Please wait a minute...
浙江大学学报(工学版)
浙江大学学报(工学版)  2017, Vol. 51 Issue (7): 1309-1316    DOI: 10.3785/j.issn.1008-973X.2017.07.006
土木工程     
部分排水条件下饱和红黏土循环试验研究
吴建奇1,2,3, 杨骁1, 徐旭1, 刘飞禹1
1. 上海大学 土木工程系, 上海 200072;
2. 江西理工大学 建筑与测绘工程学院, 江西 赣州 341000;
3. 江西省环境岩土与工程灾害控制重点实验室, 江西 赣州 341000
Cyclic triaxial tests on saturated red clay under partially drained condition
WU Jian-qi1,2,3, YANG Xiao1, XU Xu1, LIU Fei-yu1
1. Department of Civil Engineering, Shanghai University, Shanghai 200072, China;
2. School of Architectural and Surveying and Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China;
3. Environmental Ground and Disaster Control Key Laboratory of Jiangxi Province, Ganzhou 341000, China
 全文: PDF(2148 KB)   HTML
摘要：

为了研究交通荷载作用下路基天然黏土层的长期动力特性，采用GDS循环三轴系统，对赣南地区的路基红黏土开展部分排水条件下大次数循环荷载试验.研究部分排水条件下红黏土的孔压累积和模量变化情况，分析循环应力比、平均初始固结压力、初始固结应力比对红黏土累积变形的影响.研究结果表明，红黏土的最终竖向累积变形随循环应力比和初始固结应力比的增大而指数型增大，随平均初始固结压力的增大而线性增大，提出考虑循环应力比、平均初始固结压力、初始固结应力比和循环次数的累积应变模型，通过不同动应力状态下红黏土累积应变随循环次数发展曲线的归一化表明了该累积应变模型的正确性.
Abstract:

Series of cyclic triaxial tests were conducted on saturated red clay derived from GanNan area in partially drained condition with large-number cycles in order to analyze the long-term behavior of saturated red clay in subgrade under traffic load. Pore pressure accumulation and rebound modulus were analyzed, and special attention was paid on the axial strain accumulation of saturated red clay under different cycle stress ratios, average initial consolidation pressures and initial consolidation stress ratios. Results show that the final axial strain accumulation exponentially increases with increasing cycle stress ratio and initial consolidation stress ratio, and linearly increases with increasing average initial consolidation pressure. An axial strain accumulation model was proposed considering cycle stress ratios, average initial consolidation pressures and number of cycles. The normalization of axial strain accumulation suggested the correctness of proposed model.
收稿日期: 2016-06-04 出版日期: 2017-07-08
CLC:  TU411  
基金资助:

国家自然科学基金资助项目（ZXLG20140030）
通讯作者: 杨骁,男,教授.ORCID:0000-0001-9024-5199.     E-mail: xyang@shu.edu.cn
作者简介: 吴建奇(1980—),男,副教授,从事岩土工程土动力学的研究.ORCID:0000-0003-4033-4200.E-mail:wujq1980@163.com
服务　　
把本文推荐给朋友
加入引用管理器
E-mail Alert
作者相关文章　　

引用本文:

吴建奇, 杨骁, 徐旭, 刘飞禹. 部分排水条件下饱和红黏土循环试验研究[J]. 浙江大学学报(工学版), 2017, 51(7): 1309-1316.

WU Jian-qi, YANG Xiao, XU Xu, LIU Fei-yu. Cyclic triaxial tests on saturated red clay under partially drained condition. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(7): 1309-1316.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2017.07.006    或    http://www.zjujournals.com/eng/CN/Y2017/V51/I7/1309

[1] 工程地质手册编委会.工程地质手册[M].北京:中国建筑工业出版社,2007: 55-61.
[2] 康景文,甘鹰,张仕忠,等.昆明新机场红黏土冲压地基处理实验研究[J].岩土工程学报,2010, 32(增2):496-500. KANG Jing-wen, GAN Ying, ZHANG Shi-zhong, et al. Original stamping foundation treatment of red clay of new airport in Kunming [J]. Chinese Journal of Geotechnical Engineering, 2010, 32(supple.2): 496-500.
[3] 黄质宏,朱立军,廖义玲,等.不同应力路径下红粘土的力学特性[J].岩石力学与工程学报,2004, 23(15): 2599-2603. HUANG Zhi-hong, ZHU Li-jun, LIAO Yi-ling, et al. Mechanical properties of red clay under different stress paths [J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(15): 2599-2603.
[4] 李剑,陈善雄,姜领发,等.应力历史对重塑红黏土动力特性影响的试验研究[J].岩土工程学报,2014, 36(9): 1657-1665. LI Jian, CHEN Shan-xiong, JIANG Ling-fa, et al. Experimental study on influence of stress history on dynamic properties of remolded red clay [J]. Chinese Journal of Geotechnical Engineering, 2014, 36(9): 1657-1665.
[5] 陈颖平,黄博,陈云敏.循环荷载作用下软黏土不排水累积变形特性[J].岩土工程学报,2008,30(5): 764-768. CHEN Ying-ping, HUANG Bo, CHEN Yun-min. Deformation and strength of structure soft clay under cyclic loading [J]. Chinese Journal of Geotechnical Engineering, 2008, 30(5): 764-768.
[6] 蔡袁强,王军,海钧.双向激振循环荷载作用下饱和软黏土强度和变形特性研究[J].岩石力学与工程学报,2008,27(3)：495-504. CAI Yuan-qiang, WANG Jun,HAI Jun. Study of strength and deformation behaviors of soft clay under bidirectional exciting cyclic loading [J]. Chinese Journal of Rock Mechanics and Engineering, 2008,27(3)：495-504.
[7] 张勇,孔令伟,郭爱国,等.循环荷载下饱和软黏土的累积塑性应变试验研究[J].岩土力学,2009,30(6):1542-1548. ZHANG Yong, KONG Ling-wei, GUO Ai-guo, et al. Cumulative plastic strain of saturated soft clay under cyclic loading [J]. Rock and Soil Mechanics, 2009, 30(6): 1542-1548.
[8] AKIRA S, LAWALENNA S, NORIHIKO M. Partially drained cyclic behavior and its application to the settlement of a low embankment road on silty-clay [J]. Soils and Foundations, 2003, 43(1): 33-46.
[9] 丁智,张涛,魏新江,等.排水条件对不同固结度软黏土动力特性影响试验研究[J].岩土工程学报,2015,37(5): 893-899. DING Zhi, ZHANG Tao, WEI Xin-jiang, et al. Experimental study on effect of different drainage conditions on dynamic characteristics of soft clay under different degrees of consolidation [J]. Chinese Journal of Geotechnical Engineering, 2015, 37(5): 893-899.
[10] 王军, 蔡袁强, 郭林, 等. 分阶段循环加载条件下温州饱和软黏土孔压和应变发展规律[J]. 岩土工程学报, 2012, 34(7): 1349-1354. WANG Jun, CAI Yuan-qiang, GUO Lin, et al. Pore pressure and strain development of Wenzhou saturated soft soil under cyclic loading by stages [J]. Chinese Journal of Geotechnical Engineering, 2012, 34(7): 1349-1354.
[11] 郭林, 蔡袁强, 王军. 长期循环荷载作用下排水条件对饱和软黏土动力特性影响[J]. 岩土力学, 2013,34(增2)：94-99. GUO Lin, CAI Yuan-qiang, WANG Jun. Influence of drainage condition on dynamic cyclic behavior of saturated soft clay under long-term cyclic loading [J]. Rock and Soil Mechanics, 2013,34(supple.2)：94-99.
[12] WERKMEISTER S, DAWSON A, WELLNER F. Permanent deformation behavior of granular materials and the shakedown concept [J]. TransportationResearch Record, 2001, 1757(1): 75-81.
[1] 徐辉, 缪建冬, 陈萍, 詹良通, 罗小勇. 药剂稳定化垃圾焚烧飞灰的工程特性测试研究[J]. 浙江大学学报(工学版), 2019, 53(1): 1-10.
[2] 王强, 胡新丽, 徐迎, 周昌, 徐楚. 软岩土石混合体的击实特性与细观机理研究[J]. 浙江大学学报(工学版), 2018, 52(12): 2295-2305.
[3] 陈颖骐, 王全才. 滑坡设计推力优化计算[J]. 浙江大学学报(工学版), 2018, 52(7): 1320-1328.
[4] 黄铭枫, 李强, 涂志斌, 楼文娟. 基于Copula函数的杭州地区多风向极值风速估计[J]. 浙江大学学报(工学版), 2018, 52(5): 828-835.