Anchors and methods for anchoring an underground storage tank

1. An anchor for anchoring an underground storage tank, the anchor comprising:

a composite base comprising:

a footing; and

a spine extending upwardly from the footing so as to define footing portions on either side of the spine;

wherein the footing and the spine have a composite composition comprising:

a matrix material; and

a reinforcement structure embedded within the matrix material; and

a retention mechanism connected to the spine of the composite base for retaining a hook for anchoring the underground storage tank, wherein the retention mechanism further comprises:

an opening in the spine;

a first chamber and a second chamber extending from the opening in generally opposed relation to each other in the spine;

a retention member comprising a first end and a second end respectively insertable into the first chamber and the second chamber, the retention member being sized and configured to be displaceable between:

an open position where the first end of the retention member is located within the opening and is insertable through the hook; and

a closed position where the first end is located within the first chamber and the second end is located in the second chamber, thereby retaining the hook with respect to the retention member.

2. The anchor of claim 1 , wherein the footing portions are about equally sized.

3. The anchor of claim 1 , wherein the footing portions each have an upward-facing surface for contacting overlying backfill, each upward-facing surface having area width of at least about between 4 to 14 inches for a diameter of the tank being about between 6 to 8 feet.

4. The anchor of claim 1 , wherein the footing portions each have an upward-facing surface for contacting overlying backfill, each upward-facing surface having area width of at least about between 8 to 20 inches for a diameter of the tank being about 10 feet.

5. The anchor of claim 1 , wherein the footing portions each have an upward-facing surface for contacting overlying backfill, each upward-facing surface having area width of at least about between 10 to 26 inches for a diameter of the tank being about 12 feet.

6. The anchor of claim 1 , wherein the footing portions each have substantially a same length as the spine.

7. The anchor of claim 1 , wherein the footing portions are generally equally sized.

8. The anchor of claim 1 , wherein the reinforcement structure further comprises reinforcing bars.

9. The anchor of claim 8 , wherein the reinforcing bars comprise:

upper reinforcement bars extending within the spine;

lower reinforcement bars extending within the footing below the spine; and

reinforcement connectors each fixed to a corresponding upper reinforcement bar and a corresponding lower reinforcement bar.

10. The anchor of claim 9 , wherein the reinforcing bars further comprise additional bars provide in each of the footing portions.

11. The anchor of claim 8 , wherein the reinforcing bars comprise a first upper reinforcement bar and a second upper reinforcement bar, the first upper reinforcement bar being located such that an end portion of the first upper reinforcement bar overlies the first chamber, and the second upper reinforcement bar being located such that an end portion of the second upper reinforcement bar overlies the second chamber, to provide structural reinforcement in response to upward force exerted on the retention member.

12. The anchor of claim 1 , wherein the retention member is a retention bar.

13. The anchor of claim 12 , wherein the retention bar has a one-piece structure.

14. The anchor of claim 12 , wherein the retention bar is straight.

15. The anchor of claim 12 , wherein the retention bar and the first and second chambers are oriented lengthwise along the base.