EXPLOSIVE BLAST FOR EXCITATION OF SEISMIC WAVES Russian patent published in 1997 - IPC

Abstract RU 2098843 C1

FIELD: geophysical investigations using explosive materials. SUBSTANCE: device has housing in which explosive material is located, and tray. Housing has cumulative recess and tray has recess which is in symmetry about cumulative one so that closed chamber which size is 3.10-4m3 per kg of explosive material is provided. Tray is made from material which dynamic strength against explosion is 1.107÷1,6.108 Pa. Wall thickness in cumulative flow region is not less than radius of cumulative recess base. Tray weight is not greater than triple weight of explosive material. In addition it has reflecting screen which is made from cylinder which diameter is equal to diameter of explosive blast. It has hole for detonator primer which is located in end of explosive blast. Reflecting screen is made from material which dynamic strength against explosion is 1.107-1,6.108 Pa. Thickness of cylinder h conforms to condition h≥0,2•mex/ρπ(d2), where mex is weight of explosive material, ρ is density of material of reflecting screen, d is diameter of explosive blast. In addition device has tight jacket which is located inside closed chamber. EFFECT: increased functional capabilities. 2 cl, 1 tbl

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RU 2 098 843 C1

Authors

Kazakov A.T.

Kazakov V.A.

Kondrikov B.N.

Annikov V.Eh.

Karpov V.D.

Puzyrev S.N.

Somkov A.A.

Maksimov V.P.

Budanov B.L.

Dates

1997-12-10Published

1995-03-15Filed