Top Soil Texture, Physical and Mechanical Property of the Hulunbuir Sandy Grassland, Inner Mongolia, China
Received date: 2014-04-13
Revised date: 2014-06-22
Online published: 2015-07-20
Research into topsoil texture, physical and mechanical properties within the depth of thirteen centimeters has been carried out based on field survey and laboratory tests on bearing capacity and shear deformation analysis in the sandy grassland of Hulunbuir, Inner Mongolia. It is discovered that the topsoil could be named fine sand, with poor grain size distribution, and layered structure. Soil dry density is between 1.34 g·cm-3 and 1.51 g·cm-3, soil cohesive forces between 12 kPa and 27.4 kPa, soil internal friction angle falls between 22.5° and 24°, and soil modulus of deformation is 8.5 MPa. It was discovered that the soil engineering property of the lower bed is better. Top soil characteristic value of bearing capacity was 150 kPa, and its ultimate bearing capacity was 300 kPa. Punching shear destruction (The plastic damage) and General shear failure(Brittle failure)is usual as soil carrying capacity is weak.
Yin Ling , Zhang A. MunkhDalai , Cheng Yonghui , Jin Lining , Zhao Jiaming , Barisi , Hai Jun , Qi Xiaoyan , Qu Jianxin . Top Soil Texture, Physical and Mechanical Property of the Hulunbuir Sandy Grassland, Inner Mongolia, China[J]. Journal of Desert Research, 2015 , 35(4) : 930 -936 . DOI: 10.7522/j.issn.1000-694X.2014.00083
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