一、壓實覆蓋物
及時收看天氣預報,根據預報風力大小采取合理的應對措施,是預防大風危害的基礎。一般來說,風力在5級以上就必須考慮棚室的防風工作,針對預報風力的大小和風向,提前對棚麵覆蓋物進行壓實。
二、棚邊有較高物體時要多設置壓膜繩
根據經驗,拱棚附近如果存在較高的物體,如房屋、shumudengdeng,dafenghuiyinzhexiewutidezudangerxingchengqixuanhuoluanliu,tebieshizhexiewutizaigongpengzhengnanfangxiangshi,huixuandeqiliubeizudanghouxiajiang,tongguopengnancefengxijiaoduodejinchukoujinrupengnei,zaochengpengneiqiyabuyizhi,kenenghuijiangpengmogupo。jianyifujinyougaodawutidegongpeng,yingzengjiayamoshengdeshuliang,bagongpengchurukoufengduyanmi,zuzhiqiliujinru。
三、兩側添加防風膜
對dui於yu拱gong棚peng的de防fang風feng,菜cai農nong可ke在zai拱gong棚peng的de東dong西xi兩liang側ce底di部bu各ge設she置zhi一yi塊kuai防fang風feng膜mo,防fang風feng膜mo的de寬kuan度du要yao能neng從cong拱gong棚peng一yi側ce的de地di下xia到dao最zui上shang部bu的de放fang風feng口kou為wei宜yi,例li如ru刮gua西xi風feng時shi,菜cai農nong將jiang西xi側ce的de防fang風feng膜mo架jia起qi,這zhe樣yang就jiu能neng避bi免mian大da風feng從cong拱gong棚peng西xi側ce的de放fang風feng口kou進jin入ru棚peng中zhong,防fang止zhi風feng大da刮gua破po棚peng膜mo。如ru果guo風feng力li超chao過guo6級,拱棚還要將背風一側的放風口打開,保證棚內氣流的排出,這樣防風效果更好。
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