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What is the steel casing tube?

2021-09-07 09:17:39

The steel casing tube is in the process of manual digging of piles. Due to the unstable soil, it is difficult to construct reinforced concrete walls. Therefore, steel protective walls are used to protect the piles to prevent the hole from collapsing and avoid affecting the construction progress and safety. The steel casing tube is a circular barrel with empty ends made of iron hoop according to the size of the hole pile.

The role of the steel casing tube can stabilize the hole wall and prevent the hole from collapsing. It can also isolate the surface water, guide the drill bit, fix the pile position, and protect the original ground.

The steel casing tube is generally 20-40cm larger than the pile diameter, and the embedding depth depends on the properties of the soil. The deviation of the plane position shall not be greater than 5cm, and the inclination shall be less than 1%.

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