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Network tunnel real time continuous leading preinforming method and device

A technology of advanced forecasting and tunneling, which is applied to measurement devices, re-radiation of sound waves, and electrical/magnetic exploration, etc., can solve the problems of difficult signal analysis, increased cost of advanced forecasting, and inability to obtain on-site geological conditions ahead of detection, and achieve Improve the accuracy of detection and forecasting, realize real-time data sharing, and facilitate the effects of stability and focus

Inactive Publication Date: 2007-01-31
WUHAN CHANGSHENG ENG EXPLORATION TECH DEV CO LTD
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Problems solved by technology

[0010] The above geophysical methods are all intermittent advanced detection methods, and the geological conditions ahead of the detection cannot be obtained on site. Significantly increased the cost of advanced forecasting

Method used

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  • Network tunnel real time continuous leading preinforming method and device
  • Network tunnel real time continuous leading preinforming method and device
  • Network tunnel real time continuous leading preinforming method and device

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Embodiment Construction

[0035] refer to figure 1 , figure 2 , image 3 and Figure 4 , illustrating the system composition, hardware logic and work flow of the embodiment of the present invention.

[0036] figure 1 Among them, the field acquisition and alarm system is mainly composed of electrode system 1 and field host 2, electrode system 1 includes shielding electrode A 1 , main electrode A 0 and infinity measuring electrode B, according to the different support methods and construction techniques on site, the shielding electrode A 1 The steel arch or anchor rod of the inner wall of the tunnel can be used, the main electrode A 0 Tunneling machine head, drilling trolley, drill pipe or anchor rod can be used, and the infinity measurement electrode B can adopt anchor rod or metal rod outside or inside the tunnel.

[0037] The field host 2 includes a built-in shield electrode pulse current emission control module 3 , a main electrode pulse current emission control module 4 , a main electrode re...

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Abstract

The invention discloses a latticing tunnel real time continuously leading forecasting method and the device. It includes the following steps: adopting metal component locating outside tunnel, on tunnel inner wall or working face field to arrange infinite distance measuring electrode B, shield electrode A1 and main electrode A0, and using cable to connect host computer at locality; the host computer emitting homopolarity impulse current of different voltage and receiving electric signal of main electrode, after processing and A / D covert, the digital signal would be input to CPU of host computer; the CPU testing apparent resistivity and apparent induced polarization ratio of the target object; comparing the tested apparent resistivity and apparent induced polarization ratio with the preset value range, the target object would be identified and displayed and alarming.

Description

technical field [0001] The invention relates to a networked tunnel real-time continuous advance prediction method and device, which belongs to the technical field of electric geophysical detection technology, and especially relates to the electric method advanced detection and prediction of water bodies or other unfavorable geological bodies in front of and around the tunnel excavation face technology. Background technique [0002] Tunnel construction advance prediction is the most important task of tunnel construction geological work. The main contents of tunnel advance prediction include the exposed position and opposite position of fracture zone, karst cave, groundwater, coal measure strata and other unfavorable geological bodies in front of the tunnel face and around the tunnel. construction impact. [0003] The existing advanced forecasting methods mainly include engineering geological survey method, advanced horizontal drilling method, advanced pilot tunnel method and...

Claims

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Application Information

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IPC IPC(8): G01V3/02G01V3/00
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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