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Projects such as ports and bridges may require the steel sheet piles to be installed permanently to prevent the backfill soil from collapsing during the structure’s design life. On the other hand, building construction projects involving basements and/or deep excavations will require temporary excavation supports as the concrete basement walls are constructed. WHAT ARE STEEL SHEET PILES USED FOR? Steel sheet piles are slender structural members of varying lengths and cross sections, that are connected using interlocks at each end of the panel to make a continuous wall. Sheet piles are usually installed as part of an earth-retaining structure for slope protection, and excavation protection. Marine structures such as jetties and quay walls use sheet pile walls to retain the backfill soil used for raising the finished floor level of the docking areas. Sheet piles also help in the mitigation of rapid groundwater seepage for these types of projects. For most engineering projects, steel shee

  While   metal tubes   can be formed into a variety of shapes, square and round tubes are two of the most common for a variety of applications.   But which shape is best when bending? Getting an answer isn't as simple as looking at the space where the tube will be installed or just considering what the tube will be used for. While shape is the obvious difference, there are some key factors to consider when deciding which tube style is best when bent and subsequently put into service.   Square tubing vs. Round: Which shape is best for bending? There are three important factors to consider when comparing square vs. round tubing. Manufacturing Force Formability Square tube Round Tube Although its shape does not lend itself to the impression of a tube, square tubing does perform better in some applications. Because of its flat surface, square tubing makes it easy to attach bolts and other objects to it. It can also be made to fit closer to nearby objects, thus reducing wasted space.