Experimental Study for the Trial Making and Calibration of the Earth Pressure Cells

土圧計の試作と検定に関する実験的研究

Experimental Study for the Trial Making and Calibration of the Earth Pressure Cells

Creators Ohara Sukeo

Creators Yamamoto Tetsuro

Creators Oka Takashi

This paper describes experimental studies on the performance of the earth pressure cells designed in our laboratory. These earth pressure cells were calibrated under air pressure and soil pressure. Under air calibration, the calibration curves became nearly stable line. Under soil calibration, however, the calibration curves draw hysterisis roop during one cycle loading and unloading. We have newly introduced the nondimentional parameters E and H, for error of the calibration factor and for the hysterisis respectively. E and H are correlated with the rigidities, the diameters of the cells and the physical properties of the soils, and some of their relations are shown quantitatively for the practical use.

[ISSN]0372-7661

[NCID]AN00244228