摘 要：該研究針對(duì)工程地質(zhì)體由碎裂性破壞到運(yùn)動(dòng)性破壞的演變過程，結(jié)合該階段體系內(nèi)部顆?！佑|力鏈網(wǎng)絡(luò)→體系多尺度結(jié)構(gòu)，開展地質(zhì)災(zāi)害散體（比如碎屑流、泥石流和崩塌）起動(dòng)機(jī)理、流動(dòng)過程及其規(guī)律的跨尺度力學(xué)方法的研究。研究?jī)?nèi)容分為基礎(chǔ)研究和工程應(yīng)用兩個(gè)層面，其中基礎(chǔ)研究層面集中在顆粒/顆粒作用、顆粒/孔隙水作用、松散地質(zhì)流體/底床作用等基礎(chǔ)問題，確定內(nèi)部接觸結(jié)構(gòu)與宏觀流動(dòng)本構(gòu)關(guān)系的關(guān)聯(lián)，建立散體起動(dòng)、形成、運(yùn)動(dòng)和淤積的統(tǒng)一動(dòng)力學(xué)模型，開發(fā)高效數(shù)值求解方法；在得到野外觀測(cè)、室內(nèi)試驗(yàn)和無(wú)人機(jī)航拍得到的典型流動(dòng)特征的驗(yàn)證后，形成計(jì)算模塊集成到項(xiàng)目擬開發(fā)的監(jiān)測(cè)和數(shù)值在線分析軟件，基于高性能計(jì)算應(yīng)用于工程典型案例，比如研究武隆滑坡、汶川震區(qū)發(fā)生的碎屑流和泥石流，以及尾礦庫(kù)失穩(wěn)流動(dòng)等。重點(diǎn)研究如下內(nèi)容。（1）分析地質(zhì)災(zāi)害散體的多尺度結(jié)構(gòu)及其演變規(guī)律。（2）研究顆粒流變關(guān)系以及水對(duì)碎屑流的影響。（3）開展典型地質(zhì)災(zāi)害散體流動(dòng)的試驗(yàn)和計(jì)算。（4）提高無(wú)人機(jī)遙感影像技術(shù)精度，完善多參數(shù)、全天候滑坡征兆監(jiān)測(cè)技術(shù)。通過完成上述研究，該課題可提出顆粒體系細(xì)觀結(jié)構(gòu)關(guān)鍵物理量的分析方法，構(gòu)建顆粒流變關(guān)系及參數(shù)確定方法，得到室內(nèi)試驗(yàn)和野外觀測(cè)的驗(yàn)證，掌握滑坡體全參數(shù)監(jiān)測(cè)技術(shù)和預(yù)警方法，開發(fā)完整地質(zhì)災(zāi)害無(wú)人機(jī)遙感影像獲取與三維建模技術(shù)，同時(shí)形成一支從事泥石流基礎(chǔ)研究的多學(xué)科交叉的高水平研究隊(duì)伍。

關(guān)鍵詞：起動(dòng)機(jī)制和流動(dòng)規(guī)律 無(wú)人機(jī)技術(shù)

Abstract：This work foucese on the behaviours of debris flows. By means of mutliscal ansylsis， i.e. individual particle， internal structure and bulk， the triggering mechanism， flow process and range will be investigated. This study is classied into fundamental stydies and engineering applciaitons. It involves interparticle interactions， particle-fluid inetcications， garmualr mertaials and bed interactions. Deternination of the realtionsship between internal stecture and conciotutitive models， and development of a general dynamical model describing the initial， formationa and developement of debris flows. The major contents are.（1）Analysis the mutlscaile structure and its evolutions.（2）Influence of fluid in rehologicail properties of debris flows.（3）Large scale experiments of debris flows and numerical simuaitons.（4）Unmanned palne capturing the geoharzard site By completing these objectives， the major quantities of internal strcutre can be decrisbed and the condition of cascade reservoirs or landslide lakes can be revealed systematically. The dam-break proliferation mechanisms under the condition of debris flow or landslide lakes can be revealed. The dam-break accumulated model of cascade reservoirs or landslide lakes can be established. Then， the key scientific problem， dam-break mechanism and risk control problem can be solved with the relevant subjects under complex conditions.Through theory and method researches of debris flow proliferation mechanisms of cascade reservoirs， science and technology developments are promoted in the aspects of debris flow and related fields. The overall technological level in the aspect of water conservancy and hydropower can be promoted. Meanwhile， a high-level multidisciplinary research team worked on the researches of debris flow will be formed.

Key Words：Debris flows； Triggering mechanics and flow processes； Unmanned planne

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