巴基斯坦冲积平原区PKM高速公路桥梁桩基承载力的计算分析
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摘要
在建的巴基斯坦PKM高速公路项目,根据业主要求需采用美国标准。为满足合同要求,对基于美国桥梁设计规范的桩基承载力计算从设计方法、参数指标选取、地下水位、群桩效应等多方面进行了分析。采用美国规范ASTM D1143-07进行桩基竖向抗压静载试验,结果表明,桩基承载力、沉降值均满足规范要求。
PKM motorway project is now under construction in Pakistan. According to employer ' s requirements,the American specifications shall be adopted. To meet the contract,the calculation of pile foundation bearing capacity based on the AASHTO LRFD bridge design specifications is studied from design method,parameter index selection,underground water level and group pile effect etc.. American standard ASTM D1143-07 was adopted for test method for deep foundations under static axial compressive load in this project as per the client' s requirement and test results show that the bearing capacity and settlement value of pile foundation meet the standard requirements.
PKM motorway project is now under construction in Pakistan. According to employer ' s requirements,the American specifications shall be adopted. To meet the contract,the calculation of pile foundation bearing capacity based on the AASHTO LRFD bridge design specifications is studied from design method,parameter index selection,underground water level and group pile effect etc.. American standard ASTM D1143-07 was adopted for test method for deep foundations under static axial compressive load in this project as per the client' s requirement and test results show that the bearing capacity and settlement value of pile foundation meet the standard requirements.
引文
[1] The AASHTO LRFD Bridge Design Specifications[S]. 6th ed. United States:American Association of State Highway and Transportation Officials,2012.
[2]陈凡,徐天平,陈久照,等.基桩质量检测技术[M].北京:中国建筑工业出版社,2003.
[3] ASTM D1143/D1143M—2007 Standard Test Methods for Deep Foundations under Static Axial Compressive Load[S]. United States:American Society for Testing and Materials,2007.
[4]王金海,王文辉.中美印单桩竖向抗压静载试验方法对比[C]∥山东电机工程学会2012年度学术年会论文集.济南:山东电机工程学会,2012.
[5]张天宝,周良慧.超长钻孔灌注桩竖向承载特征试验研究[J].路基工程,2016(3):113-117.ZHANG T B, ZHOU L H. Experimental Research on Vertical Bearing Characteristics of Super Long Bored Pile[J]. Subgrade Engineering,2016(3):113-117.
[2]陈凡,徐天平,陈久照,等.基桩质量检测技术[M].北京:中国建筑工业出版社,2003.
[3] ASTM D1143/D1143M—2007 Standard Test Methods for Deep Foundations under Static Axial Compressive Load[S]. United States:American Society for Testing and Materials,2007.
[4]王金海,王文辉.中美印单桩竖向抗压静载试验方法对比[C]∥山东电机工程学会2012年度学术年会论文集.济南:山东电机工程学会,2012.
[5]张天宝,周良慧.超长钻孔灌注桩竖向承载特征试验研究[J].路基工程,2016(3):113-117.ZHANG T B, ZHOU L H. Experimental Research on Vertical Bearing Characteristics of Super Long Bored Pile[J]. Subgrade Engineering,2016(3):113-117.