简介:摘要:体验式实操培训是近几年在国内兴起的高效培训形式 ,新疆自治区应急厅在国家大背景下准备兴建自治区安全应急实训基地 ,其中矿山部分要尽量模拟现场实际环境 ,使学员身临其境 ,因此 ,在设计时基于“采矿环境再造连续采矿嗣后充填采矿法” ,提出了构筑“人工矿柱”来实现模拟新疆自治区安全应急实训基地地下矿山废石注浆充填采矿技术 ,并开展了“人工矿柱”半工业试验 ,根据实际采空区的尺寸按比例缩小在地下模拟巷道内设计了 (4m×5m×8m)模拟采空区 ,包括地表充填料调查 (废石粒级分级 )、水灰比配比的选择试验、骨料配比试验、静荷载试验、地质雷达测试、声波测试、块体基础震动试验、现场大型直剪试验。通过采矿环境再造构筑“人工矿柱”半工业试验及采用 SIR-3000地质雷达、 900MHz天线与 RS-UT01声波仪对其进行检测 ,重点分析了地质雷达和声波仪测试结果 ,并进行对比分析 ,得到了利用注浆技术构筑人工矿柱技术与工艺具有可行性 ,能够达到设计要求的结论 ,为井下进行充填采矿提供了科学依据。
简介:“中国气象应用网格”是国家863重大专项支持的一个应用网格项目,主要针对中国气象局计算资源及科研人员分散在全国各地,气象预报面向政府、社会和公众服务的特点,建立了连接中国气象局行业内部和国防科技大学等单位在内的跨地域网格平台;在该网格平台上建立全面支持我国新一代中尺度数值天气预报系统的协同攻关环境和基于GRAPES的中尺度有限区数值天气预报业务系统,实现了应用层面的互联互通、资源共享和协同工作,提高气象部门的资源利用率、业务预报和自动化水平。“中国气象应用网格”包括网格中尺度数值预报模式GRAPES、网格门户、网格计算、资源和服务共享平台、基于Ganglia的网格资源监控、数值天气预报控制界面、气象预报产品发布和可视化、源代码管理系统、网格用户注册与管理等系统。
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简介:Glacierinventorycompilationduringthepast20yearsandmodificationsofthatfortheEasternPamirandBanggongLakeindicatethatthereare46,342modernglacierswithatotalareaandvolumeof59415km2and5601km3respectivelyinChina.Theseglacierscanbeclassifiedintomaritimeandcontinental(includingsub-continentalandextremelycontinental)types.ResearchesshowthatglaciersinChinahavebeenretreatingsincetheLittleIceAgeandthemasswastagewasacceleratedduringthepast30to40years.BeinganimportantpartofglaciologicalstudiesinChina,icecoreclimaticandenvironmentalstudiesonTibetanPlateauandintheAntarcticahaveprovidedabundant,highresolutioninformationaboutpastclimaticandenvironmentalevolutionovertheTibetanPlateauandAntarctica.ExceptfordifferentparametersrecordedinicecoresrelatingtoclimateandenvironmentchangesonTibetanPlateau,recordsfromicecoresextractedfromdifferentglaciersshowthatthediscrepanciesinclimaticandenvironmentalchangesonthenorthandsouthpartsoftheplateaumaybetheconsequenceofdifferentinfluencingeffectsfromterrestrialandsolarsources.GlaciologicalandmeteorologicalphenomenaimplythatLambertGlaciervalleyisanimportantboundaryofclimateintheeastAntarctica,whichisthoughttobeconnectedwithcyclonicactivitiesandCircum-polarWavesovertheAntarctica.