Trial pit excavation is a method used to gather subsurface information by manually excavating small pits or trenches. This process involves digging and removing soil layers to expose the underlying geological features, utilities, or structures. Typically shallow, trial pits provide a localized view of subsurface conditions.

 

This technique allows for visual inspection, sampling, and measurements to assess soil composition, groundwater levels, or the presence of buried infrastructure. Trial pit excavation is commonly used in geotechnical investigations, construction projects, and archaeological studies to gather essential data for design, planning, and assessment purposes.

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探井開挖是一種通過人工挖掘小型坑或溝渠來收集地下資訊的方法。這個過程涉及挖掘和移除土層，以暴露底層的地質特征、管線設施或結構。通常較淺的試驗坑可提供局部地下環境的視圖。

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這種技術允許進行視覺檢查、取樣和測量，以評估土壤成分、地下水位或埋藏基礎設施的存在。試驗坑挖掘通常用於地質勘察、建築項目和考古研究，以收集對設計、規劃和評估的關鍵數據。