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https://doi.org/10.17559/TV-20141207160855

Distribution characteristics analysis of pressure-arch in horizontal stratified rocks under coal mining conditions

Shu-ren Wang   ORCID icon orcid.org/0000-0001-5490-2825 ; Opening Laboratory for Deep Mine Construction, Henan Polytechnic University, 2001 Century Avenue, Jiaozuo, Henan Province, 454003, China
Ning Li ; School of Civil Engineering and Mechanics, Yanshan University, No. 438 Hebei West Street, Haigang District, Qinhuangdao, 066004, China,
Chun-liu Li ; School of Civil Engineering and Mechanics, Yanshan University, No. 438 Hebei West Street, Haigang District, Qinhuangdao, 066004, China
Chen Cao ; Engineering Faculty, University of Wollongong, NSW 2530, Australia

Puni tekst: engleski, pdf (1 MB) str. 997-1004 preuzimanja: 362* citiraj
APA 6th Edition
Wang, S., Li, N., Li, C. i Cao, C. (2015). Distribution characteristics analysis of pressure-arch in horizontal stratified rocks under coal mining conditions. Tehnički vjesnik, 22 (4), 997-1004. https://doi.org/10.17559/TV-20141207160855
MLA 8th Edition
Wang, Shu-ren, et al. "Distribution characteristics analysis of pressure-arch in horizontal stratified rocks under coal mining conditions." Tehnički vjesnik, vol. 22, br. 4, 2015, str. 997-1004. https://doi.org/10.17559/TV-20141207160855. Citirano 05.03.2021.
Chicago 17th Edition
Wang, Shu-ren, Ning Li, Chun-liu Li i Chen Cao. "Distribution characteristics analysis of pressure-arch in horizontal stratified rocks under coal mining conditions." Tehnički vjesnik 22, br. 4 (2015): 997-1004. https://doi.org/10.17559/TV-20141207160855
Harvard
Wang, S., et al. (2015). 'Distribution characteristics analysis of pressure-arch in horizontal stratified rocks under coal mining conditions', Tehnički vjesnik, 22(4), str. 997-1004. https://doi.org/10.17559/TV-20141207160855
Vancouver
Wang S, Li N, Li C, Cao C. Distribution characteristics analysis of pressure-arch in horizontal stratified rocks under coal mining conditions. Tehnički vjesnik [Internet]. 2015 [pristupljeno 05.03.2021.];22(4):997-1004. https://doi.org/10.17559/TV-20141207160855
IEEE
S. Wang, N. Li, C. Li i C. Cao, "Distribution characteristics analysis of pressure-arch in horizontal stratified rocks under coal mining conditions", Tehnički vjesnik, vol.22, br. 4, str. 997-1004, 2015. [Online]. https://doi.org/10.17559/TV-20141207160855
Puni tekst: hrvatski, pdf (1 MB) str. 997-1004 preuzimanja: 283* citiraj
APA 6th Edition
Wang, S., Li, N., Li, C. i Cao, C. (2015). Analiza karakteristika raspodjele tlaka stropa u horizontalno slojevitim stijenama u uvjetima iskapanja ugljena. Tehnički vjesnik, 22 (4), 997-1004. https://doi.org/10.17559/TV-20141207160855
MLA 8th Edition
Wang, Shu-ren, et al. "Analiza karakteristika raspodjele tlaka stropa u horizontalno slojevitim stijenama u uvjetima iskapanja ugljena." Tehnički vjesnik, vol. 22, br. 4, 2015, str. 997-1004. https://doi.org/10.17559/TV-20141207160855. Citirano 05.03.2021.
Chicago 17th Edition
Wang, Shu-ren, Ning Li, Chun-liu Li i Chen Cao. "Analiza karakteristika raspodjele tlaka stropa u horizontalno slojevitim stijenama u uvjetima iskapanja ugljena." Tehnički vjesnik 22, br. 4 (2015): 997-1004. https://doi.org/10.17559/TV-20141207160855
Harvard
Wang, S., et al. (2015). 'Analiza karakteristika raspodjele tlaka stropa u horizontalno slojevitim stijenama u uvjetima iskapanja ugljena', Tehnički vjesnik, 22(4), str. 997-1004. https://doi.org/10.17559/TV-20141207160855
Vancouver
Wang S, Li N, Li C, Cao C. Analiza karakteristika raspodjele tlaka stropa u horizontalno slojevitim stijenama u uvjetima iskapanja ugljena. Tehnički vjesnik [Internet]. 2015 [pristupljeno 05.03.2021.];22(4):997-1004. https://doi.org/10.17559/TV-20141207160855
IEEE
S. Wang, N. Li, C. Li i C. Cao, "Analiza karakteristika raspodjele tlaka stropa u horizontalno slojevitim stijenama u uvjetima iskapanja ugljena", Tehnički vjesnik, vol.22, br. 4, str. 997-1004, 2015. [Online]. https://doi.org/10.17559/TV-20141207160855

Sažetak
The criteria of separation and dislocation of the layered roof in mining are put forward through the simplified mechanical model with weak inter-layers. Considering five different variables, namely the number of layers, the distance from the weak inter-layers to the mine opening, the thickness of the weak inter-layers, the lateral pressure coefficient and the spacing of the bedding planes, the distribution characteristics of the pressure-arch in the horizontal stratified rocks are analyzed during coal mining using FLAC3D. The results show that the newly appeared pressure-arch is composed of the original pressure-arch in each layer and the pressure-arch shape being affected by the weak layer in the surrounding rock of the mine opening. As the distance between the inter-layers and the coal seam increases, the effect on the pressure-arch is reduced gradually. The thinner inter-layers produce greater impact on the pressure-arch. The lateral pressure coefficient has a great influence on the pressure-arch and a stable pressure-arch could only be formed when the lateral pressure coefficient is in a suitable range.

Ključne riječi
numerical analysis; pressure-arch; stratified rock; weak inter-layers

Hrčak ID: 143153

URI
https://hrcak.srce.hr/143153

[hrvatski]

Posjeta: 1.013 *