NDLI: Influence of groundwater level lowering on working behavior of composite foundation

Content Provider	IEEE Xplore Digital Library
Author	Linong Xia Yundong Miao Wuxi Lu
Copyright Year	2011
Description	Author affiliation: School of Civil Engineering and Mechanics, Xiangtan University, XTU, China (Yundong Miao) \|\| Civil Engineering Department, Changsha University, China (Linong Xia; Wuxi Lu)
Abstract	In order to study the influences of groundwater level lowering on the working behavior of composite foundation, both applied load and groundwater level lowering for composite foundation are analyzed by numerical analysis method. Considering the interaction between composite foundation, cushion and foundation, the working behaviors of composite foundation, such as the displacement of soil and reinforced piles, skin friction distribution of pile and pile axial stress are studied fore and after groundwater lowering. The results showed that, compared with non-groundwater lowering, the settlement of foundation, including soil and reinforced pile increase, axial stress in pile enhance, pile-soil stress ratio improve in the same applied load. Increase of load acted on the foundation would promote above-mentioned phenomena. In reinforced piles, the influences of negative skin friction increase gradually, neutral point move down, downdrag caused by negative skin friction increase, skin friction along the piles develop more fully with groundwater lowering more deeper. It may be useful for the research of working behavior of composite foundation after soil settlement.
Starting Page	3196
Ending Page	3199
File Size	358261
Page Count	4
File Format	PDF
ISBN	9781424494361
e-ISBN	9781424494392
DOI	10.1109/MACE.2011.5987669
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Settlement Numerical analysis Friction Skin friction Soil Educational institutions Composite foundation Skin Behavior Stress Civil engineering Groundwater level lowering
Content Type	Text
Resource Type	Article

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