Detector in hole

A geophone and hole wall technology, which is applied in the direction of instruments, scientific instruments, seismic signal receivers, etc., can solve the problems that the coupling between the geophone and the hole wall cannot be fed back, and the tight coupling between the geophone and the surrounding rock of the borehole cannot be guaranteed. To achieve the effect of simple and efficient construction process, lower detection cost and simple structure

Active Publication Date: 2019-09-17
CHINA RAILWAY CONSTR HEAVY IND
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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 pu

Method used

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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] The core of the present invention is to provide an in-hole geophone, which can reliably ensure the tight coupling between the geophone and the surrounding rock of the borehole.

[0032] The orientation or positional relationship indicated in the description of the present invention is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descripti...

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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...

Claims

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Application Information

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IPC IPC(8): G01V1/18
CPCG01V1/181
Inventor 刘飞香郑大桥廖金军肖正航刘志友王肖易达云蒋海华徐震祝爽曹龙飞
Owner CHINA RAILWAY CONSTR HEAVY IND
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