Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

The construction works within the abandoned coal mine areas are underway on a large scale through a special law for the promotion of the areas. Ground reinforcement has been done by the Coal Industry Promotion Board, Korea, through the detailed survey and risk evaluation of those areas. The ground reinforcement has not been focused on the whole coal mined area but on the main structures existing or under construction. The main methods of ground reinforcement for coal mined cavity are filling and micro piling for foundation. This study was performed to review the method of ground reinforcement for the abandoned coal mined areas in Korea and to inform engineers of the idea for the ground reinforcement designing. Risk assessment computing program for abandoned coal mined area covering the accurate local ground condition has not been developed in Korea. The research on the method and model for risk assessment in domestic ground condition should be carried out in near future.