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充填体参数选择及优化是大采高沿空留巷巷旁充填支护技术成败的关键。以斜沟煤矿18505工作面下方材料巷为工程背景,通过选择4种充填体方案,研究其留巷充填体不同力学性能条件下的应力、变形以及对沿空留设巷道的维护效果,并且确定最优参数。
The choice and optimization of filling parameters is the key to the success or failure of roadside filling and supporting technology for gob-side entry retaining. Taking the material lane under the 18505 working face of Xiegou Coal Mine as the engineering background, four kinds of filling body programs were selected to study the stress and deformation under the different mechanical properties of the retaining lane retaining body and the maintenance effect on the roadway reserved along the gully. Optimal parameters.