The Use of Tactile Sensors and PIV Analysis for Understanding the Bearing Mechanism of Pile Groups

Sensors

Zhijia You¹  Yulong Chen² 

[1] College of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao 266590, China;Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China;

关键词: model test;    group pile;    interaction;    tactile sensor;    PIV;   

DOI  :  10.3390/s18020476

来源: DOAJ

【 摘 要 】

Model tests were carried out in dry silica sand under pile loading and visualizing observation to investigate the behavior of a pile group. The pile group consisted of nine cylindrical model piles of 40 mm in diameter in most tests or three rectangular parallelepiped model piles in the visualizing observation. Pile spacings of 200 mm and 100 mm between pile centers were used in the models. Tactile sensors were installed to measure the pressure distribution in the ground and colored sand layer with particle image velocimetry (PIV) analysis to reveal the ground deformation in addition to strain gauges inside the model piles to investigate the interaction among group piles. The tests results showed that a narrower spacing between piles resulted in a wider affected area of the ground and the interaction was more significant below the tips.

【 授权许可】

Unknown