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 are carried out by explosive technologies. The paper analyzes in detail a new method of determining the boundary of the explosion excavation. Its distinguishing features are the use of an impulse-hydrodynamic model for setting explosion problems and use of boundary problems of the theory of analytical functions. The new method is used in solving the problem of determining the boundary of the ejection excavation for the case of a buried charge. The results of calculations for the main geometric parameters of the explosion are given. The prospects for the development and application of the method are discussed.

Highlights

  • The energy of an explosion is a special type of energy that can be metered, its transfer does not require stationary communications, and its ability to perform work eliminates the need for complex working machines

  • Explosive technologies have found wide application at development of mineral resources [1, 2], at consolidation of grounds [3, 4], they are used at reception of underground tanks [5, 6], in tests of building designs on impulse influence [7]

  • At manufacture of some works there is a task of moving some weight of a ground in the set direction

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Summary

Introduction

The energy of an explosion is a special type of energy that can be metered, its transfer does not require stationary communications, and its ability to perform work eliminates the need for complex working machines. Its high concentration and enormous power characteristics have determined the special field for the use of the energy of explosion where other energy sources are ineffective. At manufacture of some works (building of road embankments, channels, foundation pits) there is a task of moving some weight of a ground in the set direction. Construction of various towers, power transmission towers, and foundations for bridge supports, special foundation pits for anchors and their concreting is carried out using explosive technologies. The first, short-term, is characterized by the propagation of the stress wave and a relatively small increase in displacements and velocities of the particles. At this stage, reflections may occur and destruction may occur

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