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EXPLOSIVE CHARGE WITH USING SUPERCONDUCTING MATERIAL

The following description of the explosive charge was issued as application No. 4415492 / 23-64957 for the issuance of an author's certificate of the USSR. The priority of the application was established on April 25, 1988.

Unfortunately, for a number of reasons (largely due to the reorganization in the early nineties of the patent office), the normal review of the application was not completed. No author's certificate was issued.

However, even now, the idea of ​​creating an explosive charge expressed in that old application deserves consideration. The essence of this idea was to use a magnetic pulse device as an explosive charge.

Structurally, the proposed charge consisted of a source of pulsed electrical voltage connected to an electromagnet located in a housing that was located in a charging chamber (for example, in a well). The surface of the body was proposed to be covered with a layer of superconducting material, which could increase the efficiency of the explosive charge by about two times.

The electromagnet and a layer of superconducting material were proposed to be used at the limiting values ​​of the magnetic field strength, i.e. At such values ​​that lead to both the destruction of the electromagnet and the superconducting material.

The destruction of the electromagnet and the superconducting material is not instantaneous, but in a certain time. The calculations made for the materials existing at that time showed that this time should be sufficient to form a shock wave in the rock mass surrounding the charging chamber. In this case, it was possible to count on a very significant charge power.

The actual destruction of the explosive charge after its operation did not matter anymore. At the same time it was possible to count on saving the most expensive part of the charge - the source of the pulsed electrical voltage.

The calculations performed in evaluating the characteristics of the proposed charge showed that it was entirely possible to expect the production of shock waves in terms of their characteristics comparable with shock waves that arise from the explosion of nuclear charges.

In this case, the proposed charge compared with pyrotechnic and nuclear charges would have a number of advantages. First of all, this is because, due to the lack of separation during the explosion of gases and the development of high temperature, a shock wave would not form in the air and a significant funnel would not form from the release of rocks.

Hence, it is possible to consider, as promising areas of its application, the use of a charge in crushing and softening (fracturing) large rock massifs, especially if there is a need to avoid a large volume of drilling and mining operations, when carrying out seismic studies, provoking earthquakes and movements of significant volumes Rocks, in the destruction of underground and land structures, if necessary forming a narrowly directed shock wave and secretive excitation of the shock wave.

print version
Date of publication 29.11.2003gg

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