A detection device and method for detecting the internal structure of a cave

Abstract

The invention discloses a detection device for prospecting an internal structure of a karst cave and a prospecting method thereof, relates to the field of the detection of the karst cave. The detection device comprises a first protection cover, a second protection cover, a third protection cover and a testing cable, wherein the first protection cover is connected with the third protection cover through the second protection cover, both the second protection cover and the third protection cover are made of a transparent material, a rotating camera, a laser head and a first illuminating device are arranged in the second protection cover, the rotating camera is fixedly connected with the first illuminating device, the laser head is arranged below a camera lens of the rotating camera, and the rotating camera is electrically connected with a power device and a signal conversion device; a second illuminating device is horizontally arranged inside the third protection device, and the bottom of the second illuminating device is provided with a depth camera for detecting the depth. By adopting the detection device and the prospecting method, not only can the existence of the karst cave be determined, but also the depth and internal attitude of the karst cave can be accurately prospected.

Description

technical field [0001] The invention relates to the field of karst cave detection, in particular to a detection device and a detection method for detecting the internal structure of a karst cave. Background technique [0002] In the process of building roads, bridges and railways, it is usually necessary to pre-explore whether there is a karst cave in the drilled hole, and to detect the internal structure of the karst cave. At this stage, the commonly used exploration methods include electrical prospecting, seismic prospecting, acoustic wave prospecting, gravity prospecting, Magnetic prospecting, radioactive prospecting and geological radar prospecting, radio wave perspective and seismic CT (Computed Tomography computer tomography) method. [0003] Existing exploration methods have the following defects: [0004] (1) Electrical prospecting, seismic prospecting, acoustic wave detection, gravity prospecting, magnetic prospecting, radioactive prospecting and geological radar p...

AI Technical Summary

Problems solved by technology

[0004] (1) Electrical prospecting, seismic prospecting, acoustic wave detection, gravity prospecting, magnetic prospecting, radioactive prospecting and geological radar prospecting can only determine whether there are caves, and it is difficult to determine the size and internal structure of the caves. It is necessary to adopt the same method for all caves. cleaning measures, the cleaning cost is higher

[0005] (2) The radio wave perspective method and the seismic CT method need to excavate the borehole in advance, and then set up the test instrument in the hole for detection. Due to the complex geological conditions in the cave, the resolution of the radio wave perspective instrument and the CT instrument are low. In the later stage, the image needs to be corrected multiple times, which not only increases the labor intensity, but also prolongs the construction period

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