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1.
根据济宁市露天矿山开发利用现状,以及矿山开采引发的环境地质问题,按照资源开发与环境保护相协调的原则,对其进行了现状评估,同时,结合济宁实际情况,针对新建矿山、生产矿山和闭坑矿山,提出相应的矿山地质环境保护与恢复治理措施。 相似文献
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矿山由通化县远程矿业有限责任公司开发,由于矿山生产对周边地质环境造成危害,需对矿山活动引发或加剧的地质环境问题及其影响做出现状评估和预测评估,提出矿山地质环境保护与治理恢复方案。 相似文献
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目前四川省矿山地质环境问题日益突出，做好矿山地质环境保护与治理工作，是当务之急。本文分析了四川省矿山地质环境现状，并对下步工作目标措施进行了一些有益探索，希望能引起社会各界对四川省地质环境保护与治理工作的重视。 相似文献
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桐梓县矿山主要环境地质问题及防治对策 总被引：1，自引：0，他引：1
桐梓县矿业开发引起的矿山环境地质问题种类较多,主要为矿山地质灾害对土地、植被及地貌景观的占用与破坏,对地下水均衡的破坏,及矿山废水、固体废弃物排放对水环境的污染等几种。通过对矿区矿山地质环境的现状评估分区及其保护、治理分区,提出了矿山地质环境保护与治理的防治措施。 相似文献
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矿山地质环境保护与治理恢复方案编制是矿产资源开发和矿山地质环境保护的关键工作。总结矿山地质环境保护与治理恢复方案编制的工作经验,对方案编制前期需要准备的工作,资料收集、现场踏勘和地质环境调查等具体内容进行了说明。根据常见的矿山地质环境问题,提出了治理防护的内容、方法和具体工程。以房山区大安山煤矿的矿山地质环境保护与治理恢复方案为例,进行了初步分析。 相似文献
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矿山正常的生产经营活动势必形成一定的矿山地质环境问题。为全面贯彻生态文明思想,牢固树立“绿水青山就是金山银山”的理念,按照恢复生态、兼顾景观总体要求,因地制宜、多措并举,扎实开展废弃露天矿山地质环境修复。依据矿山地质环境保护与恢复的相关规范与要求,以汶川某废弃露天矿山为例,从矿山环境角度介绍了矿山地质环境的影响因素,开展矿山斜坡整体稳定性、采场边坡稳定性、弃渣堆稳定性及地形地貌景观破坏等地质环境影响评价,划分治理重点、次重点和一般3个基本的矿山地质环境保护与恢复防治区。结果表明: 矿山斜坡及弃渣堆现状基本稳定、采场边坡稳定性较差、地形地貌景观影响和破坏程度中等; 研究区矿山地质环境保护与恢复治理可划分为一般防治区和较严重防治区,其中一般防治区面积约554 m2(矿区无因采矿活动诱发的地质灾害,影响区内无居民居住,无威胁对象,矿区及周围地表水体未漏失,矿业活动对水土环境影响程度为影响程度小,未影响到矿区及周围生活供水)、较严重防治区面积186 m2(矿区与影响区地质灾害发生可能性小,地形地貌景观影响和破坏程度较严重)。针对评价结果提出的“坡面浮石清理+清除建筑垃圾、块石+植被重建”等修复建议,为同类型矿山绿色开采及地质环境保护措施提供了的重要技术参考依据。 相似文献
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矿山地质环境调查研究现状及展望 总被引：20，自引：3，他引：17
矿产资源开发引发的矿山环境地质问题正成为影响矿山正常生产和人居生态环境安全的重要因素,为了实现资源开发与环境保护并重的绿色矿业目标,需要在合理开发利用矿产资源的同时,最大程度地减少、减轻矿业开发对矿山地质环境的负面影响。依据8年来矿山地质环境调查研究工作的经验和体会,简述了矿山环境地质的兴起与发展、研究意义和方法、现状与进展,提出了今后矿山环境地质研究的主要方向和内容,旨在推动矿山环境地质研究工作的同时,推进矿山地质环境保护工作。 相似文献
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为摸清矿山地质环境现状,编制矿山地质环境整治规划,全面实施矿山地质环境恢复治理工程,积极探索矿山环境保护工作的新思路,日前,江苏省赣榆县全面开展全县矿山地质环境现状调查。 相似文献
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随着矿业经济发展由“资源开发”向“资源开发与环境保护并重”的转变,矿山地质环境保护与治理已成为生态省建设的主要内容之一。因此,合理划定矿山地质环境保护与治理区域,对改善生态环境意义重大。本文以江苏矿山地质环境调查成果为基础,基于矿山地质环境的自然属性和社会属性,建立了由2个目标层、5个约束层和12个指标层构成的江苏矿山地质环境区划评价指标体系。在MAPGIS技术支持下,采用综合指数模型,将各区划因子按其权重进行空间代数叠加,根据叠加的结果并结合矿山开采现状,将关闭矿区划定为矿山地质环境重点治理区和一般治理区;将开采矿区划定为矿山地质环境重点防治区和一般防治区。 相似文献
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W. C. Rember T. W. Erdman M. L. Hoffmann V. E. Chamberlain K. F. Sprenke 《Environmental Geology》1993,22(3):242-245
For over a century Medicine Lake in northern Idaho has received heavy-metal-laden tailings from the Coeur d'Alene mining district. Establishing the depositional chronology of the lake bottom sediments provides information on the source and rate of deposition of the tailings. Cesium-137, an isotope produced in the atmosphere by nuclear bomb tests, was virtually absent in the environment prior to 1951, but reached its apex in 1964. Our analysis of cesium-137 in the sediments of Medicine Lake revealed that 14 cm of fine-grained tailings were deposited in the lake from 1951 to 1964 and tailing deposition downstream was greatly reduced by the installation of tailings dams in the district in 1968. Cesium-137 analysis is accomplished by a fairly simple gamma-ray counting technique and should be a valuable tool for analyzing sedimentation in any lacustrine environment that was active during the 1950s and 1960s. 相似文献
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Dawei Lv Jitao Chen Zengxue Li Guiqiang Zheng Cuiyu Song Haiyan Liu Yanru Meng Dongdong Wang 《Resource Geology》2014,64(4):332-345
The Huanghebei Coalfield, one of the coal production bases in North China, was considered as a coalfield without coal‐bed methane (CBM) during past decades. In recent years, however, CBM has been discovered in coal‐bearing successions. In order to understand the CBM geological characteristics and accumulation process in this area, fifteen coal samples were collected and analyzed with respect to coal maceral and reflectance. The result shows that the gas distribution is uneven and the content varies in different areas even for the same coal bed. The storage of CBM is affected by geological factors such as burial depth, geological structures, and magmatic intrusion, among which the former two are more important in the formation of CBM. Deep burial of coal beds with the presence of cap‐rock mudstone can seal CBM. The CBM is also accumulated and preserved at the place where normal faults are distributed. Magmatic intrusion causes contact metamorphism and controls the CBM formation by heating the coal‐bearing successions. The obtained data indicate the geological conditions in northeastern Zhaoguan Mine are preferable for CBM formation and conservation; recent exploration estimates the CBM geological reserves up to 282.16 Mm3 and average of reserve abundance at 0.1662 × 108 m3 km?2. The Changqing Mine is a potential prospect in terms of CBM exploration since its geological conditions (structures and burial depth) are similar to the Zhaoguan Mine and its cap rock is even better. 相似文献
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Toxic metal contamination in the lateral lakes of the Coeur d'Alene River valley, Idaho 总被引：3，自引：0，他引：3
K.F. Sprenke W.C. Rember S.F. Bender M.L. Hoffmann F. Rabbi V.E. Chamberlain 《Environmental Geology》2000,39(6):575-586
The 11 lateral lakes of Coeur d'Alene River valley in northern Idaho have received heavy metal contamination from over a
century of upstream mining. The lateral lakes lie within the flood plain of the Coeur d'Alene River, and in their bottom sediments
is preserved a stratigraphic record of the upstream mining operations. To characterize the contaminated sediments in the lateral
lakes, sampling techniques, including the Livingston piston corer and the Huttenen freeze box, have been developed by Quaternary
geologists to preserve the vertical stratigraphy in the samples. From 26 cm to over 55 cm of undisturbed tailing sediments,
commonly with “varve-like” features, have been found in each of the lateral lakes, with maximum concentrations by weight of
lead at 3.8%, zinc at 3.4%, arsenic at 340 mg/kg, cadmium at 120 mg/kg and mercury at 7 mg/kg. The contamination in the lakes
appears to be restricted to the shallow subsurface and heavy metal concentrations generally drop to background levels within
a meter of depth.
Received: 22 May 1998 · Accepted: 21 September 1998 相似文献
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The paper describes the hydrogeological problems linked to the rehabilitation and re-utilisation of the water resources of the mining area of Gavorrano (Tuscany, Italy). It shows how the geological settings of the area control the water quality, chemistry and discharge. The results of the studies and the recent situations concerning circulation, quality and discharge of the mine water are reported, with particular reference to the effects of the controlled water rebound and the complex measures necessary for the dewatering stoppage. Water rebound is analysed on the basis of available historical and recent data for its hydrodynamic influence and the consequences on water resources restoration. Different uses and possible actions are proposed, taking into account thermal, chemical and discharge characteristics as well as local planning objectives. 相似文献
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The impact of disposal and treatment of coal mining wastes on environment and farmland 总被引：9，自引：0，他引：9
Zhengfu Bian Jihong Dong Shaogang Lei Hailong Leng Shouguo Mu Hui Wang 《Environmental Geology》2009,58(3):625-634
In China, coal mining wastes have traditionally been dumped in cone-shaped heaps that have the potential to pollute air, soil
and water environments and landscapes through dust generation, leachate production, self-ignition and as a consequence of
an absence of vegetation cover. Since 1980s, the disposal technique for coal mining wastes has been changing and in many instances
the wastes are now transported directly to subsided land as a fill to enable the reuse of that land. Thus, today, both coal
mining waste dumps from the past and filled subsided lands are in existence. However, the comparative impacts of these different
disposal techniques on the environment and farmland productivity have not been studied in detail. Using Dongtan (DT), Nantun
(NT) and Xinglongzhuang (XLZ) coal mines as examples, the components of coal mining wastes and their potential pollution contribution
to soil, surface water and ground water are tested in-situ. The results show that contaminants are released after self-ignition
and weathering of coal mining wastes, but they are not above the allowable environmental standards. However, despite these
findings, more and closer attention needs to be paid to the mobility, transportation and accumulation of these contaminants
in the environment over time. 相似文献
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酸性矿山废水处理技术及其进展 总被引：2，自引：0，他引：2
向武 《地质灾害与环境保护》1998,9(2):38-40
论述酸性矿山废水（ＡＭＤ）的处理方法及几种较新的ＡＭＤ处理技术。阐明酸性矿山废水的危害及传统的碱中和法和不足,指责发展新型ＡＭＤ处理技术是解决酸性矿山废水对环境危害的重要环节。 相似文献
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摘要：随着我国人口、资源、环境的协调发展,后矿业时代已经到来,如何恢复矿区原有的自然生态环境是我国矿山环境治理的重要内容,也是摆在北京市所有闭坑矿山面前的重要课题。本文以怀柔圆金梦矿山公园申报建设为例,阐述了怀柔崎峰茶金矿山闭坑后深度挖掘矿区资源潜力,改造废弃设施,实现产业平稳转型的成功经验。从而得出了闭坑矿山在后矿业时代可持续发展的思路,即多渠道筹措资金,恢复治理矿山环境——整合矿区资源,寻求替代产业——打造品牌,实现可持续发展。本文作者参与了怀柔圆金梦矿山公园的申建工作,并对新建矿山提出了几点启示。 相似文献
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Sulfur-isotope (34S) values and weight (%) of acid-volatile sulfur (AVS), chrome-reducible sulfide (CRS), elemental sulfur (ES), and acid-soluble sulfates were determined in Balya Mine ore rock, mine wastes, and Kocacay River and Lake Manyas sediments. Estimation of isotopic fractionation (34S) between product sulfate and initial CRS (pyrite) was used to evaluate the progress of sulfide oxidation in the mine-waste area. Water- and acid-soluble sulfate produced from different mine-waste samples, such as metallurgical waste (MW) and waste rock (WR), in laboratory experiments also shows distinct 34S values and allows identification of the acid-mine-drainage sources in the mine-waste area. Average 34SSO4values are –1.43 for MW (n=4) and +2.06 for WR (n=8). Short (24 hr) and long (60 days) term leach experiments were considered using alternating wet/dry conditions to simulate sulfate-production capacity and metal-discharge characteristics for MW and WR piles. Release of heavy metals follows the order of Pb2+ >Mn2+ >Zn2+ >Cu2+ for these pile samples. Values of 34SSO4 for river water that was collected after 3–4 h of heavy rainfall are close to values of 34SSO4 for water-soluble sulfates from mine-waste piles used in laboratory leach experiments.This revised version was published in February 2005 with corrections to the placement of the figures. 相似文献
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Shi-Ning Zhou 《Geotechnical and Geological Engineering》1984,2(3):261-267
Conclusion An airflow direction of any diagonal branch in ventilation networks is a function of the resistance of each branch, but its own resistance is not a factor. It is difficult to determine the airflow of diagonal branches. But the airflow direction of diagonal branches in some complex networks can be discriminated by applying theproperties 3–8 to V-shaped, T-shaped, Y-shaped, X-shaped and double diagonal branches networks. 相似文献