详情

Development of LRFD Recommendations of Driven Piles on Intermediate Geomaterials

项目名称：	Development of LRFD Recommendations of Driven Piles on Intermediate Geomaterials
摘要：	Many piles in the Rock Mountain region are driven on Intermediate Geomaterials (IGM). IGM is a transitional geomaterial between soil and hard rock, which is not well defined for the design and construction of driven piles. Reliable static analysis methods have not been developed to estimate the pile resistance on IGM. The resistances of piles driven on IGMs are currently determined using dynamic analysis or static load test methods during construction. These limitations reduce the accuracy of pile resistance estimation, result in lower load and resistance factor design (LRFD) resistance factors, and eventually increase the construction cost. The proposed research is to develop the LRFD recommendations of driven piles on IGMs. The research objectives are to (1) develop advanced static analysis methods for pile resistance estimation on IGM, (2) validate and improve the accuracy of dynamic analysis methods, (3) develop LRFD resistance factors for piles on IGM, and (4) recommend changes and improvements to current pile design and construction practices. The research objectives will be accomplished from seven tasks: data collection, electronic database development, data assessment, pile resistance estimation, LRFD resistance factor calibrations, LRFD recommendations and reporting.
状态：	Active
资金：	159045
资助组织：	Office of the Assistant Secretary for Research and Technology
项目负责人：	Tolliver, Denver
执行机构：	Dept. of Civil and Architectural Engineering
开始时间：	20210507
预计完成日期：	20220731
主题领域：	Bridges and other structures；Design；Geotechnology；Highways