边采边复耕地区动态施工标高模型构建与实例分析

发布时间：2018-06-01 21:56

  本文选题：边采边复 + 施工标高　； 参考：《煤炭学报》2017年08期

【摘要】：在进行边采边复规划设计过程中,实地复垦施工时耕地区应当采取的施工标高,关系到整个复垦工程的成败,尤为重要。因此为了更好的指导复垦工程实地施工,以边采边复技术思想为指导,首先系统分析了影响耕地动态施工标高的三大因素,在此基础上构建了耕地动态施工标高的理论模型。并结合动态沉陷模型和概率积分法,根据单一煤层和多煤层不同开采条件下地面沉陷特点,分别推导出了单一煤层和多煤层不同开采条件下,耕地动态施工标高的数学模型。最后以安徽某高潜水位煤矿为实例,分别对两个不同复垦施工时刻,耕地区A1,A2点的施工标高进行模拟分析计算,当复垦施工时刻t_(s1)=210 d时,两点的施工标高分别为23.6,24.2 m,t_(s2)=296 d时两点的施工标高分别为22.9,23.7 m,结果表明耕地动态施工标高模型具有很好的适用性,这将促进边采边复技术的推广应用。
[Abstract]:In the process of planning and designing while mining and reclaiming, the construction elevation that should be adopted in the field reclamation construction is of great importance to the success or failure of the whole reclamation project. Therefore, in order to better guide the field construction of reclamation project, with the idea of side mining and recovery technology as the guidance, this paper first systematically analyzes the three major factors that affect the dynamic construction elevation of cultivated land, and on this basis, constructs the theoretical model of the dynamic construction elevation of cultivated land. Combined with dynamic subsidence model and probabilistic integration method, according to the characteristics of surface subsidence under different mining conditions of single coal seam and multiple coal seam, the mathematical model of dynamic construction elevation of cultivated land under different mining conditions of single coal seam and multiple coal seam is derived respectively. Finally, taking a coal mine with a high diving level in Anhui Province as an example, the construction elevation of A _ (1) A _ (2) point in ploughing area is simulated and calculated at two different reclamation construction times. When the reclamation construction time is t_(s1)=210 d, The construction elevation of two points is 23.6m / 24.2 m / d / s / 296d respectively. The results show that the dynamic construction elevation model of cultivated land has a good applicability, which will promote the popularization and application of the technology of side mining and recovery.
【作者单位】： 中国矿业大学(北京)土地复垦与生态重建研究所;
【基金】：国家自然科学基金资助项目(41401609)
【分类号】：TD88
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本文编号：1965812