鋼波紋管和(he)高強度螺栓、螺母,出廠(chang)前(qian)有必要進(jin)行熱鍍(du)鋅防腐(fu)處理。每走一批(pi)貨都查驗并附(fu)產(chan)品(pin)合格證。施(shi)工(gong)(gong)準備(bei)(bei)施(shi)工(gong)(gong)所需鋼波紋管(guan)由工(gong)(gong)廠(chang)規范化(hua)消費后運送施(shi)工(gong)(gong)現場(chang),間斷現場(chang)拼(pin)裝(zhuang),管(guan)節設備(bei)(bei)位終了后回(hui)填。整個(ge)流程包含:根底的開(kai)挖、現場(chang)的拼(pin)裝(zhuang)、回(hui)填三個(ge)階段。
Before leaving factory, it is necessary to carry out hot-dip galvanizing anti-corrosion treatment for steel bellows, high-strength bolts and nuts. Every shipment is inspected and attached with product certificate. The steel bellows required for construction preparation are transported to the construction site after standardized consumption by the factory, assembled intermittently on site, and backfilled after the end of pipe joint equipment position. The whole process includes three stages: excavation of foundation, assembly on site and backfilling.
因為卷好的金屬波紋涵管長度較長,體積較大,一般是工程單位向廠方提規格、數量,由廠方帶設備及材料到施工現場加工(gong)。這(zhe)樣既可大大減少(shao)波紋(wen)(wen)管的損耗(短(duan)頭、碰傷(shang)、銹蝕等),又能滿足需方的各項要求,并(bing)節約經費(fei)。金屬波紋(wen)(wen)管現場卷(juan)制好后。
應(ying)存(cun)放在千(qian)燥場所,下面用檔距為(wei)1.6m的(de)(de)木板多檔架空,上(shang)面掩蓋防雨油布等隱瞞物,堆(dui)積高度(du)不(bu)宜超越7m。與圓(yuan)管(guan)涵比較,波紋管(guan)涵的(de)(de)管(guan)側(ce)水平(ping)位移、撓度(du)和對(dui)路途的(de)(de)擾(rao)動小(xiao),有(you)利于維護(hu)路面。管(guan)內切向(xiang)與軸向(xiang)應(ying)力(li)應(ying)變以及撓度(du)和大等效應(ying)力(li)在恒載(zai)作用時隨填土高度(du)的(de)(de)增加有(you)呈線性(xing)增加的(de)(de)規(gui)則。
活(huo)載作用(yong)時隨填土的高度(du)增加逐漸(jian)減(jian)小;總體上切向(xiang)(xiang)應(ying)(ying)變(bian)力應(ying)(ying)變(bian)大值(zhi)大于軸向(xiang)(xiang)大值(zhi);管(guan)頂以切向(xiang)(xiang)應(ying)(ying)變(bian)為主。金屬波紋管(guan)在運送、裝(zhuang)卸過(guo)程(cheng)中(zhong),都(dou)要分外留(liu)神。不能翻(fan)滾或磕碰硬(ying)物,防止波紋管(guan)壁變(bian)形或損(sun)傷鍍(du)鋅層(ceng)。
鋼波(bo)紋(wen)(wen)管的運(yun)送(song)與(yu)設(she)備鋼波(bo)紋(wen)(wen)管通常選用工(gong)(gong)廠(chang)規范化消費,出廠(chang)時(shi)已間(jian)斷(duan)(duan)鍍鋅(xin)處置。用汽車(che)運(yun)送(song)工(gong)(gong)地后(hou),卸貨時(shi)不可(ke)直接(jie)翻拉,使用吊車(che)合作人工(gong)(gong)間(jian)斷(duan)(duan)裝(zhuang)卸,防止損壞鍍鋅(xin)層。操作關鍵運(yun)到工(gong)(gong)地后(hou),有必要每塊查看(kan)尺(chi)度,并從金屬(shu)波(bo)紋(wen)(wen)管中隨機抽(chou)取一(yi)片板(ban)件(jian)、高強螺栓。
然后進行尺度、防腐、強度等項目的查驗。查驗數據應滿足相關要求。施工放樣涵洞施工前要片面熟諳規劃文件和規劃技術交底,現場核對涵洞的立體位置和角度,如有成績及時提出,施工便道建筑結束并能滿足施工需求。//hanihanbj.com/
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