Stress distribution and failure characteristics of deep inclined seam and overhead mining along strike longwall floor Online publication date: Mon, 21-Dec-2020
by Fengda Zhang; Baohong Shen; Wenyan Guo
International Journal of Mining and Mineral Engineering (IJMME), Vol. 11, No. 4, 2020
Abstract: Based on a case study, this paper presents the stress distribution characteristics and plastic zone distribution characteristics of a deep inclined seam and overhead mining along strike longwall (ICMSL) floor by considering the results from numerical simulations, theoretical calculations, and field measurements. The results show that the vertical taper structure is formed by the roof, the interconnection, and the maingate. The vertical taper structure is formed by the floor, the face, and tailgate. The movement and deformation are mutually restricted by the vertical taper structure, which leads to the stress concentration of vertical stress and maximum shear stress. The maximum failure depth is 20 m, and the failure zone is mainly concentrated in the vicinity of the interconnection and face. The maximum failure depth of the coal seam floor is 21.32 m by theoretical calculation, and between 18.19 m and 20.24 m by in situ field tests.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Mining and Mineral Engineering (IJMME):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook