Comparing and Evaluating Two Physically-based Models:OpenLIS
發(fā)布時(shí)間:2021-02-24 01:52
潛在滑坡體積是表示潛在滑坡量級(jí)的重要參數(shù)。有了潛在的滑坡體積方量,就可以進(jìn)行滑坡災(zāi)害和風(fēng)險(xiǎn)評(píng)估,并且可以制定防災(zāi)減災(zāi)計(jì)劃和相應(yīng)預(yù)算。預(yù)測(cè)潛在滑坡的體積首要任務(wù)是預(yù)測(cè)地下的潛在滑動(dòng)面,然而由于地下的各種不確定性,獲得此信息非常困難,因此也導(dǎo)致了對(duì)滑坡體積的預(yù)測(cè)非常困難。一些基于物理的建模方法可用于預(yù)測(cè)滑坡體積,這些物理模型通過(guò)分析斜坡的穩(wěn)定性并確定潛在的破壞面來(lái)預(yù)測(cè)滑坡體積。然而,不同的模型在提前預(yù)設(shè)和最后確定潛在的破壞面時(shí),以及在分析邊坡的穩(wěn)定性時(shí)引入了不同的假設(shè),并且不同的模型考慮的造成滑坡的環(huán)境因素也不同,因此對(duì)滑坡體積的預(yù)測(cè)也可能不同。另一方面,不同的模型具有不同的輸入數(shù)據(jù)要求,因此成功應(yīng)用這些物理模型的困難程度也可能不同。本研究的主要目標(biāo)是比較兩種用來(lái)預(yù)測(cè)滑坡體積的基于地理信息系統(tǒng)(GIS)的分布式模型:OpenLISEM和Scoops3D。由于獲取輸入數(shù)據(jù)和校驗(yàn)數(shù)據(jù)的困難性,本研究采用虛擬數(shù)據(jù)集來(lái)進(jìn)行模型的比較。此虛擬數(shù)據(jù)通過(guò)模擬火山土壤來(lái)構(gòu)造一個(gè)火山環(huán)境;诩傧氲幕鹕江h(huán)境,此研究開(kāi)發(fā)了三種模擬情景。在情景1中,由于爆裂噴發(fā)式火山的發(fā)生,火山灰均勻沉降并覆蓋了整個(gè)地形,由此...
【文章來(lái)源】:長(zhǎng)安大學(xué)陜西省 211工程院校 教育部直屬院校
【文章頁(yè)數(shù)】:72 頁(yè)
【學(xué)位級(jí)別】:碩士
【文章目錄】:
摘要
abstract
1. Introduction
1.1. Background
1.2. Problem statement
1.3. Research objectives and research questions
1.4. The organization of the thesis and workflow
2. Methods for landslide volume estimation
2.1. Post-event landslide volume estimation
2.2. Landslide volume prediction
3. DESCRIPTIONS OF THE TWO MODELS: OPENLISEM AND SCOOPS3D
3.1. OpenLISEM
3.2. Scoops3D
4. Methodology
4.1. The use of hypothetical datasets in this work
4.2. Environment Description and Scenario Design
4.3. Input Data Preparation
4.4. The Model Set Up
4.5. Calculation of Landslide Volume
4.6. The Model Comparison
5. results and analysis
5.1. The determination of internal model parameters
5.2. Critical Soil Thickness
5.3. Model Comparisons Under Different Scenarios
6. discussion, conclusions, and recommendations
6.1. Discussion
6.2. Conclusions and recommendations
List of references
ANNEXA
Acknowledge
本文編號(hào):3048592
【文章來(lái)源】:長(zhǎng)安大學(xué)陜西省 211工程院校 教育部直屬院校
【文章頁(yè)數(shù)】:72 頁(yè)
【學(xué)位級(jí)別】:碩士
【文章目錄】:
摘要
abstract
1. Introduction
1.1. Background
1.2. Problem statement
1.3. Research objectives and research questions
1.4. The organization of the thesis and workflow
2. Methods for landslide volume estimation
2.1. Post-event landslide volume estimation
2.2. Landslide volume prediction
3. DESCRIPTIONS OF THE TWO MODELS: OPENLISEM AND SCOOPS3D
3.1. OpenLISEM
3.2. Scoops3D
4. Methodology
4.1. The use of hypothetical datasets in this work
4.2. Environment Description and Scenario Design
4.3. Input Data Preparation
4.4. The Model Set Up
4.5. Calculation of Landslide Volume
4.6. The Model Comparison
5. results and analysis
5.1. The determination of internal model parameters
5.2. Critical Soil Thickness
5.3. Model Comparisons Under Different Scenarios
6. discussion, conclusions, and recommendations
6.1. Discussion
6.2. Conclusions and recommendations
List of references
ANNEXA
Acknowledge
本文編號(hào):3048592
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