Research Article Analysis of Disturbing Influence of Traffic Load on Soil Body Janat Musayev 1 and Algazy Zhauyt 2 1 Department of Transport Engineering and Technologies, Kazakh Academy of Transport and Communications Named afer M.Tynyshpayev, Almaty 050012, Kazakhstan 2 Department of Applied Mechanics and Basics of Machine Design, Kazakh National Technical University Named afer K.I.Satpaev, Almaty 050013, Kazakhstan Correspondence should be addressed to Janat Musayev; mussaev1975@mail.ru Received 18 October 2014; Revised 30 November 2014; Accepted 21 December 2014 Academic Editor: Binbin Weng Copyright © 2015 J. Musayev and A. Zhauyt. Tis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Stress waves propagate in soil in case of earthquake and man-made efects (trafc fow, buried explosions, shield-driven pipes and tunnels, etc.). Te wave point-sources are those located at the distances equal to more than two waves lengths, which signifcantly simplifes solving of a problem of these waves’ strength evaluation. Distribution of stress and displacement by the stress waves propagation in elastic medium is a complex pattern. Te stress distribution in propagating waves depends on the type and form of source, conditions of the source contact with medium, and properties of mediums in the vicinity of the source. Te point-sources and their combinations are selected in such a way to model an infuence of machines and processes on soil body in case of shield- driven pipes (tunnels). 1. Introduction In confned environment the wave pattern becomes more difcult due to the boundary refection of waves. For eval- uation of diferent factors infuence on the nature of waves propagation it is convenient to divide the waves propagation problem into several stages. At the frst stage tasks of waves propagation in infnite medium from the point-sources of the following diferent types are reviewed: (i) concentrated force, (ii) double force without moment (two concentrated forces acting contrariwise along one line and applied at small distance 2 h from each other), (iii) two double forces without moment (double couple without moment) acting at right angles and in a single plane, (iv) three double forces without moment acting in three orthogonally related directions (center of expansion), (v) double forces with moment (couple of forces), (vi) combination of two couples of forces with sum of moments equal to zero, (vii) uniform pressures in alveole at a section in length , (viii) tangential stresses applied at a section of alveole contour in length , (ix) tangential stresses applied to alveole contour in length . Solution of tasks enables evaluation of types of wave sources’ infuence on the type and parameters of waves propagating over a distance. At the second stage tasks of wave propagation from the point-sources in semi-infnite elastic medium are reviewed. At this stage tasks of vibration of semi-infnite elastic medium surface from diferent point-sources of waves at various depths with account of waves refected from free surface are solved. Te solutions make it possible to evaluate a dynamic impact on the environment in case of earthquake, as well as the dynamic impact of diferent devices and machines used for underground works. Tis paper deals with a task of waves propagation from the point-sources of diferent types in the Hindawi Publishing Corporation Advances in Materials Science and Engineering Volume 2015, Article ID 318289, 7 pages http://dx.doi.org/10.1155/2015/318289