Abstract: The present invention relates to a cartridge of a metallic expansion cell for a rock destruction which includes a pressure tube that is installed at an inner wall of the casing in the section of the explosion wire and is formed of a certain material having a strong strength capable of enduring against a certain level pressure so that it is possible to prevent an earlier destruction of the casing of the portion near the explosion wire by a high temperature heat and impact wave energy when a large current is applied to the explosion wire, and a plasma channel formed by the explosion wire is guided in the direction of the casing.

Abstract: The present invention relates to an expansive cell composition for an electric rock destruction. The expansive cell composition is fabricated using metallic salt that is oxidation agent, metallic powder, and hydrocarbon compound. The composition is uniformly mixed at a certain composition ratio so that the composition is stably expanded by a high temperature heat and impact wave energy generated when a high current is fast discharged with respect to a metallic wire. A hybrid-oxidation and combustion reaction is obtained, in which a hybrid-oxidation and combustion reaction is performed, in which a flame oxidation reaction of metallic salt and metallic powder and a combustion oxidation reaction of a hydrocarbon compound by the flame oxidation reaction are mixed. The rocks are destructed by generating a vapor expansion force matching with a fracture ability class of rocks. Low noise and vibration are obtained when destructing rocks, and broken pieces of rocks do not fly away.

Abstract: The present invention relates to an expansion system using a plasma discharge in which in which a charged electric energy is fast discharged, so that a high pressure is generated within liquid based on an impact wave, which can be used in various industrial fields as a simple expanding method. The expansion system using a plasma discharge comprises a capsule for sealingly storing a certain liquid therein; a cable of which one end is connected with an expansion wire within a liquid of the capsule, and other end is connected to the outside of the capsule; and a controller that converts an external AC power inputted through a terminal into a DC power and indicates the power on a lamp and a voltage meter and applies a high voltage energy to the cable in cooperation with an operation of the push button, wherein an expansion is instantly achieved in the interior of the liquid.

Abstract: The present invention relates to an expansive cell composition for an electric rock destruction. The expansive cell composition is fabricated using metallic salt that is oxidation agent, metallic powder, and hydrocarbon compound. The composition is uniformly mixed at a certain composition ratio so that the composition is stably expanded by a high temperature heat and impact wave energy generated when a high current is fast discharged with respect to a metallic wire. A hybrid-oxidation and combustion reaction is obtained, in which a hybrid-oxidation and combustion reaction is performed, in which a flame oxidation reaction of metallic salt and metallic powder and a combustion oxidation reaction of a hydrocarbon compound by the flame oxidation reaction are mixed. The rocks are destructed by generating a vapor expansion force matching with a fracture ability class of rocks. Low noise and vibration are obtained when destructing rocks, and broken pieces of rocks do not fly away.

Abstract: The present invention relates to an expansion system using a plasma discharge in which in which a charged electric energy is fast discharged, so that a high pressure is generated within liquid based on an impact wave, which can be used in various industrial fields as a simple expanding method. The expansion system using a plasma discharge comprises a capsule for sealingly storing a certain liquid therein; a cable of which one end is connected with an expansion wire within a liquid of the capsule, and other end is connected to the outside of the capsule; and a controller that converts an external AC power inputted through a terminal into a DC power and indicates the power on a lamp and a voltage meter and applies a high voltage energy to the cable in cooperation with an operation of the push button, wherein an expansion is instantly achieved in the interior of the liquid.

Abstract: A blasting mat assembly comprising a steel plate member having thickness capable of bearing a blasting pressure of explosives inputted to blasting hole; an elastic member which is fixedly attached along a bottom edge of the steel plate member for isolating blasting noise, blasting gas and flying material. Explosives inputted into each blasting hole of blasting region are discharged; and a weight reinforcing member which is welded to a top surface of the steel plate member in a structure of a grid frame made of steel beams.

Abstract: A blasting mat assembly comprising a steel plate member having thickness capable of bearing a blasting pressure of explosives inputted to blasting hole; an elastic member which is fixedly attached along a bottom edge of the steel plate member for isolating blasting noise, blasting gas and flying material. Explosives inputted into each blasting hole of blasting region are discharged; and a weight reinforcing member which is welded to a top surface of the steel plate member in a structure of a grid frame made of steel beams.

Abstract: The present invention relates to a structure of slackening type blasting method and mat for excluding a part of sloping surface formed by base rock layer at one side or both sides of road upon establishing or expanding of the road or for excavating a part of middle portion of base rock layer made of non-free surface, and the invention is a slackening type blasting method which makes base rock layer of blasting region to be cracked whereby slackening from mother rock comprising: a blasting hole piercing step; a blasting lead wire connecting step; a blasting mat providing step which provides a steel plate member having a magnitude capable of covering whole of multiple blasting holes formed at each blasting region connected with said blasting lead wire, and a blasting mat of weight material in which elastic member surrounding around blasting holes of blasting region is attached to bottom portion of said steel plate member and weight reinforcing member made of I type or H type beam being a weight material is weld

Abstract: The present invention relates to a structure of slackening type blasting mat comprising a steel plate member having thickness capable of bearing a blasting pressure of explosive inputted to blasting hole; an elastic member which is fixedly attached by bolt along bottom edge of said steel plate member and isolating what blasting noise and blasting gas and flying away material of explosive inputted into each blasting hole of blasting region are discharged out to exterior; and a weight reinforcing member which is welded to top surface of said steel plate member in a structure as grid window frame, and which is made of steel frame material having heavy weight capable of bearing a blasting pressure.