水(shui)(shui)壓(ya)光(guang)面(mian)爆(bao)(bao)破(po)(po)技術基(ji)礎上發展起來的一項新(xin)技術,其掏槽眼、輔助眼裝藥(yao)結構(gou)和(he)爆(bao)(bao)破(po)(po)方(fang)式與水(shui)(shui)壓(ya)光(guang)面(mian)爆(bao)(bao)破(po)(po)相同,但(dan)在(zai)周邊眼中安裝專用(yong)(yong)線(xian)性聚(ju)能(neng)(neng)(neng)(neng)藥(yao)管(guan)替代常(chang)規爆(bao)(bao)破(po)(po)藥(yao)卷和(he)傳爆(bao)(bao)線(xian),利用(yong)(yong)線(xian)性聚(ju)能(neng)(neng)(neng)(neng)藥(yao)管(guan)產(chan)生的粒子射流動能(neng)(neng)(neng)(neng)、高壓(ya)爆(bao)(bao)破(po)(po)氣(qi)(qi)體應力及“氣(qi)(qi)楔”作用(yong)(yong),形成平(ping)整圓順的開挖輪廓面(mian),對(dui)控(kong)制超欠挖具有良好效(xiao)果,有效(xiao)提升(sheng)了隧道施(shi)工(gong)質量(liang)、進度(du)和(he)經濟效(xiao)益。水(shui)(shui)壓(ya)光(guang)面(mian)爆(bao)(bao)破(po)(po)較水(shui)(shui)壓(ya)光(guang)面(mian)爆(bao)(bao)破(po)(po),在(zai)周邊眼單循環(huan)火工(gong)品使用(yong)(yong)量(liang)上節(jie)(jie)約(yue)費用(yong)(yong)8.3%,周邊眼鉆孔數(shu)量(liang)從39個下降為23個費用(yong)(yong)節(jie)(jie)約(yue)41%,混凝土(tu)噴射每延米(mi)節(jie)(jie)約(yue)1.37立方(fang)米(mi)。聚(ju)能(neng)(neng)(neng)(neng)水(shui)(shui)壓(ya)光(guang)面(mian)爆(bao)(bao)破(po)(po)比水(shui)(shui)壓(ya)光(guang)面(mian)爆(bao)(bao)破(po)(po)每循環(huan)節(jie)(jie)約(yue)費用(yong)(yong)258.4元,即(ji)每延米(mi)節(jie)(jie)約(yue)76較元,節(jie)(jie)約(yue)費用(yong)(yong)比例達32%。此外(wai),聚(ju)能(neng)(neng)(neng)(neng)水(shui)(shui)壓(ya)光(guang)面(mian)爆(bao)(bao)破(po)(po)能(neng)(neng)(neng)(neng)有效(xiao)降低隧道內(nei)石渣塊度(du)和(he)粉塵(chen)含量(liang),還可使通(tong)風時間有效(xiao)縮短33%。
聚能(neng)(neng)(neng)包(bao)由(you)炸(zha)(zha)、形(xing)(xing)(xing)(xing)罩(zhao)(zhao)(zhao)、隔板、殼體、引信和(he)(he)支架等(deng)部分組成,其作(zuo)用(yong)及對聚能(neng)(neng)(neng)包(bao)威力的(de)(de)(de)影響分述(shu)如下。1.炸(zha)(zha),炸(zha)(zha)是聚能(neng)(neng)(neng)管(guan)爆(bao)破的(de)(de)(de)能(neng)(neng)(neng)源(yuan),炸(zha)(zha)的(de)(de)(de)爆(bao)壓越大(da),聚能(neng)(neng)(neng)彈威力越大(da);為得到高(gao)(gao)爆(bao)壓,需高(gao)(gao)爆(bao)速(su)、高(gao)(gao)密(mi)度(du)的(de)(de)(de)炸(zha)(zha)。常(chang)用(yong)炸(zha)(zha)有梯恩梯、8321炸(zha)(zha)等(deng),裝(zhuang)方(fang)法(fa)有熔鑄,塑(su)裝(zhuang)和(he)(he)壓裝(zhuang)多種。2.型(xing)罩(zhao)(zhao)(zhao),型(xing)罩(zhao)(zhao)(zhao)的(de)(de)(de)作(zuo)用(yong)是把炸(zha)(zha)的(de)(de)(de)爆(bao)炸(zha)(zha)能(neng)(neng)(neng)轉化成罩(zhao)(zhao)(zhao)體材料的(de)(de)(de)射流動能(neng)(neng)(neng),從而提高(gao)(gao)其穿透和(he)(he)切割(ge)能(neng)(neng)(neng)力。型(xing)罩(zhao)(zhao)(zhao)的(de)(de)(de)材料必須滿足四點要求(qiu),即可壓縮性(xing)(xing)(xing)小(xiao)、密(mi)度(du)高(gao)(gao)、塑(su)性(xing)(xing)(xing)和(he)(he)延展性(xing)(xing)(xing)好,在形(xing)(xing)(xing)(xing)成射流中(zhong)不汽化。大(da)量試驗(yan)證明,用(yong)紫(zi)銅制(zhi)作(zuo)型(xing)罩(zhao)(zhao)(zhao)效果好,其次為鑄鐵、鋼(gang)和(he)(he)陶瓷。型(xing)罩(zhao)(zhao)(zhao)的(de)(de)(de)形(xing)(xing)(xing)(xing)狀(zhuang)多種多樣,主要有軸對稱型(xing),如圓(yuan)錐形(xing)(xing)(xing)(xing)、半球形(xing)(xing)(xing)(xing)、拋物線形(xing)(xing)(xing)(xing)和(he)(he)喇叭形(xing)(xing)(xing)(xing)等(deng);面對稱型(xing),常(chang)見(jian)的(de)(de)(de)有用(yong)于切割(ge)屬板材的(de)(de)(de)直線形(xing)(xing)(xing)(xing)和(he)(he)用(yong)于切割(ge)管(guan)材的(de)(de)(de)環(huan)形(xing)(xing)(xing)(xing)聚能(neng)(neng)(neng)罩(zhao)(zhao)(zhao)兩(liang)種;中(zhong)心對稱型(xing),這種球形(xing)(xing)(xing)(xing)聚能(neng)(neng)(neng)包(bao),中(zhong)心有球形(xing)(xing)(xing)(xing)空(kong)腔(qiang)和(he)(he)球形(xing)(xing)(xing)(xing)罩(zhao)(zhao)(zhao),球形(xing)(xing)(xing)(xing)罩(zhao)(zhao)(zhao)外(wai)敷設炸(zha)(zha),若能(neng)(neng)(neng)在瞬間同時(shi)起爆(bao),可在空(kong)腔(qiang)中(zhong)心點獲(huo)得極大(da)的(de)(de)(de)能(neng)(neng)(neng)量集中(zhong)。在工程中(zhong)常(chang)用(yong)的(de)(de)(de)是軸對稱型(xing)和(he)(he)面對稱型(xing)兩(liang)類型(xing)罩(zhao)(zhao)(zhao)。
在工程爆破中,多向聚能管價格常用的起爆方法有:電力起爆法、導火索起爆法、導爆索起爆法、導爆管起爆法。電力起爆法是利用電能使雷管爆炸,進而起爆炸藥的起爆芳法。它所需的器材有:電雷管、導線和起爆電源。電爆網路的連接形式,要根據爆破方法、爆破規模、工程的重要性、所選起爆電源及其起爆能力等進行選擇,連云港多向聚能管基本連(lian)接方式(shi)有(you)(you):串(chuan)聯、并聯、串(chuan)并聯和并串(chuan)聯等。電(dian)(dian)(dian)(dian)力(li)(li)起(qi)(qi)爆法(fa)具有(you)(you)較(jiao)安全、可靠、準確、高(gao)效等優點(dian),在(zai)國內(nei)外仍占有(you)(you)較(jiao)大(da)(da)比重。在(zai)大(da)(da)、中(zhong)型(xing)爆破中(zhong),主要(yao)(yao)仍是(shi)用(yong)(yong)電(dian)(dian)(dian)(dian)力(li)(li)起(qi)(qi)爆。特別是(shi)在(zai)有(you)(you)瓦斯、礦塵爆炸的環境中(zhong),電(dian)(dian)(dian)(dian)力(li)(li)起(qi)(qi)爆是(shi)主要(yao)(yao)的起(qi)(qi)爆方法(fa)。但電(dian)(dian)(dian)(dian)力(li)(li)起(qi)(qi)爆容(rong)易受各種(zhong)電(dian)(dian)(dian)(dian)信(xin)號的干擾而發生早爆,因此(ci)在(zai)有(you)(you)雜散電(dian)(dian)(dian)(dian)、靜電(dian)(dian)(dian)(dian)、雷電(dian)(dian)(dian)(dian)、射頻電(dian)(dian)(dian)(dian)、高(gao)壓感應(ying)電(dian)(dian)(dian)(dian)的環境中(zhong),不能(neng)使(shi)用(yong)(yong)普通電(dian)(dian)(dian)(dian)雷管(guan)。
不成功的(de)(de)(de)事(shi)例(li)是(shi)有(you)的(de)(de)(de),如(ru)爆(bao)(bao)而不倒、實(shi)施(shi)定(ding)向爆(bao)(bao)破(po)(po)(po)后(hou)沒(mei)有(you)按(an)爆(bao)(bao)破(po)(po)(po)方案的(de)(de)(de)方向倒塌等(deng)等(deng)。這些事(shi)例(li)警示:從爆(bao)(bao)破(po)(po)(po)設(she)計、爆(bao)(bao)破(po)(po)(po)器材(cai)質量(liang)、爆(bao)(bao)破(po)(po)(po)施(shi)工(gong)到起(qi)爆(bao)(bao)網路連接等(deng),只要(yao)有(you)一個環(huan)節出(chu)現(xian)失(shi)誤,都將影響(xiang)爆(bao)(bao)破(po)(po)(po)工(gong)程的(de)(de)(de)效(xiao)果,乃(nai)至(zhi)造成嚴重的(de)(de)(de)后(hou)果。爆(bao)(bao)破(po)(po)(po)作(zuo)業無(wu)論(lun)是(shi)老舊(jiu)建筑物本身還是(shi)周圍環(huan)境都十分復雜,這不僅要(yao)求(qiu)認真調查爆(bao)(bao)破(po)(po)(po)體的(de)(de)(de)結(jie)構(包(bao)括(kuo)施(shi)工(gong)缺陷),分析(xi)受(shou)力狀況,同時還要(yao)對(dui)采取技術(shu)措(cuo)施(shi)(如(ru)預處理、嵌補、支撐等(deng))的(de)(de)(de)可靠(kao)和(he)(he)安(an)(an)全性(xing)進(jin)行分析(xi),對(dui)可能出(chu)現(xian)的(de)(de)(de)意外情況,應預先制(zhi)定(ding)應急方案,努力避免(mian)安(an)(an)全事(shi)故和(he)(he)不必要(yao)的(de)(de)(de)損失(shi)。工(gong)程的(de)(de)(de)環(huan)保(bao)性(xing)越(yue)來越(yue)受(shou)到人們的(de)(de)(de)關(guan)注,同時,探(tan)索無(wu)公害(hai)的(de)(de)(de)拆除爆(bao)(bao)破(po)(po)(po)技術(shu),一直(zhi)是(shi)爆(bao)(bao)破(po)(po)(po)工(gong)作(zuo)者追(zhui)求(qiu)的(de)(de)(de)目標。設(she)立掩(yan)蔽體對(dui)物體加以(yi)保(bao)護,簡單的(de)(de)(de)辦法是(shi)用草袋、竹笆一類材(cai)料覆蓋在(zai)需要(yao)保(bao)護的(de)(de)(de)物體上面;對(dui)房(fang)屋和(he)(he)機器設(she)備常要(yao)在(zai)迎面和(he)(he)頂(ding)部豎(shu)立排架,用木板或(huo)荊(jing)笆上罩鐵絲網,抵御較多的(de)(de)(de)飛石和(he)(he)較強(qiang)的(de)(de)(de)空(kong)氣沖(chong)擊(ji)波的(de)(de)(de)打擊(ji);對(dui)某些重要(yao)工(gong)程的(de)(de)(de)建筑物打防震(zhen)孔或(huo)者用預裂(lie)爆(bao)(bao)破(po)(po)(po)將爆(bao)(bao)破(po)(po)(po)區(qu)和(he)(he)被(bei)保(bao)護的(de)(de)(de)建筑物或(huo)工(gong)程設(she)施(shi)隔離(li)開來。
火(huo)(huo)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa),導(dao)(dao)(dao)火(huo)(huo)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa)是利用(yong)(yong)導(dao)(dao)(dao)火(huo)(huo)索(suo)(suo)傳遞(di)火(huo)(huo)焰點燃火(huo)(huo)雷管進而起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)炸(zha)(zha)(zha)藥(yao)(yao)。這(zhe)種(zhong)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa)所需(xu)的(de)材料有(you):導(dao)(dao)(dao)火(huo)(huo)索(suo)(suo)、火(huo)(huo)雷管和(he)(he)點火(huo)(huo)材料。導(dao)(dao)(dao)火(huo)(huo)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa)操(cao)作簡(jian)單、靈活(huo),使(shi)用(yong)(yong)方便,成本較低,廣泛應用(yong)(yong)于小型爆(bao)(bao)(bao)(bao)(bao)破(po)(po)和(he)(he)掘進。由于導(dao)(dao)(dao)火(huo)(huo)索(suo)(suo)的(de)速燃、緩燃等弊病,在爆(bao)(bao)(bao)(bao)(bao)破(po)(po)中(zhong)事故(gu)所占比重最(zui)大。不能多處裝藥(yao)(yao)同時起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)。導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa),用(yong)(yong)導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)(suo)直接起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)炸(zha)(zha)(zha)藥(yao)(yao)包(bao)的(de)方法(fa)(fa)叫導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa)。先用(yong)(yong)雷管起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)(suo),當(dang)導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)(suo)的(de)爆(bao)(bao)(bao)(bao)(bao)轟波傳至炸(zha)(zha)(zha)藥(yao)(yao)包(bao)時,將炸(zha)(zha)(zha)藥(yao)(yao)引爆(bao)(bao)(bao)(bao)(bao)。在需(xu)要延時分(fen)段(duan)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)的(de)地方,將導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)(suo)中(zhong)接入繼爆(bao)(bao)(bao)(bao)(bao)管,就能達到(dao)導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)(suo)毫秒爆(bao)(bao)(bao)(bao)(bao)破(po)(po)的(de)目的(de)。這(zhe)種(zhong)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)法(fa)(fa)所需(xu)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)材料有(you):雷管、導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)(suo)和(he)(he)繼爆(bao)(bao)(bao)(bao)(bao)管等。導(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)網路常用(yong)(yong)的(de)有(you):串聯、簇并(bing)(bing)聯、單向分(fen)段(duan)并(bing)(bing)聯和(he)(he)雙向分(fen)段(duan)并(bing)(bing)聯等。
的(de)(de)軍事應用(yong):聚(ju)能(neng)爆(bao)(bao)破技(ji)術,早在(zai)二次世(shi)界大戰(zhan)期間就在(zai)軍事方(fang)面廣泛(fan)(fan)應用(yong)。國(guo)內在(zai)聚(ju)能(neng)破甲(jia)技(ji)術如(ru)大錐(zhui)角反艦導彈(dan)戰(zhan)斗(dou)(dou)部和(he)大錐(zhui)角反坦克地雷以(yi)及敏(min)感彈(dan)戰(zhan)斗(dou)(dou)部等方(fang)面取(qu)得了較為快速的(de)(de)發(fa)展,我國(guo)20世(shi)紀60年代打(da)破國(guo)外技(ji)術封鎖獨立自主研(yan)(yan)發(fa)成功原(yuan)子彈(dan)就是(shi)(shi)得力于聚(ju)能(neng)爆(bao)(bao)破技(ji)術轟擊核裝(zhuang)置而引爆(bao)(bao)原(yuan)子彈(dan)。的(de)(de)民爆(bao)(bao)應用(yong)——切槽(cao)爆(bao)(bao)破技(ji)術:聚(ju)能(neng)爆(bao)(bao)破用(yong)于工程建設也是(shi)(shi)20世(shi)紀60年代開始的(de)(de),首先是(shi)(shi)瑞(rui)典的(de)(de)U﹒Langefors提出(chu)孔(kong)壁(bi)切槽(cao)爆(bao)(bao)破利(li)用(yong)槽(cao)口應力集中(zhong)定向開裂(lie)的(de)(de)設想,后經W﹒L﹒Fourney驗證是(shi)(shi)有效(xiao)的(de)(de)。70年代國(guo)外廣泛(fan)(fan)研(yan)(yan)究和(he)應用(yong)了切槽(cao)爆(bao)(bao)破技(ji)術。