岩土力学2012年第2期刊登了题为“预应力锚杆支护体系的锚杆抗拔力研究”[1]的文章(以下称之为原文)。《建筑基坑支护技术规程》[2]给出了摩擦型灌浆锚杆抗拔力的计算公式为Tuj=πDLajt(1)式中:Tuj为第j排锚杆的极限抗拔力;D为锚杆锚固体的直径;Laj为第j排锚杆的锚固段长度;t为锚固段周边砂浆与孔壁的平均抗剪强度。 Rock and Soil Mechanics, No.2, 2012, published an article entitled “Prestressed anchor supporting system of bolt pull-out” [1] article (hereinafter referred to as the original). [2] gives the calculation formula of the anti-pulling force of the grouting grouting anchor with the friction coefficient Tuj = πDLajt (1) where Tuj is the ultimate anti-pulling force of the jth bolt; D Is the diameter of the anchor; Laj is the length of the anchoring section of the jth row of anchors; and t is the average shear strength of the mortar and the walls of the perimeter of the anchoring section.