中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
梳子坝切口深度对淤砂形态影响的试验研究

文献类型:期刊论文

作者欧国强
刊名水土保持研究
出版日期2005
卷号12期号:6页码:235-237+241
关键词梳子坝 淤砂形态 切口深度
其他题名Experimental Study on Configuration of Intercepted Sediment by Comb Dam
通讯作者韩文兵
合作状况其它
中文摘要通过室内水槽试验,探讨梳子坝切口深度对淤砂形态的影响等,初步分析得到以下几点结论:(1)在全闭塞状态下,坝址附近淤砂高度大致等于坝高,并不受切口深度的影响;在部分闭塞状态下,坝址附近淤砂高度受切口深度的影响非常明显,并有随切口深度的增大而降低的趋势;在不闭塞状态下,坝址附近淤砂高度等于切口深度,是坝前泥砂淤砂的基准点。(2)切口深度影响淤砂长度,随着切口深度的降低,淤砂长度有逐渐减小的趋势。(3)在淤砂形态上,三种切口闭塞状态下都有一个共同的特征:在淤砂区的尾部,有一个陡坡,但陡坡的起点有随切口深度的减小而逐渐后退的趋势。(4)在淤砂形态上,部分闭塞和不闭塞两种状态下还有一个共同的特征:在淤砂区的前端,都有一个缓坡。但部分闭塞时缓坡坡顶(淤砂肩)位置大致相近;但不闭塞时缓坡坡顶(淤砂肩)的位置有随切口深度的减小而变得距离坝址更近的趋势。
英文摘要By flume ex perim ents indoo rs, a ser ies o f model ex periment which to resear ch co nfigur atio n of inter cept ed sediment
by differ ent slit depth of comb dam w as discussed. Results a s follow s. ( 1) Under tota l blo cking circumstance , t he heig ht of
inter cepted sediment is almo st equal to the heig ht of comb dam near fo reside of dam body, a nd is ir r elev ant to slit depth; effect
of slit dept h is ver y obvious near fo reside o f dam bo dy in par t blocking conditio ns, w ith slit depth incr easing , the heig ht of
inter cepted sediment will g radually decr ease; under slit opening cir cum st ance, the height of inter cept ed sedim ent near fo reside
of dam body is almost equal t o the height of comb dam . ( 2) Slit depth affects the leng th o f intercepted sediment w it h slit depth
gr adua lly incr easing . Lengt h o f inter cepted sediment w ill g r adually sho rten. ( 3) There is also a commo n char acter istics on
config uration of inter cepted in thr ee differ ent blo cking fo rms. It has a steep slope at t ail o f intercepted sediment. With slit
depth decreasing , climax point of steep slope become far ther. ( 4) Ther e is a commo n character istic on config uration in par t
blo cking and slit o pening conditio ns, it is t ha t there is a flat slo pe near for eside of dam body. But climax point of flat slope is
similar to differ ent slit depth in part blo cking co nditio n and it is become far ther with slit depth g r adually decreasing in slit
opening co ndit ion.
分类号TV149
资助信息云南省自然科学基金“梳子型切口坝拦砂性能实验研究”(2004D0054M);中国科学院知识创新工程重要方向项目“南水北调西线工程山地灾害防治技术及环境影响研究”(KZCX3-SW-323)
语种中文
公开日期2010-07-12
源URL[http://ir.imde.ac.cn/handle/131551/544]  
专题成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前)
成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
推荐引用方式
GB/T 7714
欧国强. 梳子坝切口深度对淤砂形态影响的试验研究[J]. 水土保持研究,2005,12(6):235-237+241.
APA 欧国强.(2005).梳子坝切口深度对淤砂形态影响的试验研究.水土保持研究,12(6),235-237+241.
MLA 欧国强."梳子坝切口深度对淤砂形态影响的试验研究".水土保持研究 12.6(2005):235-237+241.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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