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2. Key Laboratory of Neotectonic Movement and Geohazard, Ministry of Land and Resources, Beijing 100081, China;
3. Institute of Geotechnical Engineering, Xi'an University of Technology, Xi'an 710048, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=F24qHOrSbl878kDdoiaxuQ==, pdfFileSize=1137902, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1242134689377498026, articleId=1242134686491816849, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=磐安结构性黄土的构度及动强度衰减特性, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=以磐安黄土为样本,基于无侧限单轴抗压试验得到的磐安黄土构度指标,分析了原状黄土与重塑黄土的结构性差异;通过动三轴试验,对原状黄土、重塑黄土在天然含水率、饱和含水率条件下的动强度衰减特性进行了对比研究。结果表明,天然含水率的原状黄土及重塑黄土均具有较强的结构性,原状黄土的结构性更强,其动强度明显高于重塑黄土的动强度;虽然饱和过程使得原状黄土的动强度大大降低,但饱和原状黄土的动强度仍高于饱和重塑黄土的动强度,且饱和原状黄土的动孔压增长趋势明显慢于饱和重塑黄土;具有较强结构性的黄土,其动强度曲线不会出现归一化。, authors=孙萍1,2 , 李荣建3 , 刘军定3 , 张媛3 , 张帅1,2 , authorsList=孙萍, 李荣建, 刘军定, 张媛, 张帅, authorCompany=1. 中国地质科学院地质力学研究所, 北京 100081;
2. 国土资源部新构造运动与地质灾害重点实验室, 北京 100081;
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科技导报
| 研究论文 2016, 34(5): 74-78
磐安结构性黄土的构度及动强度衰减特性
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孙萍1,2 , 李荣建3 , 刘军定3 , 张媛3 , 张帅1,2
作者信息
1. 中国地质科学院地质力学研究所, 北京 100081;
2. 国土资源部新构造运动与地质灾害重点实验室, 北京 100081;
3. 西安理工大学岩土工程研究所, 西安 710048
通讯作者:
李荣建(通信作者),教授,研究方向为黄土力学、岩土工程抗震及边坡工程,电子信箱:lirongjian@xaut.edu.cn
Structural index and dynamic strength attenuation characteristics of structural loess in Pan'an
Affiliations
出版时间: 2016-03-13
doi: 10.3981/j.issn.1000-7857.2016.05.008
文章导航
以磐安黄土为样本,基于无侧限单轴抗压试验得到的磐安黄土构度指标,分析了原状黄土与重塑黄土的结构性差异;通过动三轴试验,对原状黄土、重塑黄土在天然含水率、饱和含水率条件下的动强度衰减特性进行了对比研究。结果表明,天然含水率的原状黄土及重塑黄土均具有较强的结构性,原状黄土的结构性更强,其动强度明显高于重塑黄土的动强度;虽然饱和过程使得原状黄土的动强度大大降低,但饱和原状黄土的动强度仍高于饱和重塑黄土的动强度,且饱和原状黄土的动孔压增长趋势明显慢于饱和重塑黄土;具有较强结构性的黄土,其动强度曲线不会出现归一化。
黄土
/
结构性
/
构度
/
动强度
/
动孔压
Based on the unconfined uniaxial compression tests of Pan'an loess, the structure index and the structure variations between the intact loess and the remolded loess are analyzed. Then, by means of dynamic triaxial tests, the comparison is performed for dynamic strength attenuation characteristics between natural intact loess, remolded loess, saturated intact loess and saturated remolded loess. Results show the followings. Owing to the structure of loess, the dynamic strength of natural intact loess with stronger structure is obviously higher than that of remodeled loess; though the saturation process makes the dynamic strength of intact loess reduced greatly, the dynamic strength of saturated intact loess is still higher than that of the saturated remodeled loess, and the dynamic pore pressure of saturated intact loess grows significantly slower than that of the saturated remodeled loess. In addition, the dynamic strength curves of loess with stronger structure will not be normalized.
loess
/
structure
/
structural index
/
dynamic strength
/
dynamic pore pressure
孙萍, 李荣建, 刘军定, 张媛, 张帅.
磐安结构性黄土的构度及动强度衰减特性.
科技导报,
2016
, 34
(5)
: 74
-78
.
DOI: 10.3981/j.issn.1000-7857.2016.05.008
SUN Ping, LI Rongjian, LIU Junding, ZHANG Yuan, ZHANG Shuai.
Structural index and dynamic strength attenuation characteristics of structural loess in Pan'an[J].
Science & Technology Review ,
2016
, 34
(5)
: 74
-78
.
DOI: 10.3981/j.issn.1000-7857.2016.05.008
2016年第34卷第5期
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引用本文
BibTeX
文章信息
doi: 10.3981/j.issn.1000-7857.2016.05.008
接收时间:2015-06-02
首发时间:2016-03-25
出版时间:2016-03-13
收稿日期:2015-06-02
修回日期:2015-11-10
通讯作者:
李荣建(通信作者),教授,研究方向为黄土力学、岩土工程抗震及边坡工程,电子信箱:lirongjian@xaut.edu.cn
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2016.05.008
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2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 Genus 种数 Number of species 占总种数比例 Percentage of total species (%) 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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