| 摘要: | 目前三維雷射掃瞄儀(3D Laser Scanner)因具備了快速、大量且高密度的量測方式，在測繪科技應用範圍愈加廣泛。本研究利用三維雷射掃瞄快速且大量取得掃瞄點的特性，對土方變化量進行估算，此量測方式與傳統人工方法相比之下，可節省許多人力與時間，也可較快速的獲取高精度與高解析地形資料。
透過三維雷射掃瞄儀掃瞄位於蘆洲市垃圾棄置場，將掃瞄取得點雲(Point Clouds)資料進行後製軟體設置作業，點雲資料經軟體處理後，產生之3D數值模型，再輸出AutoCAD格式地形圖，地形圖共分為六區(A〜F區)計算，以20m×20m及40m×40m之網格柱狀土方公式，每20m或40m取一斷面剖面圖，得土方相關數據，以專業程式軟體計算掃瞄區內等高線圖形每一坵塊累加後，即可得到該掃瞄區域內與設計高程土方差異量。
本研究主要成果包括以三維長距雷射掃瞄儀(RIEGL VZ-1000)建置地形資料，使用三維雷射掃瞄儀於地形測量掃瞄製作一作業流程，經由人工計算與三維雷射掃瞄儀掃瞄結果，土方改變量每20m網格計算A~F區高於設計高程土方量為59,287.07m3、A~F區低於設計高程土方量4,913.85m3與每40m網格計算A~F區高於設計高程土方量為55,236.25m3、A~F區低於設計高程土方量5,363.25m3，以40m減去20m結果A~F區高於設計高程土方量-4,050.82m3、A~F區低於設計高程土方量+449.15m3。使用兩者數據分析比較土方體積的變化量，可供於日後相關地形測量及土方計算之參考。
3D Laser Scanner has a fast, large and high density measurement, more widely application in surveying and mapping science and technology. This study uses 3D laser scanning characteristics of fast and huge quantities of scan point, used in earthwork estimation of change, measured in this manner with traditional manual methods, by contrast, can save a lot of manpower and time, you can more quickly obtain high accuracy and high resolution topographical information.
Through 3D laser scanner scan Luzhou District garbage abandoned field, will scan made points cloud data for post processing system software set job, points cloud data by post processing system software, produced of 3D numerical model, again output AutoCAD Format topographic maps, topographic maps total is divided into six area (A〜F area) calculation, to 20mx20m and the 40mx40m of network grid column shaped earthwork formula, each 20m or 40m take a section profile figure, was earthwork related data, To professional program calculates scanning software the contour shape after each block of mounds rolled, you can get the scanning and design elevation difference of earthwork quantities in the region.
This research main results including to 3D long-distance laser scanner (RIEGL VZ-1000) built reset terrain data, the use of 3D laser scanner to create a workflow in the topographic survey scans through manual calculation and 3D laser scanning aiming instrument scan results, the amount of earthworks to change every 20m grid computing A~F area is higher than the design elevation earthwork 59,287.07m3, A~F area below the design elevation earthwork 4,913.85m3 grid computing with each 40m A~F area higher than the design elevation earthwork for 55,236.25m3 A~F lower than the design elevation earthwork 5,363.25m3 minus 20m/40m results A~F area is higher than the design elevation earthwork -4,050.82m3, A~F area low earthwork design elevation+449.15m3. Use both data analysis, comparison of earthwork volume change, are available in the future related topographic survey and earthwork calculation reference. |
