What is the Advantage and Disadvantage of Culvert Pipe Galvanized

1 Brief introduction of metal corrugated pipe culvert

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Corrugated pipe culvert is a culvert constructed with metal corrugated pipe joints. After the 2.0-8.0mm thin steel plate is pressed into a corrugation, it is rolled into a pipe joint, which can increase the rigidity of the pipe joint and the resistance strength of the pressure of the pipe shaft. In order to prevent corroded corrugated pipe culverts, the inner and outer surfaces of corrugated pipe joints and fastening connecting bolts were hot-dip galvanized, with an average thickness of galvanized layer &#;84 μm. Compared with reinforced concrete pipe culverts, metal corrugated pipe culverts have the advantages of thin pipe joints, light weight, easy transportation and storage, simple construction process, fast assembly, and short construction period.

When installing metal corrugated pipe, it can be arbitrarily assembled into any length according to the needs. If necessary, the pipe joint can be removed and moved to other places for construction. In areas lacking sand and gravel materials or in areas with low foundation bearing capacity, the advantages of metal bellows are more significant. Metal corrugated pipe culvert is a flexible structure that can adapt to large settlement and deformation, and has a certain earthquake resistance. The disadvantage of metal corrugated pipe culvert is that it consumes more steel than concrete pipe culvert, and its price is greatly affected by the market price of steel. In highway construction, steel corrugated pipe culvert has been used instead of reinforced concrete for culvert construction for more than 100 years. In , the United States pioneered the feasibility study of corrugated pipe culvert channels and culvert pipes. Since then, steel bellows have been used for culvert construction in highway construction in the United States, Canada, Australia and other countries. In , Japan formulated the technical specifications for the design of bellows and culverts. With the installation of bellows culverts all over the world, this structure has proved to be versatile. After China's reform and opening up, Shenzhen and Datong began to import finished corrugated pipe culverts from abroad for culvert construction; Shanghai Highway Administration, Shanghai Municipal Engineering Design and Research Institute, Shanghai Tongji University conducted dynamic and static load tests on metal corrugated pipe culverts The results show that metal bellows culverts can meet the design and use requirements; metal bellows culverts are also used in the construction of Qinghai highway. Practice has proved that metal bellows culverts in cold areas fully meet the requirements of culvert construction in highway construction.

Corrugated Pipe Culvert

2 Advantages of metal bellows culverts.

1) Easy on-site installation, no need to use large equipment.

2) It is helpful to solve the problem of frost damage to the concrete structure of bridges and pipe culverts in the north.

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3) Reducing the amount of cement, yellow sand, stones, and wood, which has environmental protection significance.

4) The structural force is reasonable, the load distribution is uniform, and it has a certain resistance to deformation. It has a strong ability to adapt to the deformation of the foundation, and has low requirements for the bearing capacity and flatness of the foundation.

5) Adopt standardized design, simple production and design, and short production cycle. The centralized production of the factory, the production is not affected by the environment, the performance is stable, the installation is convenient, and it is conducive to quality control.

6) The actual cost of the project is similar to or lower than the culvert of the same span.

7) Short construction period is the most obvious advantage. Civil engineering and pipe joint installation can be implemented separately, and then assembled as a whole.

8) It is conducive to improving the "staggered car jump" phenomenon at the junction of the soft ground structure and embankment, improving the comfort and safety of driving and reducing the cost of post-operation operation and maintenance.

Plastic is better than metal for several reasons. First, it will never rust out on you. EVER. Second, get the type with the smooth inner wall. It stays cleaner and doesn't hold silt and debri. As for strenght, both rely on preasure from the fill material being equal on all sides. You need a certain amount of fill on top based on the size of the pipe you install to reach maximum strength. For an RV, you will need this. For a car or light tractor, the amount on top isn't as important.

Since you want to create a crossing over a ravine, go as big as you can. That ravine was created by allot of water. The size of it shoud tell you the amount of flow you have to deal with. 24 inches is a huge pipe and should be able to handle most situations, but there is a reason they make bigger pipes and/or install two side by side.

Putting grates in front will cause more problems than it would solve. Small leaves will wash right through it, but with a grate in front, they will create a dam. It's very rare to see one along highways or anyplace that they are put in profesionally, so I'm thinking you don't need one. I don't have any on mine and so far haven't had any issues.

Backfill is usually with clean soil, but sometimes sand is used instead. Rock isn't any good because of the voids and dificulty in getting it all compacted. At the entrance to the pipe you will need to put something down to stop erosion. I've used sacks of cement for this with good results. Of course, it's not as attractove as rock. If you use rock, be sure it's big enough not to wash away or let the water through it. Small rock is useless during a heavy storm.

And always plan for the very worse that can happen.

Eddie

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