（1 铜陵市建筑工程施工图设计文件审查有限公司， 铜陵 244000； 2 铜陵市建设工程质量监督监测有限公司， 铜陵 244000）

［摘要］由于有关规范对基桩检测的规定不完全相同，容易造成混乱。对《建筑地基基础设计规范》（GB 50007—2011）、《建筑桩基技术规范》（JGJ 94—2008）、《建筑基桩检测技术规范》（JGJ 106—2014）中有关基桩检测规定进行比较，对高、低应变检测方法及其适用情况进行分析，对桩承载力计算方法进行归纳，对静载试验加载量及桩身纵筋配筋问题进行探讨。得出如下主要结论：建筑桩基设计等级为甲、乙级的基桩应进行试桩，丙级的基桩一般可不试桩；高应变法检测基桩承载力和低应变法检测基桩完整性有一定的局限性和适用范围；钻芯法钻取的混凝土芯样试件抗压强度一般低于混凝土的强度等级；基桩承载力静载试验检测的最大加载量在不同情况下取值不同；需考虑负摩阻力的基桩承载力静载试验检测的最大加载量应考虑中性点以上部分桩侧摩阻力的不利影响。

［关键词］基桩检测； 低应变法； 高应变法； 静载试验

中图分类号：TU473文献标识码：A文章编号：1002-848X(2020)07-0118-12

Discussion on foundation pile test method and loading quantity in static load test

LI Guosheng1，2

(1 Tongling Construction Engineering Drawing Design Ｒeview Co., Ltd.， Tongling 244000， China;2 Tongling Construction Engineering Quality Supervision and Monitoring Co.， Ltd.， Tongling 244000， China)

Abstract:It is easy to cause confusion because the regulations on the test of foundation piles in relevant codes are not all the same. The foundation pile test regulations in Specification for design of building foundation (GB 50007—2011), Code for building pile foundation technology (JGJ 94—2008) and Technical specification for construction foundation pile test (JGJ 106—2014) were compared. The high and low strain test method and the corresponding suitable conditions were analyzed, and the pile bearing capacity calculation method were summarized, and the loading of static load test and the problem of longitudinal reinforcement of pile were discussed. The main conclusions are as follows: test piles should be tested for grade A and grade B foundation piles and test piles are generally not needed for grade C foundation piles; it has certain limitations and applicable scope for using high strain method for testing bearing capacity of piles and low strain method to test integrity of piles; the compressive strength of concrete core specimens drilled by the core drilling method is generally lower than the strength level of the concrete; the maximum load of the static load test of the foundation pile is different in different cases; the maximum load of the static load test of the bearing capacity of the foundation pile that needs to consider the negative friction resistance should consider the adverse effect of the lateral friction resistance of the pile above the neutral point.

Keywords:foundation pile test; low strain method; high strain method; static load test

作者简介：李国胜，学士，高级工程师，一级注册结构工程师，Email：693950802@qq.com。