关键词: 不同采厚, 边采边复, 开采沉陷, 单一工作面

Abstract: In our country, ground subsidence was triggered by underground coal mining, land damage on the ground was more serious. There were some problems such as low restoration rate of land resources and long time for subsidence land reclamation by traditional technology with the condition of final subsided status. With the suggestion of the theory of concurrent mining and reclamation, the application of concurrent mining and reclamation technology in coal mining subsidence area with high underground water level showed a certain superiority. Concurrent mining and reclamation technology, was to adapt reclamation measures on the ground, while subsidence occurring or not occurred, it was necessary to simulate and analyze the dynamic subsidence on the ground and its impact to land, while the process and disciplines of ground subsidence caused by different coal seam thickness mining were not the same, therefore, it was necessary to study the simulation of the concurrent mining and reclamation, when difference coal seam thickness mining implemented underground. The study employs indoor simulation method, this paper takes the single working face of Dongtan well coal mine in Shandong as the simulation test area, the mining subsidence prediction software (MSPS) is used to predict the dynamic subsidence of the mining units, Based on the ground subsidence characteristics, different concurrent mining and reclamation programs were designed and analysed.