Evaluating effectiveness of liquefaction remediation measures for bridges

ABSTRACT

To effectively retrofit a bridge foundation sited on liquefiable soil deposits, it is necessary to determine the location and lateral extent of the soil block which should be treated by ground improcement techniques. Adequacy of a given treatment plan depends on limiting deformations to some tolerable level. Because the stability and deformation issues involved in such cases can be complex, the most sophisticated analysis methods may lie beyond the engineering budget and expertise available for smaller jobs. The current study focuses on developing simplified guidelines complexity for a typical liquefiable site. By examining the results of these analyses, preliminary conclusions have been reached regarding suitable methods of analysis, and the optimal location for ground treatment in similar cases.(AU)