Experimental study on support mechanism of Thin Spray-on Liners in underground coal mines
A Thin Spray-on Liner (TSL) is defined as a thin chemical based coating or layer that is applied onto the mining excavations with a thickness of 3 to 5 mm.Compared with traditional support systems, TSL applications can bring significant benefits to the operation such as low volume, rapid application and rapid curing.These properties will ease logistics, improve on cycle times, increase mechanization, and improve safety for underground support.Over the past 20 years, extensive research has been carried out to study the supporting capabilities and mechanisms of TSLs, mostly in hard rock applications;however, inadequate research has been performed for underground coal mine applications.This paper aims to examine the support mechanism of TSLs in underground coal mines through a laboratory approach.Three types of laboratory tests were carried out to study the performance of TSLs using coal samples: direct pull adhesion tests, coated core tests and indirect tensile strength (Brazilian) tests.
Z.C.Li R.Mitra S.Saydam D.Chalmers
School of Mining Engineering, UNSW Australia, Sydney, Australia
国际会议
The 3rd ISRM Young Scholars Symposium on Rock Mechanics(第三届国际岩石力学青年学者论坛)
北京
英文
717-721
2014-11-08（万方平台首次上网日期，不代表论文的发表时间）