Research on settlement control effect of CFG pile-raft structure based on field test of High-speed Railway

被引：0

作者：

Li, Bo ^{[1
]}

Leng, Jing-Yan ^{[1
]}

机构：

[1] The Third Railway Survey and Design Institute Group Corporation, Tianjin 300251, China

来源：

Journal of Railway Engineering Society | 2014年 / 31卷 / 02期

关键词：

Pile foundations - Railroad transportation - Railroads - Piles;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Research purposes: Field tests were conducted at a CFG pile-raft structure working point of Beijing-Shanghai High-speed Railway to investigate the deformation law of reinforced zone and substratum compression and total settlement. A further evaluation was made to investigate the settlement control effect of deep foundation treatment with CFG pile-raft structure. Research conclusions: The result indicates that: (1) The settlement of CFG pile-raft structure meets standard requirements. (2) The substratum settlement is the main part of total settlement, which accounts for 74% of total settlement. (3) The foundation settlement control effect of CFG pile-raft structure is better than that of CFG pile-cap-net. Under current test conditions, the ratio of the former's total settlement to the latter's is 73.5~75%. (4) The analysis showed that, CFG pile-raft structure can be used in preference in unballasted track on soft soil subgrade.

引用

页码：48 / 52

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