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 present invention relates to an advanced geological prediction system for water inrush disaster sources based on three-dimensional focused induced polarization method in the construction of tunnels and other underground projects, in particular to a three-dimensional focused induced polarization for advanced geological prediction of water inrush disaster sources during the construction period of underground engineering instrument. Background technique [0002] my country is one of the countries with the most serious water inrush disasters in tunnels and other underground projects. economic loss and environmental damage. In order to prevent the occurrence of water and mud inrush disasters in tunnels and other underground projects, it is necessary to implement advanced geological forecasting during the construction period. The purpose of advanced geological forecasting work is to ascertain the geological conditions within a certain range in front of t...

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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