US 7,722,293 B2 · Methods for constructing underground structures

Abstract

Described herein are apparatus, systems and methods useful in forming underground vertical structures. Methods are described for constructing an underground vertical structure, comprising the steps of excavating soil to a sufficient depth to create a circular void to accommodate a plurality of segments; assembling a ring shaped structure comprising the plurality of segments; connecting the outside surface of the ring shaped structure with the soil in said circular void, thereby securing the ring shaped structure to the soil; excavating earth beneath the ring shaped structure to accommodate a second ring shaped structure; and repeating steps b-d thereby forming one or more additional ring shaped structures downward into the earth below already formed ring shaped structures until a predetermined depth is reached; thereby forming the underground vertical structure. Systems to perform the above methods are also disclosed.

Claims14

Dependent claims

A method of constructing an underground vertical structure, comprising the steps of:

a) excavating soil to a sufficient depth to create a circular void to accommodate a plurality of segments;
b) assembling a ring shaped structure comprising said plurality of segments;
c) connecting the outside surface of said ring shaped structure with said soil in said circular void, thereby securing said ring shaped structure to said soil;
d) excavating earth beneath said ring shaped structure to accommodate a second ring shaped structure;
e) repeating steps b-d thereby forming one or more additional ring shaped structures downward into the earth below already formed ring shaped structures until a predetermined depth is reached;
and
f) forming said underground vertical structure.

4 more elements

Dependencies are inferred from the claim text.

Methods for constructing underground structures

Life of this patent

Methods for constructing underground structures

Life of this patent

Abstract

Claims14