[1]刘松玉,邱钰,童立元,等.煤矸石的动力特性试验研究[J].东南大学学报(自然科学版),2005,35(2):280-283.[doi:10.3969/j.issn.1001-0505.2005.02.026]
 Liu Songyu,Qiu Yu,Tong Liyuan,et al.Experimental research on dynamic properties of coal mining wastes[J].Journal of Southeast University (Natural Science Edition),2005,35(2):280-283.[doi:10.3969/j.issn.1001-0505.2005.02.026]
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煤矸石的动力特性试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
35
期数:
2005年第2期
页码:
280-283
栏目:
其他
出版日期:
2005-03-20

文章信息/Info

Title:
Experimental research on dynamic properties of coal mining wastes
作者:
刘松玉1 邱钰2 童立元1 缪林昌1
1 东南大学交通学院, 南京 210096; 2 广东省路桥建设发展有限公司, 广州 510635
Author(s):
Liu Songyu1 Qiu Yu2 Tong Liyuan1 Miao Linchang1
1 College of Transportation, Southeast University, Nanjing 210096, China
2 Guangdong Province Road and Bridge Construction Ltd. Company, Guangzhou 510635, China
关键词:
煤矸石 动三轴试验 动力特性 双曲线 弹塑性模型
Keywords:
coal mining wastes dynamic triaxial compression test dynamic properties hyperbolaelastic-plastic model
分类号:
TD854;TU41
DOI:
10.3969/j.issn.1001-0505.2005.02.026
摘要:
为了分析煤矸石用作高速公路路堤填料的技术可行性,采用固结不排水中型动三轴试验,对煤矸石的动强度、动应变、阻尼比及循环荷载下的动力特性等进行了试验研究.结果表明, 煤矸石的动应力-动应变曲线可用双曲线拟合,试验还获得了双曲线动力本构模型的具体形式及参数; 根据循环荷载下轴向变形的累计特性,提出了改进的渐近屈服面弹塑性模型.该试验成果可用于煤矸石路堤的动强度、动变形及循环荷载下累计变形的计算.
Abstract:
In order to analyze the technical feasibility of filling embankment with colliery waste, the dynamic properties of colliery waste were studied by the consolidated undrained medium-sized dynamic triaxial test, including dynamic strength, strain, damping ratio and characteristics under cyclic load. The results indicate that the dynamic stress-strain curves can be expressed by hyperbola. The dynamic hyperbola constitutive model and its parameters are also acquired. According to the strain accumulation characteristics under cyclic load, the improved elastic-plastic model of asymptotic yield surface is presented. All of the results can be used in computing dynamic strength, deformation and strain accumulation of the colliery waste embankment.

参考文献/References:

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[3] 邱钰.软质粗粒土的工程力学特性与路基工程应用研究[D].南京:东南大学交通学院,2002.
[4] Das B M 著.土动力学原理[M].吴世明等译.杭州:浙江大学出版社,1984.184-197.
[5] 王昆耀,常亚屏,陈宁.往返荷载下粗粒土的残余变形特性[J].土木工程学报,2000,33(3):48-53.
  Wang Kunyao,Chang Yaping,Chen Ning.Residual deformation characteristics of coarse-grained soil under cyclic loading[J].China Civil Engineering Journal, 2000,33(3):48-53.(in Chinese)
[6] 王林玉.交通荷载作用下道面和软土共同作用的数值分析[D].杭州:浙江大学土木系,1999.

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备注/Memo

备注/Memo:
作者简介: 刘松玉(1963—),男,博士,教授,博士生导师,liusy@seu.edu.cn.
更新日期/Last Update: 2005-03-20