Phased array sound wave advanced detection instrument and advanced geological forecast method
A technology of advanced detection and phased array, which is applied in instruments, scientific instruments, seismology for logging records, etc., can solve the problems of small observation space, low resolution of seismic wave method, energy attenuation, etc., to improve detection resolution. efficiency, increased detection distance, and less construction interference
Pending Publication Date: 2022-01-21
SHANDONG UNIV
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Problems solved by technology
The inventor found that since the roadheader occupies most of the space behind the face of the tunnel during the excavation process, the side wall behind the face basically does not have the conditions for laying advance detection measuring lines and excitation devices and sensors, resulting in the possibility of advanced detection The observation space is extremely narrow, and the radar method with high precision cannot detect on the face, while the resolution of the seismic wave method is low, and there is serious energy attenuation and noise interference
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[0028] The present invention is further explained in conjunction with the accompanying drawings.
[0029] It should be noted that the following detailed description is illustrative and is intended to provide a further description of the invention. Unless otherwise indicated, all techniques and scientific terms used herein have the same meaning as commonly understood by those skilled in the art of the present invention.
[0030] It should be noted that the terms used herein are merely intended to describe embodiments, and is not intended to limit exemplary embodiments in accordance with the present invention. As used herein, unless the context further explicitly indicates that the singular form is intended to include multiple forms, but it should be understood that when the term "including" and / or "includes" in this specification, it indicates There is a combination of features, steps, operations, devices, components, and / or their combinations.
[0031] In order to solve the pr...
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The invention belongs to the field of advanced geological forecast in the construction process of a tunnel boring machine and provides a phased array sound wave advanced detection instrument and an advanced geological forecast method. The phased array sound wave advanced detection instrument comprises a sound wave array element group, a time control device and a pressure sensor, wherein the acoustic wave array element group comprises a plurality of acoustic wave elements, and each acoustic wave element is used for independently transmitting acoustic waves and receiving reflected waves; the time control device is used for controlling the excitation time of each sound wave element so as to excite a plurality of elements in a time-sharing manner or a time-merging manner so that deflection and focusing of sound waves are realized; the pressure sensor is used for measuring the pressure value between the phased array sound wave advanced detection instrument and the tunnel face so as to detect whether contact is good or not.
Description
Technical field [0001] The present invention belongs to the superior geological forecasting field during the construction of the tunnel, and in particular, the present invention relates to a phased array super probe instrument and advance geological forecasting method. Background technique [0002] The statement of this section is merely the background technology information associated with the present invention, which is not necessarily constituted in prior art. [0003] During the tunnel excavation, "security" is the first key, "high efficiency" is the ultimate goal. However, in the tunnel construction, the palm of the palm is easy to encounter, and the faults such as the fault, which is easy to lead to geological disasters such as collapse, roof, follower surgery. The adaptability of the rejugging machine on adverse geology is poor. When encountering the above geological disasters, it is prone to the abnormal damage of the drum, and the safety, progress and economy of the tunn...
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IPC IPC(8): G01V1/04G01V1/20G01V1/50
CPCG01V1/04G01V1/20G01V1/50G01V2210/62G01V2210/6169
Inventor 陈磊公志飞李凯付超赵阳李铎
Owner SHANDONG UNIV