|Table of Contents|

Road performance test of plate-like saline soil in extremely arid regions(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年01期
Page:
31-35
Research Field:
Publishing date:
2011-02-28

Info

Title:
Road performance test of plate-like saline soil in extremely arid regions
Author(s):
WU Yan-ling1; 2;  FENG Zhong-ju1;  WANG Ting-wu3;  LIU Xiao-fei4
1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China;
2. Chifeng Administration of Highway, Chifeng 024000, Inner Mongolia, China;
3. Communications Department of Xinjiang Uygur Autonomous Region Government, Urumqi 830000, Xinjiang, China;
4. Guangdong Highway Design Institute Co Ltd, Guangzhou 510507, Guangdong, China
Keywords:
road engineering;  subgrade;  plate-like saline soil;  road performance;  strength characteristic
PACS:
U416.1; TU448
DOI:
-
Abstract:
In order to solve the engineer application problems of the plate-like saline soil of Hongshankou—Shanshan freeway in Xinjiang, this paper studies the road performance of the plate-like saline soil, based on the permeability test, unconfined compression strength test, CBR test and bearing test. The result shows that the value of plate-like saline soil's natural strength ranges widely from 2.8 to 28.6 Pa, conditioned by the uneven distribution of salinity, different grad-ation and size effects of soil sample and other factors. The CBR value is 120% and much greater than the one of non-plate-like saline soil, which is 28.6% and much less than the design deflection. This data indicates that the plate-like saline soil can be used as the subgrade if the immersion of water can be control properly. Permeability tests' results give the salt-in depth are 80 cm and 50 m respectively about coarse-grained soil and fine-grained soil, combined with the surrounding environment in Xinjiang weather conditions and rain capacity along with Hongshankou—Shanshan freeway. 7 tabs, 7 figs, 9 refs.

References:

[1] 冯忠居,乌延玲,成 超,等.板块状盐渍土盐溶和盐胀特性研究[J].岩土工程学报,2010,32(9):1439-1442. FENG Zhong-ju,WU Yan-ling,CHENG Chao,et al.Salt-dissolution and salt-heaving characteristics of platelike saline soil[J].Chinese Journal of Geotechnical Engineering,2010,32(9):1439-1442.
[2]冯忠居,李维洲,王廷武,等. 新疆板块状盐渍土工程特性[J].交通运输工程学报,2010,10(6):1-6. FENG Zhong-ju,LI Wei-zhou,WANG Ting-wu,et al.Engineering properties of plate-like saline soil in Xinjiang[J].Journal of Traffic and Transportation Engineering,2010,10(6):1-6.
[3]高江平,吴家惠.硫酸盐渍土盐胀特性的单因素影响规律研究[J].岩土工程学报,1997,19(1):37-42. GAO Jiang-ping,WU Jia-hui.Study on laws of the single factor effect upon heaving properties of the supplanted salty soil[J].Chinese Journal of Geotechnical Engineering,1997,19(1):37-42.
[4]包卫星,杨晓华,谢永利,等.典型天然盐渍土多次冻融循环盐胀试验研究[J].岩土工程学报,2006,28(11):1991-1995. BAO Wei-xing,YANG Xiao-hua,XIE Yong-li,et al.Research on salt expansion of representative crude saline soil under freezing and thawing cycles[J].Chinese Journal of Geotechnical Engineering,2006,28(11):1991-1995.
[5]黄立度,席元伟,李俊超.硫酸盐渍土道路盐胀病害的基本特征及防治[J].中国公路学报,1997,10(2):39-47. HUANG Li-du,XI Yuan-wei,LI Jun-chao.The feature and prevention of the highway salt dilating distress in the vitriol salinized soil area[J].China Journal of Highway and Transport,1997,10(2):39-47.
[6]王小生,章洪庆,薛 明,等.盐渍土地区道路病害与防治[J].同济大学学报,2003,31(10):1798-1782. WANG Xiao-sheng,ZHANG Hong-qing,XUE Ming,et al.Road disease and treatment in saline soil area[J].Journal of Tongji University,2003,31(10):1798-1782.
[7]Newman G P,Wilson G W.Heat and mass transfer in unsaturated soils during freezing[J].Canadian Geotechnical Journal,1997,34(1):25-29.
[8]包卫星,李志农.喀什地区不同盐渍土冻融变形特性试验[J].长安大学学报:自然科学版,2008,28(3):26-30. BAO Wei-xing,LI Zhi-nong.Testing on transmutation properties of saline soil under freezing and thawing cycles in Kashi,Xinjiang[J].Journal of Chang'an University:Natural Science Edition,2008,28(3):26-30.
[9]张莎莎,杨晓华,谢永利,等.路用粗粒盐渍土盐胀特性[J].长安大学学报:自然科学版,2009,29(1):20-25. ZHANG Sha-sha,YANG Xiao-hua,XIE Yong-li,et al.Salt-expansion laws of coarse-grained salty soil in road subgrade[J].Journal of Chang'an University:Natural Science Edition,2009,29(1):20-25.

Memo

Memo:
-
Last Update: 2011-02-28