[1]钟勇强,黄晓明,廖公云,等.融沉变形对柔性路面应力应变影响试验研究[J].东南大学学报(自然科学版),2011,41(1):181-185.[doi:10.3969/j.issn.1001-0505.2011.01.035]
 Zhong Yongqiang,Huang Xiaoming,Liao Gongyun,et al.Influence of thawing settlement deformation on stress and strain in flexible pavement[J].Journal of Southeast University (Natural Science Edition),2011,41(1):181-185.[doi:10.3969/j.issn.1001-0505.2011.01.035]
点击复制

融沉变形对柔性路面应力应变影响试验研究()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
41
期数:
2011年第1期
页码:
181-185
栏目:
交通运输工程
出版日期:
2011-01-20

文章信息/Info

Title:
Influence of thawing settlement deformation on stress and strain in flexible pavement
作者:
钟勇强12黄晓明1廖公云1路畅3何平1
(1东南大学交通学院, 南京 210096)
(2淮阴工学院交通学院, 淮安 223003)
(3河南中原高速公路股份有限公司, 郑州 450052)
Author(s):
Zhong Yongqiang12Huang Xiaoming1Liao Gongyun1Lu Chang3He Ping1
(1School of Transportation, Southeast University,Nanjing 210096,China)
(2College of Transportation, Huaiyin of Institute Technology,Huai’an 223003,China)
(3Henan Zhongyuan Expressway Company Limited, Zhengzhou 450052, China)
关键词:
融沉变形柔性基层沥青路面应力应变室内试验
Keywords:
thawing settlement deformation flexible base asphalt pavement stress and strain laboratory experiment
分类号:
U416.2
DOI:
10.3969/j.issn.1001-0505.2011.01.035
摘要:
为了研究多年冻土地区路基融沉变形对柔性路面力学性能的影响,采用松铺土和埋设工业冰块2种冻土路基融沉变形模拟方法,修建室内大尺度柔性路面结构试槽并逐层埋设传感器.采用承载板试验方法进行柔性路面面层和基层应力应变检测,通过检测数据的分析得出了融沉变形对柔性路面应力应变的影响规律.结果表明:松铺土测点和埋设工业冰块测点面层与基层层底应变相比正常测点均显著提高,融沉测点面层比正常测点承受了更多的压应力.融沉变形对各层层底应变特别是基层层底应变的非线性特征影响较大,幂函数可以很好地描述其非线性变化规律.研究成果将为冻土地区柔性路面设计提供参考.
Abstract:
In order to study the influence of subgrade thawing settlement deformation on the mechanical properties of flexible pavement in permafrost region, two thawing settlement deformation simulation methods of frozen soil subgrade, i. e. loose paving soil and burying industrial ice block, were adopted. Laboratory large-scale experiment tank of flexible pavement structure was built and transducers were buried layer by layer. The stress and strain detection of flexible pavement surface course and base course were carried out by bearing plate test method. Through the analysis of detection data, the influence law of thawing settlement deformation on stress and strain of flexible pavement was obtained. The results show that the bottom strain of surface course and base course of loose paving soil and burying industrial ice block measuring points are both significantly increased compared to the normal measuring points. The surface course of thawing settlement measuring point bears more stress than the surface course of normal measuring point. Thawing settlement deformation has a larger effect on nonlinear characteristics of strain in layers bottom especially bottom of base course. Power function can well describe its nonlinear variation law. The research result will provide a reference for flexible pavement design in permafrost regions.

参考文献/References:

[1] 汪双杰.多年冻土地区公路修筑技术[M].北京:人民交通出版社,2008.
[2] 武憼民,汪双杰,章金钊.多年冻土地区公路工程[M].北京:人民交通出版社,2005.
[3] 汪双杰,李祝龙.中国多年冻土地区公路修筑技术研究[J].公路交通科技,2008,25 (1):1-9.
  Wang Shuangjie,Li Zhulong.Research on highway construction technology in the permafrost region of China[J]. Journal of Highway and Transportation Research and Development,2008,25(1):1-9.(in Chinese)
[4] 钟勇强.循环荷载下粉质粘土塑性变形的数值模拟研究[J].路基工程,2009(1):110-112.
  Zhong Yongqiang.Numerical simulation research of silt clay plastic deformation under cyclic loading[J].Subgrade Engineering,2009(1):110-112.(in Chinese)
[5] 姬杨蓓蓓,马骉,王秉纲.冻土地区路基融沉变形对沥青路面结构的影响[J].中国公路学报,2006,19(5):1-5.
  Jiyang Beibei,Ma Biao,Wang Binggang.Influence of subgrade settlement deformation in frozen soil zone on asphalt pavement structure[J].China Journal of Highway and Transport,2006,19(5):1-5.(in Chinese)
[6] 邓学钧,黄晓明.路面设计原理与方法[M].2版.北京:人民交通出版社,2006.
[7] 黄仰贤.路面分析与设计[M].北京:人民交通出版社,1998.
[8] 马骉,鲍燕妮,姬杨蓓蓓.多年冻土地区路基不均匀融沉变形计算分析[J].公路交通科技,2007,24(1):6-9.
  Ma Biao,Bao Yanni,Jiyang Beibei.Calculation and analysis of subgrade’s non-uniform melt settlement deformation in perennially frozen soil zone[J].Journal of Highway and Transportation Research and Development,2007,24(1):6-9.(in Chinese)
[9] 邱延峻,艾长发,黄兵,等.高寒地区沥青路面结构适应性[J].西南交通大学学报,2009,44(2):147-154.
  Qiu Yanjun,Ai Changfa,Huang Bing,et al.Field investigation and structural integrity of asphalt pavement in cold regions[J].Journal of Southwest Jiaotong University,2009,44(2):147-154.(in Chinese)
[10] Nixon J F.Discrete ice lens theory for frost heave in soils [J].Canadian Geotechnical Journal,1991,28(8):843-859.

备注/Memo

备注/Memo:
作者简介:钟勇强(1980—),男,博士生;黄晓明(联系人),男,博士,教授,博士生导师,huangxm@seu.edu.cn.
基金项目:西部交通建设资助项目(200731849055).
引文格式: 钟勇强,黄晓明,廖公云,等.融沉变形对柔性路面应力应变影响试验研究[J].东南大学学报:自然科学版,2011,41(1):181-185.[doi:10.3969/j.issn.1001-0505.2011.01.035]
更新日期/Last Update: 2011-01-20