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Ground Improvement Techniques for Liquefaction Remediation Near Existing Lifelines.


pdf icon Ground Improvement Techniques for Liquefaction Remediation Near Existing Lifelines. (4787 K)
Andrus, R. D.; Chung, R. M.

NISTIR 5714; 87 p. October 1995.

Available from:

National Technical Information Service
Order number: PB96-128111

Keywords:

lifelines; building technology; compaction grouting; cost estimate; drain pile; earthquakes; ground improvement; jet grouting; liquefaction remediation; permanent ground deformation; permeation grouting; soil liquefaction; soil mixing

Abstract:

This report reviews five low vibration ground improvement techniques suitable for remedial work near existing structures. The five techniques are: compaction grouting, permeation grouting, jet grouting, in situ soil mixing, and drain pile. The factors which can influence the effectiveness of each technique are identified. Cost estimates are given for each technique, except the drain pile technique which is not yet available in the United States. Nineteen case studies of liquefaction remediation and remedial work near existing lifelines are reviewed. Advantages and constraints of the five techniques are compared. A combination of techniques may provide the most cost-effective ground improvement solution for preventing damage to existing lifelines resulting from liquefaction-induced horizontal ground displacement, subsidence, and uplift.