我(wo)國于1983年(nian)制定(ding)了(le)《水工(gong)(gong)(gong)建(jian)筑(zhu)物巖行基(ji)礎開挖工(gong)(gong)(gong)程(cheng)施(shi)(shi)工(gong)(gong)(gong)技(ji)(ji)(ji)術規(gui)范(fan)》(sD 121l一(yi)1983)。自(zi)此,在水利(li)水電建(jian)設中預(yu)裂(lie)爆(bao)(bao)(bao)(bao)破(po)(po)(po)與(yu)光(guang)面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)已成為(wei)(wei)必須進行的(de)保(bao)護邊坡(po)質量(liang)(liang)的(de)爆(bao)(bao)(bao)(bao)破(po)(po)(po)開挖技(ji)(ji)(ji)術措施(shi)(shi)。此后(hou)在此基(ji)礎上修訂(ding)的(de)《水工(gong)(gong)(gong)建(jian)筑(zhu)物巖石基(ji)礎開挖工(gong)(gong)(gong)程(cheng)施(shi)(shi)工(gong)(gong)(gong)技(ji)(ji)(ji)術規(gui)范(fan)》(SL 47一(yi)1994)以(yi)及(ji)在《水電水利(li)爆(bao)(bao)(bao)(bao)破(po)(po)(po)工(gong)(gong)(gong)程(cheng)施(shi)(shi)工(gong)(gong)(gong)技(ji)(ji)(ji)術規(gui)范(fan)》(DL/T 5135—2001)和(he)《水工(gong)(gong)(gong)建(jian)筑(zhu)物巖石基(ji)礎開挖工(gong)(gong)(gong)程(cheng)施(shi)(shi)工(gong)(gong)(gong)技(ji)(ji)(ji)術規(gui)范(fan)》(DL/T 5389~2007)中預(yu)裂(lie)爆(bao)(bao)(bao)(bao)破(po)(po)(po)與(yu)光(guang)面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)均被(bei)編入并(bing)(bing)有所改進,DL/T 5135—2001正在修編為(wei)(wei)DL/T 5135—2012。鐵(tie)道(dao)部也不僅規(gui)定(ding)了(le)凡是(shi)Ⅲ級以(yi)上的(de)巖石邊坡(po),設計(ji)邊坡(po)坡(po)度為(wei)(wei)1:0.1~1:0.75,在邊坡(po)部位的(de)爆(bao)(bao)(bao)(bao)破(po)(po)(po)設計(ji)和(he)施(shi)(shi)工(gong)(gong)(gong)都應采(cai)用光(guang)面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)或(huo)預(yu)裂(lie)爆(bao)(bao)(bao)(bao)破(po)(po)(po),并(bing)(bing)闡述了(le)光(guang)面(mian)(預(yu)裂(lie))爆(bao)(bao)(bao)(bao)破(po)(po)(po)施(shi)(shi)工(gong)(gong)(gong)技(ji)(ji)(ji)術設計(ji)的(de)原則(ze)和(he)參(can)數(shu)、安全措施(shi)(shi),而且還明確了(le)路(lu)塹邊坡(po)光(guang)面(mian)(預(yu)裂(lie))爆(bao)(bao)(bao)(bao)破(po)(po)(po)項(xiang)目(mu)質量(liang)(liang)驗(yan)收檢測數(shu)量(liang)(liang)和(he)檢測方法(fa)。無(wu)疑該規(gui)程(cheng)的(de)實(shi)施(shi)(shi),有力地推動和(he)促進了(le)光(guang)面(mian)(預(yu)裂(lie))爆(bao)(bao)(bao)(bao)破(po)(po)(po)技(ji)(ji)(ji)術在鐵(tie)路(lu)建(jian)設中的(de)應用與(yu)發展(zhan)。
是由管(guan)(guan)(guan)體(ti)(ti)、前錐形定(ding)格(ge)(ge)(ge)帽(mao)(mao)、后定(ding)格(ge)(ge)(ge)堵(du)構成,管(guan)(guan)(guan)體(ti)(ti)為塑性(xing)材料制(zhi)成,呈(cheng)管(guan)(guan)(guan)狀(zhuang),管(guan)(guan)(guan)體(ti)(ti)外(wai)(wai)徑(jing)小于(yu)正常炮(pao)眼內(nei)(nei)(nei)徑(jing),長度(du)可隨(sui)爆破(po)需要生產,管(guan)(guan)(guan)體(ti)(ti)兩端(duan)各有(you)外(wai)(wai)螺(luo)紋,兩端(duan)外(wai)(wai)螺(luo)紋間有(you)一(yi)縱向切(qie)縫(feng)(feng)(feng),切(qie)縫(feng)(feng)(feng)間等距有(you)加強筋,前錐形定(ding)格(ge)(ge)(ge)帽(mao)(mao)呈(cheng)傘狀(zhuang),傘形尖有(you)一(yi)光孔(kong),兩側直壁(bi)內(nei)(nei)(nei)徑(jing)有(you)螺(luo)紋,與管(guan)(guan)(guan)體(ti)(ti)外(wai)(wai)徑(jing)前端(duan)螺(luo)紋配合(he),帽(mao)(mao)體(ti)(ti)外(wai)(wai)徑(jing)大(da)于(yu)管(guan)(guan)(guan)體(ti)(ti),后定(ding)格(ge)(ge)(ge)堵(du)為一(yi)封蓋,外(wai)(wai)徑(jing)直徑(jing)大(da)于(yu)管(guan)(guan)(guan)體(ti)(ti)外(wai)(wai)徑(jing),與前錐形定(ding)格(ge)(ge)(ge)帽(mao)(mao)外(wai)(wai)徑(jing)一(yi)致,后定(ding)格(ge)(ge)(ge)堵(du)內(nei)(nei)(nei)徑(jing)有(you)螺(luo)紋,與管(guan)(guan)(guan)體(ti)(ti)外(wai)(wai)徑(jing)后端(duan)螺(luo)紋配合(he)。可根據炮(pao)眼深度(du)采用合(he)適(shi)的聚能(neng)管(guan)(guan)(guan)管(guan)(guan)(guan)體(ti)(ti),不需其他工(gong)具幫助(zhu)送入炮(pao)眼,切(qie)縫(feng)(feng)(feng)方(fang)向準確,兩端(duan)的前錐形定(ding)格(ge)(ge)(ge)帽(mao)(mao)和后定(ding)格(ge)(ge)(ge)堵(du)外(wai)(wai)徑(jing)與炮(pao)眼內(nei)(nei)(nei)徑(jing)一(yi)致,保證聚能(neng)管(guan)(guan)(guan)管(guan)(guan)(guan)體(ti)(ti)同心,定(ding)向準確。且利于(yu)工(gong)業化生產,作業安(an)全
火索起爆法,導火索起爆法是利用導火索傳遞火焰點燃火雷管進而起爆炸藥。這種起爆法所需的材料有:導火索、火雷管和點火材料。專用礦用型雙向聚能管導火索起爆法操作簡單、靈活,使用方便,成本較低,廣泛應用于小型爆破和掘進。由于導火索的速燃、緩燃等弊病,在爆破中事故所占比重最大。不能多處裝藥同時起爆。導爆索起爆法,礦用型雙向聚能管價格用導爆(bao)(bao)(bao)(bao)(bao)索(suo)直(zhi)接起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)炸藥(yao)包的(de)方法(fa)叫導爆(bao)(bao)(bao)(bao)(bao)索(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)。先(xian)用雷(lei)管起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)導爆(bao)(bao)(bao)(bao)(bao)索(suo),當導爆(bao)(bao)(bao)(bao)(bao)索(suo)的(de)爆(bao)(bao)(bao)(bao)(bao)轟波(bo)傳至炸藥(yao)包時,將(jiang)炸藥(yao)引爆(bao)(bao)(bao)(bao)(bao)。在需要(yao)延時分段(duan)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)的(de)地方,將(jiang)導爆(bao)(bao)(bao)(bao)(bao)索(suo)中接入繼爆(bao)(bao)(bao)(bao)(bao)管,就能(neng)達到(dao)導爆(bao)(bao)(bao)(bao)(bao)索(suo)毫秒(miao)爆(bao)(bao)(bao)(bao)(bao)破的(de)目的(de)。這(zhe)種爆(bao)(bao)(bao)(bao)(bao)破法(fa)所需起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)材料(liao)有:雷(lei)管、導爆(bao)(bao)(bao)(bao)(bao)索(suo)和(he)繼爆(bao)(bao)(bao)(bao)(bao)管等。導爆(bao)(bao)(bao)(bao)(bao)索(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)網路常用的(de)有:串聯(lian)、簇并聯(lian)、單向(xiang)分段(duan)并聯(lian)和(he)雙向(xiang)分段(duan)并聯(lian)等。
在(zai)鐵(tie)路(lu)、礦(kuang)山(shan)(shan)、水(shui)庫等(deng)大(da)型(xing)工程(cheng)中,爆(bao)(bao)破技(ji)術的(de)(de)作(zuo)(zuo)用很關鍵(jian)很重(zhong)要(yao)。采(cai)礦(kuang)修路(lu)的(de)(de)開山(shan)(shan)挖隧道,城市對(dui)舊建筑物的(de)(de)拆除,都會用到(dao)(dao)爆(bao)(bao)破技(ji)術。隨著經濟的(de)(de)發展、工程(cheng)建設的(de)(de)增多(duo),爆(bao)(bao)破引起了(le)人們更多(duo)的(de)(de)關注。爆(bao)(bao)破聚能管作(zuo)(zuo)為一(yi)種科學技(ji)術,應用很廣,但(dan)在(zai)工程(cheng)上(shang)的(de)(de)應用無疑是重(zhong)要(yao)、常(chang)見的(de)(de),采(cai)礦(kuang)開山(shan)(shan),修鐵(tie)路(lu)、公路(lu)用鉆(zhan)爆(bao)(bao)法來開掘隧道,水(shui)利工程(cheng)上(shang)也用一(yi)些,城市里面也使用了(le),拆除樓(lou)房。利用炸(zha)爆(bao)(bao)炸(zha)產生的(de)(de)巨大(da)能量破壞某種物體(ti)的(de)(de)原結構(gou),這種"破壞"效(xiao)果不是其他方法能代替的(de)(de),它雖然不是獨立完(wan)成一(yi)個(ge)工程(cheng),但(dan)卻(que)是一(yi)個(ge)重(zhong)要(yao)的(de)(de)工序,特別是石方開挖、礦(kuang)山(shan)(shan)開采(cai)等(deng)工程(cheng)缺少了(le)這個(ge)工序還不行。中國目前有發達的(de)(de)鐵(tie)路(lu)和公路(lu)交通網(wang),可(ke)以想(xiang)象,當(dang)初在(zai)修這些路(lu)的(de)(de)時(shi)候(hou)會遇到(dao)(dao)許多(duo)高山(shan)(shan)峻(jun)嶺,一(yi)座大(da)山(shan)(shan)橫在(zai)兩地之間,想(xiang)要(yao)修路(lu),就必須(xu)讓(rang)這座山(shan)(shan)消失(shi),這個(ge)時(shi)候(hou)聚能管爆(bao)(bao)破就起到(dao)(dao)決(jue)定(ding)性作(zuo)(zuo)用了(le)。