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id="rvrvdfzlxx" class="about1_1_2"> <p style="color: #000;font-weight: 600;"> 絞吸式挖泥船</p><p> ? 帶鉸刀頭的機(jī)械臂放入水中，在水下吸取淤泥時攪動了淤積物，部分懸浮物從側(cè)面向水體擴(kuò)散造成二次污染</p><p> ? 擾動了疏浚土體，將上部浮泥（或流泥）與下層底泥（或原狀土）絞混在一起，使得浚后底泥表層中的營養(yǎng)鹽或重金屬的含量仍然偏高</p><p> ? 用絞吸式挖泥船進(jìn)行清淤施工，通常的排泥濃度是水下方的10～15％，但由于浮泥（或流泥）厚度遠(yuǎn)小于絞刀的直徑，因此，排泥濃度會更低，排泥所</p><p> 產(chǎn)生的余水量極大，需要的排泥場規(guī)模也極大，工期延長，工程投資同步增大</p><p><img src="/uploads/180816/1-1PQ6104212326.jpg" style="height: 100%; width: 100%;"/></p><p style="color: #000;font-weight: 600;"> 抓斗式挖泥船</p><p> ? 施工中難以抓起水底浮泥（或流泥）</p><p> ? 大多數(shù)的上層浮泥（或流泥）會從抓斗縫隙間或上部溢出流向水中，造成二次污染</p><p> ? 擾動浮泥層消耗水中可溶氧，導(dǎo)致水體發(fā)渾、魚蝦死亡</p><p> ? 浚后底泥中仍然留有大量的營養(yǎng)鹽或重金屬，清淤效果差</p><p> ? 當(dāng)泥駁將疏浚土運(yùn)至排泥場，需用水力沖挖機(jī)將淤泥吹至排泥場，其最終的排泥濃度類似絞吸式挖泥船，濃度較低，要求的排泥場規(guī)模也隨之增大，工</p><p> 期延長，工程投資增加</p><p><img src="/uploads/180816/1-1PQ6103930O7.jpg" style="height: 100%; width: 100%;"/></p><p style="color: #000;font-weight: 600;"> 海辰華氣動吸泥泵疏浚系統(tǒng)的優(yōu)勢</p><p><img 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