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J19JB/T7253941994-07-181995-07-01()11K23dBA2GB32411/11/3GB3785GB3947GB31027JJG176JJG18833.1GB3785101/11/3GB3241JJG188JJG1763.20.5dB1.0dB44.14.1.14.1.24.1.34.1.46~20mm4.24.31994-07-18JB/T7253941995-07-01()JB/T72539423dBK23dBK23dB6.2K23dB4.4I1I2I34.4.11I1I2I34.4.22I1I2I34.4.14.4.33I1I34.4.1I2D4.4.44I1I2DI3Lh(h)4.51~41000mm12JB/T7253943344.64.6.114330mm1~3H250mm330mm1~3H4.6.225330mm1235H250mm330mm1235H4.6.334330mm1~3H250mm330mm1~3H4.6.4451~4JB/T72539444.6.54.6.1,4.6.2,4.6.34.71000mm55.1A10s5.21/11/3160Hz10s160Hz30s5.3456m/s5.46dB1.0dB,K16.15.5S=4ab+bc+cadcbacba2+++++1a=dI+1212b=dI+2213c=I3+d4Sm2d1mI1I2I3m66.1K1dB)10dB11K1dBK166~81.08~100.5JB/T7253945100.06.2K2dB)K22K23dBK202K2dBV1/S22532405063801001251502002503004005006308001000a.3210b.ac3210c.32101Vm32Sm26.3K3dB)t=20p=100kPa5K3=10lg()100000273293pt×+5t——pPaK30.5dB6.4A10=PALlg[−∑=−]1011)(1.01NiKLiPAiNK2K36PALAdB(A);LPAiiAdB(A);K1iidB(A);K2dB(A);K3dB(A);NJB/T72539465dBPALPAL=[∑=−NiiPAiKLN11)(1]K2K376.510=PfLlg[−∑=−]1011)(1.01NiKLfiPfiNK2fK38PfLdB;LPfiidB;K1fiidB;K2fdB6.6ALWA=10+PALlg(0SS)9LWAAdB(A);PALAdB(A);Sm2;S01m26.7LWf=LPf+10lg()0SS10LWfdB;LPfdB77.1A7.28a.b.c.d.e.f.g.h.JB/T7253947ALWA=10lg∑=−max1)(1.010jjCLjWjLWjjCjjA11/1jmax=7,CjA1A1j1/1HzCjdB1125–16.12250–8.63500–3.241000052000+1.264000+1.078000–1.1A21/3jmax=21,CjA2A2j1/3HzCjdB1100–19.12125–16.03160–13.44200–10.95250–8.66315–6.67400–4.88500–3.29630–1.910800–0.811100001212500.61316001.01420001.21/11/3AJB/T7253948A2j1/3HzCjdB1525001.31631501.21740001.01850000.5196300–0.1208000–1.12110000–2.5JB/T7253949BB1B1DI=LPiLP3B1DILPidB;LPdBJB/T725394JB/T725394*2100044*88012301/163/418,000199511995115006.0094274