详情

Stabilization of Peat Deposits for Roadway Construction and Remediation

项目名称：	Stabilization of Peat Deposits for Roadway Construction and Remediation
摘要：	Peat, a soil with very high organic content, is often encountered in roadway construction in Ohio, especially in Ohio Department of Transportation (ODOT) Districts 1, 2, 4, 6 and 12. In contrast to other problematic soils such as soft clays, the majority of deformation in peat is caused by secondary compression (volume changes by soil particle rearrangement), instead of primary compression (pore water dissipation). Therefore, the deformation of roadways on peat is a long-term phenomenon, and it evolves with time. Roadways constructed on peat often experience premature distress in the form of rutting, cracking and differential settlement. The goal of this study is to identify potential remediation strategies for settlement control of pavements on Ohio peats and to evaluate the performance of the most promising and cost effective strategy with field experiments. The outcome of this research is expected to provide an alternative option in ODOT's toolbox for peat treatment in roadway construction and maintenance. Engineers from the ODOT Central Office or district offices can also refer to the guidelines and recommendations developed in this research in the design and implementation of the polymer injection method, which has the potential to greatly reduce ODOT's pavement maintenance costs in terms of material, labor, and time in areas where peat deposits are encountered. The project has been divided into two phases. Phase I of the project aims to identify the potential ground improvement technologies which are applicable to roadways on peat deposits, to assess the cost-benefit of each technology and to rate each technology considering the various selection factors. ODOT will review the cost benefit analysis and decide whether it will beneficial to move forward to Phase II. Phase II will evaluate the effectiveness of the selected technologies with a comprehensive field test plan and provide recommendations to ODOT on the future implementation of the technology.
状态：	Completed
资金：	41413.00
资助组织：	Federal Highway Administration, Ohio Division
项目负责人：	Noble, Jack
执行机构：	University of Akron
开始时间：	20141101
实际结束时间：	20150901
主题领域：	Construction；Geotechnology；Highways；Pavements