In these simple prefabricated houses, is that concrete slope at the back, against the wall, called a \"drainage slope\"?

The concrete slope installed along the base of the wall can indeed be called a \"drainage slope.\" Its main function is to prevent rainwater from accumulating beside the wall, guiding it away from the building and thus reducing erosion and moisture problems affecting the building’s foundation. If this drainage causes damage to the water supply and drainage pipes in the bathroom due to settlement, it needs to be repaired. To resolve this issue, there are usually the following steps: 1. Construction assessment: First, it is necessary to assess the degree of settlement of the foundation slab as well as the damage to the water inlet and outlet pipes, in order to determine whether a complete replacement or partial repair is required. 2. Expose the damaged pipes: Dig a trench beneath the drainage surface to expose the damaged water inlet and outlet pipes. 3. Repair or replace pipes: After determining the extent of the damage, repair or replace the water inlet and outlet pipes. If the pipeline is severely damaged, it may need to be completely replaced ； If the damage is minor, repair may be sufficient. 4. Strengthen the foundation: While excavating, it is possible to consider strengthening or rebuilding the existing foundation to prevent further settlement in the future. 5. Reconstruct the drainage slope: After repairing or replacing the pipes, it is necessary to rebuild the drainage slope to ensure that it has a sufficient slope to effectively guide rainwater. 6. Restore the ground surface: Finally, fill back the excavated soil to restore the ground surface to its original state. Indeed, if the spreader length is 100 meters, digging out the entire area beneath the spreader slope to lay a foundation is a rather large-scale project. If the settlement and pipe damage are localized, it is possible to treat only the affected areas, thereby reducing the difficulty and cost of repairs. However, if the problem exists throughout the entire length, comprehensive repairs may be necessary; in such cases, it is recommended to consult a professional engineer for an on-site assessment and specific solutions. .

It can be said that the drainage pipes were broken as a result of improper burial; the low weight of the drainage system itself together with its large stress-bearing area does not cause such a phenomenon, for reference only.

The runoff can damage the drainage pipes; the quality of these pipes is really poor.