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研究生:梁家齊
研究生(外文):Jia-Chi Liang
論文名稱:應用三維雷射掃描與GIS於邊坡穩定分析之研究
論文名稱(外文):An Application of Three-dimensional Laser Scanning and GIS on Slope Stability Analyses
指導教授:馮正一馮正一引用關係
學位類別:碩士
校院名稱:國立中興大學
系所名稱:水土保持學系所
學門:農業科學學門
學類:水土保持學類
論文種類:學術論文
論文出版年:2006
畢業學年度:94
語文別:中文
論文頁數:75
中文關鍵詞:三維雷射掃描地理資訊系統邊坡穩定分析
外文關鍵詞:3D laser scanninggeographical information systemslope stability analysis
相關次數:
  • 被引用被引用:3
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本研究介紹應用三維雷射掃描獲取邊坡三維地形資訊,以及在地理資訊系統架構下進行邊坡穩定分析的方法。經由九份二山崩塌地實測經驗,證實三維雷射掃描安全且快速的測量方式,可改善傳統測量上操作繁複且耗費人力的缺點,減少作業時間與簡化作業流程。將掃描資料建置成數值高程模型展示於地理資訊系統中,結果顯示掃描所得之高精度的「點雲」資料,能有效掌握原始的邊坡坡型。在邊坡穩定分析方面,本研究在地理資訊系統架構下開發了「三維邊坡穩定分析模組」,能自動化計算邊坡三維安全係數。藉由對九份二山崩塌地之實測邊坡進行分析,並且與二維邊坡穩定分析進行比較與驗證。結果顯示三維邊坡穩定分析計算所得之安全係數均大於二維分析結果,且搜尋之崩塌滑動面位置大都相當接近。另外,分析結果也顯示崩塌寬度也會影響計算的結果,安全係數與崩塌寬度大致呈反比的關係。
This study introduces the application of 3-D laser scanning on topography surveying for slopes, and the method of GIS-based 3-D slope stability analysis. The operation of the 3-D laser scanning is quick and safe. Comparing to conventional surveying work, it can reduce surveying time and workforces; therefore, it is better. The DEM data of slopes can be established in GIS from the high resolution “point cloud” data that are obtained by the laser scanning. Therefore, landforms of slopes can be effectively captured for further slope analysis in GIS. This study developed GIS-based 3-D slope stability analysis program, called “3-D slope stability analysis modulus”. The modulus can compute factor of safety for given slopes in GIS. After analysis for a slope near Chiu- fen-er-shan landslide, the results of factor of safety show that the FS for 3-D analysis are larger than those of 2-D analysis, and most of the 3-D sliding surfaces searched by the modulus are close to those of the 2-D slide surfaces. In addition, it is found that the selection of the width of a sliding surface for 3-D analysis will influence the result of factor of safety.
中文摘要 I
Abstract II
目錄 III
表目錄 V
圖目錄 VI
第一章 緒論 1
1.1 研究動機與目的 1
1.2 研究架構與內容 2
第二章 文獻回顧 5
2.1 三維雷射掃描相關研究 5
2.2 三維邊坡穩定相關研究 7
2.3 GIS架構下之邊坡穩定分析研究 13
第三章 研究方法 17
3.1 三維雷射掃描方法 18
3.2 掃描資料處理與DEM之建置 19
3.3 邊坡穩定分析相關技術與參數選定方法 21
3.3.1 崩塌滑動面產生方法 21
3.3.2 評估地層強度參數 26
3.3.3 劃分邊坡單元 29
3.4 邊坡穩定分析方法與步驟 32
3.4.1 二維邊坡穩定分析 32
3.4.2 三維邊坡穩定分析 34
第四章 現地掃描結果分析與展示 38
4.1 掃描區位簡介 38
4.2 三維雷射掃描結果展示 41
第五章 邊坡穩定分析結果與討論 45
5.1 現地各分析參數之選定 45
5.1.1 地層強度參數之選定 45
5.1.2 地下水位之選定 47
5.2 二維邊坡穩定分析結果 48
5.3 三維邊坡穩定分析結果 51
5.3.1 模式驗證-前人分析範例比較 51
5.3.2 現地案例分析 54
5.4 二維與三維邊坡穩定分析結果比較 58
第六章 結論與建議 62
參考文獻 65
附錄A Hoek-Brown經驗準則相關資料 71
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