北京岩溶水资源勘查评价项目工程监理

以"北京市岩溶水资源勘查评价工程"项目工程监理为例,通过岩溶水勘查施工监理与建筑工程、市政及水利水电、石油钻井等项目监理工作进行对比分析,针对岩溶水勘查施工监理工作特点,结合以往监理经验,提出了岩溶水勘查施工项目监理与工程控制内容及注意事项,确保了北京岩溶水资源勘查评价项目钻探施工监理工作的顺利实施,为该类项目监理及工程控制提供思路和借鉴。     

我国地质勘查行业“产能”分析

2001~2014年,我国地质勘查投入9841亿元,主要矿产查明资源储量持续增长,地质找矿取得了明显的成效,地质勘查行业蓬勃发展。与此同时,产生了地质勘查投资渠道单一、队伍结构不合理,地质勘查行业市场化程度低和"产能过剩"等问题。建议采取转变理念,将地质工作要与区域经济发展相结合,地质勘查队伍"产能"转移等措施促进地勘行业健康发展。     

湖北省地质勘查“十三五”规划基本思路初步形成

<正>湖北省"十二五"地质勘查取得较大进展和成效:重要矿产资源储量持续增长,基础地质工作程度进一步提高,地质工作信息化建设取得新进展,地质勘查能力有所提高。但随着中国经济发展进入新常态,地质勘查工作经历"黄金十年"之后进入了结构调整和转型发展期。近期,湖北省国土资源厅地质勘查处研究分析新常态下面临的新形势与新     

煤层气资源勘查布井技术研究与实践

井位部署的合理性直接决定着煤层气资源勘查及后续开发工作的成败。基于煤矿区煤层气资源勘查工作的特点,探讨了勘查井井位部署的原则与方法,并结合红阳煤田徐往子井田煤层气资源预探优化布井实例,提出了先圈定"单因素有利区",进而通过"叠合法"圈定"多因素综合靶区",最终根据靶区地面情况确定勘查井井位的优化布井流程。     

青海省推进绿色勘查

<正>"2016年,我省通过10个绿色勘查示范项目的实施,使绿色勘查理念深入人心,绿色勘查制度规范有了雏形,尤其是青海省有色地勘局的绿色勘查工作走在了全国前列,为全省的绿色勘查工作提供了经验和示范。"在近日举行的青海省2016年绿色勘查工作研讨会上,青海省国土资源厅副厅长李志勇在盘点1 a来的全省绿色勘查工作时如是说。     

新疆煤层气勘查开发现状及问题思考

本文对新疆煤层气勘查开发现状进行了总结,分析得出了勘查开发工作中存在的问题和优势,并结合新疆资源条件和开发实际,提出了新疆煤层气勘查开发应遵循"政府主导、企业主体、财政支持、政策保障"的建议。     

浅覆盖区应用机动浅钻地球化学勘查方法技术过验收

不久前,由中国地质科学院地球物理地球化学勘查研究所(物化探所)承担、北京探矿工程研究所参与完成的"应用机动浅钻的地球化学勘查方法技术研究"项目成果通过专家验收,被评定为优秀级。该项目解决了困扰浅覆盖区化探工作多年的取样技术和疏松层多套钻进工艺两大技术难题,提出了浅覆盖区应用机动浅钻地球化学勘查技术方法,并进行了矿区试验示范工作,将为我国150多万平方公里浅覆盖区的地球化学勘查工作提供有力的方法技术支撑。     

新时期我国绿色勘查典型实践与技术应用研究

随着社会的发展,国家对生态文明建设愈发重视,绿色勘查是"绿水青山就是金山银山"理念在地质勘查工作中的生动实践。本文在收集和总结国内外绿色勘查技术方法及经验的基础上,跟踪调查新时期我国绿色勘查典型实践工作进展,分析我国地质找矿工作中存在的主要问题,提出新时代推进我国绿色勘查工作的建议,推进我国地质勘查行业的绿色可持续发展。     

煤炭生态地质勘查基本构架与科学问题

基于煤盆地矿产资源与生态环境地质特征,以实现煤盆地多资源协同勘查开发与资源开发中生态环境和谐为目标,提出了煤炭生态地质勘查的理念与基本构架。煤炭生态地质勘查是指以煤炭地质基础理论和生态学理论为指导,针对煤盆地呈固、液、气、元素"四态"赋存的矿产资源、地表及地下空间关键层位、生态环境与其他自然资源,采用空、天、地一体化的多种勘查技术,涵盖资源勘查、开发地质保障、资源开发与环境保护、资源综合利用、生态修复与生态系统重构并贯穿于煤炭资源勘查开发到矿山闭坑全过程的相关地质与生态勘查工作。煤炭生态地质勘查是今后煤炭地质勘查工作的重要发展方向,核心理念是生态保护优先。基于煤炭生态地质勘查理念,以煤系矿产资源和水资源、地质关键层以及生态环境保护、监测、修复相关的主要地理要素、地质信息为对象,建立了煤炭生态地质勘查基本架构,分析了煤炭地质勘查工作向资源保障和环境保护与生态建设相结合的生态地质勘查方向转变的紧迫性。研究认为:煤炭生态地质勘查要统筹好资源保障与生态环境的关系,超前规划布局,优选遥感、快速精准钻探、高精度地球物理勘探等绿色勘查技术"空天地一体化"协同应用。根据煤盆地资源赋存特征选用煤与多种矿产资源的双目标、三目标、四目标、多目标协同勘查模式,同时在资源勘查、资源开采、采后修复全过程中注重地质关键层和生态环境信息的变化,实施环境保护与生态修复措施,并通过地质大数据分析技术,集成多维数据展示勘查成果,实现对煤系多种矿产资源、生态环境地质信息、开发地质条件的透明化、数字化。     

论煤炭地质钻探施工质量控制中的监理工作

在煤炭地质勘查监理的工作目标是"三个控制、二个管理、一个协调",质量控制是监理工作的核心。结合煤炭地质勘查行业的现状及钻探施工中存在的问题,探讨做好煤炭地质勘查质量监控的措施及方法。     

Current situation and future trend of China rare earth luminescent material industry

<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth     

China rare earth market review

正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy     

Market opportunities and challenges for rare earth polishing powder

正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared     

Market and recycling of NiMH battery

<正>Market status and future trend of NiMH battery1.Global market of small NiMH battery Global market size of small NiMH batteries declined year on year since 2011.The trend will continue to 2018,at the rate of 5%to 10%annually.Demand for small NiMH batteries will be stable gradually.Many electrical apparatuses are powered by the built-in lithium battery today,which is the main reason for the shrunk market of small NiMH batteries.But,for some products,small NiMH     

China rare earth market review

正September 1-10,2014 Affected by the National Day holiday,rare earth transaction was stagnant and the market showed a weak steady state.As there was no good news for downstream market,some products with flat demand would likely rally slightly for some time to     

2014 second batch of rare earth quota released

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矿用防爆轴流对旋主要通风机叶片ANSYS模态分析及应用

高效节能矿用防爆对旋主要通风机的叶片是主要通风机运行的关键部件,叶片在运行时不断受到气流的作用力,从而使叶片产生振动,当叶片振动的频率与叶片的固有频率接近时,容易产生共振从而导致叶片的断裂。一旦叶片断裂时,对主要通风机的安全运行产生致命的影响,从而导致矿山、化工等企业发生重大事故,将会产生不可估量的损失。基于有限元分析软件ANSYS,对高效节能矿用防爆轴流对旋主要通风机叶片进行模态分析及产生对应的六阶模态频率,对主要通风机叶片的运行频率、固有频率及产生的共振问题进行了原理分析,并且解决了叶片频率共振的问题,从而为主要通风机叶片结构设计提供理论依据,并对主要通风机叶片的安全运行提供保障。     

2013 NdFeB export analysis

<正>China totally exported nearly 24,000 tonsof NdFeB products during 201 3,including 18,825 tons of permanent magnet,valued USD 1.34 billion at an average price of 71.4 USD/kg;3,277 tons of NdFeB magnetic powder,valued USD 1 01 million at an average price of 30.9 USD/kg;1,334 tons of strip casting ribbon,with total export value of USD 74million at an average price of 55.3 USD/kg;and 586