摘要:
Disclosed is a system and a method for monitoring water inrush, including: a host terminal, a field host, at least one controller and at least one electrode array. Each electrode array is placed in one borehole and to detect electric field signals of surrounding rocks around the borehole; each controller connects with 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 controller and is to send control signals to the controller, receive and process the electric field signals output by the electrode array; 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 according to the changes.
摘要:
Disclosed is a three-dimensional digital virtual imaging device for stratigraphic texture of borehole core, wherein the probe depth counting pulley is mounted on the lifting wire frame, the output shaft of the motor is configured to drive the reel to rotate, and one end of the cable is connected to the cable transfer node of the retractable reel, the signal input end of the borehole imaging trajectory measuring probe of the on-site imaging host is electrically connected to one end of the cable through the cable transfer node of the retractable reel, the cable is wound on the retractable reel, a retractable line is controlled by the retractable reel, the cable is extended and retracted on the probe depth counting pulley, the probe depth counting pulley records the length of the retractable line of the cable, the depth feedback signal output end of the depth counting pulley is connected to the depth feedback signal input end of the on-site imaging host, the motor control signal output end of the on-site imaging host is connected to the control signal input end of the motor, and the signal output end of the borehole imaging trajectory measuring probe is connected to the other end of the cable. It can automatically generate borehole video, two-dimensional digital virtual borehole core image and 3D borehole trajectory in real time.
摘要:
Disclosed is a system and a method of transient electromagnetic advanced detection. The system includes a detection host, an electromagnetic signal transmitter, a probe, and a communication device. The system and method of transient electromagnetic advance detection disclosed by examples of the present disclosure can realize an early-warning through a transient electromagnetic advance detection in a borehole while drilling the borehole in a tunnel or a roadway.
摘要:
A borehole while-drilling electromagnetic tomography advanced detection apparatus includes a site host, a drilling rig, a detecting pipe screwed coupling on one end to a drilling stem of the drilling rig, a drilling bit screwed coupling to the other end of the detecting pipe, wherein the detecting pipe is provided with a probe comprising a transmitting coil, a receiving coil, an electromagnetic transmitting module, an electromagnetic receiving module, a SCM (Single Chip Microcomputer), a 3D electronic compass, a network interface of the probe and a first memory, in which the memory port of the SCM is connected to the first memory, and the network interface of the probe can be data-communicated with the site host.
摘要:
A borehole while-drilling electromagnetic tomography advanced detection apparatus includes a site host, a drilling rig, a detecting pipe screwed coupling on one end to a drilling stem of the drilling rig, a drilling bit screwed coupling to the other end of the detecting pipe, wherein the detecting pipe is provided with a probe comprising a transmitting coil, a receiving coil, an electromagnetic transmitting module, an electromagnetic receiving module, a SCM (Single Chip Microcomputer), a 3D electronic compass, a network interface of the probe and a first memory, in which the memory port of the SCM is connected to the first memory, and the network interface of the probe can be data-communicated with the site host.