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">世界最大閘門!廣西大藤峽水利樞紐工程船閘閘門今日安裝</a> </div>  <div class="row"> <div class="news-nr-box"> <style> body .news-nr-box h1 { font-size: 18px; font-family: Airal; text-align: center; line-height: 25px; padding: 10px 0; margin: 0px; color: #333; } </style> <div class="news1-title"> <h1>世界最大閘門!廣西大藤峽水利樞紐工程船閘閘門今日安裝</h1> <h6> <span>2019-12-25</span> <span>　來自: <a href="index.php" title="齊協水工環保">齊協水工環保</a></span> <span style="margin-left:10px;">瀏覽次數:801</span> </h6> </div> <p>【解說】5月17日上午9時，世界最高船閘閘門——大藤峽水利樞紐船閘下閘首人字閘門啟動安裝。</p><p>【解說】大藤峽水利樞紐位于廣西最大最長的峽谷——大藤峽出口處。大藤峽水利樞紐總投資357.36億元，總工期9年，它集防洪、航運、發電、水資源配置、灌溉等綜合效益于一體，是珠江流域關鍵控制性水利樞紐，被喻為珠江上的“三峽工程”。</p><p style="text-align: center;"><img src="http://images/n100.jpg"/></p><p>【解說】大藤峽水利樞紐船閘布置在主壩左側，為單線單級船閘，由上游引航道、上閘首、閘室、下閘首和下游引航道組成。其中，下閘首人字閘門設計高度47.5米，比三峽船閘人字閘門還高出9米，單扇門葉門寬20.2米，面積相當于兩個半籃球場大小，單扇門葉重量達1295噸，下閘首單扇人字門共分12節，僅底節就重160噸，船閘規模、最大水頭、水力指標等均達到國內外已建船閘的最高水平，是名副其實的“天下第一門”。</p><p>【同期】(中國葛洲壩集團大藤峽船閘及副壩工程施工項目部機電金結安裝總工程師彭翰林)</p><p style="text-align: center;"><img src="http://images/n100.jpg"/></p><p>人字門安裝的最大的難點有幾處，一個是人字門的結構尺寸非常大，重量非常大，我們通過分節制造運輸，到達現場以后進行現場的組拼；二個是人字門的背拉桿，這個人字門的門葉高度達到了47米5，超過我們三峽38米5的這個尺寸，背拉桿的層數比較多，分三層，背拉桿的施工難度非常大，這一塊我們采用了一些有限元計算，包括我們定制了一些預應力張拉的工裝；第三個是人字門的支枕墊塊，就是(人字門)門軸柱、斜接柱鋼止水這一塊，因為鋼止水承擔了兩項功能：一個是承壓，二個是止水效果。鋼止水的配合精度非常高，因為門葉要在現場焊接，所以它有一個變形控制，導致了鋼止水我們不能先裝，要最后再裝。最后再裝的過程中，要在現場配裝定位，然后再進行鉆孔攻絲，最后鋼止水與門葉結構之間進行環氧灌注，增加它的抗壓強度。</p><p>【解說】為做好下閘首人字閘門設計、制造、運輸、安裝等系列工作，大藤峽公司組織參建各方攻堅克難，成功突破多項技術難題，確保工程建設順利推進。據了解，大藤峽水利樞紐船閘下閘首人字閘門預計將于2019年年底全部安裝完成。</p><div class="pro_keyword">關鍵詞： <a class="Themetxthover Themefont" href>水利閘門</a> <a class="Themetxthover Themefont" href>拍門</a> <a class="Themetxthover Themefont" href>啟閉機</a> <a class="Themetxthover Themefont" href>清污機和攔污柵</a> </div> </div> <div class="pager ks-clear"> <span class="iconfont1 iconjiantou newsjiantou-left" style="font-size: 32px!important;display: none;" ></span> <div class="previous fl"> <span style="padding-top: 5px;">上一條：</span> <a title="西津水利樞紐二線船閘工程門式起重機及工作閘門防撞警戒裝置設備采購招標" class="Themebg Themebghover" href="newsx.php?lm=19&id=21">西津水利樞紐二線船閘工程門式起重機及工作閘門防撞警戒裝置設備采購招標</a> </div> <span class="iconfont1 iconjiantou newsjiantou-right" style="font-size: 32px!important; 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