|
|
|
| DISCUSSION ON QUANTITATIVE PARAMETERS OF
LOESS STRUCTURE |
| TIAN Kanliang1，2，MA Jun3，LI Yonghong1，2 |
| (1. Institute of Soil and Water Conservation，Northwest Agriculture and Forestry University，Yangling，Shaanxi 712100，China；2. Institute of Soil and Water Conservation，Chinese Academy of Sciences and Ministry of Water Resources，Yangling，Shaanxi 712100，China；3. West to East Gas Pipeline Corporation of CNPC，Shanghai 200122，China) |
|
|
|
|
Abstract The structure of loess is determined by the link structural strength and friction structural strength between loess particles. To quantitatively describe loess structure is to quantitatively study the variation laws of link structural strength and friction structural strength of loess. Therefore，some new and reasonable structural parameters of the structural loess are suggested for different loading states，such as the loess structural parameters based on the deformation conditions(i.e. link structural deformation potential parameter mp1，friction structural deformation potential parameter mp2 and structural deformation potential parameter mp)，the loess static structural parameters based on the strength conditions(i.e. link structural static strength potential parameter mε1，friction structural static strength potential parameter mε2 and structural static strength potential parameter mε) and the loess dynamic structural parameters based on the strength conditions(i.e. link structural dynamic strength potential parameter mγd1，friction structural dynamic strength potential parameter mγd2 and structural dynamic strength potential parameter mγd). Moreover，the rationality，stability and wide applicability of the proposed structural parameters are discussed.
|
|
Received: 19 March 2010
|
|
|
|
| [1] 吴 侃，郑颖人. 黄土结构性研究[C]// 中国土木工程学会第六届学术会议论文集. 上海：同济大学出版社，1991：93–96.(WU Kan，ZHENG Yingren. Study on loess structure[C]// Proceedings of the 6th Conference of China Civil Engineering. Shanghai：Tongji University Press，1991：93–96.(in Chinese))
[2] 张伯平，袁海智，王 力. 含水量对黄土结构强度影响的定量分析[J]. 西北农业大学学报：自然科学版，1994，22(1)：52–60.(ZHANG Boping，YUAN Haizhi，WANG Li. The quantitative analysis of effects of soil moisture upon the loess structure strength[J]. Journal of Northwest Sci-Tech University of Agriculture and Forestry：Natural Science，1994，22(1)：52–60.(in Chinese))
[3] 田堪良，张慧莉，骆亚生，等. 黄土的结构强度及其定量分析方法[C]// 中国岩石力学与工程学会第七次学术大会论文集. 北京：中国科学技术出版社，2002：178–180.(TIAN Kanliang，ZHANG HuiLi，Luo Yasheng，et al. The structural strength of loess and its quantitative analysis method[C]// Proceedings of the 7th Academic Conference，Chinese Society of Rock Mechanics and Engineering. Beijing：China Science and Technology Press，2002：178–180.(in Chinese))
[4] 沈珠江. 土体结构性的数学模型——21世纪土力学的核心问题[J]. 岩土工程学报，1996，18(1)：95–97.(SHEN Zhujiang. Soil structural mathematical model—the core issue of soil mechanics in the 21st century[J]. Journal of Geotechnical Engineering，1996，18(1)：95–97.(in Chinese))
[5] CASAGRANDE A. The structure of clay and its importance in foundation engineering[J]. Boston Society Civil Engineers Journal，1932，19(4)：168–209.
[6] LAMBE T W. The structure of compacted clay[J]. Journal of Soil Mechanics and Foundations Division，ASCE，1958，84(2)：1–35.
[7] YONG R N，SHEERAN D E. Fabric unit interaction and soil behavior[C]// Proceedings of the International Symposium on Soil Structure. Gotheubmg，Sweden：[s. n.]，1973：176–183.
[8] 高国瑞. 黄土湿陷结构分类与湿陷性[J]. 中国科学：C辑，1980，(12)：1–9.(GAO Guorui. Classification of collapsibility structure and collapsibility of loess[J]. Science in China：Series C，1980，(12)：1–9.(in Chinese))
[9] 高国瑞. 中国黄土的微结构[J]. 科学通报，1980，(20)：945–948.(GAO Guorui. Chinese loess microstructure[J]. Chinese Science Bulletin，1980，(20)：945–948.(in Chinese))
[10] 高国瑞. 黄土显微结构分类与湿陷性[J]. 中国科学：C辑，1980，(12)：1 203–1 208.(GAO Guorui. Classification of microstructure and collapsibility of loess[J]. Science in China：Series C，1980，(12)：1 203– 1 208.(in Chinese))
[11] 苗天德，王正贵. 考虑微结构失稳的湿陷性和黄土变形机制[J]. 中国科学：B辑，1990，(1)：86–89.(MIAO Tiande，WANG Zhenggui. Collapsibility and deformation mechanism of loess considering microstructure instability[J]. Science in China：Series B，1990，(1)：86–89.(in Chinese))
[12] 王兰民，邓 津，黄 媛. 黄土震陷性的微观结构量化分析[J]. 岩石力学与工程学报，2007，26(增1)：3 025–3 031.(WANG Lanmin，DENG Jin，HUANG Yuan. Quantitative analysis of microstructure of loess seismic subsidence[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.1)：3 025–3 031.(in Chinese))
[13] 陈正汉，方祥位，朱元青，等. 膨胀土和黄土的细观结构及其演化规律研究[J]. 岩土力学，2009，30(1)：1–11.(CHEN Zhenghan，FANG Xiangwei，ZHU Yuanqing，et al. Research on mesostructures and their evolution laws of expansive soil and loess[J]. Rock and Soil Mechanics，2009，30(1)：1–11.(in Chinese))
[14] 谢定义，齐吉琳，张振中. 考虑土结构性的本构关系[J]. 土木工程学报，2000，33(4)：35–41.(XIE Dingyi，QI Jilin，ZHANG Zhenzhong. Constitutive relationship considering soil structure[J]. Chinese Journal of Civil Engineering，2000，33(4)：35–41.(in Chinese))
[15] 谢定义，齐吉琳，朱元林. 土的结构性参数及其与变形、强度的关系[J]. 水利学报，1999，(10)：1–6.(XIE Dingyi，QI Jilin，ZHU Yuanlin. The parameter of soil structure and its relations to deformation and strength of soil[J]. Journal of Hydraulic Engineering，1999，(10)：1–6.(in Chinese))
[16] 谢定义，齐吉琳. 土结构性及其定量化参数研究的新途径[J]. 岩土工程学报，1999，21(6)：651–656.(XIE Dingyi，QI Jilin. New path of research on soil structure and its quantitative parameter[J]. Chinese Journal of Geotechnical Engineering，1999，21(6)：651–656.(in Chinese))
[17] 邵生俊，周飞飞，龙吉勇. 原状黄土结构性及其定量化参数研究[J]. 岩土工程学报，2004，26(4)：531–536.(SHAO Shengjun，ZHOU Feifei，LONG Jiyong. Structural properties of loess and its quantitative parameter[J]. Chinese Journal of Geotechnical Engineering，2004，26(4)：531–536.(in Chinese))
[18] 邵生俊，龙吉勇，于清高，等. 湿陷性黄土的结构性参数本构模型[J]. 水利学报，2006，37(11)：1 315–1 322.(SHAO Shengjun，LONG Jiyong，YU Qinggao，et al. A constitutive model of collapsible loess with structural parameter[J]. Journal of Hydraulic Engineering，2006，37(11)：1 315–1 322.(in Chinese))
[19] 骆亚生，谢定义，邵生俊，等. 复杂应力状态下的土结构性参数[J]. 岩石力学与工程学报，2004，23(24)：4 248–4 251.(LUO Yasheng，XIE Dingyi，SHAO Shengjun，et al. Structural parameter of soil under complex stress conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(24)：4 248–4 251.(in Chinese))
[20] 骆亚生，谢定义. 复杂应力条件下土的结构性本构关系[J]. 四川大学学报：工程科学版，2005，37(5)：14–18.(LUO Yasheng，XIE Dingyi. Structural constitutive relation of soils under complex stress conditions[J]. Journal of Sichuan University：Engineering Science，2005，37(5)：14–18.(in Chinese))
[21] 田堪良. 黄土的结构性及其结构性本构关系研究[博士学位论文][D]. 南京：河海大学，2009.(TIAN Kanliang. Study on soil structural and structural constitutive relation of loess[Ph. D. Thesis][D]. Nanjing：Hohai University，2009.(in Chinese)) |
|
|
|
2011, Vol. 30 
