Bever Team Online - Measurement While Drilling Module

Present the rock mass properties graphically by analyzing the drill logs from the jumbo

• Analysis of ready available drilling data can give important inputs to operation for increased safety and reduced operation cost
• Graphical 3D presentation of Interpreted Hardness, Fracturing, and Water
• Advanced analysis of drill logs from any drilling jumbo
• Near real-time analysis, data available for decision support on the spot
• Online system, wireless transfer from jumbo to cloud
• Automatically generated reports available in your web browser

Features:

• Web-based, accessible from any web browser
• Cloud database updated every few minutes
• Everyone works in the same version, and has access to the same "real time" information
• 3D-display and export into easy-to-send standard formats such as .pdf or .dwg
• Automatically generated reports, when you just want a quick update
• Generate your own reports
• Open system that facilitates in-depth analysis of data
• MWD maps of unfolded tunnel, or 3D
• 3D maps and coordinates of bolt drilling
• Option for shotcrete scanning with a rig-mounted Bever 3D Profiler
• Overburden calculations compared to design geometry

Methodology:

• The rock mass hardness is estimated based on a normalized and filtered penetration rate. The normalization process includes correction of varying average penetration rate, varying feeder- and hammer pressure at the start of the drilling, and filtering irrelevant data.
• The rock mass fracturing is estimated based on a variance calculation of the normalized penetration rate and rotation pressure. A gliding root mean quare value catches sudden changes in drillability within the rock mass.
• The water model is based on a normalized water flow. The normalizing corrects varying average water flow, incoming pressure and pressure drop in drill rods. Rapid changes in the amount of water is detected by calculating a root mean square value of the normalized water flow.