Contech Engineered Solutions - A-Jacks® Interlocking Concrete Jacks

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A-Jacks ® Interlocking Concrete Jacks A-Jacks are concrete armor units designed to interlock into a flexible, highly permeable matrix. The ability of the A-Jacks system...


Category: earthwork | erosion control | grass area stabilization...

MasterFormat: Erosion and Sedimentation Controls | Earthwork Methods | Soil Reinforcement



Contech Engineered Solutions
9025, Centre Pointe Drive
West Chester, OH 45069
Tel: (800) 338-1122

http://www.conteches.com

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Overview



A-Jacks® Interlocking Concrete Jacks

A-Jacks® Interlocking Concrete Jacks

A-Jacks are concrete armor units designed to interlock into a flexible, highly permeable matrix. The ability of the A-Jacks system to dissipate energy and resist the erosive forces of flowing water allows it to protect against scour and erosion.

Description


Streambank Stabilization, Scour Protection and Energy Dissipation

A-Jacks can be installed either randomly or in a uniform pattern. The voids formed within the A-Jacks matrix provide approximately 40% open space in the uniform placement pattern. These voids provide habitat for fish and other marine life when applied as a reef, revetment or as a soil support system in river applications. In addition, the voids may be backfilled with suitable soils and planted with a variety of vegetation including grasses, shrubs and trees above the normal base flow.

A-Jacks provide a cost-effective solution compared to conventional hard armor methods. Field tests and real-world applications confirm A-Jacks provide a flexible, non-eroding barrier. The patented, two-component design allows economical transport and on-site assembly.

Benefits of the A-Jacks System:

  • Unique design - Provide fast, hand-placed installation.
  • Meet guidelines - Adhere to HEC-23 design guidelines.
  • Cost-effective - Reduce velocity less expensively than cast-in-place alternatives.
  • Prevent undermining of stream toe - Help protect the entire slope to alleviate future issues.

Applications


A-Jacks® Interlocking Concrete Jacks

Armortec Solutions for Shoreline and Stream Bank Protection

The A-Jacks, ArmorFlex, and ArmorLoc systems offer permanent solutions to streambank erosion by armoring the area of maximum scour. These systems also promote native vegetation for a natural enhancement.


A-Jacks® Interlocking Concrete Jacks

A-Jacks for Bridge Scour Countermeasures

The A-Jacks system can dissipate energy and resist the erosive forces of flowing water, protecting channel boundaries from scour and erosion. Extensive laboratory research was performed on both model and full scale units in order to evaluate the hydraulic properties of the A-Jacks units. When the concrete armor units are installed along bridge abutments and downstream along the side of the water way, the toe is protected, the slope is stabilized, and the bridge is protected.


A-Jacks® Interlocking Concrete Jacks

ArmorFlex and A-Jacks for Pier Scour Protection

ArmorFlex and A-Jacks are accepted pier scour countermeasures according to Federal Highway Administration (FHWA) guidelines. These highly engineered systems provide a maximum factor of safety to critical structures.

Contech Engineered Solutions
9025, Centre Pointe Drive
West Chester, OH 45069
Tel: (800) 338-1122
E-mail: info@conteches.com
Web site: http://www.conteches.com





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