浅埋深高强度综采地表沉陷规律实测研究

发布时间：2018-02-22 03:21

本文关键词： 高强度综采预计参数角量参数地表沉陷　出处：《煤炭科学技术》2017年10期 　论文类型：期刊论文

【摘要】：基于鄂尔多斯地区风积砂覆盖、厚煤层、浅埋深、工作面尺寸大的特点,为掌握综采工作面快速推进在高强度开采条件下的地表移动变形规律,在鄂尔多斯某煤矿试验区开展了地表移动观测站观测研究,历经约15个月的长期观测并对取得的实测数据分析,计算求得该条件的地表移动周期特征,拟合求取了一套完整的地表沉陷计算参数和角量参数,分析了该地质采矿条件下地表沉陷预计参数、角量参数与地表动态变形特征。研究结果表明:在鄂尔多斯地区高强度综采条件下,地表移动变形具有沉陷分布集中、地表下沉系数较大、地表动态移动变形值大而剧烈、地表下沉盆地边界收敛缓慢、地表移动初始期与活跃期均较短的特征。
[Abstract]:Based on the characteristics of aeolian sand cover, thick coal seam, shallow buried depth and large size of face in Ordos area, the law of surface movement and deformation of fully mechanized mining face under the condition of high intensity mining is grasped. The observation research of surface movement observation station was carried out in a coal mine experimental area in Ordos. After about 15 months of long-term observation and analysis of the measured data obtained, the characteristics of surface movement cycle of the condition were calculated and obtained. A complete set of calculation parameters and angular parameters of surface subsidence are obtained by fitting, and the prediction parameters of surface subsidence under the geological and mining conditions are analyzed. The results show that under the condition of high strength fully mechanized mining in Ordos area, the subsidence distribution is concentrated, the subsidence coefficient is large, and the dynamic deformation value is large and severe. The boundary convergence of surface subsidence basin is slow and the initial and active periods of surface movement are short.
【作者单位】：天地科技股份有限公司开采设计事业部;中国煤炭学会煤矿开采损害技术鉴定委员会;内蒙古北联电能源开发有限责任公司高头窑煤矿;
【基金】：国家科技重大专项资助项目(2016ZX05045-007)
【分类号】：TD325

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