季节冻土区黄土路基水分与温度变化规律研究

doi:10.7522/j.issn.1000-0240.2014.0122

冰川冻土 ›› 2014, Vol. 36 ›› Issue (4): 1011-1016.doi: 10.7522/j.issn.1000-0240.2014.0122

• 冻土水文效应及水利工程抗冻技术 • 上一篇下一篇

季节冻土区黄土路基水分与温度变化规律研究

毛云程^1,2, 李国玉¹, 张青龙^1,2, 张坤^1,2, 穆彦虎¹

1. 中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室, 甘肃兰州 730000;
2. 甘肃省交通科学研究院有限公司, 甘肃兰州 730050

收稿日期:2014-03-11 修回日期:2014-06-24 发布日期:2014-08-23
作者简介:毛云程（1982-），男，甘肃张掖人，2006年在长沙理工大学获硕士学位，现主要从事黄土及寒区旱区公路工程研究.E-mail：mycbug1982@163.com
基金资助:
交通运输部西部交通建设科技项目（200831800025）；甘肃省科技重大专项计划项目（143GKDA007）；冻土工程国家重点实验室青年基金项目（SKLFSE-ZQ-20）；冻土工程国家重点实验室开放基金项目（SKLFSE201107）；中国科学院“西部之光”重点项目资助

Research on the moisture and temperature variation of loess roadbed in seasonally frozen ground regions

MAO Yuncheng^1,2, LI Guoyu¹, ZHANG Qinglong^1,2, ZHANG Kun^1,2, MU Yanhu¹

1. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
2. Gansu Provincial Transportation Research Institute Co., Ltd., Lanzhou 730050, China

Received:2014-03-11 Revised:2014-06-24 Published:2014-08-23

摘要/Abstract

摘要： 为研究季节冻土区压实黄土路基变形的影响因素，通过现场监测得到路基水分场与温度场的变化规律，并结合室内试验与数值模拟分析路基变形规律. 结果表明，天然地面以上路堤土体具有明显的季节性，水分场及温度场变化剧烈，而天然地面以下土体温度场及水分场变化较平缓，季节性不强. 路堤最大冻深约1 m，经历强烈的冻融循环和干湿交替过程，含水率变化量为5%~29%. 冻融循环作用在路肩处产生的变形较大，而干湿循环作用在路基中心处产生的变形较大，且后者引起的变形大于前者.

关键词: 季节冻土区, 冻融循环, 干湿循环, 黄土路基

Abstract: In order to resolving the issue of compacted loess roadbed deformation in seasonally frozen ground regions, the variations of temperature and moisture of subgrade were studied on the base of in-situ monitoring. And then, the principal factors of roadbed deformation were analyzed in combination of laboratory test data and numerical simulation. It is found that temperature and moisture have a significant seasonal variation, which performs greatly within the embankment above the original ground surface, and not obvious under the original ground surface. The maximum frost depth in the embankment is about 1 m, along with strong freezing-thawing and dry-wet alternations. Water content varies between 5% and 29%. The deformation caused by freezing-thawing cycles on shoulder is larger than that in the middle of roadbed. However, the settlement due to dry-wet cycles is smaller in shoulder. The deformation due to dry-wet cycles is larger than that due to freezing-thawing cycles.

Key words: seasonally frozen ground regions, freezing-thawing cycles, dry-wet cycles, loess subgrade

中图分类号:

U416.1

毛云程, 李国玉, 张青龙, 张坤, 穆彦虎. 季节冻土区黄土路基水分与温度变化规律研究[J]. 冰川冻土, 2014, 36(4): 1011-1016.

MAO Yuncheng, LI Guoyu, ZHANG Qinglong, ZHANG Kun, MU Yanhu. Research on the moisture and temperature variation of loess roadbed in seasonally frozen ground regions[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2014, 36(4): 1011-1016.

参考文献

[1] Yang Youhai, Su Zaichao, Xia Qiong. Mechanism and application of short reinforcement under superficial layers of loess embankment slope[J]. China Civil Engineering Journal, 2005, 38(11): 84-88. [杨有海, 苏在朝, 夏琼. 黄土路堤边坡浅层加筋加固机理分析及工程应用[J]. 土木工程学报, 2005, 38(11): 84-88.]
[2] Zhang You'an, Wang Yujin. Frost resistance design for subgrade and pavement of mountain highway in margin region of Qinghai-Tibet Plateau[J]. Journal of Glaciology and Geocryology, 2012, 34(3): 645-649. [张有安, 王玉金. 青藏高原边缘山区公路路基、路面抗冻设计研究[J]. 冰川冻土, 2012, 34(3): 645-649.]
[3] Qi J, Vermeer P A, Cheng G. A review of the influence of freeze-thaw cycles on soil geotechnical properties[J]. Permafrost and Periglacial Process, 2006, 17: 245-252.
[4] Wang Quan, Ma Wei, Zhang Ze, et al. Research on the secondary collapse properties of loess under freeze-thaw cycle[J]. Journal of Glaciology and Geocryology, 2013, 35(2): 376-382. [王泉, 马巍, 张泽, 等. 冻融循环对黄土二次湿陷特性的影响研究[J]. 冰川冻土, 2013, 35(2): 376-382.]
[5] Dong Xiaohong, Zhang Aijun, Lian Jiangbo, et al. Laboratory study on shear strength deterioration of loess with long-term freezing-thawing cycles[J]. Journal of Engineering Geology, 2010, 18(6): 887-893. [董晓宏, 张爱军, 连江波, 等. 长期冻融循环引起黄土强度劣化的试验研究[J]. 工程地质学报, 2010, 18(6): 887-893.]
[6] Bing Hui, He Ping. Influence of freeze-thaw cycles on physical and mechanical properties of salty soil[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(12): 1958-1962. [邴慧, 何平. 冻融循环对含盐土物理力学性质影响的试验研究[J]. 岩土工程学报, 2009, 31(12): 1958-1962.]
[7] Zhang Shimin, Li Shuangyang. Experimental study of the Tibetan silty clay under freeze-thaw cycles[J]. Journal of Glaciology and Geocryology, 2012, 34(3): 625-631. [张世民, 李双洋. 青藏粉质黏土冻融循环试验研究[J]. 冰川冻土, 2012, 34(3): 625-631.]
[8] Fang Lili, Qi Jilin, Ma Wei. Freeze-thaw induced changes in soil structure and its relationship with variations in strength[J]. Journal of Glaciology and Geocryology, 2012, 34(2): 435-440. [方丽莉, 齐吉琳, 马巍. 冻融作用对土结构性的影响及其导致的强度变化[J]. 冰川冻土, 2012, 34(2): 435-440.]
[9] Li Guoyu, Ma Wei, Li Ning, et al. Experimental research on impact of freezing and thawing on geotechnical properties of compacted loess[J]. Journal of Water Resources and Architectural Engineering, 2010, 8(4): 5-7. [李国玉, 马巍, 李宁, 等. 冻融作用对压实黄土工程地质特性影响的试验研究[J]. 水利与建筑工程学报, 2010, 8(4): 5-7.]
[10] Li Guoyu, Ma Wei, Mu Yanhu, et al. Process and mechanism of impact of freezing and thawing cycle on collapse deformation of compacted loess[J]. China Journal of Highway and Transport, 2011, 24(5): 1-5. [李国玉, 马巍, 穆彦虎, 等. 冻融循环对压实黄土湿陷变形影响的过程和机制[J]. 中国公路学报, 2011, 24(5): 1-5.]
[11] Mu Yanhu, Ma Wei, Li Guoyu, et al. Quantitative analysis of impacts of freeze-thaw cycles upon microstructure of compacted loess[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(12): 1919-1925. [穆彦虎, 马巍, 李国玉, 等. 冻融作用对压实黄土结构影响的微观定量研究[J]. 岩土工程学报, 2011, 33(12): 1919-1925.]
[12] Mao Xuesong, Yang Jinfeng, Zhang Zhengbo, et al. Experimental study of integrated temperature-moisture-load effect on subgrade during freeze-thaw cycle[J]. Journal of Glaciology and Geocryology, 2012, 34(2): 427-434. [毛雪松, 杨锦凤, 张正波, 等. 温度-湿度-荷载综合作用下路基冻融过程试验研究[J]. 冰川冻土, 2012, 34(2): 427-434.]
[13] Yao Xiaoliang, Qi Jilin, Song Chunxia. Influence of freeze-thaw on engineering properties of Qingzang clay[J]. Journal of Glaciology and Geocryology, 2008, 30(1): 165-169. [姚晓亮, 齐吉琳, 宋春霞. 冻融作用对青藏粘土工程性质的影响[J]. 冰川冻土, 2008, 30(1): 165-169.]
[14] Liu Hongtai, Zhang Aijun, Duan Tao, et al. The influence of alternate dry-wet on the strength and permeability of remolded loess[J]. Hydro-Science and Engineering, 2010(4): 38-42. [刘宏泰, 张爱军, 段涛, 等. 干湿循环对重塑黄土强度和渗透性的影响[J]. 水利水运工程学报, 2010(4): 38-42.]
[15] Zhao Tianyu, Wang Jinfang. Soil-water characteristic curve for unsaturated loess soil considering density and wetting-drying cycle effects[J]. Journal of Central South University (Science and Technology), 2012, 43(6): 2445-2453. [赵天宇, 王锦芳. 考虑密度与干湿循环影响的黄土土水特征曲线[J]. 中南大学学报(自然科学版), 2012, 43(6): 2445-2453.]

季节冻土区黄土路基水分与温度变化规律研究

Research on the moisture and temperature variation of loess roadbed in seasonally frozen ground regions

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