Planning Design and Practice of Land Reclamation in Collapse Areas of Zhaolou Coal Mine

In order to systematically evaluate the effects of land reclamation projects in coal mining collapse areas, taking the (Phase II) reclamation project of Zhaolou Coal Mine in Yanmei Heze Energy and Chemical as a case, a combination method of engineering design review and on-site survey is adopted to carry out comprehensive analysis of planning design and practical effect. The project constructs a comprehensive governance technology system with land leveling + water conservancy system reconstruction as the core, through engineering measures such as terrain reshaping, irrigation and drainage network reconstruction and others, the restoration of the ecological functions and production capabilities of collapsed lands are achieved. The practical results indicate that the project has cumulatively restored 93.174 6 hectares of irrigated lands, with a restoration rate of 70.21%; After reclamation, the national level natural quality, utilization, and economic grade of cultivated lands are improved to an average of 7, 10, and 11 grades, reaching the average level of undamaged lands in the region; The land utilization structure is conducted to be optimized, the agricultural production conditions are significantly improved, and the regional ecological environment is effectively restored, which provide a reference-worthy typical example for the land reclamation effect evaluation and engineering practice in coal mining collapse areas.