使用單(dan)位(wei)或經(jing)銷商在(zai)日常采(cai)購(gou)(gou)中使用搜(sou)(sou)索(suo)引(yin)(yin)擎(qing)搜(sou)(sou)索(suo)生產(chan)(chan)廠商并購(gou)(gou)買產(chan)(chan)品(pin)已經(jing)成(cheng)為(wei)很多企(qi)業(ye)和經(jing)銷商的(de)主要采(cai)購(gou)(gou)手段。根據我們從事(shi)網(wang)(wang)絡營銷的(de)經(jing)歷(li),總結出(chu)以下幾點(dian)注(zhu)意事(shi)項,希望能對(dui)(dui)采(cai)購(gou)(gou)的(de)企(qi)業(ye)起到一些幫助(zhu)作(zuo)用。1、采(cai)購(gou)(gou)的(de)產(chan)(chan)品(pin)型號規格、質量標準、技術(shu)參數應與采(cai)購(gou)(gou)計(ji)劃相符。2、采(cai)購(gou)(gou)產(chan)(chan)品(pin)時,就是(shi)通過搜(sou)(sou)索(suo)引(yin)(yin)擎(qing)搜(sou)(sou)索(suo)自己需求的(de)產(chan)(chan)品(pin),找出(chu)生產(chan)(chan)和銷售該(gai)產(chan)(chan)品(pin)的(de)企(qi)業(ye),然(ran)后查(cha)看(kan)該(gai)生產(chan)(chan)企(qi)業(ye)網(wang)(wang)站是(shi)否經(jing)過其所(suo)在(zai)省份工信廳備(bei)案,并登錄查(cha)驗。3、查(cha)看(kan)該(gai)生產(chan)(chan)企(qi)業(ye)網(wang)(wang)站欄目配(pei)置、欄目內(nei)容是(shi)否足夠專業(ye),如大量出(chu)現與采(cai)購(gou)(gou)產(chan)(chan)品(pin)無關、雜亂無章的(de),聯系地(di)址標明xxx工業(ye)區、示范園(yuan)而(er)沒有路牌號的(de),只有手機(ji)號碼而(er)沒有固定電話、傳(chuan)真地(di)的(de),足可(ke)認定該(gai)生產(chan)(chan)企(qi)業(ye)為(wei)非正(zheng)規的(de)家庭作(zuo)坊,不宜作(zuo)為(wei)采(cai)購(gou)(gou)對(dui)(dui)象。
水(shui)(shui)(shui)(shui)壓光(guang)(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)破(po)(po)(po)技(ji)術基礎上發展(zhan)起來的一項新技(ji)術,其掏槽眼、輔助眼裝藥結構和(he)爆(bao)(bao)破(po)(po)(po)方式與水(shui)(shui)(shui)(shui)壓光(guang)(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)破(po)(po)(po)相同,但在(zai)(zai)周邊(bian)眼中安裝專用(yong)(yong)線(xian)性聚能(neng)藥管替代常規爆(bao)(bao)破(po)(po)(po)藥卷(juan)和(he)傳爆(bao)(bao)線(xian),利用(yong)(yong)線(xian)性聚能(neng)藥管產生的粒子射流動能(neng)、高壓爆(bao)(bao)破(po)(po)(po)氣(qi)(qi)體應力及“氣(qi)(qi)楔”作用(yong)(yong),形成平整(zheng)圓順的開挖輪廓面(mian)(mian)(mian)(mian),對控制(zhi)超(chao)欠(qian)挖具(ju)有(you)良好(hao)效(xiao)(xiao)果,有(you)效(xiao)(xiao)提升了隧(sui)道施工質量(liang)、進度和(he)經濟效(xiao)(xiao)益。水(shui)(shui)(shui)(shui)壓光(guang)(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)破(po)(po)(po)較水(shui)(shui)(shui)(shui)壓光(guang)(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)破(po)(po)(po),在(zai)(zai)周邊(bian)眼單循環火工品(pin)使(shi)用(yong)(yong)量(liang)上節(jie)約(yue)費用(yong)(yong)8.3%,周邊(bian)眼鉆孔數量(liang)從39個下降為23個費用(yong)(yong)節(jie)約(yue)41%,混凝土噴射每(mei)延米(mi)節(jie)約(yue)1.37立方米(mi)。聚能(neng)水(shui)(shui)(shui)(shui)壓光(guang)(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)破(po)(po)(po)比水(shui)(shui)(shui)(shui)壓光(guang)(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)破(po)(po)(po)每(mei)循環節(jie)約(yue)費用(yong)(yong)258.4元,即每(mei)延米(mi)節(jie)約(yue)76較元,節(jie)約(yue)費用(yong)(yong)比例達32%。此(ci)外,聚能(neng)水(shui)(shui)(shui)(shui)壓光(guang)(guang)面(mian)(mian)(mian)(mian)爆(bao)(bao)破(po)(po)(po)能(neng)有(you)效(xiao)(xiao)降低隧(sui)道內石渣塊度和(he)粉塵含(han)量(liang),還可使(shi)通(tong)風時間有(you)效(xiao)(xiao)縮短33%。
水(shui)壓(ya)光面(mian)(mian)爆(bao)破技(ji)術在隧(sui)道掘進(jin)作業(ye)中的(de)(de)實(shi)際應用(yong)。提升光面(mian)(mian)爆(bao)破水(shui)平(ping)、嚴(yan)抓隧(sui)道超(chao)挖管(guan)控進(jin)行了介紹。聚(ju)能水(shui)壓(ya)光面(mian)(mian)爆(bao)破工(gong)(gong)(gong)藝技(ji)術很(hen)(hen)成熟、可操(cao)作性很(hen)(hen)強、材(cai)料成本(ben)很(hen)(hen)低、施(shi)工(gong)(gong)(gong)速度(du)很(hen)(hen)快(kuai)、節能環保(bao)效(xiao)果很(hen)(hen)顯著(zhu)、經(jing)濟(ji)效(xiao)益(yi)社會效(xiao)益(yi)很(hen)(hen)高。一是(shi)要(yao)提高對推廣該(gai)項技(ji)術重要(yao)性和必然性的(de)(de)認識;二是(shi)要(yao)樹立必須(xu)采取聚(ju)能水(shui)壓(ya)光面(mian)(mian)爆(bao)破的(de)(de)意識;三是(shi)要(yao)堅持培訓、示范、監督(du)“三位一體”;四是(shi)要(yao)制定切(qie)實(shi)的(de)(de)獎懲制度(du);五是(shi)要(yao)建(jian)立檢查監督(du)機(ji)制,持續促進(jin)該(gai)項技(ji)術的(de)(de)深(shen)入推廣。在隧(sui)道施(shi)工(gong)(gong)(gong)的(de)(de)現(xian)場管(guan)理(li)、科技(ji)創新、人才培養、經(jing)濟(ji)效(xiao)益(yi)等方面(mian)(mian)的(de)(de)不足。建(jian)議對施(shi)工(gong)(gong)(gong)一線基礎技(ji)術工(gong)(gong)(gong)作扎實(shi)推進(jin);對新工(gong)(gong)(gong)藝、先進(jin)工(gong)(gong)(gong)法要(yao)深(shen)入學習鉆研;對消極懈(xie)怠、故(gu)步自(zi)封的(de)(de)思想要(yao)堅決抵(di)制。
專業深孔爆破多向聚能管預裂與光面爆破技術的歷史與現狀:預裂爆破是沿設計開挖邊界布置密集炮孔,采取不耦合裝藥或裝填低威力炸藥,在主爆區之前起爆,從而在爆區與保留區之間形成預裂縫,以減弱主爆破對保留巖體的破壞并形成平整輪廓面的爆破作業。深孔爆破多向聚能管公司光(guang)(guang)面(mian)(mian)爆(bao)破(po)(po)(po)是(shi)沿設計(ji)開(kai)挖(wa)邊界(jie)布設密(mi)集(ji)炮孔(kong),采(cai)用(yong)不耦合裝藥或裝填低威力炸藥,在主爆(bao)區爆(bao)破(po)(po)(po)之后(hou)起(qi)爆(bao)的以形成(cheng)平(ping)整的開(kai)挖(wa)輪廓面(mian)(mian)的爆(bao)破(po)(po)(po)作業。爆(bao)破(po)(po)(po)技(ji)術的發(fa)展(zhan)是(shi)先出現光(guang)(guang)面(mian)(mian)爆(bao)破(po)(po)(po),然后(hou)衍(yan)生發(fa)展(zhan)為(wei)預裂爆(bao)破(po)(po)(po)。聚能管(guan)國(guo)內(nei)歷史與現狀,我國(guo)于1964~1965年在湖北陸水水電站(zhan)施工(gong)中做過淺孔(kong)預裂爆(bao)破(po)(po)(po)試驗(yan),1965年鐵道(dao)部(bu)門在成(cheng)昆鐵路建(jian)(jian)設中開(kai)始試驗(yan)光(guang)(guang)面(mian)(mian)爆(bao)破(po)(po)(po),1977年在西延線(xian)張家船(chuan)工(gong)點,全(quan)(quan)長近(jin)200m的2000m2路塹邊坡全(quan)(quan)部(bu)采(cai)用(yong)光(guang)(guang)面(mian)(mian)爆(bao)破(po)(po)(po),爆(bao)破(po)(po)(po)后(hou)邊坡平(ping)整穩(wen)定,殘留(liu)的半孔(kong)清晰可見(jian),是(shi)鐵路建(jian)(jian)設中采(cai)用(yong)路塹光(guang)(guang)面(mian)(mian)爆(bao)破(po)(po)(po)。
光(guang)(guang)面(mian)(mian)爆(bao)(bao)破(po)技術(shu)優(you)(you)勢:相對于(yu)傳統爆(bao)(bao)破(po)工藝,聚(ju)能管(guan)光(guang)(guang)面(mian)(mian)爆(bao)(bao)破(po)比常規爆(bao)(bao)破(po)具(ju)有(you)以(yi)下(xia)(xia)優(you)(you)勢∶少(shao)打(da)眼(yan),少(shao)裝藥。節約(yue)周邊鉆孔(kong)量(liang)(liang)50%,總(zong)鉆孔(kong)進尺減少(shao)30%;節約(yue)炸藥10~20%,雷管(guan)30%。節約(yue)噴(pen)漿(jiang)料15-20%。節省時(shi)(shi)間∶每循環鉆孔(kong)、裝藥、噴(pen)漿(jiang)時(shi)(shi)間1.5-2.0小時(shi)(shi)。在安(an)全方(fang)(fang)面(mian)(mian)利用水沙袋替代炮(pao)泥,以(yi)避免搗炮(pao)泥損毀電雷管(guan)導線,造成(cheng)瞎炮(pao)。大(da)大(da)減少(shao)對圍巖擾動,光(guang)(guang)面(mian)(mian)效果好,巖性(xing)(xing)條件差情(qing)況(kuang)下(xia)(xia)可(ke)以(yi)大(da)大(da)減少(shao)超挖(wa)量(liang)(liang),控制巷(xiang)道成(cheng)型(xing);巖性(xing)(xing)完整(zheng)無節理(li)情(qing)況(kuang)下(xia)(xia)眼(yan)痕率可(ke)以(yi)達到(dao)90%以(yi)上,巷(xiang)道成(cheng)型(xing)好,穩定性(xing)(xing)強。布孔(kong)方(fang)(fang)式優(you)(you)化(hua)成(cheng)多排掏槽布孔(kong),單(dan)次掘進深度可(ke)以(yi)優(you)(you)化(hua)提高(gao)10%到(dao)15%不等。由于(yu)炮(pao)孔(kong)數(shu)量(liang)(liang)大(da)大(da)減少(shao)可(ke)以(yi)考慮一起(qi)全斷面(mian)(mian)起(qi)爆(bao)(bao),節省放(fang)炮(pao)時(shi)(shi)間。
施(shi)工工藝嚴(yan)格遵循六字方(fang)針(掛滿、貼(tie)緊(jin)、對準):(1)要保(bao)證(zheng)(zheng)(zheng)(zheng)炮(pao)(pao)(pao)眼(yan)(yan)打(da)眼(yan)(yan)質量,炮(pao)(pao)(pao)眼(yan)(yan)必須按(an)技(ji)術要求合理布(bu)置。(2)要保(bao)證(zheng)(zheng)(zheng)(zheng)掏槽眼(yan)(yan)以及其他眼(yan)(yan)眼(yan)(yan)的(de)打(da)眼(yan)(yan)質量,一定要在(zai)規(gui)定位置上(shang)打(da)眼(yan)(yan);二要保(bao)證(zheng)(zheng)(zheng)(zheng)炮(pao)(pao)(pao)眼(yan)(yan)深度和角度。(3)聚(ju)(ju)能(neng)(neng)管(guan)裝藥(yao)(yao)時(shi),要保(bao)證(zheng)(zheng)(zheng)(zheng)乳化炸藥(yao)(yao)在(zai)聚(ju)(ju)能(neng)(neng)管(guan)中空內壁中填充飽滿不得有空隙(xi)出現時(shi)以產生(sheng)拒爆。(4)聚(ju)(ju)能(neng)(neng)管(guan)在(zai)炮(pao)(pao)(pao)眼(yan)(yan)中裝填時(shi),要保(bao)證(zheng)(zheng)(zheng)(zheng)聚(ju)(ju)能(neng)(neng)管(guan)的(de)兩條聚(ju)(ju)能(neng)(neng)槽指向(xiang)巷道(dao)輪(lun)(lun)廓(kuo)線方(fang)向(xiang)并(bing)且各個(ge)炮(pao)(pao)(pao)眼(yan)(yan)聚(ju)(ju)能(neng)(neng)管(guan)的(de)聚(ju)(ju)能(neng)(neng)槽軸線方(fang)面要保(bao)證(zheng)(zheng)(zheng)(zheng)相(xiang)互連接(jie)在(zai)隧道(dao)輪(lun)(lun)廓(kuo)線上(shang)。否則成(cheng)型(xing)效果不僅(jin)不好(hao)(hao),反而更差。(5)保(bao)證(zheng)(zheng)(zheng)(zheng)炮(pao)(pao)(pao)眼(yan)(yan)堵塞質量。(6)放炮(pao)(pao)(pao)員應提前按(an)規(gui)定裝好(hao)(hao)聚(ju)(ju)能(neng)(neng)管(guan)的(de)炸藥(yao)(yao),并(bing)做好(hao)(hao)準備工作。試用范圍:一級至五(wu)級圍巖的(de)光面爆破工程。