Pneumatic machinery acoustic wave water area shallow layer seismic exploration continuous impact seismic source apparatus

Abstract

The invention relates to a bump seismic origin device used for the seismic exploration in the shallow layer of water areas by the sound wave of a pneumatic machine, which comprises a supporting body and a pneumatic hammer on the motherboard of the supporting body, wherein, the pneumatic hammer is connected with an air compressor by an air delivering pipe; the pneumatic hammer comprises an outer shell body and a hammer head arranged in the cavity of the shell body; the lower side of the hammer head is connected with a return spring; the upper part of the hammer head is fixedly provided with a magnet; a working air chamber connected with the air delivering pipe and a magnetic substrate used for producing upward suction force for the magnet are arranged above the hammer head; the air delivering pipe is connected with a three-way electromagnetic switch valve used for controlling the air intake to the working air chamber of the pneumatic hammer or controlling the air in the working air chamber of the pneumatic hammer to be discharged outside in series; the three-way electromagnetic switch valve is connected with a control box; the motherboard of the supporting body is made of sheet metals at least at the area used for arranging the pneumatic hammer. The bump seismic origin device not only has the seismic origin of wide frequency band of good properties, fast aftershock reduction, proper energy and pulse of good properties, but also is beneficial to ocean ecology and environmental protection.

Description

technical field [0001] The invention relates to an aeromechanical sound wave water area shallow layer seismic exploration continuous shock source device, which can generate aeromechanical sound wave water area high resolution shallow layer seismic exploration continuous shock source, the source belongs to the field of geophysics shallow water area seismic exploration source, used Geophysical prospecting seismic reflection wave exploration in shallow waters. Background technique [0002] The depth of the target layer in geotechnical engineering exploration is generally in the depth range of tens to more than 100 meters, and the maximum generally does not exceed 200 meters. In order to obtain a good stratification of underwater overburden and bedrock by seismic methods in water areas, an appropriate seismic source must be selected. Due to the different frequency components of the seismic source, the resolution is different, and the penetration depth to the formation is also d...

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Problems solved by technology

Based on the shortcomings of the above two seismic sources, especially the electric spark source has adverse effects on the marine ecological environment, the use is subject to certain limitations

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