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Application of Settlement-Velocity to Calculate Residual Settlement and Unloading Time(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2005年第04期
Page:
28-32
Research Field:
Publishing date:

Info

Title:
Application of Settlement-Velocity to Calculate Residual Settlement and Unloading Time
Author(s):
ZHANG Chang-sheng1; 2; ZHANG Bo-you1; LIU Guo-nan3; WEI Yong-zuo1
1. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; 2. Graduate School, Chinese Academy of Sciences, Beijing 100039, China; 3. Shenzhen Branch, China Academy of Railway Sciences, Shenzhen 518034, Guangdong, China
Keywords:
Settlement-velocity;  soft clay;  foundation soil treatment;  residual settlement;  post construction settlement;  unloading time
PACS:
TU433
DOI:
-
Abstract:
The settlement-velocity and post construction settlement including residual settlement and secondary consolidation settlement are very important unloading standard in foundation soil treatment project. The secondary consolidation settle- ment can be estimated within range, and the post construction settlement is mainly controlled by residual settlement. In Asaoka method, the settlement-velocity can be calculated in preloading anytime. By applying the relationship between settle- ment-velocity and residual settlement, the residual settlement and unloading time can also be computed. The relationship be- tween settlement-velocity’ s logarithm and preloading time is linearity, thus the unloading time can be confirmed by the graph. The method is very effective in Shenzhen-Hongkong West Passage fill seafront and foundation soil treatment project, and may have preferable application value.

References:

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[2] 刘吉福 , 陈新华. 应用沉降速率法计算软土 路堤剩余沉降[J] . 岩土工程学报 , 2003 , 25(2):32 36.
[3] 李福民 , 赵有明. 深 圳软土地 基处理中 Asaok a 法 的应用[J] . 中国铁道科学 , 2002 , 23(4):38 42.
[4] 毛新虎. 大同 —运城高速公路某 软基复合地基检测结果分析 [J] . 地球科学与环境学报 , 2004 , 26(1):33 37.

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Last Update: 1900-01-01