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Electricity-shaping tunnel geology detecting prognostication method and apparatus

A technology of geological exploration and tunneling, which is applied in measuring devices, electric/magnetic detection for well logging records, geophysical measurement, etc. It can solve the difficulty of signal analysis, the inability to obtain geological conditions on site, and increase the cost of geological forecasting, etc. problem, to improve the accuracy of judgment

Inactive Publication Date: 2008-07-23
WUHAN CHANGSHENG ENG EXPLORATION TECH DEV CO LTD
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Problems solved by technology

[0010] The above geophysical methods are intermittent geological detection methods, which cannot obtain the geological conditions in front of the detection on site. Greatly increased geological forecast costs

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  • Electricity-shaping tunnel geology detecting prognostication method and apparatus
  • Electricity-shaping tunnel geology detecting prognostication method and apparatus
  • Electricity-shaping tunnel geology detecting prognostication method and apparatus

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Embodiment Construction

[0036] Referring to FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , the system composition, hardware logic and work flow of the embodiment of the present invention are described.

[0037] Figure 1 shows the seismic tunnel geological detection and forecasting device: the field part includes the signal receiving part, the signal preprocessing part and the field host.

[0038] The signal receiving part includes a non-polarized electrode pair 1, a non-polarized electrode pair 2, a seismic sensor 3, and a coil 4; the two pairs of non-polarized electrodes for measuring geoelectric signals are arranged in a "+" shape. The signal receiving part is connected with the signal preprocessing part 5 . The signal preprocessing part 5 is mainly an amplifier group. The signal preprocessing part is connected with the central processing unit 8 through the A / D conversion of the data acquisition and processing module 7 .

[0039] The non-polarized electrode pair 1 and the non-polarized electrode pair 2 ar...

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Abstract

The invention discloses an earthquake tunnel geological detection prediction method and a relative device, which uses one earthquake sensor to measure the vibration strength signal generated by explosion, arranges two couples of non-polarized electrodes vertical with each other to measure the geo-electric signal generated by explosion, and / or using a coil to measure the electromagnetic signal generated by explosion. The invention uses the earthquake sensor, non-polarized electrodes and coil to receive the vibration strength signal, geo-electric signal and / or electromagnetic signal in the front, middle and later steps of explosion, arranges the two non-polarized electrode couples vertical with each other to measure the geo-electric signal generated by explosion, selects the large geo-electric signal as the parameters to recognize target geological disaster recognition. The invention normalizes the geo-electric signal and / or electromagnetic signal according to the vibration signal, uses the normalized geo-electric signal and / or electromagnetic signal as detection prediction parameters to be compared with the detection prediction parameter range of multiple target models, and uses the matched parameter range to recognize the grades of the target geological disaster prediction.

Description

technical field [0001] The invention relates to a seismic tunnel geological detection and forecasting method and device, which belongs to the technical field of electric method detection using geophysical seismic principles, and in particular to seismic seismic detection of water-containing bodies or other unfavorable geological bodies around the excavation surface used in blasting and excavation construction. Electrical detection and forecasting technology. Background technique [0002] Tunnel construction geological detection and prediction is the most important task of tunnel construction geological work. The main content of tunnel construction geological prediction includes the exposed positions of broken zones, karst caves, groundwater, coal strata and other unfavorable geological bodies in a certain range of space around the blasting face and impact on construction. [0003] The existing geological prediction methods for tunnel construction mainly include engineering ...

Claims

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Application Information

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IPC IPC(8): G01V1/00G01V3/26
Inventor 刘春生夏代林孟红霞刘小娟刘峻江
Owner WUHAN CHANGSHENG ENG EXPLORATION TECH DEV CO LTD
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