- Earth Retention and Retaining Walls

Earth Retention and Retaining Walls

EBS Engineering and Construction Limited can simplify your earth retention and retaining wall challenges. Grouted tendons and helical anchors can be used as tiebacks for retention walls.

Advantages of Helical Anchors:

•    No excavation or spoils to remove
•    Install in any weather conditions
•    Permanent or temporary (can be removed if necessary)
•    Install in limited access areas
•    Less equipment required
•    Immediate proof testing and loading (nothing to cure)
•    Predictable holding strength in all soils

Grouted Anchors (Micropiles):

•    Easy to handle, install and stress
•    Permanent or temporary (can be removed if necessary)
•    Anchor length can be increased on site
•    Install into hard soils and bedrock
•    Coupler system allow for supply of anchor in multiple sections
•    High load transfer between Threadbar® and cement grout

Helical anchors are installed by rotating into the ground with common rotary drilling equipment. Micropile tiebacks (grouted tendons or anchors) are installed by drilling out existing soil and replacing with a reinforced grouted column. Let EBS help you decide which is best for your project.

The success of the screw anchor tieback system is based on decades of similar use of CHANCE anchors by electric utilities. The proven reliability and engineered predictability of the system's performance give you tiebacks that are positive, economical and hassle-free.

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Helical Pier Diagram of Tension Application

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Soil Nailing for Retention Walls

When placed in the soil, a screw anchor acts as a bearing device. The SOIL SCREW Retention Wall System constructs a gravity wall to reinforce in-situ soil with screw anchors nearly horizontal. A grouted anchor (micropile) relies on friction between the soil and the grout. A helical anchor can remove performance uncertainties and reduces costs in low shear strength soils. Grouted anchors perform best in harder soils.

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Anchor sizes and grid spacing are determined by soil conditions and load requirements. A reinforced shotcrete veneer is often applied to the face. Modular components serve a wide range of projects. Design of the soil nailing system can be done using helical anchors or grouted tendons. Each has their pros, depending on the soil and site conditions.

A good contractor needs to have two strong elements: the right equipment and the right people. EBS has both!! We have the equipment to install retaining wall anchors and grouted tendons. Our experienced professionals can evaluate the soil conditions on your site in combination with the loads applied by the structure to propose a cost effective solution. All installing personnel are thoroughly trained and certified in installation procedures and are supported by the extensive technical-support services of EBS Engineering and Construction Limited.

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