Скачать или смотреть From wall protection to backfill: How does sand change the drainage performance of soakaway Wells?

The role of backfilling sand in the seepage well wall is mainly reflected in the following aspects:

1. Enhance water seepage performance

The gap between sand particles is large, which can effectively promote the downward penetration of rainwater or surface water, thereby enhancing the drainage function of the seepage well.

It can quickly disperse the water flow and avoid local water accumulation.

2. Protect the wall structure

As a buffer material, sand can reduce the direct effect of external pressure on the wall and protect the stability of the wall.

Prevent the wall from deforming or collapsing due to soil pressure or water flow impact.

3. Improve drainage effect

Sand has good water permeability, which can prevent fine particles from entering the seepage well and blocking the drainage system, thereby improving drainage efficiency and system life.

4. Prevent foundation settlement

Evenly filled sand can stabilize the foundation and avoid settlement problems caused by uneven backfill.

5. Reduce soil erosion

Sand can filter and fix soil particles, reduce sediment loss, and protect the surrounding soil structure from being destroyed.