|本期目录/Table of Contents|

[1]张长生,张伯友,刘国楠,等.应用沉降速率推算剩余沉降及卸载时间[J].地球科学与环境学报,2005,27(04):28-32.
　ZHANG Chang-sheng,ZHANG Bo-you,LIU Guo-nan,et al.Application of Settlement-Velocity to Calculate Residual Settlement and Unloading Time[J].Journal of Earth Sciences and Environment,2005,27(04):28-32.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第27卷
期数:
2005年第04期
页码:
28-32
栏目:
出版日期:
2005-11-15

文章信息/Info

Title:
Application of Settlement-Velocity to Calculate Residual Settlement and Unloading Time
作者:
张长生1; 2; 张伯友1; 刘国楠3; 魏勇作1
1.中国科学院广州地球化学研究所,广州510640;2.中国科学院研究生院, 北京100039;3.铁道部科学研究院深圳研究设计院,广东深圳518034
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
关键词:
沉降速率; 软粘土; 地基处理; 剩余沉降; 工后沉降; 卸载时间
Keywords:
Settlement-velocity;  soft clay;  foundation soil treatment;  residual settlement;  post construction settlement;  unloading time
分类号:
TU433
DOI:
-
文献标志码:
A
摘要:
在地基处理工程中工后沉降和沉降速率是卸载的重要标准,次固结沉降可以估算在一定范围 内,工后沉降满足要求与否则主要由剩余主固结沉降控制。基于砂进固结理论和Asaoka方法可以推算 出在堆载预压任意时间的沉降速率,运用沉降速率和剩余主固结沉降的关系,就可以推算出任意时间的 主固结剩余沉降及卸载时间。在深圳—香港西部通道填海及地基处理工程中,此方法应用效果较好。
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.

参考文献/References:

[1] 地基处理手册编写委 员会. 地基处 理手册[K] . 北京 :中 国建 筑工业出版社 , 1988.
[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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备注/Memo

备注/Memo:
[收稿日期]2005-01-14
[作者简介]张长生(1970-),男,黑龙江尚志人,博士研究生,从事软基处理监测工作和研究。
更新日期/Last Update: 1900-01-01