Precast concrete screw cylinder system and method for soil stabilization and erosion control

An earth stabilization system for stabilizing a soil mass comprising:

• a) a plurality of hollow jars positioned within a soil mass to be stabilized, each said jar having a weight, a wall with a wall top and a wall bottom, and a bore extending from the wall bottom to the wall top, the wall formed from a material that can be poured and that hardens when set;
• b) the wall of each said jar having a wall thickness and a reinforcing material within the wall;
• c) a base cutter portion formed as part of the wall bottom of each said jar;
• d) a turning tool;
• e) each wall top having a coupler enabling attachment of each said jar to a turning tool, the turning tool operable to rotate each said jar;
• f) wherein the turning tool enables rotation of each said jar and the base cutter portion;
• g) wherein the weight of each said jar at least in part enables each said jar to cut through the soil mass, and wherein displaced soil can move through the bore in the wall while each said jar is being rotated into the soil mass in the direction of the wall bottom to the wall top;
• and
• h) wherein the base cutter portion of at least one jar of the plurality of hollow jars is made from a same material as the wall of the at least one jar, and wherein the same material is reinforced concrete.

An earth stabilization system for stabilizing a soil mass comprising:

• a) a plurality of hollow jars positioned within a soil mass to be stabilized, each said jar having a weight, a wall with a wall top and a wall bottom, and a bore extending from the wall bottom to the wall top, the wall formed from a material that can be poured and that hardens when set;
• b) the wall of each said jar having a wall thickness and a reinforcing material within the wall;
• c) a base cutter portion formed as part of the wall bottom of each said jar;
• d) a turning tool;
• e) each wall top having a coupler enabling attachment of each said jar to a turning tool, the turning tool operable to rotate each said jar;
• f) wherein the turning tool enables rotation of each said jar and the base cutter portion;
• g) wherein the weight of each said jar at least in part enables each said jar to cut through the soil mass, and wherein displaced soil can move through the bore in the wall while each said jar is being rotated into the soil mass in the direction of the wall bottom to the wall top;
• and
• h) wherein the wall thickness of each of the plurality of hollow jars is between 3 and 14 inches.