A Simple Method for Calculating Settlement-Time Curves of PVD-Improved Deposits


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Аннотация

A simple method has been proposed for calculating the settlement-time curves of deposits improved by prefabricated vertical drains (PVDs). This method considers the vertical and radial horizontal drainage effects of a surface/bottom layer on the degree of consolidation of the PVD-improved deposit and the time-dependent loading. An approximate method with appropriately subdivided loading steps was developed to evaluate the consolidation of PVD-improved deposits induced by a time-dependent loading; the utility of the proposed method was verified by numerical investigations using finite element analyses. Finally, an experimental analysis of a test embankment was conducted on a PVD improved deposit in China to demonstrate the usefulness of the proposed settlement prediction method.

Авторлар туралы

Fang Xu

School of Civil Engineering, Central South University; National Engineering Laboratory for High Speed Railway Construction

Email: nierusong97@csu.edu.cn
ҚХР, Changsha; Changsha

Jinchun Chai

Department of Civil Engineering and Architecture, Saga University

Email: nierusong97@csu.edu.cn
Жапония, Saga

Rusong Nie

School of Civil Engineering, Central South University; National Engineering Laboratory for High Speed Railway Construction

Хат алмасуға жауапты Автор.
Email: nierusong97@csu.edu.cn
ҚХР, Changsha; Changsha

Wuming Leng

School of Civil Engineering, Central South University; National Engineering Laboratory for High Speed Railway Construction

Email: nierusong97@csu.edu.cn
ҚХР, Changsha; Changsha

Qi Yang

School of Civil Engineering, Central South University; National Engineering Laboratory for High Speed Railway Construction

Email: nierusong97@csu.edu.cn
ҚХР, Changsha; Changsha

Yang Zhou

Institute of Geotechnical and Underground Engineering, Huazhong University of Science and Technology

Email: nierusong97@csu.edu.cn
ҚХР, Wuhan

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© Springer Science+Business Media, LLC, part of Springer Nature, 2019