|本期目录/Table of Contents|

[1]米海珍,归娜.垫层法处理大厚度填土地基时地基缺陷的影响[J].建筑科学与工程学报,2012,29(04):120-126.
　MI Hai-zhen,GUI Na.Influences of Foundation Defect on Large Thickness Fill Soil Foundation by Using Cushion Method[J].Journal of Architecture and Civil Engineering,2012,29(04):120-126.
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垫层法处理大厚度填土地基时地基缺陷的影响(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
29卷
期数:
2012年04期
页码:
120-126
栏目:
出版日期:
2012-12-30

文章信息/Info

Title:
Influences of Foundation Defect on Large Thickness Fill Soil Foundation by Using Cushion Method
作者:
米海珍,归娜
兰州理工大学 土木工程学院,甘肃 兰州 730050
Author(s):
MI Hai-zhen, GUI Na
School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
关键词:
地基缺陷;  灰土垫层;  基础形式;  筏板基础;  大厚度填土
Keywords:
foundation defect;  lime-soil cushion;  foundation form;  raft foundation;  large thickness fill soil
分类号:
TU473.2
DOI:
-
文献标志码:
A
摘要:
为对巨厚(10 m以上)人工堆填土地基处理时土层可能存在缺陷的影响进行评价,并采用三维有限元方法进行了数值模拟。以基底位移为影响结果,考虑以下几个因素:缺陷类型(位置、面积)、基础形式、荷载大小、垫层厚度。结果表明:筏板基础在基础形式中最优; 缺陷面积相同时,缺陷分布越集中对垫层的危害越大; 增加垫层厚度是有效的方法,但增大到一定值时效果有所下降,因此建议将改善垫层材料的整体性(强度、刚度)作为首要因素考虑。
Abstract:
To assess the influence of potential defect on giant thick artificial filled soil foundation, the numerical simulation was carried out by using finite element method. The cushion bottom displacement was chosen as influence result, then the following factors including defect types(position, area), foundation form, load size and cushion thickness were considered. Results show that the raft foundation is the best in the all forms; the cushion get more unstable with additional concentration of the defect distribution. Although increasing cushion thickness is an effective method, the effect can reduced when the cushion thickness beyond a certain value. Therefore, authors suggest that the integrity(strength, stiffness)of cushion material can be considered as primary factor.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2012-06-07
作者简介:米海珍(1956-),男,甘肃镇原人,教授,工学博士,E-mail:mihaizhen@126.com。
更新日期/Last Update: 2012-12-20