在(zai)工(gong)程(cheng)爆(bao)(bao)(bao)(bao)破(po)中(zhong)(zhong)(zhong),常用(yong)(yong)的(de)(de)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)方(fang)(fang)(fang)法(fa)(fa)有(you):電(dian)(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa)(fa)、導(dao)火索起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa)(fa)、導(dao)爆(bao)(bao)(bao)(bao)索起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa)(fa)、導(dao)爆(bao)(bao)(bao)(bao)管起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa)(fa)。電(dian)(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa)(fa)是利用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)能使雷管爆(bao)(bao)(bao)(bao)炸(zha),進而起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)炸(zha)藥的(de)(de)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)芳法(fa)(fa)。它所(suo)需的(de)(de)器(qi)材有(you):電(dian)(dian)(dian)(dian)(dian)(dian)雷管、導(dao)線和起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)。電(dian)(dian)(dian)(dian)(dian)(dian)爆(bao)(bao)(bao)(bao)網路的(de)(de)連(lian)接形(xing)式(shi)(shi),要根據爆(bao)(bao)(bao)(bao)破(po)方(fang)(fang)(fang)法(fa)(fa)、爆(bao)(bao)(bao)(bao)破(po)規(gui)模、工(gong)程(cheng)的(de)(de)重要性、所(suo)選(xuan)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)及其起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)能力等進行選(xuan)擇,基本(ben)連(lian)接方(fang)(fang)(fang)式(shi)(shi)有(you):串(chuan)聯(lian)、并聯(lian)、串(chuan)并聯(lian)和并串(chuan)聯(lian)等。電(dian)(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa)(fa)具有(you)較安全、可靠、準確、高效等優點,在(zai)國內外仍(reng)占(zhan)有(you)較大比重。在(zai)大、中(zhong)(zhong)(zhong)型爆(bao)(bao)(bao)(bao)破(po)中(zhong)(zhong)(zhong),主(zhu)要仍(reng)是用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)。特別是在(zai)有(you)瓦斯、礦塵爆(bao)(bao)(bao)(bao)炸(zha)的(de)(de)環(huan)境中(zhong)(zhong)(zhong),電(dian)(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)是主(zhu)要的(de)(de)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)方(fang)(fang)(fang)法(fa)(fa)。但電(dian)(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)容易受各種電(dian)(dian)(dian)(dian)(dian)(dian)信號的(de)(de)干擾而發生早爆(bao)(bao)(bao)(bao),因(yin)此在(zai)有(you)雜散(san)電(dian)(dian)(dian)(dian)(dian)(dian)、靜電(dian)(dian)(dian)(dian)(dian)(dian)、雷電(dian)(dian)(dian)(dian)(dian)(dian)、射(she)頻電(dian)(dian)(dian)(dian)(dian)(dian)、高壓感應電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)環(huan)境中(zhong)(zhong)(zhong),不能使用(yong)(yong)普(pu)通電(dian)(dian)(dian)(dian)(dian)(dian)雷管。
聚(ju)能(neng)(neng)(neng)(neng)藥包(bao)破(po)碎(sui)(sui)法(fa)(fa)特點是(shi):不需(xu)要(yao)(yao)打(da)(da)眼,因而不需(xu)要(yao)(yao)購買打(da)(da)眼設(she)備和動力設(she)備;施工(gong)簡單(dan),施工(gong)進(jin)度比(bi)淺眼爆破(po)法(fa)(fa)快(kuai)安全(quan)性比(bi)普(pu)通(tong)淺眼爆破(po)法(fa)(fa)和普(pu)通(tong)裸露(lu)藥包(bao)法(fa)(fa)好(hao)(hao);勞(lao)動強度比(bi)淺眼爆破(po)法(fa)(fa)低(di)。制造聚(ju)能(neng)(neng)(neng)(neng)藥包(bao)所采用(yong)(yong)的(de)炸藥有:黑索金和梯恩梯混合熔鑄(zhu)型(xing);乳化油炸藥和黑索金混裝(zhuang)(zhuang)型(xing)和二號(hao)巖石硝鉸炸藥壓制型(xing)。根據使用(yong)(yong)的(de)結果證(zheng)明,選用(yong)(yong)密(mi)度較(jiao)大和爆速較(jiao)高的(de)炸藥制造聚(ju)能(neng)(neng)(neng)(neng)藥包(bao)能(neng)(neng)(neng)(neng)獲(huo)得較(jiao)好(hao)(hao)的(de)破(po)碎(sui)(sui)效(xiao)果。這主要(yao)(yao)是(shi)由于(yu)它加工(gong)簡單(dan)和破(po)碎(sui)(sui)能(neng)(neng)(neng)(neng)力較(jiao)大。在礦山由于(yu)二次破(po)碎(sui)(sui)消耗的(de)藥包(bao)較(jiao)多,而且(qie)金屬藥型(xing)罩(zhao)的(de)加工(gong)費工(gong)又費材料,所以多不采用(yong)(yong)藥型(xing)罩(zhao)。國內生產的(de)一種用(yong)(yong)于(yu)破(po)碎(sui)(sui)大塊(kuai)的(de)聚(ju)能(neng)(neng)(neng)(neng)藥包(bao),裝(zhuang)(zhuang)置聚(ju)能(neng)(neng)(neng)(neng)藥包(bao)時,要(yao)(yao)將藥包(bao)垂直裝(zhuang)(zhuang)在大塊(kuai)的(de)頂(ding)面上,聚(ju)能(neng)(neng)(neng)(neng)穴朝下。藥包(bao)位(wei)置應(ying)選在頂(ding)面的(de)幾(ji)何(he)中心或(huo)附近較(jiao)平整的(de)地點。然后在上面覆蓋泥沙。
聚(ju)(ju)能(neng)(neng)包由炸(zha)(zha)(zha)(zha)、形(xing)罩(zhao)(zhao)、隔(ge)板、殼體(ti)(ti)、引信和(he)支架等部(bu)分組成(cheng),其(qi)作(zuo)用及對聚(ju)(ju)能(neng)(neng)包威(wei)力的(de)(de)影(ying)響(xiang)分述如下。1.炸(zha)(zha)(zha)(zha),炸(zha)(zha)(zha)(zha)是聚(ju)(ju)能(neng)(neng)管(guan)爆(bao)(bao)破的(de)(de)能(neng)(neng)源,炸(zha)(zha)(zha)(zha)的(de)(de)爆(bao)(bao)壓(ya)越大,聚(ju)(ju)能(neng)(neng)彈威(wei)力越大;為得到高(gao)(gao)爆(bao)(bao)壓(ya),需高(gao)(gao)爆(bao)(bao)速、高(gao)(gao)密度的(de)(de)炸(zha)(zha)(zha)(zha)。常用炸(zha)(zha)(zha)(zha)有(you)(you)梯恩(en)梯、8321炸(zha)(zha)(zha)(zha)等,裝(zhuang)(zhuang)方法有(you)(you)熔鑄,塑裝(zhuang)(zhuang)和(he)壓(ya)裝(zhuang)(zhuang)多種。2.型(xing)罩(zhao)(zhao),型(xing)罩(zhao)(zhao)的(de)(de)作(zuo)用是把炸(zha)(zha)(zha)(zha)的(de)(de)爆(bao)(bao)炸(zha)(zha)(zha)(zha)能(neng)(neng)轉化成(cheng)罩(zhao)(zhao)體(ti)(ti)材料的(de)(de)射(she)流動能(neng)(neng),從而(er)提(ti)高(gao)(gao)其(qi)穿透和(he)切(qie)割能(neng)(neng)力。型(xing)罩(zhao)(zhao)的(de)(de)材料必須滿足四點(dian)要求(qiu),即可(ke)壓(ya)縮性(xing)小、密度高(gao)(gao)、塑性(xing)和(he)延(yan)展性(xing)好,在(zai)形(xing)成(cheng)射(she)流中(zhong)不汽化。大量(liang)試(shi)驗證(zheng)明,用紫銅制作(zuo)型(xing)罩(zhao)(zhao)效(xiao)果好,其(qi)次(ci)為鑄鐵、鋼(gang)和(he)陶瓷(ci)。型(xing)罩(zhao)(zhao)的(de)(de)形(xing)狀多種多樣,主(zhu)要有(you)(you)軸對稱(cheng)(cheng)型(xing),如圓錐形(xing)、半球(qiu)形(xing)、拋(pao)物(wu)線形(xing)和(he)喇叭(ba)形(xing)等;面對稱(cheng)(cheng)型(xing),常見(jian)的(de)(de)有(you)(you)用于(yu)切(qie)割屬(shu)板材的(de)(de)直線形(xing)和(he)用于(yu)切(qie)割管(guan)材的(de)(de)環(huan)形(xing)聚(ju)(ju)能(neng)(neng)罩(zhao)(zhao)兩種;中(zhong)心(xin)對稱(cheng)(cheng)型(xing),這種球(qiu)形(xing)聚(ju)(ju)能(neng)(neng)包,中(zhong)心(xin)有(you)(you)球(qiu)形(xing)空腔(qiang)和(he)球(qiu)形(xing)罩(zhao)(zhao),球(qiu)形(xing)罩(zhao)(zhao)外敷設炸(zha)(zha)(zha)(zha),若能(neng)(neng)在(zai)瞬間(jian)同時起爆(bao)(bao),可(ke)在(zai)空腔(qiang)中(zhong)心(xin)點(dian)獲得極大的(de)(de)能(neng)(neng)量(liang)集中(zhong)。在(zai)工程中(zhong)常用的(de)(de)是軸對稱(cheng)(cheng)型(xing)和(he)面對稱(cheng)(cheng)型(xing)兩類型(xing)罩(zhao)(zhao)。
淮南雙向爆破聚能管不成功的事例是有的,如爆而不倒、實施定向爆破后沒有按爆破方案的方向倒塌等等。這些事例警示:從爆破設計、爆破器材質量、爆破施工到起爆網路連接等,只要有一個環節出現失誤,都將影響爆破工程的效果,乃至造成嚴重的后果。雙向爆破聚能管公司爆(bao)破(po)作(zuo)業無(wu)(wu)論(lun)是老舊建筑(zhu)物本身還(huan)是周圍環境都十分(fen)復雜,這不(bu)僅(jin)要求(qiu)認真調查爆(bao)破(po)體(ti)的(de)結(jie)構(包(bao)括施(shi)工缺陷),分(fen)析(xi)(xi)受(shou)力狀(zhuang)況(kuang),同時還(huan)要對(dui)采取技術(shu)措施(shi)(如預(yu)處理(li)、嵌補、支撐(cheng)等)的(de)可(ke)(ke)靠(kao)和安全性進行分(fen)析(xi)(xi),對(dui)可(ke)(ke)能出現的(de)意(yi)外(wai)情況(kuang),應預(yu)先(xian)制定應急方案,努力避免(mian)安全事故(gu)和不(bu)必要的(de)損(sun)失。工程的(de)環保(bao)性越(yue)來越(yue)受(shou)到人們的(de)關注,同時,探索無(wu)(wu)公害的(de)拆除(chu)爆(bao)破(po)技術(shu),一直是爆(bao)破(po)工作(zuo)者(zhe)追求(qiu)的(de)目標(biao)。設(she)立掩蔽體(ti)對(dui)物體(ti)加以保(bao)護,簡單的(de)辦法(fa)是用草袋、竹(zhu)笆一類材料(liao)覆蓋在需要保(bao)護的(de)物體(ti)上(shang)面(mian)(mian);對(dui)房屋(wu)和機(ji)器設(she)備常要在迎面(mian)(mian)和頂(ding)部(bu)豎(shu)立排(pai)架,用木(mu)板(ban)或(huo)荊笆上(shang)罩鐵絲網,抵(di)御較(jiao)多(duo)的(de)飛石(shi)和較(jiao)強的(de)空氣沖擊波的(de)打擊;對(dui)某些(xie)重(zhong)要工程的(de)建筑(zhu)物打防震孔(kong)或(huo)者(zhe)用預(yu)裂(lie)爆(bao)破(po)將(jiang)爆(bao)破(po)區和被保(bao)護的(de)建筑(zhu)物或(huo)工程設(she)施(shi)隔(ge)離開來。
在(zai)建造(zao)隧(sui)道(dao)的(de)時(shi)候,人(ren)們首先想(xiang)到(dao)的(de)個方(fang)式(shi),就是(shi)(shi)使用(yong)(yong)(yong)(yong)爆(bao)破(po)技(ji)術(shu),開山挖隧(sui)道(dao)修路,常(chang)(chang)規(gui)(gui)爆(bao)破(po)技(ji)術(shu)需要使用(yong)(yong)(yong)(yong)數以(yi)噸計的(de)炸(zha),炸(zha)的(de)威力十分巨大,但是(shi)(shi)在(zai)炸(zha)完之后,空氣中全是(shi)(shi)煙(yan)(yan)塵(chen),根本無法進(jin)入,另(ling)外常(chang)(chang)規(gui)(gui)爆(bao)破(po)炸(zha)出(chu)來的(de)輪(lun)廓(kuo)線凹凸不(bu)平,后期常(chang)(chang)常(chang)(chang)需要工人(ren)進(jin)一步修補輪(lun)廓(kuo)線才能進(jin)行下一道(dao)工序(xu),耗時(shi)耗力,那(nei)么有(you)沒有(you)其他(ta)的(de)方(fang)式(shi)比常(chang)(chang)規(gui)(gui)爆(bao)破(po)技(ji)術(shu)更(geng)好(hao)呢?2018年(nian)3月,央視報道(dao)了一場隧(sui)道(dao)爆(bao)破(po)對比實驗(yan),實驗(yan)采用(yong)(yong)(yong)(yong)兩種爆(bao)破(po)技(ji)術(shu),滴(di)喲(yo)中是(shi)(shi)使用(yong)(yong)(yong)(yong)炸(zha)的(de)常(chang)(chang)規(gui)(gui)爆(bao)破(po)技(ji)術(shu),第(di)二種則(ze)是(shi)(shi)國人(ren)新發明(ming)的(de)聚能水壓光面(mian)爆(bao)破(po)技(ji)術(shu),隨著聲(sheng)聲(sheng)巨響(xiang),這場對比試驗(yan)的(de)結果超(chao)乎所有(you)人(ren)的(de)意料,聚能水壓爆(bao)破(po)技(ji)術(shu)的(de)爆(bao)炸(zha)效果更(geng)好(hao),而且爆(bao)破(po)產生的(de)水霧能將煙(yan)(yan)塵(chen)覆蓋,起(qi)到(dao)降塵(chen)的(de)作(zuo)用(yong)(yong)(yong)(yong),這項爆(bao)破(po)新方(fang)式(shi)得(de)到(dao)了觀眾們的(de)認可。
對(dui)于爆破(po)作(zuo)業安(an)(an)全(quan)(quan)(quan)技術(shu)的(de)(de)(de)(de)(de)研究(jiu),是(shi)(shi)從(cong)兩個方(fang)(fang)(fang)面去考(kao)慮(lv)的(de)(de)(de)(de)(de),一(yi)方(fang)(fang)(fang)面是(shi)(shi)炸和(he)(he)起爆器材以(yi)(yi)及對(dui)其爆炸所造成的(de)(de)(de)(de)(de)破(po)壞(huai)作(zuo)用進行限制的(de)(de)(de)(de)(de)安(an)(an)全(quan)(quan)(quan)技術(shu),這(zhe)是(shi)(shi)主動(dong)的(de)(de)(de)(de)(de)。另一(yi)個方(fang)(fang)(fang)面是(shi)(shi)對(dui)爆破(po)所產生的(de)(de)(de)(de)(de)危(wei)害采取的(de)(de)(de)(de)(de)防護措施(shi),這(zhe)是(shi)(shi)被動(dong)的(de)(de)(de)(de)(de)一(yi)個方(fang)(fang)(fang)面。兩者(zhe)對(dui)阻(zu)止爆破(po)帶來的(de)(de)(de)(de)(de)破(po)壞(huai)性(xing)有同(tong)樣的(de)(de)(de)(de)(de)重要性(xing),但在具體(ti)的(de)(de)(de)(de)(de)爆破(po)工(gong)程中,則常常會有變化(hua)不(bu)定(ding)的(de)(de)(de)(de)(de)現(xian)象和(he)(he)后(hou)果,因此(ci),必須(xu)對(dui)每一(yi)項工(gong)程破(po)壞(huai)的(de)(de)(de)(de)(de)具體(ti)情況作(zuo)細致的(de)(de)(de)(de)(de)分析研究(jiu),從(cong)而(er)采取適當的(de)(de)(de)(de)(de)對(dui)策(ce)。同(tong)時(shi),雖(sui)然技術(shu)不(bu)斷取得進步,須(xu)在操作(zuo)過程中注意每個工(gong)序,按(an)照(zhao)安(an)(an)全(quan)(quan)(quan)規(gui)程認真(zhen)作(zuo)業。只要嚴格遵守安(an)(an)全(quan)(quan)(quan)規(gui)程、正確地采取安(an)(an)全(quan)(quan)(quan)技術(shu)措施(shi)和(he)(he)防護措施(shi),任(ren)何規(gui)模(mo)、任(ren)何種類(lei)的(de)(de)(de)(de)(de)爆破(po)是(shi)(shi)可以(yi)(yi)確保(bao)安(an)(an)全(quan)(quan)(quan)的(de)(de)(de)(de)(de)。一(yi)些安(an)(an)全(quan)(quan)(quan)規(gui)定(ding)的(de)(de)(de)(de)(de)條文是(shi)(shi)有經驗教訓和(he)(he)理論根據的(de)(de)(de)(de)(de),有的(de)(de)(de)(de)(de)甚(shen)至是(shi)(shi)血(xue)的(de)(de)(de)(de)(de)教訓的(de)(de)(de)(de)(de)總結,所以(yi)(yi)一(yi)定(ding)要克服麻痹思想,嚴格執行安(an)(an)全(quan)(quan)(quan)規(gui)定(ding),決(jue)不(bu)能以(yi)(yi)沒出過事故而(er)輕率(lv)地"突破(po)"規(gui)定(ding)的(de)(de)(de)(de)(de)"框框"。