山东龙铟矿某单一工作面边采边复时机优选

我国传统采煤沉陷地复垦多采取沉陷后再复垦的模式，复垦时间长、复垦率低。近年来，有学者提出了边采边复的理论，并取得了一定的成果，但该类研究多针对多煤层或单一煤层开采造成的大范围损毁区域，并且相应的边采边复技术研究也是根据大范围内各阶段的地表变形情况来制定复垦方案，无法有效体现出地面复垦与地下开采的动态结合机理。以山东龙堌矿的某一工作面开采形成的沉陷地为例，进行单一工作面的边采边复技术研究。根据所选工作面的推进速度，划分了8个阶段，对各个阶段的开采进行了土地损毁情况分析，按照损毁程度及损毁地类型划分为9个评价单元，分别进行了土地复垦适宜性评价。结合适宜性评价结果将各单元合并为不同的复垦单元分别进行复垦规划，合理安排复垦施工工程，通过对比每个阶段可复垦出的耕地面积与相应的复垦成本，优选出了最佳复垦时机，以较低的成本尽可能复垦出更多的耕地。

Determination of the Concurrent Mining and Reclamation of a Single Working Face of Longgu Mine in Shandong Province

The traditional technique of coal-mining subsidence reclamation usually takes the method of reclamation after final subsidence,which takes too much time with lower reclamation rate.In resent years,the concurrent mining and reclamation theory is proposed by some scholars and certain achievements are obtained.But the research results are almost aiming at the large damage area cased by single coal seam or multiple coal seams,and the corresponding concurrent mining and reclamation technique is also based on a the various stages of the surface deformation in large area to make reclamation program,which can not reflect the dynamic combination mechanism between ground reclamation and underground mining effectively.Taking the subsidence area caused by the mining activity of the single working face of Longgu Mine in Shandong Province as the study example,the concurrent mining and reclamation technique is studied in depth.According to the advancing speed of the selected working face of the mine,the project is divided into 8 phases,the land damage situations cased by mining activities of each stage is analyzed,based on the damage degree and damaged land type,nine evaluation units are divided,the the land reclamation suitability is evaluated respectively.Combing with the land reclamation suitability evaluation results of nine evaluation units,the evaluation units are merged into different reclamation units,the reclamation plans are carried out respectively,and the land reclamation construction engineering of different reclamation units are arranged reasonably,the optimal reclamation time is determined by comparing the reclaimed land area and corresponding reclamation costs of each phases,so as to obtain more reclaimed land with lower costs.