Detector in hole

Abstract

The invention discloses a detector in a hole. The detector comprises a detector body; a pushing device, comprising a push rod driving device and a push rod component connected with the push rod driving device, wherein the push rod driving device is connected with the detector body, and the push rod driving device is used for driving the push rod component to press against the hole wall of a drill hole, so as to position the detector body into the drill hole; a force detection device, connected with a preset detection device of the push rod component, and used for detecting the acting force on the push rod component at the preset detection position; and a control device, electrically connected with the push rod driving device and the force detection device, and used for controlling the operation of the push rod driving device and receiving the force detection information of the force detection device. The detector in the hole can synchronously detect and adjust the pushing device, ensure the tight coupling of the detector and the surrounding rock of the drill hole, has the characteristics of being simple in structure, convenient to operate and reliable in coupling, and is also convenient to recycle for reuse.

Description

technical field [0001] The invention relates to the technical field of geological detection, in particular to an in-hole geophone. Background technique [0002] In the construction of tunnels and other underground projects, advanced geological prediction is particularly important. At present, the seismic method is mainly used for advanced prediction, that is, the status of the surrounding rock in front is judged by collecting seismic wave reflection signals, and faults, weak rock zones, karsts, and goafs are predicted in time. Areas and other unfavorable geological bodies. [0003] When the seismic method is used for advanced prediction, the geophone of the prediction system needs to be sent into the pre-drilled hole. Specifically, the geophone can be coupled with the surrounding rock of the borehole through butter, casing, machinery, etc. However, in the prior art, regardless of the coupling method, it is impossible to feedback the coupling between the geophone and the hol...

AI Technical Summary

Problems solved by technology

However, in the prior art, regardless of the coupling method, it is impossible to feedback the coupling between the geophone and the hole wall. Usually, it is necessary to manually push and pull the geophone in the hole to roughly determine the tightness between the geophone and the borehole wall. Ensure that the geophone is tightly coupled with the surrounding rock of the borehole

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