Measured Lateral Response of Mass on Single Pile in Clay

摘要: The results of dynamic lateral load tests on a cantilevered mass supported by single 10.75-in. (273-mm) diameter steel pipe pile embedded in stiff, overconsolidated clay are presented. These were conducted to provide basis for evaluation mathematical models that predict the relatively low-frequency response is representative systems which primary resonance frequency controlled and stiffness superstructure. Frequency sweep shear forcing functions applied at top mass, simulated simple structure. responses pile-supported points pile, supporting soil recorded determine functions. between cap-mass then examined aid identification pile–soil system parameters most strongly influence response. measured cap function peak amplitude was 0.0022 in./lb (0.0126 mm/N), or about ten times static flexibility, approximately 2.2 Hz.