Induced polarization time domain transmitter equipment for advance geologic prediction for tunnel or underground tunnel
A technology of advanced geological prediction and induced polarization, which is applied in the direction of re-radiation, geophysical measurement, and acoustic re-radiation, can solve the problems of cumbersomeness, unfavorable judgment, and increase the multi-solution of induced polarization, and achieve simple operation, The effect of saving time and improving efficiency
Active Publication Date: 2011-04-20
山东百廿慧通工程科技有限公司
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Problems solved by technology
Although the application of induced polarization on the ground is relatively mature, the application in underground tunnels or tunnels is generally only a preliminary attempt. Because the detection environment of the tunnel and the ground is different, the ground detection is basically a half-space This is beneficial to the processing and interpretation of induced polarization; while the detection in most tunnels is equivalent to a nearly full-space interpretation problem, which increases the multi-solution of induced polarization, which is not conducive to various Abnormal judgment requires various processing, but the final interpretation result will be greatly affected
In addition, the induced polarization transmitters in the existing tunnels are basically copied from the ground, so the measurement in the tunnel is relatively heavy, not portable and flexible enough
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[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0026] figure 1 , figure 2 , image 3 Among them, the excitatory polarization time-domain transmitter equipment for advanced geological prediction of tunnels or tunnels includes a body, on which a control panel and terminals are arranged, a keyboard and a display are arranged on the control panel, and a single-chip microcomputer and a DC constant current are arranged in the body. The power supply, the pulsating direct current output by the DC constant current power supply is connected with the Hall isolation detector, and the Hall isolation detector is connected with the constant current control circuit and the single chip microcomputer.
[0027] The design of the DC constant current power supply uses an isolated inverter power supply, which includes a rechargeable battery pack, which is connected to the inverter, and outputs pulsating DC current to ...
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The invention relates to induced polarization time domain transmitter equipment for advance geologic prediction for a tunnel or underground tunnel. The transmitter realizes the constant current control of the current with the range adjustable from 0.1A to 1A and the step length of 0.1A, can adapt to different geology working conditions and has wide range of application; the equipment is controlled by a singlechip, adjusts square surface current, high level pulse width and power supply time, displays set parameters and load current real-time detection parameters in real time and is provided with start and cancel buttons which are greatly convenient for users, thereby improving the efficiency; 36V direct current power supply is adopted, three storage batteries can meet the requirements and the weight of the equipment is reduced; and high-voltage protection and over-current protection are adopted to ensure the safety of an instrument and working personnel, simultaneously the waterproof and dustproof standard IP-63 is adopted to ensure that the equipment can reliably work under the condition that the humidity is 100 percent, and special working requirements under complex environments of tunnel high humidity and the like are met.
Description
technical field [0001] The invention relates to a time-domain transceiving advanced prediction technology based on induced polarization in a tunnel or tunnel, in particular to a tunnel or tunnel advanced geological prediction excited polarization time-domain transmitter device. Background technique [0002] There are a large number of tunnel projects in the fields of water conservancy, hydropower and transportation in my country. Geological hazards in tunnel engineering are the key factors restricting tunnel construction. Often due to the unknown geological conditions ahead of tunnel excavation, unpredictable geological disasters often occur, such as water inrush, mud inrush, and collapse. Wait. In the process of underground coal mining, geological disasters such as Laokongshui are often encountered. The consequences of these geological disasters range from washing away machines and tools, flooding tunnels, and interrupting normal construction; Huge economic losses, and even...
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IPC IPC(8): G01V3/04
Inventor 李术才李树忱刘斌袁超聂利超
Owner 山东百廿慧通工程科技有限公司