| 青藏高原多年冻土区斜坡段路基粉质粘土的试验研究 |
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| 引用本文： | 马立峰,刘建坤,牛富俊.青藏高原多年冻土区斜坡段路基粉质粘土的试验研究[J].工程勘察,2011(12):1-5,16. |
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| 作者姓名： | 马立峰 刘建坤 牛富俊 |
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| 作者单位： | 宁夏公路建设管理局;北京交通大学土木工程学院;中科院寒区旱区环境与工程研究所冻土工程国家重点实验室; |
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| 基金项目： | 国家科技支撑计划(2006BAC07B02); 国家自然科学基金青年基金(41001036) |
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| 摘 要： | 多年冻土区斜坡段路基由于受到环境、冻土条件、地貌特点及工程条件的影响,其稳定性对线路的安全运营存在潜在的危害,本文通过现场实地调研,选取典型斜坡路基断面并进行现场取样,针对试验段典型土样,开展了室内静三轴及振动三轴压缩试验研究。试验结果表明,冻土强度随温度的降低而线性增大,随含水量的增大而降低,而围压变化（0.5～2M...
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| 关 键 词： | 青藏高原 多年冻土 斜坡 冻土强度 动弹性模量 |
Experimental study on strength and dynamic elastic modulus of frozen silty clay of slope section in permafrost regions of Qinghai-Tibet plateau |
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| Ma Lifeng,Liu Jiankun,Niu Fujun.Experimental study on strength and dynamic elastic modulus of frozen silty clay of slope section in permafrost regions of Qinghai-Tibet plateau[J].Geotechnical Investigation & Surveying,2011(12):1-5,16. |
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| Authors: | Ma Lifeng Liu Jiankun Niu Fujun |
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| Affiliation: | Ma Lifeng1,Liu Jiankun2,Niu Fujun 3(1.Ningxia Highway Construction Administration,Yinchuan 750002,China,2.School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing 100044,3.State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental and Engineering Research Institute,CAS,Lanzhou 730000,China) |
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| Abstract: | The complicated geological conditions and environment temperature in permafrost regions,in particular,the permafrost and seasonal frozen soil are the key issues to the engineering construction and the stability.The strength and the dynamic elastic modulus of the frozen soil of the slope section in permafrost regions of Qinghai-Tibet Railway are studied,and the field soil samples are mainly consisted of silty clay and gravel.The results of the experimental study on the silty clay show that the strength of th... |
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| Keywords: | Qinghai-Tibet plateau permafrost slope strength of frozen soil dynamic elastic modulus |
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