Soil Nail Temporary Shoring – Soil Nails can also be used for temporary shoring, the application is ideal for deep cuts on congested sites. This solution uses easily mobilized equipment and does not require extensive steel fabrication. This approach minimizes start-up time and makes soil nailing an ideal application for deep cuts on congested sites.

THE SOIL NAIL LAUNCHER CAN BE FASTER AND LESS EXPENSIVE

Traditional soil nailing includes a long delay time for the cement in the drill holes to harden. Launched Soil Nails are effective immediately! The Launcher can work in tandem with the primary excavation, resulting in little or no delay for the shoring activity. Hollow steel bars can be used for the tensile inclusions, providing a myriad of Launched Horizontal Drains. Dewatering can add significantly to the speed and safety of the excavation. Where shotcreting is required, this can be scheduled for an evening activity. The Soil Nail Launcher can cut weeks off some construction schedules. Soil Nail Launcher, Inc can provide a wide range of permanent and temporary shoring options.

Temporary Shoring and Excavation Support
Project 1

OHIO DOT ROUTE 7

Ohio Department of Transportation awarded an embankment slide repair contract to Savage Construction of Wheeling, WV that included excavation of the slide mass and replacement with angular rock. As the excavation neared completion, a tension crack developed in the pavement above half of the cut. Traffic was being maintained at the top of the excavation, and there was concern that the excavation slope would fail before the contractor reached planned depth.

The DOT instructed the contractor to immediately replace some of the excavated material and halted the project. It was decided that temporary shoring was required to prevent the tension crack from developing into a full blown slide and taking the road out of service. The temporary shoring design and construction for this project was estimated to cost $200,000 and take 6-8 weeks to complete.

ODOT Geotechnical Engineer Jim Graham contacted Soil Nail Launcher, Inc. and requested a proposal to provide emergency shoring service. Soil Nail Launcher, Inc. completed the project in 4 days. Cost was about $40,000. The project schedule was kept on track. Launched Nails can save both time and money. Unlike traditional nails, Launched Nails are effective immediately.

Contacts:
Jim.Graham@dot.state.oh.us

Temporary Shoring and Excavation Support
Project 2

TENNESSEE DOT SAVES 3 WEEKS AND SEVERAL HUNDRED THOUSAND DOLLARS WITH LAUNCHED NAILS

TennDot had a major landslide on I-75 north of Knoxville. The solution was designed by their geotech group. Harry Moore and his group in their Knoxville office led this project that included a 100 foot high excavation on a 1:1 slope to key in a rock buttress. It was decided that the excavation should be temporarily shored. Harry estimated that traditional nailing would take perhaps a month to complete due to the constraints of the site. They elected to use Launched Nails. The work was completed in 4 days and within the active excavation. No delays were reported by the contractor. Harry expects that the total savings will be in hundreds of thousands of dollars.

Temporary Shoring and Excavation Support
Project 3

TEMPORARY SHORING - BELMONT COUNTY, OHIO

Launched Soil Nails can be used for temporary shoring, cutting days or weeks from the construction schedule. Launched Soil Nails are effective immediately - no waiting for grout to set. Launched Soil Nails are quick. Up to 13 Nails an hour. Excavation and Nailing can proceed at the same time. Note in this photo that there is not room on the platform for a traditional drill.

Belmont County Engineer, Fred Bennett, and Chief Deputy, Mike Wahl, contracted with SNL, Inc. to partner in replacement of a failed pipe piling wall with a geosynthetically reinforced soil wall. SNL, Inc. provided the shoring and construction assistance. Belmont County excavated the failed wall and constructed the state of of the art GRS Wall.

The alternate here was to lay the slope back, destroying the pavement and closing the road. One lane access and one lane of pavement were kept in place with the Launched Soil Nails, providing a safe work area for the wall builders below.

Contacts:
Mike Wahl, Belmont County Chief Deputy Engineer
mewcoeng@1stnet.com