Material inspection and appearance inspection are generally conducted to correct steel sheet piles that do not meet specifications, in order to reduce difficulties during the pile driving process.
(1) Appearance Inspection: Includes surface defects, length, width, thickness, end rectangular ratio, flatness, and lock shape, among other items.
Please note:
Weldments affecting the driving of steel sheet piles should be removed.
b. Reinforcement should be applied to holes and sections with defects.
c. If the sheet pile has severe rust, measure its actual cross-sectional thickness. In principle, an appearance quality check should be conducted on all sheet piles.
Material Inspection: Conduct tests on the chemical composition and mechanical properties of steel sheet pile parent material. This includes chemical composition analysis of steel, tensile and bending tests of components, girth weld strength tests, and elongation tests, among others. Each specification of steel sheet pile must undergo at least one tensile and bending test: steel sheet piles weighing between 20-50 tons should undergo two specimen tests.
Steel sheet piles are used for pile assembly and driving. The assembly of the piles is detailed in Figure 4. The joints of the pile assembly are tightly filled with oil mortar and cotton wadding. After the pile assembly is joined, a plywood is added every 4 to 5 meters to secure it for driving.
