The Metallic Corrugated Culvert hole in the form of corrugated steel culverts are character -wall, side wall, cone sloping corridor-style, tilt and extend the type and dustpan straight tube type. Metallic Corrugated Culvert Hole should be based on the flow characteristics and topography and rivers embankment section form, selected in accordance with good form, good import and export processing plays an important role in ensuring the smooth flow of the culvert and embankment stability of flow. Which character wall, tilt and extend straight pipe culvert type bellows design and construction of the most commonly used.
Character wall openings of gravity wall structure, which is characterized by: simple structure, building structure more beautiful; better hydraulic performance, simple construction, small quantities. Commonly used in flat and straight, longitudinal elevation small brook. When a high wall, A large masonry volume increases, the use of inadequate economic, then you can consider using tilting or straight pipe to extend the ceremony.
Inclined hole steel bellows is processed into the ends of the same slope and embankment slope. Structure is simple, seamless and embankment protection works, representing savings of character cave wall materials suitable for water flow through the culvert squeeze much smaller beam and flow, when the flow rate increases, the response to the positive side be paved embankment slope reinforcement.
When a larger diameter or wider ditches, culverts can be extended beyond the embankment slope extending to form a straight pipe to extend the type hole. This hole is not required on the slope for processing, import and export as needed within a certain range of paving, culverts on both sides and the top of the range, slope backfill material should adopt the block, stone tablets to prevent water erosion threatening roadbed.
Other forms, such as side -wall, sloping cone and corridor-style structure is relatively simple, should be selected according to the actual needs of the project. Dustpan type hole suitable for flow rates faster, larger flow wide and shallow rivers, the structure is relatively complex, poor hydraulic performance, apply special terrain.
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