Advantages Of Steel Corrugated Pipe Culvert
Compared with reinforced concrete arch culvert, steel corrugated pipe culvert has the following advantages:
(1) Low basic requirements. Since the steel corrugated pipe culvert is a flexible structure, its foundation is generally a flexible foundation. The settlement of the culvert foundation and the settlement of the roadbed of both parties are unified, so there is no need to separate the special treatment of the steel corrugated pipe culvert construction, the basic principle is how to deal with the roadbed, and how to deal with the culvert foundation. However, the requirements for the bearing capacity of reinforced concrete arch culverts are relatively high, and the foundation bearing capacity for arch culverts with a filling height greater than 12m is usually required to be greater than 500kPa. Due to the widespread distribution of soft soils in southern China, the foundation bearing capacity often fails to meet the requirements for arch culverts. Therefore, it is necessary to adopt a strong foundation treatment plan to increase the foundation bearing capacity.
(2) Convenient construction. Steel corrugated pipe production, pipeline assembly, and civil engineering can be carried out at the same time, greatly shortening the construction period. The weight of steel bellows is only 10% to 20% of the weight of cement products. It supports early project delivery. However, the construction of reinforced concrete arch culverts often takes several months and requires a lot of manpower and material resources.
(3) Better economy. After calculation and comparison, the average cost per meter of the steel bellows culvert proposed in this paper is about 3,000 yuan lower than that of the arch culvert of the same specification, and the section with high fillings is often longer. Therefore, the use of steel bellows culverts can save more costs. Considering the convenience of steel bellows culvert construction and the possible saving of foundation treatment costs, its economy is more considerable.
(4) Environmental protection and low carbon. By reducing or abandoning the use of cement, sand and other traditional building materials, it is conducive to environmental protection and has far-reaching significance to environmental protection.
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