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Full-arrangement seismic image observation system for positioning large drainage pipe culvert

A technology of observation system and drainage pipe, which is used in seismology, geophysical measurement, seismic signal processing, etc., to achieve the effect of improving detection efficiency and fast and accurate positioning

Pending Publication Date: 2022-03-08
SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a full-arrangement seismic imaging observation system for the positioning of large-scale drainage pipes and culverts, so as to solve the problems in the prior art

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  • Full-arrangement seismic image observation system for positioning large drainage pipe culvert
  • Full-arrangement seismic image observation system for positioning large drainage pipe culvert
  • Full-arrangement seismic image observation system for positioning large drainage pipe culvert

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 Shown is a full-array seismic imaging observation system for locating large drainage pipes and culverts, including:

[0020] Host 1, host 1 has an interface for displaying seismic image section images;

[0021] The seismic image detection survey line set on the surface above the drainage pipe culvert, the survey line is arranged perpendicular to the extension direction of the pipe culvert, and the length of the survey line is greater than 0.5 times the width or outer diameter of the pipe culvert;

[0022] The seismic source can be set as a vibrator device, and the vibrator device is electrically connected to the host 1 through the shock trigger cable 5, or can be set as a hammer with a trigger device;

[0023] A plurality of shock points 4 preset on the surface above the drainage pipe culvert and arranged at intervals ...

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Abstract

The invention discloses a full-array seismic image observation system for positioning a large drainage pipe culvert. The full-array seismic image observation system comprises a seismic image detection measuring line arranged on the ground surface above the drainage pipe culvert; the vibration source is arranged at the vibration excitation point; a plurality of detectors arranged at detection points; wherein all the detectors are equally divided into at least two groups along the direction of the measuring line, the positions of the detectors are alternately switched towards the extension direction of the measuring line in the detection process, and a detector rectangular array is formed on a seismic mapping plane; a plurality of shock excitation points arranged at intervals in the measuring line direction are preset on the earth surface above the drainage pipe culvert, and the seismic sources are sequentially located at the preset shock excitation points and gradually approach the detector distribution area. On the basis of a conventional measuring line arrangement structure, an observation system is improved, the collected data volume is increased, proper parameters can be selected without field testing, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of geotechnical engineering detection and testing, in particular to a full-arrangement seismic image observation system for positioning large-scale drainage pipes and culverts. Background technique [0002] Large-scale drainage pipes and culverts are important infrastructures of the urban drainage system, which play an important role in ensuring the orderly collection, transportation and treatment of urban sewage and maintaining the daily operation of the city. With the rapid development of urban construction, traffic is becoming more and more busy, road loads are increasing, road widening and reconstruction, and other surrounding engineering activities are more and more affected, resulting in certain safety hazards in large drainage pipes and culverts that are generally in disrepair at this stage. It is more and more urgent to protect it. However, due to the long history of large drainage pipes and culverts, the lack...

Claims

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Application Information

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IPC IPC(8): G01V1/18G01V1/20G01V1/30
CPCG01V1/181G01V1/20G01V1/301
Inventor 吴锋胡绕朱黎明刘伍唐睿张威
Owner SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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