|Model||water retaining height||installation mode||installation groove section||bearing capacity|
|Hm4e-0012C||1150||embedded installation||width1540 * depth: 105||heavy duty (small and medium-sized motor vehicles, pedestrian)|
|Grade||Mark||Bearing capacity (KN)||Applicable occasions|
|Heavy duty||C||125||underground parking lot, car parking lot, residential quarter, back street lane and other areas where only allow non-fast driving zone for small and medium-sized motor vehicles (≤ 20km / h).|
(3) The levelness of the installation surface:
The installation surface horizontal height difference of the two sides should be ≤ 30mm (measured by laser level meter)
(4) The flatness of the installation surface:
According to the quality acceptance code of construction ground engineering GB 50209-2010, the surface flatness deviation should be ≤2mm ( applied 2m guiding ruler and wedge feeler gauge). Otherwise, the ground should be leveled first, or the bottom framework will leak after installation.
(5) Installation surface strength
a) The installation surface is made of at least C20 concrete with thickness ≥Y and the surrounding horizontal extension X ≥300mm or using equivalent strength of installation surface.
b) The installation surface should be free of cracks, hollowing, falling off , etc. The concrete should be qualified for the quality acceptance code of concrete structure engineering GB50204-2015, otherwise, need remade concrete installation surface according to the requirement.
c) In case of concrete, it should beyond curing period.
(6) Side walls
a) Side wall height should be higher than the flood barrier, otherwise it should be created.
b) The side walls should be made of solid brick or concrete or equivalent installation surface. If the wall is of metal or nonmetal material, relevant reinforcement should be applied.
How the hydrodynamic automatic flood barrier retain water