Shaft construction in the earth and method thereof
AssigneeRic-Man Construction, Inc.
InventorsSteven M. Mancini, Edward A. Mancini
Life of this patent
Estimating the term…
Abstract
A method of constructing a shaft in the earth for use as, for example, a launch shaft or a retrieval shaft, may include several steps. One step includes installing a secant pile wall into the earth. The secant pile wall encloses a portion of the earth. Another step includes excavating the portion of the earth enclosed by the secant pile wall. The excavated portion leaves an interior of the shaft and exposes an inside surface of the secant pile wall. Yet another step includes placing a metal liner within the interior of the shaft. And yet another step includes partially or more filling a space located between the inside surface of the secant pile wall and the metal liner with a grout material.
Claims15
A method of constructing a shaft in the earth, the method comprising:
- installing a secant pile wall into the earth, said secant pile wall enclosing a portion of the earth;
- excavating the portion of the earth enclosed by said secant pile wall, the excavated portion leaving an interior of the shaft and exposing an inside surface of said secant pile wall scarifying at least a section of said inside surface of said secant pile wall to form a plurality of recesses in said inside surface to receive said grout material;
- placing a metal liner within said interior of the shaft;
- at least partially filling a space located between said inside surface of said secant pile wall and said metal liner with a grout material;
- placing a rebar cage adjacent a base of the shaft;
- and
- pouring a concrete material over said rebar cage to immerse a lower end of said metal liner in said concrete material.
A method of constructing a shaft in the earth, the method comprising:
- installing a secant pile wall into the earth, said secant pile wall enclosing a portion of the earth;
- excavating the portion of the earth enclosed by said secant pile wall, the excavated portion leaving an interior of the shaft and exposing an inside surface of said secant pile wall;
- forming at least one first recess in said inside surface of said secant pile wall;
- placing a metal liner within said interior of the shaft, said metal liner having at least one second recess located in its structure;
- and
- at least partially filling a space located between said inside surface of said secant pile wall and said metal liner with a grout material, said grout material filling in said at least one first recess and filling in said at least one second recess, wherein friction generated between said grout material and said at least one first recess and between said grout material and said at least one second recess withstand groundwater uplift forces.
A method of constructing a shaft in the earth, the method comprising:
- excavating a portion of the earth enclosed by a secant pile wall to expose an inside surface of the secant pile wall;
- installing a base plug at a bottom of the shaft, including pouring concrete;
- placing a metal liner radially spaced inside of the inside surface of secant pile wall, such that a bottom end of the metal liner is captured in the base plug;
- and
- at least partially filling a space located between the inside surface of the secant pile wall and the metal liner with a grout material.
Dependencies are inferred from the claim text.