| 试析小流域土力类粘性泥石流的汇流过程——以滇东北大凹子沟为例 |
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| 引用本文： | 陈宁生,韩文喜,何杰,鄢和琳.试析小流域土力类粘性泥石流的汇流过程——以滇东北大凹子沟为例[J].山地学报,2001,19(5):418-424. |
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| 作者姓名： | 陈宁生 韩文喜 何杰 鄢和琳 |
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| 作者单位： | 1. 中国科学院-水利部成都山地灾害与环境研究所,
2. 成都理工学院, |
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| 基金项目： | 国家青年基金(49801002)、云南省青年墓金(98D022Q)资助. |
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| 摘 要： | 在分析土力类泥石流的产流特征和规律，尤其是土源与水源关系的基础上，将水文学上常用的等流时线法的基本原理应用于小流域土力类粘性泥石流的汇流计算。在具体的计算中，以滇东北蒋家沟的一支沟－大凹子沟1994－06－16的泥石流为例进行泥石流汇流流量过程的试算。计算的结果应用观测的一些数值及现象和弯道超高的最大流量计算值检验，结果表明此计算大体可以定量地反映该流域流量的过程。通过此汇流计算还可以了解阵性泥石流与连续泥石流的产生关系和机理，也可以了解降雨时段与产流时段及汇流过程时段的差别。该研究的结果也存在主客观的局限性，这一局限性反映了进一步探讨流域的产流量规律、流域等流时区划分的规律、大流域汇流计算和泥石流的波坦化规律的必然性。
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| 关 键 词： | 土力类 粘性泥石流 汇流 产流特征 土源 等流时线法 降雨 |
| 文章编号： | 1008-2786(2001)05-0418-07 |
| 修稿时间： | 2001年2月21日 |
The Research on Gravity Viscous Debris Flow Confluence in Small Basin -Take Dawazi Gully in North-west of Yumman as Example |
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| CHEN Ning_sheng ,HAN Wen_xi ,HE jieM and YAN He lin.The Research on Gravity Viscous Debris Flow Confluence in Small Basin -Take Dawazi Gully in North-west of Yumman as Example[J].Journal of Mountain Research,2001,19(5):418-424. |
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| Authors: | CHEN Ning_sheng HAN Wen_xi HE jieM and YAN He lin |
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| Institution: | CHEN Ning_sheng 1,HAN Wen_xi 2,HE jieM 2 and YAN He lin |
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| Abstract: | The equivalent flow duration contours is used to calculate and analyze the gravity viscous debris flow confluence in small basin. This application is based on realizing the initiating principles of debris flow, specially the relationship between earth and water resources. The raining process data on June 16, 1994 in Dawazi gully is used to calculate debris flow confluence process. The calculation results are checked by both direct observation data and later measurement one, which are derived from different exceed heights between curve way banks. At the end it shows that the calculation results nearly appear to be consists with the real process. From the calculation and analyzing above the relation between continuous flow and fit flow and the mechanics of both debris flow are understood partly. The results also show that the process difference among the duration of raining, flow initiation and confluence. As the limitation on this paper, it is necessary to research the confluence of large debris flow basin, the flat process of debris flow in channel movement and the usual laws of viscous debris flow in small basin. |
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| Keywords: | gravity viscous debris flow confluence |
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