浅析钻芯法评定基桩的成桩质量
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摘要
通过对桩身混凝土设计强度等级、混凝土配制强度、桩身混凝土实体强度、桩身芯样试件抗压强度的简要介绍,对钻芯法芯样试件抗压强度需要考虑的实体强度与标准试件强度的差异、基桩的成桩工艺系数、芯样试件的机械扰动、尺寸效应等因素进行了阐述,分析了JGJ 106-2014《建筑桩基检测技术规范》利用芯样试件抗压强度评价基桩成桩质量的方法,提出一种合理评价基桩成桩质量的方法,为芯样试件抗压强度评价基桩成桩质量提供一种参考。
According to the brief introduction to design strength grade of pile shaft concrete,concrete preparation strength,pile body concrete physical strength and compressive strength of core samples of pile body,this paper elaborated factors needed to be considered about the core method of core sample specimen compressive strength,that were the difference between physical strength and the strength of standard test pieces,process coefficient of the pile,specimens for core samples of mechanical disturbance and size effect;analyzed to use the core sample specimen compressive strength to evaluate the quality of the pile method by JGJ 106-2014"Technical code for testing of building foundation piles",then proposed a reasonable method to evaluate the quality of the pile foundation piles,which could provide a reference for evaluating the pile quality.
According to the brief introduction to design strength grade of pile shaft concrete,concrete preparation strength,pile body concrete physical strength and compressive strength of core samples of pile body,this paper elaborated factors needed to be considered about the core method of core sample specimen compressive strength,that were the difference between physical strength and the strength of standard test pieces,process coefficient of the pile,specimens for core samples of mechanical disturbance and size effect;analyzed to use the core sample specimen compressive strength to evaluate the quality of the pile method by JGJ 106-2014"Technical code for testing of building foundation piles",then proposed a reasonable method to evaluate the quality of the pile foundation piles,which could provide a reference for evaluating the pile quality.
引文
[1]中国建筑科学研究院.CECS 03:88钻芯法检测混凝土强度技术规程[S].北京:中国建筑工业出版社,1988.
[2]中国建筑科学研究院.JGJ 106-2003建筑基桩检测技术规范[S].北京:中国建筑工业出版社,2003.
[3]中国建筑科学研究院.JGJ 106-2014建筑基桩检测技术规范[S].北京:中国建筑工业出版社,2014.
[4]中国建筑科学研究院.GB/T 50107-2010混凝土强度检验评定标准[S].北京:中国建筑工业出版社,2010.
[5]中国建筑科学研究院.GB/T 50081-2002普通混凝土力学性能试验方法标准[S].北京:中国建筑工业出版社,2003.
[6]中国建筑科学研究院.JGJ 55-2011普通混凝土配合比设计规程[S].北京:中国建筑工业出版社,2011.
[7]中国建筑科学研究院.GB 50010-2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2011.
[8]中国建筑科学研究院.JGJ 94-2008建筑桩基技术规范[S].北京:中国建筑工业出版社,2008.
[2]中国建筑科学研究院.JGJ 106-2003建筑基桩检测技术规范[S].北京:中国建筑工业出版社,2003.
[3]中国建筑科学研究院.JGJ 106-2014建筑基桩检测技术规范[S].北京:中国建筑工业出版社,2014.
[4]中国建筑科学研究院.GB/T 50107-2010混凝土强度检验评定标准[S].北京:中国建筑工业出版社,2010.
[5]中国建筑科学研究院.GB/T 50081-2002普通混凝土力学性能试验方法标准[S].北京:中国建筑工业出版社,2003.
[6]中国建筑科学研究院.JGJ 55-2011普通混凝土配合比设计规程[S].北京:中国建筑工业出版社,2011.
[7]中国建筑科学研究院.GB 50010-2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2011.
[8]中国建筑科学研究院.JGJ 94-2008建筑桩基技术规范[S].北京:中国建筑工业出版社,2008.