Experimental Study on the Optimization of Filling and Grouting Materials in Salt Mine Goaf
There are many studies on the flow characteristics of mud at home and abroad,but up to now,there is no unified standard for the flow characteristics of mud.In order to study the flow characteristics of solid waste slurry and better apply it to the filling site of salt mine goaf,physical parameter tests,one-dimensional settlement column tests,and direct shear tests were conducted on waste slurry materials.Selection standards for filling materials and mud in salt mine goaf were proposed.The source,composition,and particle size of the fine and coarse aggregates used for preparing the filling slurry were ultimately determined through various experimental methods.
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