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| 兰州马兰黄土的物理力学特性 | |
| 引用本文： | 李保雄,牛永红,苗天德.兰州马兰黄土的物理力学特性[J].岩土力学,2007,28(6):1077-1082. |
| 作者姓名： | 李保雄 牛永红 苗天德 |
| 作者单位： | 1. 兰州大学,土木工程与力学学院,兰州,730000;甘肃省地震局,兰州地震工程研究院,兰州,730000 2. 中国科学院寒区旱区环境与工程研究所,兰州,730000 3. 兰州大学,土木工程与力学学院,兰州,730000 |
| 基金项目： | 科技部攻关项目;甘肃省科研项目 |
| 摘 要： | 马兰黄土属水敏感性地质体，在水软化作用下，土体的物理力学与水理性质呈现出明显的规律性。采用不同的原位及室内试验方法，分别在兰州和荷兰尤怀特两地对兰州地区马兰黄土的工程地质性质进行了测试，系统研究了马兰黄土的物理力学特性。在大量黄土试验资料的基础上，对马兰黄土的工程地质特征进行了系统研究，重点论述了马兰黄土水敏感性和抗剪强度的变化规律，提出了马兰黄土的多项临界指标参数。 |
| 关 键 词： | 马兰黄土 试验 物理力学性质 湿陷 界限含水率 抗剪强度 |
| 文章编号： | 1000-7598-（2007）06-1077-06 |
| 收稿时间： | 2005-12-11 |
| 修稿时间： | 2005-12-11 |
Physico-mechanical characteristics of Malan loess in Lanzhou region |
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| LI Bao-xiong,NIU Yong-hong,MIAO Tian-de.Physico-mechanical characteristics of Malan loess in Lanzhou region[J].Rock and Soil Mechanics,2007,28(6):1077-1082. | |
| Authors: | LI Bao-xiong NIU Yong-hong MIAO Tian-de |
| Institution: | 1. College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China; 2. Seismological Engineering Academy of Lanzhou, Seismological Bureau of Gansu Province, Lanzhou 730000, China; 3. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
| Abstract: | Malan loess is a special water content sensitive geological deposit, of which the physico-mechanical and hydraulic properties change with obvious patterns under the softening action of water, Based on the test data of a large number of Malan loess carried out in Utrecht University of Netherlands and Lanzhou city of Gansu Province with different methods; here, we study the physico-mechanical properties of Malan loess. According to the results of loess tests in laboratory and in-situ, the geotechnical properties, some laws of water sensitivity and shear strength properties of Malan loess are discussed emphatically; and some important critical indices of Malan loess are put forward. |
| Keywords: | Malan loess tests physico-mechanical properties collapse critical moisture content shear strength characteristics |
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