N_(10)与P_s相关分析用于中小型浅基工程勘探

Discussion on correlative analysis of N_(10) and P_s used in engineering exploration of medium-sized and small-sized shallow foundations

充分利用轻便动力触探 N1 0 简便、灵活、快速的优点 ,结合静力触探不受贯入深度影响的特点 ,将二者有机结合起来 ,通过大量对比实验建立了二者之间相关关系公式 ;分析了轻便静力触探及轻便动力触探 N1 0 相关性 ,并利用其相关原理来定量解决岩土工程浅基勘察问题。确定了相应的土力学指标 ,为今后缩短勘察周期 ,减少工程设计的盲目性 ,提供了良好的参考依据。

In this paper, a correlative relation of N 10  and P s  is established based on a large amount of contrastive tests between the portable dynamic penetration test and the static penetration test, with the former test having the advantage of being simple,light and fast and the latter test not influenced by the penetration depth.Based on the correlative relation,the corresponding soil mechanical indexes can be determined. The present relation can be used in the geotechnical exploration of shallow foundations, then the exploration cycle can be shortened and the possibility of blindness in the foundation design can be reduced.