<p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">土工防滲膜施工是在薄膜的一側或兩側貼上土工布,形成復合土工防滲膜,其形式有</span></span><a href="https://www.zhihu.com/search?q=%E4%B8%80%E5%B8%83%E4%B8%80%E8%86%9C&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra={:,:2799442883}"><span style="text-decoration:underline;"><span style="font-family: Calibri;color: rgb(0, 0, 255)"><span style="font-family:宋體">一布一�</span></span></span></a><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">,二布一膜等�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">土工布作為土工膜的保護層,使保護防滲層不受損壞,為減�</span></span><a href="https://www.zhihu.com/search?q=%E7%B4%AB%E5%A4%96%E7%BA%BF%E7%85%A7%E5%B0%84&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra={:,:2799442883}"><span style="text-decoration:underline;"><span style="font-family: Calibri;color: rgb(0, 0, 255)"><span style="font-family:宋體">紫外線照�</span></span></span></a><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">,增加抗老化性能,盡量采用埋入法鋪設�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體"><img src="/public/uploads/images/20220803/655df89982106d45e46ebec618f06205.jpg" title="1.jpg" alt="" width="644" height="566"/></span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">施工中,先要用料徑較小的砂土或粘土找平基面,然后再鋪設土工膜,土工膜不要繃得太緊,兩端埋入土體部分呈波紋狀,之后在所鋪的土工膜上用細砂或粘土鋪一�</span>10cm<span style="font-family:宋體">左右過度層,砌上</span><span style="font-family:Calibri">20-30cm</span><span style="font-family:宋體">塊石</span><span style="font-family:Calibri">(</span><span style="font-family:宋體">或砼</span></span><a href="https://www.zhihu.com/search?q=%E9%A2%84%E5%88%B6%E5%9D%97&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra={:,:2799442883}"><span style="text-decoration:underline;"><span style="font-family: Calibri;color: rgb(0, 0, 255)"><span style="font-family:宋體">預制�</span></span></span></a><span style=";font-family:Calibri;font-size:16px">)<span style="font-family:宋體">作防沖保護層,施工時,應盡力避免石塊直接砸在土工膜上,盡量是邊鋪膜邊進行保護層的施工�</span></span><a href="https://www.zhihu.com/search?q=%E5%A4%8D%E5%90%88%E5%9C%9F%E5%B7%A5%E8%86%9C&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra={:,:2799442883}"><span style="text-decoration:underline;"><span style="font-family: Calibri;color: rgb(0, 0, 255)"><span style="font-family:宋體">復合土工�</span></span></span></a><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">與周邊結構物連接應采�</span></span><a href="https://www.zhihu.com/search?q=%E8%86%A8%E8%83%80%E8%9E%BA%E6%A0%93&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra={:,:2799442883}"><span style="text-decoration:underline;"><span style="font-family: Calibri;color: rgb(0, 0, 255)"><span style="font-family:宋體">膨脹螺栓</span></span></span></a><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">和鋼板壓條錨固,連接部位要涂�</span></span><a href="https://www.zhihu.com/search?q=%E4%B9%B3%E5%8C%96%E6%B2%A5%E9%9D%92&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra={:,:2799442883}"><span style="text-decoration:underline;"><span style="font-family: Calibri;color: rgb(0, 0, 255)"><span style="font-family:宋體">乳化瀝青</span></span></span></a><span style=";font-family:Calibri;font-size:16px">(<span style="font-family:宋體">�</span><span style="font-family:Calibri">2mm)</span><span style="font-family:宋體">粘接,土工布廠家以防該處發生滲漏�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">土工膜的接縫處理是一�</span></span><a href="https://www.zhihu.com/search?q=%E5%85%B3%E9%94%AE%E5%B7%A5%E5%BA%8F&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra={:,:2799442883}"><span style="text-decoration:underline;"><span style="font-family: Calibri;color: rgb(0, 0, 255)"><span style="font-family:宋體">關鍵工序</span></span></span></a><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">,直接影響防滲效果,一般接縫方式有�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:Calibri">�</span><span style="font-family:宋體">搭接:搭接寬度宜大于</span><span style="font-family:Calibri">15cm</span><span style="font-family:宋體">�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:Calibri">�</span><span style="font-family:宋體">熱焊:宜于稍厚的土工膜基材,焊縫搭接寬度不小�</span><span style="font-family:Calibri">5CM(</span><span style="font-family:宋體">不推薦膠接,長時間水浸泡易開膠,防滲效果�</span><span style="font-family:Calibri">)</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">根據多年實踐證明,防滲膜厚度不小�</span>0.25mm<span style="font-family:宋體">,太薄可能產生氣孔,且易在施工中受損而降低防滲效果,土工膜施工中,特別要注意做到鋪設不宜過緊,不得打皺,拼接要牢固�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體"><img src="/public/uploads/images/20240617/c7d1b41d7b17052a9ee04f52986780fa.jpg" title="1718614262346.jpg" alt="1718614262346.jpg" width="600" height="521"/></span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體"></span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">施工方法�</span></span></p><p><span style=";font-family:Calibri;font-size:16px">1<span style="font-family:宋體">,長絲或</span></span><a href="https://www.zhihu.com/search?q=%E7%9F%AD%E4%B8%9D%E5%9C%9F%E5%B7%A5%E5%B8%83&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra={:,:2799442883}"><span style="text-decoration:underline;"><span style="font-family: Calibri;color: rgb(0, 0, 255)"><span style="font-family:宋體">短絲土工�</span></span></span></a><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">的安裝通常用搭接,縫合和焊接幾種方法,縫合和焊接的寬度一般為</span>0.1m<span style="font-family:宋體">以上,搭接寬度一般為</span><span style="font-family:Calibri">0.2M</span><span style="font-family:宋體">以上,可能長期外露的土工布,則應焊接或縫合�</span></span></p><p><span style=";font-family:Calibri;font-size:16px">2<span style="font-family:宋體">,土工布的縫合�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">所有的縫合必須要連續進行</span>(<span style="font-family:宋體">例如,點縫是不允許的</span><span style="font-family:Calibri">)</span><span style="font-family:宋體">,在重疊之前,土工布必須重疊至少</span><span style="font-family:Calibri">150mm</span><span style="font-family:宋體">,縫針距離織�</span><span style="font-family:Calibri">(</span><span style="font-family:宋體">材料暴露的邊�</span><span style="font-family:Calibri">)</span><span style="font-family:宋體">至少�</span><span style="font-family:Calibri">25mm</span><span style="font-family:宋體">�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">縫好的土工布接縫最包括</span>1<span style="font-family:宋體">行又線鎖口鏈形縫法,用于縫合的線應為最小張力超�</span><span style="font-family:Calibri">60N</span><span style="font-family:宋體">的樹脂材料,并有與土工布相當或超</span></span><a href="https://www.zhihu.com/search?q=%E9%98%B2%E6%B8%97%E5%9C%9F%E5%B7%A5%E5%B8%83&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra={:,:2799442883}"><span style="text-decoration:underline;"><span style="font-family: Calibri;color: rgb(0, 0, 255)"><span style="font-family:宋體">防滲土工�</span></span></span></a><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">出的抗化學腐蝕和抗紫外線能力�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">任何在縫好的土工布上�</span><span style="font-family:Calibri">�</span><span style="font-family:宋體">漏針</span><span style="font-family:Calibri">�</span><span style="font-family:宋體">必須在受到影響的地方重新縫接�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">必須采取相應的措施避免在安裝后,土壤�</span></span><a href="https://www.zhihu.com/search?q=%E9%A2%97%E7%B2%92%E7%89%A9%E8%B4%A8&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra={:,:2799442883}"><span style="text-decoration:underline;"><span style="font-family: Calibri;color: rgb(0, 0, 255)"><span style="font-family:宋體">顆粒物質</span></span></span></a><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">或外來物質進入土工布層�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">布的搭接根據地形及使用功能可分為自然搭接,縫接或焊接�</span></span></p><p><span style=";font-family:Calibri;font-size:16px">3<span style="font-family:宋體">,在施工中,土工膜上面的土工布采用自然搭接,土工膜上層土工布采用縫接或熱風焊接,熱風焊接是首先的</span></span><a href="https://www.zhihu.com/search?q=%E9%95%BF%E4%B8%9D%E5%9C%9F%E5%B7%A5%E5%B8%83&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra={:,:2799442883}"><span style="text-decoration:underline;"><span style="font-family: Calibri;color: rgb(0, 0, 255)"><span style="font-family:宋體">長絲土工�</span></span></span></a><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">的連接方法,即用熱風槍對兩片布的連接瞬間高溫加熱,使其部分達到融熔狀態,并立即使用一定的外力使其牢牢地粘合在一起,在潮�</span>(<span style="font-family:宋體">雨雪�</span><span style="font-family:Calibri">)</span><span style="font-family:宋體">天氣不能進行熱粘連接的情況下,土工布應采取另一方法一縫合連接法,即用專用縫紉機進行雙線縫合連接,且采用防化學紫外線的縫合線�</span></span></p><p><span style=";font-family:Calibri;font-size:16px"><span style="font-family:宋體">縫合時寬�</span><span style="font-family:Calibri">�10cm</span><span style="font-family:宋體">,自然搭接時寬度</span><span style="font-family:Calibri">�20cm</span><span style="font-family:宋體">,熱風焊接時寬度</span><span style="font-family:Calibri">�20cm</span><span style="font-family:宋體">�</span></span></p><p><span style=";font-family:Calibri;font-size:16px">4<span style="font-family:宋體">,對于縫接,要采用質量與土工布相同的縫合線,縫合線要采用抗化學破壞和紫外光照射能力更強的材質�</span></span></p><p><span style=";font-family:Calibri;font-size:14px">5<span style="font-family:宋體">,膜上下兩層土工布在有錨固槽的部位都應與土工膜一同埋入錨固槽內�</span></span></p><p><br/></p>