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| 基于强度条件的黄土结构性动力试验研究 | |
| 引用本文： | 田堪良,张慧莉.基于强度条件的黄土结构性动力试验研究[J].岩石力学与工程学报,2010,29(11):2356-2361. |
| 作者姓名： | 田堪良 张慧莉 |
| 作者单位： | (1. 西北农林科技大学 水土保持研究所，陕西 杨凌 712100；2. 中国科学院水利部 水土保持研究所，陕西 杨凌 712100； 3. 西北农林科技大学 水利与建筑工程学院，陕西 杨凌 712100) |
| 摘 要： | 土体结构是其强度、变形的内在的决定因素,黄土的结构性由黄土颗粒之间的联结结构强度和摩擦结构强度所决定,由此,提出基于强度条件的黄土动力结构性参数即联结结构动力强度势参数mγd1、摩擦结构动力强度势参数mγd2以及结构动力强度势参数mγd,并通过黄土的动扭剪试验研究黄土结构性及基于强度条件的黄土动力结构性参数的变化规律,揭示含水率、固结压力、动剪应变对黄土结构性的影响,并对所提出的基于强度条件的黄土动力结构性参数的合理性进行讨论。 |
| 关 键 词： | 土力学 黄土结构性 联结结构动力强度势参数 摩擦结构动力强度势参数 结构动力强度势参数 |
| 收稿时间： | 2010-04-26; |
DYNAMIC TEST STUDY OF LOESS STRUCTURAL PROPERTY BASED ON STRENGTH CONDITIONS |
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| TIAN Kanliang,ZHANG Huili.DYNAMIC TEST STUDY OF LOESS STRUCTURAL PROPERTY BASED ON STRENGTH CONDITIONS[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(11):2356-2361. | |
| Authors: | TIAN Kanliang ZHANG Huili |
| Affiliation: | (1. Institute of Soil and Water Conservation，Northwest A and F 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. College of Water Conservancy and Architectural Engineering，Northwest A and F University，Yangling，Shaanxi 712100，China) |
| Abstract: | Soil structure is the intrinsic determinant of its strength and deformation. The structural property of loess is determined by the link structural strength and the friction structural strength. On this basis，some new and reasonable structural parameters of loess are suggested based on soil dynamic strength，such as the link structural dynamic strength potential parameter mgd1，the friction structural dynamic strength potential parameter mgd2 and the structural dynamic strength potential parameter mgd. The variation laws of structural property and the structural parameters based on the dynamic strength conditions are studied with the dynamic torsional shear test of intact loess；and the impact of moisture content，consolidation pressure and dynamic shear strain on the structural property of loess are revealed. Finally，the rationality of these structural parameters based on the dynamic strength conditions is discussed. |
| Keywords: | soil mechanics loess structural property link structural dynamic strength potential parameter friction structural dynamic strength potential parameter structural dynamic strength potential parameter |
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