水壓光(guang)面(mian)爆(bao)破(po)(po)技(ji)術在(zai)隧(sui)(sui)道掘進(jin)(jin)作(zuo)業(ye)中的(de)實際應用。提升光(guang)面(mian)爆(bao)破(po)(po)水平(ping)、嚴抓隧(sui)(sui)道超(chao)挖管控進(jin)(jin)行(xing)了介紹。聚(ju)能(neng)水壓光(guang)面(mian)爆(bao)破(po)(po)工(gong)(gong)藝(yi)技(ji)術很(hen)成(cheng)熟、可操作(zuo)性很(hen)強、材(cai)料成(cheng)本很(hen)低、施工(gong)(gong)速度很(hen)快、節能(neng)環(huan)保效(xiao)果很(hen)顯著(zhu)、經濟效(xiao)益(yi)社會(hui)效(xiao)益(yi)很(hen)高(gao)。一是要提高(gao)對(dui)推(tui)廣該項(xiang)技(ji)術重要性和必(bi)然性的(de)認識(shi);二是要樹立(li)必(bi)須采取聚(ju)能(neng)水壓光(guang)面(mian)爆(bao)破(po)(po)的(de)意識(shi);三是要堅(jian)持(chi)培(pei)訓(xun)、示范、監督(du)“三位(wei)一體(ti)”;四是要制(zhi)定切實的(de)獎懲制(zhi)度;五是要建立(li)檢查(cha)監督(du)機制(zhi),持(chi)續促進(jin)(jin)該項(xiang)技(ji)術的(de)深(shen)入(ru)推(tui)廣。在(zai)隧(sui)(sui)道施工(gong)(gong)的(de)現場管理(li)、科技(ji)創新、人才(cai)培(pei)養、經濟效(xiao)益(yi)等(deng)方面(mian)的(de)不足。建議對(dui)施工(gong)(gong)一線基礎技(ji)術工(gong)(gong)作(zuo)扎實推(tui)進(jin)(jin);對(dui)新工(gong)(gong)藝(yi)、先進(jin)(jin)工(gong)(gong)法要深(shen)入(ru)學(xue)習(xi)鉆研;對(dui)消極懈怠、故步自封的(de)思想(xiang)要堅(jian)決抵制(zhi)。
專業爆破聚能管光面爆破技術優勢:相對于傳統爆破工藝,聚能管光面爆破比常規爆破具有以下優勢∶少打眼,少裝藥。節約周邊鉆孔量50%,總鉆孔進尺減少30%;節約炸藥10~20%,雷管30%。節約噴漿料15-20%。節省時間∶每循環鉆孔、裝藥、噴漿時間1.5-2.0小時。爆破聚能管廠家在(zai)安(an)全方面(mian)(mian)利(li)用水沙(sha)袋替代(dai)炮(pao)泥,以(yi)(yi)避免搗炮(pao)泥損(sun)毀電雷管導線,造成(cheng)(cheng)瞎(xia)炮(pao)。大(da)(da)大(da)(da)減(jian)少對圍巖擾動,光面(mian)(mian)效(xiao)果好,巖性條件(jian)差情(qing)況(kuang)下(xia)可以(yi)(yi)大(da)(da)大(da)(da)減(jian)少超(chao)挖量,控(kong)制(zhi)巷道成(cheng)(cheng)型;巖性完整無節理(li)情(qing)況(kuang)下(xia)眼(yan)痕率可以(yi)(yi)達到(dao)(dao)90%以(yi)(yi)上,巷道成(cheng)(cheng)型好,穩定性強。布孔方式優化(hua)成(cheng)(cheng)多排掏槽布孔,單次掘進深度可以(yi)(yi)優化(hua)提(ti)高10%到(dao)(dao)15%不等。由于炮(pao)孔數量大(da)(da)大(da)(da)減(jian)少可以(yi)(yi)考慮一(yi)起全斷面(mian)(mian)起爆,節省放(fang)炮(pao)時(shi)間(jian)。
聚(ju)(ju)(ju)能(neng)(neng)(neng)(neng)(neng)包(bao)由炸(zha)(zha)、形(xing)(xing)(xing)(xing)(xing)罩(zhao)(zhao)(zhao)、隔(ge)板(ban)、殼體、引(yin)信和(he)支架等(deng)部分(fen)組成,其(qi)作用及對聚(ju)(ju)(ju)能(neng)(neng)(neng)(neng)(neng)包(bao)威力的(de)(de)(de)(de)(de)(de)影響分(fen)述如(ru)(ru)下。1.炸(zha)(zha),炸(zha)(zha)是聚(ju)(ju)(ju)能(neng)(neng)(neng)(neng)(neng)管爆(bao)破(po)的(de)(de)(de)(de)(de)(de)能(neng)(neng)(neng)(neng)(neng)源,炸(zha)(zha)的(de)(de)(de)(de)(de)(de)爆(bao)壓(ya)越大(da),聚(ju)(ju)(ju)能(neng)(neng)(neng)(neng)(neng)彈威力越大(da);為得(de)到高(gao)(gao)爆(bao)壓(ya),需(xu)高(gao)(gao)爆(bao)速、高(gao)(gao)密度(du)的(de)(de)(de)(de)(de)(de)炸(zha)(zha)。常用炸(zha)(zha)有(you)(you)梯恩梯、8321炸(zha)(zha)等(deng),裝方法(fa)有(you)(you)熔鑄(zhu),塑裝和(he)壓(ya)裝多種。2.型罩(zhao)(zhao)(zhao),型罩(zhao)(zhao)(zhao)的(de)(de)(de)(de)(de)(de)作用是把炸(zha)(zha)的(de)(de)(de)(de)(de)(de)爆(bao)炸(zha)(zha)能(neng)(neng)(neng)(neng)(neng)轉化成罩(zhao)(zhao)(zhao)體材(cai)(cai)(cai)料的(de)(de)(de)(de)(de)(de)射(she)流(liu)動(dong)能(neng)(neng)(neng)(neng)(neng),從而提高(gao)(gao)其(qi)穿透和(he)切割(ge)能(neng)(neng)(neng)(neng)(neng)力。型罩(zhao)(zhao)(zhao)的(de)(de)(de)(de)(de)(de)材(cai)(cai)(cai)料必須(xu)滿足四點(dian)要求,即可壓(ya)縮性小、密度(du)高(gao)(gao)、塑性和(he)延展性好,在形(xing)(xing)(xing)(xing)(xing)成射(she)流(liu)中(zhong)不汽化。大(da)量試驗證明,用紫銅制作型罩(zhao)(zhao)(zhao)效果好,其(qi)次(ci)為鑄(zhu)鐵、鋼和(he)陶(tao)瓷(ci)。型罩(zhao)(zhao)(zhao)的(de)(de)(de)(de)(de)(de)形(xing)(xing)(xing)(xing)(xing)狀多種多樣,主要有(you)(you)軸(zhou)對稱型,如(ru)(ru)圓錐形(xing)(xing)(xing)(xing)(xing)、半球(qiu)形(xing)(xing)(xing)(xing)(xing)、拋(pao)物線形(xing)(xing)(xing)(xing)(xing)和(he)喇叭形(xing)(xing)(xing)(xing)(xing)等(deng);面(mian)(mian)對稱型,常見的(de)(de)(de)(de)(de)(de)有(you)(you)用于切割(ge)屬(shu)板(ban)材(cai)(cai)(cai)的(de)(de)(de)(de)(de)(de)直線形(xing)(xing)(xing)(xing)(xing)和(he)用于切割(ge)管材(cai)(cai)(cai)的(de)(de)(de)(de)(de)(de)環形(xing)(xing)(xing)(xing)(xing)聚(ju)(ju)(ju)能(neng)(neng)(neng)(neng)(neng)罩(zhao)(zhao)(zhao)兩種;中(zhong)心對稱型,這種球(qiu)形(xing)(xing)(xing)(xing)(xing)聚(ju)(ju)(ju)能(neng)(neng)(neng)(neng)(neng)包(bao),中(zhong)心有(you)(you)球(qiu)形(xing)(xing)(xing)(xing)(xing)空腔(qiang)和(he)球(qiu)形(xing)(xing)(xing)(xing)(xing)罩(zhao)(zhao)(zhao),球(qiu)形(xing)(xing)(xing)(xing)(xing)罩(zhao)(zhao)(zhao)外敷(fu)設炸(zha)(zha),若能(neng)(neng)(neng)(neng)(neng)在瞬間(jian)同(tong)時起爆(bao),可在空腔(qiang)中(zhong)心點(dian)獲得(de)極大(da)的(de)(de)(de)(de)(de)(de)能(neng)(neng)(neng)(neng)(neng)量集(ji)中(zhong)。在工(gong)程中(zhong)常用的(de)(de)(de)(de)(de)(de)是軸(zhou)對稱型和(he)面(mian)(mian)對稱型兩類型罩(zhao)(zhao)(zhao)。
水壓(ya)(ya)(ya)光(guang)面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)技(ji)(ji)術基礎上發展起來的一(yi)項新技(ji)(ji)術,其掏槽(cao)眼(yan)、輔助眼(yan)裝(zhuang)藥(yao)結構和(he)(he)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)方式與水壓(ya)(ya)(ya)光(guang)面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)相同(tong),但(dan)在周(zhou)邊(bian)(bian)(bian)眼(yan)中安(an)裝(zhuang)專用(yong)線性(xing)聚(ju)能(neng)(neng)藥(yao)管(guan)替代常(chang)規爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)藥(yao)卷和(he)(he)傳爆(bao)(bao)(bao)(bao)線,利用(yong)線性(xing)聚(ju)能(neng)(neng)藥(yao)管(guan)產生的粒子射流動(dong)能(neng)(neng)、高壓(ya)(ya)(ya)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)氣體應(ying)力及(ji)“氣楔”作用(yong),形成平整圓(yuan)順的開(kai)挖輪廓面(mian),對控(kong)制超欠挖具有良好效(xiao)果,有效(xiao)提(ti)升了隧道施工質量、進度和(he)(he)經濟效(xiao)益。水壓(ya)(ya)(ya)光(guang)面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)較水壓(ya)(ya)(ya)光(guang)面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po),在周(zhou)邊(bian)(bian)(bian)眼(yan)單循(xun)環火(huo)工品使用(yong)量上節(jie)約費(fei)用(yong)8.3%,周(zhou)邊(bian)(bian)(bian)眼(yan)鉆孔數量從(cong)39個下降為23個費(fei)用(yong)節(jie)約41%,混凝土噴(pen)射每(mei)延(yan)米節(jie)約1.37立(li)方米。聚(ju)能(neng)(neng)水壓(ya)(ya)(ya)光(guang)面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)比(bi)水壓(ya)(ya)(ya)光(guang)面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)每(mei)循(xun)環節(jie)約費(fei)用(yong)258.4元(yuan),即(ji)每(mei)延(yan)米節(jie)約76較元(yuan),節(jie)約費(fei)用(yong)比(bi)例達32%。此外,聚(ju)能(neng)(neng)水壓(ya)(ya)(ya)光(guang)面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)(po)能(neng)(neng)有效(xiao)降低隧道內(nei)石渣(zha)塊度和(he)(he)粉塵含量,還可(ke)使通風(feng)時間(jian)有效(xiao)縮短33%。
施(shi)工因其復雜性、專業(ye)性、危險性,稍有不(bu)(bu)慎(shen),將(jiang)對人民的(de)(de)生(sheng)(sheng)命財產安全造成(cheng)不(bu)(bu)可(ke)估量的(de)(de)損(sun)失,例如廣東宏大(da)寧夏(xia)“10.16”、山(shan)東保利“5.20”等重大(da)安全事故。因此(ci),相較其他行業(ye),國家(jia)出臺的(de)(de)相關(guan)(guan)法(fa)律法(fa)規(gui)多、專、嚴(yan),從(cong)爆(bao)(bao)(bao)破(po)材料(炸藥、雷(lei)管(guan)、導(dao)爆(bao)(bao)(bao)索?管(guan)?及(ji)(ji)相關(guan)(guan)材料)的(de)(de)生(sheng)(sheng)產、購進、運輸(shu)、儲存、發放、布(bu)網、連接、起爆(bao)(bao)(bao)、排爆(bao)(bao)(bao)等一系列程序均(jun)有嚴(yan)格的(de)(de)法(fa)律規(gui)定和(he)(he)科(ke)學的(de)(de)操作規(gui)程,并且(qie)相關(guan)(guan)從(cong)業(ye)單位和(he)(he)人員均(jun)應(ying)(ying)取得相應(ying)(ying)資質(zhi)(zhi)。做為各類爆(bao)(bao)(bao)破(po)中(zhong)不(bu)(bu)可(ke)或缺(que)的(de)(de)一種導(dao)線,特別不(bu)(bu)同于一般的(de)(de)電(dian)(dian)線電(dian)(dian)纜(lan),其質(zhi)(zhi)量要(yao)求及(ji)(ji)各項技(ji)術參數也與普通(tong)電(dian)(dian)線電(dian)(dian)纜(lan)不(bu)(bu)同。部分家(jia)庭作坊式的(de)(de)電(dian)(dian)線電(dian)(dian)纜(lan)廠無科(ke)學的(de)(de)生(sheng)(sheng)產工藝、無基本的(de)(de)檢測設(she)備、無專業(ye)的(de)(de)技(ji)術人員,甚(shen)至不(bu)(bu)知道(dao)爆(bao)(bao)(bao)破(po)線的(de)(de)質(zhi)(zhi)量要(yao)求和(he)(he)技(ji)術參數,更不(bu)(bu)可(ke)能制(zhi)訂自己的(de)(de)企業(ye)標準,僅憑簡陋的(de)(de)設(she)備、以粗糙的(de)(de)模仿進行生(sheng)(sheng)產經營活(huo)動,致使市場充斥著(zhu)假冒偽劣產品,導(dao)致爆(bao)(bao)(bao)破(po)中(zhong)提前或延遲起爆(bao)(bao)(bao)、盲炮(pao)增加且(qie)強制(zhi)排爆(bao)(bao)(bao)困難,給(gei)人身安全和(he)(he)財產以及(ji)(ji)正(zheng)常的(de)(de)生(sheng)(sheng)產經營活(huo)動造成(cheng)了不(bu)(bu)可(ke)估量的(de)(de)損(sun)失。