Utility tunnel is an integrated underground pipe ditch or pipeline corridor, which is especially used for laying of underground tunnel of municipal pipeline project.

所谓共同沟，即通常所说的地下综合管沟或管廊，是专门用于集中敷设各种市政管线的地下隧道。

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The junction work, to reduce flooding near the M4, included ditch clearing, pipe cleaning and upgrading of grills around the A33.

BBC: Flooding affects Reading houses despite new defences