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J17JB/T566419911991-08-141992-07-0111v20m/s2GB3480GB3481GB6404GB8543GB1009533.1113.23.2.11231991-08-14JB/T566419911992-07-01JB/T566419912aA–Ab1JB/T566419913233.2.2a.S(mm)mn(mm)MM=S/mn)22%Mv10m/sv10~20m/s403030201510b.GB3480SF[SFmin]1SF[SFmin]3JB/T5664199143[SFmin]11.21.4aba3.33.3.14ab43.3.2a.20%20%44JB/T5664199154%v10m/sv10~20m/s55203020404035305030252050201510GB10095b.bHH=W1686dibiT′+)1(1N/mm22dW1mmT1Nmmii=z2/z1bmmb=hS)1(α−3Smm2hmmH[H][H]N/mm2[H]=2HBN/mm24[H]=18HRCN/mm25HBHRCab3.43.4.15JB/T566419916ab45HRCAB53.4.23.53.5.16ab63.5.25JB/T5664199175%v10m/sv10~20m/s3015201020103.63.6.178ab7JB/T56641991883.6.220%3.73.7.191011129m=8mm4510JB/T566419919abc11JB/T5664199110abc12JB/T56641991113.7.2661/41/61/51/81/31/4JB/T5664199112AA1A2Nd10dBNd=10lg(NP)dBA1PWNN=10010/PANLWA2N0N0=10–12WLPAdB(A)GB6404A3vRvR1.6AB3600r/minCDEA1JB/T5664199113BB1B2B3B3.10.02mmSShB1SB1S=S–SmmB1fB3.20.02mmSShB2S=S–SmmB2B3.3B4B4.1B4.1.1B4.1.2B4.2B4.34%B1B2B5JB/T5664199114B6GB6404B7–GB8543JB/T56641991JB/T56641991*2100044*88012301/1618126,00019911219911200.00110001.800109