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Developmental research of sustainable technologies to minimise problematic road embankment settlements

Ratha, N and Ismail, T N H T and Wijeyesekera, D C and Bakar, Ismail and Siang, A J L M and Abu Talib, M K and Zainorabidin, Adnan (2017) Developmental research of sustainable technologies to minimise problematic road embankment settlements. In: International PostGraduate Conference on Applied Science & Physics 2017, 7 December 2017, Johor, Malaysia.

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Abstract

Challenging, problematic and non-uniform ground conditions are a night mare to geotechnical engineers tasked with the design and construction of buildings and transport infrastructure. These often suffer undesirable structural settlements. Designing within the current understanding of geotechnics; settlement in peat and organic soils need to be recognised to include the known �primary and secondary consolidation characteristics� and the lesser known �tertiary consolidation phase�. These eventually contribute cumulatively to the consequential uneven and hazardous �bumpy road� surfaces. Undulating flexible road pavements result primarily from the transference of the heavy self-weight of the embankment fill to yielding and non-uniform subgrade. The adoption of conventional design/repair methods such as pile, vertical drain, soil replacement and soil stabilisation are expensive and inappropriate in very soft ground conditions. These then lead to unjustifiably high and repetitive maintenance costs. There being no one quick fix solution for all; pragmatic research must necessarily identify the best/progressively improved practical and sustainable solution. A viable solution is to develop criteria and explore the concept of a �masonry arch bridge structure/lintel-column structure� and adopting sustainable materials through pragmatic searching for appropriate recyclable waste materials. This will lead to the basis for a sustainable, innovative, strong, stiff, permeable composite mat structure that can be used on soft and/or yielding ground conditions. Conceptual lightweight fill technology including the popularly used expanded polystyrene (EPS) and the innovative composite mats recently being developed by the research team are outlined.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TE Highway engineering. Roads and pavements
Depositing User: Mr Abdul Rahim Mat Radzuan
Date Deposited: 31 Oct 2019 02:44
Last Modified: 31 Oct 2019 02:44
URI: http://eprints.uthm.edu.my/id/eprint/11932
Statistic Details: View Download Statistic

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