-237310 Highway, Street, and Bridge Construction including bridge jacking, bridge repairs, drainage structures, culverts, arches, and concrete strengthening, epoxy injection, hydrophilic grout Injection
, helical anchors, and bearing replacement
The key focus area of the company includes piling, jetgrouting, CFA, diaphragm walls, drilling, grout injection
, soil mixing, vibroflotation, Lugeon tests, mineral investigation.
This work includes 19100 feet drilling and 795 tons of grout injection
There were three phases to this conversion: design and qualifications of SSGT, design and build of subsea grout injection
system, and hyperbaric testing.
The discussion of grouting equipment now includes consideration of automated batching equipment and computer-assisted equipment for real-time monitoring and control of grout injection
Pier 1 was repaired well with a large amount of grout injection
in the vertical and lateral direction, while a less volume of grout was filled in Pier 2.
Once the grout injection
phase was completed, crews entered the manhole to confirm that all running sands had been stopped.
DAT instruments is an Italian company that specializes in the design and production of instruments and software used in special foundation jobs such as piling, jet grouting, CFA, diaphragm walls, drilling, grout injection
, soil mixing and vibroflotation.
After oakum packing, and before grout injection
, a tracking dye is pumped into the bedding, to verify that injection holes have been drilled in the right area--if dye isn't seen coming through the leaks, the drilled hole has to be relocated.
After thoroughly cleaning the lines, Gelco pulled a remote-controlled TV camera and chemical grout injection
packer through the pipeline.
After repair locations were confirmed by corrosion mapping, Willbros crews welded the repair sleeve components around the line and prepared the oversized sleeve for grout injection
. After grouting, cathodic protection test facilities were installed and the repair location was recoated and backfilled.