文(wen)章來源(yuan)：國家電網公司 發布時間：2016-10-30
10月26日，由中國(guo)電(dian)科(ke)院牽頭的國(guo)家電(dian)網(wang)公司科(ke)技項(xiang)目“特(te)高壓大型組塔(ta)裝備的優化技術研究”順利通(tong)過驗收。驗收專家一(yi)致認為，項(xiang)目完(wan)成了合同規定(ding)的研究內容(rong)，同意項(xiang)目通(tong)過驗收，項(xiang)目成果可(ke)全面(mian)應(ying)用于特(te)高壓工程建設，將為提高我(wo)國(guo)輸電(dian)線路組塔(ta)施工技術水平提供技術保證。
長(chang)期以(yi)來(lai)，系列化單(dan)動(dong)臂(bei)落(luo)地(di)抱桿和雙平臂(bei)落(luo)地(di)抱桿等(deng)大型(xing)(xing)組塔(ta)施(shi)(shi)工(gong)(gong)裝(zhuang)備已經成功應用(yong)于特(te)高(gao)(gao)壓工(gong)(gong)程(cheng)建(jian)設，具有安(an)全(quan)保護裝(zhuang)置(zhi)齊全(quan)、施(shi)(shi)工(gong)(gong)安(an)全(quan)性(xing)高(gao)(gao)等(deng)特(te)點(dian)，但抱桿部(bu)分部(bu)件單(dan)件重量偏重，在地(di)形條件復雜、施(shi)(shi)工(gong)(gong)環境惡劣(lie)的(de)現場進行(xing)安(an)裝(zhuang)、組立、拆卸、轉場較為困(kun)難(nan)，而且現有鐵塔(ta)組立施(shi)(shi)工(gong)(gong)技術標(biao)準不能完全(quan)反映大型(xing)(xing)落(luo)地(di)抱桿組塔(ta)的(de)技術及(ji)工(gong)(gong)藝(yi)特(te)點(dian)。因此，工(gong)(gong)程(cheng)所結合工(gong)(gong)程(cheng)實際需(xu)求，開展了適(shi)用(yong)于特(te)高(gao)(gao)壓工(gong)(gong)程(cheng)的(de)單(dan)動(dong)臂(bei)、雙平臂(bei)落(luo)地(di)抱桿的(de)優(you)化技術研究(jiu)及(ji)其組塔(ta)施(shi)(shi)工(gong)(gong)、安(an)裝(zhuang)與驗收工(gong)(gong)藝(yi)研究(jiu)。
項(xiang)(xiang)(xiang)目基于SXD50單(dan)動(dong)臂落地(di)(di)(di)抱(bao)(bao)桿(gan)(gan)回(hui)轉總成(cheng)的(de)(de)結(jie)構(gou)特點及(ji)功能，提(ti)出(chu)了(le)(le)單(dan)動(dong)臂落地(di)(di)(di)抱(bao)(bao)桿(gan)(gan)回(hui)轉上支座的(de)(de)凹槽式結(jie)構(gou)優(you)化設計，減重(zhong)19%；針對SXD50落地(di)(di)(di)抱(bao)(bao)桿(gan)(gan)提(ti)出(chu)了(le)(le)平(ping)行(xing)四邊形結(jie)構(gou)的(de)(de)可(ke)(ke)(ke)搖動(dong)平(ping)衡(heng)臂，可(ke)(ke)(ke)實現抱(bao)(bao)桿(gan)(gan)桿(gan)(gan)身的(de)(de)后傾力(li)矩(ju)與工(gong)(gong)作前傾力(li)矩(ju)平(ping)衡(heng)；提(ti)出(chu)了(le)(le)T2T100雙平(ping)臂落地(di)(di)(di)抱(bao)(bao)桿(gan)(gan)結(jie)構(gou)優(you)化方案(an)(an)及(ji)施工(gong)(gong)工(gong)(gong)藝優(you)化方案(an)(an)，可(ke)(ke)(ke)有(you)效減少施工(gong)(gong)人員勞動(dong)強度，增(zeng)強裝(zhuang)備的(de)(de)工(gong)(gong)程適用性。項(xiang)(xiang)(xiang)目完成(cheng)了(le)(le)《單(dan)動(dong)臂落地(di)(di)(di)抱(bao)(bao)桿(gan)(gan)安(an)裝(zhuang)及(ji)驗收規(gui)程》等4項(xiang)(xiang)(xiang)標準報批稿，可(ke)(ke)(ke)規(gui)范大型鐵塔(ta)的(de)(de)組立施工(gong)(gong)工(gong)(gong)藝，提(ti)高施工(gong)(gong)安(an)全(quan)性，更好地(di)(di)(di)滿足輸電線路組塔(ta)施工(gong)(gong)需求(qiu)。
項目提出的(de)(de)常(chang)設式雙平臂收(shou)臂裝(zhuang)置、回轉平臺(tai)結構優化等技(ji)(ji)術(shu)已應(ying)用(yong)于T2T100、T2T80等雙平臂落地抱桿中，并在錫盟-山東特高壓交流(liu)工程中進行了(le)應(ying)用(yong)，有效減少(shao)了(le)施工人員的(de)(de)高空(kong)作業，降低了(le)施工強度，項目成(cheng)果(guo)可廣泛(fan)應(ying)用(yong)于大型落地抱桿的(de)(de)優化技(ji)(ji)術(shu)。