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Effectiveness of a Buttress Wall in Reducing Retaining Wall Movement During Dewatering Before Bulk Excavation by Chao-Feng Zeng; William Powrie; Xiu-Li Xue; Miao-Kun Li; Guo-Xiong Mei is a Engineering article available to read on EtoBox.

What is Effectiveness of a Buttress Wall in Reducing Retaining Wall Movement During Dewatering Before Bulk Excavation about?

Retaining wall movements are often estimated from a datum at the start of soil excavation. However, recent studies indicate that significant wall movements may occur during pre-excavation dewatering. In this study, the effectiveness of a buttress wall (that is, a short length of wall at 90°to the main wall) in limiting wall movement during pre-excavation dewatering is investigated numerically, focusing in particular on the buttress wall length (L B ). Results indicate that wall movement decreases as L B increases. However, a smaller L B (less than 50% of the excavation width) may be sufficient if the drawdown or pumped depth is small (less than 30% of the total depth of retaining wall). With drawdowns greater than 60% of the total wall depth, a larger L B (greater than 75% of the excavation width) is needed to effectively control the deformation.

Who reads Effectiveness of a Buttress Wall in Reducing Retaining Wall Movement During Dewatering Before Bulk Excavation?

Author

Chao-Feng Zeng; William Powrie; Xiu-Li Xue; Miao-Kun Li; Guo-Xiong Mei

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Engineering (Physical Sciences)