| 路堤荷载下CFG桩复合地基桩土应力比原位测试 |
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| 引用本文： | 张鸿,周院芳,万保安,陈书全,熊茂东.路堤荷载下CFG桩复合地基桩土应力比原位测试[J].公路交通科技,2011,28(9):5-10. |
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| 作者姓名： | 张鸿 周院芳 万保安 陈书全 熊茂东 |
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| 作者单位： | 1. 北京科技大学土木与环境工程学院北京100083;南昌工程学院土木与建筑工程学院,江西南昌330099
2. 江西公路开发总公司,江西南昌,330038 |
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| 基金项目： | 江西省科技支撑计划项目(2010BGB01302); 江西省交通运输厅重点科技项目(2010C00013、2010C00014) |
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| 摘 要： | 通过对德兴至南昌高速公路填土路堤下CFG桩复合地基桩土应力比的现场原位测试试验,对不同桩距的CFG桩复合地基在路堤填筑施工期和载荷试验承栽板下的桩土应力比测试结果进行分析,探讨了桩土应力比随荷栽和时间变化的规律.结果表明:路堤荷载条件下与刚性荷载下桩土应力比的变化规律存在着差异,在路堤施工期测试的桩土应力比较刚性荷载试...
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| 关 键 词： | 道路工程 高速公路 桩土应力比 原位测试 CFG桩复合地基 柔性荷载 |
In-situ Test of Pile-soil Stress Ratio of CFG Pile Composite Foundation under Embankment Load |
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| ZHANG Hong,ZHOU Yuanfang,WAN Bao'an,CHEN Shuquan,XIONG Maodong.In-situ Test of Pile-soil Stress Ratio of CFG Pile Composite Foundation under Embankment Load[J].Journal of Highway and Transportation Research and Development,2011,28(9):5-10. |
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| Authors: | ZHANG Hong ZHOU Yuanfang WAN Bao'an CHEN Shuquan XIONG Maodong |
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| Institution: | ZHANG Hong1,2,ZHOU Yuanfang3,WAN Bao'an3,CHEN Shuquan3,XIONG Maodong3 (1.School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China,2.School of Civil Engineering & Architecture,Nanchang Institute of Technology,Nanchang Jiangxi 330099,3.Jiangxi Highway Development Company,Nanchang Jiangxi 3330038,China) |
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| Abstract: | In-situ tests on pile-soil stress ratio of CFG pile composite foundation under earthfill embankment in Dexing-Nanchang freeway were carried out.The test results of pile-soil stress ratio of CFG pile composite foundation with different pile spacings in embankment filling in construction and in static loading test with rigid board were analyzed.The regularities of pile-soil stress ratio varying with load and time were discussed.The results show that(1) The variation of pile-soil stress ratio under embankment ... |
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| Keywords: | road engineering freeway pile-soil stress ratio in-situ test CFG pile composite foundation flexible load |
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