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兖州矿业(集团)公司南屯煤矿是原煤产量为400×104 t/a的特大型矿井.该矿每天约有9000~10000 m3的矿井水被排放,既污染了周围环境,又浪费了宝贵的水资源.为此,南屯煤矿建成了处理能力为1×104m3/d的矿井水净化站. 相似文献
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《Planning》2019,(4)
为实现小型矿井薄煤层的安全高效开采,改善工人的作业环境,提高工效,提升产能。景昇煤矿通过对薄煤层综采开采的充分论证,首次选用ZY3000/7. 5/16掩护式液压支架,制定有效的开采技术管理措施,最终实现了薄煤层工作面的安全高效回采,为集团其它矿井薄煤层开采积累了经验。 相似文献
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1 井田概况马家沟矿位于河北省唐山市东部,开平区西侧.本区地势较平坦,其中东部居民区为基岩零星出露;西部居民区全部被第四系粘土层掩盖,粘土层厚度平均在22米左右.东部比西部相对标高相差约23米.井田处于燕山台褶带蓟县拗陷区,唐山、蓟县褶皱东部开平主向斜的西北翼中部.石炭系、二叠系岩层组成含煤岩系,有可采煤层五层.一九七九年被鉴定为煤和瓦斯突出矿井.一九九二年矿井瓦斯涌出量39.85m~3/分,相对瓦斯涌出量23.18m~3/吨. 相似文献
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针对矿井项目污水处理工程中水池的渗漏问题,主要从设计、施工、材料几个方面进行成因分析,然后依据施工经验及规范要求提出相应的防治措施,以提高矿井污水处理工程的质量,保证其正常安全使用。 相似文献
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煤矿生产是我国社会经济发展的重要组成部分,煤矿建设工程已得到很大的发展。想要进一步提高工程建建设质量,必须要加强对其的研究管理,本文分析了煤矿建设工程质量管理现状,并提出相应改进措施。 相似文献
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煤矿地下地质条件及地下水情况复杂多变,在工作中经常遇到各种水害发生。笔者总结以往在煤矿陷落柱水害方面的经历,制定了一套合理、经济、实用的防治方案。本文主要阐述我国煤矿陷落柱水害特征与防治技术研究。 相似文献
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全面阐述了西曲矿井下污水治理的现状和存在问题,分析了矿井污水污染的特点和BH净水工艺的处理效果通过深入现场和现场实验,得出了可行性结论,提出了改进方案,对其它煤矿矿井污水处理具有深远的意义。 相似文献
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Assessment of rock mass characteristics and the excavation disturbed zone in the Lingxin Coal Mine beneath the Xitian river, China 总被引:2,自引:0,他引:2
Xingping Lai Meifeng Cai Fenhua Ren Mowen Xie Tetsuro Esaki 《International Journal of Rock Mechanics and Mining Sciences》2006,43(4):572-581
Safe production and induced hazard prevention in coal mines mainly concern problems in the excavation disturbed zone (EDZ), but coal mining can also make a significant impact on the environment. Comprehensive techniques using a borehole TV viewer system, electrical logging, and monitoring of drilling fluid leakage offer the ability to identify changing geological conditions and the location of any nearby abandoned mining workings. The inner collapsed zone and the expanding height of the crack zone transmitting water plus their spatial distribution after excavating the superincumbent coal seam stratum are determined at no. L3414 workings, Lingxin Coal Mine beneath the Xitian river, China. An integrated system of GIS-based on a stochastic model, which has been developed for the prediction of dynamic subsidence coupling the time function and probabilistic integral method, is verified through practice at the Lingxin Coal Mine. This development has greatly expanded the ability of the mine operator to characterize previously inaccessible areas of the mine, providing a reliable basis for safe mining and prevention of induced-hazards to ensure high production mining underneath the river bed. 相似文献
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Coal mine fires cause serious threat to the property and human lives. Outbreak of fire may be dealt with advanced fire suppression
techniques like Infusion of inert gases or liquid nitrogen, Dynamic Balancing of pressure, Reversal of underground mine ventilation,
Application of nitrogen foam, Inertisation of Goaf, Water mist etc. The paper addresses all those control techniques in detail.
Success story of controlling fires in coal mines of different parts of the world are reported. Results of a recently completed
Science & Technology (S&T) project with regard to various fire suppression techniques like Infusion of liquid nitrogen, Injection
of high pressure high stability nitrogen foam, and Water mist on open fire are also discussed. 相似文献