Dynamic Compaction for Highway Construction. Volume 1. Design and Construction Guidelines

摘要

Dynamic compaction has been found to produce densification in certain natural and fill deposits to depths varying from 10 to 35 ft below grade and has an application for highway construction. The manual, Volume I, presents the 'state of the art' of dynamic compaction. The information contained herein was assembled from published articles, actual job records, interviews with engineers and specialty contractors engaged with dynamic compaction and data obtained from instrumenting three project sites. Guidelines are presented for determining the suitability of deposits for dynamic compaction, estimating the depth and degree of improvement, planning the spacing between drop points, estimating the required unit applied energy, monitoring the improvement, and predicting offsite ground vibrations. In addition, non-technical aspects of dynamic compaction are discussed, including equipment requirements, typical costs, and methods for negotiating a contract including specification guidelines.