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Title: Summary of Rock-Property Measurements for Hong Kong TuffSamples

Summary of Rock-Property Measurements for Hong Kong TuffSamples A series of rock-property measurements was performed on a suite of rhyolitic tuff samples from the area above the Aberdeen Tunnel of Hong Kong. The goal of this study was to determine the mechanical properties of these samples after weathering. This report contains petrographic descriptions, porosity, bulk and grain density, as well as ultrasonic measurements, elastic modulii calculations, and rock-strength determinations. Variations in rock properties are related to alteration and the presence of fractures in the tuff. Granitic rocks located adjacent to the altered tuffs would be better candidates for underground excavations.
Authors: ;
Publication Date:
OSTI Identifier:885236
Report Number(s):LBNL--58878
R&D Project: 366256; BnR: YN0100000; TRN: US200616%%454
DOE Contract Number:DE-AC02-05CH11231
Resource Type:Technical Report
Data Type:
Research Org:Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org:USDOE Laboratory Directed Research andDevelopment
Country of Publication:United States
Language:English
Subject: 58 GEOSCIENCES; FRACTURES; GRAIN DENSITY; HONG KONG; MECHANICAL PROPERTIES; POROSITY; TUFF; ULTRASONIC WAVES; WEATHERING Rock-property measurements Hong Kong