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锥形桩外形合理,集摩擦桩和端承桩两者的优点,使单位体积承载力提高05~25倍,基础工程造价降低40%~60%;锥形桩还减小土体冻胀性和融沉性,有利于基础的抗拔及稳定。其锥角以5°~15°之间较合理,地基土冻胀性高时采用大锥角桩,冻胀性低时采用小锥角桩。文中给出了承载力计算公式和与工程实际静载实验的差别及其处理方法
The shape of the tapered pile is reasonable. It combines the advantages of friction piles and end-bearing piles to increase the capacity per unit volume by 05~25 times and the construction cost of the foundation project by 40%~60%. Conical piles also reduce the amount of soil. Body frost swell and sinking are conducive to the basic pull-out and stability. The taper angle is reasonable between 5° and 15°. When the ground soil has high frost swellability, a large cone angle pile is used. When the frost swell is low, a small cone angle pile is used. The calculation formula of bearing capacity and the difference between the actual static load experiment and the treatment method are given in this paper.