煤矸石尾矿库坝稳定性分析报告.docVIP

煤矸石尾矿库坝稳定性分析 ——以屯兰矿煤矸石尾库坝为例 摘 要 我国是世界上最大的煤炭生产国和消费国。目前，煤矸石是我国排放量及积存量最大的工业废弃物。然而，对煤矸石的综合利用尚不到矸石排放量的15%。余下矸石都采用圆锥式或沟谷倾倒式自然松散的堆放在矿区四周。由于矸石堆放的不稳固，严重威胁到影响区的生产生活安全。 以山西焦煤集团屯兰矿煤矸石尾矿库 研究成果认为：地形地貌条件、岩土结构及其特性等是库坝形状的客观物质基础；堆坝方式、堆积历史、堆积质量是影响库坝稳定性的主要因素；不良排水、筑坝的施工质量和不合理开挖是造成库坝失稳的直接诱发因素。 论文结合库坝稳定的定性定量分析结果、附近工程与居民生活条件及附近以往的筑坝维护经验，提出了采用注浆加固坝体、裂缝补填、坡面格构防护、坡顶与平台上设置截排水沟、及整个坡上进行种草生物防护等综合的防治措施的建议。 成果对煤矿煤矸石尾矿库坝及类似干、松的尾库坝的稳定性分析具有借鉴和参考作用。 关键词：煤矸石，尾矿库坝，工程勘察，稳定性分析，注浆加固 Shanxi coking coal group Abram ore tailings dam tuen mun coal Stability analysis Abstract China is the worlds largest producer and consumer of coal. At present, our country emissions coal gangue is the largest stock and product of industrial waste. However, for the comprehensive utilization of coal gangue is still less than 15% of emissions. The rest are adopted the cone type or waste valleys of natural loose dumping stacked in mining area around. Because of the gangue piled up shaky, a serious threat to the safety of production and life of influence. Taking shanxi coking coal group in tuen mun ore tailings dam Abram gangue as an example, through the literature review material, collect the regional geological material, field geological tone paint, engineering geology exploration, dam and fill in the library materials soil mechanical testing, indoor system summary analysis for the dam foundation of the tailings reservoir geological data and the pile of library into dam, finds out the history of the reservoir conditions of engineering geology and the main factors of influence stability reservoir. Research results think: conditions of landform, geotechnical structure and characteristics of the shape of the reservoir is objective material base; Way of dam, piling up history, quality is the main factors of influence reservoir stability; Bad drainage, DAMS and quality of the construction of the excavation is not reasonable cause reservoir instability of direct inducing factors. The thesis combines reservoir stable qualitative and