博远集团
Steel Casing
点击: 来源:未知 时间:2019-06-26
 In the process of performing rotary drilling, rotary drilling and punching and pouring piles, the steel casing can stabilize the hole wall, prevent the boring, and can also isolate the surface water, guide the drill bit, fix the pile position, and protect the original ground. Generally, it is 20-40cm larger than the pile diameter. The depth of the embedding depends on the nature of the soil. The deviation of the plane position should not exceed 5cm, and the inclination should be less than 1%.
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