提高基桩钻芯法检测中持力层岩芯采取率方法探讨

Discussion on improving the rate of core recovery in pile core detection

判定或鉴别持力层岩土性状是基桩钻芯法检测的主要目的之一,而足够的岩芯采取率是正确判定持力层岩性的前提。本文分析了检测实践中持力层岩芯采取率低的原因,并结合实际给出了提高岩石采取率的建议,取得了良好的效果。

Determination or identification of bearing layer of rock and soil character is one of the main purposes of foundation pile drilling core test, and enough core rate is the premise to correctly determine the lithology of the bearing stratum. In this paper, reasons of low core recovery are discussed, suggestions to improve the core recovery rate are given. The suggestions have obtained a good economic effect.