水壓(ya)(ya)光面爆(bao)破(po)(po)技術,是在(zai)水壓(ya)(ya)光面爆(bao)破(po)(po)技術基礎上發展起(qi)來的(de)(de)一項新技術,其掏槽(cao)眼、輔助眼裝(zhuang)(zhuang)藥結構和爆(bao)破(po)(po)方(fang)式與(yu)水壓(ya)(ya)光面爆(bao)破(po)(po)相同,但在(zai)周邊(bian)眼中安裝(zhuang)(zhuang)專用(yong)聚(ju)能(neng)(neng)(neng)管(guan)裝(zhuang)(zhuang)置替代常規爆(bao)破(po)(po)藥卷和傳爆(bao)線,利(li)用(yong)聚(ju)能(neng)(neng)(neng)管(guan)產生(sheng)的(de)(de)粒子射(she)流動(dong)能(neng)(neng)(neng)、高(gao)壓(ya)(ya)爆(bao)破(po)(po)氣(qi)體應力(li)及“氣(qi)楔(xie)”作用(yong),形成(cheng)平(ping)(ping)整圓順(shun)的(de)(de)開挖輪廓面,對控制超欠挖具有良好效(xiao)(xiao)果,有效(xiao)(xiao)提升了隧道施工(gong)質(zhi)量(liang)、進度和經濟效(xiao)(xiao)益。科學合(he)理地(di)利(li)用(yong)能(neng)(neng)(neng)源,提高(gao)能(neng)(neng)(neng)源利(li)用(yong)效(xiao)(xiao)率,對節(jie)能(neng)(neng)(neng)減排也十分重要(yao)。利(li)用(yong)聚(ju)能(neng)(neng)(neng)管(guan)兩(liang)端(duan)的(de)(de)水平(ping)(ping)開出的(de)(de)聚(ju)能(neng)(neng)(neng)槽(cao)產生(sheng)的(de)(de)聚(ju)能(neng)(neng)(neng)射(she)流效(xiao)(xiao)應對巖(yan)石進行破(po)(po)碎。據(ju)專家測算,由(you)于聚(ju)能(neng)(neng)(neng)管(guan)兩(liang)端(duan)聚(ju)能(neng)(neng)(neng)槽(cao)產生(sheng)的(de)(de)聚(ju)能(neng)(neng)(neng)切割效(xiao)(xiao)應,其能(neng)(neng)(neng)效(xiao)(xiao)比提升一個量(liang)級(ji)。
施工(gong)因(yin)其復雜性、專(zhuan)業(ye)性、危險性,稍有(you)不(bu)(bu)(bu)慎,將對人民的(de)生(sheng)命財產安全(quan)造(zao)成不(bu)(bu)(bu)可(ke)估量(liang)的(de)損(sun)失,例如廣東宏(hong)大(da)寧夏(xia)“10.16”、山(shan)東保利“5.20”等重大(da)安全(quan)事故(gu)。因(yin)此,相較其他(ta)行(xing)業(ye),國家出臺(tai)的(de)相關(guan)法律法規(gui)多、專(zhuan)、嚴(yan),從爆(bao)(bao)(bao)破(po)材料(liao)(炸(zha)藥、雷管(guan)、導(dao)(dao)爆(bao)(bao)(bao)索?管(guan)?及相關(guan)材料(liao))的(de)生(sheng)產、購進(jin)、運輸、儲(chu)存(cun)、發放、布(bu)網、連接(jie)、起爆(bao)(bao)(bao)、排爆(bao)(bao)(bao)等一系(xi)列程序均(jun)有(you)嚴(yan)格的(de)法律規(gui)定和(he)科學的(de)操(cao)作規(gui)程,并且相關(guan)從業(ye)單位和(he)人員均(jun)應取得相應資質(zhi)。做(zuo)為各類爆(bao)(bao)(bao)破(po)中不(bu)(bu)(bu)可(ke)或缺的(de)一種導(dao)(dao)線(xian),特別不(bu)(bu)(bu)同于一般的(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan),其質(zhi)量(liang)要求(qiu)及各項技(ji)術(shu)(shu)(shu)參數也(ye)與普通電(dian)(dian)線(xian)電(dian)(dian)纜(lan)不(bu)(bu)(bu)同。部(bu)分(fen)家庭作坊式(shi)的(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)廠無(wu)科學的(de)生(sheng)產工(gong)藝、無(wu)基本的(de)檢(jian)測設(she)備、無(wu)專(zhuan)業(ye)的(de)技(ji)術(shu)(shu)(shu)人員,甚至不(bu)(bu)(bu)知道爆(bao)(bao)(bao)破(po)線(xian)的(de)質(zhi)量(liang)要求(qiu)和(he)技(ji)術(shu)(shu)(shu)參數,更不(bu)(bu)(bu)可(ke)能制訂自己的(de)企業(ye)標準,僅(jin)憑(ping)簡陋的(de)設(she)備、以粗糙的(de)模仿進(jin)行(xing)生(sheng)產經(jing)營活動,致(zhi)使市場充(chong)斥著假冒偽(wei)劣(lie)產品,導(dao)(dao)致(zhi)爆(bao)(bao)(bao)破(po)中提前或延遲起爆(bao)(bao)(bao)、盲炮增(zeng)加且強制排爆(bao)(bao)(bao)困難,給人身安全(quan)和(he)財產以及正常的(de)生(sheng)產經(jing)營活動造(zao)成了不(bu)(bu)(bu)可(ke)估量(liang)的(de)損(sun)失。
各種爆破、爆破器材銷毀以及爆破器材意外爆炸時,爆破源與人員和其他保護對象之間的安全距離稱為爆破安全距離。爆破安全距離應取各種爆破效應(地震、沖擊波、飛石、有毒氣體等)分別核定的大值。專業o型聚能管爆破時,必然產生爆破地震、空氣沖擊波、碎石飛散及有害氣體,因此,爆破設計時必須確定爆破危害范圍,并確定爆點到附近人員、設備、建筑物及井巷等的安全,這一段距離就稱為爆破安全距離。專業o型聚能管如何(he)控制好(hao)這段距(ju)(ju)離(li)(li)就(jiu)顯(xian)的尤為(wei)重要。為(wei)保(bao)證(zheng)爆(bao)(bao)破(po)安(an)全(quan),爆(bao)(bao)破(po)地(di)(di)點與人員(yuan)或(huo)其他應(ying)(ying)保(bao)護(hu)對象之(zhi)間(jian)必須(xu)保(bao)持短的相隔長(chang)度。爆(bao)(bao)破(po)有害效應(ying)(ying)隨(sui)距(ju)(ju)離(li)(li)的增(zeng)加有規(gui)(gui)律地(di)(di)衰減(jian),用距(ju)(ju)離(li)(li)作為(wei)安(an)全(quan)尺度可限(xian)定爆(bao)(bao)破(po)有害效應(ying)(ying)在允許限(xian)度之(zhi)內(nei)。中國《爆(bao)(bao)破(po)安(an)全(quan)規(gui)(gui)程》規(gui)(gui)定了爆(bao)(bao)破(po)地(di)(di)震(zhen)安(an)全(quan)距(ju)(ju)離(li)(li),個別飛散物安(an)全(quan)距(ju)(ju)離(li)(li),以及爆(bao)(bao)炸沖(chong)擊波的安(an)全(quan)距(ju)(ju)離(li)(li)。
采(cai)用一(yi)種抗靜電阻燃的特種塑料(liao)管(guan)、異(yi)形雙槽(cao)(cao)聚能(neng)管(guan),根(gen)據炮眼深度(du)可(ke)長可(ke)短(duan)。是(shi)兩個相(xiang)似半壁管(guan)組成(cheng),半壁管(guan)中(zhong)央有個凹(ao)進去的槽(cao)(cao)叫(jiao)做'聚能(neng)槽(cao)(cao)",使用聚能(neng)管(guan)光面爆(bao)(bao)(bao)(bao)破(po)成(cheng)型效(xiao)果好,開挖輪廓線平順整齊(qi),圍巖擾動減(jian)(jian)少(shao)(shao)、超欠挖明顯(xian)(xian)改(gai)善(shan),有利于支護工(gong)序施(shi)工(gong),同時(shi)混凝(ning)土回填成(cheng)本(ben)大為降低(di)。鑿孔(kong)(kong)率(lv)(lv)減(jian)(jian)少(shao)(shao)30%,大大降低(di)了爆(bao)(bao)(bao)(bao)破(po)作(zuo)業工(gong)班(ban)的勞動量(liang):鉆孔(kong)(kong)縮短(duan)30分(fen)鐘、少(shao)(shao)打眼、出渣量(liang)減(jian)(jian)少(shao)(shao),降低(di)了材(cai)料(liao)成(cheng)本(ben)、減(jian)(jian)少(shao)(shao)工(gong)時(shi)消耗、勞動效(xiao)率(lv)(lv)明顯(xian)(xian)提高(gao)(gao),周(zhou)邊(bian)眼爆(bao)(bao)(bao)(bao)破(po)成(cheng)本(ben)降低(di)30%以(yi)上(shang),半眼痕保留率(lv)(lv)高(gao)(gao)達85%以(yi)上(shang)。pvc爆(bao)(bao)(bao)(bao)破(po)聚能(neng)管(guan)主(zhu)要應用于隧道、煤(mei)礦(kuang)、鐵礦(kuang)等需要進行光面爆(bao)(bao)(bao)(bao)破(po)施(shi)工(gong)的工(gong)程。采(cai)用聚能(neng)管(guan)的光面爆(bao)(bao)(bao)(bao)破(po)可(ke)減(jian)(jian)少(shao)(shao)鉆孔(kong)(kong),擴大孔(kong)(kong)距,減(jian)(jian)少(shao)(shao)導(dao)爆(bao)(bao)(bao)(bao)管(guan)用量(liang),減(jian)(jian)少(shao)(shao)超挖,減(jian)(jian)少(shao)(shao)噴(pen)漿,提高(gao)(gao)半孔(kong)(kong)率(lv)(lv),既節省(sheng)了成(cheng)本(ben)又提高(gao)(gao)了施(shi)工(gong)效(xiao)率(lv)(lv)。
水壓光(guang)面(mian)爆(bao)破技(ji)術(shu)在隧道掘進(jin)作(zuo)業中的(de)實際應用。提(ti)升光(guang)面(mian)爆(bao)破水平、嚴抓隧道超(chao)挖(wa)管控進(jin)行了介(jie)紹。聚能水壓光(guang)面(mian)爆(bao)破工(gong)(gong)藝技(ji)術(shu)很(hen)成(cheng)熟、可操(cao)作(zuo)性很(hen)強(qiang)、材(cai)料成(cheng)本(ben)很(hen)低(di)、施工(gong)(gong)速度(du)很(hen)快、節能環(huan)保效(xiao)果很(hen)顯著、經濟效(xiao)益社會效(xiao)益很(hen)高。一(yi)是要提(ti)高對(dui)推(tui)廣該(gai)(gai)項(xiang)技(ji)術(shu)重要性和必(bi)然性的(de)認識(shi);二是要樹立必(bi)須采(cai)取聚能水壓光(guang)面(mian)爆(bao)破的(de)意(yi)識(shi);三(san)是要堅持(chi)培訓、示范、監(jian)(jian)督“三(san)位一(yi)體”;四(si)是要制定(ding)切實的(de)獎懲制度(du);五是要建立檢查監(jian)(jian)督機(ji)制,持(chi)續(xu)促進(jin)該(gai)(gai)項(xiang)技(ji)術(shu)的(de)深(shen)入推(tui)廣。在隧道施工(gong)(gong)的(de)現場(chang)管理、科技(ji)創新(xin)、人(ren)才培養、經濟效(xiao)益等(deng)方面(mian)的(de)不(bu)足。建議對(dui)施工(gong)(gong)一(yi)線(xian)基礎技(ji)術(shu)工(gong)(gong)作(zuo)扎實推(tui)進(jin);對(dui)新(xin)工(gong)(gong)藝、先進(jin)工(gong)(gong)法要深(shen)入學習鉆研;對(dui)消(xiao)極懈怠、故(gu)步自封的(de)思想要堅決抵制。
我國于1983年制定了(le)(le)《水(shui)工(gong)(gong)(gong)(gong)建筑物巖行基礎開挖工(gong)(gong)(gong)(gong)程(cheng)施(shi)工(gong)(gong)(gong)(gong)技(ji)術規(gui)范》(sD 121l一(yi)1983)。自此(ci),在(zai)(zai)水(shui)利水(shui)電建設(she)(she)中預裂(lie)爆破(po)(po)與(yu)光(guang)(guang)面(mian)(mian)爆破(po)(po)已成(cheng)為(wei)必須(xu)進行的(de)保護邊(bian)(bian)坡(po)(po)(po)質量(liang)的(de)爆破(po)(po)開挖技(ji)術措施(shi)。此(ci)后在(zai)(zai)此(ci)基礎上修訂的(de)《水(shui)工(gong)(gong)(gong)(gong)建筑物巖石基礎開挖工(gong)(gong)(gong)(gong)程(cheng)施(shi)工(gong)(gong)(gong)(gong)技(ji)術規(gui)范》(SL 47一(yi)1994)以及(ji)在(zai)(zai)《水(shui)電水(shui)利爆破(po)(po)工(gong)(gong)(gong)(gong)程(cheng)施(shi)工(gong)(gong)(gong)(gong)技(ji)術規(gui)范》(DL/T 5135—2001)和(he)《水(shui)工(gong)(gong)(gong)(gong)建筑物巖石基礎開挖工(gong)(gong)(gong)(gong)程(cheng)施(shi)工(gong)(gong)(gong)(gong)技(ji)術規(gui)范》(DL/T 5389~2007)中預裂(lie)爆破(po)(po)與(yu)光(guang)(guang)面(mian)(mian)爆破(po)(po)均(jun)被編(bian)入并有(you)所改進,DL/T 5135—2001正在(zai)(zai)修編(bian)為(wei)DL/T 5135—2012。鐵道部也不僅(jin)規(gui)定了(le)(le)凡是Ⅲ級以上的(de)巖石邊(bian)(bian)坡(po)(po)(po),設(she)(she)計(ji)邊(bian)(bian)坡(po)(po)(po)坡(po)(po)(po)度為(wei)1:0.1~1:0.75,在(zai)(zai)邊(bian)(bian)坡(po)(po)(po)部位的(de)爆破(po)(po)設(she)(she)計(ji)和(he)施(shi)工(gong)(gong)(gong)(gong)都應采用(yong)光(guang)(guang)面(mian)(mian)爆破(po)(po)或預裂(lie)爆破(po)(po),并闡述(shu)了(le)(le)光(guang)(guang)面(mian)(mian)(預裂(lie))爆破(po)(po)施(shi)工(gong)(gong)(gong)(gong)技(ji)術設(she)(she)計(ji)的(de)原則和(he)參數、安全措施(shi),而(er)且還明確(que)了(le)(le)路塹邊(bian)(bian)坡(po)(po)(po)光(guang)(guang)面(mian)(mian)(預裂(lie))爆破(po)(po)項目(mu)質量(liang)驗收檢測數量(liang)和(he)檢測方法。無疑該(gai)規(gui)程(cheng)的(de)實(shi)施(shi),有(you)力(li)地推(tui)動和(he)促進了(le)(le)光(guang)(guang)面(mian)(mian)(預裂(lie))爆破(po)(po)技(ji)術在(zai)(zai)鐵路建設(she)(she)中的(de)應用(yong)與(yu)發(fa)展。