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Cost-Effective Ground Improvement for Liquefaction Remediation Near Existing Lifelines.


pdf icon Cost-Effective Ground Improvement for Liquefaction Remediation Near Existing Lifelines. (665 K)
Andrus, R. D.; Chung, R. M.

U.S./Japan Cooperative Program in Natural Resources. Panel on Wind and Seismic Effects. Joint Meeting, 27th. Proceedings. May 16-19, 1995, Tsukuma, Japan, 115-123 pp, 1995.

Keywords:

lifelines; building technology; earthquakes; ground improvement; permanent ground deformation; soil liquefaction

Abstract:

Little information has been gathered on ground improvement near existing lifelines. Five low vibration ground improvement techniques suitable for remedial work near existing structures are discussed. The five techniques are: compaction grouting, permeation grouting, jet grouting, in situ soil mixing, and drain pile. Cost estimates are given for each technique, except the drain pile technique which is not yet available in the United States. Two reported case histories of ground improvement near buried pipes and conduits are reviewed. A combination of techniques may provide a cost-effective solution for preventing damage to existing lifelines resulting from liquefaction-induced horizontal ground displacement, subsidence, and uplift.