|Alternative Title||Microstructure of Loess in Heifangtai and Its Indication of the Landslide Cause
|Place of Conferral||兰州
|Other Abstract||This article took the sections of Jiaojia region and back-edge of Huangci landslide which located in north and south of eastern Heitai respectively as the research objects, through the means of looking up data, field investigation and kinds of indoor tests, studied the change rules of the physical and mechanical properties, microstructure of soils on the profiles. The results are as followed:
(1) Named the different types of soils on the profiles in detail. The water content of red clay was about 3 times of loess and silty soil, and its specific surface area was about 2 times of loess, in addition, its permeability coefficient just was about loess’s 1/11~1/9 times.
(2) In-depth studied the change rules of soil microstructure by SEM, then explain the reasons why the cut export often occurs between the eolian loess and the clay layer.
(3) Through the characteristics of soil microstructure, element composition and particle size composition, etc., discussed the climate change when the soil deposition process and its engineering geological significance.
(4) Discussed the forming process of landslide slip surface and the weak belt of two kinds of landslides.|
樊成意. 黑方台黄土的微观结构及对滑坡成因的指示[D]. 兰州. 兰州大学,2013.
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