A practical approach to determining the basic friction angle of natural and rough discontinuities in carbonate rock slopes

Zhen Ye, Qian Liu*, Qiang Xu, Xiujun Dong, Feng Pu

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandBegutachtung

Abstract

This study investigates the suitability of an adapted portable shearing box to measure the shear-induced dilation of a discontinuity and how the basic friction angle can be reliably derived from the shear data with dilation. Results show that samples with significant roughness are required.
The reliability of the resulting basic friction angle depends on both the magnitude of the applied normal loads and the horizontal base length used to calculate the angle of dilation. We have developed data processing techniques to identify the optimal horizontal base length. The proposed method was successfully applied to estimating the basic friction angle of discontinuities that control
the blocks stability in Kaili carbonate slope.
Originalspracheenglisch
TitelChallenges in Rock Mechanics and Rock Engineering: Proceedings of the 15th International ISRM Congress
Redakteure/-innenWulf Schubert, Alexander Kluckner
Seiten2243-2248
PublikationsstatusVeröffentlicht - 2024
Veranstaltung 15. Internationaler ISRM Kongress 2023 & 72. Geomechanik Kolloquium - Congress Salzburg, Salzburg, Österreich
Dauer: 9 Okt. 202314 Okt. 2023
https://www.isrm2023.com/de/

Konferenz

Konferenz 15. Internationaler ISRM Kongress 2023 & 72. Geomechanik Kolloquium
KurztitelISRM 2023
Land/GebietÖsterreich
OrtSalzburg
Zeitraum9/10/2314/10/23
Internetadresse

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