Ground fissure geological disaster measuring device

Abstract

The invention discloses a ground fissure geological disaster measuring device, which comprises an ultrasonic detection unit, wherein the ultrasonic detection unit comprises an ultrasonic transceiving probe; a deformation detection unit comprising a satellite positioning measurement type antenna; an image acquisition unit comprising a camera. Sliding rail mechanisms are arranged on the two sides of the ground fissure in the length direction, and positioning piles are movably arranged on the sliding rail mechanisms. A first positioning mechanism comprises a first telescopic cylinder arranged on the positioning pile, a second telescopic cylinder is vertically arranged at the output end of the first telescopic cylinder, and an ultrasonic transceiving probe is fixed at the output end of the second telescopic cylinder; a second positioning mechanism comprises a barrel arranged at the top opening of the ground fissure, a third telescopic cylinder and a fourth telescopic cylinder are arranged in the barrel, and the output end of the third telescopic cylinder and the output end of the fourth telescopic cylinder are oppositely arranged. According to the invention, the influence of environmental factors and the internal structure of the ground fissure on the detection result can be overcome, the measurement means of the ground fissure is perfected, and key parameters and important characterization are provided for accurately judging the stability of an excavation project.

Description

technical field [0001] The invention relates to the technical field of ground fissure engineering measuring devices, in particular to a ground fissure geological disaster measuring device. Background technique [0002] Ground fissures are mainly fissures or faults that occur in the soil layer. Ground fissures are often combined in multi-level echelon on the surface, and some can be connected into huge cracks. With a large number of engineering construction activities (such as underground ore body excavation, slope excavation, foundation pit excavation, groundwater exploitation, etc.), ground fissures are more and more common. Undoubtedly, the construction of these projects will inevitably lead to a certain scale of cracking on the surface around the excavation, and even cause geological disasters such as surface subsidence and landslides, which will bring serious damage to project construction activities and the safety of people's lives and properties. threatened to cause h...

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Problems solved by technology

[0003] However, due to the complex environment in the ground fissures, obstacles such as fillers or steel bars are often blocked in the ground fissures, causing the existing monitoring probe components to be disturbed. When detecting the depth, the existing monitoring probe components often detect obstacles. The depth of the current ground fissure will be judged and obtained at the time, and the error caused will have a serious impact on the subsequent engineering construction. Not only that, because the ground fissure is affected by the environment, its width dimension also has a deformation amount, and the measurement of ground fissures in general The width is all done manually, resulting in inaccurate measured values ​​when there is deformation in the ground fissures. Based on this, the existing ground fissure measurement technology is still not perfect, and there is a lot of room for improvement. Therefore, a new type of ground fissure is urgently needed. Fracture Geological Hazard Measuring Device

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