Advantages of U-shaped sheet piles

Excellent performance and low price. Compared with other concrete piles, U-shaped plate pile while maintaining the same width, the consumption of materials is relatively small. For example, under the condition of large-scale use of prefabricated reinforced concrete piles, U-shaped steel piles more material, while the use of prestressed concrete structure, U-shaped steel sheet pile structure has obvious advantages. In addition, U-shaped piles after the completion of the design, according to the design requirements and production orders for reasonable adjustment and installation, with a wide range of geological applications. According to geological conditions and static pressure, and then easy to control the formation of pile construction quality, to ensure that the U-shaped pile combination and shape symmetry.

Good mechanical performance. U-shaped plate pile and other cross-section piles under the same cross-sectional conditions, U-shaped steel plate inertia relative to ordinary rectangular steel sheet pile bending moment greatly increased, so the improvement of bending shear performance, with relatively excellent mechanical properties. At the same time, because the ordinary sheet pile can not meet the larger mud height required space, will be around the high voltage wire or other facilities location restrictions, piling will be difficult to achieve, easy to cause structural damage.

The construction technology of water dike is low. U-type sheet pile in the construction of the various stages of the engineering design and construction requirements are not high, if the process control is not good or does not meet the construction requirements, easy to cause damage to the pile. However, due to the U-shaped piles of prestressed pipe piles, the dam construction process requirements are relatively low, easy to build and implement.

U type sheet pile and its size calculation

U type pile is a new type of application support structure which has just started in recent years. Because U type cross-section of the structural design, not only can save material, but also to ensure its adequate bending performance and shear strength. However, due to the cross-sectional thickness of the pile structure is small, there is no connection between the pile and other issues, if you need to enter the pile will take a long construction time. At the same time, in the process of calculating the geometrical size of U type piles, it is necessary to select and design the pile type reasonably, and combine the actual situation of water dike project according to the size of supporting pile. Not only to meet the support requirements, but also give full play to its sealing effect, to achieve the sheet pile as a block pile type design effect, and maximize the U type piles used in water conservancy projects in the advantages. At the same time, the connection between the U type sheet pile and the pile needs to be sealed. In addition, if the mechanical calculation method according to the structure and bearing capacity, the bearing capacity calculation process is complex, the equivalent method required by the cross-sectional form rule. As the U type support pile is mainly subjected to the horizontal earth pressure and the opposite direction of the ring beam transfer, the U type pile will be subjected to bidirectional bending and shearing. From the analysis of the principle, the equivalent cross section of the U type plate pile should choose reasonable symmetrical cross section, and then ensure the application effect of U type plate pile in water dike.

U type sheet pile: water conservancy construction accomplish much

Anti-corrosion, strong stability, from the river crossed to the sea

U type sheet piles adopt a unique variable cross-section structure design, increase the section height, increase the cross-section resistance to bending moment, but also increase the cross-section width. From the analysis of structural mechanics principle, the stress characteristics and the I-shaped force characteristics are the same, have good bending resistance, and are widely used in inland river. As we all know, sea storms, corrosive seawater is strong, commonly used in offshore engineering embankment pile corrosion resistance is poor, and investment is higher than the precast concrete sheet pile. The design of U type precast concrete piles is taking into account the retaining, corrosion resistance, construction speed and other characteristics, both the characteristics of steel sheet pile, but also to overcome the corrosion of steel sheet pile problem, and stability, and can adapt to more complex Construction condition of sea area. U type sheet pile construction time is short, mechanized construction, significant savings in labor. It changes the traditional construction of water conservancy project, the construction speed is slow, the construction of high labor costs, after forming the quality of instability and other shortcomings, safe, beautiful, reliable and does not require post-maintenance. From the whole project quality, the factory mass production, the quality assurance system can effectively guarantee product quality.

Compared with the traditional method, U type sheet pile has obvious competitive power

In addition, U type sheet pile than the traditional riprap dam greatly saves the cost. Because of the geographical reasons, the stones used in the construction are all from Zhejiang, Jiangsu and other places around Shanghai. With the protection of ecological environment and the promotion of resource saving, Stones and other non-renewable resources to reduce the amount of exploitation, the price of natural rise. With the social development, other costs are also increasing year by year, only a human cost this year than last year increased by 40%, the traditional construction of the dam requires a lot of human resources, greatly increasing the project cost. Although the initial investment is not much difference, but the traditional method of construction cost is much higher than the overall construction cost of U type sheet pile, with the passage of time, gravel resources increasingly scarce, U type sheet pile cost advantage will Unmistakably.