A hybrid tubular standing support for underground mines:Compressive behaviour

作     者：Hongchao Zhao Ting Ren Alex Remennikov Hongchao Zhao;Ting Ren;Alex Remennikov

作者机构：School of CivilMining and Environmental EngineeringFaculty of Engineering and Information SciencesUniversity of WollongongNSW 2522Australia 2 School of Geology and Mining EngineeringXinjiang UniversityUrumqi 830000China 

出 版 物：《International Journal of Mining Science and Technology》 (矿业科学技术学报（英文版）)

年 卷 期：2021年第31卷第2期

页      面：215-224页

核心收录：

学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学] 

基　　金：supported by the Australia government through the Australian Research Council’s Industrial Transformation Research Hub for nanoscience based construction material manufacturing(IH150100006) the Australia Coal Industry’s Research Program(C28068) 

主　　题：Standing support FRP PVC Confinement Composite structures Underground mines 

摘      要：This paper presents the development of an innovative standing support for underground *** main feature of this standing support is its exterior container,a combination of polyvinyl chloride(PVC)with large rupture strain and fibre-reinforced polymer(FRP)with high strength-to-weight *** demonstrate the advantages of this cementitious grout filled PVC-FRP tubular(PFT)standing support,a series of compression tests were *** variables included the strength of cementitious grout infill material and the thickness of FRP *** tests were also conducted on cementitious grout-filled PVC tubular(PT)support and cementitious grout-filled FRP tubular(FT)*** tests showed that PFT support presents a typical strain-hardening behaviour together with an outstanding axial deformation ability(20%of the overall height of the support).In addition,the maximum compressive strength of PFT support is much higher than that of the corresponding PT support and FT ***,using thicker FRP jacket or high strength cementitious grout material can enhance the load carrying capacity of PFT *** comparative results indicated that the high performance of PFT support is mainly attributed to the combination of confining constituents(*** and FRP)and infill material.