季节冻土区高速铁路路堑段路基稳定性试验研究

Abstract
Figure/Table
References (18)
Related Citation (15)

Download: PDF (4224 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Harbin—Dalian passenger dedicated line crosses piedmont plain in the Northeast China，where is seasonal frozen ground region. As a 10 km cutting section of the line located in shallow groundwater area，frost heave is a serious problem in the roadbed construction. Based on monitoring results of hydrothermal conditions of the testing section near the Changchun west railway station，the hydrothermal processes in the roadbeds and their influences on the frost heave are analyzed；and the roadbed deformation before the operation of the railway is evaluated. The results indicated that，under the conditions of current design and construction，the subgrade is thermally stable，and the total deformation of the roadbed is less than 7 mm，while which of the upper layer occupied more than 60%. The frost heave value is negatively correlated with the ground temperature and reduces gradually with the frozen depth. The geomembrane barrier laid in the subgrade prevents the external moisture migrating into the roadbed，resulting in the relatively stable water content of the roadbed soils，thereby reducing the formation of segregation ice. The time-space distribution feature of the ground temperature is related to roadbed position and the surface structure. The ground temperature contour shows a slight elevation trend under the track panels and reinforced concrete base，as they increases the thermal resistance of the roadbed. The ground temperature slightly decreases under the traditional ballast layers of the contact lines along the two sides of the main line，caused by the cooling mechanism of the ballast layer. The frozen depth under the middle gutter is higher than that under the gutters at the two sides，due to the different engineering components used in construction of the gutters. The summarized results show that the testing roadbed has good performance of thermo-dynamic stability during monitoring period.

Key words： subgrade engineering seasonal frozen ground high-speed railway ground temperature frost heave thermal stability

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	NIU Fujun1
	2
	LIU Hua1
	3
	NIU Yonghong1
	LIN Zhanju1
	LU Jiahao1
	3
	LUO Jing1
	3

Cite this article:

NIU Fujun1,2,LIU Hua1, et al. EXPERIMENTAL STUDY OF ROADBED STABILITY IN CUTTING SECTION ALONG A HIGH-SPEED RAILWAY IN SEASONAL FROZEN REGIONS[J]. , 2013, 32(s2): 4032-4040.

URL:

https://rockmech.whrsm.ac.cn/EN/Y2013/V32/Is2/4032

[1] WILLIAMS P J，SMIT H M W. The frozen earth[M]. Cambidge：Cambridge University Press，1989：306.

[2] 徐敩祖，王家澄，张立新. 冻土物理学[M]. 北京：科学出版社，2001：1–2.(XU Xiaozu，WANG Jiacheng，ZHANG Lixin. Physics of frozen soils[M]. Beijing：Science Press，2001：1–2.(in Chinese))

[3] 田亚护，温立光，刘建坤. 季节冻土区铁路路基变形监测及冻害原因分析[J]. 铁道建筑，2010，(7)：104–107.(TIAN Yahu，WEN Liguang，LIU Jiankun. Monitoring of roadbed deformation of railway and freezing hazard analysis in seasonal frozen ground[J]. Railway Engineering，2010，(7)：104–107.(in Chinese))

[4] 于琳琳，徐学燕. 季节冻土区铁路边坡冻融破坏分析[J]. 低温建筑技术，2009，31(4)：81–82.(YU Linlin，XU Xueyan. Analysis of freezing-thawing damages on embankment slopes of railway in seasonal frozen ground[J]. Low Temperature Architecture Technology，2009，31(4)：81–82.(in Chinese))

[5] 谷宪明. 季冻区道路冻胀翻浆机制及防治研究[博士学位论文][D]. 长春：吉林大学，2007.(GU Xianming. Study on mechanism and prevention of frost heaving and frost boiling in seasonally frozen road [Ph. D. Thesis][D]. Changchun：Jilin University，2007.(in Chinese))

[6] 马巍，程国栋，吴青柏. 多年冻土地区主动冷却地基方法研究[J]. 冰川冻土，2002，24(5)：579–587.(MA Wei，CHENG Guodong，WU Qingbai. Preliminary study on technology of cooling foundation in permafrost Regions[J]. Journal of Glaciology and Geocryology，2002，24(5)：579–587.(in Chinese))

[7] 程国栋. 用冷却路基的方法修建青藏铁路[J]. 中国铁道科学，2003，24(3)：1–4.(CHENG Guodong. Construction of Qinghai—Tibet railway with cooled roadbed[J]. China Railway Science，2003，24(3)：1–4.(in Chinese))

[8] 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.(CHENG Guodong，SUN Zhizhong，NIU Fujun. Application of roadbed cooling methods to the Qinghai—Tibet railway construction[J]. Journal of Glaciology and Geocryology，2006，28(6)：797–808.(in Chinese))

[9] DAI H M，WANG X L. Frost heave susceptibility of highway subgrade soils in seasonal frost regions[J]. Cold Regions Science and Technology，1992，20(2)：141–146.

[10] 叶阳升，王仲锦，程爱君，等. 路基的填料冻胀分类及防冻层设置[J]. 中国铁道科学，2007，28(1)：1–7.(YE Yangsheng，WANG Zhongjin，CHENG Aijun，et al. Frost heave classification of railway subgrade filling material and design of anti-freezing layer[J]. China Railway Science，2007，28(1)：1–7.(in Chinese))

[11] 叶阳升. 论铁路路基填料分类[J]. 中国铁道科学，2004，25(2)：35–41.(YE Yangsheng. Railway filling material classification[J]. China Railway Science，2004，25(2)，35–41.(in Chinese))

[12] 朱强，付思宁，武福学，等. 论季节冻土的冻胀沿冻深分布[J]. 冰川冻土，1988，10(1)：1–7.(ZHU Qiang，FU Sining，WU Fuxue，et al. On the frost heave distribution along depth[J]. Journal of Glaciology and Geocryology，1988，10(1)：1–7.(in Chinese))

[13] 霍凯成，黄继业，罗国荣. 路基冻胀机制及冻害防范整治措施探讨[J]. 岩石力学与工程学报，2002，21(7)：1 099–1 103.(HUO Kaicheng，HUANG Jiye，LUO Guorong. On mechanism of freezing-heave and its treatment in roadbeds[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(7)：1 099–1 103.(in Chinese))

[14] 宋珲. 季节性冻土地区路基稳定性的数值分析[硕士学位论文][D]. 成都：西南交通大学，2004.(SONG Hui. Numerical simulation of stability of subgrade on seasonal frozen region[M. S. Thesis][D]. Chengdu：Southwest Jiaotong University，2004.(in Chinese))

[15] 许健，牛富俊，李爱敏，等. 季节冻土区保温法抑制铁路路基冻胀效果研究[J]. 铁道学报，2010，32(6)：124–131.(XU Jian，NIU Fujun，LI Aimin，et al. Analysis of the prevention effect of thermal-insulation method on frost heave of railway subgrade in seasonal frozen regions[J]. Journal of the China Railway Society，2010，32(6)：124–131.(in Chinese))

[16] 许健，牛富俊，牛永红，等. 季节冻土区防冻胀护道对保温路基地温特征影响效果研究[J]. 铁道学报，2011，33(3)：84–90.(XU Jian，NIU Fujun，NIU Yonghong，et al. Study on the temperature field of insulated roadbed with frost-resistant berm on seasonal frozen region[J]. Journal of the China Railway Society，2011，33(3)：84–90. (in Chinese))

[17] 许健，牛富俊，牛永红，等. 换填法抑制季节冻土区铁路路基冻胀效果分析[J]. 中国铁道科学，2011，32(5)：1–7.(XU Jian，NIU Fujun，NIU Yonghong，et al. Analysis of the effect of replacing-soil method on inhibiting frost heave of railway roadbed in seasonal frozen soil region[J]. China Railway Science，2011，32(5)：1–7.(in Chinese))

[18] 刘华，牛富俊，牛永红，等. 季节性冻土区高速铁路路基填料及防冻层设置研究[J]. 岩石力学与工程学报，2011，30(12)：2 549–2 557.(LIU Hua，NIU Fujun，NIU Yonghong，et al. Study of design of filling material and setting anti-frost layer for high-speed railway roadbed in seasonal frozen regions[J]. Chinese Journal of Rock Mechanics and Engineering，2002，30(12)：2 549–2 557.(in Chinese))