Numerical Investigation of Gob-Side Entry Retaining through Precut Overhanging Hard Roof to Control Rockburst
Joint Authors
He, Manchao
Gan, Li
Zhao, Chengwei
Sun, Xiaoming
Jianquan, Tang
Peng, Song
Chengyu, Miao
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-06
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Gob-side entry retaining through precut overhanging hard roof (GERPOHR) method is one of the commonly used methods for nonpillar mining.
However, feasibility studies of controlling rockburst by this method are few.
Rockburst occurs in hard thick strata with a higher probability, larger scale, and higher risk.
To better understand the GERPOHR method is beneficial for rockburst mitigation.
In this paper, the design of GERPOHR was first introduced.
And the layout of the working face was optimized.
Then, based on the numerical simulation, the stress and displacement distribution characteristics were compared under the condition of conventional mining and GERPOHR method.
The research shows that the intervals of main roof weighting could be decreased through the precut overhanging hard roof method.
And the peak value of abutment pressure decreased.
Meanwhile, the energy accumulation and the stress fluctuation could be alleviated in roadway surrounding rock.
American Psychological Association (APA)
Sun, Xiaoming& Gan, Li& Zhao, Chengwei& Jianquan, Tang& He, Manchao& Peng, Song…[et al.]. 2018. Numerical Investigation of Gob-Side Entry Retaining through Precut Overhanging Hard Roof to Control Rockburst. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1116784
Modern Language Association (MLA)
Sun, Xiaoming…[et al.]. Numerical Investigation of Gob-Side Entry Retaining through Precut Overhanging Hard Roof to Control Rockburst. Advances in Civil Engineering No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1116784
American Medical Association (AMA)
Sun, Xiaoming& Gan, Li& Zhao, Chengwei& Jianquan, Tang& He, Manchao& Peng, Song…[et al.]. Numerical Investigation of Gob-Side Entry Retaining through Precut Overhanging Hard Roof to Control Rockburst. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1116784
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116784