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Partisan and Geographic Variation in Emotional Responses to COVID-19 Vaccination on Social Media.
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Research on the slope spectrum of the Loess Plateau
Science in China Series D: Earth Sciences, 2008A new concept dealing with digital analysis of loess terrain, slope spectrum, is presented and discussed in this paper, by introducing its characteristic, representation and extracting method from DEMs. Using 48 geomorphological units in different parts of the loess as test areas and 5 m-resolution DEMs as original test data, the quantitative depiction
Fayuan Li, Guoan Tang, Yi Long
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Slope spectrum variation in a simulated loess watershed
Frontiers of Earth Science, 2015A simulated loess watershed, where the loess material and relief properly represent the true loess surface, is adopted to investigate the variation in slope spectrum with loess watershed evolution. The evolution of the simulated loess watershed was driven by the exogenetic force of artificial rainfall.
Fayuan Li, Guoan Tang, Rui Zhu
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The Journal of Geology, 1968
MAXIMUM STABLE HEIGHTS OF STEEP, FRIABLE LOESS SLOPES OF WESTERN IOWA AND WESTERN TENNESSEE WERE FOUND TO RELATE TO THE SOIL DENSITY AND SHEAR STRENGTH IN ACCORD WITH THE SLIDING-WEDGE METHOD OF ANALYSIS. SHEAR STRENGTH WAS DETERMINED IN SITU WITH THE BOREHOLE SHEAR TEST, WHICH ALLOWS A RAPID FIELD DETERMINATION OF THE MOHR-COULOMB FAILURE ENVELOPE ...
R. A. Lohnes, R. L. Handy
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MAXIMUM STABLE HEIGHTS OF STEEP, FRIABLE LOESS SLOPES OF WESTERN IOWA AND WESTERN TENNESSEE WERE FOUND TO RELATE TO THE SOIL DENSITY AND SHEAR STRENGTH IN ACCORD WITH THE SLIDING-WEDGE METHOD OF ANALYSIS. SHEAR STRENGTH WAS DETERMINED IN SITU WITH THE BOREHOLE SHEAR TEST, WHICH ALLOWS A RAPID FIELD DETERMINATION OF THE MOHR-COULOMB FAILURE ENVELOPE ...
R. A. Lohnes, R. L. Handy
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Slope Stability of Loess Revisited
Transportation Research Record: Journal of the Transportation Research Board, 2002Guidelines to estimate the potential for slope instability and to give new insight into the slope evolution process in regions of deep to moderately deep loess were developed. Laboratory test data indicated a general trend of decreasing cohesion with increasing moisture content for each loess type.
Robert A. Lohnes, Bruce H. Kjartanson
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Treatment Materials for Spalling on Loess Slope
Advanced Materials Research, 2010Spalling on loess slope threats the safety of highway and destroys its ecological environment. This paper proposes treatment materials for medium thickness spalling on loess slope. This materials treat the spalling in loess slope by the Reinforced function of straw, Bonding effect of silt, retain soil moisture and insulation effect of straw silt ...
Wan Jun Ye +3 more
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Study on the Reinforce Model of Loess Slope
Applied Mechanics and Materials, 2013A pre-stressed lattice frame is an effective structure of reinforced slope. The purpose of this paper is concerned chiefly with the study of the internal force distribution and calculation methods of the pre-stressed anchor lattice frames, and analyzed calculation methods advantages and disadvantages.
Juan Juan Wang, Jun Tao Deng, Rui E. Li
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Study of the effects of clay content on loess slope failure mode and loess strength
Bulletin of Engineering Geology and the Environment, 2020The particle size of loess in the Loess Plateau varies from northwest to southeast due to wind direction which is predominantly from the northwest. The clay content of loess is significantly different in the loess area of China resulting in different physical characteristics of loess and loess failure process. To determine the failure process triggered
Jianqi Zhuang, Jianbing Peng, Yi Zhu
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Environmental Management, 2008
Runoff was measured from seven plots with different slopes nested in Tuanshangou catchment on the Loess Plateau to study effect of slopes on runoff in relation to rainfall regimes. Based on nine years of field observation and K-mean clusters, 84 rainfall events were grouped into three rainfall regimes.
H Y, Fang, Q G, Cai, H, Chen, Q Y, Li
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Runoff was measured from seven plots with different slopes nested in Tuanshangou catchment on the Loess Plateau to study effect of slopes on runoff in relation to rainfall regimes. Based on nine years of field observation and K-mean clusters, 84 rainfall events were grouped into three rainfall regimes.
H Y, Fang, Q G, Cai, H, Chen, Q Y, Li
openaire +2 more sources