??????????????????????????-韦德1946

??????????????????????????????????????????????????:1?????????????????????????????,????????2.??????,????????,????????3.?????????????????????,????????4.?????????,?????????,???????????????,??????????????:??????,?????????,????????,??????

??????????????????,?????????????????????????????????

1. ????,??????---???????,?????????v??????????u??????????c?????

?????v????????(dv20*37*1.0/3m) ??dc50*19*0 .5 ??dl20*27*20*0.4

????,????????v?????,????????????,????,???????????,???????,????????????,????????????,?????????????,????????

????u?????

(du50*15*1.2/3m) ??dc50*19*0 .5 ??dl20*27*20*0.4

??????,????????,??????800n?????,???????????,??????????????????,???????,?????????,??????,???????

• ????c?????

????( dc60*27*0.6) ????dc60*27*0.6 ??du28*27*0.5

??????,??????,???????????800n??,???????,????????????

????????,?????????,??????????????:

??????????????gb/t2518-2004??,????????100g/?

??????????1.0,??????0.5

????????????????1.5mm/m

2??????

???????

???????(??en520?h3)

???????(??en520?h2)

?????????(??en520?h1)

???????

???????????????,?????,?????????????fgd???????

????:‘???-??????????,?????????????????????,???????????????????????????????????????,????,????????,?????,???????,???????10%,?????????????????????????????????’

????????????,?????????????,??????????????????,???????,?????

???:????????????????????????????????,??????????,?????????????????????????p2o5???????????????????????????????????????,?????????,????????????????????????????????,????????????

3?????

• ???:??????,?????(?????),?????300mm,20kg/?

• ???:??????,?????????,????,??????????,????????,20kg/?

• ????:???????????,????????,??50mm???0.5

• ??????:???????????,???????,??50mm???????0.5

• ?????:???????,?????????,dl31*31*0.4

  ???? :???????,??????,????48?????
  

???????????????????,??????????,???????,????????,????????????????????????

?????????????

1????????????

?10m*10m?????,??????????d,??????????

?????????????300mm,????????1200mm(???????????900mm,????????750mm)????????,???????????????,????????????

????????????????????,??????????????,????????????(0.4???)1/2d?????

• ?????????,???????

2.?????????

????????,?????????????????

?????????????,?????????????,????????????

????????,???????500mm,?????????,???????27mm????????,???????????,????????????????,?????????