發揮巨大(da)效(xiao)力的(de)(de)(de)(de)(de)關鍵又在(zai)其上(shang)(shang)面的(de)(de)(de)(de)(de)“聚(ju)(ju)能槽(cao)”上(shang)(shang)。項(xiang)(xiang)目部目前(qian)采用(yong)的(de)(de)(de)(de)(de)聚(ju)(ju)能管有兩(liang)(liang)個(ge)(ge)(ge)“聚(ju)(ju)能槽(cao)”,通過這(zhe)兩(liang)(liang)個(ge)(ge)(ge)聚(ju)(ju)能槽(cao)的(de)(de)(de)(de)(de)作用(yong)讓(rang)爆炸的(de)(de)(de)(de)(de)威力在(zai)隧道中(zhong)切(qie)割出(chu)十分平順(shun)的(de)(de)(de)(de)(de)輪廓線,的(de)(de)(de)(de)(de)控制了爆破(po)量(liang),有效(xiao)管控了超挖(wa)欠挖(wa)的(de)(de)(de)(de)(de)現象。為了進一步嚴格控制開挖(wa)輪廓,達到提高光(guang)面爆破(po)效(xiao)果的(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de),并研究出(chu)了聚(ju)(ju)能管上(shang)(shang)兩(liang)(liang)個(ge)(ge)(ge)“聚(ju)(ju)能槽(cao)”變(bian)為三個(ge)(ge)(ge)“聚(ju)(ju)能槽(cao)”的(de)(de)(de)(de)(de)發明(ming)設(she)計(ji)(ji),目前(qian),該(gai)發明(ming)設(she)計(ji)(ji)已(yi)經(jing)(jing)進入到了試生產階段。未來,三“聚(ju)(ju)能槽(cao)”設(she)計(ji)(ji)的(de)(de)(de)(de)(de)聚(ju)(ju)能水(shui)壓爆破(po)技術(shu)將(jiang)推動中(zhong)鐵(tie)十四局(ju)四公(gong)司張吉懷鐵(tie)路項(xiang)(xiang)目部施工開展邁上(shang)(shang)一個(ge)(ge)(ge)新的(de)(de)(de)(de)(de)臺階,給項(xiang)(xiang)目部帶來巨大(da)的(de)(de)(de)(de)(de)經(jing)(jing)濟效(xiao)益(yi)。工程爆破(po)技術(shu)經(jing)(jing)過幾十年的(de)(de)(de)(de)(de)發展,已(yi)經(jing)(jing)滲透到經(jing)(jing)濟建設(she)的(de)(de)(de)(de)(de)眾多領域,特(te)別為中(zhong)國的(de)(de)(de)(de)(de)鐵(tie)路建設(she)、礦山開采、城市拆舊定向爆破(po)等做出(chu)了重(zhong)要(yao)貢(gong)獻。
采(cai)用(yong)一種抗靜電(dian)阻燃的(de)(de)特種塑(su)料(liao)管(guan)(guan)、異形雙槽(cao)聚(ju)能管(guan)(guan),根(gen)據炮眼(yan)深度可(ke)長可(ke)短(duan)(duan)。是兩個相(xiang)似(si)半(ban)壁(bi)管(guan)(guan)組成(cheng),半(ban)壁(bi)管(guan)(guan)中央有(you)個凹進(jin)去(qu)的(de)(de)槽(cao)叫做'聚(ju)能槽(cao)",使用(yong)聚(ju)能管(guan)(guan)光面(mian)爆(bao)(bao)破(po)(po)成(cheng)型效果好,開挖(wa)輪廓線平順(shun)整齊,圍(wei)巖擾動減(jian)(jian)(jian)少(shao)(shao)、超欠挖(wa)明顯改善,有(you)利于支護工序施工,同時混凝(ning)土(tu)回填成(cheng)本(ben)大為降低(di)。鑿孔(kong)率減(jian)(jian)(jian)少(shao)(shao)30%,大大降低(di)了爆(bao)(bao)破(po)(po)作(zuo)業工班(ban)的(de)(de)勞動量:鉆孔(kong)縮(suo)短(duan)(duan)30分鐘、少(shao)(shao)打(da)眼(yan)、出渣量減(jian)(jian)(jian)少(shao)(shao),降低(di)了材料(liao)成(cheng)本(ben)、減(jian)(jian)(jian)少(shao)(shao)工時消(xiao)耗、勞動效率明顯提高(gao),周邊眼(yan)爆(bao)(bao)破(po)(po)成(cheng)本(ben)降低(di)30%以上,半(ban)眼(yan)痕保留率高(gao)達85%以上。pvc爆(bao)(bao)破(po)(po)聚(ju)能管(guan)(guan)主要(yao)應用(yong)于隧道(dao)、煤礦(kuang)、鐵礦(kuang)等需要(yao)進(jin)行光面(mian)爆(bao)(bao)破(po)(po)施工的(de)(de)工程。采(cai)用(yong)聚(ju)能管(guan)(guan)的(de)(de)光面(mian)爆(bao)(bao)破(po)(po)可(ke)減(jian)(jian)(jian)少(shao)(shao)鉆孔(kong),擴(kuo)大孔(kong)距,減(jian)(jian)(jian)少(shao)(shao)導爆(bao)(bao)管(guan)(guan)用(yong)量,減(jian)(jian)(jian)少(shao)(shao)超挖(wa),減(jian)(jian)(jian)少(shao)(shao)噴(pen)漿,提高(gao)半(ban)孔(kong)率,既節省(sheng)了成(cheng)本(ben)又提高(gao)了施工效率。
專業c型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。杭州c型聚能管科學合理(li)地(di)利(li)用(yong)能(neng)源,提高能(neng)源利(li)用(yong)效率,對節能(neng)減(jian)排也十分重(zhong)要。利(li)用(yong)聚(ju)能(neng)管兩端(duan)的水平(ping)開出(chu)的聚(ju)能(neng)槽產生的聚(ju)能(neng)射流效應(ying)對巖石進行(xing)破碎。據專家測算,由(you)于(yu)聚(ju)能(neng)管兩端(duan)聚(ju)能(neng)槽產生的聚(ju)能(neng)切割效應(ying),其能(neng)效比提升一個量(liang)級。
我國(guo)20世紀(ji)60年(nian)代利用(yong)斷裂(lie)(lie)力(li)學(xue)對巖(yan)石損傷引起的裂(lie)(lie)紋擴(kuo)展進行過(guo)試驗研究(jiu),為聚(ju)能(neng)爆(bao)破(po)(po)技(ji)術(shu)(shu)應用(yong)到(dao)工程做了不少(shao)理(li)(li)論分(fen)析,也(ye)取(qu)得(de)一些進展。80年(nian)代中(zhong)期(qi)開始進行應用(yong)研究(jiu),以北京(jing)礦(kuang)業學(xue)院(yuan)為代表,著重研究(jiu)了聚(ju)能(neng)藥包切(qie)割(ge)饑理(li)(li)和應用(yong)。1987年(nian)淮南礦(kuang)業學(xue)院(yuan)取(qu)得(de)“雙(shuang)面切(qie)割(ge)器”的zhuanli,1995年(nian)又取(qu)得(de)“大理(li)(li)石花崗巖(yan)切(qie)割(ge)技(ji)術(shu)(shu)應用(yong)”zhuanli。1991年(nian)中(zhong)國(guo)水(shui)電七局曾試圖采用(yong)硬質紙加工聚(ju)能(neng)藥管成形聚(ju)能(neng)藥卷做過(guo)聚(ju)能(neng)預裂(lie)(lie)爆(bao)破(po)(po)試驗研究(jiu),但終因當時的技(ji)術(shu)(shu)及工藝水(shui)平的限制無法用(yong)于正常施工,但是他們開了橢(tuo)圓雙(shuang)極線性(xing)聚(ju)能(neng)結構試驗的先河。雙(shuang)聚(ju)能(neng)預裂(lie)(lie)與光面爆(bao)破(po)(po)綜(zong)合技(ji)術(shu)(shu)開創輪廓控(kong)制爆(bao)破(po)(po)新時代。
施(shi)工工藝嚴格遵循六(liu)字方(fang)針(zhen)(掛滿、貼緊、對(dui)準(zhun)):(1)要(yao)(yao)保(bao)(bao)(bao)證(zheng)(zheng)炮(pao)(pao)(pao)眼(yan)打眼(yan)質(zhi)(zhi)量(liang),炮(pao)(pao)(pao)眼(yan)必須按技術要(yao)(yao)求合理布置。(2)要(yao)(yao)保(bao)(bao)(bao)證(zheng)(zheng)掏(tao)槽(cao)眼(yan)以及其(qi)他眼(yan)眼(yan)的(de)打眼(yan)質(zhi)(zhi)量(liang),一定要(yao)(yao)在(zai)規定位置上打眼(yan);二要(yao)(yao)保(bao)(bao)(bao)證(zheng)(zheng)炮(pao)(pao)(pao)眼(yan)深度和角度。(3)聚(ju)(ju)能(neng)(neng)(neng)(neng)管裝藥(yao)時(shi),要(yao)(yao)保(bao)(bao)(bao)證(zheng)(zheng)乳化炸藥(yao)在(zai)聚(ju)(ju)能(neng)(neng)(neng)(neng)管中(zhong)(zhong)空(kong)內壁中(zhong)(zhong)填(tian)(tian)充飽(bao)滿不得有空(kong)隙出現時(shi)以產(chan)生拒爆。(4)聚(ju)(ju)能(neng)(neng)(neng)(neng)管在(zai)炮(pao)(pao)(pao)眼(yan)中(zhong)(zhong)裝填(tian)(tian)時(shi),要(yao)(yao)保(bao)(bao)(bao)證(zheng)(zheng)聚(ju)(ju)能(neng)(neng)(neng)(neng)管的(de)兩條聚(ju)(ju)能(neng)(neng)(neng)(neng)槽(cao)指向巷道輪(lun)廓(kuo)線方(fang)向并且各(ge)個(ge)炮(pao)(pao)(pao)眼(yan)聚(ju)(ju)能(neng)(neng)(neng)(neng)管的(de)聚(ju)(ju)能(neng)(neng)(neng)(neng)槽(cao)軸(zhou)線方(fang)面(mian)要(yao)(yao)保(bao)(bao)(bao)證(zheng)(zheng)相(xiang)互(hu)連接(jie)在(zai)隧道輪(lun)廓(kuo)線上。否則成型效果不僅不好,反而更差(cha)。(5)保(bao)(bao)(bao)證(zheng)(zheng)炮(pao)(pao)(pao)眼(yan)堵塞質(zhi)(zhi)量(liang)。(6)放炮(pao)(pao)(pao)員應提前(qian)按規定裝好聚(ju)(ju)能(neng)(neng)(neng)(neng)管的(de)炸藥(yao),并做好準(zhun)備工作。試用范圍:一級(ji)至五級(ji)圍巖的(de)光面(mian)爆破(po)工程。
聚能(neng)包由炸(zha)(zha)、形(xing)(xing)(xing)罩(zhao)、隔板、殼體(ti)、引(yin)信和(he)支架等(deng)(deng)部(bu)分組成(cheng),其(qi)作用及對(dui)聚能(neng)包威力(li)的(de)(de)(de)影響分述如(ru)下(xia)。1.炸(zha)(zha),炸(zha)(zha)是(shi)聚能(neng)管爆破的(de)(de)(de)能(neng)源,炸(zha)(zha)的(de)(de)(de)爆壓(ya)(ya)越大(da),聚能(neng)彈威力(li)越大(da);為(wei)(wei)得(de)到高(gao)爆壓(ya)(ya),需高(gao)爆速、高(gao)密度(du)的(de)(de)(de)炸(zha)(zha)。常(chang)用炸(zha)(zha)有(you)梯(ti)恩梯(ti)、8321炸(zha)(zha)等(deng)(deng),裝方法有(you)熔鑄,塑裝和(he)壓(ya)(ya)裝多種。2.型(xing)(xing)(xing)罩(zhao),型(xing)(xing)(xing)罩(zhao)的(de)(de)(de)作用是(shi)把炸(zha)(zha)的(de)(de)(de)爆炸(zha)(zha)能(neng)轉化成(cheng)罩(zhao)體(ti)材(cai)料的(de)(de)(de)射流動能(neng),從而提高(gao)其(qi)穿透和(he)切(qie)割(ge)能(neng)力(li)。型(xing)(xing)(xing)罩(zhao)的(de)(de)(de)材(cai)料必須(xu)滿足四點(dian)要求,即可壓(ya)(ya)縮性小、密度(du)高(gao)、塑性和(he)延展性好,在(zai)(zai)(zai)形(xing)(xing)(xing)成(cheng)射流中(zhong)(zhong)(zhong)不汽化。大(da)量試(shi)驗證明,用紫銅(tong)制作型(xing)(xing)(xing)罩(zhao)效果好,其(qi)次為(wei)(wei)鑄鐵、鋼和(he)陶瓷(ci)。型(xing)(xing)(xing)罩(zhao)的(de)(de)(de)形(xing)(xing)(xing)狀(zhuang)多種多樣,主要有(you)軸對(dui)稱型(xing)(xing)(xing),如(ru)圓錐(zhui)形(xing)(xing)(xing)、半球(qiu)形(xing)(xing)(xing)、拋物線(xian)形(xing)(xing)(xing)和(he)喇叭形(xing)(xing)(xing)等(deng)(deng);面(mian)對(dui)稱型(xing)(xing)(xing),常(chang)見的(de)(de)(de)有(you)用于(yu)切(qie)割(ge)屬板材(cai)的(de)(de)(de)直線(xian)形(xing)(xing)(xing)和(he)用于(yu)切(qie)割(ge)管材(cai)的(de)(de)(de)環(huan)形(xing)(xing)(xing)聚能(neng)罩(zhao)兩(liang)種;中(zhong)(zhong)(zhong)心對(dui)稱型(xing)(xing)(xing),這(zhe)種球(qiu)形(xing)(xing)(xing)聚能(neng)包,中(zhong)(zhong)(zhong)心有(you)球(qiu)形(xing)(xing)(xing)空(kong)腔和(he)球(qiu)形(xing)(xing)(xing)罩(zhao),球(qiu)形(xing)(xing)(xing)罩(zhao)外敷(fu)設炸(zha)(zha),若能(neng)在(zai)(zai)(zai)瞬間同時(shi)起爆,可在(zai)(zai)(zai)空(kong)腔中(zhong)(zhong)(zhong)心點(dian)獲(huo)得(de)極大(da)的(de)(de)(de)能(neng)量集中(zhong)(zhong)(zhong)。在(zai)(zai)(zai)工程中(zhong)(zhong)(zhong)常(chang)用的(de)(de)(de)是(shi)軸對(dui)稱型(xing)(xing)(xing)和(he)面(mian)對(dui)稱型(xing)(xing)(xing)兩(liang)類型(xing)(xing)(xing)罩(zhao)。