聚(ju)能(neng)(neng)(neng)包(bao)由炸(zha)(zha)、形(xing)(xing)(xing)罩(zhao)(zhao)(zhao)、隔板(ban)、殼體、引信和支架等(deng)部分組成(cheng),其(qi)作用(yong)(yong)及對(dui)(dui)聚(ju)能(neng)(neng)(neng)包(bao)威力的(de)(de)(de)(de)(de)(de)(de)影響分述(shu)如下。1.炸(zha)(zha),炸(zha)(zha)是(shi)聚(ju)能(neng)(neng)(neng)管爆(bao)(bao)破(po)的(de)(de)(de)(de)(de)(de)(de)能(neng)(neng)(neng)源,炸(zha)(zha)的(de)(de)(de)(de)(de)(de)(de)爆(bao)(bao)壓(ya)(ya)越(yue)大,聚(ju)能(neng)(neng)(neng)彈威力越(yue)大;為(wei)得(de)到高(gao)(gao)(gao)爆(bao)(bao)壓(ya)(ya),需高(gao)(gao)(gao)爆(bao)(bao)速、高(gao)(gao)(gao)密度的(de)(de)(de)(de)(de)(de)(de)炸(zha)(zha)。常用(yong)(yong)炸(zha)(zha)有(you)梯恩梯、8321炸(zha)(zha)等(deng),裝方(fang)法(fa)有(you)熔鑄,塑裝和壓(ya)(ya)裝多種(zhong)。2.型(xing)(xing)罩(zhao)(zhao)(zhao),型(xing)(xing)罩(zhao)(zhao)(zhao)的(de)(de)(de)(de)(de)(de)(de)作用(yong)(yong)是(shi)把(ba)炸(zha)(zha)的(de)(de)(de)(de)(de)(de)(de)爆(bao)(bao)炸(zha)(zha)能(neng)(neng)(neng)轉化(hua)成(cheng)罩(zhao)(zhao)(zhao)體材料的(de)(de)(de)(de)(de)(de)(de)射(she)流(liu)動能(neng)(neng)(neng),從而提高(gao)(gao)(gao)其(qi)穿透和切(qie)(qie)割能(neng)(neng)(neng)力。型(xing)(xing)罩(zhao)(zhao)(zhao)的(de)(de)(de)(de)(de)(de)(de)材料必(bi)須滿足(zu)四點要求,即可(ke)壓(ya)(ya)縮性小、密度高(gao)(gao)(gao)、塑性和延展性好,在形(xing)(xing)(xing)成(cheng)射(she)流(liu)中(zhong)(zhong)(zhong)不汽化(hua)。大量試驗證明,用(yong)(yong)紫銅制作型(xing)(xing)罩(zhao)(zhao)(zhao)效果好,其(qi)次(ci)為(wei)鑄鐵(tie)、鋼和陶瓷。型(xing)(xing)罩(zhao)(zhao)(zhao)的(de)(de)(de)(de)(de)(de)(de)形(xing)(xing)(xing)狀(zhuang)多種(zhong)多樣(yang),主(zhu)要有(you)軸(zhou)對(dui)(dui)稱型(xing)(xing),如圓(yuan)錐形(xing)(xing)(xing)、半球形(xing)(xing)(xing)、拋(pao)物線(xian)形(xing)(xing)(xing)和喇叭形(xing)(xing)(xing)等(deng);面(mian)(mian)對(dui)(dui)稱型(xing)(xing),常見的(de)(de)(de)(de)(de)(de)(de)有(you)用(yong)(yong)于切(qie)(qie)割屬板(ban)材的(de)(de)(de)(de)(de)(de)(de)直線(xian)形(xing)(xing)(xing)和用(yong)(yong)于切(qie)(qie)割管材的(de)(de)(de)(de)(de)(de)(de)環形(xing)(xing)(xing)聚(ju)能(neng)(neng)(neng)罩(zhao)(zhao)(zhao)兩種(zhong);中(zhong)(zhong)(zhong)心對(dui)(dui)稱型(xing)(xing),這(zhe)種(zhong)球形(xing)(xing)(xing)聚(ju)能(neng)(neng)(neng)包(bao),中(zhong)(zhong)(zhong)心有(you)球形(xing)(xing)(xing)空腔(qiang)和球形(xing)(xing)(xing)罩(zhao)(zhao)(zhao),球形(xing)(xing)(xing)罩(zhao)(zhao)(zhao)外敷(fu)設炸(zha)(zha),若能(neng)(neng)(neng)在瞬間同時起爆(bao)(bao),可(ke)在空腔(qiang)中(zhong)(zhong)(zhong)心點獲(huo)得(de)極(ji)大的(de)(de)(de)(de)(de)(de)(de)能(neng)(neng)(neng)量集中(zhong)(zhong)(zhong)。在工(gong)程中(zhong)(zhong)(zhong)常用(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)是(shi)軸(zhou)對(dui)(dui)稱型(xing)(xing)和面(mian)(mian)對(dui)(dui)稱型(xing)(xing)兩類型(xing)(xing)罩(zhao)(zhao)(zhao)。
光(guang)面(mian)爆(bao)破(po)(po)技術優(you)勢(shi):相對于(yu)傳統爆(bao)破(po)(po)工(gong)藝,聚(ju)能管光(guang)面(mian)爆(bao)破(po)(po)比常規爆(bao)破(po)(po)具(ju)有以(yi)下(xia)優(you)勢(shi)∶少(shao)打眼,少(shao)裝藥。節(jie)約(yue)(yue)周邊鉆(zhan)孔(kong)(kong)量50%,總(zong)鉆(zhan)孔(kong)(kong)進(jin)尺(chi)減少(shao)30%;節(jie)約(yue)(yue)炸藥10~20%,雷管30%。節(jie)約(yue)(yue)噴(pen)漿(jiang)料15-20%。節(jie)省時間(jian)∶每循環鉆(zhan)孔(kong)(kong)、裝藥、噴(pen)漿(jiang)時間(jian)1.5-2.0小時。在安全(quan)方(fang)面(mian)利用水沙(sha)袋替代(dai)炮(pao)(pao)(pao)泥,以(yi)避(bi)免搗炮(pao)(pao)(pao)泥損毀電雷管導(dao)線(xian),造(zao)成(cheng)(cheng)瞎炮(pao)(pao)(pao)。大(da)大(da)減少(shao)對圍(wei)巖(yan)擾動(dong),光(guang)面(mian)效果好(hao),巖(yan)性條件差情況下(xia)可以(yi)大(da)大(da)減少(shao)超挖量,控制巷(xiang)(xiang)道(dao)成(cheng)(cheng)型;巖(yan)性完整無節(jie)理情況下(xia)眼痕率可以(yi)達到90%以(yi)上(shang),巷(xiang)(xiang)道(dao)成(cheng)(cheng)型好(hao),穩定性強。布孔(kong)(kong)方(fang)式優(you)化成(cheng)(cheng)多(duo)排掏槽布孔(kong)(kong),單次掘(jue)進(jin)深度可以(yi)優(you)化提(ti)高10%到15%不等。由于(yu)炮(pao)(pao)(pao)孔(kong)(kong)數量大(da)大(da)減少(shao)可以(yi)考慮一起(qi)全(quan)斷面(mian)起(qi)爆(bao),節(jie)省放炮(pao)(pao)(pao)時間(jian)。
水(shui)壓(ya)(ya)爆(bao)破(po)(po)是(shi)在炮孔(kong)兩端填充水(shui)袋,中(zhong)間(jian)裝上(shang)乳化炸,炮孔(kong)再用炮泥封死,炮孔(kong)間(jian)距很(hen)大,兩個炮空之間(jian)相(xiang)距了一(yi)米(mi)左(zuo)右(you),是(shi)常規爆(bao)破(po)(po)的(de)(de)炮孔(kong)間(jian)距的(de)(de)兩倍,這樣(yang)可以節省炮孔(kong)材料,這兩個凹槽(cao)又稱為(wei)聚(ju)能(neng)槽(cao),聚(ju)能(neng)槽(cao)非常重要(yao),放(fang)置的(de)(de)位(wei)置和方(fang)向都十分講究,一(yi)點也不能(neng)出(chu)錯,在爆(bao)破(po)(po)的(de)(de)瞬間(jian),高溫高壓(ya)(ya)聚(ju)能(neng)射流立即往凹槽(cao)兩邊(bian)的(de)(de)巖石(shi)進行切割,巖石(shi)如同豆腐一(yi)樣(yang)輕松被(bei)切割切割出(chu)來的(de)(de)輪(lun)廓線(xian)十分平順,效(xiao)果極好,聚(ju)能(neng)水(shui)壓(ya)(ya)爆(bao)破(po)(po)中(zhong)的(de)(de)水(shui)袋沒有(you)降(jiang)(jiang)低爆(bao)破(po)(po)的(de)(de)效(xiao)果,反而能(neng)保護隧(sui)道周(zhou)邊(bian)植被(bei),減(jian)少地質擾(rao)動,降(jiang)(jiang)低煙塵(chen),重要(yao)的(de)(de)是(shi)節省炸成本,在未來這項技(ji)術會廣(guang)泛(fan)應用于(yu)工(gong)(gong)程中(zhong),降(jiang)(jiang)低施(shi)工(gong)(gong)成本。爆(bao)破(po)(po)聚(ju)能(neng)管水(shui)壓(ya)(ya)光面爆(bao)破(po)(po)較水(shui)壓(ya)(ya)光面爆(bao)破(po)(po),在周(zhou)邊(bian)眼(yan)單循(xun)環火工(gong)(gong)品(pin)使(shi)用量上(shang)節約(yue)費用8.3%,周(zhou)邊(bian)眼(yan)鉆孔(kong)數量從39個下降(jiang)(jiang)為(wei)23個費用節約(yue)41%,混凝(ning)土噴射每延米(mi)節約(yue)1.37立方(fang)米(mi)。
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線性聚能藥管替代常規爆破藥卷和傳爆線,利用線性聚能藥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。專用深孔爆破聚能管水壓光面爆破較水壓光面爆破,在周邊眼單循環火工品使用量上節約費用8.3%,周邊眼鉆孔數量從39個下降為23個費用節約41%,混凝土噴射每延米節約1.37立方米。聚能水壓光面爆破比水壓光面爆破每循環節約費用258.4元,即每延米節約76較元,節約費用比例達32%。此外,專用深孔爆破聚能管聚能水壓(ya)光(guang)面爆(bao)破能有效(xiao)降低隧道內石渣塊度和粉塵含量,還可(ke)使通風時間(jian)有效(xiao)縮短(duan)33%。