Reclamation Suitability Evaluation of Damaged Mined Land Based on the Limit Condition Method－Example of Pingdingshan Tianan Ten Coal Mine

Reclamation suitability evaluation is the basis for determining reuse direction of damaged land. Limit condition method most widely used in land reclamation at present. In this paper, limit to evaluate Pingdingshan Tianan ten coal mine. The index area determined as six main factors: field slope/land flatness, ponding, depth collapse, soil texture, thickness layer, irrigation and drainage conditions, finally determine be reclaimed combination with overall local use planning wishes residents.