A detection device with the function of fast detection of transient surface waves on hard ground

Abstract

The invention discloses a detection apparatus having a rapid detection function for a transient surface wave of a hard surface. The detection apparatus comprises a detector coupled with a hard surface rapidly to carry out data collection and a rapid arrangement device for arranging the detector. The detector includes a pedestal, a sensor element installed inside the pedestal, a connecting socket arranged at the top of the pedestal, and a coupling antenna arranged at the bottom of the pedestal; and a spherical structure is formed at the bottom of the coupling antenna. The rapid arrangement device includes two triangular-pyramid supports, a cross bar erected between the two supports, and elastic pins installed on the cross bar; metal rings with suspenders are arranged on the elastic pins; and the suspenders and connecting rings arranged at the top of the detector are detachably connected. According to the invention, rapid coupling of the detector and the hard surface is realized; arrangement time of the detector is substantially saved; and the working efficiency and precision of transient surface wave detection of the hard surface are improved.

Description

technical field [0001] The invention relates to the field of surface wave detection, in particular to a detection device with the function of fast detection of transient surface waves on hard ground. Background technique [0002] Surface wave prospecting is a new shallow geophysical prospecting method developed in recent years. It has the advantages of simplicity, rapidity, economy, high resolution, intuitive results, and small applicable sites. It has been applied in many fields and achieved good results. Apply effects. According to the different excitation sources, surface wave exploration is divided into steady state method, transient method and passive method. [0003] Transient surface wave geophones are often used in shallow foundations, rock mass detection, and concrete quality inspection. The linear arrangement and coupling degree of the geophone and the hardened surface determine the validity of the collected data and ultimately affect the accuracy of the test resu...

AI Technical Summary

Problems solved by technology

[0004] At present, the layout of transient surface wave detectors on hard ground mostly uses soft wires to connect one by one, and then manually judges whether the connection lines form a straight line to determine whether multiple detectors are on the same straight line and whether the distance between adjacent detectors is equal , also rely on manual use of a measuring stick to measure, and due to the complex hard surface of the test environment, it is difficult for the geophone to be quickly and smoothly arranged on the test work surface and quickly and effectively coupled, and its arrangement method not only requires the cooperation of multiple people to operate , time-consuming and labor-intensive, and the accuracy rate is low. More importantly, once the geophone is moved, all positioning and detection accuracy rates need to be re-executed, which greatly affects the work efficiency and accuracy rate and needs to be improved.

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