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)浩威新(xin)材(cai)料有限公司主(zhu)營(ying)產品:鋼(gang)波(bo)紋(wen)(wen)管、鋼(gang)波(bo)紋(wen)(wen)涵管

雞西鋼波紋管可代替傳統建材進行涵洞施工

瀏覽:16586 發布日期(qi):2020-04-08

公路工程的涵洞一般采用鋼筋混凝土制作。現采用鋼波紋涵管代替(ti)鋼(gang)筋(jin)混(hun)凝(ning)土(tu)進行(xing)涵洞施(shi)(shi)工在(zai)國(guo)內時一項(xiang)新技術,鋼(gang)波紋涵管以其性能穩定、安裝方便、有利環保、造價低等(deng)優點(dian)迅速在(zai)公路施(shi)(shi)工中代替(ti)了鋼(gang)筋(jin)混(hun)凝(ning)土(tu)施(shi)(shi)工的涵洞,發展前景非(fei)常廣闊。

鋼波紋管可代替傳統建材進行涵洞施工

在(zai)公(gong)(gong)路(lu)(lu)施(shi)(shi)(shi)(shi)工(gong)中(zhong),應用(yong)(yong)鋼(gang)波(bo)(bo)(bo)紋(wen)(wen)涵(han)(han)(han)(han)(han)管(guan)(guan)代替(ti)鋼(gang)筋混凝土進(jin)(jin)行(xing)涵(han)(han)(han)(han)(han)洞(dong)施(shi)(shi)(shi)(shi)工(gong)的(de)(de)(de)歷史已經有(you)100多年(nian)了(le)(le)。1896年(nian),美國(guo)(guo)率行(xing)波(bo)(bo)(bo)紋(wen)(wen)涵(han)(han)(han)(han)(han)管(guan)(guan)通(tong)道、涵(han)(han)(han)(han)(han)管(guan)(guan)的(de)(de)(de)可行(xing)性(xing)(xing)研(yan)究(jiu)。其(qi)后,在(zai)美國(guo)(guo)、加拿大(da)、澳大(da)利亞等(deng)(deng)國(guo)(guo)的(de)(de)(de)公(gong)(gong)路(lu)(lu)建設(she)中(zhong),均采(cai)用(yong)(yong)了(le)(le)鋼(gang)波(bo)(bo)(bo)紋(wen)(wen)涵(han)(han)(han)(han)(han)管(guan)(guan)進(jin)(jin)行(xing)涵(han)(han)(han)(han)(han)洞(dong)的(de)(de)(de)施(shi)(shi)(shi)(shi)工(gong)。1990年(nian),日(ri)本高速公(gong)(gong)路(lu)(lu)設(she)計(ji),規(gui)(gui)范制(zhi)定了(le)(le)波(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)涵(han)(han)(han)(han)(han)設(she)計(ji)技(ji)術規(gui)(gui)范。隨著波(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)涵(han)(han)(han)(han)(han)在(zai)世界各地(di)的(de)(de)(de)安裝使(shi)用(yong)(yong),證明了(le)(le)此種結(jie)構在(zai)各種使(shi)用(yong)(yong)情況下的(de)(de)(de)通(tong)用(yong)(yong)性(xing)(xing)。在(zai)我國(guo)(guo)改革開(kai)放(fang)后,深(shen)圳及大(da)同(tong)煤礦開(kai)始(shi)從(cong)國(guo)(guo)外進(jin)(jin)口成品波(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)涵(han)(han)(han)(han)(han)進(jin)(jin)行(xing)涵(han)(han)(han)(han)(han)洞(dong)施(shi)(shi)(shi)(shi)工(gong)。之后,上(shang)(shang)海(hai)市公(gong)(gong)路(lu)(lu)管(guan)(guan)理處、上(shang)(shang)海(hai)市政工(gong)程設(she)計(ji)研(yan)究(jiu)院、上(shang)(shang)海(hai)同(tong)濟大(da)學(xue)對金屬波(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)涵(han)(han)(han)(han)(han)進(jin)(jin)行(xing)了(le)(le)動(dong)、靜載試驗(yan),結(jie)果表明能滿足設(she)計(ji)使(shi)用(yong)(yong)要求,填補了(le)(le)國(guo)(guo)內(nei)的(de)(de)(de)空白,且迅速得到推(tui)廣(guang)應用(yong)(yong)。幕墻一貫反應用(yong)(yong)于(yu)我國(guo)(guo)各地(di)公(gong)(gong)路(lu)(lu)設(she)施(shi)(shi)(shi)(shi)建設(she)當中(zhong)。鋼(gang)波(bo)(bo)(bo)紋(wen)(wen)涵(han)(han)(han)(han)(han)管(guan)(guan)投入到了(le)(le)青海(hai)公(gong)(gong)路(lu)(lu)施(shi)(shi)(shi)(shi)工(gong)當中(zhong),三(san)年(nian)的(de)(de)(de)實(shi)踐證明,鋼(gang)波(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)涵(han)(han)(han)(han)(han)在(zai)北方寒冷地(di)區完(wan)全符合公(gong)(gong)路(lu)(lu)建設(she)當中(zhong)的(de)(de)(de)涵(han)(han)(han)(han)(han)洞(dong)施(shi)(shi)(shi)(shi)工(gong)要求。陜(shan)西(xi)通(tong)途交通(tong)設(she)施(shi)(shi)(shi)(shi)有(you)限(xian)公(gong)(gong)司是(shi)一家(jia)生產公(gong)(gong)路(lu)(lu)涵(han)(han)(han)(han)(han)洞(dong)通(tong)道用(yong)(yong)波(bo)(bo)(bo)紋(wen)(wen)鋼(gang)管(guan)(guan)(板(ban)(ban))的(de)(de)(de)企業,主要產品包括公(gong)(gong)路(lu)(lu)涵(han)(han)(han)(han)(han)洞(dong)通(tong)道用(yong)(yong)波(bo)(bo)(bo)紋(wen)(wen)鋼(gang)管(guan)(guan)(板(ban)(ban))、相(xiang)(xiang)關配套(tao)設(she)施(shi)(shi)(shi)(shi)有(you)橋梁支座、伸縮縫、鋼(gang)波(bo)(bo)(bo)紋(wen)(wen)腹板(ban)(ban)橋、聲(sheng)屏障、鋼(gang)便橋、土工(gong)材(cai)料、防水材(cai)料、金屬掛網(wang)、防眩板(ban)(ban)、公(gong)(gong)路(lu)(lu)護欄(lan)等(deng)(deng)交通(tong)基礎設(she)施(shi)(shi)(shi)(shi)和其(qi)他相(xiang)(xiang)應的(de)(de)(de)基礎設(she)施(shi)(shi)(shi)(shi)。

實踐證明,用鋼波(bo)紋涵(han)(han)管代替(ti)鋼筋混(hun)凝土進行(xing)涵(han)(han)洞(dong)施(shi)工(gong),無論(lun)從施(shi)工(gong)周(zhou)期、施(shi)工(gong)造價、環保意(yi)義等方面(mian)都有其不可比擬的(de)優越性(xing)(xing),且用鋼波(bo)紋管涵(han)(han)進行(xing)涵(han)(han)洞(dong)施(shi)工(gong),可大(da)大(da)提高道(dao)路行(xing)車(che)的(de)舒(shu)適度(du)與安全(quan)性(xing)(xing),避免道(dao)路中涵(han)(han)洞(dong)的(de)“錯臺跳(tiao)車(che)”現(xian)形,有利于解決西北地(di)區(qu)寒冷霜凍對砼管涵(han)(han)結構的(de)破(po)壞問(wen)題。

鋼波紋涵管施工要求

鋼波紋(wen)管涵的施工工藝及(ji)安裝技術要(yao)求

1 涵洞施工(gong)(gong)前準(zhun)備(bei)相關(guan)材料,人(ren)員及設(she)備(bei)進場,并(bing) 做好施工(gong)(gong)時期的安全防護(hu)工(gong)(gong)作,對路基邊坡進行圍網保(bao)護(hu),防止石(shi)塊等物(wu)體下滑(hua)傷人(ren)。

2 基礎處(chu)理:可回填砂礫(li)或砌筑片石砼,對基底進(jin)行平(ping)整,換填30-50cm厚的(de)砂礫(li)材料(liao),密實度(du)達到(dao)90%以上,選擇適當的(de)流水縱坡(po)3%左右,定出每(mei)道(dao)涵(han)的(de)中線和邊線。

3 波紋(wen)管涵(han)(han)施工(gong)時(shi),采用分段施工(gong)的方法,預先在原拱(gong)涵(han)(han)基底用角鋼并排(pai)兩根,長(chang)度根據涵(han)(han)長(chang)確定,作涵(han)(han)管推進時(shi)的滑(hua)軌,波紋(wen)涵(han)(han)管管徑(jing)(jing)根據工(gong)程需要可(ke)有不同的規格,整裝(zhuang)管管徑(jing)(jing)為0.5m-2.5m,每(mei)節長(chang)度3.06米,采用內(外)法蘭螺栓連接,拼裝(zhuang)管管徑(jing)(jing)為3m-8m,板與(yu)板搭(da)接高(gao)強(qiang)螺栓緊固。

4 如果涵長小于30米,波紋管(guan)(guan)涵兩側與原涵寬度大于80cm,可將整道波紋管(guan)(guan)涵在下(xia)游或上游向(xiang)一端推進(jin),就位以(yi)后,再進(jin)行一端擋(dang)墻的(de)砌筑(zhu)(zhu),四周(zhou)的(de)回(hui)填工作,可回(hui)填沙(sha)礫(li)、碎石土、砌筑(zhu)(zhu)片石等。頂(ding)部采用砌片石或高壓泵送(song)膨脹水泥砂(sha)漿。

5 如果涵長大于30米,波紋管(guan)涵兩側(ce)與原涵寬度小于80cm,可(ke)將3m-6m長涵管(guan)在(zai)下游或上游向一(yi)端(duan)推進,就位以后可(ke)以將其固定,砌筑頂端(duan)的(de)(de)(de)片石端(duan)墻,波紋管(guan)涵的(de)(de)(de)另一(yi)端(duan)與涵洞間的(de)(de)(de)間距用沙袋(dai)或漿砌片石擋住(zhu),寬度50cm,然(ran)后開始回填。兩側(ce)可(ke)用粗沙水(shui)密法密實(shi)(shi)或澆(jiao)注混凝土震動棒搗(dao)實(shi)(shi)。頂部采用高壓泵送膨(peng)脹水(shui)泥(ni)沙漿。該節管(guan)四周(zhou)填筑完(wan)畢后,將第貳節運至,進行兩管(guan)的(de)(de)(de)連接,連接完(wan)畢后,以上述相同(tong)的(de)(de)(de)方法進行回填,依此順(shun)序(xu)完(wan)成(cheng)管(guan)道波紋管(guan)涵的(de)(de)(de)修建工作。

鋼波紋涵管加拿大東部的(de)工廠制(zhi)(zhi)造(zao)的(de)常規厚度(du)(du)的(de),長度(du)(du)為(wei)6米的(de)鍍鋅波紋(wen)涵(han)(han)管(guan)(guan)在(zai)船上交貨的(de)大致價格列于表(biao),當然該廠還制(zhi)(zhi)造(zao)其(qi)它長度(du)(du)的(de)。短節混凝土波紋(wen)涵(han)(han)管(guan)(guan)的(de)價格在(zai)該制(zhi)(zhi)造(zao)廠大致一樣,但由于較重,運輸(shu)費用高,所以一般不太受歡迎。對這些(xie)不同材(cai)(cai)料的(de)波紋(wen)涵(han)(han)管(guan)(guan)在(zai)現(xian)地(di)的(de)費用問題應作出(chu)各種分析。當地(di)處理的(de)本地(di)木材(cai)(cai),在(zai)多數情(qing)況下(xia)很可能是便(bian)宜的(de)波紋(wen)涵(han)(han)管(guan)(guan)材(cai)(cai)料,但安裝費要高得多。

當利(li)用(yong)推土機和其它重型設備(bei)修筑路其和排水溝時,埋設波(bo)紋(wen)涵(han)管(guan)(guan)(guan)的(de)(de)(de)挖土、波(bo)紋(wen)涵(han)管(guan)(guan)(guan)埋設后的(de)(de)(de)回(hui)填(tian)土和由(you)涵(han)洞(dong)出口把水導出去的(de)(de)(de)泄水溝的(de)(de)(de)挖掘等(deng)(deng),一(yi)般(ban)來說是(shi)采用(yong)機械化(hua)作業的(de)(de)(de)。為了(le)給(gei)圓形管(guan)(guan)(guan)拱(gong)或(huo)拱(gong)起波(bo)紋(wen)涵(han)管(guan)(guan)(guan)而(er)準備(bei)好(hao)一(yi)個平滑(hua)床,要(yao)鋪(pu)上(shang)一(yi)層(ceng)(ceng)厚度(du)(du)10厘米左右的(de)(de)(de)粗砂層(ceng)(ceng)或(huo)礫(li)石(shi)層(ceng)(ceng),該層(ceng)(ceng)的(de)(de)(de)材(cai)料要(yao)求松散些以便波(bo)紋(wen)涵(han)管(guan)(guan)(guan)能夠埋沒于(yu)該層(ceng)(ceng)中。該平滑(hua)床應具有3-5%連續坡度(du)(du),支承波(bo)紋(wen)涵(han)管(guan)(guan)(guan)管(guan)(guan)(guan)道全長。回(hui)填(tian)土應按(an)6英(ying)寸一(yi)層(ceng)(ceng)給(gei)予壓(ya)(ya)實(shi)以加(jia)固對涵(han)洞(dong)的(de)(de)(de)側向支持力。這件事用(yong)手提式振動(dong)壓(ya)(ya)實(shi)器(qi)是(shi)可以輕而(er)易舉地(di)做到(dao)(dao)的(de)(de)(de)。在(zai)(zai)涵(han)洞(dong)上(shang)面鋪(pu)蓋的(de)(de)(de)土層(ceng)(ceng)厚度(du)(du)取(qu)決于(yu)所使用(yong)的(de)(de)(de)涵(han)洞(dong)材(cai)料的(de)(de)(de)厚度(du)(du),土壤(rang)特(te)性,車輛軸(zhou)重和行駛速(su)度(du)(du)。在(zai)(zai)生產上(shang)推薦的(de)(de)(de)是(shi)用(yong)承載能力強的(de)(de)(de)土并把它壓(ya)(ya)實(shi)到(dao)(dao)等(deng)(deng)于(yu)波(bo)紋(wen)涵(han)管(guan)(guan)(guan)直(zhi)徑的(de)(de)(de)厚度(du)(du)。

如(ru)果(guo)涵(han)(han)洞(dong)(dong)設計得太小(xiao)和太接近于地表(biao)特別是(shi)在暴露的地方,而且水(shui)流速度(du)(du)緩慢,則在北部地區的冬(dong)季容易凍結(jie),后還要堵塞。這(zhe)可(ke)以(yi)得到補救,辦法以(yi)是(shi)增加涵(han)(han)洞(dong)(dong)的坡(po)度(du)(du),采(cai)用無底的木(mu)制涵(han)(han)洞(dong)(dong)或在寒冷季節接近時,把(ba)涵(han)(han)洞(dong)(dong)進(jin)口端用軟樹技鋪蓋。如(ru)果(guo)涵(han)(han)洞(dong)(dong)的位置坡(po)度(du)(du)太低,那么將(jiang)被(bei)碎(sui)石頭和粗粒(li)砂等填(tian)塞。這(zhe)種情況(kuang)可(ke)以(yi)通過在涵(han)(han)洞(dong)(dong)進(jin)口修井(jing)或截水(shui)坑(keng)和修防止沖刷和把(ba)水(shui)引進(jin)涵(han)(han)洞(dong)(dong)的小(xiao)型扶垛等措(cuo)施來解決。

大型混凝土波紋涵管或鍍鋅鋼波紋涵管可以單獨或若干根一起用來代替小橋。這些都是性的,通常其修建費較便宜并且不要求或極小要求養護。當一起使用幾根波紋涵管時,應使它們互相離開一定距離以便于在它們中間使用壓實器。利用壓實器給予壓實可以說就是利用把水從活動區引向別處。但是在溪流帶來橫架在涵洞進口并引起堵塞的大的碎石的地方,不要使用這種涵洞。鋼波紋涵管以它特殊的物理結構就能做到這一點。鋼波紋管涵以其性能穩定、安裝方便、有利環保、造價低等優點迅速在公路施工中代替了鋼筋混凝土施工的涵洞,發展前景非常廣闊。//hanihanbj.com/

[返回]   
分享此文章:

版權所(suo)有:衡水浩威新材(cai)料有限公司   ICP備(bei)案/許可證號:   技術支持(chi):