Investigation of geomechanical characterization and size effect of soil-rock mixture: a case study.
In: Bulletin of Engineering Geology & the Environment, Jg. 80 (2021-08-01), Heft 8, S. 6263-6274
Online
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Zugriff:
Soil-rock mixture (S-RM) exerts a major control on slope stability. Baidian County in southeastern China was selected as a case study to better understand the effect of S-RM on potential slopes. The developed slope deposits in Baidian County mainly consist of different fractions of soil and fragmented rocks with random structure and poor sorting, which is characteristic of a typical S-RM. A series of large in situ horizontal push-shear tests was conducted on selected sites under natural conditions to investigate the mechanical strength characteristics and size effect of the regional S-RM. The results show a larger internal friction angle and smaller cohesion value than reported in previous experimental studies, which directly correspond to block proportion by weight (WBP) of S-RM. The mechanical parameters of the various S-RM sizes exhibit two distinct trends that follow exponential regression functions. The size effect is assumed to be influenced by the non-uniform coefficient (Cu). These results provide important insight on the engineering properties of S-RM and guidance for the design of suitable slope mitigation strategies. [ABSTRACT FROM AUTHOR]
Titel: |
Investigation of geomechanical characterization and size effect of soil-rock mixture: a case study.
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Autor/in / Beteiligte Person: | Gao, Wei ; Iqbal, Javed ; Hu, Ruilin |
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Zeitschrift: | Bulletin of Engineering Geology & the Environment, Jg. 80 (2021-08-01), Heft 8, S. 6263-6274 |
Veröffentlichung: | 2021 |
Medientyp: | academicJournal |
ISSN: | 1435-9529 (print) |
DOI: | 10.1007/s10064-021-02289-0 |
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