高应变法在判定大直径灌注桩缺陷中的应用

测试数据准确可靠的高应变法检测,能够定量分析基桩缺陷,准确判定缺陷位置。通过工程桩的低应变法和高应变法对桩身完整性判定分析的工程实例,结合钻芯法验证,总结高应变法在不同情况下对桩身完整性的评定。

Application of the High Strain Method on the Deficiency Discrimination of Major Diameter Grout Piles

The high strain method, which is characterized by veracious and credible test data, can be used to do a quantitative analysis of deficiency for foundation piles and to find exactly out the location of its deficiency. Based on the engineering examples of the pile integrity decision analysis by the low strain and high strain methods and the proven results of the drilling method, the paper presents the distinguished criterion of the pile integrity by the high strain method under different conditions.