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A web-based GIS for managing and assessing landslide data for the town of Peace River, Canada
Download2009-01-01
Kim, T. H., Chao, D., Martin, C. D., Froese, C. R., Morgan, A. J., Chowdhury, S., Lan, H. X.
Abstract. Assessment of geological hazards in urban areas must integrate geospatial and temporal data, such as complex geology, highly irregular ground surface, fluctuations in pore-water pressure, surface displacements and environmental factors. Site investigation for geological hazard studies...
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Effect of heterogeneity of brittle rock on micromechanical extensile behavior during compression loading
Download2010
Lan, H., Hu, B., Martin, C. D.
A grain-based Universal Distinct Element Code model was developed to generate a deformable polygonal grain-like structure to simulate the microstructure of brittle rock. It takes into account grain-scale heterogeneity including microgeometric heterogeneity, grain-scale elastic heterogeneity, and...
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1999
Kaiser, P. K., McCreath, D. R., Martin, C. D.
Abstract: A review of underground openings, excavated in varying rock mass types and conditions, indicates that the initiation of brittle failure occurs when the damage index, Di, expressed as the ratio of the maximum tangential boundary stress to the laboratory unconfined compressive strength...
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2003
Kaiser, P., Hajiabdolmajid, V., Martin, C. D.
In deep underground excavations in hard rocks where stresses easily exceed the micro-crack initiation stress level inside the rock mass, proper consideration of the behaviour of rockmass during the brittle fracturing process in constitutive modelling is of paramount importance. Current empirical...
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2005
Martin, C. D., Chan, D. H., Kin, J. S., Jeon, J. S.
Abstract: Tunnel construction frequently makes use of radial displacements to monitor tunnel Support performance, particularly in complex ground conditions. In recent years, absolute displacement monitoring methods have replaced the more traditional radial convergence measurements. It has been...
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2006
Abstract: The use of sub-horizontal jet-grout columns in the construction of soft ground tunnels is a popular method to provide excavation support. The sequential installation of jet-grout columns in a tunneling environment will result in the jet-grout columns being loaded in a staged manner,...
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2003
Christiansson, R., Martin, C. D., Kaiser, P. K.
Abstract: When the stress-induced risks to a projects warrant it, in situ stress must be measured. However, as the stress-induced risks increase, i.e.. the stress magnitudes approach the rock mass strength, the confidence in commonly used stress measurement techniques decrease. The design of...