達到設計深(shen)度后掃孔(kong)，安裝注漿管(guan)(guan)，并在(zai)孔(kong)口(kou)，用水泥砂漿封閉孔(kong)口(kou)，防止(zhi)漿液(ye)沿注漿管(guan)(guan)與鉆孔(kong)壁的縫隙擠出。采用鉆－注的順序進行(xing)施工。

配漿(jiang)(jiang)(jiang)及(ji)注(zhu)(zhu)漿(jiang)(jiang)(jiang)用超細(xi)水(shui)泥(ni)配制注(zhu)(zhu)漿(jiang)(jiang)(jiang)液(ye)(ye)，采用后退式(shi)分段(duan)注(zhu)(zhu)漿(jiang)(jiang)(jiang)，關(guan)閉孔口閥門，開啟注(zhu)(zhu)漿(jiang)(jiang)(jiang)泵進行管(guan)(guan)路壓(ya)(ya)水(shui)試驗，試驗壓(ya)(ya)力等于注(zhu)(zhu)漿(jiang)(jiang)(jiang)終壓(ya)(ya)，如有漏水(shui)及(ji)時(shi)(shi)檢修。注(zhu)(zhu)漿(jiang)(jiang)(jiang)時(shi)(shi)采取(qu)低壓(ya)(ya)力、中流量注(zhu)(zhu)入，注(zhu)(zhu)漿(jiang)(jiang)(jiang)過程中壓(ya)(ya)力逐(zhu)步上升，流量逐(zhu)步減小，當壓(ya)(ya)力升至終壓(ya)(ya)時(shi)(shi)，繼續壓(ya)(ya)注(zhu)(zhu)5min再結(jie)束注(zhu)(zhu)漿(jiang)(jiang)(jiang)。注(zhu)(zhu)漿(jiang)(jiang)(jiang)孔在注(zhu)(zhu)漿(jiang)(jiang)(jiang)結(jie)束后及(ji)時(shi)(shi)管(guan)(guan)內漿(jiang)(jiang)(jiang)液(ye)(ye)，并用30號水(shui)泥(ni)砂漿(jiang)(jiang)(jiang)填充，以增強管(guan)(guan)棚的剛度和強度。

注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)結(jie)束標準(zhun)每段注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)施工(gong)正常，注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)壓(ya)力達(da)(da)到設計終壓(ya)，注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)量(liang)(liang)(liang)達(da)(da)到設計注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)量(liang)(liang)(liang)的(de)80%及(ji)以上，或(huo)雖未(wei)達(da)(da)到設計終壓(ya)，但注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)量(liang)(liang)(liang)已(yi)達(da)(da)設計注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)量(liang)(liang)(liang)，即可結(jie)束單孔注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)，設計的(de)所有注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)孔均達(da)(da)到結(jie)束標準(zhun)，無漏注(zhu)(zhu)(zhu)(zhu)(zhu)現象，注(zhu)(zhu)(zhu)(zhu)(zhu)水試驗(yan)地層吸水率，粘土固結(jie)強度(du)大于。2.超前小導(dao)(dao)管施工(gong)超前小導(dao)(dao)管采用(yong)(yong)Φ42mm，壁厚。鋼管上入(ru)巖部分梅花(hua)形布(bu)置Φ6mm注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)孔，注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)孔間(jian)距12cm。導(dao)(dao)管前端(duan)加工(gong)成尖錐(zhui)形，尾(wei)部焊接Φ。注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)機選(xuan)用(yong)(yong)液壓(ya)注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)機。施工(gong)時(shi)(shi)(shi)，先用(yong)(yong)儀器測(ce)量(liang)(liang)(liang)放線，畫(hua)出開挖(wa)外(wai)輪廓(kuo)線，定(ding)出小導(dao)(dao)管中心線位置。導(dao)(dao)管采用(yong)(yong)鉆孔施工(gong)時(shi)(shi)(shi)，孔眼(yan)深度(du)應大于導(dao)(dao)管長度(du)；采用(yong)(yong)錘擊或(huo)鉆機頂(ding)入(ru)時(shi)(shi)(shi)，其(qi)頂(ding)入(ru)長度(du)不小于管長的(de)90%。注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)時(shi)(shi)(shi)，一般采用(yong)(yong)先低壓(ya)、中流(liu)量(liang)(liang)(liang)注(zhu)(zhu)(zhu)(zhu)(zhu)入(ru)，注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)過(guo)程壓(ya)力逐漸升高(gao)，注(zhu)(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)流(liu)量(liang)(liang)(liang)逐漸減(jian)少；南寧塑料管棚管

管(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)管(guan)(guan)(guan)(guan)(guan)(guan)在(zai)(zai)(zai)隧道(dao)(dao)工程中(zhong)(zhong)起到的(de)(de)(de)(de)(de)(de)(de)(de)(de)的(de)(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)用(yong)現代(dai)人們(men)(men)生(sheng)(sheng)活(huo)節奏快，生(sheng)(sheng)活(huo)質量進(jin)一(yi)(yi)步(bu)提(ti)高，在(zai)(zai)(zai)注漿(jiang)(jiang)建(jian)(jian)材的(de)(de)(de)(de)(de)(de)(de)(de)(de)選擇上(shang)也不(bu)(bu)例(li)外，簡單、快捷、安全的(de)(de)(de)(de)(de)(de)(de)(de)(de)保(bao)溫建(jian)(jian)材深受人們(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)喜愛(ai)，而管(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)管(guan)(guan)(guan)(guan)(guan)(guan)達(da)(da)到了(le)這(zhe)(zhe)一(yi)(yi)要求，發揮(hui)了(le)它(ta)強(qiang)(qiang)大的(de)(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)用(yong)，逐漸走進(jin)了(le)我們(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)生(sheng)(sheng)活(huo)，跟著(zhu)我們(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)生(sheng)(sheng)活(huo)息息相(xiang)關。那么，它(ta)在(zai)(zai)(zai)我們(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)生(sheng)(sheng)活(huo)中(zhong)(zhong)發揮(hui)了(le)什么樣的(de)(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)用(yong)呢？由管(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)管(guan)(guan)(guan)(guan)(guan)(guan)這(zhe)(zhe)些特性(xing)來看特別適用(yong)于分體(ti)式(shi)空調機連接管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)保(bao)溫以及(ji)寒冷地區(qu)輸(shu)送(song)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)防凍保(bao)溫。它(ta)是(shi)(shi)繼之后(hou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)第三代(dai)泡(pao)沫保(bao)溫材料,吸水(shui)率低,具有(you)導(dao)熱(re)系數小,彈性(xing)和機械(xie)性(xing)能良(liang)(liang)(liang)好,施工方(fang)便等(deng)特點,質地柔軟(ruan),廣泛應(ying)用(yong)于隔熱(re)保(bao)冷，保(bao)溫的(de)(de)(de)(de)(de)(de)(de)(de)(de)場合。看似與我們(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)生(sheng)(sheng)活(huo)沒有(you)什么關系，其(qi)實我們(men)(men)所住(zhu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)樓房，上(shang)學時代(dai)的(de)(de)(de)(de)(de)(de)(de)(de)(de)學校(xiao)，上(shang)班(ban)的(de)(de)(de)(de)(de)(de)(de)(de)(de)單位，以及(ji)各大公(gong)(gong)共場所都是(shi)(shi)離不(bu)(bu)開(kai)管(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)。它(ta)無處(chu)不(bu)(bu)在(zai)(zai)(zai)，已經(jing)(jing)完全融入了(le)我們(men)(men)生(sheng)(sheng)活(huo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)每一(yi)(yi)個角落。在(zai)(zai)(zai)保(bao)溫行業(ye)(ye)中(zhong)(zhong)屬管(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)管(guan)(guan)(guan)(guan)(guan)(guan)**能夠受到青睞，它(ta)不(bu)(bu)僅(jin)有(you)著(zhu)耐溫性(xing)、導(dao)熱(re)系數、環(huan)保(bao)性(xing)能均達(da)(da)到目前國內比(bi)較(jiao)高標準，而且是(shi)(shi)一(yi)(yi)種真正的(de)(de)(de)(de)(de)(de)(de)(de)(de)保(bao)溫、耐腐(fu)蝕的(de)(de)(de)(de)(de)(de)(de)(de)(de)高性(xing)能產(chan)(chan)品。管(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)管(guan)(guan)(guan)(guan)(guan)(guan)具有(you)其(qi)它(ta)保(bao)溫產(chan)(chan)品所無法(fa)比(bi)擬的(de)(de)(de)(de)(de)(de)(de)(de)(de)優(you)良(liang)(liang)(liang)性(xing)能，在(zai)(zai)(zai)城市熱(re)力(li)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)行業(ye)(ye)中(zhong)(zhong)發揮(hui)了(le)重(zhong)要的(de)(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)用(yong)。做(zuo)良(liang)(liang)(liang)心產(chan)(chan)品，用(yong)良(liang)(liang)(liang)心做(zuo)產(chan)(chan)品，這(zhe)(zhe)是(shi)(shi)公(gong)(gong)司經(jing)(jing)常教(jiao)導(dao)員工的(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)句話，這(zhe)(zhe)是(shi)(shi)因為處(chu)處(chu)為客戶(hu)著(zhu)想的(de)(de)(de)(de)(de)(de)(de)(de)(de)原則，生(sheng)(sheng)產(chan)(chan)出的(de)(de)(de)(de)(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)管(guan)(guan)(guan)(guan)(guan)(guan)成為了(le)人們(men)(men)放心的(de)(de)(de)(de)(de)(de)(de)(de)(de)好管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)。梧州管(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)生(sheng)(sheng)產(chan)(chan)廠(chang)家注漿(jiang)(jiang)漿(jiang)(jiang)液經(jing)(jing)管(guan)(guan)(guan)(guan)(guan)(guan)改(gai)善了(le)軟(ruan)弱圍巖(yan)(yan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)物理力(li)學性(xing)質，增強(qiang)(qiang)了(le)圍巖(yan)(yan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)自承能力(li)，達(da)(da)到加(jia)固(gu)鋼管(guan)(guan)(guan)(guan)(guan)(guan)周邊軟(ruan)弱圍巖(yan)(yan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)(de)(de)(de)(de)。

管(guan)(guan)(guan)棚(peng)(peng)(peng)主(zhu)要(yao)用(yong)于(yu)對于(yu)圍(wei)巖(yan)(yan)(yan)變形(xing)(xing)及(ji)地(di)(di)表下(xia)沉有較(jiao)嚴格限制要(yao)求的(de)(de)(de)(de)軟弱破(po)碎圍(wei)巖(yan)(yan)(yan)隧道工(gong)程(cheng)中，如軟弱、沙(sha)礫地(di)(di)層(ceng)和(he)軟巖(yan)(yan)(yan)、巖(yan)(yan)(yan)堆、破(po)碎帶地(di)(di)段。管(guan)(guan)(guan)棚(peng)(peng)(peng)形(xing)(xing)狀圖一(yi)(yi)、簡介一(yi)(yi)般是(shi)(shi)沿地(di)(di)下(xia)工(gong)程(cheng)斷面(mian)(mian)的(de)(de)(de)(de)一(yi)(yi)部(bu)分(fen)(fen)或全(quan)(quan)部(bu)，以一(yi)(yi)定的(de)(de)(de)(de)間距環(huan)向(xiang)布設，形(xing)(xing)成鋼(gang)管(guan)(guan)(guan)棚(peng)(peng)(peng)護。管(guan)(guan)(guan)棚(peng)(peng)(peng)超前(qian)支(zhi)護是(shi)(shi)為(wei)(wei)了(le)在特殊條件下(xia)安全(quan)(quan)開(kai)挖，預先提供增強地(di)(di)層(ceng)承(cheng)載(zai)力的(de)(de)(de)(de)臨時支(zhi)護方(fang)法(fa)。二、主(zhu)要(yao)作(zuo)用(yong)及(ji)優(you)點（1）梁(liang)拱效應(ying)(ying)：先行(xing)施工(gong)的(de)(de)(de)(de)管(guan)(guan)(guan)棚(peng)(peng)(peng)以掌(zhang)子(zi)面(mian)(mian)前(qian)方(fang)圍(wei)巖(yan)(yan)(yan)支(zhi)撐(cheng)(cheng)和(he)后(hou)方(fang)圍(wei)巖(yan)(yan)(yan)支(zhi)撐(cheng)(cheng)為(wei)(wei)支(zhi)點，形(xing)(xing)成一(yi)(yi)個(ge)梁(liang)式結(jie)構(gou)，二者形(xing)(xing)成環(huan)繞(rao)(rao)隧洞輪廓的(de)(de)(de)(de)殼狀結(jie)構(gou)，可有效圍(wei)巖(yan)(yan)(yan)松(song)動和(he)垮塌。（2）加(jia)固(gu)效應(ying)(ying)：注漿漿液經管(guan)(guan)(guan)壁孔壓入圍(wei)巖(yan)(yan)(yan)裂隙中，使(shi)松(song)散巖(yan)(yan)(yan)體膠(jiao)結(jie)、固(gu)結(jie)，從而改善了(le)軟弱（破(po)碎）圍(wei)巖(yan)(yan)(yan)的(de)(de)(de)(de)物(wu)理(li)力學性質，增強了(le)圍(wei)巖(yan)(yan)(yan)的(de)(de)(de)(de)自承(cheng)受能力，達(da)到(dao)了(le)加(jia)固(gu)管(guan)(guan)(guan)棚(peng)(peng)(peng)周(zhou)邊圍(wei)巖(yan)(yan)(yan)的(de)(de)(de)(de)目的(de)(de)(de)(de)。（3）環(huan)槽(cao)效應(ying)(ying)：掌(zhang)子(zi)面(mian)(mian)爆(bao)產生的(de)(de)(de)(de)沖(chong)擊波傳播和(he)爆(bao)生氣體擴展遇管(guan)(guan)(guan)棚(peng)(peng)(peng)密(mi)集環(huan)形(xing)(xing)孔槽(cao)后(hou)被反(fan)射、吸收或繞(rao)(rao)射，降低了(le)反(fan)向(xiang)拉(la)伸波所(suo)造(zao)成的(de)(de)(de)(de)圍(wei)巖(yan)(yan)(yan)破(po)壞(huai)程(cheng)度和(he)擾動范圍(wei)。（4）確(que)保施工(gong)安全(quan)(quan)：管(guan)(guan)(guan)棚(peng)(peng)(peng)支(zhi)護剛度較(jiao)大，施工(gong)時如再(zai)次(ci)(ci)發生塌方(fang)，塌渣(zha)也是(shi)(shi)落(luo)在管(guan)(guan)(guan)棚(peng)(peng)(peng)上部(bu)巖(yan)(yan)(yan)渣(zha)上，起到(dao)緩沖(chong)作(zuo)用(yong)。即使(shi)管(guan)(guan)(guan)棚(peng)(peng)(peng)失穩，其(qi)破(po)壞(huai)也較(jiao)緩慢。三(san)、分(fen)(fen)類管(guan)(guan)(guan)棚(peng)(peng)(peng)通(tong)常可分(fen)(fen)為(wei)(wei)長(chang)管(guan)(guan)(guan)棚(peng)(peng)(peng)和(he)短管(guan)(guan)(guan)棚(peng)(peng)(peng)。短管(guan)(guan)(guan)棚(peng)(peng)(peng)：長(chang)度小(xiao)于(yu)10m的(de)(de)(de)(de)小(xiao)鋼(gang)管(guan)(guan)(guan)，一(yi)(yi)次(ci)(ci)超前(qian)量小(xiao)，基(ji)本上與開(kai)挖作(zuo)業交替進行(xing)。

注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)應用(yong)特點注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)管(guan)(guan)(guan)(guan)(guan)(guan)是(shi)一(yi)種(zhong)(zhong)預(yu)埋(mai)注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)管(guan)(guan)(guan)(guan)(guan)(guan)系(xi)統(tong)(tong)，用(yong)于混(hun)凝(ning)土中(zhong)的(de)施工縫(feng)(feng)、冷接(jie)縫(feng)(feng)、管(guan)(guan)(guan)(guan)(guan)(guan)子滲(shen)縫(feng)(feng)、地墻之間(jian)空隙等(deng)處的(de)密封。在新和舊(jiu)混(hun)凝(ning)土的(de)接(jie)縫(feng)(feng)之間(jian)安裝注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)管(guan)(guan)(guan)(guan)(guan)(guan)是(shi)非(fei)常合(he)適(shi)的(de)。當水滲(shen)入接(jie)縫(feng)(feng)時(shi)(shi)，可(ke)以(yi)通過設定在表(biao)面的(de)pvc端(duan)口注(zhu)(zhu)(zhu)(zhu)入漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)液加以(yi)封堵這種(zhong)(zhong)方法可(ke)以(yi)密封接(jie)縫(feng)(feng)。合(he)適(shi)的(de)注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)時(shi)(shi)間(jian)可(ke)以(yi)選擇在混(hun)凝(ning)土養護結(jie)束后(hou)進行(xing)(xing)注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)。滲(shen)漏(lou)接(jie)縫(feng)(feng)同樣也可(ke)以(yi)用(yong)這方法做成(cheng)密封。生產超(chao)(chao)前(qian)小導(dao)管(guan)(guan)(guan)(guan)(guan)(guan)、注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)管(guan)(guan)(guan)(guan)(guan)(guan)、鋼(gang)花(hua)(hua)管(guan)(guan)(guan)(guan)(guan)(guan)、管(guan)(guan)(guan)(guan)(guan)(guan)棚管(guan)(guan)(guan)(guan)(guan)(guan)、聲(sheng)(sheng)(sheng)測(ce)(ce)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)廠家(jia),廠家(jia)常年備(bei)有大量(liang)現貨,產品執行(xing)(xing)交通部(bu)(bu)的(de)JT/T700-2007標準。??路橋(qiao)材(cai)料為：注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)鋼(gang)花(hua)(hua)管(guan)(guan)(guan)(guan)(guan)(guan)，超(chao)(chao)前(qian)小導(dao)管(guan)(guan)(guan)(guan)(guan)(guan)，隧道管(guan)(guan)(guan)(guan)(guan)(guan)棚管(guan)(guan)(guan)(guan)(guan)(guan)，聲(sheng)(sheng)(sheng)測(ce)(ce)管(guan)(guan)(guan)(guan)(guan)(guan)產品可(ke)執行(xing)(xing)GB、JG、SY相關標準。安裝注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)施工縫(feng)(feng)表(biao)面應堅(jian)實、平整，不(bu)得有浮漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)、油污(wu)、疏松(song)、空洞、碎(sui)石團等(deng)，否則應予以(yi)。注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)導(dao)管(guan)(guan)(guan)(guan)(guan)(guan)與注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)管(guan)(guan)(guan)(guan)(guan)(guan)連接(jie)應牢固、嚴(yan)密。導(dao)管(guan)(guan)(guan)(guan)(guan)(guan)末端(duan)應臨時(shi)(shi)封堵嚴(yan)密。注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)管(guan)(guan)(guan)(guan)(guan)(guan)宜設置在結(jie)構中(zhong)線位置，任意一(yi)側混(hun)凝(ning)土的(de)厚度不(bu)得小于100mm。聲(sheng)(sheng)(sheng)測(ce)(ce)管(guan)(guan)(guan)(guan)(guan)(guan)聲(sheng)(sheng)(sheng)測(ce)(ce)管(guan)(guan)(guan)(guan)(guan)(guan)(SonicLoggingPipe)是(shi)現不(bu)可(ke)少的(de)聲(sheng)(sheng)(sheng)波檢(jian)(jian)測(ce)(ce)管(guan)(guan)(guan)(guan)(guan)(guan)，利用(yong)聲(sheng)(sheng)(sheng)測(ce)(ce)管(guan)(guan)(guan)(guan)(guan)(guan)可(ke)以(yi)檢(jian)(jian)測(ce)(ce)出一(yi)根(gen)樁的(de)質(zhi)量(liang)好壞，聲(sheng)(sheng)(sheng)測(ce)(ce)管(guan)(guan)(guan)(guan)(guan)(guan)是(shi)灌(guan)注(zhu)(zhu)(zhu)(zhu)樁進行(xing)(xing)超(chao)(chao)聲(sheng)(sheng)(sheng)檢(jian)(jian)測(ce)(ce)法時(shi)(shi)探頭進入樁身內部(bu)(bu)的(de)通道。它(ta)是(shi)灌(guan)注(zhu)(zhu)(zhu)(zhu)樁超(chao)(chao)聲(sheng)(sheng)(sheng)檢(jian)(jian)測(ce)(ce)系(xi)統(tong)(tong)的(de)重要(yao)組成(cheng)部(bu)(bu)分，它(ta)在樁內的(de)預(yu)埋(mai)方式(shi)及其(qi)在樁的(de)橫截面上(shang)的(de)布置形式(shi)，將直接(jie)影響(xiang)檢(jian)(jian)測(ce)(ce)結(jie)果。因(yin)此。導(dao)管(guan)(guan)(guan)(guan)(guan)(guan)注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)時(shi)(shi)，尾部(bu)(bu)應設封堵塞(sai)，當灌(guan)注(zhu)(zhu)(zhu)(zhu)水泥漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)時(shi)(shi)，應在封堵塞(sai)上(shang)設注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)(jiang)孔和排氣孔。

隨后管(guan)(guan)(guan)棚法(fa)(fa)被(bei)用(yong)(yong)于城市地下鐵道的(de)(de)(de)暗挖(wa)施(shi)工(gong)(gong)，在(zai)建筑物密(mi)集、交(jiao)通繁忙(mang)的(de)(de)(de)城市中心(xin)地區．采用(yong)(yong)明挖(wa)法(fa)(fa)施(shi)工(gong)(gong)地下工(gong)(gong)程必須拆(chai)遷大量(liang)的(de)(de)(de)地層管(guan)(guan)(guan)網和(he)地面(mian)建筑物，隨著人(ren)們(men)對(dui)環境(jing)保(bao)(bao)護(hu)的(de)(de)(de)呼聲越(yue)來(lai)越(yue)高(gao)及(ji)對(dui)環保(bao)(bao)的(de)(de)(de)日(ri)益重(zhong)視，承(cheng)包商們(men)不得不放(fang)棄(qi)既影響交(jiao)通又不利于環境(jing)保(bao)(bao)護(hu)的(de)(de)(de)明挖(wa)法(fa)(fa)而改用(yong)(yong)暗挖(wa)施(shi)工(gong)(gong)法(fa)(fa)，管(guan)(guan)(guan)棚法(fa)(fa)作(zuo)為一種重(zhong)要的(de)(de)(de)暗挖(wa)施(shi)工(gong)(gong)法(fa)(fa)在(zai)日(ri)本、美國(guo)及(ji)歐洲各(ge)國(guo)被(bei)采用(yong)(yong)。管(guan)(guan)(guan)棚鉆(zhan)(zhan)機(ji)是管(guan)(guan)(guan)棚法(fa)(fa)施(shi)工(gong)(gong)技術中關鍵的(de)(de)(de)設備，它的(de)(de)(de)作(zuo)用(yong)(yong)是沿著隧道斷面(mian)外(wai)輪(lun)廓超(chao)前(qian)鉆(zhan)(zhan)進并安(an)設管(guan)(guan)(guan)棚。管(guan)(guan)(guan)棚法(fa)(fa)施(shi)工(gong)(gong)采用(yong)(yong)的(de)(de)(de)是普通水平鉆(zhan)(zhan)機(ji)．隨著管(guan)(guan)(guan)棚法(fa)(fa)大量(liang)應用(yong)(yong)．管(guan)(guan)(guan)棚鉆(zhan)(zhan)機(ji)應運而生。超(chao)前(qian)支護(hu)方法(fa)(fa)主要包括：管(guan)(guan)(guan)棚法(fa)(fa)，機(ji)械預切糟法(fa)(fa)，超(chao)前(qian)小導管(guan)(guan)(guan)法(fa)(fa)，超(chao)前(qian)錨桿法(fa)(fa)、凍結(jie)法(fa)(fa)等(deng)等(deng)。遵(zun)義中管(guan)(guan)(guan)棚管(guan)(guan)(guan)

超前(qian)支護主要適用于(yu)圍巖應力較(jiao)小、地(di)下水較(jiao)少、巖體軟弱(ruo)破碎、開挖面可能坍塌的隧道。南寧塑料管(guan)棚管(guan)

管棚管施工要求：

（1）為保證成孔(kong)(kong)質(zhi)量，防止鄰孔(kong)(kong)鉆(zhan)進(jin)時前面(mian)的成孔(kong)(kong)坍塌，鉆(zhan)孔(kong)(kong)間(jian)隔進(jin)行。先鉆(zhan)奇(qi)數(shu)孔(kong)(kong)，后鉆(zhan)偶數(shu)孔(kong)(kong)，成孔(kong)(kong)直徑為φ140mm，以便(bian)順利安裝φ108×6mm鋼花管(guan)。即(ji)采用大引導孔(kong)(kong)施工(gong)，很大程度上克服在頂管(guan)施工(gong)作業(ye)中送管(guan)難的情(qing)況發生。

（2）施作(zuo)長(chang)管(guan)(guan)(guan)棚時(shi)（φ108×6mm），打孔(kong)角度洞(dong)口段為1°～3°，環向(xiang)間(jian)距40cm，每(mei)根(gen)長(chang)40m（每(mei)節長(chang)9m，采(cai)用長(chang)89cm套管(guan)(guan)(guan)連(lian)接），施作(zuo)時(shi)每(mei)段應交錯搭接3m，管(guan)(guan)(guan)棚管(guan)(guan)(guan)上按(an)間(jian)距15cm梅花形鉆10mm的小孔(kong)。1節管(guan)(guan)(guan)棚管(guan)(guan)(guan)頂端做成錐型，以便頂進。φ108×6mm管(guan)(guan)(guan)棚管(guan)(guan)(guan)采(cai)用4.0m和6.0m兩(liang)種規格，奇數(shu)孔(kong)首根(gen)4.0m，偶數(shu)孔(kong)首根(gen)6.0m，其余(yu)的均為6.0m，以避免管(guan)(guan)(guan)棚管(guan)(guan)(guan)接頭(tou)在(zai)同一斷(duan)面上。管(guan)(guan)(guan)棚管(guan)(guan)(guan)采(cai)用套管(guan)(guan)(guan)聯接。

（3）為(wei)了確(que)保鉆(zhan)(zhan)(zhan)桿接(jie)頭有足夠的(de)強度、剛度和韌性，鉆(zhan)(zhan)(zhan)桿連接(jie)套(tao)應與鉆(zhan)(zhan)(zhan)桿材(cai)質一致，兩端加工內螺紋（配合鉆(zhan)(zhan)(zhan)桿端外螺扣(kou)），連接(jie)套(tao)的(de)壁(bi)厚≥10mm。為(wei)防止鉆(zhan)(zhan)(zhan)桿在(zai)推力(li)和振動力(li)的(de)雙(shuang)重作用下，上下顫動，導致鉆(zhan)(zhan)(zhan)孔(kong)不(bu)直，鉆(zhan)(zhan)(zhan)孔(kong)時，應把扶(fu)直器套(tao)在(zai)鉆(zhan)(zhan)(zhan)桿上，隨鉆(zhan)(zhan)(zhan)桿向前鉆(zhan)(zhan)(zhan)進向前平移。南寧塑料管棚管

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