水(shui)壓(ya)爆(bao)(bao)(bao)破(po)(po)(po)是在炮(pao)(pao)(pao)孔兩端填充水(shui)袋,中(zhong)(zhong)間裝上乳化(hua)炸,炮(pao)(pao)(pao)孔再用(yong)炮(pao)(pao)(pao)泥封死,炮(pao)(pao)(pao)孔間距(ju)(ju)(ju)很大,兩個炮(pao)(pao)(pao)空之間相距(ju)(ju)(ju)了一米(mi)左右(you),是常規(gui)爆(bao)(bao)(bao)破(po)(po)(po)的(de)炮(pao)(pao)(pao)孔間距(ju)(ju)(ju)的(de)兩倍,這(zhe)(zhe)樣可以節(jie)(jie)省(sheng)炮(pao)(pao)(pao)孔材料,這(zhe)(zhe)兩個凹槽又稱為聚能槽,聚能槽非(fei)常重要(yao),放置的(de)位(wei)置和方(fang)向都十分講究,一點也(ye)不(bu)能出錯,在爆(bao)(bao)(bao)破(po)(po)(po)的(de)瞬間,高溫高壓(ya)聚能射流立即往(wang)凹槽兩邊的(de)巖石(shi)進行切(qie)割,巖石(shi)如同豆腐一樣輕松被切(qie)割切(qie)割出來(lai)的(de)輪廓線十分平順,效(xiao)果(guo)極好,聚能水(shui)壓(ya)爆(bao)(bao)(bao)破(po)(po)(po)中(zhong)(zhong)的(de)水(shui)袋沒有降(jiang)低(di)爆(bao)(bao)(bao)破(po)(po)(po)的(de)效(xiao)果(guo),反而能保護隧道周(zhou)邊植(zhi)被,減(jian)少(shao)地質擾動,降(jiang)低(di)煙塵(chen),重要(yao)的(de)是節(jie)(jie)省(sheng)炸成本(ben),在未來(lai)這(zhe)(zhe)項(xiang)技術(shu)會廣泛應用(yong)于工(gong)程中(zhong)(zhong),降(jiang)低(di)施(shi)工(gong)成本(ben)。爆(bao)(bao)(bao)破(po)(po)(po)聚能管水(shui)壓(ya)光面(mian)爆(bao)(bao)(bao)破(po)(po)(po)較水(shui)壓(ya)光面(mian)爆(bao)(bao)(bao)破(po)(po)(po),在周(zhou)邊眼單(dan)循(xun)環火(huo)工(gong)品使用(yong)量上節(jie)(jie)約(yue)費(fei)用(yong)8.3%,周(zhou)邊眼鉆孔數量從39個下降(jiang)為23個費(fei)用(yong)節(jie)(jie)約(yue)41%,混凝土噴(pen)射每延米(mi)節(jie)(jie)約(yue)1.37立方(fang)米(mi)。
聚(ju)(ju)能(neng)(neng)藥(yao)(yao)包(bao)破(po)(po)碎法特點是(shi)(shi):不需要打眼(yan)(yan),因而(er)不需要購買打眼(yan)(yan)設備和(he)(he)動力設備;施(shi)工(gong)簡(jian)單,施(shi)工(gong)進(jin)度比(bi)淺(qian)眼(yan)(yan)爆破(po)(po)法快安(an)全性(xing)比(bi)普通淺(qian)眼(yan)(yan)爆破(po)(po)法和(he)(he)普通裸露(lu)藥(yao)(yao)包(bao)法好(hao);勞動強度比(bi)淺(qian)眼(yan)(yan)爆破(po)(po)法低。制(zhi)造(zao)聚(ju)(ju)能(neng)(neng)藥(yao)(yao)包(bao)所(suo)采(cai)用(yong)(yong)(yong)的(de)(de)(de)(de)炸(zha)(zha)藥(yao)(yao)有:黑索金(jin)和(he)(he)梯恩梯混合(he)熔鑄(zhu)型(xing);乳化油炸(zha)(zha)藥(yao)(yao)和(he)(he)黑索金(jin)混裝(zhuang)型(xing)和(he)(he)二號巖石硝(xiao)鉸炸(zha)(zha)藥(yao)(yao)壓(ya)制(zhi)型(xing)。根據使用(yong)(yong)(yong)的(de)(de)(de)(de)結果證(zheng)明,選(xuan)用(yong)(yong)(yong)密(mi)度較(jiao)(jiao)大(da)和(he)(he)爆速較(jiao)(jiao)高的(de)(de)(de)(de)炸(zha)(zha)藥(yao)(yao)制(zhi)造(zao)聚(ju)(ju)能(neng)(neng)藥(yao)(yao)包(bao)能(neng)(neng)獲得較(jiao)(jiao)好(hao)的(de)(de)(de)(de)破(po)(po)碎效果。這(zhe)主要是(shi)(shi)由于(yu)它加工(gong)簡(jian)單和(he)(he)破(po)(po)碎能(neng)(neng)力較(jiao)(jiao)大(da)。在(zai)礦山由于(yu)二次破(po)(po)碎消耗(hao)的(de)(de)(de)(de)藥(yao)(yao)包(bao)較(jiao)(jiao)多,而(er)且金(jin)屬藥(yao)(yao)型(xing)罩的(de)(de)(de)(de)加工(gong)費工(gong)又(you)費材(cai)料,所(suo)以(yi)多不采(cai)用(yong)(yong)(yong)藥(yao)(yao)型(xing)罩。國內生產的(de)(de)(de)(de)一種用(yong)(yong)(yong)于(yu)破(po)(po)碎大(da)塊的(de)(de)(de)(de)聚(ju)(ju)能(neng)(neng)藥(yao)(yao)包(bao),裝(zhuang)置聚(ju)(ju)能(neng)(neng)藥(yao)(yao)包(bao)時,要將藥(yao)(yao)包(bao)垂直(zhi)裝(zhuang)在(zai)大(da)塊的(de)(de)(de)(de)頂面上,聚(ju)(ju)能(neng)(neng)穴(xue)朝(chao)下(xia)。藥(yao)(yao)包(bao)位置應選(xuan)在(zai)頂面的(de)(de)(de)(de)幾何中心或附近較(jiao)(jiao)平整的(de)(de)(de)(de)地點。然后(hou)在(zai)上面覆蓋泥沙。
水(shui)壓光(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)較(jiao)(jiao)水(shui)壓光(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po),在(zai)周(zhou)邊(bian)眼單(dan)循環火工品使用(yong)量上節(jie)(jie)約費(fei)用(yong)8.3%,周(zhou)邊(bian)眼鉆孔數(shu)量從39個下降為23個費(fei)用(yong)節(jie)(jie)約41%,混凝土(tu)噴射每(mei)延米(mi)節(jie)(jie)約1.37立方(fang)米(mi)。水(shui)壓光(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)比水(shui)壓光(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)每(mei)循環節(jie)(jie)約費(fei)用(yong)258.4元,即每(mei)延米(mi)節(jie)(jie)約76較(jiao)(jiao)元,節(jie)(jie)約費(fei)用(yong)比例達32%。此(ci)外(wai),聚(ju)(ju)(ju)(ju)能(neng)管水(shui)壓光(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)能(neng)有(you)效(xiao)(xiao)降低隧道(dao)內(nei)石渣塊度和(he)粉塵(chen)含量,還可(ke)使通風時(shi)間有(you)效(xiao)(xiao)縮(suo)短33%。聚(ju)(ju)(ju)(ju)能(neng)管光(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)工藝技(ji)(ji)(ji)術(shu)(shu)(shu)很成(cheng)熟、可(ke)操作性很強、材料(liao)成(cheng)本很低、施工速(su)度很快(kuai)、節(jie)(jie)能(neng)環保效(xiao)(xiao)果很顯(xian)著(zhu)、經(jing)濟效(xiao)(xiao)益(yi)社會效(xiao)(xiao)益(yi)很高。聚(ju)(ju)(ju)(ju)能(neng)管定向爆(bao)(bao)(bao)破(po)技(ji)(ji)(ji)術(shu)(shu)(shu)是近幾年(nian)發展起來的一項掘(jue)進新技(ji)(ji)(ji)術(shu)(shu)(shu),這種爆(bao)(bao)(bao)破(po)技(ji)(ji)(ji)術(shu)(shu)(shu)與傳(chuan)統的光(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)技(ji)(ji)(ji)術(shu)(shu)(shu)有(you)一定的差別,聚(ju)(ju)(ju)(ju)能(neng)管定向爆(bao)(bao)(bao)破(po)原(yuan)理是在(zai)巷道(dao)周(zhou)邊(bian)眼中,將炸(zha)裝(zhuang)在(zai)聚(ju)(ju)(ju)(ju)能(neng)管中起爆(bao)(bao)(bao),爆(bao)(bao)(bao)破(po)時(shi)利用(yong)聚(ju)(ju)(ju)(ju)能(neng)管的聚(ju)(ju)(ju)(ju)能(neng)作用(yong),以減少(shao)裂隙(xi)(xi)的數(shu)量和(he)控(kong)制優勢裂隙(xi)(xi)的發展方(fang)向。
專業c型聚能管聚能包由炸、形罩、隔板、殼體、引信和支架等部分組成,其作用及對聚能包威力的影響分述如下。1.炸,炸是聚能管爆破的能源,炸的爆壓越大,聚能彈威力越大;為得到高爆壓,需高爆速、高密度的炸。常用炸有梯恩梯、8321炸等,裝方法有熔鑄,塑裝和壓裝多種。2.型罩,型罩的作用是把炸的爆炸能轉化成罩體材料的射流動能,從而提高其穿透和切割能力。c型聚能管價格型(xing)(xing)(xing)罩(zhao)(zhao)(zhao)的(de)(de)材(cai)料必須(xu)滿足四點要(yao)求,即可壓(ya)縮性小、密度高、塑性和延展性好,在形(xing)(xing)(xing)(xing)成射流(liu)中不(bu)汽(qi)化。大量試(shi)驗證明,用(yong)(yong)紫銅制(zhi)作型(xing)(xing)(xing)罩(zhao)(zhao)(zhao)效果(guo)好,其次為鑄鐵、鋼和陶瓷。型(xing)(xing)(xing)罩(zhao)(zhao)(zhao)的(de)(de)形(xing)(xing)(xing)(xing)狀多種多樣,主要(yao)有軸對(dui)稱(cheng)(cheng)型(xing)(xing)(xing),如圓錐形(xing)(xing)(xing)(xing)、半球(qiu)(qiu)(qiu)形(xing)(xing)(xing)(xing)、拋物(wu)線形(xing)(xing)(xing)(xing)和喇叭形(xing)(xing)(xing)(xing)等;面(mian)對(dui)稱(cheng)(cheng)型(xing)(xing)(xing),常見的(de)(de)有用(yong)(yong)于切(qie)割屬板材(cai)的(de)(de)直線形(xing)(xing)(xing)(xing)和用(yong)(yong)于切(qie)割管材(cai)的(de)(de)環形(xing)(xing)(xing)(xing)聚能(neng)罩(zhao)(zhao)(zhao)兩(liang)種;中心(xin)對(dui)稱(cheng)(cheng)型(xing)(xing)(xing),這種球(qiu)(qiu)(qiu)形(xing)(xing)(xing)(xing)聚能(neng)包,中心(xin)有球(qiu)(qiu)(qiu)形(xing)(xing)(xing)(xing)空腔(qiang)和球(qiu)(qiu)(qiu)形(xing)(xing)(xing)(xing)罩(zhao)(zhao)(zhao),球(qiu)(qiu)(qiu)形(xing)(xing)(xing)(xing)罩(zhao)(zhao)(zhao)外敷設炸,若能(neng)在瞬間同時起爆,可在空腔(qiang)中心(xin)點獲得極大的(de)(de)能(neng)量集(ji)中。在工程中常用(yong)(yong)的(de)(de)是(shi)軸對(dui)稱(cheng)(cheng)型(xing)(xing)(xing)和面(mian)對(dui)稱(cheng)(cheng)型(xing)(xing)(xing)兩(liang)類型(xing)(xing)(xing)罩(zhao)(zhao)(zhao)。
預(yu)裂(lie)(lie)與光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)技術的(de)歷史(shi)(shi)與現(xian)(xian)狀:預(yu)裂(lie)(lie)爆(bao)(bao)(bao)破(po)(po)(po)(po)是(shi)沿設計(ji)開(kai)(kai)挖邊(bian)界布置密(mi)集炮孔(kong)(kong),采取不耦合(he)裝藥或裝填低威力炸藥,在(zai)(zai)主爆(bao)(bao)(bao)區(qu)(qu)之前起爆(bao)(bao)(bao),從而(er)在(zai)(zai)爆(bao)(bao)(bao)區(qu)(qu)與保(bao)留區(qu)(qu)之間形成預(yu)裂(lie)(lie)縫,以減弱主爆(bao)(bao)(bao)破(po)(po)(po)(po)對(dui)保(bao)留巖體的(de)破(po)(po)(po)(po)壞并形成平整(zheng)輪(lun)廓面(mian)的(de)爆(bao)(bao)(bao)破(po)(po)(po)(po)作業。光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)是(shi)沿設計(ji)開(kai)(kai)挖邊(bian)界布設密(mi)集炮孔(kong)(kong),采用(yong)不耦合(he)裝藥或裝填低威力炸藥,在(zai)(zai)主爆(bao)(bao)(bao)區(qu)(qu)爆(bao)(bao)(bao)破(po)(po)(po)(po)之后(hou)起爆(bao)(bao)(bao)的(de)以形成平整(zheng)的(de)開(kai)(kai)挖輪(lun)廓面(mian)的(de)爆(bao)(bao)(bao)破(po)(po)(po)(po)作業。爆(bao)(bao)(bao)破(po)(po)(po)(po)技術的(de)發展是(shi)先(xian)出現(xian)(xian)光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po),然(ran)后(hou)衍(yan)生發展為預(yu)裂(lie)(lie)爆(bao)(bao)(bao)破(po)(po)(po)(po)。聚能(neng)管國內歷史(shi)(shi)與現(xian)(xian)狀,我國于1964~1965年(nian)在(zai)(zai)湖北陸水水電站施(shi)工中(zhong)(zhong)做過淺孔(kong)(kong)預(yu)裂(lie)(lie)爆(bao)(bao)(bao)破(po)(po)(po)(po)試驗(yan),1965年(nian)鐵道部門(men)在(zai)(zai)成昆(kun)鐵路(lu)建設中(zhong)(zhong)開(kai)(kai)始(shi)試驗(yan)光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po),1977年(nian)在(zai)(zai)西延線(xian)張(zhang)家船工點(dian),全長近200m的(de)2000m2路(lu)塹邊(bian)坡全部采用(yong)光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po),爆(bao)(bao)(bao)破(po)(po)(po)(po)后(hou)邊(bian)坡平整(zheng)穩定,殘留的(de)半孔(kong)(kong)清(qing)晰(xi)可見,是(shi)鐵路(lu)建設中(zhong)(zhong)采用(yong)路(lu)塹光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)。
光面(mian)爆破技術(shu)優勢(shi):相對于傳(chuan)統爆破工藝,聚(ju)能管光面(mian)爆破比常(chang)規爆破具有以(yi)下優勢(shi)∶少(shao)(shao)(shao)打眼,少(shao)(shao)(shao)裝(zhuang)藥。節(jie)約(yue)周邊鉆(zhan)孔(kong)量50%,總鉆(zhan)孔(kong)進尺減(jian)少(shao)(shao)(shao)30%;節(jie)約(yue)炸藥10~20%,雷(lei)管30%。節(jie)約(yue)噴漿料15-20%。節(jie)省時間(jian)(jian)∶每(mei)循環鉆(zhan)孔(kong)、裝(zhuang)藥、噴漿時間(jian)(jian)1.5-2.0小時。在安全方面(mian)利用水沙袋(dai)替代炮泥(ni),以(yi)避免搗(dao)炮泥(ni)損毀電(dian)雷(lei)管導線(xian),造成(cheng)(cheng)瞎(xia)炮。大(da)(da)(da)大(da)(da)(da)減(jian)少(shao)(shao)(shao)對圍巖擾動,光面(mian)效果好,巖性條件(jian)差情況下可以(yi)大(da)(da)(da)大(da)(da)(da)減(jian)少(shao)(shao)(shao)超(chao)挖(wa)量,控制巷道成(cheng)(cheng)型;巖性完整(zheng)無(wu)節(jie)理情況下眼痕率可以(yi)達到90%以(yi)上,巷道成(cheng)(cheng)型好,穩定(ding)性強。布(bu)孔(kong)方式優化成(cheng)(cheng)多排掏槽(cao)布(bu)孔(kong),單次掘進深度(du)可以(yi)優化提(ti)高10%到15%不(bu)等。由于炮孔(kong)數量大(da)(da)(da)大(da)(da)(da)減(jian)少(shao)(shao)(shao)可以(yi)考慮(lv)一起(qi)(qi)全斷面(mian)起(qi)(qi)爆,節(jie)省放炮時間(jian)(jian)。