A blast hole measurement and logging apparatus, which generally comprises a housing configured to operatively house a solid-state LiDAR sensor array configured to transmit and steer pulses of light into a blast hole by shifting a phase of the pulses through the array to compile volumetric data of the sensor's field-of-view. Also included is a processor configured to receive the volumetric data from the LiDAR sensor, the volumetric data indicative of an internal volume of the blast hole which is useable in calculating an explosive charge according to a blast plan, the processor configured to store and/or transmit the volumetric data.
E21B 7/00 - Special methods or apparatus for drilling
E21B 47/003 - Determining well or borehole volumes
E21B 47/135 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range using light waves, e.g. infrared or ultraviolet waves
E21F 17/18 - Special adaptations of signalling or alarm devices
F42D 1/08 - Tamping methodsMethods for loading boreholes with explosivesApparatus therefor
F42D 3/04 - Particular applications of blasting techniques for rock blasting
G01B 11/22 - Measuring arrangements characterised by the use of optical techniques for measuring depth
G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
A blast hole measurement and logging apparatus, which generally comprises a housin configured to operatively house a solid-state LiDAR sensor array configured to transmit and steer pulses of light into a blast hole by shifting a phase of the pulses through the array to compile volumetric data of the sensor's field-of-view. Also included is a processor configured to receive the volumetric data from the LiDAR sensor, the volumetric data indicative of an internal volume of the blast hole which is useable in calculating an explosive charge according to a blast plan, the processor configured to store and/or transmit the volumetric data.
Provided is a blast hole measurement and logging apparatus (10) which generally comprises a housing (12) configured to operatively house a solid-state LiDAR sensor array (14) configured to transmit and steer pulses of light (18) into a blast hole (8) by shifting a phase of said pulses through the array to compile volumetric data of said sensor's field-of-view. Also included is a processor (22) configured to receive the volumetric data from the LiDAR sensor (14), said volumetric data indicative of an internal volume of the blast hole (8) which is useable in calculating an explosive charge according to a blast plan, the processor (22) configured to store and/or transmit the volumetric data.
Provided is an extensible spacer (14) for an inflatable blasthole plug (10) in the form of a collapsed bag (12). The spacer (14) includes a body (14.1) attached to the bag (12), and an associated leg formation (16) which may include leg segments (16.1, 16.2).
Provided is an extensible spacer (14) for an inflatable blasthole plug (10) in the form of a collapsed bag (12). The spacer (14) includes a body (14.1) attached to the bag (12), and an associated leg formation (16) which may include leg segments (16.1, 16.2).
patents
