Heavy-hammer type seismic exploration focus

Abstract

The invention discloses a heavy-hammer type seismic exploration focus, and the seismic exploration focus comprises a support, a guide mechanism and a focus mechanism. The support comprises a supporting mechanism with the adjustable height, and a top plate. The focus mechanism comprises a heavy hammer mechanism, an elevator, and an excitation steel plate which generates a seismic wave under the action of the heavy hammer mechanism. The elevator is connected with a traction rope through a pulley drive mechanism. The guide mechanism comprises an upper guide rod and a lower guide rod, wherein thecross section of the upper guide rod is less than the cross section of the lower guide rod. The elevator comprises a pulley substrate, a frustum part and a pedestal. The lower part of the frustum partis sleeved by a sliding ring, and the frustum part is uniformly provided with inner steel balls in the peripheral direction. The sliding ring is uniformly provided with external steel balls in the peripheral direction. The heavy hammer mechanism comprises a clamping disc and a heavy hammer, wherein the heavy hammer is fixedly connected with the clamping disc. The focus is simple in structure, islight in weight, is convenient to carry and convey, is convenient and easy to operate, and can generate high-energy seismic waves, so as to adapt to various types of outdoor operation environments.

Description

technical field [0001] The invention belongs to the technical field of geophysical exploration, in particular to a heavy-hammer seismic exploration source. Background technique [0002] At present, in the geophysical exploration of shallow formations, the most commonly used sources are hammer, explosives, air guns or vibroseis vehicles. The traditional hammering source, the most used is a 24-pound or 30-pound hammer. The user holds the hammer and hammers to the ground to generate elastic seismic waves. However, the seismic wave energy generated by this percussion method is limited, the excitation energy is small, and the test depth is limited. , and the energy of each hammering cannot be controlled to be exactly the same; and explosives and air guns are items controlled by public security organs, which are difficult to apply for, destructive and dangerous. There are a lot of inconveniences, and it is easy to bring potential safety hazards; while the vibrator vehicle adopts ...

AI Technical Summary

Problems solved by technology

The traditional hammering source, the most used is a 24-pound or 30-pound hammer. The user holds the hammer and hammers to the ground to generate elastic seismic waves. However, the seismic wave energy generated by this percussion method is limited, the excitation energy is small, and the test depth is limited. , and the energy of each hammering cannot be controlled to be exactly the same; and explosives and air guns are items controlled by public security organs, which are difficult to apply for, destructive and dangerous. There are a lot of inconveniences, and it is easy to bring potential safety hazards; while the vibrator vehicle adopts a mechanical method to lift heavy objects and hammer the ground downward to generate elastic seismic waves. It weighs hundreds of kilograms or tons, and the transportation cost is high. Some places with impassable roads are difficult to reach, and it is not convenient for field operations and transportation.

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