锚杆抗拔承载力计算excel

1、锚杆承载力计算,26-26孔号92,锚杆直径,锚杆周长Up,锚杆截面积Ap,壁厚（m),敞口面积Ap1,0.2,0.6280 ,0.0314 ,0.1,0.0000 ,示例,土层编号,土层名称,层底绝对标高(m),有效层厚li (m),侧阻力 fsi,li*fsi*Up,端阻力fp,孔口标高,35.990 ,混凝土强度和模量,钢筋强度和模量,桩顶标高,30.600 ,强度,fck,ftk,fc,ft,Ec,Ecf,强度,直径,fyk,fy,fy,Es,杂填土,32.590 ,0.00 ,0,0.00 ,类型,N/mm2,N/mm2,N/mm2,N/mm2,N/mm2,N/mm2,类型,N/mm

2、2,N/mm2,N/mm2,N/mm2,黏土,30.99 ,1.60 ,80,80.38 ,C15,10,1.27,7.2,0.91,22000,HPB235,820,235 ,210 ,210 ,210000 ,黏土,22.59 ,8.40 ,86,453.67 ,C20,13.4,1.54,9.6,1.1,25500,11000,HRB335,650,335 ,300 ,300 ,200000 ,C25,16.7,1.78,11.9,1.27,28000,12000,HRB400,650,400 ,360 ,360 ,200000 ,C30,20.1,2.01,14.3,1.43,3000

3、0,13000,RRB400,840,400 ,360 ,360 ,200000 ,C35,23.4,2.2,16.7,1.57,31500,14000,C40,26.8,2.39,19.1,1.71,32500,15000,C45,29.6,2.51,21.1,1.8,33500,15500,C50,32.4,2.64,23.1,1.89,34500,16000,C55,35.5,2.74,25.3,1.96,35500,16500,C60,38.5,2.85,27.5,2.04,36000,17000,C65,41.5,2.93,29.7,2.09,36500,17500,C70,44.5

4、,2.99,31.8,2.14,37000,18000,C75,47.4,3.05,33.8,2.18,37500,18500,C80,50.2,3.11,35.9,2.22,38000,19000,桩长l1=,10.00 ,合计,侧阻力,Rsk=,534 ,端阻力,Rpk=,0 ,竖向抗拔承载力标准值,公式5.3.8-1,267 ,kN,锚杆抗拔承载力特征值,267*0.7=186.9,取180,锚杆轴向拉力标准值Nak,Htk/cos=,180/cos0,180 ,kN,锚杆钢筋界面面积As,Kb*Nak/fy=,2.0*180*10/360,1000,mm,锚筋取3根22,As=1140 mm,锚杆锚固体与岩土层间的长度l2,K*Nak/（*D*frbk）=,2.4*180/(3.14*0.2*1000),0.69,m,锚杆杆体与锚固砂浆间的锚固长度