Proceedings of the 8th Russian-Chinese Symposium “Coal in the 21st Century: Mining, Processing, Safety"

Research on Secondary Support Time of Soft Rock Roadway

Authors
Wu Duohua, Qiao Weiguo, Song Weijie, Vladimir Pershin
Corresponding Author
Wu Duohua
Available Online October 2016.
DOI
https://doi.org/10.2991/coal-16.2016.2How to use a DOI?
Keywords
soft rock roadway; secondary support time; rheological model Introduction
Abstract
In order to determine accurately secondary support time, the adjustment process of surrounding rock stress and strength in the course of supporting is analyzed based on the support principle of soft rock roadway. Based on the rheological model of soft rock roadway and the corresponding relationship between the mechanics behaviors of elastic zone, plastic zone and fractured zone and rock complete stress-strain process, the theoretical formula of secondary support time is proposed. Then the influential factors and rules of secondary support time are analyzed. To validate the study, the secondary support time theory is applied to engineering practice. Results show the roadway maintains a good stability according to the proposed secondary support time.
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Proceedings
8th Russian-Chinese Symposium “Coal in the 21st Century: Mining, Processing, Safety"
Part of series
Advances in Engineering Research
Publication Date
October 2016
ISBN
978-94-6252-233-6
ISSN
2352-5401
DOI
https://doi.org/10.2991/coal-16.2016.2How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Wu Duohua
AU  - Qiao Weiguo
AU  - Song Weijie
AU  - Vladimir Pershin
PY  - 2016/10
DA  - 2016/10
TI  - Research on Secondary Support Time of Soft Rock Roadway
BT  - 8th Russian-Chinese Symposium “Coal in the 21st Century: Mining, Processing, Safety"
PB  - Atlantis Press
SP  - 5
EP  - 10
SN  - 2352-5401
UR  - https://doi.org/10.2991/coal-16.2016.2
DO  - https://doi.org/10.2991/coal-16.2016.2
ID  - Duohua2016/10
ER  -