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YaHei';margin:0px;color:#2E2E2E;text-decoration:none;font-size:16px;line-height:2.5;">提供經驗豐富的施工人員，水庫土工膜施工是防滲工程建設中關鍵的一環，實際上，一項出色的土工膜防滲工程，不僅需要施工人員理解設計意圖，而且還應從施工角度采取一些創造性的處理措施.</span><br style="margin:0px;" /> <span style="font-family:'Microsoft YaHei';margin:0px;color:#2E2E2E;text-decoration:none;font-size:16px;line-height:2.5;">土工膜的周邊錨著</span><br style="margin:0px;" /> <span style="font-family:'Microsoft YaHei';margin:0px;color:#2E2E2E;text-decoration:none;font-size:16px;line-height:2.5;">對于水頭較高、膜較厚或土工膜錨著附近部位可能發生較大位移的情況，膜與基巖或混凝土連接時，盡可能采用螺栓錨固，并在可能發生較大位移的相反方向留有膜與土體共同變形的余幅，如圖1所示，而不是如圖2所示的膜形成褶皺的型式，因為褶皺受壓后很難舒展，即使能展開，經過折疊的土工膜的拉伸強度和極限伸長率都會損失大半"云南以禮河一級水電站土壩防滲加固工程土工膜心墻與兩岸混凝土刺墻的連接即采用如圖1所示的型式</span> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <img onload="resize(this,700)" src="/upload/image/20160514/20160514171210_23870.jpg" style="margin:0px;cursor:pointer;padding:0px;" /> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;">土工膜的頂部連接</span><br style="margin:0px;" /> <span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;">土工膜用于堤壩上游面防滲，其頂端連接也很重要"若堤壩設防浪墻，則土工膜必須與防滲墻成阻水連接，圖3所示，土工膜錨固在防浪墻面上，并被護坡材料所覆蓋。圖4所示土工膜埋置在防浪墻底，膜與混凝土結合緊密，并有足夠的結合長度"若堤壩頂部未設防浪墻，則土工膜應在堤壩頂部構成頂封型式!</span> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <img onload="resize(this,700)" src="http://www.fangshuitan888.com/UploadFiles/2014-09/admin/2014091609414848505.jpg" style="margin:0px;cursor:pointer;padding:0px;" /> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;"> 圖3 土工膜錨著在防浪墻面上</span> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <img onload="resize(this,700)" src="/upload/image/20160514/20160514171512_82265.jpg" style="margin:0px;cursor:pointer;padding:0px;" /> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;"> 圖4 土工膜埋置在防浪墻底部</span> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;">上述3種土工膜頂部阻水連接型式，目的是防止波浪水流和降雨水流滲入膜與支持層之間的間隙，對土工膜穩定產生不利影響! 北京某水庫以土工膜鋪設在粉質粘土壩的上游面作為防滲體，為了防止膜后滲流沖刷粉質粘土壩面，未采用兩布一膜型復合土工膜直接鋪設于壩面，而選用一布一膜型復合土工膜鋪設在砂墊層上（膜與砂墊層接觸），盡管當地缺乏砂石料!這種考慮是細致和謹慎的。</span> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <strong style="margin:0px;"><span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;"><a href="http://www.370255.com/" target="_blank">土工膜廠家</a></span></strong><span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;">誠信，創新，值得信賴！</span> </p></div> <script> window._bd_share_config = { common : { bdText : '<p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;"><a href="http://www.370255.com/" target="_blank">土工膜廠家</a>專業供應水庫專用土工膜，</span><span style="font-family:'Microsoft YaHei';margin:0px;color:#2E2E2E;text-decoration:none;font-size:16px;line-height:2.5;">土工膜廠家</span><span style="font-family:'Microsoft YaHei';margin:0px;color:#2E2E2E;text-decoration:none;font-size:16px;line-height:2.5;">提供經驗豐富的施工人員，水庫土工膜施工是防滲工程建設中關鍵的一環，實際上，一項出色的土工膜防滲工程，不僅需要施工人員理解設計意圖，而且還應從施工角度采取一些創造性的處理措施.</span><br style="margin:0px;" /> <span style="font-family:'Microsoft YaHei';margin:0px;color:#2E2E2E;text-decoration:none;font-size:16px;line-height:2.5;">土工膜的周邊錨著</span><br style="margin:0px;" /> <span style="font-family:'Microsoft YaHei';margin:0px;color:#2E2E2E;text-decoration:none;font-size:16px;line-height:2.5;">對于水頭較高、膜較厚或土工膜錨著附近部位可能發生較大位移的情況，膜與基巖或混凝土連接時，盡可能采用螺栓錨固，并在可能發生較大位移的相反方向留有膜與土體共同變形的余幅，如圖1所示，而不是如圖2所示的膜形成褶皺的型式，因為褶皺受壓后很難舒展，即使能展開，經過折疊的土工膜的拉伸強度和極限伸長率都會損失大半"云南以禮河一級水電站土壩防滲加固工程土工膜心墻與兩岸混凝土刺墻的連接即采用如圖1所示的型式</span> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <img onload="resize(this,700)" src="/upload/image/20160514/20160514171210_23870.jpg" style="margin:0px;cursor:pointer;padding:0px;" /> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;">土工膜的頂部連接</span><br style="margin:0px;" /> <span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;">土工膜用于堤壩上游面防滲，其頂端連接也很重要"若堤壩設防浪墻，則土工膜必須與防滲墻成阻水連接，圖3所示，土工膜錨固在防浪墻面上，并被護坡材料所覆蓋。圖4所示土工膜埋置在防浪墻底，膜與混凝土結合緊密，并有足夠的結合長度"若堤壩頂部未設防浪墻，則土工膜應在堤壩頂部構成頂封型式!</span> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <img onload="resize(this,700)" src="http://www.fangshuitan888.com/UploadFiles/2014-09/admin/2014091609414848505.jpg" style="margin:0px;cursor:pointer;padding:0px;" /> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;"> 圖3 土工膜錨著在防浪墻面上</span> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <img onload="resize(this,700)" src="/upload/image/20160514/20160514171512_82265.jpg" style="margin:0px;cursor:pointer;padding:0px;" /> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;"> 圖4 土工膜埋置在防浪墻底部</span> </p> <p style="font-family:????, ????;margin-top:0px;margin-bottom:0px;padding:0px;border:0px;color:#2E2E2E;line-height:22px;white-space:normal;"> <span style="font-family:'Microsoft YaHei';font-size:16px;line-height:2.5;">上述3種土工膜頂部阻水連接型式，目的是防止波浪水流和降雨水流滲入膜與支持層之間的間隙，對土工膜穩定產生不利影響! 北京某水庫以土工膜鋪設在粉質粘土壩的上游面作為防滲體，為了防止膜后滲流沖刷粉質粘土壩面，未采用兩布一膜型復合土工膜直接鋪設于壩面，而選用一布一膜型復合土工膜鋪設在砂墊層上（膜與砂墊層接觸），盡管當地缺乏砂石料!這種考慮是細致和謹慎的。</span> </p> 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