Title:
SHORT AGGREGATE PIER TECHNIQUES
Document Type and Number:
WIPO Patent Application WO2000047826
Kind Code:
B1
Abstract:
Methods for augmenting the load bearing characteristics, expanding the feasibility and augmenting the construction of short aggregate piers include, preloading (100), adding chemical additives and using mesh reinforcement (802, 805) to the matrix soils; use of gradations of aggregates (502, 504, 506, 508, 510, 512), use of liners (610), use of aggregate drains (714), use of non-impact forces and use of indigenous materials in the pier construction; use of variable dimensioned lifts, use of interlocking recycled materials, use of temporary casings (930) and the use of load sensors (999) within the pier construction. The short aggregate pier construction techniques are used for lateral load stabilization and uplift anchoring. An apparatus comprising a pair of half shells (102A, 102B) wherein the shells are forced outward to apply preload forces to the pier cavity walls (101).
Inventors:
FOX NATHANIEL S
Application Number:
PCT/US2000/001794
Publication Date:
October 05, 2000
Filing Date:
January 25, 2000
Export Citation:
Assignee:
GEOPIER FOUND CO INC (US)
International Classes:
E02D3/08; E02D5/34; E02D5/46; E21B7/00; (IPC1-7): E02D3/08; E02D5/34; E21B7/20
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