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| Research on the Loess Disintegration Test along Shanxi Railway |
| CAI Yun - ting |
| (The Third Railway Survey and Design Institute Group Corporation，Tianjin 300142，China) |
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Abstract Abstract：Research purposes: Loess is widely distributed in Shanxi. The loess suffusion erosion increases the difficulty of railway construction. The disintegration of loess provides the material basis for suffusion erosion. In order to study the disintegration of loess，this paper made the disintegration test Sr in - situ samples such as the prism with different side length，cylinder and circular groove with different curvature， and analyzed the characteristic of loess， the loess disintegration rate and loess disintegration amount，which has important theoretical value and practical significance for characteristics research on loess engineering. Research conclusions:(1) The loess instantaneous disintegration rate generally experienced a process which from slow to fast to slow again，and disintegration mainly occurred in the early stage of the whole process. (2) The depth of water immersion，the size of the sample was positively correlated with the disintegration，while the vegetation growth，the number of edge of the specimen was inversely related to the disintegration. (3) This examination explains the process of the disintegration of the loess and the phenomenon of removing edge， which provides the experimental basis for the research on the suffusion erosion of the loess along the railway.
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Received: 31 December 2015
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2016, Vol. 33 
