Systems and methods to reinforce excavation walls
AssigneePost Tensioning Solutions LLC
InventorsJoseph Marino Lucia, Rick Allen Thompson
Life of this patent
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Abstract
A soldier pile wall for shoring an excavation site includes a plurality of drilled shafts drilled along an edge of the excavation site, a plurality of soldier piles, each of the plurality of soldier piles being positioned within a respective drilled shaft, and a pre-stressing system coupled to at least some of the plurality of soldier piles. The pre-stressing system is configured to induce stresses to counteract working stresses of the soldier pile wall. Related methods are also provided.
Claims14
A soldier pile wall for shoring an excavation site, the soldier pile wall comprising:
- a plurality of drilled shafts drilled along an edge of the excavation site;
- a plurality of soldier piles, each of the plurality of soldier piles being positioned within a respective drilled shaft;
- and
- a pre-stressing system coupled to at least some of the plurality of soldier piles, the pre-stressing system configured to induce stresses to counteract working stresses of the soldier pile wall.
The soldier pile wall of claim 3 wherein the pre-stressing system further comprises:
- a protective cover having grout therein, the grout surrounding the post-tensioning strand.
A system for shoring an excavation site having a plurality of adjacent holes drilled along an edge of the excavation site where a soldier pile wall is to be erected, the system comprising:
- a plurality of modular soldier piles, each of the plurality of modular soldier piles to be positioned within a respective hole and including a pre-stressing system coupled thereto, the pre-stressing system having:
- a post-tensioning strand enclosed in a protective cover, the protective cover having grout therein to surround and enclose the post-tensioning strand;
- an anchorage system positioned at each end of the post-tensioning strand and coupled to a respective end of the post-tensioning strand;
- and
- a compressive flange brace having an aperture to allow the post-tensioning strand to pass therethrough, the compressive flange brace preventing bending of the modular soldier pile during a pre-stressing operation.
A method to make a soldier pile wall for an excavation site, the method comprising:
- drilling a row of holes along an edge of the excavation site to form a corresponding drilled shaft;
- coupling a pre-stressing system to at least some of a plurality of soldier piles;
- placing each of the plurality of soldier piles within a respective drilled shaft;
- pouring cementitious material to fill the drilled shaft;
- excavating the excavation site;
- and
- inserting lagging laterally and between adjacent soldier piles.
Dependencies are inferred from the claim text.