Transverse wave excitation source device and using method thereof

Abstract

The invention provides a transverse wave excitation source device and a using method thereof. The transverse wave excitation source device comprises a telescopic support base, a guide wheel, a rigid rope, a rope winding component, an electromagnet, a limiting plate, a swing rod, an excitation hammer and a hammering component. When the device works, the electromagnet is powered on to generate magnetic force to attract the exciting hammer, the rope winding component acts, the electromagnet and the exciting hammer move upwards along an arc, the electromagnet is powered off to release the excitinghammer, and the exciting hammer knocks the hammering component fixed to the ground in the horizontal direction under the action of gravity to complete one-time transverse wave exciting. The transverse wave excitation source device is advantaged in that the excitation hammer is detachable, the size is selectable, and excitation energy can be controlled, transverse wave excitation can be quickly realized by absorbing and releasing the excitation hammer through the electromagnet, and the whole device is convenient to disassemble and assemble and suitable for field operation.

Description

technical field [0001] The invention belongs to the technical field of geophysical exploration, and in particular relates to a shear wave excitation source device and a method for using the same. Background technique [0002] Seismic waves are classified into two major categories: longitudinal waves and shear waves. Longitudinal waves refer to compression waves, that is, the vibration direction of protons is consistent with the direction of propagation; shear waves are shear waves, that is, the vibration direction of protons is perpendicular to the direction of wave propagation. Shear wave velocity is an important parameter to study the dynamic characteristics of rock and soil, which is of great significance to future research. [0003] However, in the prior art, the common seismic shear wave excitation source is mainly generated by two methods: artificial excitation or explosive detonator. However, the above methods have the following defects: 1) The artificial excitation ...

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Problems solved by technology

However, the above method has the following defects: 1) The artificial excitation method is to manually hold the sledgehammer to strike the source and the source vehicle, but the manual hand-held sledgehammer to strike the source has the problem that the excitation energy is too small to meet the exploration depth, and the A series of problems such as unstable energy and uncontrollable energy generation; although the excitation energy of the vibrator vehicle can meet the problem of exploration depth, there are a series of problems such as high requirements for working conditions, complicated operation and high cost

2) Explosives have a good excitation effect, but there are many restrictions on their use in cities

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