PMID- 37631408
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230828
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 15
IP  - 16
DP  - 2023 Aug 9
TI  - Axial Compressive Properties of Fiber-Reinforced Polymer-High-Water 
      Material-Polyvinyl Chloride Plastic Double-Wall Hollow Column.
LID - 10.3390/polym15163351 [doi]
LID - 3351
AB  - To further enrich the side-filling structure system of goaf-retaining roadways 
      and explore the compression reaction mechanism of the composite in the support 
      environment of underground mine roadways, this paper introduces a double-wall 
      hollow composite pier structure (FPRSC structure) that is composed of the 
      fiber-reinforced polymer (FRP) composite and polyvinyl chloride plastic (PVC) as 
      restraint materials and the infill material featured with a high water-to-powder 
      ratio. A total of 16 circular specimens with a diameter and height of 100 mm were 
      tested to explore the axial performance of the combined support structure. The 
      main control variables in the present research included the water-to-cement ratio 
      of the high-water material (e.g., 2:1, 3:1, and 4:1), the thickness of the FRP 
      pipe (i.e., 6 mm and 3 mm), the inner diameter of the PVC pipe (i.e., 29 mm and 
      22 mm), as well as the thickness of the PVC pipe (1.5 mm and 5 mm). Test results 
      showed that the high-water material was under triaxial stress due to the 
      double-wall tube binding, and the bearing capacity of the composite was higher 
      than that of the single material. Meanwhile, the FPRSC structure exhibited 
      obvious strain-hardening characteristics when the infill material is under the 
      combined constraints of double-wall hollow tubes. Moreover, the ratio of PVC-c, 
      FRP-A, and high-water material with a water-cement ratio of 3:1 shows the best 
      axial mechanical properties. The new composite pier structure with high toughness 
      and strength has wide application prospects in the field of goaf retention in 
      deep underground mines.
FAU - Yin, Haojie
AU  - Yin H
AUID- ORCID: 0009-0009-0459-7098
AD  - School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, 
      China.
FAU - Chen, Hui
AU  - Chen H
AD  - School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, 
      China.
AD  - Key Laboratory of Environmental Protection Mining for Minerals Resources, 
      Education Department of Xinjiang Uygur Autonomous Region, Xinjiang University, 
      Urumqi 830046, China.
AD  - School of Resources and Safety Engineering, Central South University, Changsha 
      410083, China.
FAU - Hu, Hongqian
AU  - Hu H
AD  - School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, 
      China.
FAU - Zhang, Lei
AU  - Zhang L
AD  - School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, 
      China.
FAU - Li, Huwei
AU  - Li H
AD  - School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, 
      China.
LA  - eng
GR  - 2020D14043/Accurate Delay Rock Breaking Mechanism and Key Technology Innovation 
      Team/
GR  - 2020D01C039/Natural Science Foundation of Xinjiang Uygur Autonomous Region of 
      China, Study on the Double-skin Tubular Columns used in the Roadside support for 
      the God-side entry Retaining/
PT  - Journal Article
DEP - 20230809
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC10458668
OTO - NOTNLM
OT  - composite support
OT  - fiber-reinforced polymer
OT  - high-water, fast-setting material
OT  - polyvinyl chloride plastic pipe
OT  - underground mine
COIS- The authors declare no conflict of interest.
EDAT- 2023/08/26 10:47
MHDA- 2023/08/26 10:48
PMCR- 2023/08/09
CRDT- 2023/08/26 01:31
PHST- 2023/06/22 00:00 [received]
PHST- 2023/07/28 00:00 [revised]
PHST- 2023/08/01 00:00 [accepted]
PHST- 2023/08/26 10:48 [medline]
PHST- 2023/08/26 10:47 [pubmed]
PHST- 2023/08/26 01:31 [entrez]
PHST- 2023/08/09 00:00 [pmc-release]
AID - polym15163351 [pii]
AID - polymers-15-03351 [pii]
AID - 10.3390/polym15163351 [doi]
PST - epublish
SO  - Polymers (Basel). 2023 Aug 9;15(16):3351. doi: 10.3390/polym15163351.