黏性土地区高速铁路桥梁桩基础沉降计算方法研究
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摘要
为了解决黏性土地区高速铁路桥梁桩基础沉降计算中工后沉降占总沉降的比重、基础压缩层厚度的确定、沉降随时间和荷载的变化曲线等问题,针对已通车客运专线的大量测量和试验数据,采用数理统计并结合现场试验的方法,对高速铁路黏性土地区桥梁基础沉降计算方法进行深入的研究,得出工后沉降占总沉降比重不超过55%、沉降随时间和荷载的变化采用变形过程指数法进行计算等十分重要的结论。
The purpose of this research is to solve the problems in the settlement calculation of bridge pile foundation of high-speed railway in cohesive soil area,such as the proportion of the post-construction settlement in the total settlement,the compressive layer thickness,the settlement variation with the load and time variation and so on.Base on lots of experimental data and measurement data from the passenger dedicated line in operation,and using mathematical statistics and test in-situ method,a further research on the bridge pile foundation settlement of high-speed railway in cohesive soil area was carried out by the authors.The important conclusions from this research are as follows: the proportion of the post-construction settlement in the total settlement should not be larger than 55%;and the calculation of the settlement variation with the load and time variation may adopt the deformation process index method.
The purpose of this research is to solve the problems in the settlement calculation of bridge pile foundation of high-speed railway in cohesive soil area,such as the proportion of the post-construction settlement in the total settlement,the compressive layer thickness,the settlement variation with the load and time variation and so on.Base on lots of experimental data and measurement data from the passenger dedicated line in operation,and using mathematical statistics and test in-situ method,a further research on the bridge pile foundation settlement of high-speed railway in cohesive soil area was carried out by the authors.The important conclusions from this research are as follows: the proportion of the post-construction settlement in the total settlement should not be larger than 55%;and the calculation of the settlement variation with the load and time variation may adopt the deformation process index method.
引文
[1]中华人民共和国铁道部.TB10002.5—2005铁路桥涵地基和基础设计规范[S].北京:中国铁道出版社,2007.
[2]李聪林.时速200km铁路桥梁桩基在高烈度地震软土地区设计及沉降控制的基本特点[J].铁道标准设计,2010(4):19-23.
[3]张智新.津滨轻轨地基沉降控制研究[J].铁道标准设计,2003(8):9-11.
[4]杨嵘昌,宰金珉.广义剪切位移法分析桩-土-承台非线性共同作用原理[J].岩土工程学报,1994,16(6):103-116.
[5]郗宏庆.桥梁群桩基础沉降性状分析[J].中国水运,2008,8(5):172-173.
[6]中华人民共和国交通部.JTG D63—2007公路桥涵地基与基础设计规范[S].北京:人民交通出版社,2007.
[7]中华人民共和国建设部.GB50007—2002建筑地基基础设计规范[S].北京:中国建筑工业出版社,2002.
[8]中华人民共和国住房和城乡建设部.JGJ94—2008建筑桩基技术规范[S].北京:中国建筑工业出版社,2008.
[9]张忠苗.桩基工程[M].北京:中国建筑工业出版社,2007.
[10]刘利民,舒翔,熊巨华.桩基工程的理论进展与工程实践[M].北京:中国建材工业出版社,2002.
[2]李聪林.时速200km铁路桥梁桩基在高烈度地震软土地区设计及沉降控制的基本特点[J].铁道标准设计,2010(4):19-23.
[3]张智新.津滨轻轨地基沉降控制研究[J].铁道标准设计,2003(8):9-11.
[4]杨嵘昌,宰金珉.广义剪切位移法分析桩-土-承台非线性共同作用原理[J].岩土工程学报,1994,16(6):103-116.
[5]郗宏庆.桥梁群桩基础沉降性状分析[J].中国水运,2008,8(5):172-173.
[6]中华人民共和国交通部.JTG D63—2007公路桥涵地基与基础设计规范[S].北京:人民交通出版社,2007.
[7]中华人民共和国建设部.GB50007—2002建筑地基基础设计规范[S].北京:中国建筑工业出版社,2002.
[8]中华人民共和国住房和城乡建设部.JGJ94—2008建筑桩基技术规范[S].北京:中国建筑工业出版社,2008.
[9]张忠苗.桩基工程[M].北京:中国建筑工业出版社,2007.
[10]刘利民,舒翔,熊巨华.桩基工程的理论进展与工程实践[M].北京:中国建材工业出版社,2002.
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