三车道高速公路隧道单斜井双正洞施工通风技术.doc

1zk13+400-zk22+8809480mzk17+3531090m60o-11.615%88800mzk15+540zk19+7402jtg-f60D20092.120%2.230mg/m3co20.5%no25mg/m32.310%2mg/m310%4mg/m32.5282.60.15m/s0.25m/s3 16#6#211#2#45o44.14.2a=130m2 98.9m249.82m2g=300kg2.5m3ml=2300ml=1000mm=80t30min=1500mm=1.5%4.34.3.14.3.1.1q1=4km=31.2580=300m3/min 3D3m3/minkD1.151.251.25mD804.3.1.230qt30mingg=300kga130m2l100m=962m3/min4.3.1.3q3=60vs=600.15130=1170 m3/min vD 0.15m/ssD130m260Dmins4.3.1.4q4=8130.703=1707m3/min zl50d 158 474 zl50 154 462 clg888 231 693 zl50g 162 486 pc220 235 705 254 210 630qmax=maxq1q2q3q4=1707m3/min=1.5%q= qmax/1-l/100=1707/1-1.5%1000/100= 1985m3/min=119130m3/h4.3.1.5hhh=h+h+h h50pa h=lupqmax2g/s3=2880pa-=310-4kg.s2/m3l-1000muD?d=3.141.5=4.71 p-p=1/1-l/100=1.4157=1.5%qmax-1707m3/min28.45m3/sg-9.8m/s2sD?d2/4=1.766m2d-1.5m10%h=h10%=288pah=h+h+h=3218pa119130m3/h3218pa4.3.1.6sddy- 12.5a 105-135 4.36 1102 70-90 1.9502.65 402 53-69 1.151.16 202sddy-112.5a6000pah=3218pm3/h4.3.1.71 0.76600m3/min0.7=4620m3/minvi= 46206097.9=0.79m/svi=462026049.82=3.1m/s2 D0.990.60.91iD0.8mmliDdiDviDD1.2kg/m3 l d v i 21600 9.7 0.79m/s 0.093 13.5n/m2 1195 7.3 3.1m/s 0.11 109.6 n/m2 kD0.85vjD25m/sD=fj/fs=3.140.82/97.9=0.026 =fj/fs= 3.140.82/49.82=0.052fjDfsD97.9 49.82D=vs/vj=0.79/25=0.0316=vs/vj=1.4/25=0.056vsD0.79m/s 3.1m/spj=vj21-k=16 n/m2pj=vj21-k=31.3 n/m2 n=pc