Bearing capacity of driven pile and determination of inhomogeneous mudstone around the pile

Whether the inhomogeneity of mudstone foundation leads to abnormal bearing capacity driven pile remains controversial. This study introduces standard penetration test hammering number and needle strength for quantitative analysis by macroscopic observation engineering field on stratum self-structure microscopic simple feasible electronic magnification. The typical examples demonstrated that piles in was related inhomogeneity. also proposes a method evaluating uniformity using heterogeneous index η , which > 2 suggests need measures. These findings assist determining reasonable solution problem at foundations.