水(shui)壓光面(mian)(mian)爆(bao)破(po)技(ji)(ji)術(shu)在隧道(dao)(dao)掘進(jin)(jin)(jin)(jin)作(zuo)(zuo)業中的(de)實際應(ying)用。提(ti)升光面(mian)(mian)爆(bao)破(po)水(shui)平、嚴抓隧道(dao)(dao)超挖管(guan)控進(jin)(jin)(jin)(jin)行了(le)介紹。聚(ju)能水(shui)壓光面(mian)(mian)爆(bao)破(po)工(gong)藝技(ji)(ji)術(shu)很(hen)成熟、可(ke)操作(zuo)(zuo)性很(hen)強、材料成本(ben)很(hen)低、施工(gong)速度很(hen)快(kuai)、節(jie)能環(huan)保效果很(hen)顯著、經(jing)濟效益社會(hui)效益很(hen)高。一是(shi)要提(ti)高對推廣該(gai)項技(ji)(ji)術(shu)重要性和(he)必然性的(de)認識;二(er)是(shi)要樹立(li)必須采(cai)取聚(ju)能水(shui)壓光面(mian)(mian)爆(bao)破(po)的(de)意識;三是(shi)要堅持培訓、示范、監(jian)督(du)“三位一體(ti)”;四是(shi)要制(zhi)定切實的(de)獎懲制(zhi)度;五是(shi)要建立(li)檢查監(jian)督(du)機制(zhi),持續促進(jin)(jin)(jin)(jin)該(gai)項技(ji)(ji)術(shu)的(de)深入(ru)推廣。在隧道(dao)(dao)施工(gong)的(de)現場管(guan)理、科技(ji)(ji)創新、人才培養、經(jing)濟效益等方面(mian)(mian)的(de)不足。建議對施工(gong)一線基礎技(ji)(ji)術(shu)工(gong)作(zuo)(zuo)扎實推進(jin)(jin)(jin)(jin);對新工(gong)藝、先進(jin)(jin)(jin)(jin)工(gong)法要深入(ru)學習鉆研(yan);對消極懈怠、故步(bu)自封的(de)思想要堅決抵制(zhi)。
礦用型雙向聚能管廠家對于爆破作業安全技術的研究,是從兩個方面去考慮的,一方面是炸和起爆器材以及對其爆炸所造成的破壞作用進行限制的安全技術,這是主動的。另一個方面是對爆破所產生的危害采取的防護措施,這是被動的一個方面。兩者對阻止爆破帶來的破壞性有同樣的重要性,但在具體的爆破工程中,則常常會有變化不定的現象和后果,因此,必須對每一項工程破壞的具體情況作細致的分析研究,從而采取適當的對策。同時,礦用型雙向聚能管廠家雖(sui)然技術(shu)不斷取(qu)得進步,須在(zai)操作過程(cheng)中注意每個工序,按照安(an)(an)全規(gui)(gui)程(cheng)認真作業(ye)。只(zhi)要嚴格遵守安(an)(an)全規(gui)(gui)程(cheng)、正確(que)地采(cai)取(qu)安(an)(an)全技術(shu)措施和防護(hu)措施,任何規(gui)(gui)模、任何種類的(de)(de)爆破是可以(yi)確(que)保安(an)(an)全的(de)(de)。一些安(an)(an)全規(gui)(gui)定的(de)(de)條文是有經驗教訓和理論(lun)根據的(de)(de),有的(de)(de)甚(shen)至是血的(de)(de)教訓的(de)(de)總結,所以(yi)一定要克服麻痹(bi)思想,嚴格執行安(an)(an)全規(gui)(gui)定,決不能以(yi)沒出過事故而輕率地"突破"規(gui)(gui)定的(de)(de)"框框"。
在鐵路(lu)、礦(kuang)山、水庫等(deng)(deng)大(da)(da)型(xing)工(gong)(gong)(gong)程中(zhong),爆(bao)破(po)(po)(po)技術(shu)的(de)(de)作(zuo)用(yong)(yong)(yong)(yong)很關鍵很重(zhong)要(yao)。采(cai)礦(kuang)修(xiu)路(lu)的(de)(de)開(kai)(kai)山挖隧(sui)道,城市(shi)對舊建(jian)筑物的(de)(de)拆(chai)除(chu),都會(hui)用(yong)(yong)(yong)(yong)到(dao)爆(bao)破(po)(po)(po)技術(shu)。隨(sui)著(zhu)經濟(ji)的(de)(de)發展、工(gong)(gong)(gong)程建(jian)設(she)的(de)(de)增多,爆(bao)破(po)(po)(po)引起了(le)(le)人們更多的(de)(de)關注(zhu)。爆(bao)破(po)(po)(po)聚能管作(zuo)為一種(zhong)科(ke)學技術(shu),應用(yong)(yong)(yong)(yong)很廣,但在工(gong)(gong)(gong)程上的(de)(de)應用(yong)(yong)(yong)(yong)無疑(yi)是(shi)重(zhong)要(yao)、常見(jian)的(de)(de),采(cai)礦(kuang)開(kai)(kai)山,修(xiu)鐵路(lu)、公路(lu)用(yong)(yong)(yong)(yong)鉆爆(bao)法來開(kai)(kai)掘隧(sui)道,水利工(gong)(gong)(gong)程上也(ye)用(yong)(yong)(yong)(yong)一些,城市(shi)里面也(ye)使用(yong)(yong)(yong)(yong)了(le)(le),拆(chai)除(chu)樓房(fang)。利用(yong)(yong)(yong)(yong)炸爆(bao)炸產生(sheng)的(de)(de)巨大(da)(da)能量破(po)(po)(po)壞某(mou)種(zhong)物體的(de)(de)原結(jie)構(gou),這種(zhong)"破(po)(po)(po)壞"效(xiao)果(guo)不(bu)是(shi)其他方法能代替的(de)(de),它雖(sui)然不(bu)是(shi)獨立(li)完成一個工(gong)(gong)(gong)程,但卻是(shi)一個重(zhong)要(yao)的(de)(de)工(gong)(gong)(gong)序,特別是(shi)石方開(kai)(kai)挖、礦(kuang)山開(kai)(kai)采(cai)等(deng)(deng)工(gong)(gong)(gong)程缺少了(le)(le)這個工(gong)(gong)(gong)序還不(bu)行。中(zhong)國目前有發達的(de)(de)鐵路(lu)和公路(lu)交(jiao)通(tong)網,可(ke)以想(xiang)象,當(dang)初在修(xiu)這些路(lu)的(de)(de)時候會(hui)遇到(dao)許多高(gao)山峻(jun)嶺,一座大(da)(da)山橫(heng)在兩地之間,想(xiang)要(yao)修(xiu)路(lu),就必(bi)須讓這座山消失,這個時候聚能管爆(bao)破(po)(po)(po)就起到(dao)決定性作(zuo)用(yong)(yong)(yong)(yong)了(le)(le)。
水壓(ya)光面(mian)(mian)爆(bao)(bao)破(po)(po)技(ji)術,是在水壓(ya)光面(mian)(mian)爆(bao)(bao)破(po)(po)技(ji)術基礎上發展起來的(de)(de)(de)(de)(de)(de)一項新技(ji)術,其(qi)掏(tao)槽(cao)(cao)眼、輔助眼裝藥結構和(he)爆(bao)(bao)破(po)(po)方式(shi)與水壓(ya)光面(mian)(mian)爆(bao)(bao)破(po)(po)相同(tong),但在周邊(bian)眼中(zhong)安裝專用聚(ju)能(neng)(neng)(neng)管(guan)裝置替代常規爆(bao)(bao)破(po)(po)藥卷(juan)和(he)傳爆(bao)(bao)線,利(li)用聚(ju)能(neng)(neng)(neng)管(guan)產生(sheng)的(de)(de)(de)(de)(de)(de)粒(li)子射流動能(neng)(neng)(neng)、高壓(ya)爆(bao)(bao)破(po)(po)氣體應力及“氣楔”作(zuo)用,形成平整圓順的(de)(de)(de)(de)(de)(de)開(kai)挖輪廓面(mian)(mian),對控制超欠挖具有(you)良好效(xiao)(xiao)(xiao)果(guo),有(you)效(xiao)(xiao)(xiao)提(ti)升(sheng)了隧道(dao)施(shi)工質(zhi)量(liang)、進度和(he)經濟效(xiao)(xiao)(xiao)益(yi)。科學合理地(di)利(li)用能(neng)(neng)(neng)源,提(ti)高能(neng)(neng)(neng)源利(li)用效(xiao)(xiao)(xiao)率,對節能(neng)(neng)(neng)減排也十分重要。利(li)用聚(ju)能(neng)(neng)(neng)管(guan)兩端的(de)(de)(de)(de)(de)(de)水平開(kai)出的(de)(de)(de)(de)(de)(de)聚(ju)能(neng)(neng)(neng)槽(cao)(cao)產生(sheng)的(de)(de)(de)(de)(de)(de)聚(ju)能(neng)(neng)(neng)射流效(xiao)(xiao)(xiao)應對巖石(shi)進行破(po)(po)碎。據專家測算,由(you)于聚(ju)能(neng)(neng)(neng)管(guan)兩端聚(ju)能(neng)(neng)(neng)槽(cao)(cao)產生(sheng)的(de)(de)(de)(de)(de)(de)聚(ju)能(neng)(neng)(neng)切(qie)割效(xiao)(xiao)(xiao)應,其(qi)能(neng)(neng)(neng)效(xiao)(xiao)(xiao)比提(ti)升(sheng)一個量(liang)級。
各(ge)種爆(bao)(bao)破(po)(po)(po)(po)(po)(po)、爆(bao)(bao)破(po)(po)(po)(po)(po)(po)器(qi)材銷毀以及(ji)爆(bao)(bao)破(po)(po)(po)(po)(po)(po)器(qi)材意外(wai)爆(bao)(bao)炸時(shi),爆(bao)(bao)破(po)(po)(po)(po)(po)(po)源與(yu)人(ren)員(yuan)和(he)其(qi)他保護對象之間的安(an)(an)(an)全(quan)(quan)(quan)距(ju)(ju)(ju)(ju)(ju)(ju)離(li)(li)(li)稱為爆(bao)(bao)破(po)(po)(po)(po)(po)(po)安(an)(an)(an)全(quan)(quan)(quan)距(ju)(ju)(ju)(ju)(ju)(ju)離(li)(li)(li)。爆(bao)(bao)破(po)(po)(po)(po)(po)(po)安(an)(an)(an)全(quan)(quan)(quan)距(ju)(ju)(ju)(ju)(ju)(ju)離(li)(li)(li)應(ying)取各(ge)種爆(bao)(bao)破(po)(po)(po)(po)(po)(po)效(xiao)應(ying)(地(di)震、沖(chong)擊(ji)波、飛石、有(you)(you)毒(du)氣(qi)體等)分別核(he)定(ding)的大值。爆(bao)(bao)破(po)(po)(po)(po)(po)(po)時(shi),必(bi)然產生爆(bao)(bao)破(po)(po)(po)(po)(po)(po)地(di)震、空氣(qi)沖(chong)擊(ji)波、碎(sui)石飛散及(ji)有(you)(you)害氣(qi)體,因此(ci),爆(bao)(bao)破(po)(po)(po)(po)(po)(po)設計時(shi)必(bi)須(xu)(xu)確定(ding)爆(bao)(bao)破(po)(po)(po)(po)(po)(po)危害范圍,并確定(ding)爆(bao)(bao)點(dian)到附(fu)近人(ren)員(yuan)、設備、建(jian)筑物及(ji)井巷等的安(an)(an)(an)全(quan)(quan)(quan),這(zhe)一段(duan)距(ju)(ju)(ju)(ju)(ju)(ju)離(li)(li)(li)就稱為爆(bao)(bao)破(po)(po)(po)(po)(po)(po)安(an)(an)(an)全(quan)(quan)(quan)距(ju)(ju)(ju)(ju)(ju)(ju)離(li)(li)(li)。如何控制(zhi)好這(zhe)段(duan)距(ju)(ju)(ju)(ju)(ju)(ju)離(li)(li)(li)就顯的尤為重要。為保證(zheng)爆(bao)(bao)破(po)(po)(po)(po)(po)(po)安(an)(an)(an)全(quan)(quan)(quan),爆(bao)(bao)破(po)(po)(po)(po)(po)(po)地(di)點(dian)與(yu)人(ren)員(yuan)或其(qi)他應(ying)保護對象之間必(bi)須(xu)(xu)保持短(duan)的相(xiang)隔(ge)長(chang)度(du)。爆(bao)(bao)破(po)(po)(po)(po)(po)(po)有(you)(you)害效(xiao)應(ying)隨距(ju)(ju)(ju)(ju)(ju)(ju)離(li)(li)(li)的增(zeng)加有(you)(you)規律地(di)衰減,用距(ju)(ju)(ju)(ju)(ju)(ju)離(li)(li)(li)作為安(an)(an)(an)全(quan)(quan)(quan)尺度(du)可限定(ding)爆(bao)(bao)破(po)(po)(po)(po)(po)(po)有(you)(you)害效(xiao)應(ying)在允許(xu)限度(du)之內。中(zhong)國《爆(bao)(bao)破(po)(po)(po)(po)(po)(po)安(an)(an)(an)全(quan)(quan)(quan)規程》規定(ding)了爆(bao)(bao)破(po)(po)(po)(po)(po)(po)地(di)震安(an)(an)(an)全(quan)(quan)(quan)距(ju)(ju)(ju)(ju)(ju)(ju)離(li)(li)(li),個別飛散物安(an)(an)(an)全(quan)(quan)(quan)距(ju)(ju)(ju)(ju)(ju)(ju)離(li)(li)(li),以及(ji)爆(bao)(bao)炸沖(chong)擊(ji)波的安(an)(an)(an)全(quan)(quan)(quan)距(ju)(ju)(ju)(ju)(ju)(ju)離(li)(li)(li)。
光(guang)面(mian)(mian)爆(bao)破技術優(you)(you)勢:相對(dui)(dui)于傳統爆(bao)破工藝,聚能管(guan)光(guang)面(mian)(mian)爆(bao)破比常規爆(bao)破具有(you)以(yi)下(xia)(xia)優(you)(you)勢∶少打眼,少裝藥。節(jie)約(yue)周(zhou)邊鉆孔(kong)量50%,總鉆孔(kong)進(jin)尺減少30%;節(jie)約(yue)炸(zha)藥10~20%,雷管(guan)30%。節(jie)約(yue)噴(pen)漿料15-20%。節(jie)省(sheng)時間(jian)∶每循環(huan)鉆孔(kong)、裝藥、噴(pen)漿時間(jian)1.5-2.0小時。在安全方面(mian)(mian)利用水沙袋替代炮(pao)泥,以(yi)避(bi)免搗炮(pao)泥損毀(hui)電雷管(guan)導線(xian),造成(cheng)瞎炮(pao)。大(da)大(da)減少對(dui)(dui)圍巖(yan)(yan)擾動,光(guang)面(mian)(mian)效果好,巖(yan)(yan)性條件差情況(kuang)下(xia)(xia)可(ke)以(yi)大(da)大(da)減少超挖(wa)量,控(kong)制巷道(dao)成(cheng)型(xing);巖(yan)(yan)性完(wan)整無節(jie)理情況(kuang)下(xia)(xia)眼痕(hen)率可(ke)以(yi)達到(dao)90%以(yi)上,巷道(dao)成(cheng)型(xing)好,穩定性強。布(bu)孔(kong)方式(shi)優(you)(you)化(hua)成(cheng)多排掏(tao)槽布(bu)孔(kong),單次(ci)掘進(jin)深度可(ke)以(yi)優(you)(you)化(hua)提高10%到(dao)15%不等。由于炮(pao)孔(kong)數(shu)量大(da)大(da)減少可(ke)以(yi)考慮一起全斷(duan)面(mian)(mian)起爆(bao),節(jie)省(sheng)放炮(pao)時間(jian)。