[1]蒋坪临,张建新,王楚楚,等.循环振动荷载下氯盐渍土的溶陷特性[J].深圳大学学报理工版,2018,35(1):62-69.[doi:10.3724/SP.J.1249.2018.01062]
　JIANG Pinglin,ZHANG Jianxin,WANG Chuchu,et al.Collapsibility of chlorine saline soil under cyclic vibration load[J].Journal of Shenzhen University Science and Engineering,2018,35(1):62-69.[doi:10.3724/SP.J.1249.2018.01062]
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循环振动荷载下氯盐渍土的溶陷特性()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第35卷
期数:
2018年第1期
页码:
62-69
栏目:
土木建筑工程
出版日期:
2018-01-12

文章信息/Info

Title:
Collapsibility of chlorine saline soil under cyclic vibration load
文章编号:
201801010
作者:
蒋坪临1; 张建新2; 3; 王楚楚2; 岳晓鹏2
1） 中国矿业大学（北京）力学与建筑工程学院，北京 100038
2）天津城建大学土木工程学院，天津 300384；3）天津市软土特性与工程环境重点实验室，天津 300384
Author(s):
JIANG Pinglin1;  ZHANG Jianxin2; 3;  WANG Chuchu2;  and YUE Xiaopeng2
1) School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing 100083，P.R.China
2) School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, P.R.China
3) Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin 300384, P.R.China
关键词:
岩土工程; 氯盐渍土; 溶陷; 循环振动荷载; 溶陷系数; 耦合溶陷敏感因子; 线性回归
Keywords:
geotechnical engineering; chlorine saline soil;  collapsibility;  cyclic vibration load;  collapsibility coefficient;  the coupling collapsibility sensitive factor;  linear regression
分类号:
TU 411.2
DOI:
10.3724/SP.J.1249.2018.01062
文献标志码:
A
摘要:
为探究循环荷载作用下氯盐渍土溶陷特性的变化规律，通过室内溶陷和循环振动实验，引入了多因素耦合作用下影响土体溶陷特性的耦合溶陷敏感因子，进行多元线性回归分析，总结循环往复荷载作用下氯盐渍土溶陷特性的变化规律. 结果表明，耦合溶陷敏感因子随着循环次数的增加呈现出先快后缓的特点，且随荷载的增大，增幅减小；相同荷载作用下，耦合溶陷敏感因子随含水率的增加而增大；耦合溶陷敏感因子随含盐量的增加呈先增大后减小的趋势，且荷载越大，耦合溶陷敏感因子越小，表明荷载和含盐量耦合作用时，荷载具有减小土体溶陷的特性.多元线性回归分析表明，循环次数对耦合溶陷敏感因子值的贡献最大，初始含水率和荷载次之，且贡献相当，含盐量贡献最低.
Abstract:
In order to investigate the variation regulation of the dissolved characteristics of the chlorine saline soil under cyclic loading, we introduce the coupling collapsibility sensitive factor to describe load coupling factors of soil solution collapse characteristics under the cyclic loading, and carry out the multiple linear regression analysis. The coupling collapsibility sensitive factor grows fast at first with the increase of the number of cycles and then grows gradually slowly. At the same time, the rate of increase becomes smaller with the increase of the load. Under the same load, the sensitive factors of coupling and trapping increase with the increase of water content. The coupling collapsibility sensitive factor presents the trend of increase at first and then decrease with increase of salinity, and the bigger the load, the smaller the factor, which indicates that under the effects of both the load and the salt content, the load has the characteristics of reducing the soil collapsibility. By the multiple linear regression analysis, it is found that the influence of the number of cycles on the coupling collapsibility sensitive factor is the largest, then the influence of the initial water content and the load, and the influence of the salt content is the lowest.

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备注/Memo

备注/Memo:
Received：2016-11-21；Revised：2017-10-17；Accepted：2017-11-17
Foundation：Tianjin Application Foundation and Cutting-Edge Technology Research Project Focus Project (13JCZDJC35500)；Tianjin City High School Science & Technology Fund Planning Project（20140910）
Corresponding author：Professor ZHANG Jianxin． E-mail: zh-jianxin@126.com
Citation：JIANG Pinglin，ZHANG Jianxin，WANG Chuchu，et al. Collapsibility of chlorine saline soil under cyclic vibration load［J］. Journal of Shenzhen University Science and Engineering, 2018, 35(1): 62-69.（in Chinese）
基金项目：天津市应用基础与前沿技术研究计划重点资助项目（13JCZDJC35500）；天津市高等学校科技发展基金计划资助项目 (20140910)
作者简介：蒋坪临（1990—），男，中国矿业大学（北京）博士研究生. 研究方向：复杂应力路径下土体的动力特性. E-mail：jpl2014@126.com
引文：蒋坪临，张建新，王楚楚，等．循环振动荷载下氯盐渍土的溶陷特性［J］. 深圳大学学报理工版，2018，35(1)：62-69.
更新日期/Last Update: 2017-12-22