新建铁路软土路基沉降规律研究

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Abstract Research purposes：Due to the high compressibility, low permeability and long lasting time of consolidation and deformation of soft soil subgrade, it is important to do the research on the settlement law of the soft soil subgrade in engineering design. To study the settlement law of soft soil subgrade in a certain period of time, the detailed monitoring works were carried out to the soft soil subgrade of new-built Jiaozhou-Xinyi Railway for 2 years for analyzing the settlement and deformation laws of the soft subgrade.

Research conclusions：The differential settlement of embankment soil had the obvious unevenness in the lateral direction. Before opening to traffic, the degree of differential settlement of embankment increased with increase of the compression volume. One year later after opening to traffic, the settlement of the embankment became slow and the lateral uneven deformation of embankment soil decreased, but the embankment settlement hardly changed. The post-construction settlement caused by the horizontal displacement of soil was less than 9% of the total settlement. The change law of the magnetic cells elevation showed that the subgrade was in stable status about in 6 to 8 months after implement of construction.

Key words： soft soil subgrade settlement Jiaozhou-XinyiRailway differential settlement stability

Received: 26 November 2009

PACS:

U213.1+4

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	LIU Sheng-chuan
	CAO Yuan

Cite this article:

LIU Sheng-chuan,CAO Yuan. Research on Settlement Law of Soft Soil Subgrade of New Railway[J]. 铁道工程学报, 2010, 27(5): 1-3.

URL:

http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2010/V27/I5/1

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