快速評估開挖引致之地盤位移，向來是都會區地下工程開挖的重要議題。從過往至今，台灣持續有許多不同規模的工程在施作，隨著公共建設之興建與鄰房保護之重視，地下工程使用輔助工法也日益增加。評估方法除了藉由經驗公式、數值分析、簡化評估法外，近年的大數據分析亦可作為快速評估之方法。由於工程案例特性及位置各有不同，工程人員對於地區開挖工程特性之敏感度不盡相同，為了讓工程師在時間成本與初期現地調查有限的情況下，有更便利之設計參考，本文針對都會區開挖，收集過去珍貴的案例，將資料彙整並建立資料庫，建立簡化評估方法以及搜尋應用方法，同時結合國外已發表之案例，以大數據分析探討不同開挖特性下造成之壁體變位。最終提供一線上平台，以大台北地區工址距離搜尋與計算模式為主軸應用，預估開挖後之壁體變位以及查詢鄰近地區輔助工法之設計，供日後工程師作為初步設計之參考，進而達到經驗傳承之理想。

How to quickly evaluate the displacement caused by excavation has been an important issue in the urban underground engineering. In addition to using empirical formulas, numerical analysis, and simplified evaluation methods, we can also use big data and similarity theory as the evaluation methods. From past to present, many different scales of construction have been done in Taiwan. Since the soil characteristics are different from case to case, many engineers have different sensitivities to excavation characteristics in different areas. In order to give engineers a more convenient evaluation method, we focus on urban area and collects many cases in Taiwan to create a database. Then combine the data with published cases in other countries, and discuss the wall displacement in different excavation characteristics. In the end, we provide an online platform, with the Taipei area distance search by sites as the main application, and use it to estimate the wall displacement after excavation and search for the design of auxiliary construction methods in the adjacent areas. Through our online platform, engineers can predict the wall displacement, which can be a reference for preliminary design in the future. We will achieve the ideal of experience inheritance in this way.

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