Study on Mechanical Properties of Roadside Filling Support Body with Strip-Net-Bolt Refuse Bags
YANG Yongchen
YIN Bo
ZHAO He
Abstract： Aiming at the problems that large rheological behavior and low support strength of the refuse filling body in roadway retained for next sublevel,a new roadside support technical scheme with strip-net-bolts refuse bags was proposed,which used the steel strip,anchor net and anchor bolt as the lateral support materials of the refuse bags so as to constrain its transverse deformation and increase its confining pressure and finally enhance the support strength of the refuse body. After the pressure-bearing mechanical experiment of the refuse filling body by laterally adding steel strip,anchor net and anchor bolts to the refuse filling body,the maximum ability of the refuse bags increased 2 ~5 times. Meanwhile, industrial tests on this technology were carried out in 3102 working face in Shanxi Zuoquan Tianyi Coal Co. ,Ltd. ,and the test results showed that it has the advantages of decreasing roadway surrounding rock deformation and improving roadside support effect,good technical and economic effect was achieved.
Keywords：roadway retained for next sublevelroadside fillingsupport technology
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 16-18 )