Browsing by Author "Disanayaka, KTD"

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    item: Conference-Full-text
    Analysis of geological structures for road cut failures: a case study along Balangoda – Haputale main road
    (Department of Earth Resources Engineering, 2016-07) Senarathna, CSS; Godaliyadda, DP; Disanayaka, KTD; Premasiri, HMR; Abeysinghe, AMKB; Weerawarnakula, S; Hemalal, PVA
    This study is focused on the causes for the road cut failures and suggest a methodology to design road orientation to minimize cut failures considering geology of the rock present in the area. In the past few years, several road cut failures have been recorded in Sri Lanka and there are development plans to construct expressways in hilly areas of the country. Hence, this study is important to minimize and control road cut failures while designing road orientation in a scientific manner. Several of studies were carried out to find the relationship between rock properties of the slope and occurrence of cut failures. This study helps to create a forecasting model for different scenarios. In this study, in order to validate the outcomes, some software were used. “DipAnalyst 2.0” is one of them and is a slope stability analysis software, which is designed to perform kinematic analysis for rock slopes and also calculating factor of safety values for plane and wedge failures based on the limit equilibrium theory. In this study, we identified that rock of the study area mainly dip towards the road (dip direction is parallel to the road direction). It is the main cause for lot of failures.
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    item: Conference-Full-text
    Analysis of Geological Structures for Road Cut Failures: A Case Study Along Balangoda – Haputale Main Road
    (2016-08-22) Senarathna, CSS; Godaliyadda, DP; Disanayaka, KTD; Premasiri, HMR; Abeysinghe, AMKB; Weerawarnakula, S
    This study is focused on the causes for the road cut failures and suggest a methodology to design road orientation to minimize cut failures considering geology of the rock present in the area. In the past few years, several road cut failures have been recorded in Sri Lanka and there are development plans to construct expressways in hilly areas of the country. Hence, this study is important to minimize and control road cut failures while designing road orientation in a scientific manner. Several of studies were carried out to find the relationship between rock properties of the slope and occurrence of cut failures. This study helps to create a forecasting model for different scenarios. In this study, in order to validate the outcomes, some software were used. “DipAnalyst 2.0” is one of them and is a slope stability analysis software, which is designed to perform kinematic analysis for rock slopes and also calculating factor of safety values for plane and wedge failures based on the limit equilibrium theory. In this study, we identified that rock of the study area mainly dip towards the road (dip direction is parallel to the road direction). It is the main cause for lot of failures.
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    item: Conference-Abstract
    Use of dipanalyst 2.0 software to analyse road cut slope failures
    (Engineering Research Unit, Faculty of Engiennring, University of Moratuwa, 2016) Premasiri, HMR; Senarathna, CSS; Godaliyadda, DP; Disanayaka, KTD; Jayasekara, AGBP; Amarasinghe, YWR
    This study the causes for the road cut failures and suggest a methodology to design road orientation to minimize cut failures considering geology and structure of the rocks present along road cuts. So this study is more important to minimize and control road cut failures while designing road orientation in scientific manner. This study is help to create a forecasting model for different scenarios. In this study to validate the outcomes some software’s were use specially DIPANALYST 2.0. It is a is slope stability analysis software, which is designed to perform kinematic analysis for rock slopes and also calculating factor of safety values for plane and wedge failures based on the limit equilibrium theory. Using the software all possible failures in the study area were analyzed and it can be further justify using other geological properties of rocks such as mineralogical composition.