GEOLOGICAL ENVIRONMENT CHARACTERISTICS OF ABANDONED LIMESTONE MINES IN SHANDONG PROVINCE: Management and Restoration Exploration

With investigation and study on the abandoned limestone mines in Shandong Province due to long-term unreasonable exploitation in history, it is found that the ecological environment of the mines widely distributed in the west and middle-south of Shandong have been seriously destroyed. The waste slag after quarrying are mostly piled into skirt-like slopes, tent-like heaps and high-steep slopes. With exposed bedrock and developed fissures, they will easily trigger debris flow and slide under concentrated rainfall conditions. Combined with the revirescence project practice of certain abandoned limestone mine in Zhangqiu city, the paper summarizes a comprehensive treatment and restoration experience on geological environment dominated by engineering measures, while taking into account ecological restoration, which would be a certain promotional value.