The difference between gutter and open ditch

Trench, actually refers to underground ditches, and the main differences between open ditches are as follows:

First of all, express different meanings

1. Culvert: refers to the ditch below the ground to guide water flow.

2. Open ditch: refers to the drainage ditch without ditch cover plate outside the apron slope of the external wall of the house.

Second, the role is different.

1. Culvert: a ditch that guides water flow below the ground, does not leak water or collect water, and an underground drainage ditch.

2. Open trench: The function of open trench is to lead surface water and rainwater to sewer quickly and systematically to prevent the foundation of the house from being soaked and infiltrated by water, thus ensuring the consolidation and durability of the house.

Third, the longitudinal slope at the bottom of the ditch is different.

1, underground ditch: the longitudinal slope at the bottom of the ditch should be greater than 0.5%.

2. Open trench: The slope at the bottom of open trench is about 0.3 ~ 0.5%.

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