ISWC OpenIR  > 水保所知识产出(1956---)
王森1,2; 戎玉博3; 谢永生1,3; 骆汉1,3; 王海燕4; 赵暄3,5
Source Publication水土保持学报

        为室内试验中更好地模拟工程堆积体,利用图像分析法和经典统计学方法对六大典型水蚀区的368座工程堆积体中粒径D>1 cm的坡面砾石的分布和含量进行概化分析,得到工程堆积体下垫面上中下坡位砾石含量的概化区间。结果表明:工程堆积体坡面各粒径砾石含量大多服从正态分布,且山区和平原丘陵区之间的砾石总含量有显著性差异。工程堆积体坡面砾石重力分选作用明显,且随着砾石粒径的增加,分选程度增大。在室内进行工程堆积体下垫面设计时,山区堆积体的砾石总含量宜设置在50%~60%之间,其中,细粒砾石含量宜设置在20%~30%之间,中粒砾石含量宜设置在10%~15%之间,粗粒砾石和巨粒砾石含量宜设置为10%,堆积体上中下坡位坡面砾石含量配比宜设置为1∶1.3∶1.5;平原丘陵区的砾石总含量宜设置在15%~20%之间,其中细粒砾石、中粒砾石、粗粒砾石、巨粒砾石含量分别宜设置在5%~10%、3%~7%、2%~5%、2%~3%之间,堆积体上中下坡位坡面砾石含量配比宜设置为1∶1.5∶2.5。

Other Abstract

        In order to simulating underlying surface of engineering accumulation, using image analysis and classical statistics methods to generalize the distribution and content of the gravel whose diameter are greater than 1 cm on 368 engineering accumulation slopes which are located in six water erosion region. We can get the generalized content interval of gravel which distributed on different slope position. The results show as follows: Most gravel of different particle diameter obey normal distribution and there is a significant different in the content of gravel in mountain areas or in plain-hilly areas. The gravels’gravity separation effects are obvious, and the bigger the gravel is, the more remarkable the effects are. In mountain areas, it's appropriate to set the total amount of gravel at the percent between 50% to 60% when we design the spoil underlying surface for laboratory rainfall simulation; the content of fine gravel, medium grained gravel, coarse grained gravel and macrosome gravel are set to the range of 20% to 30%, 10% to 15%, 10% and 10%; the content of gravel on top, middle and bottom slope of engineering accumulation are suggested to be 1:1.3:1.5. In hilly and plain areas, it's appropriate to set the total amount of gravel at the percent between 15% to 20%, while the fine gravel, medium grained gravel, coarse grained gravel, macrosome gravel accounting for 5%~10%, 3%~7%, 2%~5%, 2%~3% respectively. The proportion of gravel on top, middle and bottom slope of engineering accumulation is best set at 1:1.5:2.5.

Keyword工程堆积体 砾石 含量与分布 概化
Subject Area农学
Indexed ByCSCD
Publication Place陕西 杨陵
Funding Organization国家自然科学基金项目(41601300);西部青年学者B类(XAB2015B06);西北农林科技大学基本科研业务费(2452016107) ; 国家自然科学基金项目(41601300);西部青年学者B类(XAB2015B06);西北农林科技大学基本科研业务费(2452016107)
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Document Type期刊论文
Corresponding Author谢永生
First Author Affilication中国科学院水利部水土保持研究所
Corresponding Author Affilication中国科学院水利部水土保持研究所
Recommended Citation
GB/T 7714
王森,戎玉博,谢永生,等. 工程堆积体坡面砾石分布及含量概化[J]. 水土保持学报,2017,31(5):108-113+119.
APA 王森,戎玉博,谢永生,骆汉,王海燕,&赵暄.(2017).工程堆积体坡面砾石分布及含量概化.水土保持学报,31(5),108-113+119.
MLA 王森,et al."工程堆积体坡面砾石分布及含量概化".水土保持学报 31.5(2017):108-113+119.
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