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本文提出了锚杆必要长度的概念,并依据弹塑性变形量级的不同,建立了锚杆必要长度的近似估算公式。文中所给的算例表明,这一计算公式与数值解精度相当。
In this paper, the concept of the necessary length of the bolt is proposed, and an approximate formula for the necessary length of the bolt is established based on the difference in the magnitude of the elasto-plastic deformation. The examples given in the paper show that this formula is equivalent to the numerical solution.