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Integration of direct and indirect techniques to optimize subsurface exploration

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dc.contributor.author Wijesinghe, LV
dc.contributor.author Ineshka, WSS
dc.contributor.author Sutharsini, S
dc.contributor.author Jayawardena, CL
dc.contributor.author Samaradivakara, GVI
dc.contributor.editor Hemalal, PVA
dc.date.accessioned 2022-07-26T08:50:00Z
dc.date.available 2022-07-26T08:50:00Z
dc.date.issued 2016-07
dc.identifier.citation Wijesinghe, L.V., Ineshka, W.S.S., Sutharsini, S., Jayawardena, C.L., & Samaradivakara, G.V.I. (2016). Integration of direct and indirect techniques to optimize subsurface exploration. In P.V.A. Hemalal (Ed.), Proceedings of the ERE 2016 Annual Conference on Earth Resources Management (pp.101-107). Department of Earth Resources Engineering, University of Moratuwa. en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/18465
dc.description.abstract Subsurface exploration is one of the major activities conducted to extract information for Geotechnical applications. Borehole construction is the most common direct exploration technique which provides exact information on a particular location whereas, Electrical Resistivity Method is one of the commonly practiced indirect exploration techniques. Since the exploration costs are relatively high, minimizing the cost while obtaining adequate information is of everyone’s interest. For larger constructions with deep foundation requirements, determining the overburden thickness (bedrock level) and water table is a mandatory requirement. Hence, the use of a proper combination of direct and indirect subsurface exploration methods could result a considerable cost reduction and time saving. This study was conducted to find an optimum integration of resistivity method and borehole construction for selected subsurface exploration activities currently in progress. Accordingly, resistivity surveys were conducted at sites proposed for a twelve storied residential tower at Malabe and Matara – Kataragama Railway Extension Project, near piers for new railway track. Apparent resistivity data were gathered using ABEM – Terrameter SAS 1000 instrument, were interpretated using “IP 2 Win” software. The results were validated using the borehole information. The resistivity survey information revealed a close relationship with the borehole data and resides within the statistically acceptable range. Hence, an optimum combination of resistivity surveying and borehole construction can be proposed, for cost controlling at large-scale subsurface explorations. en_US
dc.language.iso en en_US
dc.publisher Department of Earth Resources Engineering en_US
dc.subject Resistivity survey en_US
dc.subject Overburden thickness en_US
dc.subject Groundwater table en_US
dc.title Integration of direct and indirect techniques to optimize subsurface exploration en_US
dc.type Conference-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Earth Resources Engineering en_US
dc.identifier.year 2016 en_US
dc.identifier.conference ERE 2016 Annual Conference on Earth Resources Management en_US
dc.identifier.place Katubedda en_US
dc.identifier.pgnos pp. 101-107 en_US
dc.identifier.proceeding Proceedings of the ERE 2016 Annual Conference on Earth Resources Management en_US
dc.identifier.email chulanthaj@uom.lk en_US


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