Research on Secondary Support Time of Soft Rock Roadway
Wu Duohua, Qiao Weiguo, Song Weijie, Vladimir Pershin
Available Online October 2016.
- https://doi.org/10.2991/coal-16.2016.2How to use a DOI?
- soft rock roadway; secondary support time; rheological model Introduction
- 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.
- 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 -