我國(guo)(guo)20世紀60年(nian)代(dai)利用(yong)斷裂(lie)力學對巖石(shi)損傷引(yin)起(qi)的(de)(de)裂(lie)紋擴展進(jin)行過(guo)試(shi)驗(yan)研(yan)(yan)究,為聚(ju)能(neng)爆破技(ji)術(shu)(shu)應(ying)用(yong)到工(gong)(gong)程做(zuo)了(le)(le)不少理(li)論分析,也取得一些進(jin)展。80年(nian)代(dai)中期開(kai)始(shi)進(jin)行應(ying)用(yong)研(yan)(yan)究,以北(bei)京礦(kuang)業學院為代(dai)表,著重研(yan)(yan)究了(le)(le)聚(ju)能(neng)藥(yao)(yao)包切(qie)(qie)割(ge)饑理(li)和應(ying)用(yong)。1987年(nian)淮(huai)南礦(kuang)業學院取得“雙面(mian)切(qie)(qie)割(ge)器”的(de)(de)zhuanli,1995年(nian)又取得“大(da)理(li)石(shi)花崗巖切(qie)(qie)割(ge)技(ji)術(shu)(shu)應(ying)用(yong)”zhuanli。1991年(nian)中國(guo)(guo)水電七(qi)局曾(ceng)試(shi)圖采用(yong)硬(ying)質紙加(jia)工(gong)(gong)聚(ju)能(neng)藥(yao)(yao)管(guan)成形聚(ju)能(neng)藥(yao)(yao)卷做(zuo)過(guo)聚(ju)能(neng)預裂(lie)爆破試(shi)驗(yan)研(yan)(yan)究,但(dan)終因當時(shi)的(de)(de)技(ji)術(shu)(shu)及工(gong)(gong)藝水平的(de)(de)限制無法用(yong)于正常(chang)施工(gong)(gong),但(dan)是他們開(kai)了(le)(le)橢圓雙極線(xian)性聚(ju)能(neng)結構(gou)試(shi)驗(yan)的(de)(de)先河(he)。雙聚(ju)能(neng)預裂(lie)與(yu)光(guang)面(mian)爆破綜合技(ji)術(shu)(shu)開(kai)創輪廓控制爆破新時(shi)代(dai)。
我(wo)國于1983年制定(ding)了(le)《水工(gong)建(jian)(jian)筑(zhu)物巖行基礎開(kai)挖工(gong)程(cheng)(cheng)施工(gong)技(ji)術(shu)(shu)規范》(sD 121l一1983)。自(zi)此(ci)(ci),在(zai)水利(li)水電建(jian)(jian)設中預裂(lie)(lie)爆(bao)(bao)破(po)(po)(po)與光(guang)(guang)面(mian)爆(bao)(bao)破(po)(po)(po)已成(cheng)為必須(xu)進行的(de)(de)保(bao)護邊(bian)坡質量(liang)的(de)(de)爆(bao)(bao)破(po)(po)(po)開(kai)挖技(ji)術(shu)(shu)措施。此(ci)(ci)后在(zai)此(ci)(ci)基礎上修訂的(de)(de)《水工(gong)建(jian)(jian)筑(zhu)物巖石(shi)(shi)基礎開(kai)挖工(gong)程(cheng)(cheng)施工(gong)技(ji)術(shu)(shu)規范》(SL 47一1994)以及(ji)在(zai)《水電水利(li)爆(bao)(bao)破(po)(po)(po)工(gong)程(cheng)(cheng)施工(gong)技(ji)術(shu)(shu)規范》(DL/T 5135—2001)和(he)《水工(gong)建(jian)(jian)筑(zhu)物巖石(shi)(shi)基礎開(kai)挖工(gong)程(cheng)(cheng)施工(gong)技(ji)術(shu)(shu)規范》(DL/T 5389~2007)中預裂(lie)(lie)爆(bao)(bao)破(po)(po)(po)與光(guang)(guang)面(mian)爆(bao)(bao)破(po)(po)(po)均被(bei)編入并有所改進,DL/T 5135—2001正(zheng)在(zai)修編為DL/T 5135—2012。鐵(tie)道部也不僅(jin)規定(ding)了(le)凡是Ⅲ級以上的(de)(de)巖石(shi)(shi)邊(bian)坡,設計(ji)(ji)邊(bian)坡坡度為1:0.1~1:0.75,在(zai)邊(bian)坡部位的(de)(de)爆(bao)(bao)破(po)(po)(po)設計(ji)(ji)和(he)施工(gong)都應采用光(guang)(guang)面(mian)爆(bao)(bao)破(po)(po)(po)或預裂(lie)(lie)爆(bao)(bao)破(po)(po)(po),并闡述(shu)了(le)光(guang)(guang)面(mian)(預裂(lie)(lie))爆(bao)(bao)破(po)(po)(po)施工(gong)技(ji)術(shu)(shu)設計(ji)(ji)的(de)(de)原則和(he)參數、安全(quan)措施,而且還明確了(le)路塹(qian)邊(bian)坡光(guang)(guang)面(mian)(預裂(lie)(lie))爆(bao)(bao)破(po)(po)(po)項目質量(liang)驗收檢(jian)測數量(liang)和(he)檢(jian)測方法。無疑(yi)該規程(cheng)(cheng)的(de)(de)實施,有力(li)地(di)推動和(he)促進了(le)光(guang)(guang)面(mian)(預裂(lie)(lie))爆(bao)(bao)破(po)(po)(po)技(ji)術(shu)(shu)在(zai)鐵(tie)路建(jian)(jian)設中的(de)(de)應用與發展。
水(shui)壓(ya)光(guang)面(mian)爆破(po)技術(shu)(shu)在隧道掘進(jin)(jin)作業(ye)中的(de)實(shi)際應(ying)用。提(ti)升(sheng)光(guang)面(mian)爆破(po)水(shui)平(ping)、嚴(yan)抓隧道超挖管(guan)控進(jin)(jin)行了介紹。聚能水(shui)壓(ya)光(guang)面(mian)爆破(po)工(gong)藝技術(shu)(shu)很(hen)成熟、可操作性很(hen)強、材料成本(ben)很(hen)低、施(shi)工(gong)速度(du)很(hen)快、節(jie)能環(huan)保效(xiao)果很(hen)顯(xian)著、經濟效(xiao)益(yi)社會效(xiao)益(yi)很(hen)高。一(yi)是(shi)要(yao)(yao)(yao)提(ti)高對推廣該(gai)(gai)項技術(shu)(shu)重要(yao)(yao)(yao)性和必(bi)然性的(de)認(ren)識;二是(shi)要(yao)(yao)(yao)樹(shu)立必(bi)須采取聚能水(shui)壓(ya)光(guang)面(mian)爆破(po)的(de)意識;三(san)是(shi)要(yao)(yao)(yao)堅持(chi)培(pei)訓(xun)、示(shi)范(fan)、監督“三(san)位一(yi)體(ti)”;四是(shi)要(yao)(yao)(yao)制(zhi)定切實(shi)的(de)獎(jiang)懲制(zhi)度(du);五是(shi)要(yao)(yao)(yao)建(jian)(jian)立檢查監督機制(zhi),持(chi)續促進(jin)(jin)該(gai)(gai)項技術(shu)(shu)的(de)深(shen)入推廣。在隧道施(shi)工(gong)的(de)現場(chang)管(guan)理、科技創(chuang)新(xin)、人(ren)才培(pei)養(yang)、經濟效(xiao)益(yi)等方面(mian)的(de)不足。建(jian)(jian)議(yi)對施(shi)工(gong)一(yi)線基礎技術(shu)(shu)工(gong)作扎實(shi)推進(jin)(jin);對新(xin)工(gong)藝、先進(jin)(jin)工(gong)法要(yao)(yao)(yao)深(shen)入學習鉆研;對消極懈怠、故步(bu)自封(feng)的(de)思(si)想要(yao)(yao)(yao)堅決抵制(zhi)。
水壓(ya)(ya)光面(mian)爆(bao)破(po)技術(shu)(shu),是在水壓(ya)(ya)光面(mian)爆(bao)破(po)技術(shu)(shu)基礎上發(fa)展起來的(de)一項新技術(shu)(shu),其掏槽眼、輔助(zhu)眼裝(zhuang)藥結(jie)構和爆(bao)破(po)方式(shi)與(yu)水壓(ya)(ya)光面(mian)爆(bao)破(po)相(xiang)同,但在周(zhou)邊眼中安裝(zhuang)專用聚(ju)(ju)(ju)能(neng)管(guan)(guan)裝(zhuang)置替代常規爆(bao)破(po)藥卷和傳爆(bao)線(xian),利(li)用聚(ju)(ju)(ju)能(neng)管(guan)(guan)產生的(de)粒子射(she)流動(dong)能(neng)、高(gao)壓(ya)(ya)爆(bao)破(po)氣體應(ying)力及“氣楔(xie)”作用,形成平整(zheng)圓順的(de)開挖輪廓面(mian),對控(kong)制(zhi)超(chao)欠挖具(ju)有(you)良好效(xiao)(xiao)果(guo),有(you)效(xiao)(xiao)提升了隧道施(shi)工質量、進(jin)度和經(jing)濟效(xiao)(xiao)益。科學合理地利(li)用能(neng)源(yuan),提高(gao)能(neng)源(yuan)利(li)用效(xiao)(xiao)率,對節能(neng)減排也十分(fen)重要(yao)。利(li)用聚(ju)(ju)(ju)能(neng)管(guan)(guan)兩端的(de)水平開出的(de)聚(ju)(ju)(ju)能(neng)槽產生的(de)聚(ju)(ju)(ju)能(neng)射(she)流效(xiao)(xiao)應(ying)對巖石進(jin)行破(po)碎。據專家測算,由(you)于聚(ju)(ju)(ju)能(neng)管(guan)(guan)兩端聚(ju)(ju)(ju)能(neng)槽產生的(de)聚(ju)(ju)(ju)能(neng)切割(ge)效(xiao)(xiao)應(ying),其能(neng)效(xiao)(xiao)比提升一個量級。
在(zai)(zai)工程爆(bao)(bao)(bao)(bao)(bao)(bao)破(po)中,常用(yong)(yong)的(de)(de)(de)(de)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)方(fang)(fang)法(fa)有:電(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa)、導(dao)火索(suo)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa)、導(dao)爆(bao)(bao)(bao)(bao)(bao)(bao)索(suo)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa)、導(dao)爆(bao)(bao)(bao)(bao)(bao)(bao)管起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa)。電(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa)是(shi)利(li)用(yong)(yong)電(dian)(dian)(dian)能使雷(lei)管爆(bao)(bao)(bao)(bao)(bao)(bao)炸,進(jin)(jin)而(er)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)炸藥的(de)(de)(de)(de)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)芳法(fa)。它所需的(de)(de)(de)(de)器材有:電(dian)(dian)(dian)雷(lei)管、導(dao)線和起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)電(dian)(dian)(dian)源(yuan)。電(dian)(dian)(dian)爆(bao)(bao)(bao)(bao)(bao)(bao)網路的(de)(de)(de)(de)連接(jie)形(xing)式,要根據爆(bao)(bao)(bao)(bao)(bao)(bao)破(po)方(fang)(fang)法(fa)、爆(bao)(bao)(bao)(bao)(bao)(bao)破(po)規模、工程的(de)(de)(de)(de)重要性、所選(xuan)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)電(dian)(dian)(dian)源(yuan)及其起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)能力等(deng)進(jin)(jin)行選(xuan)擇,基本(ben)連接(jie)方(fang)(fang)式有:串聯、并聯、串并聯和并串聯等(deng)。電(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa)具(ju)有較安全、可靠、準(zhun)確、高效等(deng)優點,在(zai)(zai)國內外仍占有較大比重。在(zai)(zai)大、中型爆(bao)(bao)(bao)(bao)(bao)(bao)破(po)中,主(zhu)(zhu)要仍是(shi)用(yong)(yong)電(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)。特別是(shi)在(zai)(zai)有瓦斯、礦(kuang)塵爆(bao)(bao)(bao)(bao)(bao)(bao)炸的(de)(de)(de)(de)環(huan)境中,電(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)是(shi)主(zhu)(zhu)要的(de)(de)(de)(de)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)方(fang)(fang)法(fa)。但電(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)容易受各(ge)種(zhong)電(dian)(dian)(dian)信號(hao)的(de)(de)(de)(de)干(gan)擾而(er)發(fa)生早(zao)爆(bao)(bao)(bao)(bao)(bao)(bao),因此在(zai)(zai)有雜散電(dian)(dian)(dian)、靜電(dian)(dian)(dian)、雷(lei)電(dian)(dian)(dian)、射(she)頻電(dian)(dian)(dian)、高壓(ya)感應電(dian)(dian)(dian)的(de)(de)(de)(de)環(huan)境中,不(bu)能使用(yong)(yong)普通電(dian)(dian)(dian)雷(lei)管。
鎮江雙向爆破聚能管是由管體、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。專業雙向爆破聚能管可根據炮(pao)眼深度采用合適的聚(ju)能管(guan)管(guan)體,不需其他工(gong)具(ju)幫助送入炮(pao)眼,切縫方(fang)向準確(que),兩端(duan)的前錐形定格帽和后定格堵(du)外徑與炮(pao)眼內徑一致,保(bao)證聚(ju)能管(guan)管(guan)體同心,定向準確(que)。且利于工(gong)業(ye)化生產,作業(ye)安全