Statistical and probabilistic analyses of impact pressure and discharge of debris flow from 139 events during 1961 and 2000 at Jiangjia Ravine, China
نویسندگان
چکیده
a College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China b Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Kowloon, HKSAR, China c State Key Laboratory of Water Resources and Hydropower Engineering Science, School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, China d Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain, Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
منابع مشابه
Closure to “Mean Velocity of Mudflows and Debris Flows” by Pierre Y. Julien and Anna Paris
The authors predicted mudflow and debris flow velocities with 350 field and laboratory measurements and obtained a slight trend for V=u to increase with h=d50, and the ratio of V=u is approximately 10 and rarely exceeds 30. The logarithmic relationship of turbulent resistance agrees reasonably well with the measurements. Good results also are obtained with the Manning-Strickler approach. The di...
متن کاملارائه یک رابطه تجربی برای تخمین غلظت رسوبات سیلاب واریزه ای (مطالعه موردی: حوضه آبریز جیان جیا واقع در چین)
Debris flow, as a severe geological disaster, causes huge damages in the mountainous areas every year. The peak discharge of flood and the hydraulic roughness of flow are affected by sediment concentration of debris flow. Therefore, the estimation of sediment concentration based on physical characteristics of basin, sediment and precipitation are necessary. The aim of this study is proposing an...
متن کاملImpact of spatial-temporal variations of climatic variables on summer maize yield in North China Plain
Summer maize (Zea mays L.) is one of the dominant crops in the North China Plain (NCP). Its growth is greatly influenced by the spatial-temporal variation of climatic variables, especially solar radiation, temperature and rainfall. The WOFOST (version 7.1) model was applied to evaluate the impact of climatic variability on summer maize yields using historical meteorological data from 1961 to 20...
متن کاملAn Approach to Predict Debris Flow Average Velocity
Debris flow is one of the major threats for the sustainability of environmental and social development. The velocity directly determines the impact on the vulnerability. This study focuses on an approach using radial basis function (RBF) neural network and gravitational search algorithm (GSA) for predicting debris flow velocity. A total of 50 debris flow events were investigated in the Jiangjia...
متن کاملQualitative Analysis of Plastic Debris on Beaches of Brunei Darussalam
Plastic debris is one of the major environmental concerns for the coastal area of Brunei Darussalam. It reduces the aesthetic appeals of the beaches in the country. The current study investigates marine debris on six different beaches of Brunei Darussalam along the South China Sea. Plastic was found the most abundant among whole debris by number (90.02%) and by weight (39.12%). It was classifie...
متن کامل