单切口坝对稀性泥石流的拦砂性能.pdfVIP

17 4 V o.l 17, No. 4 2008 8 JOURNA L OF NATURAL D ISA STER S A ug. , 2008 : 1004-4574 2008) 04- 0152- 07 ) ) ) 1, 2 1 韩文兵 , 欧国强 1. # , 6 1004 1; 2. , 100039) : , , : 1) 3 b dm ax b /dmax [ 0. 394 , ; b/ dm ax \ 1. 47 8 , ; 0. 394 b /dm ax 1. 478 , 2) , , b /d 0. 394 ~ 0. 739 , b /d m ax m ax , b /dm ax = 0. 7 39 , , b/ dm ax, ; 0. 493[ b /dm ax [ 0. 9 86, 3), , 1, : ; ; : P642 : A Sedim en t- in tercep ting effect of slit dam on non-viscous debris flow: experim en tal study and com parative analy sis 12 1 HAN W en-b ing , OU Guo-qiang 1. Chengdu Inst itu te of M ountain D isaster and Env ironm en t, Ch ineseA cad em y Of S cien ces and W ater C onservan cy M in is try, C hengdu 6 1004 1, Ch ina; 2. G raduated S chool of Ch in ese A cademy of Sciences, Beij ing 100039, Ch ina) Abs tract: T hrough a series of flum e expermi ent indoors, the sedmi ent- intercept ing effect o f slit dam on non-v iscou s debris flow w as exp lored and a com parative ana lysis w ith com b dam w as conducted. T he result show s that 1) there are three k inds o f b lock ing cond ition, i. e. w ho le b lock ing, partial blocking and no b lock ing, and the occurring k ind of blocking condit