對U形(xing)波(bo)(bo)(bo)進行二(er)次擠(ji)壓,避開波(bo)(bo)(bo)谷的(de)(de)圓(yuan)角(jiao),首先擠(ji)壓與波(bo)(bo)(bo)谷相連(lian)(lian)的(de)(de)寬的(de)(de)位置,擠(ji)壓過程中波(bo)(bo)(bo)峰(feng)圓(yuan)角(jiao)與波(bo)(bo)(bo)谷圓(yuan)角(jiao)相連(lian)(lian)的(de)(de)部分在靠近波(bo)(bo)(bo)谷的(de)(de)一側逐(zhu)漸(jian)內凹(ao),形(xing)成(cheng)S形(xing)波(bo)(bo)(bo),此時波(bo)(bo)(bo)峰(feng)圓(yuan)角(jiao)有減小的(de)(de)趨勢,波(bo)(bo)(bo)紋外徑有升高的(de)(de)趨勢,終的(de)(de)波(bo)(bo)(bo)寬及(ji)波(bo)(bo)(bo)間距是由模具(ju)控制的(de)(de),此時得到是S形(xing)波(bo)(bo)(bo)。混凝土運送(song)車(che)輛(liang)要有保溫辦法,盡量縮短砼的(de)(de)運送(song)時刻。
參加金屬鋼波紋涵管施(shi)工(gong)(gong)(gong)人(ren)員(yuan)要(yao)(yao)熟(shu)知本(ben)工(gong)(gong)(gong)種(zhong)的安全操(cao)(cao)作規程(cheng),堅守崗(gang)位(wei)。特別工(gong)(gong)(gong)種(zhong)人(ren)員(yuan)如電工(gong)(gong)(gong)、電焊工(gong)(gong)(gong)、混凝土(tu)工(gong)(gong)(gong)、起(qi)重工(gong)(gong)(gong)等施(shi)工(gong)(gong)(gong)人(ren)員(yuan),有(you)必(bi)要(yao)(yao)通過專門訓練(lian),熟(shu)練(lian)掌握操(cao)(cao)作要(yao)(yao)求,嚴格執行(xing)本(ben)工(gong)(gong)(gong)種(zhong)的安全操(cao)(cao)作規程(cheng),有(you)必(bi)要(yao)(yao)隨(sui)身攜帶有(you)關證件(jian)(或(huo)復印件(jian))上(shang)崗(gang)備檢(jian)。
學習(xi)了(le)解一下鋼(gang)波紋涵管的安全操(cao)作規程(cheng)
添(tian)加砂、石料含水量(liang)檢測頻率,及時調(diao)整混凝土合作(zuo)比,確(que)保混凝土拌和(he)質量(liang)。各種電氣(qi)設備作(zuo)業(ye)和(he)漏電維護設備,不(bu)準隨意轉換裝(zhuang)置方法(fa),特別(bie)關于施作(zuo)業(ye)業(ye)的投(tou)光燈(deng),裝(zhuang)接(jie)作(zuo)業(ye),一(yi)點不(bu)準馬虎、一(yi)點點不(bu)能漏電,確(que)保安全。所有簡單碰(peng)(peng)砸的電氣(qi)設備加裝(zhuang)防(fang)護罩或遮欄,避免碰(peng)(peng)傷(shang)風險。
橋(qiao)梁(liang)鋼波紋管(guan)
應對金屬波紋(wen)涵管等(deng)加強掩蓋,避(bi)免銹(xiu)蝕。進行金屬波紋(wen)涵管銜接(jie)(jie)時(shi),應設暫時(shi)防(fang)雨棚,避(bi)免被雨水腐蝕。焊(han)接(jie)(jie)時(shi)環境溫(wen)度(du)應不低于-20℃,且應采納防(fang)雪、擋風(feng)等(deng)辦法,減(jian)少焊(han)件的(de)溫(wen)度(du)差。焊(han)接(jie)(jie)后的(de)接(jie)(jie)頭禁止當(dang)即觸摸冰雪。
混(hun)凝土澆(jiao)筑應挑選天氣晴(qing)好的日(ri)子,并確保(bao)降(jiang)溫前(qian)(qian)完結(jie),一起應進行保(bao)溫維(wei)護,在混(hun)凝土強度達到設計要求前(qian)(qian)不得(de)受凍。施工過程中(zhong),嚴格遵守(shou)操作規(gui)矩,謹防落物傷人及掉落事端。雨期施工應提早安排,盡量安排在降(jiang)雨降(jiang)臨前(qian)(qian)完結(jie),基坑周邊(bian)有防水設備(bei),避免周邊(bian)水流(liu)入基坑內。
電(dian)器有必要由專(zhuan)職電(dian)工裝置和(he)修補,設(she)置標志,禁止酒后施工。應特別注意做好供電(dian)線路維(wei)護,現場機(ji)電(dian)設(she)備(bei)的電(dian)閘箱應采(cai)納隱瞞、防(fang)潮辦法,電(dian)線做到絕緣杰出(chu)(chu),避免(mian)漏觸電(dian)事端發(fa)生。混凝土(tu)出(chu)(chu)機(ji)溫(wen)度(du)不宜低(di)于10℃,其運(yun)送(song)設(she)備(bei)應有保溫(wen)辦法,且應更大(da)極限地縮短運(yun)送(song)時刻,入模溫(wen)度(du)應不低(di)于5℃。
搭設(she)鋼波(bo)紋管施工(gong)(gong)(gong)支架(jia)要(yao)隨時查(cha)看支架(jia)的(de)安穩性,而且加固。支架(jia)完(wan)結后,要(yao)查(cha)看、驗算支架(jia)的(de)承力,滿(man)意承載(zai)要(yao)求(qiu)后再進行上(shang)部施工(gong)(gong)(gong)。雨(yu)期鋼波(bo)紋管施工(gong)(gong)(gong)辦(ban)法:開工(gong)(gong)(gong)前(qian)各(ge)種機具設(she)備有(you)必要(yao)進行檢(jian)修(xiu)、試運(yun)行,使之處于無(wu)缺、正常作業(ye)狀態(tai),并定(ding)時檢(jian)修(xiu)保養。
冬(dong)期拌(ban)和(he)(he)混(hun)凝土時應(ying)嚴格操控混(hun)凝土的合作比和(he)(he)坍落(luo)度,集(ji)料(liao)不得(de)帶有冰雪和(he)(he)凍住(zhu)團塊。投料(liao)前,應(ying)先選用熱水(shui)(shui)或蒸汽(qi)沖刷拌(ban)和(he)(he)機(ji)拌(ban)盤或鼓筒。加(jia)料(liao)順序應(ying)先為集(ji)料(liao)、水(shui)(shui),稍(shao)加(jia)拌(ban)和(he)(he)后再加(jia)入水(shui)(shui)泥,且拌(ban)和(he)(he)時刻應(ying)比常溫時延長(chang)50%。(hanihanbj.com)
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