聚(ju)(ju)能(neng)(neng)包(bao)由炸(zha)(zha)(zha)、形(xing)(xing)(xing)(xing)罩(zhao)(zhao)(zhao)、隔板(ban)、殼體(ti)、引信和(he)支(zhi)架等部分組成,其作(zuo)(zuo)(zuo)用(yong)(yong)(yong)及對(dui)(dui)聚(ju)(ju)能(neng)(neng)包(bao)威力(li)(li)的(de)(de)影響分述如(ru)下。1.炸(zha)(zha)(zha),炸(zha)(zha)(zha)是(shi)聚(ju)(ju)能(neng)(neng)管(guan)爆(bao)破的(de)(de)能(neng)(neng)源,炸(zha)(zha)(zha)的(de)(de)爆(bao)壓(ya)(ya)越大(da),聚(ju)(ju)能(neng)(neng)彈威力(li)(li)越大(da);為得到(dao)高爆(bao)壓(ya)(ya),需高爆(bao)速、高密度的(de)(de)炸(zha)(zha)(zha)。常(chang)用(yong)(yong)(yong)炸(zha)(zha)(zha)有(you)梯(ti)(ti)恩梯(ti)(ti)、8321炸(zha)(zha)(zha)等,裝方(fang)法有(you)熔鑄,塑裝和(he)壓(ya)(ya)裝多(duo)種(zhong)。2.型(xing)(xing)罩(zhao)(zhao)(zhao),型(xing)(xing)罩(zhao)(zhao)(zhao)的(de)(de)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)是(shi)把炸(zha)(zha)(zha)的(de)(de)爆(bao)炸(zha)(zha)(zha)能(neng)(neng)轉化成罩(zhao)(zhao)(zhao)體(ti)材(cai)(cai)料的(de)(de)射流(liu)動能(neng)(neng),從(cong)而提高其穿透和(he)切割(ge)能(neng)(neng)力(li)(li)。型(xing)(xing)罩(zhao)(zhao)(zhao)的(de)(de)材(cai)(cai)料必(bi)須(xu)滿足四點(dian)要(yao)求,即可壓(ya)(ya)縮性(xing)小、密度高、塑性(xing)和(he)延展性(xing)好,在(zai)形(xing)(xing)(xing)(xing)成射流(liu)中(zhong)(zhong)(zhong)不(bu)汽化。大(da)量試驗證明,用(yong)(yong)(yong)紫銅(tong)制作(zuo)(zuo)(zuo)型(xing)(xing)罩(zhao)(zhao)(zhao)效(xiao)果好,其次為鑄鐵、鋼和(he)陶瓷。型(xing)(xing)罩(zhao)(zhao)(zhao)的(de)(de)形(xing)(xing)(xing)(xing)狀多(duo)種(zhong)多(duo)樣,主要(yao)有(you)軸(zhou)(zhou)對(dui)(dui)稱(cheng)型(xing)(xing),如(ru)圓錐形(xing)(xing)(xing)(xing)、半(ban)球(qiu)形(xing)(xing)(xing)(xing)、拋物線形(xing)(xing)(xing)(xing)和(he)喇叭形(xing)(xing)(xing)(xing)等;面對(dui)(dui)稱(cheng)型(xing)(xing),常(chang)見的(de)(de)有(you)用(yong)(yong)(yong)于切割(ge)屬板(ban)材(cai)(cai)的(de)(de)直(zhi)線形(xing)(xing)(xing)(xing)和(he)用(yong)(yong)(yong)于切割(ge)管(guan)材(cai)(cai)的(de)(de)環形(xing)(xing)(xing)(xing)聚(ju)(ju)能(neng)(neng)罩(zhao)(zhao)(zhao)兩種(zhong);中(zhong)(zhong)(zhong)心對(dui)(dui)稱(cheng)型(xing)(xing),這種(zhong)球(qiu)形(xing)(xing)(xing)(xing)聚(ju)(ju)能(neng)(neng)包(bao),中(zhong)(zhong)(zhong)心有(you)球(qiu)形(xing)(xing)(xing)(xing)空腔和(he)球(qiu)形(xing)(xing)(xing)(xing)罩(zhao)(zhao)(zhao),球(qiu)形(xing)(xing)(xing)(xing)罩(zhao)(zhao)(zhao)外敷設炸(zha)(zha)(zha),若能(neng)(neng)在(zai)瞬間同時起爆(bao),可在(zai)空腔中(zhong)(zhong)(zhong)心點(dian)獲得極大(da)的(de)(de)能(neng)(neng)量集中(zhong)(zhong)(zhong)。在(zai)工程中(zhong)(zhong)(zhong)常(chang)用(yong)(yong)(yong)的(de)(de)是(shi)軸(zhou)(zhou)對(dui)(dui)稱(cheng)型(xing)(xing)和(he)面對(dui)(dui)稱(cheng)型(xing)(xing)兩類型(xing)(xing)罩(zhao)(zhao)(zhao)。
給大家介紹(shao)下(xia)爆(bao)破(po)聚能(neng)(neng)管(guan)(guan)的(de)(de)(de)技術原理∶炸(zha)藥爆(bao)炸(zha)產生的(de)(de)(de)爆(bao)轟(hong)波通過聚能(neng)(neng)管(guan)(guan)的(de)(de)(de)聚能(neng)(neng)槽(cao),將(jiang)炸(zha)藥的(de)(de)(de)動(dong)能(neng)(neng)、勢(shi)能(neng)(neng)轉換成高(gao)(gao)壓(ya)、高(gao)(gao)速、高(gao)(gao)能(neng)(neng)的(de)(de)(de)射流,切割演(yan)示成縫。射流在(zai)孔壁(bi)產生射流壓(ya)力達7000MPa,巖(yan)(yan)石(shi)動(dong)載(zai)抗壓(ya)強度為200MPa,抗拉為1/8~1/10的(de)(de)(de)抗壓(ya)強度,相鄰兩炮孔互為鄰空面,疊(die)加后的(de)(de)(de)壓(ya)縮波變為稀疏(shu)波,在(zai)兩炮眼(yan)連(lian)線(xian)上使巖(yan)(yan)石(shi)結構(gou)斷裂(lie),形成裂(lie)紋。準(zhun)靜態氣體(ti)膨脹,靜態壓(ya)力在(zai)兩炮孔最短連(lian)線(xian)兩側產生拉力使巖(yan)(yan)石(shi)裂(lie)縫進一步擴展(zhan)。根據(ju)爆(bao)破(po)應(ying)力集(ji)中氣刃作用原則,爆(bao)破(po)氣體(ti)沿(yan)裂(lie)縫進一步擴大貫通,拋落巖(yan)(yan)石(shi)。
專業爆破聚能管水壓光面爆破技術,是在水壓光面爆破技術基礎上發展起來的一項新技術,其掏槽眼、輔助眼裝藥結構和爆破方式與水壓光面爆破相同,但在周邊眼中安裝專用聚能管裝置替代常規爆破藥卷和傳爆線,利用聚能管產生的粒子射流動能、高壓爆破氣體應力及“氣楔”作用,形成平整圓順的開挖輪廓面,對控制超欠挖具有良好效果,有效提升了隧道施工質量、進度和經濟效益。河源爆破聚能管科學合(he)理地利用(yong)能(neng)(neng)(neng)源,提(ti)高能(neng)(neng)(neng)源利用(yong)效率,對節能(neng)(neng)(neng)減排也十分重要。利用(yong)聚能(neng)(neng)(neng)管兩(liang)端的(de)水(shui)平開出的(de)聚能(neng)(neng)(neng)槽產(chan)(chan)生的(de)聚能(neng)(neng)(neng)射流(liu)效應對巖石進行破碎。據專家測算,由于聚能(neng)(neng)(neng)管兩(liang)端聚能(neng)(neng)(neng)槽產(chan)(chan)生的(de)聚能(neng)(neng)(neng)切割(ge)效應,其(qi)能(neng)(neng)(neng)效比提(ti)升一個(ge)量級。
的(de)軍事應(ying)(ying)用:聚能(neng)(neng)爆(bao)(bao)(bao)破(po)技(ji)(ji)(ji)(ji)術,早在二(er)次世(shi)界大戰(zhan)期間就(jiu)(jiu)在軍事方面(mian)廣泛應(ying)(ying)用。國(guo)內在聚能(neng)(neng)破(po)甲技(ji)(ji)(ji)(ji)術如大錐(zhui)(zhui)角反艦(jian)導彈(dan)戰(zhan)斗部和大錐(zhui)(zhui)角反坦克地(di)雷以及敏感彈(dan)戰(zhan)斗部等方面(mian)取得了(le)較為快速的(de)發展,我國(guo)20世(shi)紀(ji)60年(nian)代(dai)打破(po)國(guo)外技(ji)(ji)(ji)(ji)術封鎖(suo)獨(du)立自主研發成功原子彈(dan)就(jiu)(jiu)是(shi)得力于(yu)聚能(neng)(neng)爆(bao)(bao)(bao)破(po)技(ji)(ji)(ji)(ji)術轟擊核裝(zhuang)置而(er)引爆(bao)(bao)(bao)原子彈(dan)。的(de)民爆(bao)(bao)(bao)應(ying)(ying)用——切槽(cao)爆(bao)(bao)(bao)破(po)技(ji)(ji)(ji)(ji)術:聚能(neng)(neng)爆(bao)(bao)(bao)破(po)用于(yu)工(gong)程建設也是(shi)20世(shi)紀(ji)60年(nian)代(dai)開始的(de),首(shou)先(xian)是(shi)瑞典的(de)U﹒Langefors提出孔(kong)壁切槽(cao)爆(bao)(bao)(bao)破(po)利用槽(cao)口應(ying)(ying)力集中定向(xiang)開裂(lie)的(de)設想(xiang),后(hou)經W﹒L﹒Fourney驗(yan)證是(shi)有效(xiao)的(de)。70年(nian)代(dai)國(guo)外廣泛研究和應(ying)(ying)用了(le)切槽(cao)爆(bao)(bao)(bao)破(po)技(ji)(ji)(ji)(ji)術。
發(fa)揮巨大效(xiao)力(li)的(de)(de)關鍵又在(zai)其上(shang)(shang)面的(de)(de)“聚(ju)能(neng)(neng)槽(cao)”上(shang)(shang)。項目(mu)(mu)部(bu)目(mu)(mu)前采(cai)(cai)用(yong)的(de)(de)聚(ju)能(neng)(neng)管有兩(liang)個(ge)“聚(ju)能(neng)(neng)槽(cao)”,通過(guo)這(zhe)兩(liang)個(ge)聚(ju)能(neng)(neng)槽(cao)的(de)(de)作(zuo)用(yong)讓爆(bao)炸的(de)(de)威(wei)力(li)在(zai)隧道中(zhong)切割(ge)出十(shi)分平(ping)順的(de)(de)輪廓線,的(de)(de)控(kong)制了(le)爆(bao)破量,有效(xiao)管控(kong)了(le)超挖欠挖的(de)(de)現象。為了(le)進(jin)一(yi)步(bu)嚴格控(kong)制開挖輪廓,達到提(ti)高光面爆(bao)破效(xiao)果的(de)(de)目(mu)(mu)的(de)(de),并研究出了(le)聚(ju)能(neng)(neng)管上(shang)(shang)兩(liang)個(ge)“聚(ju)能(neng)(neng)槽(cao)”變為三(san)個(ge)“聚(ju)能(neng)(neng)槽(cao)”的(de)(de)發(fa)明設(she)計(ji),目(mu)(mu)前,該發(fa)明設(she)計(ji)已經(jing)(jing)進(jin)入到了(le)試生產階段。未(wei)來,三(san)“聚(ju)能(neng)(neng)槽(cao)”設(she)計(ji)的(de)(de)聚(ju)能(neng)(neng)水壓爆(bao)破技(ji)(ji)術將推動中(zhong)鐵(tie)十(shi)四(si)局(ju)四(si)公司張吉懷鐵(tie)路(lu)項目(mu)(mu)部(bu)施工(gong)開展邁上(shang)(shang)一(yi)個(ge)新的(de)(de)臺階,給項目(mu)(mu)部(bu)帶來巨大的(de)(de)經(jing)(jing)濟效(xiao)益。工(gong)程爆(bao)破技(ji)(ji)術經(jing)(jing)過(guo)幾十(shi)年的(de)(de)發(fa)展,已經(jing)(jing)滲透到經(jing)(jing)濟建設(she)的(de)(de)眾多領域(yu),特別為中(zhong)國的(de)(de)鐵(tie)路(lu)建設(she)、礦山(shan)開采(cai)(cai)、城市(shi)拆舊(jiu)定向爆(bao)破等做出了(le)重(zhong)要貢獻。