高水材料巷旁支护沿空留巷试验研究  

Trial Study on Gob-side Entry Retaining with High-water Material

作　　者：田海光[1] 

机构地区：[1]中铁第一勘察设计院集团有限公司,西安710043

出　　处：《煤炭技术》2017年第6期105-107,共3页Coal Technology

摘　　要：基于薄煤层顶板活动规律及高水材料试验,分析了高水材料作为充填体材料的合理性。利用数值模拟软件FLAC3D,分别模拟了充填体宽度为1.0、1.5、2.0、2.5、3.0 m时的沿空留巷效果。通过比较不同充填体宽度下的顶板下沉量、周围围岩塑性区变化情况,确定充填体宽度应不小于2.0 m。Based on the roof movement law of the thin coal seam and the experiment of high-water material, the rationality of using high-water material as filling material is analyzed. By using FLAC3D numerical simulation software, the effect of the gob-side entry retaining is simulated when width of the filling body is 1.0, 1.5, 2.0, 2.5, 3.0 m. By comparing the quantity of roof-subsidence and the plastic zone of surrounding rock in the different width of filling body, the width of filling body which is no less than 2.0 m is determined.

关 键 词：薄煤层 高水材料 沿空留巷 

分 类 号：TD823[矿业工程—煤矿开采]