Rock slope deformation mechanism in the Cihaxia Hydropower Station, Northwest China

Verfasser / Beitragende:
[Zelin Zhang, Gao Liu, Shuren Wu, Huiming Tang, Tao Wang, Gaoyong Li, Changyu Liang]
Ort, Verlag, Jahr:
2015
Enthalten in:
Bulletin of Engineering Geology and the Environment, 74/3(2015-08-01), 943-958
Format:
Artikel (online)
ID: 605454248
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024 7 0 |a 10.1007/s10064-014-0672-y  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10064-014-0672-y 
245 0 0 |a Rock slope deformation mechanism in the Cihaxia Hydropower Station, Northwest China  |h [Elektronische Daten]  |c [Zelin Zhang, Gao Liu, Shuren Wu, Huiming Tang, Tao Wang, Gaoyong Li, Changyu Liang] 
520 3 |a Complex block-flexure slope toppling is observed in interbedded sandstone and slate in the upper Yellow River, China. Block toppling is observed in the relatively hard sandstone and flexural toppling is observed in the relatively soft slate. The evolution of toppling slope deformation is characterized by long-term progress and spatial variability. In order to study these characteristics, field investigations, adit prospecting, borehole drilling, sonic tests and numerical simulation were carried out. In addition, the effect of the structure, the composite mode of the rock mass, the unloading fissures and geomorphology are discussed. Furthermore, we explored the toppling mechanisms and simulated it numerically; on this basis, the slope evolution is divided into four stages. Results obtained from the numerical simulation compared well with field investigation data (investigation data, rock sonic survey and strata dip statistics). Comparative studies have demonstrated that the analytical methods presented in this paper are appropriate for back analysis of the toppling evolution process. The result showed that this toppling slope has not yet entered the later progressivity failure stage and is currently limited to collapse at shallow levels, whereas the deep-seated rock mass will remain stable for a long time. This study might provide reference for a stability evaluation and hazard prevention analysis for rock toppling. 
540 |a Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Toppling deformation  |2 nationallicence 
690 7 |a Block-flexural toppling  |2 nationallicence 
690 7 |a Formation mechanism  |2 nationallicence 
690 7 |a Discrete element method  |2 nationallicence 
690 7 |a Universal distinct element code (UDEC)  |2 nationallicence 
690 7 |a Hydropower station  |2 nationallicence 
700 1 |a Zhang  |D Zelin  |u Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China  |4 aut 
700 1 |a Liu  |D Gao  |u Lanzhou University, Lanzhou, China  |4 aut 
700 1 |a Wu  |D Shuren  |u Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China  |4 aut 
700 1 |a Tang  |D Huiming  |u China University of Geosciences, Wuhan, China  |4 aut 
700 1 |a Wang  |D Tao  |u Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China  |4 aut 
700 1 |a Li  |D Gaoyong  |u Lanzhou University, Lanzhou, China  |4 aut 
700 1 |a Liang  |D Changyu  |u Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China  |4 aut 
773 0 |t Bulletin of Engineering Geology and the Environment  |d Springer Berlin Heidelberg  |g 74/3(2015-08-01), 943-958  |x 1435-9529  |q 74:3<943  |1 2015  |2 74  |o 10064 
856 4 0 |u https://doi.org/10.1007/s10064-014-0672-y  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10064-014-0672-y  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhang  |D Zelin  |u Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Liu  |D Gao  |u Lanzhou University, Lanzhou, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wu  |D Shuren  |u Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Tang  |D Huiming  |u China University of Geosciences, Wuhan, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D Tao  |u Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Li  |D Gaoyong  |u Lanzhou University, Lanzhou, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Liang  |D Changyu  |u Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Bulletin of Engineering Geology and the Environment  |d Springer Berlin Heidelberg  |g 74/3(2015-08-01), 943-958  |x 1435-9529  |q 74:3<943  |1 2015  |2 74  |o 10064