About explosive technology of building road embankments, tunnels, canals

Abstract

Abstract Performing different works (construction of road embankments, canals, tunnels, moving some soil mass in a given direction), as well as construction of various towers, power transmission supports, foundations for bridge supports, special pits for anchors is carried out by explosive technologies. When carrying out excavation works related to the construction of road embankments, trenches, wells, cord charges are used. From the mathematical point of view, the calculation of such charges presents the problem of determining the movement of soil particles in the plane perpendicular to the axis of the corded charge. Calculation of geometrical characteristics of the above construction works is based on impulse-hydrodynamic setting, having “liquid” and “solid-liquid” varieties. The work gives two examples of calculations within both productions. In the first problem, within the framework of the solid-liquid model, the entire boundary of the channel is determined in the case of an explosion of a square charge, while in the second problem the explosion of two charges, when there is a circular cylinder in the ground, is investigated.