Johor Bahru, Malaysia
Johor Bahru, Malaysia

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Jusoh S.N.,University of Technology Malaysia | Mohamad H.,Petronas University of Technology | Marto A.,University of Technology Malaysia | Alias N.E.,University of Technology Malaysia | And 4 more authors.
Jurnal Teknologi | Year: 2016

Tunnel lining design is an interactive problem, which is not merely about the strength, but how much the lining could deform to accommodate the ground movement. When tunnel interacts with soil, stress from the ground is distributed onto the structure. In precast segmental tunnel lining, it is critical to investigate the lining reaction when applied with load, as this affects the overall flexural behaviour of tunnel lining. The objective of this paper is to understand the basis of tunnel lining mechanical behaviour response. A series of conducted flexural bending laboratory testing and developed numerical models presented here in order to discuss on the mechanics of segmental tunnel lining. By having two different support mechanisms, variation trend in load-deflection and moment bending curve depicted. Mirror trend of pin-pin support can easily be spotted in the results indicated segment lining affected by the load and support design. © 2016 Penerbit UTM Press. All rights reserved.


Lister A.M.,Natural History Museum in London | Lister A.M.,Climate Change Research Group | Fenberg P.B,Climate Change Research Group | Glover A.G,Climate Change Research Group | And 10 more authors.
Trends in Ecology and Evolution | Year: 2011

In the otherwise excellent special issue of Trends in Ecology and Evolution on long-term ecological research (TREE 25(10), 2010), none of the contributors mentioned the importance of natural history collections (NHCs) as sources of data that can strongly complement past and ongoing survey data. Whereas very few field surveys have operated for more than a few decades, NHCs, conserved in museums and other institutions, comprise samples of the Earth's biota typically extending back well into the nineteenth century and, in some cases, before this time. They therefore span the period of accelerated anthropogenic habitat destruction, climate warming and ocean acidification, in many cases reflecting baseline conditions before the major impact of these factors. © 2010 Elsevier Ltd.

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