鋼(gang)波紋(wen)涵(han)管(guan)(guan)路堤法的工藝流程為:施工前準備(bei)—施工放樣(yang)—設置(zhi)圍堰(yan)—排水(shui)(shui)清淤—平整場(chang)(chang)地(di)—檢(jian)測(ce)壓(ya)實(shi)度、含(han)水(shui)(shui)量(liang)等—水(shui)(shui)準測(ce)量(liang)—平整場(chang)(chang)地(di)—基礎(chu)分層回填(tian)(tian)—檢(jian)測(ce)壓(ya)實(shi)度含(han)水(shui)(shui)量(liang)等—水(shui)(shui)準測(ce)量(liang)—平整場(chang)(chang)地(di)—施工方樣(yang)—拼裝(zhuang)管(guan)(guan)節—檢(jian)測(ce)密水(shui)(shui)情況及管(guan)(guan)底(di)縱坡—檢(jian)測(ce)并(bing)補救(jiu)防腐涂層—涵(han)管(guan)(guan)就位——兩側分層回填(tian)(tian)—檢(jian)測(ce)壓(ya)實(shi)度、含(han)水(shui)(shui)量(liang)等—進出口處理。
鋼波紋涵管在2019年的(de)工作重點(dian)在哪里?
涵洞施(shi)工(gong)(gong)前應根據具體(ti)情況修筑相應長度的施(shi)工(gong)(gong)便道,并合理組織過往車輛(liang)。涵洞施(shi)工(gong)(gong)前必須對到現場(chang)的涵管節及其(qi)附屬配(pei)件進行檢(jian)測,一方面檢(jian)測其(qi)結構尺寸是否滿(man)足(zu)要求,另一方面檢(jian)測其(qi)表面防腐是否達(da)到要求;必要時須在鍍鋅涂層表面在增涂瀝青或其(qi)他防腐材(cai)料。
鋼波紋涵管反(fan)開槽(cao)回(hui)填法(fa)涵(han)洞施工(gong)前備齊(qi)所需材(cai)料。涵(han)洞施工(gong)前應準備涵(han)洞施工(gong)過程(cheng)中試驗。檢測儀器和(he)設備,落實試驗人員。金屬波紋涵(han)管路堤法(fa)涵(han)洞施工(gong)前施工(gong)單位需要通知監理及相關人員到場(chang),并(bing)按程(cheng)序辦(ban)理施工(gong)前的手續。
涵管(guan)施工(gong)前(qian)應設一名管(guan)道安裝指揮人員(yuan),負責(ze)指揮吊裝及施工(gong)人員(yuan)的現場操作;設置(zhi)1~2名技(ji)術(shu)人員(yuan)負責(ze)放線。涵管(guan)安置(zhi)等控制關鍵技(ji)術(shu);同(tong)時配置(zhi)適當的輔(fu)助人員(yuan)。涵洞施工(gong)前(qian)應備(bei)齊所(suo)需的機械設備(bei)及相(xiang)關工(gong)具,反開槽回(hui)填法的工(gong)藝流程為。
鋼波紋涵(han)(han)管洞(dong)施(shi)工(gong)工(gong)藝流(liu)程可分為(wei)(wei)路堤法和反開(kai)槽回(hui)填法,由于后(hou)者(zhe)涵(han)(han)洞(dong)的施(shi)工(gong)多(duo)(duo)在路基施(shi)工(gong)結(jie)束后(hou)和改(gai)建涵(han)(han)洞(dong),所(suo)以不影響路基施(shi)工(gong)整體進度,一般后(hou)者(zhe)較為(wei)(wei)多(duo)(duo)見。盡(jin)管在外力上(shang)二者(zhe)存在一定(ding)的差異,但施(shi)工(gong)工(gong)藝相差不大。下(xia)面分別予(yu)以敘述。
鐵路鋼波(bo)紋涵管
施工(gong)(gong)(gong)前準備—施工(gong)(gong)(gong)放樣—開挖涵管及(ji)施工(gong)(gong)(gong)現場(chang)—平整(zheng)場(chang)地—檢(jian)測(ce)(ce)壓(ya)(ya)實(shi)度—含(han)水(shui)量等(deng)(deng)—水(shui)準測(ce)(ce)量—基礎分層(ceng)回(hui)填—檢(jian)測(ce)(ce)壓(ya)(ya)實(shi)度、含(han)水(shui)量等(deng)(deng)—水(shui)準測(ce)(ce)量—平整(zheng)場(chang)地—施工(gong)(gong)(gong)放樣—拼(pin)裝管節(jie)—檢(jian)測(ce)(ce)密水(shui)情況(kuang)及(ji)管底縱坡—檢(jian)測(ce)(ce)并補防(fang)腐涂(tu)層(ceng)—涵管就位—兩側分層(ceng)回(hui)填—檢(jian)測(ce)(ce)壓(ya)(ya)實(shi)度、含(han)水(shui)量等(deng)(deng)—管頂分層(ceng)回(hui)填——檢(jian)測(ce)(ce)壓(ya)(ya)實(shi)度、含(han)水(shui)量等(deng)(deng)—進出口(kou)處理。(hanihanbj.com)
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