NDLI: Preliminary results of direct shear testing of large scale, jointed, soft rock masses

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Preliminary results of direct shear testing of large scale, jointed, soft rock masses

Content Provider	Scilit
Author	Szymakowski, J. Haberfield, C.
Copyright Year	2020
Description	The use of direct shear testing to provide data on jointed rock mass behaviour to applied loads has been limited. Unlike other methods, such as triaxial and UCS testing, the location of the shear plane can be controlled relative to the joint orientations, allowing a closer examination of the effects of anisotropy as well as other parameters. However, little direct shear testing has been carried out on jointed, soft rock masses. This may be due in part to the difficulty of obtaining suitable samples for testing and the more complex stress conditions arising from such testing. A study currently in progress at Monash University is using direct shear testing to provide data for the development of an analytically based criterion. This criterion is based on the hypothesis that the critical surface along which shear failure occurs can be considered as a macro-joint between the upper and lower shear boxes. This paper presents some preliminary results of direct shear testing (relatively) large-scale samples of soft, jointed rock masses made from a synthetic soft rock. The samples have been sheared under constant normal stiffness (CNS) conditions, and the strength and dilation of the jointed rock mass sample recorded. The measured strength and dilation are compared with the anticipated strength of an intact rock, allowing the influence of the jointing to be assessed. Book Name: Frontiers of Rock Mechanics and Sustainable Development in the 21st Century
Related Links	https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9781003077510-58&type=chapterpdf
Ending Page	260
Page Count	4
Starting Page	257
DOI	10.1201/9781003077510-58
Language	English
Publisher	Informa UK Limited
Publisher Date	2020-12-17
Access Restriction	Open
Subject Keyword	Book Name: Frontiers of Rock Mechanics and Sustainable Development in the 21st Century Microscopic Research Direct Shear Testing Jointed Rock Masses Soft Rock Large Scale
Content Type	Text
Resource Type	Chapter

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