Introduction of drain board

Introduction of drain board

The drainage board is pressed into a conical boss (or hollow cylindrical porous) by polyethylene plastic floor. The top surface of the conical raised platform is coated with a filtered geotextile to prevent soil particles from passing through, thus avoiding drainage channels. It is blocked to make the well head drain smoothly. The traditional drainage method uses brick-and stone as the filter layer, uses more cobble-or gravel as the filter layer,-and discharges the water to the site. To drain the water to the site. It is time-saving, labor-saving, energy-saving, investment saving-and load reducing to use drainage board instead of pebble filter layer for drainage.

characteristic

Good drainage system plays an important role in the construction cycle of civil engineering-and the normal use-and service life of the structure. Good plastic drainage board-and porous seepage pipe form a drainage system with * *, cylindrical porous drainage board-and geotextile also form a drainage system, so as to form a system with the functions of water seepage, water storage-and drainage.

purpose

Landscape engineering: garage roof greening, roof garden, football field, golf course, bathing engineering, municipal engineering: road subgrade, subway tunnel construction engineering: upper-and lower building foundation, basement-and outer wall, roof waterproof-and heat insulation-and other transportation engineering: highway, railway subgrade, dam-and slope protection

Laying procedure

1. Remove the dregs from the paving site, level the cement,-and make sure that there is no obvious concave-and convex place on the site. 2-5 ‰ slope is required for the roof of outdoor garage-and roof garden.

2. Roof greening-and outdoor garage roof greening can be used with plastic blind ditch-or soft permeable pipe, so that the water discharged from the drainage board can be concentrated to the nearby downpipe-or nearby urban sewer.

3. Three. In the basement, the overhead layer above the foundation, that is, in front of the bottom plate, the drainage plate is made to prevent groundwater seepage. The circular platform is downward,-and there are blind ditches around, so the groundwater can not come up. The seepage water naturally flows into the surrounding blind ditch through the space of the drainage board,-and then flows into the sump through the blind ditch.

4. The interior wall of the basement is impermeable,-and the drainage board can be laid on the main wall of the building. The circular platform faces the main wall,-and a layer of single wall-or steel mesh cement is used to protect the drainage board outside the drainage board. The space of the seepage board outside the wall directly flows down into the blind ditch-and directly into the sump.

5. Lay drainage board in any section * * note that soil, cement, yellow sand, etc. are not allowed to enter the front space of drainage board * * the space of drainage board is smooth.

6. Protective measures shall be taken for the laying of drainage board. Backfill shall be done for the laying of drainage board on the floor-or outdoor garage in time to prevent the quality of drainage board from being affected by strong wind. The waterproof of basement-and inner wall shall be protected as soon as possible to prevent the drainage board from being damaged by people-or objects.

7. The backfill is cohesive soil. It is ideal to lay 3-5cm yellow sand on the geotextile, which is conducive to the water seepage of the geotextile. If the backfill is a kind of nutrient soil-or light soil, there is no need to lay another layer of yellow sand, which is easy to filter water.

8. When the drainage board is laid, 1-2 fulcrums can be overlapped on the right side of the board,-or the two bottom plates can be overlapped with geotextile, as long as no soil enters the channel of the drainage board, so as to keep the drainage unobstructed.