Abstract：Research purposes: The spallation disease of loss cuttings lope threatens the safe ty of railway and destroys the ecological environment.Acoording to the survey data of the slope of Taiyuan-Zhongwei-Y inchuan Railway.The distribution features and characteristics of the spallation of the loess slope are studied.The spallation styles are sorted to find the debelopment regularlity of spallation and preliminarily explane the formation mechanism of the spallation for the purposes of laying foundation for treating the spallation disease of the loess slope and providing the basis for the prevention of slope disease.
Research conclusions :The spallation styles of the loess slope along the Taiyuan-Zhongwei-Yinchuan Railway can be dibidided into sheet-shape spallation layer-shape spallation broken soil-shape spallation chunk-shape spallation and surface crusting spa;;ation.The slope spallations along the railway appear certain regularity of distribution.Generally speaking the slope spallation occurs in the middle and low parts of slope.The bigger the ratio of slope is except the limited ratio of slope,the more easily the spallation occurs. In addition, the spallation relates to the windward and heliotropism.
Ye Wanjun,Yamg Gemgshe,Guo Xishan,Style of Spalling Hazard in Loess Slope and Its Develop Characteristic[J].Journal of Xi’an University of Science and Technology, 2010(1):52 -57.
Guo Liping,Ye Wanjun,Fang Peng,etc.Mechanism of Spalling Hazard in Loess Slope,Induced by Excavation Distabance[J].Journal of Xi’an University of Science and Technology, 2010(4):462 -465.
Wang Ninanqin,Luo Donghai,Yao Yong.Research on the Defomation Failure Mechanism and Stability of High Loess Slope along Raiway[J].Journal of Railway Engineer Society. 2009(7):10 -14.
2011, Vol. 28 
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