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衡水浩(hao)威新材(cai)料有限公司(si)主營產品(pin):鋼(gang)波紋管、鋼(gang)波紋涵管

福州鋼波紋涵管施工現場的安全要求有哪些?

瀏覽:16921 發布(bu)日期(qi):2019-02-21

施工過程中,嚴(yan)格遵守操作規則,嚴(yan)防(fang)落(luo)物(wu)傷人及墜落(luo)事故。各(ge)種電氣設備運轉(zhuan)和漏(lou)電保(bao)護裝置(zhi),不(bu)準隨(sui)意(yi)改換安裝方式,尤(you)其對于施工作業的投光燈(deng),裝接工作,一點不(bu)準馬虎(hu)、絲(si)毫不(bu)能漏(lou)電,確(que)保(bao)安全。所有(you)容(rong)易碰(peng)砸的電氣設備加裝防(fang)護罩或遮欄,防(fang)止碰(peng)傷危險。

鋼波(bo)紋涵管施工現場的安全要求有哪些?

波紋(wen)涵(han)(han)(han)管(guan)管(guan)底兩側模形部位的密實度很重要,一般設計采用(yong)(yong)現(xian)澆C20細石混凝土(tu)(tu)(tu)護壁全斷(duan)面(mian)填(tian)筑,以保證模形區域的密實,利于(yu)波紋(wen)涵(han)(han)(han)管(guan)的穩定性。波紋(wen)涵(han)(han)(han)管(guan)頂(ding)部填(tian)土(tu)(tu)(tu)每(mei)層厚(hou)15cm,壓(ya)實度應滿足規范要求。涵(han)(han)(han)管(guan)沒有達到小(xiao)填(tian)土(tu)(tu)(tu)高度時,不(bu)(bu)得使用(yong)(yong)大于(yu)6T的壓(ya)路機(ji)械碾(nian)壓(ya),也不(bu)(bu)允許任何重型車輛(liang)通行。

鐵路鋼波紋管

鐵路鋼(gang)波紋管(guan)

參加金(jin)屬(shu)波紋(wen)涵管(guan)施工(gong)(gong)(gong)(gong)人員要(yao)(yao)(yao)熟知本工(gong)(gong)(gong)(gong)種(zhong)的(de)(de)安全(quan)操(cao)作規程,堅守崗位。特殊工(gong)(gong)(gong)(gong)種(zhong)人員如電(dian)工(gong)(gong)(gong)(gong)、電(dian)焊工(gong)(gong)(gong)(gong)、混(hun)凝土工(gong)(gong)(gong)(gong)、起重工(gong)(gong)(gong)(gong)等施工(gong)(gong)(gong)(gong)人員,必須(xu)經過專門培訓,熟練掌(zhang)握操(cao)作要(yao)(yao)(yao)求(qiu),嚴格執行(xing)本工(gong)(gong)(gong)(gong)種(zhong)的(de)(de)安全(quan)操(cao)作規程,必須(xu)隨身攜帶有關(guan)證件(jian)(或復印件(jian))上崗備查(cha)。搭(da)設(she)金(jin)屬(shu)波紋(wen)涵管(guan)施工(gong)(gong)(gong)(gong)支(zhi)架(jia)(jia)要(yao)(yao)(yao)隨時檢查(cha)支(zhi)架(jia)(jia)的(de)(de)穩定性(xing),并且加固(gu)。支(zhi)架(jia)(jia)完成后(hou),要(yao)(yao)(yao)檢查(cha)、驗算支(zhi)架(jia)(jia)的(de)(de)承力(li),滿足承載要(yao)(yao)(yao)求(qiu)后(hou)再進行(xing)上部施工(gong)(gong)(gong)(gong)。

波紋涵(han)管頂部及兩側20m范圍(wei)內(nei)不允許(xu)使用機(ji)(ji)械進(jin)行強夯,洞身(shen)兩側應用人工或小型機(ji)(ji)具對稱夯填,待(dai)填方高(gao)出涵(han)頂1米時,可(ke)采用機(ji)(ji)械填筑。在完成回填之后(hou),終(zhong)截面(mian)尺寸(cun)與(yu)組(zu)裝時的(de)尺寸(cun)差異更大不得超過2%。如截面(mian)變(bian)形量超過變(bian)形范圍(wei),應立即終(zhong)止施工,查明原因,采取相應措施將變(bian)形量控制在標準要求(qiu)范圍(wei)內(nei)。

填筑(zhu)(zhu)時應(ying)(ying)分層(ceng)(ceng)(ceng)填筑(zhu)(zhu)、分層(ceng)(ceng)(ceng)壓實(shi),每層(ceng)(ceng)(ceng)壓實(shi)厚度(du)為(wei)15cm,壓實(shi)度(du)要求(qiu)達到設(she)計要求(qiu)后(hou)方可進行下一層(ceng)(ceng)(ceng)填筑(zhu)(zhu)。填筑(zhu)(zhu)必須(xu)在波(bo)紋(wen)(wen)涵管兩側對稱同步進行,兩側的(de)回填土高差(cha)不得大于(yu)15cm。對于(yu)有(you)兩端擋墻的(de)涵洞,回填應(ying)(ying)從兩端向結(jie)構中(zhong)心進行。如果因偏土壓造成鋼波(bo)紋(wen)(wen)涵管變形的(de),應(ying)(ying)修正(zheng)截(jie)面尺寸(cun)后(hou)重新壓實(shi)。

鐵路鋼波紋管

鐵路(lu)鋼波紋管(guan)

波紋(wen)(wen)涵管(guan)兩(liang)側部位回填(tian)(tian):填(tian)(tian)土之前,可(ke)在(zai)波紋(wen)(wen)涵管(guan)兩(liang)側面用(yong)紅油漆按每15cm高度作(zuo)出填(tian)(tian)高標示,填(tian)(tian)筑(zhu)時按標注線控制(zhi)。在(zai)管(guan)身更(geng)大(da)直徑兩(liang)側50cm外可(ke)采用(yong)12~18T的(de)(de)(de)壓路機應實,50cm范(fan)(fan)圍(wei)內采用(yong)小型(xing)夯實機械夯實,以避(bi)免大(da)型(xing)機械設備(bei)對涵管(guan)的(de)(de)(de)撞擊(ji)。靠近管(guan)體周圍(wei)50cm范(fan)(fan)圍(wei)內,不(bu)允許有大(da)于50mm的(de)(de)(de)石塊、混凝土塊或其他有害(hai)腐蝕材(cai)料。

壓(ya)(ya)實(shi)度要(yao)求(qiu):基礎(chu)應(ying)采(cai)用(yong)振動(dong)壓(ya)(ya)實(shi)機進行分(fen)層碾(nian)壓(ya)(ya),碾(nian)壓(ya)(ya)時應(ying)根據回填(tian)(tian)(tian)材料(liao)的含水量及(ji)擊實(shi)曲線灑水碾(nian)壓(ya)(ya),壓(ya)(ya)實(shi)度不小于規(gui)(gui)范(fan)要(yao)求(qiu)。具體施工技術(shu)(shu)要(yao)求(qiu)可參閱《公(gong)路路基設計(ji)規(gui)(gui)范(fan)》和《公(gong)路路基施工技術(shu)(shu)規(gui)(gui)范(fan)》。波(bo)紋涵(han)管兩側(ce)及(ji)頂(ding)部100cm范(fan)圍內的回填(tian)(tian)(tian)及(ji)壓(ya)(ya)實(shi)度要(yao)求(qiu),圖(tu)中涵(han)洞兩側(ce)回填(tian)(tian)(tian)土(tu)壓(ya)(ya)實(shi)度要(yao)求(qiu)執行,當(dang)涵(han)頂(ding)填(tian)(tian)(tian)土(tu)厚(hou)度超過(guo)100cm時,填(tian)(tian)(tian)土(tu)壓(ya)(ya)實(shi)度與(yu)同(tong)一(yi)標高路基壓(ya)(ya)實(shi)度要(yao)求(qiu)相同(tong)。(hanihanbj.com


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