文章來源:中國冶金科工集團公(gong)司 發布(bu)時(shi)間:2008-10-29
中冶(ye)寶冶(ye)參與(yu)邯鄲市生態(tai)水網改造高級渠恢復趙王城改線工程(cheng),目前(qian),各項施工任務按施工計劃進展順利,質量(liang)在控(kong)制之(zhi)中。
邯鄲市(shi)生態水網改造高(gao)級渠(qu)恢復(fu)工程(cheng),是(shi)邯鄲市(shi)政府(fu)根據城市(shi)發(fa)展(zhan)的需要,對(dui)市(shi)西區太行山脈丘(qiu)陵灌溉區域配套日益完善的整體規(gui)劃,是(shi)造福于民的工程(cheng)。中(zhong)冶(ye)寶(bao)冶(ye)承擔(dan)高(gao)級渠(qu)恢復(fu)工程(cheng)趙王城改線(xian)隧洞(dong)施工,施工工程(cheng)為總承包項目,采用頂管施工方案,管道長度為2000米,采用DN2600頂進施工,用鋼筋混凝土專用管道,埋深8—27米左右(you)。
高級(ji)渠恢(hui)復工(gong)(gong)程(cheng)(cheng)趙王(wang)城改線(xian)隧道頂(ding)管(guan)(guan)工(gong)(gong)程(cheng)(cheng)地(di)(di)處地(di)(di)層(ceng)復雜,為第(di)三(san)系沉(chen)積(ji)物(wu)(wu)和第(di)四系松散沉(chen)積(ji)物(wu)(wu),以粘土(tu)、亞(ya)(ya)粘土(tu)、亞(ya)(ya)砂土(tu)夾(jia)砂層(ceng)及礫石層(ceng)為主,給頂(ding)管(guan)(guan)施(shi)(shi)工(gong)(gong)帶來(lai)極大(da)不(bu)便。中冶(ye)寶冶(ye)施(shi)(shi)工(gong)(gong)項(xiang)目部(bu)克服(fu)各種不(bu)利(li)地(di)(di)質因素,在(zai)2公里(li)長的(de)(de)(de)(de)作業點采取多點開花、三(san)個(ge)(ge)頂(ding)管(guan)(guan)井(jing)(jing)同時施(shi)(shi)工(gong)(gong)的(de)(de)(de)(de)做法,保(bao)證(zheng)施(shi)(shi)工(gong)(gong)在(zai)節點期內迅速展開。面(mian)對(dui)由于地(di)(di)質條件的(de)(de)(de)(de)復雜造(zao)成(cheng)頂(ding)管(guan)(guan)井(jing)(jing)的(de)(de)(de)(de)沉(chen)降不(bu)均(jun),項(xiang)目部(bu)質量技術人員就所遇到的(de)(de)(de)(de)工(gong)(gong)程(cheng)(cheng)問(wen)題進行(xing)攻關,并根(gen)據(ju)每個(ge)(ge)頂(ding)管(guan)(guan)井(jing)(jing)在(zai)施(shi)(shi)工(gong)(gong)過程(cheng)(cheng)中所遇到的(de)(de)(de)(de)不(bu)同土(tu)質結構采取不(bu)同的(de)(de)(de)(de)施(shi)(shi)工(gong)(gong)方法。特別是(shi)對(dui)2#沉(chen)井(jing)(jing)的(de)(de)(de)(de)糾偏方式,項(xiang)目部(bu)采用了液(ye)壓頂(ding)及井(jing)(jing)外土(tu)方卸載相結合的(de)(de)(de)(de)方式來(lai)使沉(chen)降不(bu)均(jun)勻(yun)的(de)(de)(de)(de)沉(chen)井(jing)(jing)均(jun)勻(yun)下沉(chen)。
中(zhong)(zhong)冶(ye)寶(bao)冶(ye)還對已(yi)施工的(de)(de)各個(ge)頂管(guan)井進行量進行質量評價。經檢查,各個(ge)頂管(guan)井的(de)(de)施工質量良好。在深基坑施工過(guo)程中(zhong)(zhong)采用寶(bao)鋼的(de)(de)標準對現場施工隊伍進行了(le)管(guan)理,各項安全(quan)措施到位。目(mu)前,第一(yi)節段2號井-1號井頂管(guan)工程11月初開(kai)頂,頂管(guan)管(guan)材已(yi)經生產100條節。