岩土工程学报2017，Vol.39Issue(4)：645-651,7.DOI:10.11779/CJGE201704008
抗液化排水刚性桩沉桩过程中的孔压响应
Field tests on response of excess pore water pressures of liquefaction resistant rigid-drainage pile
摘要
Abstract
The liquefaction resistant rigid-drainage pile is a new type of pile which can be used in geotechnical earthquake engineering. The pile combines the bearing capacity of rigid pile and the drain-ability of gravel pile. Based on the pile foundation engineering of Jiangyin No.1 High School's new campus, the pile-driving field tests on liquefaction resistant rigid-drainage pile are carried out for the first time. The excess pore water pressures around drainage piles and ordinary piles are recorded during field tests, depending on various data from different locations in depths and displacements. According to these test results, the maximum excess pore water pressure around the ordinary piles is larger than that around the drainage piles during the pile driving. When the pile driving is finished, the excess pore water pressures around the drainage piles dissipate faster than those around the ordinary piles. In the influence area, the excess pore water pressure dissipation of drainage piles at deep depths where a liquefiable soil layer is located is more obviously than that at shallow depths. The data of piles tests may provide other engineers with reliable evidences.关键词
抗液化/排水刚性桩/超孔压/现场试验Key words
liquefactionresistance/rigid-drainage pile/excess pore water pressure/field test分类
建筑与水利引用本文复制引用
王翔鹰,刘汉龙,江强,陈育民..抗液化排水刚性桩沉桩过程中的孔压响应[J].岩土工程学报,2017,39(4):645-651,7.基金项目
国家自然科学基金面上项目(51379067) （51379067）
重点国际合作研究项目(51420105013) （51420105013）
中央高校基本科研业务费项目(2015B17314) （2015B17314）
