THE RESEARCH ON DEFORMATION MECHANISM AND HARMONIZATION SUPPORTING TECHNIQUE OF BOLTS AND ANCHORAGE CABLES IN HIGH STRESS ROADWAY OF DEEP MINE
Based on the laboratory tests of rock mechanics parameters, the measured results on the spot and numerical simulated results, the deformation mechanism of tailgate in high stress of deep mine was discussed. Furthermore, the thought of harmonization supporting of high pretension, high strength bolts and anchorage cables was proposed. With the aid of the numerical simulation, the supporting parameters of tailgate were optimized. The findings indicated that the tailgates roof is stave and the deformation of surrounding rock is big. Moreover, it is very important to design bolt and cables pretension correctly and the harmonization supporting of bolts and anchorage cables is required. In order to increase the elongation ratio of anchorage cables, it is necessary to add the plank under the salvers when stretch-draw the anchorage cables. The obvious controlling effect was obtained when using the harmonization supporting technique of high pretension, high strength bolts and anchorage cables. Finally, the industrial test results showed that the optimal distance and the supporting parameters had good effect to control the deformation of the surrounding rock in high stress roadway of deep mine.
XIAO-XIANG CHEN PAN-FENG GOU AN-ZHI YAN
School of Energy Science and Engineering, Henan Polytechnic University Jiaozuo, 454000, Henan, China School of Civil Engineering, Henan Polytechnic University Jiaozuo, 454000, Henan, China
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
751-756
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）