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Impact of New Method for Laying Separate Sewer System on Pavement Layers

Abbas, A, Dulaimi, AF, Shanbara, HK and Ruddock, F (2017) Impact of New Method for Laying Separate Sewer System on Pavement Layers. In: The 3rd BUiD Doctoral Research Conference . pp. 223-232. (The 3rd BUiD Doctoral Research Conference, 13 May 2017 - 14 May 2017, Dubai, UAE).

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Abstract

The method of installing underground infrastructure has a significant influence on road resistance and performance under live loads such as traffic. This research presents a new method for laying separate sewer systems by using one trench to sit both sanitary pipe and storm pipe and considers the effects of this approach on the pavement strength. Experimental tests have been conducted in the laboratory using a trench 2.5x0.45x1 metre to install two pipes one over the other (sanitary pipe in the bottom and storm pipe on top). Two cases have tested, the first case using 5 cm surface layer of cold mix asphalt while the second is using soil. A series of loads were applied to test the behaviour of this new system and its effects on the pavement surface layer and the buried pipe. The comparison between the rut print of the live load on the soil layer and the pavement layer was conducted. Results demonstrated that using the cold mix asphalt is still insufficient to provide enough safety to protect buried pipe as a reason of needing to relatively long time to acquire high stiffness. Therefore, minimum cover depth to protect pipelines still required.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TE Highway engineering. Roads and pavements
Divisions: Civil Engineering
Publisher: British University in Dubai
Date Deposited: 30 Jan 2019 09:42
Last Modified: 30 Jan 2019 09:42
URI: http://researchonline.ljmu.ac.uk/id/eprint/10070

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