TY - GEN
T1 - Numerical Modeling of Grout Injection for Hybrid Bored Prestressed Concrete Cased Piles
AU - Hu, Hesong
AU - Prabhu, Sudheer
AU - Chen, Xiaobin
AU - Qiu, Tong
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2021
Y1 - 2021
N2 - In this paper, a numerical analysis of grout flow in a narrow 10-mm soil-pile gap was conducted using the ANSYS Fluent software. The Volume of Flow (VOF) method was used to model the grout flow through the soil-pile gap. Two-phase transient flow simulations were carried out with grout and air being the two immiscible fluids. Four different pile diameters of 800, 1000, 120,0 and 1400 mm were considered and for each pile diameter, grouts with two different water-cement ratios of 0.4 and 0.5 were pumped into the soil-pile gap. Numerical results indicate that: (1) for the same pile diameter and grout pressure, the height of grout flow increases as the water-cement ratio increases from 0.4 to 0.5; (2) for the same grout pressure, the height of grout flow decreases as the pile diameter increases; (3) for a give pile diameter and water-cement ratio, the final grout height is mainly dependent on the grout pressure but insensitive to the inlet configuration; and (4) the two-inlet configuration is more effective in eliminating entrapped air at the bottom of the pile than the three- and four-inlet configurations.
AB - In this paper, a numerical analysis of grout flow in a narrow 10-mm soil-pile gap was conducted using the ANSYS Fluent software. The Volume of Flow (VOF) method was used to model the grout flow through the soil-pile gap. Two-phase transient flow simulations were carried out with grout and air being the two immiscible fluids. Four different pile diameters of 800, 1000, 120,0 and 1400 mm were considered and for each pile diameter, grouts with two different water-cement ratios of 0.4 and 0.5 were pumped into the soil-pile gap. Numerical results indicate that: (1) for the same pile diameter and grout pressure, the height of grout flow increases as the water-cement ratio increases from 0.4 to 0.5; (2) for the same grout pressure, the height of grout flow decreases as the pile diameter increases; (3) for a give pile diameter and water-cement ratio, the final grout height is mainly dependent on the grout pressure but insensitive to the inlet configuration; and (4) the two-inlet configuration is more effective in eliminating entrapped air at the bottom of the pile than the three- and four-inlet configurations.
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U2 - 10.1007/978-3-030-80152-6_8
DO - 10.1007/978-3-030-80152-6_8
M3 - Conference contribution
AN - SCOPUS:85125719427
SN - 9783030801519
T3 - Sustainable Civil Infrastructures
SP - 100
EP - 112
BT - Advances in Urban Geotechnical Engineering - Proceedings of the 6th GeoChina International Conference on Civil and Transportation Infrastructures
A2 - Kim, S. Sonny
A2 - Moghal, Arif Ali
A2 - Yao, Jia-liang
PB - Springer Science and Business Media B.V.
T2 - 6th GeoChina International Conference on Civil and Transportation Infrastructures: From Engineering to Smart and Green Life Cycle Solutions, GeoChina 2021
Y2 - 19 July 2021 through 21 July 2021
ER -