陕西煤炭2024，Vol.43Issue(2)：44-47,4.DOI:10.20120/j.cnki.issn.1671-749x.2024.0209
煤基固废制备采空区地表裂缝封堵材料的配比试验
Experimental study on preparation of surface crack sealing material from coal base solid waste
李绪萍 1王洁 1张金山 1董红娟1
作者信息
- 1. 内蒙古科技大学 矿业与煤炭学院,内蒙古 包头 014017
- 折叠
摘要
Abstract
Mining enterprises produce a large amount of solid waste in the production process.The surface cracks in the goaf of coal mine also have great influence on production and human life.Based on the analysis of the mine landform,formation lithology,climate and hydrology,the cause of the formation of surface cracks in the gob of the mine is obtained.Combined with the actual situation of the site,coal-based solid waste preparation filling slurry is used to solve the problem of surface cracks in a coal mine in Inner Mongolia.The fluidity of filling slurry,compressive strength and durability of filling body are studied using different filling material ratios(fly ash,desulfurized gypsum and cement are selected as filling materials),and the optimal proportion of fly ash and cement is 10∶0.5 and the ratio of water-fly ash is 1.关键词
煤基固废/采空区/地表裂缝/封堵材料/注浆充填Key words
coal-based solid waste/goaf/surface cracks/filling materials/grouting filling分类
矿业与冶金引用本文复制引用
李绪萍,王洁,张金山,董红娟..煤基固废制备采空区地表裂缝封堵材料的配比试验[J].陕西煤炭,2024,43(2):44-47,4.
