Correlation Between Pressuremeter Test and Standard Penetration Test on Sand Deformation Modulus

To determine the deformation modulus of sand conveniently and accurately, based on the special geological survey of DN2200 Water Pipeline Reinforcement in Shuiyuanjiuchang, the blow count of standard penetration test and deformation modulus of pressuremeter test were statistically compared and analyzed, and the function relation between standard penetration blow count and deformation modulus was established. Considering the influence of different particle sizes of sand, fine sand and medium coarse sand were statistically analyzed respectively, and the function relationships were established. The results show that there is a high positive correlation between the blow count and deformation modulus of fine sand. Through the relationship, the deformation modulus index parameters of sandy soil can be conveniently calculated by using the standard penetration test, so as to meet the practical needs of engineering.