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巷道断面尺寸计算表1、木支架梯形断面顺序单位1mm2mm3mm4mm5mm6mm7mm8mm9度10mm11mm12mm13mm14mm15mm16mm17m²18m²19m20m³21m³/秒钢轨型号hchbha24㎏/m36019017015~18320190130113001901102430014016015~1827014013011250140110使用地点平巷及10°以下斜巷10°以下斜巷及中间巷⊿-为达到坑木标准长度的附加长度;Vm-巷道允许通过的最高风速,米/秒m-棚腿插入底板的深度,一般采用250mm,d-坑木直径,hn-背板厚度,半圆木厚0-50mm平均25mm,x-背板密度系数,f<3时,X=1;f=4~6时,X=0.5;f≧8时,X=0。hc-轨面至巷道底板高度,hb-道渣面至底板高度,道渣面至轨面高度ha=hc-hba、c为轨道中心线到巷道两边的距离。按照标准设计,设备宽度边离巷道边300毫米,行人道距离740毫米。计算公式S2=h4*(B3+B4)/2p=B1+B2+2h2/sinaL=B1+2d+⊿V2=0.025(L+2xh2/sina)Q≤SVmB3=L+2hnB2=B+2(h+ha)*ctgaB4=B+2(h+hc)*ctga+2d+2hnS=h2*(B1+B2)/2h3′=h3+100h4=h3′+d+hna=80°L1=(h3+m+d/2)sina+⊿单轨B=a+c双轨B=a+b+cB1=B-2(h1-h)*ctga掘进断面积净周长每米巷道背板材料消耗量巷道允许通过的风量hh1h1′=h1+100h2=h1+hah2′=h2+100h3=h2+hb巷道顶梁处的净宽度顶梁长度巷道顶部的掘进宽度巷道道渣面处的净宽度巷道底板处的掘进宽度净断面积从底板起巷道沉实后的净高度从底板起巷道沉实前的净高度从底板起巷道的掘进高度棚腿的倾斜角腿木的斜长巷道的净宽度项目从轨面起电机车(矿车)高度从轨面起巷道沉实后的净高度从轨面起巷道沉实前的净高度从道碴面起巷道沉实后的净高度从道碴面起巷道沉实前的净高度梯形断面尺寸及支护参数计算表名称代号hh1h1′ha沉前净高h1′从轨面起115021002200130h2h2h2从道碴面2230h2′hb沉前净高h2′从道碴面2330190h3h3从底板起2420h3h3′dhn沉前净高h3′从底板起252020025h4掘进高度h4从底板起2745⊿a°sinam50$850.996150L1L12810设备边离巷道边安全人行道边安全距离设备(或设计)宽度设备高度30074017301150abc116514001605B单轨2770双轨4170B1B1B1ctgaB1260241700.088LLLL30524620B3B3B3B331024670B2B2B2B229964396B4B4=B+2(h+hc)*ctga+2d+2hnB4B4hcB434764876300SSS6.249.55S2S2S/S2S29.0313.100.69PPP10.04每米背板V2V2Xf<3f=4~6消耗量V2#######110.5VmVmVmVmm³/秒10864风桥主要进回采区进回采掘面QQQQm³/分3745299622471498单轨B=a+c双轨B=a+b+cBS2=h4*(B3+B4)/2m²L1L1=(h3+m+d/2)sina+⊿a、b、ca=设备宽度/2+300,双轨中心距b=设备安全间距+2×设备宽度/2=2×1100/2+400c=设备宽度/2+740B3=L+2hnB2=B+2(h+ha)*ctga道渣面处S=h2*(B1+B2)/2V2=0.025(L+2xh2/sina)Q沉后净高净宽度(设备高度位置)B1=B-2(h1-h)*ctgaL=B1+2d+⊿Q≤SVm巷道名称m³h2′=h2+100h3=h2+hbh3′=h3+100h4=h3′+d+hn底掘进宽度断面底净宽度公式顶掘进宽度腿柱斜长沉后净高断面上净宽度.=h1+100h2=h1+ha净周长许通风量允许通过风量巷道允许最高风速m净断面积p=B1+B2+2h2/sinam²掘进断面积顶梁长度木材支架坑木直径与每米巷道架棚数顶梁净宽坑木直径(米)毫米f=3f=4~6f=8~101.5~1.81601111.9~2.01601112.1~2.21801.5112.3~2.41801.51.512.5~2.618021.512.7~2.82002212.9~3.02002213.1~3.22002.521.53.3~3.42002.521.53.5~3.622032.51.53.7~3.822032.523.9~4.22203324.3~4.5220332每米巷道架棚数2、钢筋混凝土支架梯形断面顺序单位1mm2mm3mm4mm5mm6mm7度8mm9mm10mm11mm12mm13mm14mm15mmB4=B+2(h+hc)ctga+2he+2hn16mm17m²18m²19m20块21m³/秒x-背板密度系数,f≦3时,X=1;f=4~6时,X=0.5;f≧7~10时,根据具体情况确定。Vm-巷道允许通过的最高风速,米/秒he-棚、腿断面的高度bn-背板宽度hn-背板厚度m-棚腿插入底板的深度,一般采用100mm,不小于100mm为原则;⊿-为达到梁、腿标准长度的附加长度ha-顶梁断面的高度B4′=B4+100S=h2*(B1+B2)/2S2=h4′*(B3′+B4′)/2p=B1+B2+2h2/sinaN=L/bn+2h2*X/(bnsina)Q≤SVm单轨B=a+c双轨B=a+b+cB1=B-2*(h1-h)*ctgaB2=B+2*(h+ha)*ctgaL=B1+2he+⊿B3=L+2hnB3′=B3+100每米巷道背板块数巷道允许通过的风量hh1h2=h1+hah3=h2+hbh4=h3+ha+hnh4′=h4+50a=80°L1=(h3+m)/sina+⊿从轨面起电机车(矿车)高度从轨面起巷道的净高度从道碴面起巷道的净高度计算公式项目巷道顶梁处的净宽度巷道道渣面处的净宽度顶梁长度巷道顶部的设计掘进宽度巷道顶部的计算掘进宽度巷道底部的设计掘进宽度掘进断面积净周长从底板起巷道的净高度从底板起巷道的设计掘进高度从底板起巷道的计算掘进高度棚腿的倾斜角棚腿的斜长巷道的净宽度巷道底部的计算掘进宽度净断面积梯形钢筋混凝土支架构件规格、重量及材料消耗表构件断面(毫米)宽度高度混凝土米hahe㎏m³5号钢3号钢顶梁1.8100200900.0364.957.36顶梁1.9100200950.0386.289.08顶梁21002001000.046.539.53顶梁2.11002001050.0428.3111.59顶梁2.21002001100.0448.5312.23顶梁2.31002001150.04610.5214.8顶梁2.41002001200.04810.9115.25顶梁2.51002201650.06613.6619.06顶梁2.61202201720.06914.1419.63顶梁2.71202201780.07114.6120.15顶梁2.81202201850.07418.1223.93顶梁2.91202201920.07715.6821.58顶梁31202201980.07916.2622.43顶梁3.11202502330.09316.8923.35顶梁3.21202502400.09617.4924.24顶梁3.31202502480.09921.1428.82顶梁3.41202502550.10221.6529.31顶梁3.51202502630.10525.7534.36顶梁3.61202502700.10830.2939.151002001000.0457.351202001200.0485.057.471002001100.0445.518.121202001320.0535.578.261002001200.0486.028.881202001440.0586.099.041002001300.0526.479.511202001560.0626.549.681002001400.0568.4312.081202001680.0678.5312.251002001500.069.0512.971202001800.0729.1413.16构件重量22.22.42.62.8长度构件材料消耗钢筋(kg)构件名称棚腿棚腿棚腿棚腿棚腿棚腿3计算表梯形钢筋混凝土支架断面名称代号hh1ha(道渣)h2h2从道碴面11501700130h21830h3从底板起hbh3h31902020h4从底板起hnbnh4h425202175h4′h4′=h4+50从底板起h4′h4′2225L1L1=(h3+m)/sina+⊿asina⊿m800.98550100L12203安全距离安全距离设备宽度设备高度3007408801150B单轨B=a+c双轨B=a+b+cabcha74013001180200B单轨1920双轨3220B1B1B1ctgaB1172530250.177LL=B1+2he+⊿LLheL21753475200B3B3=L+2hn设计掘进B3B3B322253525计算掘宽B3′B3′=B3+100计算掘进2325B2B2B2B2道渣面处23983673B4B4=B+2(h+hc)*ctga+2he+2hnB4B4hcB4设计掘进28834183300计算掘宽B4′B4′=B4+100计算掘进2983SS=h2*(B1+B2)/2SSm²3.77S2S2=h4′*(B3′+B4′)/2S2S/S2S2m²5.910.64Pp=B1+B2+2h2/sinaPPm7.84每米巷道NN=L/bn+2h2*X/(bnsina)V2Xf<3f=4~6背板块数N块#######110.5QVmVmVmVmm³/秒10864风桥主要进回采区进回采掘面QQQQQQm³/分226418111358905公式净高度h2=h1+ha净高度h3=h2+hb设计掘高计算掘高棚腿斜长h4=h3+ha+hn顶梁净宽B1=B-2(h1-h)*ctga顶梁长度净宽度a=设备宽度/2+300c=设备宽度/2+740底掘进宽净断面积掘断面积净周长顶掘宽度净宽度B2=B+2(h+ha)*ctga许通风量Q≤SVm半圆拱形巷道断面尺寸计算公式1毫米2毫米3毫米4毫米5毫米6毫米7毫米8毫米9毫米10毫米11米²12米²13米14米³/秒Q≦SVm单轨B=a+c双轨B=a+b+cB1=B+2TB2=B1+2δS=B(0.39B+h2)S2=B2[0.39(B+2d0+2δ)+h3]P=2.57B+2h2S2=B2(0.39B2+h3)P=2.57B+2h2Q≦SVmhh1h2=h1+hah3=h2+hbh0=½BH1=h3+h0+d0H2=H1+δh0=½BH1=h3+h0+d0H2=H1+δ巷道的设计掘进高度B2=B1+2δS=B(0.39B+h2)巷道允许通过风量净周长掘进断面积净断面顺序单轨B=a+c双轨B=a+b+chh1h2=h1+hah3=h2+hb从轨面起巷道的壁高从道碴面起巷道的壁高从底板起巷道的壁高拱高巷道的计算掘进高度巷道的计算掘进宽度拱璧等厚拱璧不等厚从轨面起电机车(矿车)的高度计算公式单位项目巷道的净宽度巷道的设计掘进宽度B1=B+2T1米³2米³3米³米³米³米³米³米³6米³7米²54V4″=2(m1+m2+T+2δ)δ每米半圆拱形巷道掘砌工程量计算公式V=S2+V0Sn=1.57B+2h2V0=(m1+δ)(T+δ+e)+(m2+δ)(T+2δ)V0=(m1+m2+2δ)(T+2δ)V0=(m1+δ)(T+δ+e)+(m2+δ)(T+2δ)V0=(m1+m2+2δ)(T+2δ)V=S2+V0Sn=1.57B+2h2V1=1.57(B+T)TV2=2h3TV3=(m1+m2)T
本文标题:煤矿巷道断面尺寸计算表(全)
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