Solutions

Dam Safety Assurance

This project called for the installation of 278 high-capacity, post-tensioned, multi-strand rock anchors. The anchors ranged in size up to 61-strands with test loads approaching 3000 kips. The anchors were installed in 15-inch diameter boreholes to deviation tolerances of less [ Read More… ]

Dam Safety Assurance

Sinkhole Grouting

Limited mobility grout is injected into void spaces within soil or rock, soft soils, or the soil-filled cavities of the bedrock, to improve the subsurface soil and rock conditions by filling the void spaces and replacing soft, loose soils with [ Read More… ]

Sinkhole Grouting

Maid of the Mist Shoring Wall

This project called for the installation of a wall for stabilization of an elevator shaft for access for maintenance and tourism of the Maid of the Mist facility.

Maid of the Mist Shoring Wall

State Road Highway Grouting

The limited mobility grout injected into void spaces within soil or rock, soft soils, or the soil-filled cavities of the bedrock, improved the subsurface soil and rock conditions by filling the void spaces and replacing soft, loose soils with high [ Read More… ]

State Road Highway Grouting

Slope Stabilization and Site Restoration

The project required a wall to retard a slide along a section of railway track. Due to space constraints, a pipe pile and lagging wall was selected to accomplish this task.

Slope Stabilization and Site Restoration

Large Scale Temporary Shoring Wall for Dam Rehabilitation

This project called for the installation of a temporary Soldier Pile and Lagging wall for soil retention for the rehabilitation and construction of a new spillway for a dam.

Large Scale Temporary Shoring Wall for Dam Rehabilitation

Precision Vertical Monolith Joint Drilling for Dam Waterstop Repair

The project required drilling two 8” diameter holes for the installation of new waterstops between the selected monolith joints within the dam structure. The holes were required to precisely follow the vertical joints between the monoliths and to deviate no [ Read More… ]

Precision Vertical Monolith Joint Drilling for Dam Waterstop Repair

High-Rise Student Housing Complex

CDE was called on for the installation of an earth retention system to allow the construction of a two-story below grade parking garage to serve as the foundation for a new high-rise student housing facility. To meet the requirements of [ Read More… ]

High-Rise Student Housing Complex

Water Treatment Tank Support – Northeastern US

Anchor construction commences with a detailed review and understanding of the anchor construction specification and project drawings. Dimensions and properties of permanent materials including all-thread-bar, plates and grout are determined. Additionally, for rock bonded anchors, the minimum embedment into rock, [ Read More… ]

Water Treatment Tank Support – Northeastern US

Railroad Track Wall Stabilization

This project called for a wall stabilization which consisted of the installation of 93, 30-foot solid bar nails into various underlying geotechnical conditions. Also, a two inch construction layer and a six inch final face of shotcrete was applied to [ Read More… ]

Railroad Track Wall Stabilization