caa a22 4500 605454604 CHVBK 20210128100208.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s10064-014-0625-5 doi (NATIONALLICENCE)springer-10.1007/s10064-014-0625-5 Weathering effects on discontinuity properties in sandstone in a tropical environment: case study at Kota Kinabalu, Sabah Malaysia [Elektronische Daten] [Frederick Tating, Robert Hack, Victor Jetten] The formation of mechanical discontinuities (i.e., bedding, joint planes) is one of the main effects of weathering in rock masses. It is also highly important for forecasting the geotechnical properties of a rock mass in the future. The effect is well known in most rock types, but the mechanisms of forming discontinuities and the resulting variation of mechanical discontinuities throughout a rock mass especially in sedimentary rocks such as sandstone in a tropical environment, are often still poorly understood. The aim of this research is to study and understand the discontinuity formation process in a tropical environment. In sandstone in Sabah, Malaysia, discontinuity spacing decreases with higher weathering grades as expected. Three main discontinuity sets are formed and the spacings of the discontinuity sets formed in the thickly bedded sandstone reduced. The discontinuity development is related to weathering processes and governed by predefined, i.e., incipient or internal, planes of weakness that originate during early stages of rock formation and in response to the past and present three-dimensional stress field(s). The paper is motivated by the need to evaluate the engineering implications of mechanical discontinuity sets that are not apparent in rock at lower grades of weathering but that will be formed as a consequence of on-going weathering processes. Springer-Verlag Berlin Heidelberg, 2014 Discontinuity nationallicence Weathering nationallicence Discontinuity spacing nationallicence Discontinuity development nationallicence Discontinuity formation nationallicence Integral discontinuity nationallicence Tating Frederick Earth Systems Analysis Department, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands aut Hack Robert Earth Systems Analysis Department, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands aut Jetten Victor Earth Systems Analysis Department, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands aut Bulletin of Engineering Geology and the Environment Springer Berlin Heidelberg 74/2(2015-05-01), 427-441 1435-9529 74:2<427 2015 74 10064 https://doi.org/10.1007/s10064-014-0625-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10064-014-0625-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tating Frederick Earth Systems Analysis Department, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands aut NATIONALLICENCE 700 1- Hack Robert Earth Systems Analysis Department, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands aut NATIONALLICENCE 700 1- Jetten Victor Earth Systems Analysis Department, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands aut NATIONALLICENCE 773 0- Bulletin of Engineering Geology and the Environment Springer Berlin Heidelberg 74/2(2015-05-01), 427-441 1435-9529 74:2<427 2015 74 10064