Abstract
The method for determining the internal forces in longitudinal sections of the pipe wall based on the numerical analysis method has been proposed. The two-dimensional finite-element model simulating the annular section of the pipe and surrounding soil body are used. The external loads are presented as vertical pressures applied at the level of the pipe top +0.5 m. The calculation is performed by the iterative method with the account of the deformation parameters of the elements. The computation results conform well with the experimental data. DOI: http://dx.doi.org/10.5755/j01.sace.9.4.7420
Highlights
2014/4/9 shaped finite elements of the pipe wall in the cracking zones as well as change in the deformation module of the filling soil in the additional compaction zones 5 and 6
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The additional lateral back pressure of the soil filling the gaps between the pipes and the trench walls that just causes the reduction of the bending moments Мmax
Summary
2014/4/9 shaped finite elements of the pipe wall in the cracking zones as well as change in the deformation module of the filling soil in the additional compaction zones 5 and 6. This computation method makes it possible to determine the values of the internal forces of the bending moments in the rod-shaped elements simulating the pipe wall as well as the values of warping of the annular section of the pipe (changes in the vertical and horizontal diameter).
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