The behavior of brittle rocks

K. Duan; L. G. Tham; F. C.Y. Kwok

The behavior of brittle rocks

K. Duan, L. G. Tham, F. C.Y. Kwok

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 12 - Chapter in an edited book (Author) › peer-review

Abstract

Understanding the behavior of brittle rocks under different stress conditions is extremely important to the design and construction of underground projects such as mines, tunnels and underground hydropower stations. At the University of Hong Kong, both laboratory tests and numerical simulation were carried out to study the behavior of typical Hong Kong rocks. For the laboratory tests, the deformation properties (expressed by stress-strain curve) and failure process of granite under compression and tension were investigated. In addition, the evolution of dilatancy and time-dependent strength degradation of granite under constant loading were studied. AE technique was used to study the development of fracture during these tests. For the numerical simulations, the discrete element method was adopted to carry out numerical tests to simulate the laboratory tests. A same set of tests were carried out in the numerical simulations using the discrete element method (DEM). The present paper, which focuses on granite, reports and compares the results of the laboratory tests and the numerical simulations. © 2013 by Taylor & Francis Group, LLC.

Original language	English
Title of host publication	Rock Characterisation, Modelling and Engineering Design Methods
Publisher	CRC Press
Pages	23-31
ISBN (Print)	9781315884929, 9781138000575
Publication status	Published - 17 May 2013
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

Acoustic emission
Brittle rock
Crack development
DEM

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title = "The behavior of brittle rocks",

abstract = "Understanding the behavior of brittle rocks under different stress conditions is extremely important to the design and construction of underground projects such as mines, tunnels and underground hydropower stations. At the University of Hong Kong, both laboratory tests and numerical simulation were carried out to study the behavior of typical Hong Kong rocks. For the laboratory tests, the deformation properties (expressed by stress-strain curve) and failure process of granite under compression and tension were investigated. In addition, the evolution of dilatancy and time-dependent strength degradation of granite under constant loading were studied. AE technique was used to study the development of fracture during these tests. For the numerical simulations, the discrete element method was adopted to carry out numerical tests to simulate the laboratory tests. A same set of tests were carried out in the numerical simulations using the discrete element method (DEM). The present paper, which focuses on granite, reports and compares the results of the laboratory tests and the numerical simulations. {\textcopyright} 2013 by Taylor & Francis Group, LLC.",

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AU - Tham, L. G.

AU - Kwok, F. C.Y.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2013/5/17

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N2 - Understanding the behavior of brittle rocks under different stress conditions is extremely important to the design and construction of underground projects such as mines, tunnels and underground hydropower stations. At the University of Hong Kong, both laboratory tests and numerical simulation were carried out to study the behavior of typical Hong Kong rocks. For the laboratory tests, the deformation properties (expressed by stress-strain curve) and failure process of granite under compression and tension were investigated. In addition, the evolution of dilatancy and time-dependent strength degradation of granite under constant loading were studied. AE technique was used to study the development of fracture during these tests. For the numerical simulations, the discrete element method was adopted to carry out numerical tests to simulate the laboratory tests. A same set of tests were carried out in the numerical simulations using the discrete element method (DEM). The present paper, which focuses on granite, reports and compares the results of the laboratory tests and the numerical simulations. © 2013 by Taylor & Francis Group, LLC.

AB - Understanding the behavior of brittle rocks under different stress conditions is extremely important to the design and construction of underground projects such as mines, tunnels and underground hydropower stations. At the University of Hong Kong, both laboratory tests and numerical simulation were carried out to study the behavior of typical Hong Kong rocks. For the laboratory tests, the deformation properties (expressed by stress-strain curve) and failure process of granite under compression and tension were investigated. In addition, the evolution of dilatancy and time-dependent strength degradation of granite under constant loading were studied. AE technique was used to study the development of fracture during these tests. For the numerical simulations, the discrete element method was adopted to carry out numerical tests to simulate the laboratory tests. A same set of tests were carried out in the numerical simulations using the discrete element method (DEM). The present paper, which focuses on granite, reports and compares the results of the laboratory tests and the numerical simulations. © 2013 by Taylor & Francis Group, LLC.

KW - Acoustic emission

KW - Brittle rock

KW - Crack development

KW - DEM

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M3 - RGC 12 - Chapter in an edited book (Author)

SN - 9781315884929

SN - 9781138000575

SP - 23

EP - 31

BT - Rock Characterisation, Modelling and Engineering Design Methods

PB - CRC Press

ER -

The behavior of brittle rocks

Abstract

Bibliographical note

UN SDGs

Research Keywords

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