火(huo)(huo)索(suo)(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa),導(dao)(dao)(dao)(dao)火(huo)(huo)索(suo)(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa)是利用(yong)導(dao)(dao)(dao)(dao)火(huo)(huo)索(suo)(suo)(suo)傳(chuan)遞火(huo)(huo)焰點(dian)燃火(huo)(huo)雷(lei)(lei)管(guan)進而起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)炸(zha)藥(yao)。這(zhe)種(zhong)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa)所需的材料(liao)有(you):導(dao)(dao)(dao)(dao)火(huo)(huo)索(suo)(suo)(suo)、火(huo)(huo)雷(lei)(lei)管(guan)和(he)點(dian)火(huo)(huo)材料(liao)。導(dao)(dao)(dao)(dao)火(huo)(huo)索(suo)(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa)操作簡單(dan)、靈活,使用(yong)方(fang)(fang)便,成(cheng)本較(jiao)低,廣泛應用(yong)于(yu)小型(xing)爆(bao)(bao)(bao)(bao)(bao)(bao)破(po)和(he)掘進。由于(yu)導(dao)(dao)(dao)(dao)火(huo)(huo)索(suo)(suo)(suo)的速燃、緩燃等弊(bi)病,在爆(bao)(bao)(bao)(bao)(bao)(bao)破(po)中事故所占比重最大。不能(neng)多處裝藥(yao)同(tong)時起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)。導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)(bao)索(suo)(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa),用(yong)導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)(bao)索(suo)(suo)(suo)直接起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)炸(zha)藥(yao)包的方(fang)(fang)法(fa)叫導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)(bao)索(suo)(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)法(fa)。先(xian)用(yong)雷(lei)(lei)管(guan)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)(bao)索(suo)(suo)(suo),當導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)(bao)索(suo)(suo)(suo)的爆(bao)(bao)(bao)(bao)(bao)(bao)轟波傳(chuan)至炸(zha)藥(yao)包時,將(jiang)炸(zha)藥(yao)引爆(bao)(bao)(bao)(bao)(bao)(bao)。在需要延時分段起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)的地方(fang)(fang),將(jiang)導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)(bao)索(suo)(suo)(suo)中接入繼爆(bao)(bao)(bao)(bao)(bao)(bao)管(guan),就能(neng)達到導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)(bao)索(suo)(suo)(suo)毫秒(miao)爆(bao)(bao)(bao)(bao)(bao)(bao)破(po)的目(mu)的。這(zhe)種(zhong)爆(bao)(bao)(bao)(bao)(bao)(bao)破(po)法(fa)所需起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)材料(liao)有(you):雷(lei)(lei)管(guan)、導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)(bao)索(suo)(suo)(suo)和(he)繼爆(bao)(bao)(bao)(bao)(bao)(bao)管(guan)等。導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)(bao)索(suo)(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)(bao)網路常用(yong)的有(you):串聯、簇(cu)并(bing)聯、單(dan)向分段并(bing)聯和(he)雙向分段并(bing)聯等。
我(wo)國于1983年制定了《水(shui)工(gong)(gong)(gong)(gong)建筑(zhu)物巖行(xing)基礎開挖(wa)工(gong)(gong)(gong)(gong)程(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)(ji)術(shu)(shu)規(gui)(gui)范(fan)》(sD 121l一1983)。自(zi)此(ci),在(zai)水(shui)利(li)水(shui)電建設中預裂(lie)爆(bao)破與光(guang)面(mian)(mian)爆(bao)破已成為必須進(jin)行(xing)的(de)(de)保護(hu)邊(bian)(bian)坡(po)質(zhi)(zhi)量的(de)(de)爆(bao)破開挖(wa)技(ji)(ji)術(shu)(shu)措(cuo)施(shi)(shi)(shi)。此(ci)后(hou)在(zai)此(ci)基礎上修(xiu)訂的(de)(de)《水(shui)工(gong)(gong)(gong)(gong)建筑(zhu)物巖石基礎開挖(wa)工(gong)(gong)(gong)(gong)程(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)(ji)術(shu)(shu)規(gui)(gui)范(fan)》(SL 47一1994)以及在(zai)《水(shui)電水(shui)利(li)爆(bao)破工(gong)(gong)(gong)(gong)程(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)(ji)術(shu)(shu)規(gui)(gui)范(fan)》(DL/T 5135—2001)和(he)《水(shui)工(gong)(gong)(gong)(gong)建筑(zhu)物巖石基礎開挖(wa)工(gong)(gong)(gong)(gong)程(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)(ji)術(shu)(shu)規(gui)(gui)范(fan)》(DL/T 5389~2007)中預裂(lie)爆(bao)破與光(guang)面(mian)(mian)爆(bao)破均被(bei)編(bian)入并有所改進(jin),DL/T 5135—2001正在(zai)修(xiu)編(bian)為DL/T 5135—2012。鐵(tie)道部(bu)也不僅規(gui)(gui)定了凡是Ⅲ級以上的(de)(de)巖石邊(bian)(bian)坡(po),設計邊(bian)(bian)坡(po)坡(po)度為1:0.1~1:0.75,在(zai)邊(bian)(bian)坡(po)部(bu)位的(de)(de)爆(bao)破設計和(he)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)都應(ying)采用光(guang)面(mian)(mian)爆(bao)破或(huo)預裂(lie)爆(bao)破,并闡(chan)述了光(guang)面(mian)(mian)(預裂(lie))爆(bao)破施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)(ji)術(shu)(shu)設計的(de)(de)原(yuan)則(ze)和(he)參數(shu)(shu)、安全措(cuo)施(shi)(shi)(shi),而(er)且還明確了路(lu)塹邊(bian)(bian)坡(po)光(guang)面(mian)(mian)(預裂(lie))爆(bao)破項目(mu)質(zhi)(zhi)量驗(yan)收檢(jian)(jian)測數(shu)(shu)量和(he)檢(jian)(jian)測方(fang)法。無(wu)疑該規(gui)(gui)程(cheng)的(de)(de)實施(shi)(shi)(shi),有力地推動和(he)促進(jin)了光(guang)面(mian)(mian)(預裂(lie))爆(bao)破技(ji)(ji)術(shu)(shu)在(zai)鐵(tie)路(lu)建設中的(de)(de)應(ying)用與發展。
發(fa)揮巨大效力的(de)(de)關鍵又(you)在(zai)其上面(mian)的(de)(de)“聚(ju)(ju)能(neng)(neng)(neng)槽”上。項目部目前采用的(de)(de)聚(ju)(ju)能(neng)(neng)(neng)管有(you)兩(liang)個(ge)“聚(ju)(ju)能(neng)(neng)(neng)槽”,通過(guo)這兩(liang)個(ge)聚(ju)(ju)能(neng)(neng)(neng)槽的(de)(de)作(zuo)用讓爆炸的(de)(de)威力在(zai)隧道中(zhong)切(qie)割(ge)出(chu)十(shi)分(fen)平順的(de)(de)輪(lun)廓線,的(de)(de)控制了(le)爆破量,有(you)效管控了(le)超(chao)挖(wa)欠挖(wa)的(de)(de)現(xian)象。為了(le)進(jin)一步嚴(yan)格控制開(kai)挖(wa)輪(lun)廓,達到(dao)提高光面(mian)爆破效果的(de)(de)目的(de)(de),并研究出(chu)了(le)聚(ju)(ju)能(neng)(neng)(neng)管上兩(liang)個(ge)“聚(ju)(ju)能(neng)(neng)(neng)槽”變為三個(ge)“聚(ju)(ju)能(neng)(neng)(neng)槽”的(de)(de)發(fa)明設(she)計,目前,該發(fa)明設(she)計已經(jing)(jing)進(jin)入到(dao)了(le)試(shi)生產階(jie)段。未來,三“聚(ju)(ju)能(neng)(neng)(neng)槽”設(she)計的(de)(de)聚(ju)(ju)能(neng)(neng)(neng)水壓(ya)爆破技(ji)術將(jiang)推動(dong)中(zhong)鐵(tie)十(shi)四(si)局四(si)公司張(zhang)吉懷鐵(tie)路項目部施工開(kai)展邁(mai)上一個(ge)新的(de)(de)臺階(jie),給項目部帶來巨大的(de)(de)經(jing)(jing)濟(ji)效益。工程爆破技(ji)術經(jing)(jing)過(guo)幾十(shi)年的(de)(de)發(fa)展,已經(jing)(jing)滲透到(dao)經(jing)(jing)濟(ji)建設(she)的(de)(de)眾多(duo)領(ling)域,特別為中(zhong)國(guo)的(de)(de)鐵(tie)路建設(she)、礦山開(kai)采、城市(shi)拆(chai)舊定(ding)向(xiang)爆破等做出(chu)了(le)重要貢獻。
無錫深孔爆破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。專業深孔爆破多向聚能管可根據炮(pao)眼深度采用合適(shi)的聚能(neng)管(guan)(guan)管(guan)(guan)體,不需其他工具幫助送(song)入炮(pao)眼,切縫方向(xiang)準(zhun)確(que),兩(liang)端的前錐形定(ding)格帽和后(hou)定(ding)格堵外(wai)徑與炮(pao)眼內徑一(yi)致(zhi),保證(zheng)聚能(neng)管(guan)(guan)管(guan)(guan)體同心(xin),定(ding)向(xiang)準(zhun)確(que)。且利(li)于工業(ye)化生產,作(zuo)業(ye)安全
水(shui)壓(ya)光(guang)面(mian)爆破(po)(po)技(ji)術(shu),是在水(shui)壓(ya)光(guang)面(mian)爆破(po)(po)技(ji)術(shu)基礎上發展(zhan)起來的(de)一項新技(ji)術(shu),其(qi)掏槽(cao)眼、輔助眼裝(zhuang)藥結構和(he)爆破(po)(po)方式與(yu)水(shui)壓(ya)光(guang)面(mian)爆破(po)(po)相(xiang)同,但在周邊眼中安裝(zhuang)專用(yong)聚(ju)(ju)能(neng)(neng)管(guan)(guan)裝(zhuang)置替代(dai)常(chang)規爆破(po)(po)藥卷(juan)和(he)傳爆線,利用(yong)聚(ju)(ju)能(neng)(neng)管(guan)(guan)產(chan)生(sheng)的(de)粒子射流動能(neng)(neng)、高(gao)壓(ya)爆破(po)(po)氣體應力及“氣楔”作(zuo)用(yong),形成(cheng)平(ping)整圓順的(de)開(kai)挖輪廓(kuo)面(mian),對控制超欠挖具(ju)有良好效(xiao)(xiao)果,有效(xiao)(xiao)提升了隧道施工質量、進(jin)度(du)和(he)經濟效(xiao)(xiao)益。科學合理地(di)利用(yong)能(neng)(neng)源(yuan),提高(gao)能(neng)(neng)源(yuan)利用(yong)效(xiao)(xiao)率,對節能(neng)(neng)減排(pai)也(ye)十(shi)分重要。利用(yong)聚(ju)(ju)能(neng)(neng)管(guan)(guan)兩(liang)端的(de)水(shui)平(ping)開(kai)出的(de)聚(ju)(ju)能(neng)(neng)槽(cao)產(chan)生(sheng)的(de)聚(ju)(ju)能(neng)(neng)射流效(xiao)(xiao)應對巖石進(jin)行破(po)(po)碎。據專家測(ce)算,由于聚(ju)(ju)能(neng)(neng)管(guan)(guan)兩(liang)端聚(ju)(ju)能(neng)(neng)槽(cao)產(chan)生(sheng)的(de)聚(ju)(ju)能(neng)(neng)切割(ge)效(xiao)(xiao)應,其(qi)能(neng)(neng)效(xiao)(xiao)比(bi)提升一個量級。