文章來源：中(zhong)國冶金(jin)科工集團公(gong)司 發布時間：2008-10-29
中冶寶冶參與邯(han)鄲市(shi)生態水網(wang)改(gai)造(zao)高級渠恢(hui)復趙(zhao)王城改(gai)線(xian)工(gong)程(cheng)，目前，各項施工(gong)任(ren)務按施工(gong)計劃進展順利，質量在控制之(zhi)中。
邯鄲市生態(tai)水網改造高級渠恢復工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)，是(shi)邯鄲市政府根(gen)據城市發(fa)展的需要，對(dui)市西區(qu)太行山脈丘陵灌(guan)溉區(qu)域配(pei)套日益完善的整體規劃，是(shi)造福于民的工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)。中冶(ye)寶冶(ye)承擔(dan)高級渠恢復工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)趙王城改線隧洞(dong)施工(gong)(gong)(gong)，施工(gong)(gong)(gong)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)為(wei)總承包項目，采(cai)(cai)用頂管(guan)施工(gong)(gong)(gong)方(fang)案(an)，管(guan)道長度(du)為(wei)2000米，采(cai)(cai)用DN2600頂進施工(gong)(gong)(gong)，用鋼(gang)筋混凝土(tu)專用管(guan)道，埋深(shen)8—27米左右。
高級(ji)渠恢(hui)復工(gong)程(cheng)趙王城改線隧(sui)道頂管(guan)工(gong)程(cheng)地處(chu)地層(ceng)復雜，為(wei)第(di)三系沉(chen)(chen)積物(wu)和第(di)四(si)系松散沉(chen)(chen)積物(wu)，以粘(zhan)土、亞粘(zhan)土、亞砂(sha)土夾砂(sha)層(ceng)及礫石層(ceng)為(wei)主(zhu)，給(gei)頂管(guan)施(shi)(shi)工(gong)帶來(lai)極大不便。中冶寶(bao)冶施(shi)(shi)工(gong)項(xiang)目(mu)部(bu)(bu)克(ke)服各種不利(li)地質(zhi)因素，在2公里長(chang)的(de)作業點(dian)采取多點(dian)開花、三個(ge)頂管(guan)井(jing)同時施(shi)(shi)工(gong)的(de)做(zuo)法，保證(zheng)施(shi)(shi)工(gong)在節點(dian)期內迅速(su)展開。面對(dui)由于(yu)地質(zhi)條件的(de)復雜造成頂管(guan)井(jing)的(de)沉(chen)(chen)降不均，項(xiang)目(mu)部(bu)(bu)質(zhi)量(liang)技術(shu)人員就所遇到(dao)的(de)工(gong)程(cheng)問題進(jin)行(xing)攻(gong)關(guan)，并根據每個(ge)頂管(guan)井(jing)在施(shi)(shi)工(gong)過(guo)程(cheng)中所遇到(dao)的(de)不同土質(zhi)結(jie)構(gou)采取不同的(de)施(shi)(shi)工(gong)方法。特別是對(dui)2#沉(chen)(chen)井(jing)的(de)糾偏方式，項(xiang)目(mu)部(bu)(bu)采用了液壓頂及井(jing)外土方卸載相(xiang)結(jie)合的(de)方式來(lai)使沉(chen)(chen)降不均勻(yun)的(de)沉(chen)(chen)井(jing)均勻(yun)下沉(chen)(chen)。
中冶(ye)寶冶(ye)還(huan)對已施(shi)工的(de)各(ge)個(ge)頂管井進(jin)行量(liang)(liang)進(jin)行質量(liang)(liang)評價(jia)。經檢(jian)查(cha)，各(ge)個(ge)頂管井的(de)施(shi)工質量(liang)(liang)良(liang)好。在(zai)深(shen)基坑施(shi)工過程(cheng)中采用寶鋼(gang)的(de)標準對現場施(shi)工隊(dui)伍進(jin)行了管理，各(ge)項安全(quan)措(cuo)施(shi)到位。目前，第一節段(duan)2號井－1號井頂管工程(cheng)11月初開頂，頂管管材已經生(sheng)產100條節。