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 pil...

Energy piles are a relatively new technology that have dual function as heat transferring and load bearing. Due to the influence of temperature cycles, additional thermal stress relative displacement pile will be generated; this is different from mechanism conventional pile. In order study thermodynamic characteristics energy pipe under working conditions field tests were carried out on PHC (pr...