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Combining Total Geological History and Other Approaches in Resolving Construction Dispute
( Abd Rasid Jaapar ),( Afiq Farhan Abd Rahim ),( Mohd Farid Mohd Dali ),( Dharam Singh ),( Mohd Fadhil Jasmee ) 대한지질공학회 2019 대한지질공학회 학술발표회논문집 Vol.2019 No.2
A dispute arose between Project Owner and Contractor over payment of the completed earthworks. The dispute was referred to arbitration on the volume of geomaterial had been excavated. Basically, it was an old issue on rock or no rock! The Contractor claimed the geomaterial is rock while the Project Owner claimed the geomaterial is not rock. A multidisciplinary geo-team, including engineering geologists, geotechnical engineers and GIS analysts was gathered to prepare the report. The approaches to the arbitration case used were the application of the total geological history, rock strength and SPT N-value to classify the ground while GIS was used to calculate the volume of geomaterial. The site-specific geological model is based on consideration of the regional and local geological and geomorphological history and of the current ground surface conditions. Results from boreholes were studied together with separate laboratory testing results of rock samples collected by the client during construction works. Extrapolation of rockhead was based on UCS ≥ 50 N60 (kPa). The volume calculation of rocks excavated was conducted using boreholes where rockhead had been identified together with as-built ground level (finish level). In this paper, the practical strategies involved in the total geology history approach as well as rock strength and SPT N-value are identified by describing its application for construction dispute.