PMID- 31712589
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20200514
LR  - 20210110
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 9
IP  - 1
DP  - 2019 Nov 11
TI  - Investigation on the pore characteristics of coal specimens with bursting 
      proneness.
PG  - 16518
LID - 10.1038/s41598-019-52917-9 [doi]
LID - 16518
AB  - To achieve further insight into the pore characteristics, the coal specimens with 
      different bursting proneness before and after uniaxial compression failure are 
      tested and compared in this paper. The data of mercury intrusion test is 
      corrected by that of low-temperature nitrogen adsorption and desorption test 
      (LTNAD). The pore size distribution and pore volume of specimens are obtained. 
      The pore compressibility coefficient is determined based on the fractal dimension 
      of pore. Scanning electron microscope (SEM) and computed tomography (CT) are 
      combined to evaluated the pore connectivity. The value of pore compressibility 
      coefficient of specimens with high bursting proneness is larger than that of 
      medium bursting proneness. It means more compressibility and abrupt failure under 
      stress. The researches of both SEM and CT indicate that the pore connectivity of 
      specimens with medium bursting proneness is better. The results show that great 
      differences exist in the pore characteristics of specimens with high and medium 
      bursting proneness, and uniaxial compression failure exacerbates the complexity 
      of pore characteristics.
FAU - Li, Yutao
AU  - Li Y
AD  - School of Mechanics & Civil Engineering, China University of Mining and 
      Technology (Beijing), Beijing, 100083, China. liyutao_82@126.com.
FAU - Jiang, Yaodong
AU  - Jiang Y
AD  - School of Mechanics & Civil Engineering, China University of Mining and 
      Technology (Beijing), Beijing, 100083, China.
FAU - Zhang, Bo
AU  - Zhang B
AD  - State Key Laboratory of Hydroscience and Engineering, Tsinghua University, 
      Beijing, 100084, China.
FAU - Song, Honghua
AU  - Song H
AD  - School of Energy & Mining Engineering, China University of Mining and Technology 
      (Beijing), Beijing, 100083, China.
FAU - Dong, Wenbo
AU  - Dong W
AD  - School of Mechanics & Civil Engineering, China University of Mining and 
      Technology (Beijing), Beijing, 100083, China.
FAU - Wang, Pengpeng
AU  - Wang P
AD  - School of Energy & Mining Engineering, China University of Mining and Technology 
      (Beijing), Beijing, 100083, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20191111
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
SB  - IM
PMC - PMC6848201
COIS- The authors declare no competing interests.
EDAT- 2019/11/13 06:00
MHDA- 2019/11/13 06:01
PMCR- 2019/11/11
CRDT- 2019/11/13 06:00
PHST- 2019/07/09 00:00 [received]
PHST- 2019/10/25 00:00 [accepted]
PHST- 2019/11/13 06:00 [entrez]
PHST- 2019/11/13 06:00 [pubmed]
PHST- 2019/11/13 06:01 [medline]
PHST- 2019/11/11 00:00 [pmc-release]
AID - 10.1038/s41598-019-52917-9 [pii]
AID - 52917 [pii]
AID - 10.1038/s41598-019-52917-9 [doi]
PST - epublish
SO  - Sci Rep. 2019 Nov 11;9(1):16518. doi: 10.1038/s41598-019-52917-9.