Abstract
A revised version of the hb loading was published in BS 5400: part 2: 1978. This has a wider wheel spacing, closer axle spacing and greater tyre contact areas than the former version of the hb loading specified in BS 153: 1954. The loads on pipes buried under main roads due to the revised hb loading are given in this report, and are compared with those due to the former hb loading and also with those obtained from the simplified tables currently used to design buried rigid pipes. A computer program based on the classical boussinesq solution was developed for the present calculations in which the effects of the position of the hb vehicle relative to the pipe, the non-uniformity of the pressure distribution at shallow depths, and of varying the length of the pipe over which the average pressure is determined were considered. (Author/TRRL)
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More From: International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts
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