What degree must be maintained when installing earth anchor stakes for a unidirectional installation?

When installing earth anchor stakes for a unidirectional installation, it is essential to maintain a specific angle to ensure adequate holding strength and stability. The correct angle of 15 degrees allows for optimal resistance against the forces that the anchor will experience. This angle is crucial as it helps the anchor to effectively transfer loads into the soil, minimizing the risk of failure.

Maintaining this angle ensures that the pullout resistance of the anchor is maximized, as it creates a favorable geometric arrangement between the anchor and the soil. This can enhance the overall performance of the installation, contributing to the safety and reliability of the anchored system under various loading conditions.

In contrast, differing angles, such as 20 degrees, 5 degrees, or 10 degrees, may not provide the same effectiveness in load transfer and stability, potentially compromising the performance of the anchoring system.