火(huo)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa),導(dao)(dao)(dao)(dao)火(huo)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa)是利用(yong)(yong)導(dao)(dao)(dao)(dao)火(huo)索(suo)(suo)傳遞(di)火(huo)焰點(dian)燃火(huo)雷管(guan)(guan)進而起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)炸(zha)(zha)藥(yao)。這種起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa)所(suo)需的(de)(de)材料有:導(dao)(dao)(dao)(dao)火(huo)索(suo)(suo)、火(huo)雷管(guan)(guan)和點(dian)火(huo)材料。導(dao)(dao)(dao)(dao)火(huo)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa)操(cao)作簡(jian)單(dan)、靈活,使用(yong)(yong)方便,成本較(jiao)低,廣泛應用(yong)(yong)于小型爆(bao)(bao)(bao)(bao)破和掘進。由于導(dao)(dao)(dao)(dao)火(huo)索(suo)(suo)的(de)(de)速燃、緩燃等(deng)弊病,在爆(bao)(bao)(bao)(bao)破中(zhong)事故所(suo)占(zhan)比重最大。不能(neng)多(duo)處裝(zhuang)藥(yao)同時起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)。導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa),用(yong)(yong)導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)直接起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)炸(zha)(zha)藥(yao)包的(de)(de)方法(fa)叫(jiao)導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)法(fa)。先(xian)用(yong)(yong)雷管(guan)(guan)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo),當(dang)導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)的(de)(de)爆(bao)(bao)(bao)(bao)轟波傳至(zhi)炸(zha)(zha)藥(yao)包時,將(jiang)炸(zha)(zha)藥(yao)引爆(bao)(bao)(bao)(bao)。在需要延時分段起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)的(de)(de)地方,將(jiang)導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)中(zhong)接入繼爆(bao)(bao)(bao)(bao)管(guan)(guan),就能(neng)達到導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)毫秒(miao)爆(bao)(bao)(bao)(bao)破的(de)(de)目的(de)(de)。這種爆(bao)(bao)(bao)(bao)破法(fa)所(suo)需起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)材料有:雷管(guan)(guan)、導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)和繼爆(bao)(bao)(bao)(bao)管(guan)(guan)等(deng)。導(dao)(dao)(dao)(dao)爆(bao)(bao)(bao)(bao)索(suo)(suo)起(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)網路常用(yong)(yong)的(de)(de)有:串聯、簇并聯、單(dan)向分段并聯和雙向分段并聯等(deng)。
1、先試探(tan)性的(de)咨詢(xun)制造(zao)商(shang)銷售(shou)人(ren)(ren)員(yuan):您(nin)要(yao)(yao)訂(ding)爆破(po)線(xian)產品(pin)(pin)的(de)型(xing)號(hao)中(zhong)字母表示意思(si)(si);規格(ge)中(zhong)的(de)數字表示意思(si)(si);執行標準中(zhong)的(de)字母及(ji)數字的(de)表示意思(si)(si)。如(ru)(ru)果制造(zao)商(shang)銷售(shou)人(ren)(ren)員(yuan)回答時支支吾吾、一(yi)知半解甚(shen)至一(yi)無所知,可想而知,其生(sheng)產的(de)產品(pin)(pin)質量如(ru)(ru)何。2、任(ren)何一(yi)種產品(pin)(pin)都(dou)有(you)(you)其適用范(fan)圍(wei)和一(yi)定(ding)的(de)使用環境。咨詢(xun)您(nin)要(yao)(yao)訂(ding)爆破(po)線(xian)產品(pin)(pin)的(de)性能(neng)、具體(ti)使用辦法、使用環境要(yao)(yao)求(qiu)(qiu)。如(ru)(ru)果制造(zao)商(shang)銷售(shou)人(ren)(ren)員(yuan)給(gei)您(nin)的(de)答復與您(nin)的(de)要(yao)(yao)求(qiu)(qiu)不一(yi)致,應判定(ding)為:爆破(po)線(xian)制造(zao)商(shang)生(sheng)產的(de)產品(pin)(pin)型(xing)號(hao)規格(ge)單一(yi)或者其生(sheng)產的(de)產品(pin)(pin)只是對其他廠(chang)商(shang)產品(pin)(pin)的(de)簡(jian)單模仿。3、正規產品(pin)(pin)都(dou)有(you)(you)其科(ke)學的(de)生(sheng)產工(gong)藝和流(liu)程。原材(cai)料合(he)格(ge)供應商(shang)的(de)選擇評(ping)定(ding)→原材(cai)料購進、運輸、儲存、保管→生(sheng)產過(guo)(guo)程質量控制→不合(he)格(ge)品(pin)(pin)的(de)處置及(ji)糾正措施→運輸交付→售(shou)后服務均有(you)(you)嚴(yan)格(ge)的(de)操作規程。咨詢(xun)爆破(po)線(xian)制造(zao)商(shang)銷售(shou)人(ren)(ren)員(yuan)任(ren)何一(yi)個節點(dian),就可知其是否(fou)有(you)(you)能(neng)力(li)(生(sheng)產管理水(shui)平、專(zhuan)業設備(bei)及(ji)過(guo)(guo)程檢測設備(bei))生(sheng)產出合(he)格(ge)產品(pin)(pin)。
我國20世紀60年代利用斷裂力學對巖石損傷引起的裂紋擴展進行過試驗研究,深孔爆破多向聚能管廠家為聚能爆破技術應用到工程做了不少理論分析,也取得一些進展。80年代中期開始進行應用研究,以北京礦業學院為代表,著重研究了聚能藥包切割饑理和應用。1987年淮南礦業學院取得“雙面切割器”的zhuanli,1995年又取得“大理石花崗巖切割技術應用”zhuanli。1991年中國水電七局曾試圖采用硬質紙加工聚能藥管成形聚能藥卷做過聚能預裂爆破試驗研究,深孔爆破多向聚能管廠家但終因當時(shi)的技術(shu)及(ji)工藝水平的限(xian)制無(wu)法用于正常施(shi)工,但是他們開了橢(tuo)圓雙極線性聚能結構試(shi)驗的先河。雙聚能預裂與光面(mian)爆破綜合技術(shu)開創(chuang)輪廓控制爆破新時(shi)代。
預裂與(yu)光(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)技術的(de)(de)(de)(de)歷史與(yu)現狀:預裂爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)是(shi)沿設(she)(she)(she)計開挖邊(bian)界布置(zhi)密(mi)(mi)集炮孔(kong),采取(qu)不耦(ou)合裝(zhuang)藥(yao)或(huo)裝(zhuang)填(tian)低(di)威力(li)炸(zha)(zha)藥(yao),在(zai)(zai)(zai)主(zhu)爆(bao)(bao)(bao)(bao)(bao)區(qu)之(zhi)前起爆(bao)(bao)(bao)(bao)(bao),從而在(zai)(zai)(zai)爆(bao)(bao)(bao)(bao)(bao)區(qu)與(yu)保留(liu)區(qu)之(zhi)間形成(cheng)預裂縫,以減弱主(zhu)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)對(dui)保留(liu)巖(yan)體的(de)(de)(de)(de)破(po)(po)(po)(po)壞并形成(cheng)平整(zheng)輪(lun)廓面(mian)(mian)(mian)(mian)的(de)(de)(de)(de)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)作(zuo)業(ye)。光(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)是(shi)沿設(she)(she)(she)計開挖邊(bian)界布設(she)(she)(she)密(mi)(mi)集炮孔(kong),采用不耦(ou)合裝(zhuang)藥(yao)或(huo)裝(zhuang)填(tian)低(di)威力(li)炸(zha)(zha)藥(yao),在(zai)(zai)(zai)主(zhu)爆(bao)(bao)(bao)(bao)(bao)區(qu)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)之(zhi)后(hou)起爆(bao)(bao)(bao)(bao)(bao)的(de)(de)(de)(de)以形成(cheng)平整(zheng)的(de)(de)(de)(de)開挖輪(lun)廓面(mian)(mian)(mian)(mian)的(de)(de)(de)(de)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)作(zuo)業(ye)。爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)技術的(de)(de)(de)(de)發展是(shi)先(xian)出現光(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po),然后(hou)衍生發展為預裂爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)。聚能管國(guo)內(nei)歷史與(yu)現狀,我國(guo)于1964~1965年在(zai)(zai)(zai)湖北陸水水電(dian)站(zhan)施工(gong)中(zhong)做過(guo)淺孔(kong)預裂爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)試驗,1965年鐵(tie)道(dao)部門(men)在(zai)(zai)(zai)成(cheng)昆鐵(tie)路(lu)建設(she)(she)(she)中(zhong)開始(shi)試驗光(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po),1977年在(zai)(zai)(zai)西延(yan)線張家船工(gong)點,全(quan)(quan)長(chang)近(jin)200m的(de)(de)(de)(de)2000m2路(lu)塹邊(bian)坡全(quan)(quan)部采用光(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po),爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)后(hou)邊(bian)坡平整(zheng)穩定,殘留(liu)的(de)(de)(de)(de)半孔(kong)清晰可見,是(shi)鐵(tie)路(lu)建設(she)(she)(she)中(zhong)采用路(lu)塹光(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)(po)(po)。
聚能(neng)(neng)(neng)(neng)(neng)包(bao)(bao)由炸(zha)、形(xing)(xing)罩(zhao)(zhao)(zhao)、隔(ge)板、殼體、引信和(he)(he)支架等部分(fen)(fen)組(zu)成(cheng),其作用(yong)及對(dui)聚能(neng)(neng)(neng)(neng)(neng)包(bao)(bao)威力(li)(li)的(de)(de)影響分(fen)(fen)述如下(xia)。1.炸(zha),炸(zha)是聚能(neng)(neng)(neng)(neng)(neng)管爆破的(de)(de)能(neng)(neng)(neng)(neng)(neng)源,炸(zha)的(de)(de)爆壓(ya)(ya)越大(da)(da),聚能(neng)(neng)(neng)(neng)(neng)彈威力(li)(li)越大(da)(da);為得到(dao)高爆壓(ya)(ya),需高爆速(su)、高密度的(de)(de)炸(zha)。常用(yong)炸(zha)有(you)(you)梯(ti)恩(en)梯(ti)、8321炸(zha)等,裝(zhuang)方法(fa)有(you)(you)熔(rong)鑄(zhu),塑裝(zhuang)和(he)(he)壓(ya)(ya)裝(zhuang)多(duo)種(zhong)(zhong)。2.型(xing)罩(zhao)(zhao)(zhao),型(xing)罩(zhao)(zhao)(zhao)的(de)(de)作用(yong)是把(ba)炸(zha)的(de)(de)爆炸(zha)能(neng)(neng)(neng)(neng)(neng)轉化(hua)成(cheng)罩(zhao)(zhao)(zhao)體材(cai)料的(de)(de)射流動能(neng)(neng)(neng)(neng)(neng),從而提高其穿透和(he)(he)切(qie)割能(neng)(neng)(neng)(neng)(neng)力(li)(li)。型(xing)罩(zhao)(zhao)(zhao)的(de)(de)材(cai)料必須滿足四點要求,即可壓(ya)(ya)縮性(xing)小、密度高、塑性(xing)和(he)(he)延展性(xing)好,在(zai)形(xing)(xing)成(cheng)射流中(zhong)不汽(qi)化(hua)。大(da)(da)量試驗證明(ming),用(yong)紫(zi)銅制作型(xing)罩(zhao)(zhao)(zhao)效果好,其次為鑄(zhu)鐵、鋼和(he)(he)陶瓷。型(xing)罩(zhao)(zhao)(zhao)的(de)(de)形(xing)(xing)狀多(duo)種(zhong)(zhong)多(duo)樣,主要有(you)(you)軸對(dui)稱(cheng)型(xing),如圓錐形(xing)(xing)、半球(qiu)(qiu)形(xing)(xing)、拋物線形(xing)(xing)和(he)(he)喇(la)叭形(xing)(xing)等;面(mian)對(dui)稱(cheng)型(xing),常見(jian)的(de)(de)有(you)(you)用(yong)于(yu)切(qie)割屬(shu)板材(cai)的(de)(de)直線形(xing)(xing)和(he)(he)用(yong)于(yu)切(qie)割管材(cai)的(de)(de)環形(xing)(xing)聚能(neng)(neng)(neng)(neng)(neng)罩(zhao)(zhao)(zhao)兩種(zhong)(zhong);中(zhong)心對(dui)稱(cheng)型(xing),這種(zhong)(zhong)球(qiu)(qiu)形(xing)(xing)聚能(neng)(neng)(neng)(neng)(neng)包(bao)(bao),中(zhong)心有(you)(you)球(qiu)(qiu)形(xing)(xing)空腔和(he)(he)球(qiu)(qiu)形(xing)(xing)罩(zhao)(zhao)(zhao),球(qiu)(qiu)形(xing)(xing)罩(zhao)(zhao)(zhao)外敷設炸(zha),若(ruo)能(neng)(neng)(neng)(neng)(neng)在(zai)瞬間同時起爆,可在(zai)空腔中(zhong)心點獲得極大(da)(da)的(de)(de)能(neng)(neng)(neng)(neng)(neng)量集中(zhong)。在(zai)工程中(zhong)常用(yong)的(de)(de)是軸對(dui)稱(cheng)型(xing)和(he)(he)面(mian)對(dui)稱(cheng)型(xing)兩類型(xing)罩(zhao)(zhao)(zhao)。