Tie Back and Shotcrete Retaining Wall Repair
Our drill crew getting rolling on a Tie Back and Shotcrete Retaining Wall Repair in La Mesa. Structural design by Carl Josephson/Josephson-Werdowatz. Geotechnical Engineering by E. David Colbaugh/Evans-Colbaugh and QC/Materials testing by Christian Wheeler Engineering
Here is some fun footage of a job we just wrapped in in San Diego for an apartment project in the Mission Hills area. Groundforce did all of the Soil Nail Wall Work and Grading. Our guys really did a great job on this one. On to the next job!
A project in Los Angeles, CA consisting of upgrades to existing groundwater and storm water collection systems. Site work included the installation of additional lift stations, waterproofing, urethane grouting, force main piping, electrical controls, and shoring, along with holding and pump chamber installations.
Spring Valley, CA – A roadway improvement project to increase pedestrian safety. Cast in place retaining walls were constructed at existing side slopes to widen the street for sidewalk and curb ramp construction. In addition to the 2700 square foot cast in place retaining wall a 4250 square foot soil nail and shotcrete retaining wall was constructed in order to cut back a slope on the opposite side of the street.
A civil project in Chula Vista, CA applied box channel construction as a remedy for flood control. The work included extensive shoring using temporary soil nail walls (4,900 square feet) and storm water by-pass systems (2,950 lineal feet). Box channel cast-in-place concrete with (3155 cubic yards and 345,000 lbs. of rebar) was installed including 31,600 cubic yards of grading and the addition of 3 pedestrian bridges across the completed channel.
Micropile and foundation underpinning work on a commercial tilt up building in Carlsbad, CA. The building had experienced subsidence of the fill soils that resulted in floor tilt. Project work included the construction of 38 micropiles that were drilled to depths ranging from 33 to 48 feet. In addition each micropile was capped with a grade beam system to underpin the affected building perimeter foundation.
This project was for a custom home site in La Jolla, CA and included (7,200 cubic yards of grading, and 2,500 cubic yards of imported soil). Other work involved erecting temporary and permanent shoring walls, constructing a caisson pile foundation for masonry retaining walls, and some site drainage and demolition work.
This project involved foundation underpinning work providing stabilization to 7 homes at the end of a cul de sac in San Diego, CA. Each house was underpinned with cast in place grade beams. The houses were then mechanically jacked level with lifts ranging from 3 to 8 inches using a system of hydraulic jacks and sacrificial screw jacks. A total of 55,000 lbs of rebar were installed. In addition approximately 740 cubic yards of concrete was poured, along with the injection of 65 cubic yards of pressure grout to fill in underneath the lifted slabs.
This was a landslide repair to a slope that undermined four houses and a swimming pool in Oceanside, CA. The site work included the installation of tie backs (56 anchors with 300 kip loads) and reinforced shotcrete (225 Cubic yards). The project also included slope re-grading (14,000 cubic yards), and the reconstruction of an existing retaining wall.
A turnkey slope stabilization work site behind an estate home in Rancho Santa Fe, CA . The work included the tie back shoring of a wall (36 tie backs with 200 kip loads) to provide support to the house and swimming pool above the slope. A storm and site drainage system was implemented and 12,000 cubic yards of grading and re-vegetation were part of the project on this site.
Slope stabilization and slope repair work at a site in La Jolla Ca involved (10,800 Cubic yards) of grading, and the construction of caissons (48 caissons for slope stability with 36-inch diameters and 56 feet deep). The project included foundation underpinning to provide support for the houses above the slope. In addition were some site drainage repairs.
Groundforce can be seen here putting up the sculpted Shotcrete finish for a 600 foot long, 10,000 square foot Soil Nail Wall project for the folks at KB Home in San Marcos.
This is the first time we have worked with KB Home and we hope to do more in the future.
After six weeks of street closures and detours to traffic we have just finished
paving our roadway reconstruction project today for the 700 South Strand Project in Oceanside.
The work included demolition of the existing Seawall, utility work, reconstruction of the existing Rip Rap Revetment, Curb/Gutter/Sidewalk Improvements and a new section of Seawall.
Our Client McKellar McGowan Real Estate Development is also putting the finishing touches on the Building side of the job and the road is now open just in time for the Oceanside Triathlon scheduled for this weekend.
Groundforce has been busy getting this slope repair done before El Nino comes knocking on the door. The photo on the front shows our crew putting the final trim on the finished slope face. This project in Encinitas involved extensive Geo-grid reinforced slope reconstruction at 3 adjoining properties. In addition the site storm drainage system was upgraded and new landscaping was installed to help prevent future problems. The project Geotechnical Engineer was Terra Pacific Consultants, Civil Engineering was performed by Coffey Engineering and Construction Management Services were provided by Gilliland Construction Management.
Groundforce is an expert in performing repairs to properties with Drainage and Slope issues and can help property owners prepare and defend themselves against the upcoming El Nino.
Groundforce just completed Tie Back installation for the Zip Line ride at the San Diego Safari Park. If you look closely at the photo you can see a Rhino doing whatever it is that Rhinos do.
A set of 60 foot long tie backs were installed through a grade beam system to provide additional load capacity for the ride.
Project Structural Engineering was provided by Taquino Engineering. Geotechnical Engineering and Materials testing was provided by Southern California Soil and Testing
Groundforce has completed construction of a Seawall for the City of San Diego in La Jolla. The Seawall was constructed to prevent bluff erosion and undermining of the new City Lifeguard Station being constructed at the site.
The project required use of limited access drilling equipment. The wall was constructed with a series of tie back anchors and sculpted Shotcrete to simulate the surrounding bluff materials. The project General Contractor was Stronghold Engineering. Geotechnical Engineering was provided by Southern California Soils and Testing. Structural Engineer of Record was BWE/Burkett and Wong.
Working under contract with the City of Alhambra, Groundforce has just completed the Grandview Drive Wall Stabilization Project. The work included installation of 125 Soil Nails, 180 Cubic Yards of Reinforced Shotcrete, Wrought Iron Fencing and a Plaster finish at the shotcrete wall.
The project Geotechnical Engineer was David Colbaugh with Evans, Colbaugh and Associates. Soil Nail wall design was by Ricardo Jordan with Earth Support Systems, Inc.
Groundforce has completed the construction of a Tennis Pavilion at this Custom Estate site in La Jolla. Work included 6,000 Cubic Yards of Grading and Soil Export, construction of a 3800 square foot Soil Nail Wall, Storm Drains and Rip Rap Channel Lining. Project Geotechnical Engineering was by Terra Pacific Consultants, Civil Engineering was by Coffey Engineering and Soil Nail Wall Engineering was by Earth Support Systems.