共查询到17条相似文献，搜索用时 265 毫秒
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针对鲁西南平原地区采煤塌陷地特点及其主要危害,总结了采煤塌陷灾害的防、减措施和本区4种成功的塌陷地治理模式,并远景性地提出了运用黄河落淤法治理塌陷地和建设湿地改造塌陷地的综合治理系统工程。 相似文献
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基于循环经济的淮北采煤塌陷地生态修复研究 总被引：1，自引：0，他引：1
淮北市煤炭开采为我国经济和社会发展做出了巨大贡献,也造成大面积的土地塌陷。传统的土地复垦模式不能有效解决采煤塌陷地可持续发展面临的问题。因此,本文在循环经济理论指导下,构建了淮北市采煤塌陷地循环经济型产业链。为采煤塌陷地实现可持续发展提供了有益的参考方案。 相似文献
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新泰市强制关闭的华源煤矿形成的采空塌陷区及责任人灭失的采煤塌陷地区域。治理区采空塌陷区现状属基本稳定。今后在无开矿及强排水的情况下,工作区属采空塌陷基本稳定区。本采煤塌陷地治理设计以恢复地质环境,恢复土地功能,保证农业生产,保障人民群众生产、生活安全为目标,因地制宜,科学规划,实现治理效果与周边环境的协调统一,保证设计方案的合理性和完整性。 相似文献
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随着徐州市矿山环境保护与治理工程的实施,徐州市因采煤塌陷及开山采石造成的生态环境问题及景观破坏得到改善,废弃闲置的土地资源得到有效利用。通过分析徐州市矿山环境保护与治理的现状,以生态优先、以人为本及经济效益和示范效应为原则,部署废弃露采矿山治理、采煤塌陷地复垦及绿色矿山建设的重点工程,从资金筹措、技术支撑及政策保障等方面提出重点工程实施的保障措施。 相似文献
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近年来,金乡县国土资源局加强矿山生态环境恢复治理工作。一是投资了16万元聘请山东省地质科学实验研究院编制了《金乡县地质灾害防治规划》。二是结合生态县建设,认真落实《土地开发复垦规划》和《采煤塌陷地治理规划》。三是按照《山东省地质环境保护条例》要求,全面落实塌陷地治理任务,与矿山企业签订了目标责任书,明确治理任务。四是积极申报部、省、市级治理项目,争取上级资金扶持,扩大资金筹措渠道。 相似文献
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以吉林辽源煤矿塌陷区为例,应用高精度电磁频谱探测法进行了煤炭采空区探测,通过勘探结果与实际资料对比分析,评价了辽源采煤塌陷区的稳定性,探索了应用电磁频谱物探技术进行采煤塌陷稳定性分析评价的可行性。为塌陷地的稳定性评价,提供了一种思路和方法,对于采空区地面塌陷的恢复治理和合理开发利用,具有一定的实用价值。 相似文献
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采空沉陷的预测是矿山开发利用、矿山地质环境保护与治理的重要依据,该文论述了影响煤矿采空沉陷预测的各种因素和应注意的问题,提出了易操作、直观、可动态管理的计算方法,以及矿山在开始采矿之前必须开展地表岩移监测等合理化建议。 相似文献
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Xiong Wu Xiao-Wei Jiang Yu-Fu Chen Hong Tian Neng-Xiong Xu 《Environmental Earth Sciences》2009,59(4):803-810
The scope and extent of mine subsidence caused by exploitation of metal ores are usually low. However, in some cases, owing
to such factors as special geological conditions in ore body, backward mining technology and unsound management systems, exploitation
of metal ores would also lead to a large area of mine subsidence, causing great damages to the mining environment and infrastructure.
A serious mine subsidence happened in January 2007 at the Haolaigou Iron Ore Mine has caused a huge collapse pit on the earth’s
surfaces. This provides a suitable place to study the influence of mine subsidence. Based on former research results, a 3D
geological model is constructed using the ROCK MODEL software developed by authors’ group. Based on in situ geological conditions,
the range of orebody mining and the physical and mechanical parameters of rock and soil mass were determined by inverse analysis.
Creep analysis of the collapse pit was also performed. Furthermore, the elastoplastic and creep of the secondary collapse
were computed, and the final range of the collapse pit was predicted. Finally, the influences of mining subsidence on the
ecological environment and public infrastructure are discussed and control measures were proposed. The results indicate that
the collapse pit would not affect the road even if creep is considered; however, the secondary collapse would influence the
road. So the collapse pit should be dealt with as soon as possible. 相似文献
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Some villages and bridges are located on the ground surface of the working district no. 7 in the Wanglou Coal Mine. If longwall mining is adopted, the maximum deformation of the ground surface will exceed the safety value. Strip mining is employed for the working district no. 7 which is widely used to reduce surface subsidence and the consequent damage of buildings on the ground surface. To ensure the safety of coal pillars and improve the recovery coefficient, theoretical analysis and numerical simulation (FLAC 3D) were adopted to determine the coal pillar and mining widths and to discuss the coal pillar stress distribution and surface subsidence for different mining scenarios. The results revealed that the width of coal pillars should be larger than 162 m, and the optimized mining width varies from 150 to 260 m. As the coal seam is exploited, vertical stress is mainly applied on the coal pillar, inducing stress changes on its ribs. The coefficient of mining-induced stress varies from 2.02 to 2.62 for different mining scenarios. The maximum surface subsidence and horizontal movement increase as the mining width increases. However, when the mining width increases to a certain value, increasing the pillar width cannot significantly decrease the maximum subsidence. To ensure the surface subsidence less than 500 mm, the mining width should not be larger than 200 m. Considering the recovery coefficient and safety of the coal pillar, a pillar width of 165 m is suggested. 相似文献
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The classical influence function method is widely used in mining subsidence prediction, but its use is typically limited to predicting the subsidence associated with horizontal stratiform underground mining when the ground surface is flat. By investigating the topography influence on subsidence under simplified mining conditions, this study attempts to improve the original influence function method to take topographic variations into account. New asymmetrical influence functions are used to simulate element subsidence. Integrating this asymmetrical approach into the influence function method increases the realism of subsidence computation when compared to the numerical simulation results. The maximum subsidence value and influence angle got from field data are introduced into the improved method, then two field subsidence cases are studied and acceptable comparison results are achieved. This improved method should serve as the foundation for future work. 相似文献