高温冻结砂土温度界限试验研究

doi:10.7522/j.issn.1000-0240.2018.0058

冰川冻土 ›› 2018, Vol. 40 ›› Issue (3): 539-545.doi: 10.7522/j.issn.1000-0240.2018.0058

高温冻结砂土温度界限试验研究

郭雪鸾¹, 齐吉琳¹, 党博翔¹, 董兆仁²

1. 北京建筑大学土木与交通工程学院, 北京 100044;
2. 山东省昌乐县高级技工学校, 山东潍坊 262400

收稿日期:2018-02-27 修回日期:2018-04-12 出版日期:2018-06-25 发布日期:2018-07-16
通讯作者: 齐吉琳,E-mail:jilinqi@bucea.edu.cn E-mail:jilinqi@bucea.edu.cn
作者简介:郭雪鸾(1993-),女,北京人,2016年在北京建筑大学获学士学位,现为北京建筑大学在读硕士研究生,从事岩土工程研究.E-mail:guoxueluan@163.com
基金资助:
国家自然基金面上项目（41572268）；北京市自然基金委-市教委联合重点项目（KZ201810016020）；北京市属高等学校高层次人才引进与培养计划项目（CIT&TCD20150101）资助

Experimental study on temperature threshold for warm frozen sand in terms of mechanical properties

GUO Xueluan¹, QI Jilin¹, DANG Boxiang¹, DONG Zhaoren²

1. School of Civil and Transportation Engineering, Beijing University of Architecture and Civil Engineering, Beijing 100044, China;
2. Changle Senior Technical School, Weifang 262400, Shandong, China

Received:2018-02-27 Revised:2018-04-12 Online:2018-06-25 Published:2018-07-16

摘要/Abstract

摘要： 由于高温冻土力学特性与融土相近，对其研究越来越多，然而迄今并没有一个广为接受的基于力学指标的明确定义。以冻结饱和标准砂为研究对象，利用三轴剪切试验和侧限压缩试验获得黏聚力、割线变形模量和压缩指数等力学指标，通过分析这些指标随温度变化的规律，试图从力学特性的角度对于高温冻结砂土给出一个明确的温度界限。研究发现，冻结砂土在-1.0℃到-0.5℃之间，黏聚力、割线变形模量和压缩指数等力学指标发生突变，因此，将-1.0℃定义为高温冻结砂土的温度界限，对涉及高温冻土的工程建设和维护具有重要的意义。

关键词: 高温冻土, 力学性质, 温度界限, 标准砂

Abstract: Mechanical properties of warm frozen soils are similar to that of unfrozen soils. Recently, the mechanical properties of warm frozen soils have been extensively studied, including strength criteria, compression feature and constitutive models. However, there is no definition of warm frozen soil according to the mechanical behavior of frozen soils so far. This paper attempts to define the temperature threshold for warm frozen sand in terms of mechanical properties. The Chinese ISO standard sand was taken as study object. Triaxial and confined compression tests were carried out. Mechanical properties such as, cohesion, modulus and compressibility index were obtained and their changing tendency along with temperature were analyzed. It is found that the range of -1.0℃ to -0.5℃ seems to be the temperature when the mechanical properties change abruptly. Therefore, -1.0℃ can be defined as the temperature threshold for warm frozen soils with regard to the material tested in this program. The research is of great significance to construct and maintain the engineering in warm frozen soils.

Key words: warm frozen soil, mechanical properties, temperature threshold, Chinese ISO standard sand

中图分类号:

P642.14

郭雪鸾, 齐吉琳, 党博翔, 董兆仁. 高温冻结砂土温度界限试验研究[J]. 冰川冻土, 2018, 40(3): 539-545.

GUO Xueluan, QI Jilin, DANG Boxiang, DONG Zhaoren. Experimental study on temperature threshold for warm frozen sand in terms of mechanical properties[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2018, 40(3): 539-545.

参考文献

[1] Li Shuxun, Cheng Guodong, Guo Dongxin. The future thermal regime of numerical simulating permafrost on Qinghai-Xizang (Tibet) Plateau, China, under climate warming[J]. Science in China:Series D Earth Sciences, 1996, 39(4):434-441.[李述训, 程国栋, 郭东信. 气候持续变暖条件下青藏高原多年冻土变化趋势数值模拟[J]. 中国科学:D辑地球科学, 1996, 26(4):342-347.]
[2] Ma Wei, Wang Dayan. Mechanics of frozen soil[M]. Beijing:Science Press, 2014.[马巍, 王大雁. 冻土力学[M]. 北京:科学出版社, 2014.]
[3] Ladanyi B. Creep Behavior of frozen and unfrozen soils:a comparison[C]//Cold Regions Engineering:Putting Research into Practice. ASCE, 1999:173-186.
[4] Zhu Yuanlin, Zhang Jiayi. Elastic and compressive deformation of frozen soils[J]. Journal of Glaciology and Geocryology, 1982, 4(3):29-40.[朱元林, 张家懿. 冻土的弹性变形及压缩变形[J]. 冰川冻土, 1982, 4(3):29-40.]
[5] Ma Xiaojie, Zhang Jianming, Chang Xiaoxiao, et al. Experimental research on strength of warm and ice-rich frozen clays[J]. Rock and Soil Mechanics, 2008, 29(9):2498-2502.[马小杰, 张建明, 常小晓, 等. 高温-高含冰量冻结黏土强度试验研究[J]. 岩土力学, 2008, 29(9):2498-2502.]
[6] Zheng Bo, Zhang Jianming, Ma Xiaojie, et al. Study on compression deformation of warm and ice-rich frozen soil[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(Supp 1):3064-3069.[郑波, 张建明, 马小杰, 等. 高温-高含冰量冻土压缩变形特性研究[J]. 岩石力学与工程学报, 2009, 28(增刊1):3064-3069.]
[7] Su Kai, Zhang Jianming, Liu Shiwei, et al. Compressibility of warm and ice-rich frozen soil[J]. Journal of Glaciology and Geocryology, 2013, 35(2):369-375.[苏凯, 张建明, 刘世伟, 等. 高温-高含冰量冻土压缩变形特性研究[J]. 冰川冻土, 2013, 35(2):369-375.]
[8] Ruan Guofeng, Zhang Jianming, Liu Shiwei, et al. Compression experimental research on warm and ice-rich permafrost on the Qinghai-Tibet Plateau[J]. Hydrogeology & Engineering Geology, 2014, 41(2):50-56.[阮国锋, 张建明, 刘世伟, 等. 青藏高原高温高含冰量冻土压缩试验研究[J]. 水文地质工程地质, 2014, 41(2):50-56.]
[9] Shields D H, Domaschuk L, Man C S, et al. The deformation properties of warm permafrost[C]//Strength testing of marine sediments:laboratory and in-situ measurements. Philadelphia, PA, USA:American Society for Testing and Materials, 1985:473-486.
[10] Foster M L, Washburn D S, Foote D S. OTH-Backscatter power plant foundation design for warm, ice-rich permafrost soils[C]//International arctic technology conference. Anchorage, AK, USA:Society of Petroleum Engineers, 1991:471-480.
[11] The First Survey and Design Institute of China Railway Construction Corporation. Temporary prescript for engineering surveying of permafrost in the Qing-Tibet Railway[S]. Lanzhou:The First Survey and Design Institute of China Railway Construction Corporation, 2001.[铁道第一勘察设计院. 青藏铁路多年冻土区工程勘察暂行规定[S]. 兰州:铁道第一勘察设计院, 2001.]
[12] Liu Yongzhi, Wu Qingbai, Zhang Jianming, et al. Field experimental study on temperature of highway subgrade in permafrost regions of Qinghai-Tibet Plateau[J]. Highway, 2000(2):5-8.[刘永智, 吴青柏, 张建明, 等. 高原多年冻土地区公路路基温度场现场实验研究[J]. 公路, 2000(2):5-8.]
[13] Tsytovich H A. Mechanics of frozen soil[M]. Zhang Changqing, Zhu Yuanlin, trans. Beijing:Science Press, 1985:11-13.[H.A.崔托维奇. 冻土力学[M]. 张长庆, 朱元林, 译. 北京:科学出版社, 1985:11-13.]
[14] Qi Jilin, Zhang Jianming. Definition of warm permafrost based on mechanical properties of frozen soil[C]//Proceedings of 9th international conference on permafrost. Fairbanks, Alaska:Institute of Northern Engineering University of Alaska Fairbanks, 2008:1457-1461.
[15] Ma Ling, Qi Jilin, Yu Fan, et al. Experimental study on variability in mechanical properties of a frozen sand[J]. Acta Geotechnica, 2016, 11(1):61-70.
[16] Ministry of Water Resources of the PRC. GB/T 50123-1999 standard for soil test method[S]. Beijing:China Planning Press, 1999.[中华人民共和国水利部. GB/T 50123-1999土工试验方法标准[S]. 北京:中国计划出版社, 1999.]
[17] Niu Yaqiang, Lai Yuanming, Wang Xu, et al. Experimental study on triaxial compressive strength and deformation behaviors of frozen silty clay[J]. Journal of Glaciology and Geocryology, 2016, 38(2):424-430.[牛亚强, 赖远明, 王旭, 等. 冻结粉质黏土三轴抗压强度和变形特性试验研究[J]. 冰川冻土, 2016, 38(2):424-430.]
[18] Wu Ziwang, Ma Wei. Strength and creep of frozen soil[M]. Lanzhou:Lanzhou University Press, 1994:5-8.[吴紫汪, 马巍. 冻土强度与蠕变[M]. 兰州:兰州大学出版社, 1994:5-8.]
[19] Chamberlain E, Groves C, Perham R. The mechanical behavior of frozen earth materials under high pressure triaxial test conditions[J]. Geotechnique, 1972, 22(3):469-483.
[20] Parameswaran V R, Jones S J. Triaxial testing of frozen sand[J]. Journal of Glaciology, 1981, 27(95):147-155.
[21] Ma Wei, Wu Ziwang, Chang Xiaoxiao, et al. Strength characteristics of frozen sandy soil under high confining pressure[J]. Journal of Glaciology and Geocryology, 1996, 18(3):268-272.[马巍, 吴紫汪, 常小晓, 等. 高围压下冻结砂土的强度特性[J]. 冰川冻土, 1996, 18(3):268-272.]

高温冻结砂土温度界限试验研究

Experimental study on temperature threshold for warm frozen sand in terms of mechanical properties

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 6

Metrics

本文评价

推荐阅读 0

[1]	刘世伟, 张建明. 高温冻土物理力学特性研究现状[J]. 冰川冻土, 2012, 34(1): 120-129.
[2]	王松鹤;齐吉琳. 排水和不排水条件下高温冻土松弛特性研究[J]. 冰川冻土, 2011, 33(4): 833-838.
[3]	李清泽;赖远明;徐湘田;杨玉贵;常小晓. 高温冻土三轴强度分布及损伤统计本构模型[J]. 冰川冻土, 2010, 32(6): 1234-1241.
[4]	赖远明, 李双洋, 高志华, 常小晓. 高温冻结粘土单轴随机损伤本构模型及强度分布规律[J]. 冰川冻土, 2007, 29(6): 969-976.
[5]	郝加前, 吉延峻, 何乃武, 魏智, 杨思忠, 何瑞霞, 金会军. 高温多年冻土区冻土地基预先融化技术研究现状及展望[J]. 冰川冻土, 2007, 29(4): 645-652.
[6]	程国栋, 孙志忠, 牛富俊. “冷却路基”方法在青藏铁路上的应用[J]. 冰川冻土, 2006, 28(6): 797-808.