Mechanism of Zonal Disintegration Phenomenon (ZDP) Around Deep Roadway Under Dynamic Excavation

Mechanism of Zonal Disintegration Phenomenon (ZDP) Around Deep Roadway Under Dynamic Excavation Geotech Geol Eng https://doi.org/10.1007/s10706-018-0586-8 OR IGINAL PAPER Mechanism of Zonal Disintegration Phenomenon (ZDP) Around Deep Roadway Under Dynamic Excavation . . Qiang Gao Qiangyong Zhang Wen Xiang Received: 22 March 2018 / Accepted: 23 May 2018 Springer International Publishing AG, part of Springer Nature 2018 Abstract Due to the exhaustion of shallow the deformation and failure of surrounding rock in resources, the underground roadway used for coal deep underground engineering. mining has reached the depth of 1000 m. The zonal disintegration phenomenon (ZDP) in deep rock mass Keywords Zonal disintegration phenomenon will appear with the increase of depth which is widely (ZDP)  Strain gradient  Deformation theory of different from shallow failure mode.In order to reveal plasticity  Dynamic excavation  Numerical analysis the formation mechanism of ZDP, a new theoretical Oscillating mode model is proposed. Based on the strain gradient theory and the deformation theory of plasticity, an elasto- List of symbols plastic damage softening model considering of u€ Two order derivative of the displacement on dynamic excavation is put forward. The dynamic time equations and boundary equations are expressed Dr The space step through the Runge–Kutta method. The numerical d Modification parameter of the damage analysis http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Geotechnical and Geological Engineering Springer Journals

Mechanism of Zonal Disintegration Phenomenon (ZDP) Around Deep Roadway Under Dynamic Excavation

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Publisher
Springer International Publishing
Copyright
Copyright © 2018 by Springer International Publishing AG, part of Springer Nature
Subject
Earth Sciences; Geotechnical Engineering & Applied Earth Sciences; Hydrogeology; Terrestrial Pollution; Waste Management/Waste Technology; Civil Engineering
ISSN
0960-3182
eISSN
1573-1529
D.O.I.
10.1007/s10706-018-0586-8
Publisher site
See Article on Publisher Site

Abstract

Geotech Geol Eng https://doi.org/10.1007/s10706-018-0586-8 OR IGINAL PAPER Mechanism of Zonal Disintegration Phenomenon (ZDP) Around Deep Roadway Under Dynamic Excavation . . Qiang Gao Qiangyong Zhang Wen Xiang Received: 22 March 2018 / Accepted: 23 May 2018 Springer International Publishing AG, part of Springer Nature 2018 Abstract Due to the exhaustion of shallow the deformation and failure of surrounding rock in resources, the underground roadway used for coal deep underground engineering. mining has reached the depth of 1000 m. The zonal disintegration phenomenon (ZDP) in deep rock mass Keywords Zonal disintegration phenomenon will appear with the increase of depth which is widely (ZDP)  Strain gradient  Deformation theory of different from shallow failure mode.In order to reveal plasticity  Dynamic excavation  Numerical analysis the formation mechanism of ZDP, a new theoretical Oscillating mode model is proposed. Based on the strain gradient theory and the deformation theory of plasticity, an elasto- List of symbols plastic damage softening model considering of u€ Two order derivative of the displacement on dynamic excavation is put forward. The dynamic time equations and boundary equations are expressed Dr The space step through the Runge–Kutta method. The numerical d Modification parameter of the damage analysis

Journal

Geotechnical and Geological EngineeringSpringer Journals

Published: May 28, 2018

References

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