色综合久久88色综合天天_韩日美无码精品无码_插一插射一射视频_国产情侣久久久久aⅴ免费

衡水(shui)浩(hao)威新材料有限(xian)公司(si)主營(ying)產品(pin):鋼波(bo)紋管(guan)、鋼波(bo)紋涵(han)管(guan)

萊蕪鋼波紋涵管在填筑過程中不能絲毫馬虎

瀏覽:15893 發布(bu)日(ri)期:2019-03-05

各種電(dian)氣設備運轉(zhuan)和(he)漏(lou)電(dian)保護裝(zhuang)置,不(bu)準隨意改換(huan)安裝(zhuang)方式,尤其對于施(shi)工(gong)作業(ye)的投光(guang)燈(deng),裝(zhuang)接工(gong)作,一點不(bu)準馬虎、絲(si)毫不(bu)能漏(lou)電(dian),確保安全。所有容易碰砸的電(dian)氣設備加裝(zhuang)防護罩或遮(zhe)欄,防止碰傷危險。鋼波紋涵管頂部填土每層厚15cm,壓實度應滿足(zu)規范要求。

鋼波紋涵管在填筑(zhu)過(guo)程(cheng)中不(bu)能(neng)絲毫馬虎

靠(kao)近管體周圍50cm范(fan)圍內,不允許有大(da)于50mm的石(shi)塊(kuai)、混凝土塊(kuai)或(huo)其他有害腐蝕材料。填(tian)筑時(shi)應分層填(tian)筑、分層壓(ya)實,每層壓(ya)實厚(hou)度(du)為15cm,壓(ya)實度(du)要(yao)求(qiu)達到設計要(yao)求(qiu)后(hou)方可進(jin)行下一層填(tian)筑。填(tian)筑必(bi)須在波紋涵(han)管兩(liang)側(ce)對稱(cheng)同步(bu)進(jin)行,兩(liang)側(ce)的回(hui)填(tian)土高差不得大(da)于15cm。

對于有兩(liang)端擋(dang)墻的涵(han)洞,回(hui)(hui)填(tian)應從兩(liang)端向結構中(zhong)心進行。如果(guo)因(yin)偏土(tu)壓(ya)造成(cheng)鋼波(bo)紋涵(han)管(guan)變形的,應修正截面尺寸(cun)后(hou)重新壓(ya)實(shi)。波(bo)紋涵(han)管(guan)兩(liang)側及(ji)頂部100cm范圍(wei)內(nei)的回(hui)(hui)填(tian)及(ji)壓(ya)實(shi)度(du)(du)要(yao)求,應按照(zhao)設(she)計文件《橋頭路(lu)基(ji)處理(li)設(she)計圖(三(san))》圖中(zhong)涵(han)洞兩(liang)側回(hui)(hui)填(tian)土(tu)壓(ya)實(shi)度(du)(du)要(yao)求執行,當涵(han)頂填(tian)土(tu)厚度(du)(du)超過100cm時,填(tian)土(tu)壓(ya)實(shi)度(du)(du)與同一標高路(lu)基(ji)壓(ya)實(shi)度(du)(du)要(yao)求相(xiang)同。

鐵路鋼波紋管

鐵路鋼波紋管

如截面變形(xing)(xing)量(liang)超過(guo)變形(xing)(xing)范圍(wei),應(ying)立即終止施(shi)工,查(cha)明原因(yin),采(cai)取(qu)相應(ying)措施(shi)將變形(xing)(xing)量(liang)控制在(zai)標準要求(qiu)(qiu)范圍(wei)內。波紋涵管兩側及頂部的(de)部位(wei)回(hui)填按(an)照設(she)計文件要求(qiu)(qiu)采(cai)用(yong)礫類土(tu)(tu)回(hui)填,管頂填土(tu)(tu)應(ying)在(zai)管兩側保(bao)持對(dui)稱均勻、分層攤鋪、逐層壓實。開工前各種機具設(she)備必須進行(xing)檢修、試運(yun)行(xing),使之處于完好(hao)、正(zheng)常運(yun)轉狀態,并定期檢修保(bao)養。電(dian)器必須由專職電(dian)工安裝和修理,設(she)置標志,嚴禁酒后(hou)施(shi)工。

施工過程中(zhong),嚴格遵守操(cao)作規則,嚴防落物傷(shang)人及墜落事(shi)故。波紋涵管頂(ding)部及兩側20m范圍內不允許使用(yong)機(ji)械進(jin)行強夯(hang),洞身兩側應用(yong)人工或小型機(ji)具對稱(cheng)夯(hang)填(tian)(tian),待填(tian)(tian)方高出涵頂(ding)1米時(shi),可采用(yong)機(ji)械填(tian)(tian)筑。在完成回填(tian)(tian)之后(hou),終(zhong)截面尺寸(cun)與組(zu)裝時(shi)的尺寸(cun)差異更大不得超過2%。

具體施(shi)工(gong)(gong)技術要(yao)求(qiu)可參閱《公路路基(ji)設計規范》和《公路路基(ji)施(shi)工(gong)(gong)技術規范》。搭設金屬(shu)波紋涵管(guan)施(shi)工(gong)(gong)支(zhi)架要(yao)隨時檢(jian)查支(zhi)架的穩定(ding)性,并且加固。支(zhi)架完成(cheng)后,要(yao)檢(jian)查、驗算支(zhi)架的承力,滿足承載要(yao)求(qiu)后再(zai)進行上部施(shi)工(gong)(gong)。

波紋涵管管底兩(liang)側模形部位(wei)的(de)(de)(de)密實(shi)(shi)度很重要,一般設(she)計采用(yong)現(xian)澆C20細石混凝土護壁全斷面(mian)填筑,以保證模形區(qu)域的(de)(de)(de)密實(shi)(shi),利于波紋涵管的(de)(de)(de)穩(wen)定性(xing)。壓實(shi)(shi)度要求(qiu):基(ji)礎應采用(yong)振動壓實(shi)(shi)機(ji)進行分層碾壓,碾壓時應根(gen)據回(hui)填材料的(de)(de)(de)含(han)水量及擊實(shi)(shi)曲線灑(sa)水碾壓,壓實(shi)(shi)度不(bu)小于規范要求(qiu)。

鋼波紋涵管價格

鋼波紋涵管價(jia)格

涵管(guan)沒(mei)有達到小填土高度時,不(bu)得使用(yong)大于6T的(de)壓(ya)路機械(xie)碾壓(ya),也不(bu)允許任何(he)重(zhong)型車輛通行(xing)(xing)。參加金(jin)屬波紋涵管(guan)施工(gong)(gong)人員要(yao)熟知本(ben)工(gong)(gong)種(zhong)的(de)安(an)全(quan)操(cao)作(zuo)規程,堅守崗位。特殊工(gong)(gong)種(zhong)人員如電(dian)工(gong)(gong)、電(dian)焊(han)工(gong)(gong)、混凝土工(gong)(gong)、起(qi)重(zhong)工(gong)(gong)等施工(gong)(gong)人員,必須經過專門培(pei)訓,熟練掌握(wo)操(cao)作(zuo)要(yao)求,嚴格執行(xing)(xing)本(ben)工(gong)(gong)種(zhong)的(de)安(an)全(quan)操(cao)作(zuo)規程,必須隨身攜帶有關證(zheng)件(jian)(或(huo)復印件(jian))上崗備(bei)查(cha)。

波(bo)紋(wen)(wen)涵(han)管兩(liang)側(ce)部位回填(tian):填(tian)土(tu)之前,可在波(bo)紋(wen)(wen)涵(han)管兩(liang)側(ce)面用紅油漆按每15cm高度作出填(tian)高標(biao)(biao)示,填(tian)筑時按標(biao)(biao)注線控制(zhi)。在管身更大(da)直徑(jing)兩(liang)側(ce)50cm外可采用12~18T的壓路(lu)機(ji)(ji)應實(shi),50cm范(fan)圍內采用小型夯實(shi)機(ji)(ji)械夯實(shi),以避免大(da)型機(ji)(ji)械設備對涵(han)管的撞擊。(hanihanbj.com


[返回]   
分享此文章:

版權(quan)所(suo)有:衡(heng)水浩(hao)威(wei)新材料有限公司(si)   ICP備案/許可證號(hao):   技術支持: