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ARTICLE
Studies on the performance of impact resistant structure of hydraulic support in fully mechanized mining face under rock burst
1
Shandong University of Science and Technology, Qingdao, China
Submission date: 2022-05-16
Final revision date: 2022-08-23
Acceptance date: 2022-09-25
Online publication date: 2022-10-23
Publication date: 2022-11-25
Corresponding author
Journal of Theoretical and Applied Mechanics 2022;60(4):649-658
KEYWORDS
TOPICS
ABSTRACT
In order to solve the support problem of a fully mechanized coal face under rock burst and
with the goal of safe and efficient coal mining, the present study hasenvisaged a hexagon
periodic arrangement energy absorption structure. Based on the shell theory, the mechanical
model of the impact resistant structure and hydraulic support was constructed using the
finite element method. The mechanical properties of the hydraulic support under a full
impact and a partial load impact of the roof were analysed, and the impact resistant structure
was designed to prove the reliability of the structure. The results showed that the anti-impact
structure reduced the stress and stress fluctuation of the column and effectively reduced the
shape variable of the weak link of the hydraulic support. Furthermore, a delay in the time
was observed, when the pressure of the hydraulic cylinder reached the yield strength, and
there was a gain in the time for the opening of the large flow safety valve. Especially, under
the action of partial load, the column did not bend, and the hydraulic cylinder was in the
elastic range. Our results can provide new insights in the support of rock burst working face,
which is of great significance concerning safety in the coal mining.
REFERENCES (17)
1.
Han C., 2017, Research on ZHD6000 New Energy Absorption Component of Energy Absorption and Impact Prevention Hydraulic Support, Liaoning Technical University, China.
2.
Jiang Y.-D., Pan Y.-S., Jiang F.-X., Dou L.-M., 2014, State of the art review on mechanism and prevention of coal bumps in China, Journal China Coal Society, 39, 2, 205-213.
3.
Li L.P., Jia C., Sun Z.Z. et al., 2021, Research status and development trend of major engineering disaster prevention and control technology in deep underground, Journal of Central South University (Science and Technology), 52, 8, 2539-2556.
4.
Liu H., 2020, Research on The Energy Absorption Component of The Straight Tube with Valving type for Anti-Impact Energy Absorption Hydraulic Support, Liaoning Technical University, China.
5.
Pan J.F., Mao D.B., Lan H., Wang S.W., Qi Q.X., 2013, Study status and prospects of mine pressure bumping control technology in China, Coal Science and Technology, 9, 6, 21-25.
6.
Pan Y.S., Dai L.P., Li G.Z., et al., 2021a, Study on compound disaster of rock burst and roof falling in coal mines, Journal China Coal Society, 46, 1, 112-122.
7.
Pan Y.S., Gao X.P., Wang W., et al., 2021b, Research of hydraulic powered supports for entries’ advanced support in fully-mechanized working face of rock burst mine, Coal Science and Technology, 49, 6, 1-12.
8.
Pan Y.S., Qi Q.X., Wang A.W., et al., 2020a, Theory and technology of three levels support in bump-prone roadway, Journal of China Coal Society, 45, 5, 1585-1594.
9.
Pan Y.S., Xiao Y.H., Li G.Z., 2020b, Roadway hydraulic support for rockburst prevention in coal mine and its application, Journal of China Coal Society, 45, 1, 90-99.
10.
Qi Q.X., Li Y.Z., Zhao S.K., et al., 2019, Seventy years development of coal mine rockburst in China: establishment and consideration of theory and technology system, Coal Science and Technology, 9, 1-40.
11.
Tang Z., Pan Y.S., Zhu X.J., et al., 2015, Numerical analysis on properties of inside-outside overturning energy absorption and anti-impact components of hydraulic column, Journal of Safety Science and Technology, 11, 7, 74-79.
12.
Tian Y.T., Zhang P.S., Wu R.X., et al., 2021, Research status and prospect of fault activation under coal mining conditions, Coal Geology and Exploration, 49, 4, 60-70.
13.
Wang A.W., Fan D.W., Pan Y.S., et al., 2021a, Determination of three-level energy absorbing support parameters in rock burst roadway based on energy calculation, Coal Science and Technology, 49, 6, 72-81.
14.
Wang C.H., Jiang H.X., Niu H.C., et al., 2021b, Research on variable gradient thin-walled energy absorbing component of scour-proof hydraulic support, Journal of Mechanical Strength, 43, 5, 1062-1069.
15.
Wang H.W., Wang Q., Shi R.M., et al., 2022, A review on the interaction mechanism between coal bursts and fault structure instability from the perspective of multi-physical field, Journal of China Coal Society, 47, 2, 762-790.
16.
Wang Y.N., Song B.L., 1994, Analysis of working conditions and flow series of safety valve for hydraulic support, Jiangsu Coal, 1, 36-38.
17.
Yi Z.H., 2021, Study on multi-parameter rockburst early warning in large buried face, Coal Mine Modernization, 30, 4, 65-68.
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| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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