高雄捷運系統橘線延伸至高雄縣鳳山地區，鳳山為高雄縣人口最密集之地區，本研究之目的為藉由高雄捷運橘線 CO4 區段標O13及O14站體深開挖案例資料的蒐集（沉陷觀測點），進行歸納整理與分析，建立壁體最大側向變形量、地表最大沉陷量等和開挖深度之間的經驗關係式。本研究以過去專家學者所提出之經驗公式為理論基礎，進行高雄捷運橘線CO4區段標深開挖案例分析，經由現地的監測資料，以經驗公式分析其最適性之預測，再以統計學的回歸分析，來綜合探討最大沉陷量及最大位移量與相對於深度的關係。經由彙整後建立一個適合高雄地區預測研判地表沉陷之評估模式。
研究結果顯示，高雄捷運橘線CO4區段標之主站體連續壁最大側向變形均產生於開挖深度附近；二個站體深開挖案例造成之地表沉陷曲線皆屬於凹槽型沉陷型式。由本研究所建立之相關經驗範圍值，將可提供日後高雄地區深開挖的工程擋土設施設計及開挖施工之參考。

The orange line of Kaohsiung Mass Rapid Transportation (KMRT) is extended to Fongshan, where it is the most populated area in Kaohsiung county.
The purpose of this study is to collect the data（SM）of deep excavation during the construction of O13 and O14 stations in the KMRT orange line and to build up the empirical relationships among the lateral deformation of the wall, the ground surface settlement, and the depth of excavation. This study based on the empirical formula developed by the previous researcher to analyze the monitoring data collected from CO4 block during deep excavation in the KMRT orange line using with regression analysis method. The most suitable empirical relationships through the analysis are obtained for the maximum settlement and the maximum displacement relative to the depth. An appropriate pattern of the ground surface settlement in this area is also obtained.
The results show that the maximum lateral deformation of the slurry wall of the CO4 block in the KMRT orange line during construction is located near to the surface of excavation. The shape patterns of ground surface settlement curve in these two stations are the concave type. The empirical relationships obtained from this study can be used as a reference for the slurry wall design and the deep excavation in the Kaohsiung city area.

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