Underground construction water burst source advance geology forecast three-dimensional focus induced polarization equipment

Abstract

The invention discloses underground construction water burst source advance geology forecast three-dimensional focus induced polarization equipment which comprises a constant current multipath transmitter, a multichannel intelligent receiver, a multipath electrode automatic translator, an industrial personal computer, an observation electrode array and a bucking electrode. Electrodes in the observation electrode array are chosen to serve as a power supply electrode and an observation electrode respectively. The industrial personal computer controls the constant current multipath transmitter to transmit currents of the same nature to the bucking electrode and the power supply electrode so as to enable currents of the power supply electrode to almost point to the front of a tunneling face under the action of the bucking electrode. Scanning data collection is conducted by utilizing the observation electrode, and the collected data back feed to the industrial personal computer through the multichannel intelligent receiver. The industrial personal computer controls the multipath electrode automatic translator to change the power supply electrode. Multipath power supply and multipath collection are achieved by the underground construction water burst source advance geology forecast three-dimensional focus induced polarization equipment, directional detection of a tunnel face is achieved, directivity of the currents is good, and the problem of side interference nearby a measuring line is effectively solved so that background interference data are small, forecast accuracy is improved, and detection range is increased.

Description

Technical field [0001] The invention relates to a water inrush hazard source advanced geological prediction system based on a three-dimensional focused induced polarization method in the construction of underground engineering such as tunnels, and specifically to a three-dimensional focused induced polarization of water inrush hazard source advanced geological prediction during underground engineering construction instrument. Background technique [0002] my country is one of the countries with the most serious water inrush disasters in underground engineering such as tunnels. The casualties and economic losses caused by water and mud inrush disasters are in the forefront of various types of tunnels and other underground engineering geological disasters, often causing heavy casualties and serious injuries. Economic losses and environmental damage. In order to prevent the occurrence of water inrush and mud outburst disasters in underground engineering such as tunnels, advanced geo...

AI Technical Summary

Problems solved by technology

The non-focused induced polarization advanced prediction equipment is to arrange the detection line on the side wall or floor of the tunnel. The side interference near the line often conceals the useful information in front of the excavation face of the tunnel, and the location of the source of the water inrush disaster The low accuracy and poor reliability of water volume prediction often lead to errors in geological detection results and affect the safety of tunnel construction

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