摘要
由于巷道支架与围岩不能良好接触而使支架受力不均,造成U型钢支架各种形式的破坏;巷道围岩风化或各种环境因素的作用,产生了巷道围岩的变形失稳。为解决这些问题。
Introduces a technology for backfilling the wall back of the roadway driven in deep soft rock mainly with fly ash and pulverized waste rock by pumping. Its advantageis high in mechanization degree, simple in technology andequipment and low in cost.
出处
《矿山压力与顶板管理》
1992年第2期14-17,80,共4页
Ground Pressure and Strata Control
