Infiltration and attenuation with system
The DRAINMAX Tunnel infiltration trench can be used for a multitude of applications. For this reason, the system can be extended to almost any size by adding further tunnels or lines.
The most important examples for possible system layouts can be seen at:
Local infiltration of rainwater for single family houses
- Cleaning the storm water from sealed surfaces by upstream sedimentation and filter pits
- Local infiltration of the rainwater
| 1: DRAINMAX tunnel | 6: Sedimentation and filter pit |
| 2: Backfilling of tunnel from sides and top | 7: Rainwater inflow |
| 3: Filter fabric | 8: Ground water level |
| 4: Tunnel cover | 9: Biologically active layer |
| 5: Top layer | 10: Distance to the base of the building |
Local infiltration of rainwater for commercial properties
- Cleaning the storm water from sealed surfaces by upstream sedimentation and filter pits
- Local attentuation of the rainwater
- Pit for flushing and control of the complete tunnel inspection row
| 1: DRAINMAX tunnel | 7: Sedimentation and filter pit |
| 2: Backfilling of tunnel from sides and top | 8: Flushing pit |
| 3: Filter fabric | 9: Rainwater inflow |
| 4: Tunnel cover | 10: Ground water level |
| 5: Top layer | 11: Base layer of filter fabric |
| 6: Distribution of rainwater |
Local attenuation of rainwater with throttle run-off
- Cleaning the run-off rainwater from sealed surfaces such as by preliminarily added sedimentation and filter pits
- Local attenuation of rainwater, if possible partial infiltration
- Controlled run-off volume flow rate with throttle and low height offset
| 1: DRAINMAX Tunnel | 7: Sedimentation and filter pit |
| 2: Backfilling of tunnel from sides and top | 8: Throttle pit |
| 3: Filter fabric | 9: Run-off throttle |
| 4: Membrane pan made of EPDM and filter fabric | 10: Rainwater inflow |
| 5: Tunnel cover |
Local infiltration via basin infiltration trench
- Cleaning dirty run-off rainwater (such as track system) sealed surfaces via an biologically active layer of soil in a basin
- Local infiltration of rainwater via basin and trench
| 1: DRAINMAX tunnel | 6: Infiltration basin |
| 2: Backfilling of tunnel from sides and top | 7: Rainwater inflow |
| 3: Filter fabric | 8: Ground water level |
| 4: Tunnel cover | 9: Biologically active layer |
| 5: Top layer | 10: Maximum water level |
Local infiltration of treated run-off water
- Treating the run-off water such as in a sewage plant
- Local infiltration of treated run-off water depending on the DIN technical report CEN/TR 12566-2 and DIN 4261
| 1: DRAINMAX tunnel | 5: Top layer |
| 2: Backfilling of tunnel from sides and top | 6: Sewage plant |
| 3: Filter fabric | 7: Intake of sewage water |
| 4: Tunnel cover | 8: Ground water level |
Water storage
- Cleaning the run-off rainwater from sealed surfaces such as by pre-installed sedimentation and filter pits
- Storing the run-off rainwater in a membrane pan with DRAINMAX tunnel and gravel backfilling
| 1: DRAINMAX Tunnel | 6: Top layer |
| 2: Backfilling of tunnel from sides and top | 7: Sedimentation- and filter pit |
| 3: Filter fabric | 8: Sampling point |
| 4: Membrane pan made of EPDM and filter fabric | 9: Instruction plate |
| 5: Tunnel cover | 10: Rainwater intake |
Technology | ⇒