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class="col-xs-12 col-sm-8 col-md-9" style="float:right"> <div id="4c0q2k0imcc" class="list_box"> <h2 class="left_h2">文章中心</h2> <div id="4c0q2k0imcc" class="contents"> <h1 class="contents_title">橡膠壩工程修補維護修理</h1> <div align="center"> </div> <p style="text-indent:2em;"> 橡膠壩的經(jīng)常性維護和定期修理范圍為：橡膠壩壩袋、錨固裝置、充排系統、機泵設備、土建工程及其他附屬設施等。維護修理的原則是：經(jīng)常養護隨時(shí)維修，養重于修，修重于建。根據檢查與觀(guān)測，發(fā)現工程運行不正?，F象，應及時(shí)采取措施進(jìn)行處理。如發(fā)生事故，應立即上報主管部門(mén)j同時(shí)采取必要的措施，防止事故擴大，減少損失。<br /> 一、工程維護修理類(lèi)別<br /> 橡膠壩工程養護修理工作可分為養護、歲修、搶修和大修，其劃分原則應符合下列規定：<br /> (1)維護。對經(jīng)常檢查發(fā)現的缺陷和問(wèn)題，應及時(shí)進(jìn)行保養和局部修補，保持工程和設備完整清潔，操作靈活。<br /> (2)歲修。根據汛后全面檢查發(fā)現的缺陷和問(wèn)題，應對工程設施進(jìn)行必要的整修和局部改善。<br /> (3)搶修。當橡膠壩工程及設備遭受損壞，如壩袋破損、刺洞而漏水（氣）時(shí)，必須立即采取搶修措施。<br /> (4)大修。當工程發(fā)生較大損壞或設備老化，修復工程量大，技術(shù)較復雜時(shí)，應有計劃地進(jìn)行工程整修或設備更新。<br /> 二、橡膠壩工程維護<br /> 橡膠壩工程的維護主要包括壩袋、錨固件、充排設備和土建工程等四部分。<br /> 壩袋的老化和使用壽命<br /> 橡膠壩壩袋使用壽命與不同氣候、使用條件、受力狀況以及壩袋的制造質(zhì)量、厚度等因素有關(guān)。幾十年來(lái)，經(jīng)原化學(xué)工業(yè)部合成材料老化研究所的試驗研究和我國橡膠壩工程的實(shí)踐總結，可得以下結論：<br /> (1)大氣的老化。在我國選擇具有代表性的五種不同氣候地區進(jìn)行了壩袋老化情況的試驗，其中海南島屬于濕熱帶氣候地區，廣州屬于亞熱帶地區，漢口屬于內陸亞熱帶氣候地區，北京屬于暖溫帶氣候地區，哈爾濱屬于寒溫帶氣候地區。試驗表明，壩袋在不同氣候地區使用，老化速度不同，使用壽命也不同。在濕熱氣候條件下，老化速度較快；寒冷氣候條件下，老化速度較慢。<br /> (2)戶(hù)外曝露和戶(hù)外浸水的老化。試樣分別置于戶(hù)外的曝露架上和浸入盛滿(mǎn)水的玻璃箱中日夜曝露。大氣曝露的耐老化性能較好，其強度仍保持在80%以上；浸水的強度下降較快；干濕交替變化的下降最快。如北京右安門(mén)橡膠壩分別于1977年和1984年大修時(shí)，在壩袋的不同部位（壩袋經(jīng)常曝曬的部位，水下部位，時(shí)干時(shí)濕部位）取樣測試，其強度仍保持在70%以上（其中曝曬為90%，水下75%，時(shí)干時(shí)濕71%）。<br /> (3)變形狀態(tài)下的老化。壩袋在使用時(shí)充脹變形，試驗膠片以拉伸20%、40%、60%、80%、100%和彎曲180’等6種變形狀態(tài)下進(jìn)行試樣性能比較，結構是拉伸越大，老化越快。<br /> (4)不同厚度試樣的老化。采取辱度為0.5mm、1mm和2mm三種，在拉伸20%條件下試驗，結果是壩袋厚度越小，老化越快。<br /> (5)壩袋老化過(guò)程的觀(guān)察。老化主要表現在壩袋表面橡膠層發(fā)生粉化、龜裂、膨脹、起泡、脫層、破裂等現象：．其中帆布層發(fā)生永久變形、脆化、破爛等現象。<br /> (6)壩袋膠布使用壽命的估算。壩袋在蜜際繁用耐．使其老化的因素有光、熱、氧、臭氧、水和應力等，但是最主要的因素是拉應力下的臭氧作用。采用人工加速臭氧老化方法．推得壩袋膠布的使用壽命約為13～25年；統計我國巳建橡膠壩工程，壩袋使用壽命一般為15—20年。 </p> <p style="text-indent:2em;"> (7)涂刷耐老化的涂料。在壩袋表面上涂刷l耐老化涂料，是堿緩壩袋老化速度，延長(cháng)壩袋使用奇命的一項防老化措施。 </p> </div> <div id="4c0q2k0imcc" class="point"> <span id="4c0q2k0imcc" class="to_prev col-xs-12 col-sm-6 col-md-6">上一個(gè)問(wèn)題：<a href="/faq/329.html" title="怎樣解決橡膠壩的磨損難題?">怎樣解決橡膠壩的磨損難題?</a></span> <span id="4c0q2k0imcc" class="to_next col-xs-12 col-sm-6 col-md-6">下一個(gè)問(wèn)題：<a href="/faq/327.html" title="橡膠壩的材質(zhì)有哪些優(yōu)勢?">橡膠壩的材質(zhì)有哪些優(yōu)勢?</a></span> </div> </div> </div>  <div id="4c0q2k0imcc" class="col-xs-12 col-sm-4 col-md-3"> <div id="4c0q2k0imcc" class="left_nav" id="categories"> <h2 class="left_h2">產(chǎn)品列表</h2> <ul class="left_nav_ul" id="firstpane"> <li> <a href="/xiangjiaoba.html" title="橡膠壩">橡膠壩</a></li> <li> <a href="/yiyoufangzhixilie.html" title="溢油防治系列">溢油防治系列</a></li> <li> <a href="/qidunba.html" title="氣盾壩">氣盾壩</a></li> <li> <a href="/gangbanzha.html" title="鋼板閘">鋼板閘</a></li> </ul> </div> <div id="4c0q2k0imcc" class="index_contact"> <h2 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