Abstract A pile and method of sinking piling into clay, sand or other material (which may be underwater) is disclosed employing a downward pointing hollow plastic nose cone base which is filled with concrete and through which water is jetted to erode away the earth. The exterior of the cone is broken by threads formed thereon to allow the pile to be advanced through strata of harder material such as shell layers. The upper surface of the nose cone includes a series of stair-stepped cylindrical flanges to receive different diameter plastic pipe. The piling may be formed of any height desired by adding additional pipe sections to the top of the initial pipe sections. The pipe sections are also preferably filled with concrete which may be reinforced by a spiral steel reinforcement rod. In assembling, the lightweight plastic members are solvent welded together at the site, concrete is poured into the nose cone about a central jetting pipe and the unit lowered to the earth. Then by either jet action or screw action or both, the piling is advanced into the earth to the desired depth. Additional pipe segments are added as needed as the piling drops further into the ground. Steel reinforcing rods and concrete are then added if desired.
A base member for use in a piling structure comprising: a generally conical-shaped member having an opening for receiving a water jetting pipe and a longitudinally interrupted conical outer surface so as to better be able to break through and break up soil obstructions during driving, wherein said base member conical outer surface is interrupted by substantially upward facing surface segments so as to present a barbedlike longitudinal cross section to the base member.
Claim 2
Dependent Claim
74 words
A base member for use in a piling structure comprising: a generally conical-shaped member having an opening for receiving a water jetting pipe and a longitudinally interrupted conical outer surface so as to better be able to break through and break up soil obstructions during driving, wherein said base member conical outer surface is interrupted by substantially upward facing surface segments so as to present a barbedlike longitudinal cross section to the base member.
Claim 3
Dependent Claim
54 words
A base member for use in a piling structure comprising: a generally conical-shaped member having an opening for receiving a water jetting pipe and a longitudinally interrupted conical outer surface so as to better be able to break through and break up soil obstructions during driving, wherein said interrupted surface is formed into threading.
Claim 4
Dependent Claim
54 words
A base member for use in a piling structure comprising: a generally conical-shaped member having an opening for receiving a water jetting pipe and a longitudinally interrupted conical outer surface so as to better be able to break through and break up soil obstructions during driving, wherein said interrupted surface is formed into threading.
Claim 5
Dependent Claim
31 words
The base member for use in a piling structure, as defined in claim 2, wherein: said threading is of the buttress type with upward facing surfaces between the crests and roots.
Claim 6
Dependent Claim
39 words
The base member for use in a piling structure, as defined in claim 1 wherein: said top of said base member has a plurality of concentric cylindrical segments formed thereon to receive a plurality of different diameter pipe sections.