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Guide to Remedial Measures for
Liquefaction Mitigation at Existing
Highway Bridge Sites
| 题名： | Guide to Remedial Measures for Liquefaction Mitigation at Existing Highway Bridge Sites |
| 作者： | Harry G. Cooke and James K. Mitchell |
| 关键词： | Earthquake engineering. Highway bridges. Liquefaction risk. Excessive deformations. Liquefaction induced damage. Remediation methods. Performance evaluation. Liquefaction induced failure mechanisms. Improvement methods. Grouting. Compaction grouting. Part |
| 摘要： | The overall objective of me task reported was to develop methodologies to assess liquefaction risk at existing highway bridges, select appropriate ground and/or foundation improvements methods to reduce the risk of damage, design the improvements, and verify that these improvements had been achieved in the field. The report describes the methodologies developed, which focus on asses^ liquefaction risk at existing bridges. Procedures to assess liquefaction are present in flowchart form, progressing from simple to more complex methods. A number of remediation methods are considered, including grouting compaction, vibro systems, surcharge and buttress fills, reinforcement and containment, vertical drains and underpinning. Field testing of these mitigation measures was performed and the results are presented. |
| 报告类型： | 科技报告 |
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