泥石流是我國山區(qū)常見的自然現(xiàn)象,由于泥石流爆發(fā)迅速,來勢(shì)兇猛,常伴有崩塌、滑坡及洪水等多重作用,破壞力大,每年都造成嚴(yán)重的人員傷亡和財(cái)產(chǎn)損失,阻礙經(jīng)濟(jì)的發(fā)展,因此合理有效的預(yù)報(bào)就變得尤為重要。本文以四川省汶川縣七盤溝為例,采用SCS分布式水文模型結(jié)合土壤類型、坡度、土地利用類型等下墊面因素,推算流域的產(chǎn)匯流量,并以此為基礎(chǔ)結(jié)合經(jīng)驗(yàn)公式對(duì)泥石流暴發(fā)規(guī)模作了系統(tǒng)的研究,并與2013年7月11日實(shí)際發(fā)生的泥石流進(jìn)行對(duì)比。結(jié)果顯示:計(jì)算得到的清水洪峰流量和泥石流總量分別為136.75m³/s和110.3×104m³,其中泥石流總量與實(shí)測(cè)值相比,誤差在5%以內(nèi)。說明基于SCS水文模型進(jìn)行泥石流預(yù)報(bào)具有一定的應(yīng)用意義,預(yù)測(cè)結(jié)果可以促進(jìn)泥石流工程防治的開展,為泥石流的防治和提供基礎(chǔ)。 

【文章來源】：西南科技大學(xué)四川省

【文章頁數(shù)】：43 頁

【學(xué)位級(jí)別】：碩士

【文章目錄】：
摘要
ABSTRACT
1 Introduction
    1.1 Research Background
    1.2 Literature Review
    1.3 Hydrological Models
        1.3.1 Status of Debris Flow Forecast
        1.3.2 Current Situation of Hydrological Model Research
    1.4 Importance of Study
    1.5 Objectives
    1.6 Research Content
    1.7 Experiment Layout
    1.8 Innovations
2 Situation of the study area
    2.1 Research area and its geographical location
    2.2 Meteorology and hydrology
    2.3 Landform
    2.4 Stratigraphic lithology
    2.5 Debris flow events in history
3 Methodology
    3.1 Construction of Distributed Hydrological Model of Production and Confluence
    3.2 Runoff Yield Calculation
    3.3 Confluence Calculation
4 Examples and Results
    4.1 Overview of"7.11"Debris Flow in
    4.2 Sub-basin Division
    4.3 Determination of CN Value of SCS Model
    4.4 Clear Water Flow Calculation
    4.5 Debris Flow Calculation
5 Conclusion
Additional Table
Acknowledgement
References



本文編號(hào)：2982396