施工(gong)(gong)工(gong)(gong)藝嚴格遵循(xun)六字方(fang)針(掛滿(man)、貼緊、對準):(1)要(yao)保(bao)(bao)(bao)證(zheng)(zheng)炮(pao)(pao)眼(yan)(yan)打(da)眼(yan)(yan)質(zhi)量,炮(pao)(pao)眼(yan)(yan)必須按技術要(yao)求合理布置。(2)要(yao)保(bao)(bao)(bao)證(zheng)(zheng)掏槽眼(yan)(yan)以及其他眼(yan)(yan)眼(yan)(yan)的(de)打(da)眼(yan)(yan)質(zhi)量,一定(ding)要(yao)在規(gui)(gui)定(ding)位置上打(da)眼(yan)(yan);二(er)要(yao)保(bao)(bao)(bao)證(zheng)(zheng)炮(pao)(pao)眼(yan)(yan)深度和角(jiao)度。(3)聚能管裝藥(yao)(yao)時(shi),要(yao)保(bao)(bao)(bao)證(zheng)(zheng)乳化(hua)炸藥(yao)(yao)在聚能管中空內壁(bi)中填(tian)充飽滿(man)不得有(you)空隙出現時(shi)以產(chan)生拒爆。(4)聚能管在炮(pao)(pao)眼(yan)(yan)中裝填(tian)時(shi),要(yao)保(bao)(bao)(bao)證(zheng)(zheng)聚能管的(de)兩條聚能槽指(zhi)向巷道輪廓(kuo)線方(fang)向并(bing)(bing)且各個炮(pao)(pao)眼(yan)(yan)聚能管的(de)聚能槽軸線方(fang)面(mian)要(yao)保(bao)(bao)(bao)證(zheng)(zheng)相互連接(jie)在隧道輪廓(kuo)線上。否(fou)則成(cheng)型效(xiao)果不僅不好(hao),反(fan)而(er)更差。(5)保(bao)(bao)(bao)證(zheng)(zheng)炮(pao)(pao)眼(yan)(yan)堵塞質(zhi)量。(6)放炮(pao)(pao)員應提(ti)前按規(gui)(gui)定(ding)裝好(hao)聚能管的(de)炸藥(yao)(yao),并(bing)(bing)做好(hao)準備工(gong)(gong)作。試用范圍:一級至五(wu)級圍巖的(de)光面(mian)爆破工(gong)(gong)程(cheng)。
廣州c型聚能管水壓爆破是在炮孔兩端填充水袋,中間裝上乳化炸,炮孔再用炮泥封死,炮孔間距很大,兩個炮空之間相距了一米左右,是常規爆破的炮孔間距的兩倍,這樣可以節省炮孔材料,這兩個凹槽又稱為聚能槽,聚能槽非常重要,放置的位置和方向都十分講究,一點也不能出錯,c型聚能管廠家在(zai)爆(bao)(bao)(bao)破的(de)(de)瞬間(jian),高溫高壓(ya)(ya)聚能(neng)射流立即往凹(ao)槽(cao)兩邊(bian)的(de)(de)巖石(shi)進行切割(ge),巖石(shi)如同豆(dou)腐一樣輕松被(bei)切割(ge)切割(ge)出來(lai)的(de)(de)輪廓線(xian)十分平順,效果極好,聚能(neng)水壓(ya)(ya)爆(bao)(bao)(bao)破中的(de)(de)水袋沒有降(jiang)低(di)爆(bao)(bao)(bao)破的(de)(de)效果,反而能(neng)保(bao)護隧道(dao)周(zhou)邊(bian)植被(bei),減少地質擾動(dong),降(jiang)低(di)煙塵,重要的(de)(de)是節省炸成本(ben),在(zai)未來(lai)這(zhe)項(xiang)技術會(hui)廣泛應用(yong)(yong)于工程中,降(jiang)低(di)施工成本(ben)。爆(bao)(bao)(bao)破聚能(neng)管水壓(ya)(ya)光面(mian)爆(bao)(bao)(bao)破較水壓(ya)(ya)光面(mian)爆(bao)(bao)(bao)破,在(zai)周(zhou)邊(bian)眼單循環火工品(pin)使用(yong)(yong)量(liang)上節約費(fei)用(yong)(yong)8.3%,周(zhou)邊(bian)眼鉆孔數量(liang)從39個(ge)下降(jiang)為23個(ge)費(fei)用(yong)(yong)節約41%,混凝(ning)土噴射每延(yan)米節約1.37立方米。
聚(ju)(ju)(ju)能藥(yao)(yao)(yao)(yao)包(bao)破碎(sui)法特點是(shi):不需要打眼(yan),因而(er)不需要購買打眼(yan)設備和(he)(he)動力(li)設備;施工(gong)簡單,施工(gong)進(jin)度比淺(qian)眼(yan)爆破法快安全性比普通淺(qian)眼(yan)爆破法和(he)(he)普通裸露(lu)藥(yao)(yao)(yao)(yao)包(bao)法好(hao);勞動強度比淺(qian)眼(yan)爆破法低。制(zhi)造(zao)聚(ju)(ju)(ju)能藥(yao)(yao)(yao)(yao)包(bao)所采(cai)(cai)用(yong)的(de)(de)(de)炸藥(yao)(yao)(yao)(yao)有:黑索金(jin)和(he)(he)梯恩(en)梯混(hun)合熔(rong)鑄型;乳化油炸藥(yao)(yao)(yao)(yao)和(he)(he)黑索金(jin)混(hun)裝型和(he)(he)二(er)號巖石硝鉸炸藥(yao)(yao)(yao)(yao)壓制(zhi)型。根(gen)據使用(yong)的(de)(de)(de)結果證(zheng)明,選(xuan)用(yong)密度較(jiao)大(da)和(he)(he)爆速較(jiao)高的(de)(de)(de)炸藥(yao)(yao)(yao)(yao)制(zhi)造(zao)聚(ju)(ju)(ju)能藥(yao)(yao)(yao)(yao)包(bao)能獲得(de)較(jiao)好(hao)的(de)(de)(de)破碎(sui)效果。這主要是(shi)由于它(ta)加(jia)工(gong)簡單和(he)(he)破碎(sui)能力(li)較(jiao)大(da)。在礦山(shan)由于二(er)次破碎(sui)消(xiao)耗的(de)(de)(de)藥(yao)(yao)(yao)(yao)包(bao)較(jiao)多,而(er)且(qie)金(jin)屬藥(yao)(yao)(yao)(yao)型罩的(de)(de)(de)加(jia)工(gong)費工(gong)又費材(cai)料,所以多不采(cai)(cai)用(yong)藥(yao)(yao)(yao)(yao)型罩。國(guo)內生產的(de)(de)(de)一種用(yong)于破碎(sui)大(da)塊(kuai)的(de)(de)(de)聚(ju)(ju)(ju)能藥(yao)(yao)(yao)(yao)包(bao),裝置聚(ju)(ju)(ju)能藥(yao)(yao)(yao)(yao)包(bao)時(shi),要將藥(yao)(yao)(yao)(yao)包(bao)垂(chui)直裝在大(da)塊(kuai)的(de)(de)(de)頂面上(shang),聚(ju)(ju)(ju)能穴朝下。藥(yao)(yao)(yao)(yao)包(bao)位置應選(xuan)在頂面的(de)(de)(de)幾(ji)何(he)中心或附近(jin)較(jiao)平整(zheng)的(de)(de)(de)地點。然后在上(shang)面覆蓋泥沙。
我國(guo)于1983年制定了(le)《水(shui)(shui)(shui)工(gong)(gong)建筑物巖(yan)行基礎(chu)開挖(wa)工(gong)(gong)程(cheng)施(shi)(shi)工(gong)(gong)技術規(gui)(gui)范(fan)(fan)》(sD 121l一1983)。自此(ci),在(zai)水(shui)(shui)(shui)利水(shui)(shui)(shui)電建設(she)(she)中預(yu)(yu)(yu)裂(lie)(lie)(lie)爆(bao)(bao)(bao)(bao)(bao)破(po)與光(guang)面(mian)(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)已成為(wei)(wei)必須進(jin)行的(de)(de)(de)(de)保護邊(bian)坡(po)(po)質(zhi)量(liang)的(de)(de)(de)(de)爆(bao)(bao)(bao)(bao)(bao)破(po)開挖(wa)技術措施(shi)(shi)。此(ci)后在(zai)此(ci)基礎(chu)上修訂(ding)的(de)(de)(de)(de)《水(shui)(shui)(shui)工(gong)(gong)建筑物巖(yan)石基礎(chu)開挖(wa)工(gong)(gong)程(cheng)施(shi)(shi)工(gong)(gong)技術規(gui)(gui)范(fan)(fan)》(SL 47一1994)以及在(zai)《水(shui)(shui)(shui)電水(shui)(shui)(shui)利爆(bao)(bao)(bao)(bao)(bao)破(po)工(gong)(gong)程(cheng)施(shi)(shi)工(gong)(gong)技術規(gui)(gui)范(fan)(fan)》(DL/T 5135—2001)和《水(shui)(shui)(shui)工(gong)(gong)建筑物巖(yan)石基礎(chu)開挖(wa)工(gong)(gong)程(cheng)施(shi)(shi)工(gong)(gong)技術規(gui)(gui)范(fan)(fan)》(DL/T 5389~2007)中預(yu)(yu)(yu)裂(lie)(lie)(lie)爆(bao)(bao)(bao)(bao)(bao)破(po)與光(guang)面(mian)(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)均被編入并有(you)所改進(jin),DL/T 5135—2001正在(zai)修編為(wei)(wei)DL/T 5135—2012。鐵(tie)道部(bu)也(ye)不(bu)僅規(gui)(gui)定了(le)凡是(shi)Ⅲ級(ji)以上的(de)(de)(de)(de)巖(yan)石邊(bian)坡(po)(po),設(she)(she)計(ji)邊(bian)坡(po)(po)坡(po)(po)度為(wei)(wei)1:0.1~1:0.75,在(zai)邊(bian)坡(po)(po)部(bu)位的(de)(de)(de)(de)爆(bao)(bao)(bao)(bao)(bao)破(po)設(she)(she)計(ji)和施(shi)(shi)工(gong)(gong)都(dou)應(ying)采用(yong)光(guang)面(mian)(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)或(huo)預(yu)(yu)(yu)裂(lie)(lie)(lie)爆(bao)(bao)(bao)(bao)(bao)破(po),并闡(chan)述了(le)光(guang)面(mian)(mian)(預(yu)(yu)(yu)裂(lie)(lie)(lie))爆(bao)(bao)(bao)(bao)(bao)破(po)施(shi)(shi)工(gong)(gong)技術設(she)(she)計(ji)的(de)(de)(de)(de)原(yuan)則和參數(shu)(shu)、安全措施(shi)(shi),而且還明確了(le)路(lu)塹邊(bian)坡(po)(po)光(guang)面(mian)(mian)(預(yu)(yu)(yu)裂(lie)(lie)(lie))爆(bao)(bao)(bao)(bao)(bao)破(po)項目質(zhi)量(liang)驗收檢測數(shu)(shu)量(liang)和檢測方法。無疑該規(gui)(gui)程(cheng)的(de)(de)(de)(de)實(shi)施(shi)(shi),有(you)力(li)地推動和促進(jin)了(le)光(guang)面(mian)(mian)(預(yu)(yu)(yu)裂(lie)(lie)(lie))爆(bao)(bao)(bao)(bao)(bao)破(po)技術在(zai)鐵(tie)路(lu)建設(she)(she)中的(de)(de)(de)(de)應(ying)用(yong)與發展。