Accès libre

Support design of main retracement passage in fully mechanised coal mining face based on numerical simulation

Yalong Li

Yalong Li

School of Energy and Mining Engineering, Shandong University of Science and TechnologyShandong, China
Recherchez cet auteur sur
Sciendo|Google Scholar
Li, Yalong
, 
Mohanad Ahmed Almalki

Mohanad Ahmed Almalki

Department of Computer Information Systems, Faculty of Computing and Information Technology, King Abdulaziz UniversityJeddah, Saudi Arabia
Recherchez cet auteur sur
Sciendo|Google Scholar
Almalki, Mohanad Ahmed
 et 
Cheng Li

Cheng Li

Inchuan Group Co., LTDJinchuan, China
Recherchez cet auteur sur
Sciendo|Google Scholar
Li, Cheng
  
15 déc. 2021
Support design of main retracement passage in fully mechanised coal mining face based on numerical simulation's Cover Image
À propos de cet article
Article précédent
Article suivant
Citez
Télécharger la couverture
Publié en ligne: 15 déc. 2021
Pages: 553 - 560
Reçu: 16 juin 2021
Accepté: 24 sept. 2021
DOI: https://doi.org/10.2478/amns.2021.1.00059
Mots clés
© 2021 Yalong Li et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Fig. 1

Support design of main retracement passage
Support design of main retracement passage

Fig. 2

(A) Stress distribution in surrounding rock. (B) Plastic distribution.
(A) Stress distribution in surrounding rock. (B) Plastic distribution.

Fig. 3

Vertical stress result of main retracement passage
Vertical stress result of main retracement passage

Fig. 4

Field measurement and analysis
Field measurement and analysis

Statistical table of roof settlement of working face

Change of roadway wall stress in main retracement passage of working face/(Mpa) Distance from the main retracement passage (m)
50 40 30 20 10 0
Mining help The vertical stress 4.61 10.02 11.41 11.05 2.36 -
Maximum principal stress 9.68 10.36 11.80 11.05 2.43 -
Minimum principal stress 3.53 3.77 4.31 4.11 0.79 -
Non-mining side The vertical stress 8.99 9.35 11.06 12.36 11.65 3.94
Maximum principal stress 9.04 9.38 11.09 12.43 11.75 4.29
Minimum principal stress 3.32 3.44 4.11 4.11 4.34 1.50
Langue:
Anglais
Périodicité:
1 fois par an
Sujets de la revue:
Sciences de la vie, Sciences de la vie, autres, Mathématiques, Mathématiques appliquées, Mathématiques générales, Physique, Physique, autres
RSS Feed de la revue