我國于1983年制定了(le)《水工(gong)(gong)(gong)建筑物(wu)巖(yan)行基(ji)礎開挖(wa)工(gong)(gong)(gong)程(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)技(ji)術(shu)(shu)規(gui)范(fan)(fan)》(sD 121l一1983)。自(zi)此,在(zai)(zai)水利(li)(li)水電(dian)(dian)建設(she)中預(yu)(yu)裂(lie)爆(bao)(bao)破(po)與光(guang)面爆(bao)(bao)破(po)已成(cheng)為必(bi)須進(jin)行的(de)保護邊(bian)坡質量的(de)爆(bao)(bao)破(po)開挖(wa)技(ji)術(shu)(shu)措施(shi)(shi)(shi)。此后在(zai)(zai)此基(ji)礎上修訂的(de)《水工(gong)(gong)(gong)建筑物(wu)巖(yan)石(shi)基(ji)礎開挖(wa)工(gong)(gong)(gong)程(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)技(ji)術(shu)(shu)規(gui)范(fan)(fan)》(SL 47一1994)以及在(zai)(zai)《水電(dian)(dian)水利(li)(li)爆(bao)(bao)破(po)工(gong)(gong)(gong)程(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)技(ji)術(shu)(shu)規(gui)范(fan)(fan)》(DL/T 5135—2001)和《水工(gong)(gong)(gong)建筑物(wu)巖(yan)石(shi)基(ji)礎開挖(wa)工(gong)(gong)(gong)程(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)技(ji)術(shu)(shu)規(gui)范(fan)(fan)》(DL/T 5389~2007)中預(yu)(yu)裂(lie)爆(bao)(bao)破(po)與光(guang)面爆(bao)(bao)破(po)均被編入并(bing)有(you)(you)所改進(jin),DL/T 5135—2001正在(zai)(zai)修編為DL/T 5135—2012。鐵道(dao)部也不僅規(gui)定了(le)凡是Ⅲ級以上的(de)巖(yan)石(shi)邊(bian)坡,設(she)計邊(bian)坡坡度為1:0.1~1:0.75,在(zai)(zai)邊(bian)坡部位的(de)爆(bao)(bao)破(po)設(she)計和施(shi)(shi)(shi)工(gong)(gong)(gong)都應(ying)采用光(guang)面爆(bao)(bao)破(po)或預(yu)(yu)裂(lie)爆(bao)(bao)破(po),并(bing)闡(chan)述了(le)光(guang)面(預(yu)(yu)裂(lie))爆(bao)(bao)破(po)施(shi)(shi)(shi)工(gong)(gong)(gong)技(ji)術(shu)(shu)設(she)計的(de)原則(ze)和參數、安全措施(shi)(shi)(shi),而且還明確了(le)路(lu)塹邊(bian)坡光(guang)面(預(yu)(yu)裂(lie))爆(bao)(bao)破(po)項目質量驗收檢測數量和檢測方法。無(wu)疑該(gai)規(gui)程(cheng)(cheng)的(de)實施(shi)(shi)(shi),有(you)(you)力地推(tui)動和促進(jin)了(le)光(guang)面(預(yu)(yu)裂(lie))爆(bao)(bao)破(po)技(ji)術(shu)(shu)在(zai)(zai)鐵路(lu)建設(she)中的(de)應(ying)用與發展。
施工(gong)(gong)工(gong)(gong)藝嚴(yan)格(ge)遵循六(liu)字方針(zhen)(掛滿(man)、貼緊(jin)、對(dui)準):(1)要(yao)保(bao)證(zheng)炮(pao)(pao)眼(yan)(yan)打(da)眼(yan)(yan)質量,炮(pao)(pao)眼(yan)(yan)必須按技術要(yao)求(qiu)合理(li)布置。(2)要(yao)保(bao)證(zheng)掏槽眼(yan)(yan)以及其他眼(yan)(yan)眼(yan)(yan)的打(da)眼(yan)(yan)質量,一(yi)定(ding)要(yao)在(zai)規定(ding)位置上打(da)眼(yan)(yan);二要(yao)保(bao)證(zheng)炮(pao)(pao)眼(yan)(yan)深(shen)度和角度。(3)聚(ju)(ju)能(neng)管(guan)(guan)(guan)裝藥時,要(yao)保(bao)證(zheng)乳化炸藥在(zai)聚(ju)(ju)能(neng)管(guan)(guan)(guan)中(zhong)(zhong)空(kong)內壁中(zhong)(zhong)填充(chong)飽滿(man)不(bu)得有空(kong)隙出現時以產生拒(ju)爆。(4)聚(ju)(ju)能(neng)管(guan)(guan)(guan)在(zai)炮(pao)(pao)眼(yan)(yan)中(zhong)(zhong)裝填時,要(yao)保(bao)證(zheng)聚(ju)(ju)能(neng)管(guan)(guan)(guan)的兩(liang)條聚(ju)(ju)能(neng)槽指向(xiang)巷道輪廓(kuo)線方向(xiang)并且各(ge)個(ge)炮(pao)(pao)眼(yan)(yan)聚(ju)(ju)能(neng)管(guan)(guan)(guan)的聚(ju)(ju)能(neng)槽軸線方面要(yao)保(bao)證(zheng)相互連接在(zai)隧道輪廓(kuo)線上。否則成型效果不(bu)僅不(bu)好(hao),反而(er)更差。(5)保(bao)證(zheng)炮(pao)(pao)眼(yan)(yan)堵塞質量。(6)放(fang)炮(pao)(pao)員應(ying)提前(qian)按規定(ding)裝好(hao)聚(ju)(ju)能(neng)管(guan)(guan)(guan)的炸藥,并做(zuo)好(hao)準備(bei)工(gong)(gong)作。試(shi)用范圍(wei):一(yi)級(ji)至五級(ji)圍(wei)巖的光面爆破工(gong)(gong)程(cheng)。
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。專業o型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,o型聚能管價格用(yong)導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)(suo)(suo)直接起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)炸(zha)藥包的方法(fa)叫導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa)。先用(yong)雷管(guan)(guan)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)(suo)(suo),當導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)(suo)(suo)的爆(bao)(bao)(bao)(bao)轟波傳至(zhi)炸(zha)藥包時,將(jiang)炸(zha)藥引(yin)爆(bao)(bao)(bao)(bao)。在(zai)需要(yao)延時分段起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)的地方,將(jiang)導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)(suo)(suo)中接入繼爆(bao)(bao)(bao)(bao)管(guan)(guan),就(jiu)能達到導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)(suo)(suo)毫秒(miao)爆(bao)(bao)(bao)(bao)破的目的。這種爆(bao)(bao)(bao)(bao)破法(fa)所需起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)材料有:雷管(guan)(guan)、導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)(suo)(suo)和繼爆(bao)(bao)(bao)(bao)管(guan)(guan)等。導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)網路常用(yong)的有:串聯、簇并聯、單(dan)向(xiang)分段并聯和雙(shuang)向(xiang)分段并聯等。
施(shi)工(gong)(gong)因其復雜性、專(zhuan)業(ye)性、危險性,稍有(you)不(bu)(bu)慎(shen),將對人民的(de)(de)(de)生(sheng)命財產(chan)安全(quan)造成(cheng)(cheng)不(bu)(bu)可(ke)估(gu)量(liang)的(de)(de)(de)損(sun)失,例如廣東(dong)宏大(da)寧(ning)夏“10.16”、山東(dong)保(bao)利“5.20”等重(zhong)大(da)安全(quan)事(shi)故(gu)。因此,相(xiang)(xiang)較其他(ta)行(xing)(xing)業(ye),國家出臺的(de)(de)(de)相(xiang)(xiang)關(guan)法(fa)(fa)律法(fa)(fa)規多、專(zhuan)、嚴,從(cong)爆破(po)材(cai)料(liao)(炸藥(yao)、雷管、導(dao)爆索(suo)?管?及相(xiang)(xiang)關(guan)材(cai)料(liao))的(de)(de)(de)生(sheng)產(chan)、購進、運輸(shu)、儲存、發放、布網(wang)、連接、起(qi)爆、排爆等一系列(lie)程序均(jun)(jun)有(you)嚴格的(de)(de)(de)法(fa)(fa)律規定和(he)(he)科(ke)學的(de)(de)(de)操作(zuo)規程,并且(qie)相(xiang)(xiang)關(guan)從(cong)業(ye)單位和(he)(he)人員(yuan)均(jun)(jun)應取得相(xiang)(xiang)應資質。做為各類爆破(po)中(zhong)不(bu)(bu)可(ke)或(huo)(huo)缺的(de)(de)(de)一種導(dao)線,特別不(bu)(bu)同于一般(ban)的(de)(de)(de)電(dian)線電(dian)纜,其質量(liang)要求(qiu)(qiu)及各項(xiang)技術參(can)數(shu)也與普(pu)通電(dian)線電(dian)纜不(bu)(bu)同。部分家庭(ting)作(zuo)坊式的(de)(de)(de)電(dian)線電(dian)纜廠(chang)無科(ke)學的(de)(de)(de)生(sheng)產(chan)工(gong)(gong)藝(yi)、無基本的(de)(de)(de)檢測設備、無專(zhuan)業(ye)的(de)(de)(de)技術人員(yuan),甚至不(bu)(bu)知道爆破(po)線的(de)(de)(de)質量(liang)要求(qiu)(qiu)和(he)(he)技術參(can)數(shu),更不(bu)(bu)可(ke)能制訂自己的(de)(de)(de)企業(ye)標準,僅(jin)憑簡陋的(de)(de)(de)設備、以(yi)粗(cu)糙(cao)的(de)(de)(de)模仿進行(xing)(xing)生(sheng)產(chan)經(jing)營(ying)活動,致使市場充斥(chi)著假冒偽劣產(chan)品,導(dao)致爆破(po)中(zhong)提前或(huo)(huo)延遲起(qi)爆、盲(mang)炮增加且(qie)強(qiang)制排爆困難,給(gei)人身安全(quan)和(he)(he)財產(chan)以(yi)及正常的(de)(de)(de)生(sheng)產(chan)經(jing)營(ying)活動造成(cheng)(cheng)了不(bu)(bu)可(ke)估(gu)量(liang)的(de)(de)(de)損(sun)失。