西藏波密米堆沟泥石流堵河模型试验
文献类型：期刊论文
| 作者 | 程尊兰 ; 游勇
|
| 刊名 | 山地学报
 |
| 出版日期 | 2005 |
| 卷号 | 23期号:3页码:288-293 |
| 关键词 | 泥石流 堵溃 模型试验 |
| 其他题名 | Modeling Experiment of Debris Flow in Midui Gully, Tibet |
| 通讯作者 | 游勇 |
| 合作状况 | 其它 |
| 中文摘要 | 通过室内模型试验，对西藏波密米堆沟不同类型、不同规模的泥石流与主河不同频率洪水遭遇情况下，泥石流堵塞主河及溃决可能性，泥石流、洪水的危害模式进行了研究。米堆沟泥石流堵河模型试验结果表明。不同类型、规模泥石流进入主河与不同规模洪水遭遇。在交汇口表现出不同的堵溃特征；频率P=5％，重度12．74kN／H13，试验流量4．50l／S的水石流在主河仅暂时阻水。不会对主河产生堵塞和溃决；频率P：2％。重度14．70kN／m^3，模型流量8．01l／S稀性泥石流会部份阻塞主河道，瞬间完全阻塞及溃决现象不会出现；频率P=1％，重度16．66kN／ml，模型流量10．21l／S泥石流，对主河造成较为严重阻塞，但不会造成瞬间完全堵塞和溃决。 |
| 英文摘要 | Midui Gully Basin is located in 29b23c18d~ 29b32c10dN, 96b27c45d~ 96b35c05dE1Catchment basin is 11715 km2, the maximum alt itude of catchment basin is 6 595 m, and the gully mouth. s alt itude is 3 595, the mean slope of main gully is 6319 j1There is a large morainal lake in the catch basin , and the maximum length of morainal lake is 950 m, the max imum w idth of morainal lake is 55 m, the maximum depth of morainal lakeis 3110 m1 And the volume of lake w ater is 614 @ 106 m31On 1988- 07- 15, the morainal lake break, and damage lots of economic loss1 The g eomet ry scale model test is 1B100, the velocity scale is 1B10, and the discharge scale is 1B100 000, the t ime scale is 1B10, the grain size scale is 1B10 and the size dist ribut ion is 1B11 T he w hole experimental system make up of four parts , including main river supporting system , debris flow support ing system, the reg ion of model test , catchment pool of wasted w ater1 U nder dif ferent f requency flood circumstances, w e analyze the probability that debris flow block up main river and break in dif ferent ty pe and dif ferent scale debris f low condit ions and simulate the damage type of debris flow and flood to road1 We have required the following experiment results : the conf luence show s the different characteristics in different type and different scale debris f low conditions; when the flood f requency is 5 % , density is 12174 kN/ m3, and the discharge of model test is 415 l/ s, as the debris flow run into main river, parts of solid matter w ill temporarily block up the confluence , but can. t fill up main river and break; w hen the flood frequency is 2 % , density is 14170 kN/ m3, and the discharge of model test is 8101 l/ s, as the non-v iscous debris flow run into main river , parts of solid matter w ill block up the confluence, but can. t fill up the whole main river and break1 With the main w ater level rise, mainst ream had to t ransfer to rig ht bank1w hen the flood f requency is 1 %, density is 16166 kN/ m 3 , and the discharge of model test is 10121 l/ s, as the v iscous debris flow run into main river, solid matter w ill severely f ill up the conf luence, during the viscous debris flow run into main river, the main riverbed continuously f ill up and rise, and the mainstream had to passing from right bank of main river, but can. t block up the w hole main river and break1 The result s of model tests provide a theoretical foundat ion for a rat ional eng ineering program1 The conclusion is of significant reference value for the disaster prevent ion of the g ullies along Sichuan-T ibet highw ay w hich are similar to Midui gully. |
| 分类号 | P642.23 |
| 资助信息 | 国家自然科学基金资助项目(40371016);交通部西部交通建设科技项目(200131879257)。~~ |
| 语种 | 中文 |
| 公开日期 | 2010-07-15 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/720]  |
| 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 | 程尊兰,游勇. 西藏波密米堆沟泥石流堵河模型试验[J]. 山地学报,2005,23(3):288-293. |
| APA | 程尊兰,&游勇.(2005).西藏波密米堆沟泥石流堵河模型试验.山地学报,23(3),288-293. |
| MLA | 程尊兰,et al."西藏波密米堆沟泥石流堵河模型试验".山地学报 23.3(2005):288-293. |
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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