|
|
|
| Analysis of Subgrade Stability Considering Ground Water Level Fluctuations |
| DENG Rui |
| China Railway Eryuan Engineering Group Co. Ltd，Chengdu，Sichuan 610031，China |
|
|
|
|
Abstract Research purposes:The engineering property is affected due to seasonal water level fluctuations in seasonal rainfall area，how to analyse and judge the subgrade stability is very important in the surroundings. Taking railway in Nigeria as example，this paper analyzes the subgrade stability in complete weathering granite ( granite-gneiss ) stratum under the condition，in order to provide some technical reference.
Research conclusions(1)The ground water level changes greatly along the railway.(2)The complete weathering granite ( granite-gneiss ) stratum has fine physic-mechanical properties along the railway，but the bearing capacity in local area with high content of Montmorillonite or mica reduces due to ground water level rising.(3)The rising water level has little effect on the deep cutting ( within 15 m)，but in short time the height of subgrade fill is restricted to the groundwater level depth. (4)The analysis results in this paper provides some reference for railway subgrade building in the similar surroundings.
|
|
Received: 19 October 2013
|
|
|
|
|
|
[1]刘翠荣.地下水位变化对边坡稳定的影响[J]。铁道建 筑，2005(9):79-81.
Liu Cuirong. The Effect of Slope Stability Considering Ground Water Level Fluctuations[J].Railway Engineering , 2005 ( 9 ) : 79-81.
[2]金艳丽，戴福初.地下水位上升下黄土斜坡稳定性分析 [J].工程地质学报，2007(5):599-606.
Jin Yank，Dai Fuchu. Analysis of Loess Slope Stability Due to Groundwater Rise[J] .Journal of Engineering Geology , 2007 (5) : 599-606.
[3]张卢明，何敏，郑明新，等.降雨人渗对滑坡渗流场和稳 定性的影响分析[J].铁道工程学报，2009(7):15-19.
Zhang Luming , He Min , Zheng Mingxin , etc. Effects Analysis of Rainfall Infiltration on the Landslide Seepage Wield and Stability[J].Journal of Railway Engineering Society , 2009 (7):15-19.
[4]赵炼恒，罗强，李亮，等.地下水位变化对边坡稳定性影响 的上限分析[J].公路交通科技，2010(7):1-7.
Zhao Lianheng, Luo Qiang, Li Liang, etc. Analysis of Upper Bound of Slope Stability Considering Ground Water Level Fluctuations[J].Journal of Highway and Transportation Research and Development, 2010(7): 1-7.
[5]张军，王静梅，刘龙武.云母含量对风化花岗岩路基土工 程性质影响的试验研究[J].岩土工程技术，2004 ( 1 ) 40-42.
Zhang Jun , Wang Jingmei , Liu Longwu. Study on Effect of Mica Content to the Engineering Characteristics of Weathered Granite Subgrade Soil[J].Geotechnical Engineering Technique,2004(1):40-42.
[6]汤连生，张鹏程，刘增贤，等土体饱和度确定的两个问 题[J].水文地质工程地质，2002(5):1-3.
Tang Liansheng , Zhang Pengcheng , Liu Zengxian , etc. Discussion on Degree of Saturation Determination of Soils [ J ].Hydrogeology and Engineering Geology,2002 (5) :1-3.
[7]姚欲春.海东线花岗岩全风化层沉降计算参数试验研究 [J].高速铁路技术，2011(6):48-52
Yao Yuchun. Experimental Study on Calculation Parameter of Settlement for Completely Weathered Granite Foundation of Hainan Eastern Passenger Dedicated Line[J].High Speed Railway Technology， 2011(6):48-52.
[8]工程地质手册编委会.工程地质手册(第四版)[M].北 京:中国建筑工业出版社，2008.
Editorial Committee of Engineering Geology Manual. Engineering Geology Manual(Fourth Edition )[M]. Beijing : China Architecture and Building Press , 2008.
[9]高大钊，袁聚云.土质学与土力学(第三版)[M].北京: 人民交通出版社，2001
Gao Dazhao , Yuan Juyun. Soil Mechanics and Soil Science(Third Edition)[M].Beijing: China Communications Press , 2001.
|
|
|
|
2014, Vol. 31 
