本文中探討孔井的鑽管在受到不同的自重及軸力之情況下，傾斜角度及孔徑大小等因素對第一個模態挫屈值的影響，利用ABAQUS軟體來模擬鑽管在承受自重及軸力下，其挫屈後變形的情況為何，及第一個模態挫屈值的數值分析。
分析結果顯示，在不同情況下，孔井中的鑽管之挫屈值隨著孔徑的增加，在不同傾斜角度下大致上來說都會增加。且選擇適當的孔徑大小、傾斜角度及自重大小可以有效的控制鑽管挫屈後幾何變形的形狀、及第一個模態挫屈值。

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