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Edition:Final; Aug. 1980-Aug. 1982.
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NTL Classification:NTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and Structures
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Abstract:k Abstract tone columns have been used since the 1950’s as a technique for
improving both cohesive soils and silty sands. Potential applicationsj
include (1) stabilizing foundation soils to support embankments and
approach fills, 12) ,supporting retaining structures (including
Reinforced Earth), bridge bent and abutment structures on slightly
marginal soft to stiff clays and loose silty sands, (3) landslide
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stabilization and (4) reducing liquefaction potential of clean sands. !
Also, stone columns under proper conditions can greatly decrease
the time required for primary consolidation.
The report describes construction, field inspection, and design
aspects of stone columns. Also,
Bearing capacity,
several case histories are described. 1
settlement and stability design examples are given
in the appendixes contained in Volume II,
Appendix A -(FHWA/RD-83/027) as follows:
Selected Contacts for Stone Columns I
Appendix B - Local Bearing Failure of an Isolated Stone Column
Appendix C - Example Bearing Capacity Problems
Appendix D - Example Settlement Problems I
Appendix E - Example Stability Problem
Appendix F - Rammed Franki Stone and Sand Columns
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