City vehicle integrated geophysical detection system and working method

Abstract

The invention discloses a city vehicle integrated geophysical detection system and a working method. The invention integrates seismic wave, resistivity and radar detection, and is capable of avoidingmutual interference between different detection systems to enable each system to work synergistically and efficiently, thereby maximizing the characteristics and advantages of each detection system toachieve a fine exploration of city underground targets. The invention adopts several geophysical exploration methods and technology in combination to mutually reflect and complement each other, whichcan not only improve analysis quality and geological interpretation accuracy of the geophysical exploration results, but also meet the requirements of city surveying.

Description

technical field [0001] The invention belongs to the field of applied geophysics, and in particular relates to an urban vehicle-mounted comprehensive geophysical detection system and a working method. Background technique [0002] In order to break through the development bottleneck, solve the development dilemma, and enhance the driving force of economic growth in urban development, the development idea has changed to seek space underground and construct a three-dimensional smart new city. At present, my country's urban development is developing towards underground space, and the urban development model has shifted from surface-based flat development to surface-underground three-dimensional development. In the development process of urban underground space, when the construction of underground space encounters unfavorable geology such as water-rich and weak soil layers, underground loose layers, weathered and broken rock masses, and ground fissures, it is very easy to induce...

AI Technical Summary

Problems solved by technology

[0009] First, most seismic surveys use artificial single-point positioning drilling, installing explosives and inserting geophones for detection. Resistivity surveys also often cause damage to existing roads in cities to a certain extent, and require a lot of manpower and material resources. Efficiency lower

[0010] Second, the arrangement of surveying lines in resistivity survey and surveying network in seismic survey must be regular except for the special circumstances of terrain restrictions. However, the urban environment is more complex and the buildings are often dense. If you want to arrange regular surveying It is difficult to measure the line or network, and it is impossible to adapt measures to local conditions

[0011] Third, due to the complex urban environment, traditional ground radar cannot overcome the interference of various noises and clutter during detection, such as: coupling between transmitting and receiving antennas, multiple wave interference, radio stations, lightning discharges, solar activities, etc. Electromagnetic interference, in the process of resistivity exploration, external interference such as earth current and industrial stray current will often be encountered, and these interferences will cause many adverse effects on the final detection results

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