Representative Systems Current projects 2009/2010
|
|
| Temporary and Permanent Tiebacks | |||
 |
 |
 |
 |
| Evergreen Reservoir,
San Jose |
Tamien to Lick, San Jose | Tamien to Lick, San Jose | Flamingo Road, Las Vegas |
|
|
| Rock Anchors | Dam Strengthening | ||
 |
  |
 |
|
| SUNDIAL Bridge, Redding | Eastside Reservoir, Hemet | Combie Dam, Grass Valley |
|
|
| Design-Build Shoring | ||
 |
 |
 |
| New Bloomingdale's
Department Store, San Francisco |
Conservatory of Music, San Francisco |
Varian Physics Building Expansion, Stanford University |
|
|
| Tiedowns | |
 |
 |
| Rte 70 at Pulga | SR 125 Toll Road San Diego |
|
|
| Micropiles | |||
 |
 |
 |
 |
| Oroville-Quincy Highway | Palo Alto Medical Associated | New Bloomingdale's Department Store, San Francisco | San Francisco Airport |
|
|
| Soil Nailing/Shotcrete | ||
 |
SR 210
- Rte 30, Segment 1, 2 and 3A, San Bernardino, CA 140,000 sq. ft. of permanent soil nail/shotcrete retaining wall. Owner: San Bernardino Associated Governments (SANBAG) Prime Contractor: Yeager Skanska Inc. |
|
| ˆback | ||
 |
Sand Hill Road Widening, Palo Alto, CA Stanford University and the City of Menlo Park jointly contracted to improve the intersection at Sand Hill Road and Alpine Road. Part of the reconstruction required installation of a permanent soil nail retaining wall to support the embankment at the residence of the Stanford University Provost. Owner: Stanford University Prime Contractor: Top Grade Construction, Inc. |
|
| ˆback | ||
 |
The permanent soil nail wall is completed with a sculptured shotcrete layer to provide an esthetically pleasing appearance that blends in with the natural surroundings. |
|
| ˆback | ||
 |
Rancho Bernardo, San Diego, CA 45,000 sq. ft. of permanent soil nails and 20,000 sq. ft. of permanent tieback/shotcrete retaining wall Owner: Caltrans Prime Contractor: FCI Constructors Inc. |
|
| ˆback | ||
| Temporary and Permanent Tiebacks | ||
 |
Evergreen Reservoir, San Jose,
CA 15,000 sq. ft. of temporary tieback/shotcrete wall Owner: City of San Jose, CA Prime Contractor: Granite Construction Company |
|
| ˆback | ||
 |
Tamien to Lick, San Jose
CA 35,000 sq. ft. of permanent tieback/shotcrete wall Shotcrete for permanent facing Owner: Valley Transportation Authority (VTA) Prime Contractor: R&L Brosamer, Inc. |
|
| ˆback | ||
 |
Placing of reinforcing steel and geocomposite drains |
|
| ˆback | ||
 |
Flamingo Road, Las Vegas, NV Repair of MSE Wall Severe corrosion of the MSE wall’s reinforcing elements required strengthening of the wall to prevent potential failure. Some 204 Double Corrosion Protected (DCP) prestressed tiebacks were installed through the face of the wall to replace the horizontal loads once carried by the earth reinforcements. Owner: Nevada Department of Transportation Prime Contractor: Capriati Construction Corporation |
|
| ˆback | ||
| Rock Anchors | ||
 |
SUNDIAL Bridge, Redding, CA
Rock anchors to tie down the 217 ft. high pylon of the stay cable bridge designed by world renown Spanish designer Santiago Calatrava Owner: City of Redding Prime Contractor: Kiewit Pacific Co. |
|
| ˆback | ||
 |
Eastside Reservoir, Hemet,
CA High capacity rock anchors to anchor Inlet/Outlet Tower Owner: Metropolitan Water District of Southern California Prime Contractor: Atkinson-Washington-Zachry, A Joint Venture |
|
| ˆback | ||
| Dam Strengthening | ||
 |
Combie Dam, Grass Valley,
CA Like many dams built at the beginning of the century, the Combie Dam was rapidly approaching the end of its design life. Stabilizing the spillway with prestressed rock anchors was an economical solution to extend the life of such dams for several years. Owner: Nevada County Irrigation Department Prime Contractor: AVAR Construction Systems, Inc. |
|
| ˆback | ||
| Design-Build Shoring | ||
 |
New Bloomingdale's Department
Store, San Francisco, CA 25,000 SF of temporary shoring using soldier beam/lagging with temporary tiebacks. Scope of work also included underpinning and installation of 300 kips micropiles inside adjacent building Owner/Prime Contractor: Westfield Corporation Driven Pile |
|
| ˆback | ||
 |
Conservatory of Music, San
Francisco, CA AVAR provided the temporary shoring and underpinning support for demolition and reconstruction of this historic building, including the preservation of existing facades. Work included hand-dug underpinning pits to support existing columns as the basement was lowered by 12 ft. A new addition adjacent to the existing structure required 30 ft. deep excavation on the property line. AVAR designed and installed a temporary soldier beam and tieback shoring system for support of the excavation. Owner: San Francisco Conservatory of Music Prime Contractor: Swinerton Builders |
|
| ˆback | ||
 |
Varian Physics Building Expansion, Palo Alto, CA Stanford University's expansion of its physics laboratory required excavation of 40 feet below existing site grades adjacent to an active research facility. Because of the sensitivity of the magnetic fields generated inside the existing facility, tieback anchors could not be installed within 20 feet of the source. AVAR designed a sophisticated waler system, anchored on either side of the laboratory keeping the tiebacks away from the critical zones. An incremental stressing sequence was developed to transfer the loads from the center to the exterior beams. The balance of the site utilized a soldier beam and tieback system with shotcrete lagging. Owner: Stanford University Prime Contractor: Vance Brown, Inc. |
|
| ˆback | ||
| Tiedowns | ||
 |
Rte 70 at Pulga, CA Seismic retrofitting of bridge piers with 150 ft. long, large capacity Double Corrosion Protection (DCP) tiedowns Owner: Caltrans Prime Contractor: ACC West Coast, Inc. |
|
| ˆback | ||
 |
SR 125 Toll Road San Diego, CA Permanent Tiedowns for uplift resistance of column footings for new bridge construction Owner: Caltrans Prime Contractor: Otay River Constructors |
|
| ˆback | ||
| Micropiles | ||
 |
Oroville-Quincy Highway, CA New retaining walls and temporary shoring for construction of the highway embankment widening. Scope of work included the installation of 80 each 12" diameter micropiles and the design and construction of 20,000 SF of a soil nail/shotcrete wall for temporary shoring. Owner: FHWA Federal Highway Administration Prime Contractor: Viking/Stimpel-Wieblhaus, JV |
|
| ˆback | ||
 |
Palo Alto Medical Associated,
Palo Alto, CA Garage expansion required the addition of new shear walls. One of these walls extended to the existing basement. Because of the potential for liquefaction in the upper soils, a deep foundation system was required. With limited headroom of only eight feet, AVAR proposed the use of 12-125 kips micropiles. Owner: Palo Alto Medical Foundation Prime Contractor: Vance Brown, Inc. |
|
| ˆback | ||
 |
New Bloomingdale's Department Store, San Francisco, CA Owner/Prime Contractor: Westfield Corporation Micropile drilled with 12 ft. headroom |
|
| ˆback | ||
 |
San Francisco Airport Tiedown anchors for uplift resistance of tower bracing Beam set up to testing apparatus for 500 kip performance test Owner: City and County of San Francisco Prime Contractor: FCI Constructors |
|
| ˆback | ||