水(shui)壓(ya)光面(mian)(mian)(mian)爆(bao)破(po)技(ji)術(shu)(shu)(shu)在隧(sui)(sui)道掘進(jin)(jin)(jin)作(zuo)業(ye)中的實(shi)際應用。提升光面(mian)(mian)(mian)爆(bao)破(po)水(shui)平、嚴抓隧(sui)(sui)道超挖(wa)管(guan)控進(jin)(jin)(jin)行了介紹。聚(ju)能水(shui)壓(ya)光面(mian)(mian)(mian)爆(bao)破(po)工(gong)(gong)藝(yi)技(ji)術(shu)(shu)(shu)很(hen)(hen)成熟(shu)、可操作(zuo)性很(hen)(hen)強(qiang)、材料成本(ben)很(hen)(hen)低、施工(gong)(gong)速度很(hen)(hen)快、節能環保效果很(hen)(hen)顯(xian)著、經濟效益(yi)社(she)會效益(yi)很(hen)(hen)高(gao)。一是要(yao)提高(gao)對(dui)推廣該(gai)項技(ji)術(shu)(shu)(shu)重要(yao)性和必然性的認識(shi);二是要(yao)樹立(li)必須(xu)采取聚(ju)能水(shui)壓(ya)光面(mian)(mian)(mian)爆(bao)破(po)的意識(shi);三是要(yao)堅(jian)持培訓、示范、監(jian)督“三位(wei)一體”;四是要(yao)制定切(qie)實(shi)的獎(jiang)懲制度;五是要(yao)建立(li)檢查監(jian)督機制,持續促進(jin)(jin)(jin)該(gai)項技(ji)術(shu)(shu)(shu)的深(shen)入(ru)推廣。在隧(sui)(sui)道施工(gong)(gong)的現場管(guan)理、科技(ji)創新(xin)、人(ren)才培養、經濟效益(yi)等(deng)方面(mian)(mian)(mian)的不足。建議(yi)對(dui)施工(gong)(gong)一線基礎技(ji)術(shu)(shu)(shu)工(gong)(gong)作(zuo)扎實(shi)推進(jin)(jin)(jin);對(dui)新(xin)工(gong)(gong)藝(yi)、先進(jin)(jin)(jin)工(gong)(gong)法要(yao)深(shen)入(ru)學習鉆研;對(dui)消極懈怠、故步自封的思想要(yao)堅(jian)決抵制。
采用(yong)一種(zhong)抗(kang)靜電阻燃的(de)(de)特種(zhong)塑(su)料管(guan)(guan)(guan)、異形雙槽聚(ju)(ju)能(neng)管(guan)(guan)(guan),根(gen)據炮眼(yan)深度(du)可(ke)長可(ke)短。是兩個相似(si)半壁管(guan)(guan)(guan)組成(cheng)(cheng)(cheng),半壁管(guan)(guan)(guan)中央(yang)有個凹(ao)進(jin)(jin)去的(de)(de)槽叫做'聚(ju)(ju)能(neng)槽",使用(yong)聚(ju)(ju)能(neng)管(guan)(guan)(guan)光面爆破(po)(po)成(cheng)(cheng)(cheng)型效果好,開挖輪廓線平順整齊(qi),圍巖擾動減(jian)少(shao)(shao)、超欠挖明顯(xian)改善,有利(li)于支護工(gong)(gong)(gong)序施(shi)工(gong)(gong)(gong),同時混凝土回填成(cheng)(cheng)(cheng)本(ben)大為(wei)降(jiang)(jiang)低(di)。鑿孔(kong)率(lv)減(jian)少(shao)(shao)30%,大大降(jiang)(jiang)低(di)了(le)爆破(po)(po)作業工(gong)(gong)(gong)班的(de)(de)勞動量(liang):鉆孔(kong)縮(suo)短30分(fen)鐘(zhong)、少(shao)(shao)打眼(yan)、出渣量(liang)減(jian)少(shao)(shao),降(jiang)(jiang)低(di)了(le)材料成(cheng)(cheng)(cheng)本(ben)、減(jian)少(shao)(shao)工(gong)(gong)(gong)時消耗、勞動效率(lv)明顯(xian)提高(gao),周邊眼(yan)爆破(po)(po)成(cheng)(cheng)(cheng)本(ben)降(jiang)(jiang)低(di)30%以(yi)上(shang),半眼(yan)痕保留(liu)率(lv)高(gao)達85%以(yi)上(shang)。pvc爆破(po)(po)聚(ju)(ju)能(neng)管(guan)(guan)(guan)主要應(ying)用(yong)于隧道、煤礦、鐵(tie)礦等(deng)需(xu)要進(jin)(jin)行(xing)光面爆破(po)(po)施(shi)工(gong)(gong)(gong)的(de)(de)工(gong)(gong)(gong)程。采用(yong)聚(ju)(ju)能(neng)管(guan)(guan)(guan)的(de)(de)光面爆破(po)(po)可(ke)減(jian)少(shao)(shao)鉆孔(kong),擴大孔(kong)距,減(jian)少(shao)(shao)導(dao)爆管(guan)(guan)(guan)用(yong)量(liang),減(jian)少(shao)(shao)超挖,減(jian)少(shao)(shao)噴漿,提高(gao)半孔(kong)率(lv),既(ji)節省了(le)成(cheng)(cheng)(cheng)本(ben)又提高(gao)了(le)施(shi)工(gong)(gong)(gong)效率(lv)。
在建造(zao)隧(sui)道的(de)時候(hou),人(ren)(ren)(ren)們(men)首先想到(dao)的(de)個方式,就是(shi)使(shi)用(yong)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)技(ji)(ji)術(shu)(shu)(shu),開山(shan)挖隧(sui)道修路,常(chang)(chang)(chang)(chang)規爆(bao)(bao)(bao)(bao)(bao)破(po)(po)技(ji)(ji)術(shu)(shu)(shu)需要使(shi)用(yong)數以噸計的(de)炸(zha),炸(zha)的(de)威力(li)十分巨大,但是(shi)在炸(zha)完之后,空氣(qi)中(zhong)全是(shi)煙(yan)塵,根本無(wu)法進入,另(ling)外常(chang)(chang)(chang)(chang)規爆(bao)(bao)(bao)(bao)(bao)破(po)(po)炸(zha)出來(lai)的(de)輪(lun)廓線凹(ao)凸不平,后期常(chang)(chang)(chang)(chang)常(chang)(chang)(chang)(chang)需要工(gong)人(ren)(ren)(ren)進一(yi)步修補輪(lun)廓線才(cai)能進行下(xia)一(yi)道工(gong)序(xu),耗(hao)(hao)時耗(hao)(hao)力(li),那么有沒有其(qi)他的(de)方式比常(chang)(chang)(chang)(chang)規爆(bao)(bao)(bao)(bao)(bao)破(po)(po)技(ji)(ji)術(shu)(shu)(shu)更好呢?2018年3月(yue),央視報道了(le)(le)一(yi)場(chang)隧(sui)道爆(bao)(bao)(bao)(bao)(bao)破(po)(po)對比實驗(yan),實驗(yan)采用(yong)兩(liang)種爆(bao)(bao)(bao)(bao)(bao)破(po)(po)技(ji)(ji)術(shu)(shu)(shu),滴喲中(zhong)是(shi)使(shi)用(yong)炸(zha)的(de)常(chang)(chang)(chang)(chang)規爆(bao)(bao)(bao)(bao)(bao)破(po)(po)技(ji)(ji)術(shu)(shu)(shu),第(di)二種則是(shi)國(guo)人(ren)(ren)(ren)新發明的(de)聚能水(shui)壓(ya)光面爆(bao)(bao)(bao)(bao)(bao)破(po)(po)技(ji)(ji)術(shu)(shu)(shu),隨(sui)著聲聲巨響(xiang),這場(chang)對比試驗(yan)的(de)結果超乎所有人(ren)(ren)(ren)的(de)意料(liao),聚能水(shui)壓(ya)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)技(ji)(ji)術(shu)(shu)(shu)的(de)爆(bao)(bao)(bao)(bao)(bao)炸(zha)效果更好,而(er)且(qie)爆(bao)(bao)(bao)(bao)(bao)破(po)(po)產生的(de)水(shui)霧能將(jiang)煙(yan)塵覆(fu)蓋,起(qi)到(dao)降塵的(de)作用(yong),這項爆(bao)(bao)(bao)(bao)(bao)破(po)(po)新方式得(de)到(dao)了(le)(le)觀眾們(men)的(de)認可。
預(yu)裂(lie)與光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)技(ji)術(shu)的(de)(de)歷(li)史與現(xian)狀:預(yu)裂(lie)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)是(shi)(shi)(shi)(shi)沿(yan)設(she)計開(kai)(kai)挖(wa)(wa)邊(bian)界布(bu)置密集(ji)炮(pao)孔,采(cai)取(qu)不耦合(he)裝(zhuang)藥(yao)(yao)或(huo)裝(zhuang)填低(di)威力(li)炸藥(yao)(yao),在(zai)(zai)主爆(bao)(bao)(bao)區(qu)(qu)之前起(qi)爆(bao)(bao)(bao),從而在(zai)(zai)爆(bao)(bao)(bao)區(qu)(qu)與保留區(qu)(qu)之間形(xing)成預(yu)裂(lie)縫(feng),以減弱主爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)對保留巖體的(de)(de)破(po)(po)(po)(po)(po)(po)(po)(po)壞并(bing)形(xing)成平整輪(lun)廓面(mian)的(de)(de)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)作(zuo)業。光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)是(shi)(shi)(shi)(shi)沿(yan)設(she)計開(kai)(kai)挖(wa)(wa)邊(bian)界布(bu)設(she)密集(ji)炮(pao)孔,采(cai)用不耦合(he)裝(zhuang)藥(yao)(yao)或(huo)裝(zhuang)填低(di)威力(li)炸藥(yao)(yao),在(zai)(zai)主爆(bao)(bao)(bao)區(qu)(qu)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)之后(hou)(hou)起(qi)爆(bao)(bao)(bao)的(de)(de)以形(xing)成平整的(de)(de)開(kai)(kai)挖(wa)(wa)輪(lun)廓面(mian)的(de)(de)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)作(zuo)業。爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)技(ji)術(shu)的(de)(de)發(fa)(fa)展是(shi)(shi)(shi)(shi)先出現(xian)光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po),然后(hou)(hou)衍生發(fa)(fa)展為預(yu)裂(lie)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)。聚(ju)能管國(guo)內歷(li)史與現(xian)狀,我(wo)國(guo)于1964~1965年(nian)在(zai)(zai)湖北陸水水電站施工中做過淺(qian)孔預(yu)裂(lie)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)試(shi)驗,1965年(nian)鐵道部門在(zai)(zai)成昆鐵路建設(she)中開(kai)(kai)始試(shi)驗光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po),1977年(nian)在(zai)(zai)西(xi)延(yan)線(xian)張家船工點,全長(chang)近200m的(de)(de)2000m2路塹(qian)(qian)邊(bian)坡(po)(po)全部采(cai)用光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po),爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)后(hou)(hou)邊(bian)坡(po)(po)平整穩定(ding),殘(can)留的(de)(de)半孔清(qing)晰可見,是(shi)(shi)(shi)(shi)鐵路建設(she)中采(cai)用路塹(qian)(qian)光(guang)(guang)(guang)面(mian)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)。
河源深孔爆破多向聚能管是由管體、前錐形定格帽、后定格堵構成,管體為塑性材料制成,呈管狀,管體外徑小于正常炮眼內徑,長度可隨爆破需要生產,管體兩端各有外螺紋,兩端外螺紋間有一縱向切縫,切縫間等距有加強筋,前錐形定格帽呈傘狀,傘形尖有一光孔,兩側直壁內徑有螺紋,與管體外徑前端螺紋配合,帽體外徑大于管體,后定格堵為一封蓋,外徑直徑大于管體外徑,與前錐形定格帽外徑一致,后定格堵內徑有螺紋,與管體外徑后端螺紋配合。專業深孔爆破多向聚能管可根據炮(pao)眼(yan)深度采用合適的(de)聚(ju)能管管體,不需其他(ta)工具幫助送入炮(pao)眼(yan),切縫方向準確,兩端的(de)前錐形定格帽和(he)后定格堵外(wai)徑與炮(pao)眼(yan)內(nei)徑一(yi)致,保證聚(ju)能管管體同心,定向準確。且(qie)利于(yu)工業(ye)化生產(chan),作業(ye)安(an)全