Terrapin system

A method for compacting soil in a hole comprising:

• providing a terrapin configured for being removably inserted into the soil, said terrapin comprising a swing system and a compaction bar, the swing system being comprised of a base plate connected to a plurality of swinging members such that the swing members reversibly expand between a desired extension angle and a resting position while installed in the soil, said base plate having a centralized hole that accommodates the compaction bar allowing the compaction bar to move freely through, the compaction bar being comprised of a bar that is comprised of a top end and a bottom end, the bottom end being connected to a cone and a driving pin such that the cone sits above the driving pin and such that cone is in contact with the plurality of swinging members in their resting position;
• placing a casing in the hole, inserting the terrapin by pushing the compaction bar through the casing such that the base plate, the plurality of swinging members, the cone and the driving pin are under the casing and the driving pin is contacting a bottom of the hole while a length of the bar to the top end remains above the casing, the casing and the compaction bar being configured to cooperate with an extension member;
• placing the extension member in a closed configuration until on the topside of the casing;
• activating the extension member causing the compaction bar to be pulled via the length of the bar in an upward direction freely through the centralized hole, while simultaneously pulling up the cone and driving pin thereby causing the swinging members to expand from their resting position to a desired angle, thereby compacting the soil in the hole causing the casing to be securely installed in the hole.