黄泛区饱和粉土动强度特性试验研究

山东大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (3): 78-81.

黄泛区饱和粉土动强度特性试验研究

李晓静1,姚凯2*,李术才1,张超2

1. 山东大学岩土与结构工程研究中心, 山东济南 250061;
2. 山东大学土建与水利学院, 山东济南 250061

收稿日期:2011-03-28 出版日期:2011-06-16 发布日期:2011-03-28
通讯作者: 姚凯(1988- ),男,山东临沂人,硕士研究生,主要研究方向为地基处理,路面病害等. Email:yz20032006@163.com E-mail:yz20032006@163.com
作者简介:李晓静(1980- ),男,山东潍坊人，副教授,博士后,主要研究方向为岩土体稳定性. Email:li8021@163.com
基金资助:
山东省交通科技资助项目(2008Y002)

Test study on dynamic characteristics of saturated
silt in the Yellow River flood area

LI Xiaojing1, YAO Kai2*, LI Shucai1, ZHANG Chao2

1. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China;
2. School of Civil Engineering, Shandong University, Jinan 250061, China

Received:2011-03-28 Online:2011-06-16 Published:2011-03-28

摘要/Abstract

摘要：

选取黄泛区滨德高速公路4组试样,其密度和黏粒含量各不相同。通过动三轴试验,研究了黄泛区饱和粉土的动强度特性,得出密实度和黏粒含量对动强度的影响规律。试验结果表明:在相同的黏粒含量、固结比和固结应力条件下,黄泛区粉土的动强度随着密实度的增大而增大;在相同的黏粒含量、干密度条件下,随着固结比的增大,黄泛区粉土的动强度有增大的趋势,但随着固结比的继续增大,动强度增大的幅度逐渐减小;在干密度相同时,动强度随着黏粒含量的增加呈增大的趋势。以上结论能够为今后公路工程中防治粉土液化提供重要的理论依据。

关键词: 黄泛区, 饱和粉土, 动强度, 密实度, 黏粒含量

Abstract:

Four kinds of samples were obtained, and their density and content of clay were different from each other. The dynamic characteristics of saturated silt in the Yellow River flood area were studied. From the triaxial test results, it was showed that the dynamic strength of saturated silt was influenced by its density and content of clay. The dynamic strength increased with density when the content of clay、consolidation ratio and consolidation stress were the same. The dynamic strength increased with the consolidation ratio when the content of clay and dry density were the same. The dynamic strength increased with the content of clay when the dry density was the same. The conclusions provide an important theoretical basis for preventing liquefaction of silt in road construction.

Key words: the Yellow River flood area, saturated silt, dynamic strength, density, content of clay

李晓静1,姚凯2*,李术才1,张超2. 黄泛区饱和粉土动强度特性试验研究[J]. 山东大学学报(工学版), 2011, 41(3): 78-81.

LI Xiaojing1, YAO Kai2*, LI Shucai1, ZHANG Chao2. Test study on dynamic characteristics of saturated
silt in the Yellow River flood area[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2011, 41(3): 78-81.

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