我國于(yu)1983年制定(ding)了《水(shui)工(gong)(gong)(gong)(gong)建筑(zhu)物(wu)巖行基(ji)礎開(kai)(kai)挖(wa)工(gong)(gong)(gong)(gong)程(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)術(shu)(shu)規(gui)范(fan)》(sD 121l一1983)。自此,在(zai)水(shui)利水(shui)電建設中(zhong)(zhong)預裂爆(bao)破(po)與光(guang)面(mian)爆(bao)破(po)已成為必(bi)須(xu)進行的(de)(de)保護邊坡(po)(po)質量(liang)的(de)(de)爆(bao)破(po)開(kai)(kai)挖(wa)技(ji)術(shu)(shu)措施(shi)(shi)(shi)。此后(hou)在(zai)此基(ji)礎上修(xiu)訂的(de)(de)《水(shui)工(gong)(gong)(gong)(gong)建筑(zhu)物(wu)巖石基(ji)礎開(kai)(kai)挖(wa)工(gong)(gong)(gong)(gong)程(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)術(shu)(shu)規(gui)范(fan)》(SL 47一1994)以(yi)及在(zai)《水(shui)電水(shui)利爆(bao)破(po)工(gong)(gong)(gong)(gong)程(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)術(shu)(shu)規(gui)范(fan)》(DL/T 5135—2001)和(he)(he)《水(shui)工(gong)(gong)(gong)(gong)建筑(zhu)物(wu)巖石基(ji)礎開(kai)(kai)挖(wa)工(gong)(gong)(gong)(gong)程(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)術(shu)(shu)規(gui)范(fan)》(DL/T 5389~2007)中(zhong)(zhong)預裂爆(bao)破(po)與光(guang)面(mian)爆(bao)破(po)均被(bei)編(bian)(bian)入并有所改進,DL/T 5135—2001正在(zai)修(xiu)編(bian)(bian)為DL/T 5135—2012。鐵道部(bu)也不(bu)僅規(gui)定(ding)了凡是(shi)Ⅲ級(ji)以(yi)上的(de)(de)巖石邊坡(po)(po),設計邊坡(po)(po)坡(po)(po)度為1:0.1~1:0.75,在(zai)邊坡(po)(po)部(bu)位(wei)的(de)(de)爆(bao)破(po)設計和(he)(he)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)都應(ying)采用光(guang)面(mian)爆(bao)破(po)或預裂爆(bao)破(po),并闡述了光(guang)面(mian)(預裂)爆(bao)破(po)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)技(ji)術(shu)(shu)設計的(de)(de)原則和(he)(he)參數(shu)、安全措施(shi)(shi)(shi),而且還(huan)明確(que)了路(lu)塹邊坡(po)(po)光(guang)面(mian)(預裂)爆(bao)破(po)項目(mu)質量(liang)驗(yan)收檢(jian)測數(shu)量(liang)和(he)(he)檢(jian)測方法。無疑(yi)該規(gui)程(cheng)的(de)(de)實施(shi)(shi)(shi),有力(li)地(di)推動和(he)(he)促進了光(guang)面(mian)(預裂)爆(bao)破(po)技(ji)術(shu)(shu)在(zai)鐵路(lu)建設中(zhong)(zhong)的(de)(de)應(ying)用與發展(zhan)。
在(zai)建造隧(sui)(sui)道(dao)(dao)的(de)(de)時(shi)候(hou),人(ren)們(men)首先想到的(de)(de)個方式,就是(shi)使(shi)用爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)技(ji)術(shu),開山挖(wa)隧(sui)(sui)道(dao)(dao)修路,常(chang)(chang)規爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)技(ji)術(shu)需(xu)要(yao)使(shi)用數以噸(dun)計的(de)(de)炸,炸的(de)(de)威(wei)力十分巨(ju)大,但是(shi)在(zai)炸完(wan)之后,空氣中全是(shi)煙塵(chen),根(gen)本(ben)無法進入(ru),另(ling)外常(chang)(chang)規爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)炸出來(lai)的(de)(de)輪廓線(xian)凹(ao)凸不平,后期常(chang)(chang)常(chang)(chang)需(xu)要(yao)工人(ren)進一(yi)(yi)步(bu)修補輪廓線(xian)才能進行下(xia)一(yi)(yi)道(dao)(dao)工序,耗(hao)時(shi)耗(hao)力,那(nei)么有(you)沒有(you)其他的(de)(de)方式比(bi)(bi)常(chang)(chang)規爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)技(ji)術(shu)更好呢?2018年3月,央視報道(dao)(dao)了一(yi)(yi)場隧(sui)(sui)道(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)對比(bi)(bi)實驗(yan),實驗(yan)采用兩種(zhong)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)技(ji)術(shu),滴(di)喲中是(shi)使(shi)用炸的(de)(de)常(chang)(chang)規爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)技(ji)術(shu),第二種(zhong)則是(shi)國人(ren)新(xin)發(fa)明的(de)(de)聚(ju)能水壓光(guang)面爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)技(ji)術(shu),隨(sui)著聲聲巨(ju)響(xiang),這場對比(bi)(bi)試驗(yan)的(de)(de)結(jie)果超乎(hu)所有(you)人(ren)的(de)(de)意(yi)料(liao),聚(ju)能水壓爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)技(ji)術(shu)的(de)(de)爆(bao)(bao)(bao)(bao)(bao)炸效(xiao)果更好,而且爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)產生(sheng)的(de)(de)水霧能將煙塵(chen)覆蓋,起到降塵(chen)的(de)(de)作用,這項爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)新(xin)方式得到了觀眾們(men)的(de)(de)認(ren)可。
專注(zhu)爆(bao)(bao)(bao)(bao)破(po)(po)聚(ju)能(neng)管批發(fa)銷售。隨著中(zhong)國現代(dai)化建設的(de)(de)(de)發(fa)展,爆(bao)(bao)(bao)(bao)破(po)(po)作(zuo)業(ye)環(huan)(huan)境(jing)越(yue)來(lai)越(yue)復雜(za),對(dui)爆(bao)(bao)(bao)(bao)破(po)(po)安(an)全(quan)(quan)(quan)的(de)(de)(de)要(yao)求可(ke)能(neng)也會越(yue)來(lai)越(yue)高。盡管我們工程(cheng)爆(bao)(bao)(bao)(bao)破(po)(po)技(ji)術(shu)已達到(dao)很高水(shui)平,爆(bao)(bao)(bao)(bao)破(po)(po)作(zuo)業(ye)是一(yi)(yi)項危險性的(de)(de)(de)工作(zuo),大家(jia)知道,一(yi)(yi)次爆(bao)(bao)(bao)(bao)破(po)(po)事故,可(ke)能(neng)會造成人(ren)民生命和(he)財產的(de)(de)(de)損失(shi),也可(ke)能(neng)導致環(huan)(huan)境(jing)受到(dao)破(po)(po)壞(huai)。為了(le)(le)安(an)全(quan)(quan)(quan),在(zai)工程(cheng)實踐(jian)中(zhong),往往有(you)許多要(yao)求和(he)標準需要(yao)我們努力去解決,比如嚴格(ge)控(kong)制爆(bao)(bao)(bao)(bao)破(po)(po)的(de)(de)(de)振動(dong)效(xiao)應(ying)、爆(bao)(bao)(bao)(bao)破(po)(po)沖擊波、噪聲、粉塵(chen)等(deng)影響(xiang),要(yao)預防電干擾等(deng)對(dui)爆(bao)(bao)(bao)(bao)破(po)(po)作(zuo)業(ye)的(de)(de)(de)威脅(xie),還要(yao)關(guan)注(zhu)水(shui)土保持、環(huan)(huan)境(jing)保護(hu)等(deng)問題。爆(bao)(bao)(bao)(bao)破(po)(po)作(zuo)業(ye)的(de)(de)(de)安(an)全(quan)(quan)(quan)問題一(yi)(yi)直(zhi)是各(ge)方面所重視(shi)的(de)(de)(de)問題,已形(xing)成了(le)(le)一(yi)(yi)種專業(ye)化的(de)(de)(de)規范、制度和(he)技(ji)術(shu)。如中(zhong)國自(zi)1992年(nian)頒(ban)布《拆(chai)除爆(bao)(bao)(bao)(bao)破(po)(po)安(an)全(quan)(quan)(quan)規程(cheng)》,通過拆(chai)除爆(bao)(bao)(bao)(bao)破(po)(po)分級管理(li)、承擔單位及(ji)人(ren)員資(zi)格(ge)審(shen)查(cha)、爆(bao)(bao)(bao)(bao)破(po)(po)技(ji)術(shu)人(ren)員培訓與考(kao)核、爆(bao)(bao)(bao)(bao)破(po)(po)設計審(shen)查(cha)與安(an)全(quan)(quan)(quan)評估等(deng)規定,有(you)力地推動(dong)了(le)(le)爆(bao)(bao)(bao)(bao)破(po)(po)工程(cheng)的(de)(de)(de)安(an)全(quan)(quan)(quan)管理(li),取得了(le)(le)顯(xian)著的(de)(de)(de)成效(xiao)。
水(shui)壓光(guang)面爆(bao)(bao)(bao)破(po)較(jiao)水(shui)壓光(guang)面爆(bao)(bao)(bao)破(po),在(zai)(zai)周(zhou)(zhou)邊眼(yan)(yan)單循(xun)環(huan)火工(gong)品使(shi)用(yong)量上節(jie)(jie)約(yue)(yue)費(fei)用(yong)8.3%,周(zhou)(zhou)邊眼(yan)(yan)鉆孔數量從39個(ge)下降為23個(ge)費(fei)用(yong)節(jie)(jie)約(yue)(yue)41%,混凝(ning)土噴射每延(yan)米節(jie)(jie)約(yue)(yue)1.37立方米。水(shui)壓光(guang)面爆(bao)(bao)(bao)破(po)比水(shui)壓光(guang)面爆(bao)(bao)(bao)破(po)每循(xun)環(huan)節(jie)(jie)約(yue)(yue)費(fei)用(yong)258.4元,即(ji)每延(yan)米節(jie)(jie)約(yue)(yue)76較(jiao)元,節(jie)(jie)約(yue)(yue)費(fei)用(yong)比例達(da)32%。此外,聚(ju)能(neng)(neng)(neng)管(guan)水(shui)壓光(guang)面爆(bao)(bao)(bao)破(po)能(neng)(neng)(neng)有(you)效(xiao)降低隧道(dao)內(nei)石渣塊度和粉塵含量,還可使(shi)通風時間有(you)效(xiao)縮短33%。聚(ju)能(neng)(neng)(neng)管(guan)光(guang)面爆(bao)(bao)(bao)破(po)工(gong)藝(yi)技(ji)術很(hen)成(cheng)熟(shu)、可操作性很(hen)強、材料成(cheng)本很(hen)低、施(shi)工(gong)速度很(hen)快、節(jie)(jie)能(neng)(neng)(neng)環(huan)保效(xiao)果很(hen)顯(xian)著、經濟效(xiao)益社會效(xiao)益很(hen)高。聚(ju)能(neng)(neng)(neng)管(guan)定向(xiang)爆(bao)(bao)(bao)破(po)技(ji)術是(shi)近幾年發(fa)展(zhan)起(qi)來的(de)(de)一(yi)項(xiang)掘進新技(ji)術,這種爆(bao)(bao)(bao)破(po)技(ji)術與傳統的(de)(de)光(guang)面爆(bao)(bao)(bao)破(po)技(ji)術有(you)一(yi)定的(de)(de)差(cha)別,聚(ju)能(neng)(neng)(neng)管(guan)定向(xiang)爆(bao)(bao)(bao)破(po)原理是(shi)在(zai)(zai)巷道(dao)周(zhou)(zhou)邊眼(yan)(yan)中,將(jiang)炸裝在(zai)(zai)聚(ju)能(neng)(neng)(neng)管(guan)中起(qi)爆(bao)(bao)(bao),爆(bao)(bao)(bao)破(po)時利用(yong)聚(ju)能(neng)(neng)(neng)管(guan)的(de)(de)聚(ju)能(neng)(neng)(neng)作用(yong),以減少裂隙(xi)的(de)(de)數量和控制優勢裂隙(xi)的(de)(de)發(fa)展(zhan)方向(xiang)。
給大家(jia)介紹下爆破(po)聚(ju)(ju)能(neng)管的(de)(de)技術原理∶炸藥(yao)爆炸產生(sheng)的(de)(de)爆轟波通過聚(ju)(ju)能(neng)管的(de)(de)聚(ju)(ju)能(neng)槽,將炸藥(yao)的(de)(de)動能(neng)、勢能(neng)轉換(huan)成(cheng)高壓、高速、高能(neng)的(de)(de)射(she)流(liu)(liu),切割演示成(cheng)縫(feng)。射(she)流(liu)(liu)在(zai)孔壁產生(sheng)射(she)流(liu)(liu)壓力達7000MPa,巖(yan)石動載(zai)抗壓強(qiang)度為(wei)200MPa,抗拉(la)為(wei)1/8~1/10的(de)(de)抗壓強(qiang)度,相鄰兩炮(pao)孔互為(wei)鄰空面,疊(die)加后的(de)(de)壓縮波變(bian)為(wei)稀疏波,在(zai)兩炮(pao)眼連線(xian)上使(shi)(shi)巖(yan)石結(jie)構斷裂(lie)(lie),形成(cheng)裂(lie)(lie)紋。準靜(jing)態氣(qi)體(ti)膨脹,靜(jing)態壓力在(zai)兩炮(pao)孔最(zui)短(duan)連線(xian)兩側產生(sheng)拉(la)力使(shi)(shi)巖(yan)石裂(lie)(lie)縫(feng)進(jin)一步擴展。根據爆破(po)應(ying)力集中(zhong)氣(qi)刃作用(yong)原則(ze),爆破(po)氣(qi)體(ti)沿裂(lie)(lie)縫(feng)進(jin)一步擴大貫通,拋落巖(yan)石。
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。專業多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,多向聚能管廠家用(yong)導(dao)爆(bao)(bao)(bao)索直接起爆(bao)(bao)(bao)炸(zha)藥(yao)包的方(fang)法(fa)(fa)叫導(dao)爆(bao)(bao)(bao)索起爆(bao)(bao)(bao)法(fa)(fa)。先用(yong)雷管(guan)(guan)起爆(bao)(bao)(bao)導(dao)爆(bao)(bao)(bao)索,當導(dao)爆(bao)(bao)(bao)索的爆(bao)(bao)(bao)轟(hong)波傳至炸(zha)藥(yao)包時(shi)(shi),將炸(zha)藥(yao)引爆(bao)(bao)(bao)。在需要(yao)延時(shi)(shi)分(fen)(fen)段起爆(bao)(bao)(bao)的地(di)方(fang),將導(dao)爆(bao)(bao)(bao)索中接入繼爆(bao)(bao)(bao)管(guan)(guan),就能達到導(dao)爆(bao)(bao)(bao)索毫秒爆(bao)(bao)(bao)破(po)的目的。這種(zhong)爆(bao)(bao)(bao)破(po)法(fa)(fa)所需起爆(bao)(bao)(bao)材料有(you):雷管(guan)(guan)、導(dao)爆(bao)(bao)(bao)索和繼爆(bao)(bao)(bao)管(guan)(guan)等。導(dao)爆(bao)(bao)(bao)索起爆(bao)(bao)(bao)網路(lu)常(chang)用(yong)的有(you):串聯、簇并(bing)聯、單(dan)向(xiang)分(fen)(fen)段并(bing)聯和雙向(xiang)分(fen)(fen)段并(bing)聯等。