人民黄河
人民黃河
인민황하
Yellow River
2014年
5期
79-80,101
,共3页
淤地坝%粗泥沙%颗粒级配分析%韭园沟流域%秃尾河流域
淤地壩%粗泥沙%顆粒級配分析%韭園溝流域%禿尾河流域
어지패%조니사%과립급배분석%구완구류역%독미하류역
warping dam%coarse sediment%analysis of sediment grain size distribution%Jiuyuangou watershed%Tuwei River watershed
淤地坝是韭园沟与秃尾河流域重要的水土保持工程之一,淤地坝所处流域和工程结构的不同,淤积物的粒径大小存在差异。通过钻孔取样法采集了韭园沟流域21座淤地坝和秃尾河流域36座淤地坝淤积物样品623个,根据样品的颗分结果,分析得出韭园沟流域淤地坝坝内粗泥沙粒径主要为0.05 mm,秃尾河流域淤地坝坝内粗泥沙粒径主要分布于0.05~0.10 mm之间,说明淤地坝能有效拦截流域内的粗泥沙;两流域淤地坝均呈现库尾泥沙粒径总体大于坝前,库尾泥沙粒径的大小取决于入库泥沙粒径的大小,入库泥沙粒径越大,淤地坝对其分选效果越明显。
淤地壩是韭園溝與禿尾河流域重要的水土保持工程之一,淤地壩所處流域和工程結構的不同,淤積物的粒徑大小存在差異。通過鑽孔取樣法採集瞭韭園溝流域21座淤地壩和禿尾河流域36座淤地壩淤積物樣品623箇,根據樣品的顆分結果,分析得齣韭園溝流域淤地壩壩內粗泥沙粒徑主要為0.05 mm,禿尾河流域淤地壩壩內粗泥沙粒徑主要分佈于0.05~0.10 mm之間,說明淤地壩能有效攔截流域內的粗泥沙;兩流域淤地壩均呈現庫尾泥沙粒徑總體大于壩前,庫尾泥沙粒徑的大小取決于入庫泥沙粒徑的大小,入庫泥沙粒徑越大,淤地壩對其分選效果越明顯。
어지패시구완구여독미하류역중요적수토보지공정지일,어지패소처류역화공정결구적불동,어적물적립경대소존재차이。통과찬공취양법채집료구완구류역21좌어지패화독미하류역36좌어지패어적물양품623개,근거양품적과분결과,분석득출구완구류역어지패패내조니사립경주요위0.05 mm,독미하류역어지패패내조니사립경주요분포우0.05~0.10 mm지간,설명어지패능유효란절류역내적조니사;량류역어지패균정현고미니사립경총체대우패전,고미니사립경적대소취결우입고니사립경적대소,입고니사립경월대,어지패대기분선효과월명현。
Warping dam is one of the important soil and water conservation projects in Jiuyuangou and Tuwei River watersheds. Because of the war-ping dam is different in watershed and engineering structure,the size of sediment in the dam is also different. Through drilling sampling method, it collected 623 samples in 21 warping dams in Jiuyuangou watershed and 36 warping dams in Tuwei River watershed. Analysis of sediment grain size distribution,the size of coarse sand in warping dams of Jiuyuangou watershed was 0. 05 mm,in warping dams of Tuwei River watershed was mainly 0. 05~0. 10 mm. The results show that the dam can effectively intercept the coarse sediment. The sand size of tail dam is larger than the front dam in the two watersheds. The sediment size of tail dam depends on the size of the sediment inflow the dam. The more coarse of the sedi-ments inflow the dam,the results of the separation effect are more obvious.