NDLI: Analysis of surcharge preloading reinforcement effect in a certain expressway's soft foundation

Content Provider	IEEE Xplore Digital Library
Author	Wu Yuedong Zhong Guangqiang Di Xiaolei
Copyright Year	2011
Description	Author affiliation: Design Consulting Dept., BEIJING NORTH-STAR POWER, ENGINEERING Co.LTD., China (Di Xiaolei) \|\| Geotechnical Research Institute, Hohai University, hhu, Nanjing, China (Wu Yuedong; Zhong Guangqiang)
Abstract	The surcharge preloading can control the post-construction settlement of expressway foundation in soft soil area effectively, and it has great influence on the well operation of expressway. This paper analyzes the mechanism of surcharge preloading, and comes up with a conception of OEF, which can describe the reinforcement effect of road foundation accurately. By analyzing the settlement data about thousands of sections of the expressway in soft soil area, combining with the formation condition, the settlement regulation of soft soil foundation affected by the filling depth and surcharge preloading duration is summarized. The result shows that: with the increase of filling depth, the overall settlement of road foundation makes a rise; in addition, there is an approximate linear relation between the filling depth and primary consolidation settlement. While the OEF is in a low level, the effect of surcharge preloading is distinct. When the OEF goes to a certain degree, the effect of surcharge preloading will get down. There is an optimal duration of surcharge preloading, which can reduce the post-construction settlement and has excellent economic benefits. This conclusion has the reference significance to the design and applications of surcharge preloading of expressway soft foundation.
Starting Page	1958
Ending Page	1961
File Size	366472
Page Count	4
File Format	PDF
ISBN	9781457702891
e-ISBN	9781457702907
DOI	10.1109/ICETCE.2011.5774448
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Economics OEF The post-construction settlement Roads Design methodology Soft foundation The surcharge preloading Soil Filling IP networks
Content Type	Text
Resource Type	Article

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