Gregg Drilling is pleased to announce our new Remediation and High Resolution Site Characterization (HRSC) Divisions. With the addition of two new highly experienced team members, Gregg is now offering increased services from 3D modelling of MIP data to installation of remediation programs.
Several of Gregg's site investigation tools aid in gathering information about contamination at a site. The Membrane Interface Probe (MIP) is useful to screen for chlorinated solvents while the UVOST (laser induced fluorescence) Tool is useful to screen for hydrocarbons.
Gregg can now provide detailed 3D models of the data collected at a site to aid in further investigations or a plan for remediation.
Read more here
Late last week, the Mosaic Company released a statement informing the people of Polk County, Florida that a sinkhole had formed on the grounds of a fertilizer plant they operate. They went on to say that over 215 million gallons of "slightly radioactive" water flowed into the sinkhole and subsequently into the local aquifer.
A crack discovered in one of spillway monoliths at Wanapum Dam led to a need to stabilize the structure and prevent further damage. Grant County Public Utility District worked to investigate the problem, install anchors to stabilize the dam, and return the powerhouse to full operations.
Researchers along with USGS believe they may have developed a theory to explain the mid-plate earthquakes of the New Madrid Seismic Zone. They theorize that super dense rock exerts a gravitational pull on the terrain above creating a higher likelihood that faults in the NMSZ will slip.
PDI-TOMO Helps GRL Evaluate Shaft Featured
Crosshole Sonic Logging (CSL) evaluates the integrity of the concrete of drilled shafts and other cast-in-place deep foundations. Ultrasonic transmitters and receivers are inserted in water-filled tubes pre-installed in the foundation.
Bentley Systems announces OpenRoads ConceptStation, a conceptual modeling application that empowers highway engineering professionals to quickly create conceptual road and bridge models in a matter of hours – not days.
Useful preliminary findings from the earthquake sequence in central Italy unveiled by an Italy-US GEER team's engineering reconnaissance.
Humboldt Maturity Meters provide a predictable strength determination of cast-in-place concrete based on ASTM standard C1074-98 (Estimating concrete strength by the maturity meter method). These units utilize inexpensive, disposable, T-type thermocouple wire with quick-connect jacks, which can be embedded directly into a concrete structure to measure temperature at timed intervals. These readings can then be used to document the maturity process within the structure in order to:
- predict the time for form and shoring removal;
- estimate loading and post-tensioning time;
- control winter heating/insulation, and
- reduce construction time and costs through accurate maturity readings.
The H-2680 and H-2682 have four channels, and provide the maturity number calculation, instant readout and temperature history on a menu-driven alphanumeric display. A communications port allows information to be transferred from the meter to another meter, printer or computer. The H-2682 provides the use of a rechargeable nickel-cadmium battery, which can be used to enhance performance in cold weather applications.
Read more about Meter Set here
Plans have been unveiled to expand the Paris metro system to connect the city with the greater Ile de France area.