System and method for monitoring water inrush

A system for monitoring water inrush at a floor of a mine, comprising:

• a host terminal, a field host, at least one controller and at least one electrode array;
• wherein,
• the at least one electrode array is placed in at least one borehole at the floor of the mine and to detect electric field signals of surrounding rocks around the at least one borehole;
• each of the at least one controller connects with one of the at least one electrode array and is to control the electrode array to carry out a high-density induced polarization measurement on the surrounding rocks;
• the field host connects with the at least one controller and is to send control signals to the at least one controller, receive and process the electric field signals output by the at least one electrode array through the at least one controller;
• and
• the host terminal connects with the field host and is to receive the electric field signals processed by the field host, determine changes on apparent resistivity and apparent chargeability of the surrounding rocks, and determine whether there exists water inrush at the floor of the mine according to the changes;
• wherein,
• the electrode array comprise at least four electrodes connected in series connection and distributed at equal intervals;
• and
• the electrode comprises a circuit board and a copper ring;
• wherein,
• the circuit board connects with the copper ring;
• the circuit board comprises a control and amplification circuit and at least one switch;
• the circuit board is to control the copper ring to switch among the at least one switches and amplify electric field signals on the copper ring.