340m3/h.Itisbituminouscoal44withlowminegasemissionrateandcoalspontaneouscombustiontendency,andit’sacoalseamliabletoexplosion.Theavailableprojectisverticalshaftdevelopmentwithtwomininglevelsandtheextensionofinclinedshaftgoto-700m.Mainroadwaymakesuseofbeltconveyortotransportcoalresource,andminecartobeassistanttransport.Designedfirstminingdistrictmakesuseofthemethodofpreparationinminingarea,whichusesfully-mechanizedcoalminingtechnology,andfullycavingmethodtodealwithgoaf.Thewayofmineventilationiscentralizedjuxtaposeventilation.Attheeasytimeofmineventilation,thetotalairquantityis4608m3perminute,thetotalmineventilationresistanceis2096Pa,thecoefficientofresistanceis0.355N·s2/m8,equivalentorificeis2.03m2.Atthedifficulttimeofmineventilation,thetotalairquantityisabout4608m3perminute,thetotalmineventilationresistanceis2746Pa,thecoefficientofresistanceis0.465N·s2/m8,equivalentorificeis1.77m2.Keywords：shaft;up-dipanddown-dipminging;largeminingheight;centralizedjuxtaposeventilation.河北理工大学毕业设计目录III目录第1章矿区概述及井田地质特征.......................................................................................................................1第1节矿区概述...............................................................................................................................................1第2节井田地质特征.......................................................................................................................................2第3节煤层特征...............................................................................................................................................4第2章井田境界和储量.......................................................................................................................................7第1节井田境界...............................................................................................................................................7第2节井田工业储量.......................................................................................................................................7第3节井田可采储量.......................................................................................................................................8第3章矿井生产能力、服务年限及工作制度.................................................................................................14第1节矿井设计生产能力及服务年限.........................................................................................................14第2节矿井工作制度.....................................................................................................................................15第4章井田开拓.................................................................................................................................................16第1节概述.....................................................................................................................................................16第2节井筒位置的确定.................................................................................................................................16第3节开采水平的设计及划分.....................................................................................................................17第5节井底车场.............................................................................................................................................18第6节开拓系统的综述.................................................................................................................................23第7节矿井基本巷道.....................................................................................................................................30第5章采煤方法和采区巷道布置.....................................................................................................................38第1节煤层地质特征.....................................................................................................................................38第2节采煤方法和回采工艺.........................................................................................................................38第3节采区巷道和生产系统................................