The Dig-and-Replace method involves excavating the ground to remove the existing pipe and install a new one in its place. This method is used when the existing pipe is severely damaged, corroded, or no longer functional.

 

Excavation requires digging trenches or pits to expose the pipe, after which the damaged pipe is replaced with a new one. It ensures the complete replacement of the pipe, leading to improved functionality, increased durability, and a longer lifespan of the underground pipe system.

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開挖更換法涉及挖掘地面以移除現有管道並在其位置安裝新管道。當現有管道嚴重損壞、腐蝕或失去功能時便會使用這種方法。

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開挖需要挖掘溝渠或坑穴以暴露管道，之後被損壞的管道會被新的管道替換。這確保了管道的完全更換，從而提高功能性、耐用性並延長地下管道系統的使用壽命。