摘要
在两种不同配料的高水灰渣巷旁充填巷道内,通过矿压观测,对充填体的受力变形及力学性能进行了分析,认为高水灰渣构筑的充填体具有良好的控顶性能。
A test of the roadside backfilling with high water con-tent cinder mixed with fluidized bed cinder was carried outto observe the vertical and horizontal deformation and bear-ing capacity of the filled pack. The test results indicate thatthe filling material of high water content cinder has goodtoughness to efficiently support the roof after it was back-filled to the roadside and, besides, adequates itself to the de-velopment of ground pressure acted on the road retained a-long the goaf of previous working area. The convergencerate of the road cross section is only 13.8% and the situa-tion of the road keeps well. It is considered to be rational forseams of 2 m mining height to support the road by a 1.2 mwide pack.
出处
《矿山压力与顶板管理》
1991年第4期36-41,70-73,共6页
Ground Pressure and Strata Control
