預(yu)裂(lie)(lie)與(yu)(yu)光(guang)面(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)技術(shu)的(de)(de)(de)歷史(shi)與(yu)(yu)現(xian)狀(zhuang):預(yu)裂(lie)(lie)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)是(shi)(shi)(shi)沿設(she)(she)計開(kai)(kai)挖(wa)邊(bian)(bian)(bian)界(jie)布置密集炮孔(kong),采取不耦合裝藥或裝填低威力炸藥,在(zai)主(zhu)爆(bao)(bao)(bao)(bao)區(qu)(qu)之前起爆(bao)(bao)(bao)(bao),從(cong)而(er)在(zai)爆(bao)(bao)(bao)(bao)區(qu)(qu)與(yu)(yu)保留區(qu)(qu)之間(jian)形成(cheng)預(yu)裂(lie)(lie)縫,以減弱主(zhu)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)對保留巖體的(de)(de)(de)破(po)(po)(po)(po)(po)(po)壞并形成(cheng)平整(zheng)輪廓(kuo)面(mian)(mian)的(de)(de)(de)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)作業(ye)。光(guang)面(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)是(shi)(shi)(shi)沿設(she)(she)計開(kai)(kai)挖(wa)邊(bian)(bian)(bian)界(jie)布設(she)(she)密集炮孔(kong),采用不耦合裝藥或裝填低威力炸藥,在(zai)主(zhu)爆(bao)(bao)(bao)(bao)區(qu)(qu)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)之后(hou)(hou)起爆(bao)(bao)(bao)(bao)的(de)(de)(de)以形成(cheng)平整(zheng)的(de)(de)(de)開(kai)(kai)挖(wa)輪廓(kuo)面(mian)(mian)的(de)(de)(de)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)作業(ye)。爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)技術(shu)的(de)(de)(de)發展(zhan)是(shi)(shi)(shi)先出現(xian)光(guang)面(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po),然后(hou)(hou)衍(yan)生發展(zhan)為預(yu)裂(lie)(lie)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)。聚能管國(guo)內歷史(shi)與(yu)(yu)現(xian)狀(zhuang),我(wo)國(guo)于1964~1965年在(zai)湖(hu)北陸水(shui)水(shui)電(dian)站施(shi)工(gong)中做(zuo)過淺孔(kong)預(yu)裂(lie)(lie)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)試驗,1965年鐵(tie)道部(bu)門(men)在(zai)成(cheng)昆鐵(tie)路建設(she)(she)中開(kai)(kai)始試驗光(guang)面(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po),1977年在(zai)西(xi)延線張家船工(gong)點,全(quan)長近200m的(de)(de)(de)2000m2路塹邊(bian)(bian)(bian)坡全(quan)部(bu)采用光(guang)面(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po),爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)后(hou)(hou)邊(bian)(bian)(bian)坡平整(zheng)穩定,殘留的(de)(de)(de)半孔(kong)清晰可(ke)見,是(shi)(shi)(shi)鐵(tie)路建設(she)(she)中采用路塹光(guang)面(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)。
聚(ju)能(neng)藥(yao)(yao)(yao)包(bao)(bao)(bao)破(po)碎法(fa)(fa)特(te)點是:不需要打眼(yan),因而不需要購買打眼(yan)設(she)備和(he)動力設(she)備;施(shi)工(gong)簡單(dan),施(shi)工(gong)進度(du)比淺(qian)(qian)(qian)眼(yan)爆(bao)(bao)(bao)破(po)法(fa)(fa)快安全性比普通淺(qian)(qian)(qian)眼(yan)爆(bao)(bao)(bao)破(po)法(fa)(fa)和(he)普通裸露藥(yao)(yao)(yao)包(bao)(bao)(bao)法(fa)(fa)好;勞動強度(du)比淺(qian)(qian)(qian)眼(yan)爆(bao)(bao)(bao)破(po)法(fa)(fa)低。制(zhi)造聚(ju)能(neng)藥(yao)(yao)(yao)包(bao)(bao)(bao)所采用(yong)的(de)(de)(de)(de)炸藥(yao)(yao)(yao)有:黑(hei)索金(jin)和(he)梯恩梯混合熔鑄(zhu)型;乳化(hua)油炸藥(yao)(yao)(yao)和(he)黑(hei)索金(jin)混裝型和(he)二號巖石硝(xiao)鉸炸藥(yao)(yao)(yao)壓制(zhi)型。根據使用(yong)的(de)(de)(de)(de)結果(guo)證明,選用(yong)密度(du)較大(da)和(he)爆(bao)(bao)(bao)速較高(gao)的(de)(de)(de)(de)炸藥(yao)(yao)(yao)制(zhi)造聚(ju)能(neng)藥(yao)(yao)(yao)包(bao)(bao)(bao)能(neng)獲得較好的(de)(de)(de)(de)破(po)碎效(xiao)果(guo)。這主要是由于(yu)它加工(gong)簡單(dan)和(he)破(po)碎能(neng)力較大(da)。在(zai)(zai)礦山由于(yu)二次破(po)碎消耗的(de)(de)(de)(de)藥(yao)(yao)(yao)包(bao)(bao)(bao)較多,而且金(jin)屬藥(yao)(yao)(yao)型罩(zhao)的(de)(de)(de)(de)加工(gong)費(fei)(fei)工(gong)又費(fei)(fei)材(cai)料,所以多不采用(yong)藥(yao)(yao)(yao)型罩(zhao)。國內生(sheng)產的(de)(de)(de)(de)一種用(yong)于(yu)破(po)碎大(da)塊的(de)(de)(de)(de)聚(ju)能(neng)藥(yao)(yao)(yao)包(bao)(bao)(bao),裝置(zhi)聚(ju)能(neng)藥(yao)(yao)(yao)包(bao)(bao)(bao)時,要將藥(yao)(yao)(yao)包(bao)(bao)(bao)垂直裝在(zai)(zai)大(da)塊的(de)(de)(de)(de)頂面上(shang),聚(ju)能(neng)穴朝(chao)下。藥(yao)(yao)(yao)包(bao)(bao)(bao)位(wei)置(zhi)應(ying)選在(zai)(zai)頂面的(de)(de)(de)(de)幾何(he)中(zhong)心(xin)或附(fu)近較平整(zheng)的(de)(de)(de)(de)地點。然(ran)后在(zai)(zai)上(shang)面覆蓋泥沙。
我國于1983年制定(ding)了(le)(le)《水工(gong)(gong)(gong)(gong)建筑(zhu)物(wu)巖行基(ji)礎(chu)(chu)(chu)開挖(wa)工(gong)(gong)(gong)(gong)程(cheng)(cheng)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)(ji)(ji)(ji)術規(gui)范》(sD 121l一1983)。自此,在(zai)(zai)水利(li)水電建設(she)(she)中預(yu)裂(lie)爆(bao)(bao)(bao)破(po)(po)(po)(po)與(yu)光(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)已成(cheng)為必須進(jin)(jin)行的(de)保護邊(bian)坡質量(liang)的(de)爆(bao)(bao)(bao)破(po)(po)(po)(po)開挖(wa)技(ji)(ji)(ji)(ji)術措施(shi)(shi)(shi)(shi)。此后在(zai)(zai)此基(ji)礎(chu)(chu)(chu)上修訂的(de)《水工(gong)(gong)(gong)(gong)建筑(zhu)物(wu)巖石基(ji)礎(chu)(chu)(chu)開挖(wa)工(gong)(gong)(gong)(gong)程(cheng)(cheng)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)(ji)(ji)(ji)術規(gui)范》(SL 47一1994)以及在(zai)(zai)《水電水利(li)爆(bao)(bao)(bao)破(po)(po)(po)(po)工(gong)(gong)(gong)(gong)程(cheng)(cheng)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)(ji)(ji)(ji)術規(gui)范》(DL/T 5135—2001)和(he)《水工(gong)(gong)(gong)(gong)建筑(zhu)物(wu)巖石基(ji)礎(chu)(chu)(chu)開挖(wa)工(gong)(gong)(gong)(gong)程(cheng)(cheng)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)(ji)(ji)(ji)術規(gui)范》(DL/T 5389~2007)中預(yu)裂(lie)爆(bao)(bao)(bao)破(po)(po)(po)(po)與(yu)光(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)均被編(bian)入并有所改(gai)進(jin)(jin),DL/T 5135—2001正在(zai)(zai)修編(bian)為DL/T 5135—2012。鐵(tie)道部也不僅(jin)規(gui)定(ding)了(le)(le)凡(fan)是Ⅲ級以上的(de)巖石邊(bian)坡,設(she)(she)計(ji)邊(bian)坡坡度為1:0.1~1:0.75,在(zai)(zai)邊(bian)坡部位(wei)的(de)爆(bao)(bao)(bao)破(po)(po)(po)(po)設(she)(she)計(ji)和(he)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)都應采用光(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)或預(yu)裂(lie)爆(bao)(bao)(bao)破(po)(po)(po)(po),并闡述了(le)(le)光(guang)面(mian)(預(yu)裂(lie))爆(bao)(bao)(bao)破(po)(po)(po)(po)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)(ji)(ji)(ji)術設(she)(she)計(ji)的(de)原則和(he)參數、安全措施(shi)(shi)(shi)(shi),而且還明確了(le)(le)路塹邊(bian)坡光(guang)面(mian)(預(yu)裂(lie))爆(bao)(bao)(bao)破(po)(po)(po)(po)項目(mu)質量(liang)驗(yan)收檢測數量(liang)和(he)檢測方(fang)法(fa)。無(wu)疑該(gai)規(gui)程(cheng)(cheng)的(de)實施(shi)(shi)(shi)(shi),有力地推動和(he)促進(jin)(jin)了(le)(le)光(guang)面(mian)(預(yu)裂(lie))爆(bao)(bao)(bao)破(po)(po)(po)(po)技(ji)(ji)(ji)(ji)術在(zai)(zai)鐵(tie)路建設(she)(she)中的(de)應用與(yu)發展。
在建造隧道的時候,人們首先想到的個方式,就是使用爆破技術,專業深孔爆破聚能管開山挖隧道修路,常規爆破技術需要使用數以噸計的炸,炸的威力十分巨大,但是在炸完之后,空氣中全是煙塵,根本無法進入,另外常規爆破炸出來的輪廓線凹凸不平,后期常常需要工人進一步修補輪廓線才能進行下一道工序,耗時耗力,那么有沒有其他的方式比常規爆破技術更好呢?2018年3月,央視報道了一場隧道爆破對比實驗,實驗采用兩種爆破技術,滴喲中是使用炸的常規爆破技術,第二種則是國人新發明的聚能水壓光面爆破技術,隨著聲聲巨響,這場對比試驗的結果超乎所有人的意料,深圳深孔爆破聚能管聚能水壓爆破技(ji)術(shu)的爆炸效果更好,而且爆破產(chan)生(sheng)的水霧能將煙塵覆(fu)蓋,起(qi)到降塵的作用,這(zhe)項爆破新(xin)方(fang)式(shi)得到了觀眾(zhong)們的認可。
發(fa)揮巨大(da)效力(li)的(de)關(guan)鍵又在其上(shang)面的(de)“聚(ju)能(neng)(neng)(neng)槽”上(shang)。項(xiang)目部目前采用的(de)聚(ju)能(neng)(neng)(neng)管(guan)有(you)兩個“聚(ju)能(neng)(neng)(neng)槽”,通過這兩個聚(ju)能(neng)(neng)(neng)槽的(de)作用讓(rang)爆(bao)炸(zha)的(de)威(wei)力(li)在隧(sui)道中切割出(chu)十分平順(shun)的(de)輪廓(kuo)線,的(de)控制了爆(bao)破(po)(po)量(liang),有(you)效管(guan)控了超挖欠挖的(de)現象。為(wei)了進一(yi)步嚴格(ge)控制開挖輪廓(kuo),達到提高光面爆(bao)破(po)(po)效果的(de)目的(de),并研(yan)究(jiu)出(chu)了聚(ju)能(neng)(neng)(neng)管(guan)上(shang)兩個“聚(ju)能(neng)(neng)(neng)槽”變為(wei)三個“聚(ju)能(neng)(neng)(neng)槽”的(de)發(fa)明(ming)(ming)設計,目前,該發(fa)明(ming)(ming)設計已(yi)經進入到了試生(sheng)產(chan)階段。未來(lai),三“聚(ju)能(neng)(neng)(neng)槽”設計的(de)聚(ju)能(neng)(neng)(neng)水壓爆(bao)破(po)(po)技術將推動中鐵十四(si)局四(si)公(gong)司張吉懷(huai)鐵路項(xiang)目部施工(gong)開展邁上(shang)一(yi)個新(xin)的(de)臺階,給(gei)項(xiang)目部帶來(lai)巨大(da)的(de)經濟(ji)效益。工(gong)程爆(bao)破(po)(po)技術經過幾十年的(de)發(fa)展,已(yi)經滲透(tou)到經濟(ji)建設的(de)眾多(duo)領(ling)域,特別為(wei)中國的(de)鐵路建設、礦山開采、城市拆(chai)舊定(ding)向爆(bao)破(po)(po)等做出(chu)了重要貢獻。