一平浪盐矿两采区分区矿柱溶通分析

Analysis on the Partition Pillar Thorough Dissolution in Two Mining Areas in Yipinglang Salt Mine

由于矿体存在高品位带,分区矿柱两侧的15#、16#硐室长期为灌水点和分区矿柱存在裂隙致使三、四采区90米分区矿柱被溶通。溶通后,采取了两区联合回采,保证了卤水生产的连续性,同时提高了中段的产卤能力、卤水浓度(含盐量提高)和回采率,延长其服务年限。

Due to the existence of high grade zone,caverns No.15 and No.16 at both sides of partition pillars are the water injection points,the cracks in partition pillars result in thorough dissolution in 90m partition pillar in No.3 and No.4 mining areas.After dissolution,joint backstoping bewteen 2 mining areas is applied,which guarantees the continuity of the brine production and improves the brine production capacity,the brine concentration（salt content increased） and the recovery rate in the middle section at the same time.The service time is elongated.