堆(dui)積體(ti)(ti)錨(mao)索(suo)鉆孔跟(gen)管(guan)(guan)(guan)鉆進(jin)工(gong)(gong)(gong)(gong)藝技術的(de)(de)應(ying)用(yong)樓日新(成都(dou)理工(gong)(gong)(gong)(gong)大(da)(da)學,四川(chuan)(chuan)成都(dou)610059)關鍵詞:滑(hua)坡治理;沖擊跟(gen)管(guan)(guan)(guan)鉆進(jin);堆(dui)積體(ti)(ti);錨(mao)索(suo);抗(kang)滑(hua)樁;川(chuan)(chuan)藏公路工(gong)(gong)(gong)(gong)程摘要:川(chuan)(chuan)藏公路二郎山(shan)(shan)隧(sui)道(dao)是(shi)國(guo)(guo)家“九(jiu)五(wu)”重(zhong)點建設(she)工(gong)(gong)(gong)(gong)程。長期以(yi)來龍膽(dan)(dan)溪滑(hua)坡影(ying)響川(chuan)(chuan)藏公路這一交通大(da)(da)動脈,由于緊鄰公路的(de)(de)滑(hua)坡體(ti)(ti)規模(mo)大(da)(da),滑(hua)面(mian)(mian)深(shen)、穩定(ding)性差,設(she)計采(cai)用(yong)了較長的(de)(de)堆(dui)積體(ti)(ti)錨(mao)索(suo)(76m)和(he)較深(shen)的(de)(de)堆(dui)積體(ti)(ti)抗(kang)滑(hua)樁(65m),而在國(guo)(guo)內(nei)外還(huan)沒有類似(si)工(gong)(gong)(gong)(gong)程的(de)(de)成功經驗,特別是(shi)在松散堆(dui)積體(ti)(ti)中(zhong)進(jin)行大(da)(da)口徑跟(gen)管(guan)(guan)(guan)鉆進(jin),其難度很(hen)大(da)(da)。結合工(gong)(gong)(gong)(gong)程實(shi)踐,前面(mian)(mian)次成功開發對(dui)心式、自銳式跟(gen)管(guan)(guan)(guan)鉆具及配套的(de)(de)工(gong)(gong)(gong)(gong)藝技術,很(hen)好(hao)地解決了工(gong)(gong)(gong)(gong)程難題,并(bing)針對(dui)不同(tong)性狀的(de)(de)堆(dui)積體(ti)(ti)提出了相應(ying)的(de)(de)施工(gong)(gong)(gong)(gong)措施。B1工(gong)(gong)(gong)(gong)程滑(hua)坡體(ti)(ti)概況川(chuan)(chuan)藏公路二郎山(shan)(shan)隧(sui)道(dao)是(shi)國(guo)(guo)家“九(jiu)五(wu)”重(zhong)點建設(she)工(gong)(gong)(gong)(gong)程。龍膽(dan)(dan)溪滑(hua)坡(1號)位于四川(chuan)(chuan)省天全縣二郎山(shan)(shan)隧(sui)道(dao)東(dong)口龍膽(dan)(dan)溪右岸,國(guo)(guo)道(dao)318線(xian)K2729+920～K2730+425處(chu)。滑(hua)坡地形陡峻,平均(jun)坡度約43°,前后緣(yuan)海(hai)撥分別為(wei)(wei)1840m和(he)2135m。滑(hua)坡分東(dong)西兩塊(kuai)(kuai):K2729+920～K2730+165為(wei)(wei)東(dong)塊(kuai)(kuai),K2730+166～425為(wei)(wei)西塊(kuai)(kuai)。從監測資料和(he)工(gong)(gong)(gong)(gong)程施工(gong)(gong)(gong)(gong)所能揭示的(de)(de)情況看(kan),西塊(kuai)(kuai)滑(hua)體(ti)(ti)自公路為(wei)(wei)界(jie)分為(wei)(wei)上下多級(ji)(ji),下級(ji)(ji)又分為(wei)(wei)淺、中(zhong)、深(shen)三層滑(hua)面(mian)(mian)。其中(zhong)好(hao)活躍的(de)(de)是(shi)緊鄰公路的(de)(de)上級(ji)(ji)滑(hua)坡和(he)下級(ji)(ji)的(de)(de)第三層滑(hua)面(mian)(mian)。西塊(kuai)(kuai)規模(mo)大(da)(da),滑(hua)面(mian)(mian)深(shen)、穩定(ding)性差。跟(gen)管(guan)(guan)(guan)可(ke)以(yi)根據需要進(jin)行彎曲和(he)彎折，適應(ying)復(fu)雜的(de)(de)布(bu)線(xian)環境。山(shan)(shan)東(dong)實(shi)華機械跟(gen)管(guan)(guan)(guan)廠家供應(ying)

排水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)道鋼板內(nei)襯(chen)修(xiu)(xiu)改(gai)，適用(yong)于大(da)口(kou)徑管(guan)(guan)(guan)(guan)道接口(kou)錯位、滲漏的(de)(de)免(mian)開(kai)挖接口(kou)柔性修(xiu)(xiu)改(gai)工(gong)(gong)(gong)藝技術，具有(you)規劃(hua)合理(li)、實(shi)用(yong)性強、修(xiu)(xiu)改(gai)質量高(gao)、施(shi)工(gong)(gong)(gong)簡練(lian)、工(gong)(gong)(gong)期短、施(shi)工(gong)(gong)(gong)不受(shou)地(di)上(shang)交通(tong)(tong)、環境溫(wen)濕度的(de)(de)影響等特(te)點。修(xiu)(xiu)復流程(cheng)：通(tong)(tong)風(feng)檢(jian)(jian)測(ce)(ce)。翻(fan)開(kai)施(shi)工(gong)(gong)(gong)管(guan)(guan)(guan)(guan)段檢(jian)(jian)查(cha)(cha)井(jing)(jing)及前(qian)后檢(jian)(jian)查(cha)(cha)井(jing)(jing)自然通(tong)(tong)風(feng)或機械通(tong)(tong)風(feng)30分鐘，運(yun)用(yong)毒氣(qi)檢(jian)(jian)測(ce)(ce)儀對施(shi)工(gong)(gong)(gong)管(guan)(guan)(guan)(guan)段作(zuo)業(ye)井(jing)(jing)內(nei)進(jin)行(xing)上(shang)中下(xia)(xia)3個部(bu)(bu)位有(you)毒有(you)害氣(qi)體(ti)(ti)(ti)檢(jian)(jian)測(ce)(ce)。氣(qi)體(ti)(ti)(ti)檢(jian)(jian)測(ce)(ce)合格(ge)方(fang)可施(shi)作(zuo)業(ye)業(ye)，氣(qi)體(ti)(ti)(ti)檢(jian)(jian)測(ce)(ce)不合格(ge)須繼續通(tong)(tong)風(feng)，直(zhi)到(dao)氣(qi)體(ti)(ti)(ti)檢(jian)(jian)測(ce)(ce)合格(ge)。封(feng)(feng)(feng)堵(du)(du)導流。氣(qi)囊封(feng)(feng)(feng)堵(du)(du)加砌筑封(feng)(feng)(feng)堵(du)(du)墻封(feng)(feng)(feng)堵(du)(du)施(shi)工(gong)(gong)(gong)管(guan)(guan)(guan)(guan)段上(shang)游檢(jian)(jian)查(cha)(cha)井(jing)(jing)出水(shui)(shui)(shui)(shui)口(kou)和下(xia)(xia)面檢(jian)(jian)查(cha)(cha)井(jing)(jing)入水(shui)(shui)(shui)(shui)口(kou)，用(yong)水(shui)(shui)(shui)(shui)泵從上(shang)游封(feng)(feng)(feng)堵(du)(du)檢(jian)(jian)查(cha)(cha)井(jing)(jing)的(de)(de)前(qian)一個井(jing)(jing)將水(shui)(shui)(shui)(shui)導流至下(xia)(xia)面封(feng)(feng)(feng)堵(du)(du)檢(jian)(jian)查(cha)(cha)井(jing)(jing)的(de)(de)后一個井(jing)(jing)。施(shi)工(gong)(gong)(gong)前(qian)預(yu)處理(li)用(yong)高(gao)壓沖(chong)(chong)刷(shua)吸(xi)(xi)污(wu)車(che)對作(zuo)業(ye)管(guan)(guan)(guan)(guan)道進(jin)行(xing)沖(chong)(chong)刷(shua)，將淤積物沖(chong)(chong)刷(shua)到(dao)檢(jian)(jian)查(cha)(cha)井(jing)(jing)內(nei)，用(yong)吸(xi)(xi)污(wu)車(che)抽吸(xi)(xi)潔凈。沖(chong)(chong)刷(shua)水(shui)(shui)(shui)(shui)流方(fang)向宜依照排水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)流方(fang)向共(gong)同。管(guan)(guan)(guan)(guan)道外（或管(guan)(guan)(guan)(guan)內(nei)）注漿固(gu)化土(tu)體(ti)(ti)(ti)工(gong)(gong)(gong)藝原理(li)小管(guan)(guan)(guan)(guan)徑由路面向管(guan)(guan)(guan)(guan)道基層灌(guan)漿，灌(guan)漿資料(liao)首(shou)要有(you)聚氨酯、水(shui)(shui)(shui)(shui)泥基類等，現場應根據(ju)不同的(de)(de)實(shi)際需要進(jin)行(xing)選擇不同的(de)(de)資料(liao)針對存在洼(wa)陷變(bian)形、決裂滲漏水(shui)(shui)(shui)(shui)嚴峻部(bu)(bu)分的(de)(de)管(guan)(guan)(guan)(guan)道施(shi)行(xing)土(tu)體(ti)(ti)(ti)固(gu)化。小管(guan)(guan)(guan)(guan)徑土(tu)體(ti)(ti)(ti)固(gu)化施(shi)工(gong)(gong)(gong)①施(shi)工(gong)(gong)(gong)機械鉆孔(kong)(kong)機械：選用(yong)100型（或300型）工(gong)(gong)(gong)程(cheng)地(di)質鉆機，套(tao)管(guan)(guan)(guan)(guan)護壁(bi)(筆直(zhi)鉆孔(kong)(kong)時選用(yong))，或許選用(yong)跟(gen)(gen)管(guan)(guan)(guan)(guan)鉆機(選用(yong)108mm套(tao)管(guan)(guan)(guan)(guan)。青(qing)海(hai)同心跟(gen)(gen)管(guan)(guan)(guan)(guan)施(shi)工(gong)(gong)(gong)廠家跟(gen)(gen)管(guan)(guan)(guan)(guan)可以有(you)效地(di)減少(shao)電線的(de)(de)混亂和交叉，方(fang)便(bian)維(wei)護和檢(jian)(jian)修(xiu)(xiu)。

該(gai)【錨(mao)桿(gan)(gan)、錨(mao)索(suo)(suo)跟管(guan)造(zao)(zao)(zao)孔(kong)工藝(yi)施(shi)(shi)(shi)工說明】是由【大笑大甜(tian)】上傳分享，文(wen)(wen)檔一共【4】頁，該(gai)文(wen)(wen)檔可(ke)(ke)以(yi)在(zai)線(xian)閱讀(du)，需(xu)要了解更多關于【錨(mao)桿(gan)(gan)、錨(mao)索(suo)(suo)跟管(guan)造(zao)(zao)(zao)孔(kong)工藝(yi)施(shi)(shi)(shi)工說明】的(de)(de)內(nei)容，可(ke)(ke)以(yi)使(shi)用淘豆網的(de)(de)站內(nei)搜索(suo)(suo)功能，選(xuan)擇自己(ji)適合的(de)(de)文(wen)(wen)檔，以(yi)下文(wen)(wen)字是截取(qu)該(gai)文(wen)(wen)章內(nei)的(de)(de)部分文(wen)(wen)字，如(ru)需(xu)要獲得完整電(dian)子(zi)版，請下載此文(wen)(wen)檔到您(nin)的(de)(de)設(she)備，方(fang)便您(nin)編(bian)輯和打(da)印。錨(mao)桿(gan)(gan)、錨(mao)索(suo)(suo)跟管(guan)造(zao)(zao)(zao)孔(kong)工藝(yi)施(shi)(shi)(shi)工說明一、工程大要及地(di)(di)質(zhi)(zhi)(zhi)條件DK752+780~DK753+060段(duan)十級邊(bian)坡設(she)計防范為(wei)(wei)(wei)錨(mao)桿(gan)(gan)框架梁,、九級邊(bian)坡設(she)計防范為(wei)(wei)(wei)錨(mao)索(suo)(suo)框架梁,錨(mao)桿(gan)(gan)設(she)計長度12m,錨(mao)索(suo)(suo)設(she)計長度25m,九、十級邊(bian)坡內(nei)設(she)計地(di)(di)質(zhi)(zhi)(zhi)情況為(wei)(wei)(wei)粉(fen)砂質(zhi)(zhi)(zhi)泥巖(yan),褐黃(huang)色(se)(se)(se),淺灰色(se)(se)(se),灰綠色(se)(se)(se),棕紅色(se)(se)(se),弱風(feng)化,泥質(zhi)(zhi)(zhi)構造(zao)(zao)(zao),層狀(zhuang)構造(zao)(zao)(zao),主要礦物(wu)成分為(wei)(wei)(wei)黏(nian)土(tu)礦物(wu)及石英,巖(yan)質(zhi)(zhi)(zhi)軟,風(feng)干易崩解,層厚(hou)30m,IV級,δo=400kPa。依(yi)照現場(chang)勘查,DK752+780~DK753+060段(duan)九、十級邊(bian)坡內(nei)實質(zhi)(zhi)(zhi)地(di)(di)質(zhi)(zhi)(zhi)情況為(wei)(wei)(wei)粗圓礫土(tu),青灰色(se)(se)(se),稍(shao)濕,中密狀(zhuang),局部稍(shao)密,充(chong)填物(wu)為(wei)(wei)(wei)砂礫,層厚(hou)約(yue)15~20m,II級,δo=450kPa,與(yu)原設(she)計地(di)(di)質(zhi)(zhi)(zhi)情況不符,質(zhi)(zhi)(zhi)地(di)(di)不均,構造(zao)(zao)(zao)松弛,不能夠被鉆(zhan)(zhan)(zhan)(zhan)頭沖擊(ji)成粉(fen)狀(zhuang)碎塊后排出,造(zao)(zao)(zao)成阻(zu)力增大,鉆(zhan)(zhan)(zhan)(zhan)機無法旋轉,鉆(zhan)(zhan)(zhan)(zhan)進過程的(de)(de)擾動,造(zao)(zao)(zao)成已成孔(kong)段(duan)塌孔(kong),鉆(zhan)(zhan)(zhan)(zhan)桿(gan)(gan)波折(zhe)斷裂(lie),鉆(zhan)(zhan)(zhan)(zhan)具(ju)卡死,無法回收,因此采用“跟管(guan)”工藝(yi),導管(guan)與(yu)鉆(zhan)(zhan)(zhan)(zhan)機鉆(zhan)(zhan)(zhan)(zhan)頭同時鉆(zhan)(zhan)(zhan)(zhan)進。

全回(hui)(hui)轉(zhuan)全套(tao)管(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)機施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)工(gong)(gong)藝介(jie)紹#設備(bei)(bei)(bei)簡介(jie)全回(hui)(hui)轉(zhuan)全套(tao)管(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)機性(xing)(xing)能參數（日本車輛制(zhi)(zhi)造株(zhu)式會社）主要(yao)工(gong)(gong)作(zuo)范圍采(cai)用本設備(bei)(bei)(bei)對成墻或成樁(zhuang)遇到的(de)地(di)(di)(di)下(xia)障(zhang)(zhang)(zhang)礙(ai)物進(jin)(jin)行消(xiao)(xiao)掉，地(di)(di)(di)下(xia)障(zhang)(zhang)(zhang)礙(ai)物包括地(di)(di)(di)下(xia)鋼(gang)筋(jin)混凝(ning)土結(jie)構(gou)、地(di)(di)(di)下(xia)鋼(gang)結(jie)構(gou)、地(di)(di)(di)下(xia)孤(gu)石(shi)、巖(yan)層(ceng)等(deng);各(ge)種(zhong)(zhong)(zhong)(zhong)直(zhi)徑(jing)鉆(zhan)(zhan)(zhan)(zhan)孔(kong)(kong)灌注樁(zhuang)、預制(zhi)(zhi)樁(zhuang)拔(ba)(ba)除、清理;3、地(di)(di)(di)下(xia)結(jie)構(gou)咬(yao)合圍護(hu)樁(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，咬(yao)合樁(zhuang)直(zhi)徑(jing)2m~1m;地(di)(di)(di)下(xia)圍護(hu)結(jie)構(gou)冷(leng)縫(feng)、繞流缺陷封閉處理;臨時及(ji)長久(jiu)性(xing)(xing)鋼(gang)管(guan)(guan)柱精確(que)定位施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，即蓋挖法(fa)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)時，鋼(gang)立(li)柱的(de)精確(que)插入施(shi)(shi)(shi)(shi)(shi)工(gong)(gong);嵌巖(yan)樁(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，直(zhi)徑(jing)2m至1m鉆(zhan)(zhan)(zhan)(zhan)孔(kong)(kong)灌注樁(zhuang)穿越地(di)(di)(di)下(xia)溶(rong)洞(dong)、巖(yan)層(ceng)時，采(cai)用全套(tao)管(guan)(guan)跟(gen)進(jin)(jin)、切入施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)。一地(di)(di)(di)下(xia)障(zhang)(zhang)(zhang)礙(ai)物消(xiao)(xiao)掉施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)地(di)(di)(di)下(xia)障(zhang)(zhang)(zhang)礙(ai)物消(xiao)(xiao)掉施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)是利(li)用全回(hui)(hui)轉(zhuan)全套(tao)管(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)機的(de)夾(jia)(jia)緊(jin)系(xi)統，夾(jia)(jia)緊(jin)各(ge)種(zhong)(zhong)(zhong)(zhong)直(zhi)徑(jing)的(de)帶特(te)種(zhong)(zhong)(zhong)(zhong)刀頭(tou)特(te)制(zhi)(zhi)鋼(gang)套(tao)管(guan)(guan)，再通過專(zhuan)門(men)配備(bei)(bei)(bei)的(de)液(ye)壓(ya)動力站提(ti)供液(ye)壓(ya)動力，驅動全回(hui)(hui)轉(zhuan)鉆(zhan)(zhan)(zhan)(zhan)機上(shang)的(de)液(ye)壓(ya)馬達和升降(jiang)油(you)缸，將(jiang)鋼(gang)套(tao)管(guan)(guan)旋轉(zhuan)切入地(di)(di)(di)層(ceng)及(ji)地(di)(di)(di)下(xia)障(zhang)(zhang)(zhang)礙(ai)物，然(ran)后輔以(yi)實用帶自由(you)落鉤的(de)履帶吊、沖抓(zhua)斗、十(shi)字沖錘、楔形(xing)錘等(deng)設備(bei)(bei)(bei)、設施(shi)(shi)(shi)(shi)(shi)，將(jiang)套(tao)管(guan)(guan)內土體及(ji)障(zhang)(zhang)(zhang)礙(ai)物取出，從而將(jiang)地(di)(di)(di)下(xia)障(zhang)(zhang)(zhang)礙(ai)物消(xiao)(xiao)掉。二拔(ba)(ba)除各(ge)種(zhong)(zhong)(zhong)(zhong)直(zhi)徑(jing)鉆(zhan)(zhan)(zhan)(zhan)孔(kong)(kong)灌注樁(zhuang)、預制(zhi)(zhi)樁(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)拔(ba)(ba)除各(ge)類(lei)灌注樁(zhuang)、預制(zhi)(zhi)樁(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)是利(li)用全回(hui)(hui)轉(zhuan)全套(tao)管(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)機的(de)夾(jia)(jia)緊(jin)系(xi)統，夾(jia)(jia)緊(jin)各(ge)種(zhong)(zhong)(zhong)(zhong)直(zhi)徑(jing)的(de)帶特(te)種(zhong)(zhong)(zhong)(zhong)刀頭(tou)特(te)制(zhi)(zhi)鋼(gang)套(tao)管(guan)(guan)，再通過專(zhuan)門(men)配備(bei)(bei)(bei)的(de)液(ye)壓(ya)動力站提(ti)供液(ye)壓(ya)動力。跟(gen)管(guan)(guan)可以(yi)根據需要(yao)進(jin)(jin)行防水和防塵處理，提(ti)高電(dian)線的(de)可靠性(xing)(xing)。

由于原(yuan)地質礦(kuang)產(chan)部(bu)在部(bu)標(biao)《DZ3-79》中規定了鉆(zhan)(zhan)機(ji)(ji)(ji)類別標(biao)志(zhi)，均全部(bu)用(yong)(yong)漢(han)語拼音字母(mu)標(biao)注。立(li)軸式(shi)鉆(zhan)(zhan)機(ji)(ji)(ji)應(ying)用(yong)(yong)較為(wei)廣。原(yuan)地質礦(kuang)產(chan)部(bu)立(li)軸式(shi)鉆(zhan)(zhan)機(ji)(ji)(ji)系列(lie)(lie)定名(ming)為(wei)XY型(xing)，原(yuan)冶(ye)金(jin)工(gong)(gong)業部(bu)立(li)軸式(shi)鉆(zhan)(zhan)機(ji)(ji)(ji)系列(lie)(lie)定名(ming)為(wei)YL（冶(ye)立(li)）型(xing)，有色金(jin)屬工(gong)(gong)業總公司立(li)軸式(shi)鉆(zhan)(zhan)機(ji)(ji)(ji)系列(lie)(lie)定名(ming)為(wei)CS（穿山）型(xing)。原(yuan)煤炭工(gong)(gong)業部(bu)立(li)軸式(shi)鉆(zhan)(zhan)機(ji)(ji)(ji)系列(lie)(lie)定名(ming)為(wei)TK（探礦(kuang)）型(xing)。[1]全液(ye)(ye)(ye)壓(ya)(ya)履(lv)帶式(shi)煤礦(kuang)坑(keng)道鉆(zhan)(zhan)機(ji)(ji)(ji)全液(ye)(ye)(ye)壓(ya)(ya)履(lv)帶式(shi)煤礦(kuang)坑(keng)道鉆(zhan)(zhan)機(ji)(ji)(ji)是在總結國(guo)內外(wai)先進鉆(zhan)(zhan)機(ji)(ji)(ji)基礎上研(yan)制開發的新型(xing)一體式(shi)履(lv)帶全液(ye)(ye)(ye)壓(ya)(ya)坑(keng)道鉆(zhan)(zhan)機(ji)(ji)(ji)。鉆(zhan)(zhan)機(ji)(ji)(ji)采用(yong)(yong)進口液(ye)(ye)(ye)壓(ya)(ya)系統，鋼制礦(kuang)用(yong)(yong)履(lv)帶底盤，全液(ye)(ye)(ye)壓(ya)(ya)動(dong)力頭三(san)維鉸接(jie)伸縮等新型(xing)機(ji)(ji)(ji)構。具有轉矩高，無級(ji)調速(su)，好的多(duo)角度鉆(zhan)(zhan)孔(kong)開孔(kong)快速(su)定位，給進和(he)起拔(ba)能(neng)力大，操作(zuo)(zuo)簡單，靈(ling)活可靠，勞動(dong)強(qiang)度低，工(gong)(gong)作(zuo)(zuo)效(xiao)率高等特點。主要適用(yong)(yong)于煤礦(kuang)及非煤礦(kuang)山井下水(shui)氣(qi)。跟管可以防(fang)止電線(xian)被(bei)人為(wei)損壞(huai)或非法接(jie)觸，提高安全性。河南(nan)高性能(neng)跟管性能(neng)

跟管是一種用于(yu)固定和保護電線、電纜等的(de)管道(dao)。山東實華機械跟管廠家(jia)供應

工(gong)(gong)(gong)字鋼(gang)(gang)接(jie)頭(tou)采(cai)用10mm厚鋼(gang)(gang)板焊(han)接(jie)成(cheng)，與鋼(gang)(gang)筋(jin)籠焊(han)接(jie)牢固。先施工(gong)(gong)(gong)一(yi)期(qi)(qi)槽(cao)(cao)(cao)(cao)(cao)段(duan)，一(yi)期(qi)(qi)槽(cao)(cao)(cao)(cao)(cao)段(duan)澆(jiao)(jiao)(jiao)(jiao)注(zhu)混(hun)凝土(tu)前在工(gong)(gong)(gong)字鋼(gang)(gang)背后(hou)(hou)回填土(tu)或碎(sui)石，在二(er)期(qi)(qi)槽(cao)(cao)(cao)(cao)(cao)段(duan)成(cheng)槽(cao)(cao)(cao)(cao)(cao)結(jie)束(shu)后(hou)(hou)用鋼(gang)(gang)刷進(jin)行接(jie)頭(tou)刷壁處理。吊(diao)放二(er)期(qi)(qi)鋼(gang)(gang)筋(jin)籠端頭(tou)向內(nei)收(shou)15mm，便于二(er)期(qi)(qi)槽(cao)(cao)(cao)(cao)(cao)段(duan)與一(yi)期(qi)(qi)槽(cao)(cao)(cao)(cao)(cao)段(duan)端頭(tou)相互嵌套，形成(cheng)整體。鋼(gang)(gang)筋(jin)籠加(jia)工(gong)(gong)(gong)與吊(diao)裝鋼(gang)(gang)筋(jin)籠制作應(ying)確(que)保(bao)鋼(gang)(gang)筋(jin)的(de)型號、間距(ju)、數量準確(que)，同時(shi)(shi)預先確(que)定(ding)澆(jiao)(jiao)(jiao)(jiao)筑(zhu)(zhu)(zhu)混(hun)凝土(tu)用導管(guan)(guan)的(de)位置。鋼(gang)(gang)筋(jin)籠的(de)起吊(diao)、運輸和吊(diao)放應(ying)根據(ju)重量選取主、副吊(diao)設備，并進(jin)行吊(diao)點設計及加(jia)固。吊(diao)裝過程中不(bu)得(de)產生不(bu)能恢復的(de)變形，插入鋼(gang)(gang)筋(jin)籠時(shi)(shi)應(ying)對準單元槽(cao)(cao)(cao)(cao)(cao)段(duan)中心，垂直而又準確(que)的(de)插入槽(cao)(cao)(cao)(cao)(cao)內(nei)。水(shui)(shui)下(xia)混(hun)凝土(tu)澆(jiao)(jiao)(jiao)(jiao)筑(zhu)(zhu)(zhu)槽(cao)(cao)(cao)(cao)(cao)段(duan)長(chang)度(du)不(bu)大于6m時(shi)(shi)，混(hun)凝土(tu)宜(yi)采(cai)用兩根導管(guan)(guan)同時(shi)(shi)澆(jiao)(jiao)(jiao)(jiao)筑(zhu)(zhu)(zhu)，槽(cao)(cao)(cao)(cao)(cao)段(duan)長(chang)度(du)大于6m時(shi)(shi)，混(hun)凝土(tu)宜(yi)采(cai)用三(san)根導管(guan)(guan)同時(shi)(shi)澆(jiao)(jiao)(jiao)(jiao)筑(zhu)(zhu)(zhu)。每根導管(guan)(guan)分擔的(de)澆(jiao)(jiao)(jiao)(jiao)筑(zhu)(zhu)(zhu)面(mian)(mian)積(ji)應(ying)基本均等。鋼(gang)(gang)筋(jin)籠就位后(hou)(hou)應(ying)及時(shi)(shi)澆(jiao)(jiao)(jiao)(jiao)筑(zhu)(zhu)(zhu)混(hun)凝土(tu)，澆(jiao)(jiao)(jiao)(jiao)筑(zhu)(zhu)(zhu)面(mian)(mian)上升速度(du)不(bu)宜(yi)小于3m/h，其施工(gong)(gong)(gong)工(gong)(gong)(gong)藝與水(shui)(shui)下(xia)灌注(zhu)樁類似。山東實華機械跟管(guan)(guan)廠(chang)家供應(ying)

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