Changes in earth pressure during the installation of a bored pile were obtained using geo-cells, which had been buried around the piles. Four piles were installed; two of those were steel pipe piles installed by the simultaneous burial method, a concrete pile by conventional pre-boring method and another steel pile by hammer driving. For bored piles, the effective lateral earth pressure at the level of pile tip measured by geo-cells first decreases according with the advancing of drilling rod, then increases and records the maximum value when the tip of the rod reaches the geo-cell level. These features are similar to those of driven pile. The residual earth pressure after installation by the simultaneous burial method even keeps larger value than the inherent earth pressure before installation.
Mendeley helps you to discover research relevant for your work.
CITATION STYLE
Kuwabara, F., Oka, T., Ohtsuki, M., Hibino, S., & Yoshida, S. (2018). Measurement of earth pressure around bored piles during the installation. In ISRM International Symposium 2000, IS 2000. International Society for Rock Mechanics. https://doi.org/10.3130/aijt.6.53_1