NDLI: An Extension of Marston’s Solution for the Stresses in Backfilled Trenches with Inclined Walls

Content Provider	Springer Nature Link
Author	Li, Li Dubé, Jean Sébastien Aubertin, Michel
Copyright Year	2013
Abstract	Infrastructure rehabilitation and development are very active fields around the world. Many of these activities involve the installation of conduits buried in trenches. The analysis and design of such conduits often rely on a solution developed by Marston and his coworkers who used the basic arching theory proposed by Janssen. This solution is theoretically only valid for vertical trenches, but it has been used for trenches with different wall inclinations, which sometimes leads to non-conservative stresses. In this paper, a more general solution for the stress state in backfilled trenches is developed based on the approach adopted by Marston and his coworkers. The effects of wall inclination and of a surcharge on top of the backfill are introduced in the analytical solution. Numerical modeling is performed and the results are used to adjust some components of the equations, leading to a more general solution. The good correlation between the vertical stress distributions given by the proposed solution and additional numerical simulations indicates that this new solution is representative of the stress state in backfilled trenches, and can thus be used for the design of infrastructure rehabilitation and development.
Starting Page	1027
Ending Page	1039
Page Count	13
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	31
Issue Number	4
e-ISSN	15731529
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-03-02
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Backfill Trenches Conduits Pressure Analytical solution Soils-structure interaction Arching effect Geotechnical Engineering & Applied Earth Sciences Hydrogeology Terrestrial Pollution Waste Management/Waste Technology Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

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