水(shui)壓光面(mian)(mian)(mian)爆破技術(shu)在(zai)隧道(dao)掘(jue)進作業(ye)中的(de)實際應用。提(ti)(ti)升光面(mian)(mian)(mian)爆破水(shui)平、嚴抓隧道(dao)超挖管(guan)控進行(xing)了介紹。聚能水(shui)壓光面(mian)(mian)(mian)爆破工(gong)(gong)(gong)(gong)藝技術(shu)很成熟、可操作性很強、材料(liao)成本(ben)很低、施(shi)工(gong)(gong)(gong)(gong)速(su)度(du)很快、節能環保效果(guo)很顯著、經(jing)濟效益社會效益很高。一是(shi)(shi)要(yao)(yao)提(ti)(ti)高對(dui)推(tui)廣該項(xiang)技術(shu)重要(yao)(yao)性和必(bi)然性的(de)認識(shi);二是(shi)(shi)要(yao)(yao)樹立(li)(li)必(bi)須采取聚能水(shui)壓光面(mian)(mian)(mian)爆破的(de)意識(shi);三是(shi)(shi)要(yao)(yao)堅(jian)持(chi)培訓、示范(fan)、監(jian)(jian)督“三位一體”;四(si)是(shi)(shi)要(yao)(yao)制定切(qie)實的(de)獎(jiang)懲制度(du);五是(shi)(shi)要(yao)(yao)建(jian)立(li)(li)檢查監(jian)(jian)督機制,持(chi)續(xu)促進該項(xiang)技術(shu)的(de)深入(ru)推(tui)廣。在(zai)隧道(dao)施(shi)工(gong)(gong)(gong)(gong)的(de)現場(chang)管(guan)理、科技創新、人才培養、經(jing)濟效益等方(fang)面(mian)(mian)(mian)的(de)不足。建(jian)議對(dui)施(shi)工(gong)(gong)(gong)(gong)一線基礎技術(shu)工(gong)(gong)(gong)(gong)作扎實推(tui)進;對(dui)新工(gong)(gong)(gong)(gong)藝、先(xian)進工(gong)(gong)(gong)(gong)法(fa)要(yao)(yao)深入(ru)學(xue)習鉆(zhan)研;對(dui)消(xiao)極懈怠(dai)、故步自(zi)封的(de)思想要(yao)(yao)堅(jian)決抵制。
是將炸藥裝在(zai)聚(ju)能管內,兩(liang)頭均(jun)放置了(le)水(shui)袋(dai),聚(ju)能管爆(bao)炸產(chan)生的(de)高(gao)溫高(gao)壓射流(liu),讓水(shui)袋(dai)產(chan)生“水(shui)楔(xie)”效應,使圍(wei)巖裂(lie)縫加劇延伸擴展(zhan)。它是在(zai)水(shui)壓光面爆(bao)破(po)基礎(chu)上發展(zhan)起來的(de)一項新技(ji)術(shu),區別只是在(zai)周邊眼(yan)中安裝專用(yong)線性(xing)聚(ju)能藥管替代常規爆(bao)破(po)藥卷和傳爆(bao)線,只要(yao)做到(dao)(dao)(dao)七大(da)(da)關(guan)鍵環(huan)節:水(shui)袋(dai)挺拔飽滿、炮泥(ni)軟硬適(shi)中、水(shui)袋(dai)裝填(tian)到(dao)(dao)(dao)底(di)、炮泥(ni)回填(tian)到(dao)(dao)(dao)口、木棍逐節搗(dao)固(gu)、水(shui)藥緊密(mi)相連(lian)、槽面必須平行,就(jiu)能對控制超欠挖起到(dao)(dao)(dao)良好效果。在(zai)推廣水(shui)壓爆(bao)破(po)的(de)基礎(chu)上,去年9月,水(shui)壓聚(ju)能爆(bao)破(po)的(de)成果上,今年更為深入地在(zai)興泉鐵路大(da)(da)嶺隧道、牡(mu)佳鐵路麻山隧道采用(yong)了(le)此(ci)項技(ji)術(shu),積累了(le)成功經(jing)驗(yan)。
預(yu)裂(lie)與光(guang)面(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)技術(shu)的(de)歷(li)(li)史(shi)與現狀:預(yu)裂(lie)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)是沿設(she)計(ji)開(kai)挖邊(bian)界(jie)布置(zhi)密(mi)(mi)集炮孔(kong),采(cai)取不耦合(he)裝(zhuang)藥或裝(zhuang)填低威(wei)力炸藥,在(zai)主(zhu)(zhu)爆(bao)(bao)(bao)(bao)(bao)區(qu)(qu)之前起爆(bao)(bao)(bao)(bao)(bao),從(cong)而(er)在(zai)爆(bao)(bao)(bao)(bao)(bao)區(qu)(qu)與保(bao)留(liu)區(qu)(qu)之間(jian)形成預(yu)裂(lie)縫,以減弱主(zhu)(zhu)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)對保(bao)留(liu)巖體(ti)的(de)破(po)(po)壞并形成平整輪廓(kuo)面(mian)的(de)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)作(zuo)業。光(guang)面(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)是沿設(she)計(ji)開(kai)挖邊(bian)界(jie)布設(she)密(mi)(mi)集炮孔(kong),采(cai)用不耦合(he)裝(zhuang)藥或裝(zhuang)填低威(wei)力炸藥,在(zai)主(zhu)(zhu)爆(bao)(bao)(bao)(bao)(bao)區(qu)(qu)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)之后(hou)(hou)起爆(bao)(bao)(bao)(bao)(bao)的(de)以形成平整的(de)開(kai)挖輪廓(kuo)面(mian)的(de)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)作(zuo)業。爆(bao)(bao)(bao)(bao)(bao)破(po)(po)技術(shu)的(de)發展是先(xian)出現光(guang)面(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po),然后(hou)(hou)衍生發展為預(yu)裂(lie)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)。聚能管(guan)國(guo)內(nei)歷(li)(li)史(shi)與現狀,我國(guo)于1964~1965年(nian)在(zai)湖北陸水水電站(zhan)施工中做過淺孔(kong)預(yu)裂(lie)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)試驗,1965年(nian)鐵道部門在(zai)成昆鐵路(lu)建(jian)(jian)設(she)中開(kai)始試驗光(guang)面(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po),1977年(nian)在(zai)西延線張家船工點,全(quan)長近200m的(de)2000m2路(lu)塹邊(bian)坡全(quan)部采(cai)用光(guang)面(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po),爆(bao)(bao)(bao)(bao)(bao)破(po)(po)后(hou)(hou)邊(bian)坡平整穩定,殘留(liu)的(de)半(ban)孔(kong)清晰可見,是鐵路(lu)建(jian)(jian)設(she)中采(cai)用路(lu)塹光(guang)面(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)。
濮陽多向聚能管是由管體、前錐形定格帽、后定格堵構成,管體為塑性材料制成,呈管狀,管體外徑小于正常炮眼內徑,長度可隨爆破需要生產,管體兩端各有外螺紋,兩端外螺紋間有一縱向切縫,切縫間等距有加強筋,前錐形定格帽呈傘狀,傘形尖有一光孔,兩側直壁內徑有螺紋,與管體外徑前端螺紋配合,帽體外徑大于管體,后定格堵為一封蓋,外徑直徑大于管體外徑,與前錐形定格帽外徑一致,后定格堵內徑有螺紋,與管體外徑后端螺紋配合。專業多向聚能管可根(gen)據炮眼(yan)(yan)深(shen)度采用合適的聚(ju)能管(guan)(guan)管(guan)(guan)體,不需其他工(gong)具幫(bang)助送入炮眼(yan)(yan),切縫方向準確,兩端的前錐形定格(ge)帽和后(hou)定格(ge)堵外徑與炮眼(yan)(yan)內徑一致,保證聚(ju)能管(guan)(guan)管(guan)(guan)體同心,定向準確。且利于(yu)工(gong)業(ye)化(hua)生產(chan),作(zuo)業(ye)安全