GRADATION

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相关机构：复旦大学江苏沿江高速公路有限公司江苏省高速公路建设指挥部南京航空航天大学更多>>
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Experimental investigation on debris flow resistance and entrainment characteristics:effects of the erodible bed with discontinuous grading
《Journal of Mountain Science》2022年第8期2397-2419,共23页LI Pu WANG Jia-ding HU Kai-heng QIU Hai-jun XIE Jia-lin 
funded by the National Natural Science Foundation of China(Grant No.41801002);the National Key Foundation for Exploring Scientific Instrument Program(Grant No.42027806);the Natural Science Foundation of Shanxi Province(Grant No.2021JQ-452);the Second Tibetan Plateau Scientific Expedition and Research Program(STEP)(Grant No.2019QZKK0902);the National Key Research and Development Plan(Grant No.2018YFC1504703)。
Debris flow deposits in natural channels typically have a wide grain size distribution(GSD).The effects of bed sediment GSD on the basal entrainment rate are neglected in current debris flow erosion models.Field inves...
关键词：Debris flow Resistance force Entrainment characteristic Discontinuous gradation Roundness Entrainment model 
Mass-front velocity of dry granular flows influenced by the angle of the slope to the runout plane and particle size gradation被引量：18
《Journal of Mountain Science》2016年第2期234-245,共12页FAN Xiao-yi TIAN Shu-jun ZHANG You-yi 
supported by the National Natural Science Foundation of China (Grant Nos.41272297,41401195);the Applied Basic Research Fund of the Science and Technology Department of Sichuan Province (2014JY0121);the Key Research Fund of the Education Department of Sichuan Province (14ZA0095)
The mass-front velocities of granular flows results from the joint action of particle size gradations and the underlying surfaces.However,because of the complexity of friction during flow movement,details such as the ...
关键词：Granular flow Angle of slope Runout plane Particle size gradation Mass-front velocity Energy-profile 
Integrated Indicators-based Gradation of Cultivated Land Quality in Mountainous Region of Southwestern China被引量：4
《Journal of Mountain Science》2006年第3期259-270,共12页SHAO Jing＇an WEI Chaofu XIE Deti ZHOU Yan 
The gradation of cultivated land is to assess the suitability of cultivated land for agricultural production in terms of natural and economic properties of land. It can be used to evaluate sustainability of land use a...
关键词：Integrated indicator cultivated land GRADATION mountainous region China 
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