水(shui)壓(ya)(ya)(ya)光(guang)面(mian)(mian)爆(bao)(bao)破(po)(po)(po)較水(shui)壓(ya)(ya)(ya)光(guang)面(mian)(mian)爆(bao)(bao)破(po)(po)(po),在(zai)周(zhou)(zhou)邊眼單循環(huan)火工品(pin)使用(yong)量(liang)上節(jie)約(yue)(yue)費用(yong)8.3%,周(zhou)(zhou)邊眼鉆孔數量(liang)從39個下降(jiang)(jiang)為23個費用(yong)節(jie)約(yue)(yue)41%,混凝土噴射每(mei)延米節(jie)約(yue)(yue)1.37立方米。水(shui)壓(ya)(ya)(ya)光(guang)面(mian)(mian)爆(bao)(bao)破(po)(po)(po)比水(shui)壓(ya)(ya)(ya)光(guang)面(mian)(mian)爆(bao)(bao)破(po)(po)(po)每(mei)循環(huan)節(jie)約(yue)(yue)費用(yong)258.4元,即(ji)每(mei)延米節(jie)約(yue)(yue)76較元,節(jie)約(yue)(yue)費用(yong)比例達32%。此外,聚(ju)(ju)能(neng)管(guan)(guan)水(shui)壓(ya)(ya)(ya)光(guang)面(mian)(mian)爆(bao)(bao)破(po)(po)(po)能(neng)有(you)效(xiao)降(jiang)(jiang)低(di)隧道內石(shi)渣塊(kuai)度(du)和粉塵含量(liang),還(huan)可(ke)使通風(feng)時間(jian)有(you)效(xiao)縮短33%。聚(ju)(ju)能(neng)管(guan)(guan)光(guang)面(mian)(mian)爆(bao)(bao)破(po)(po)(po)工藝技(ji)術(shu)很(hen)(hen)成熟、可(ke)操作(zuo)性很(hen)(hen)強、材料成本很(hen)(hen)低(di)、施工速度(du)很(hen)(hen)快、節(jie)能(neng)環(huan)保效(xiao)果很(hen)(hen)顯(xian)著、經濟效(xiao)益(yi)社會效(xiao)益(yi)很(hen)(hen)高。聚(ju)(ju)能(neng)管(guan)(guan)定(ding)向(xiang)爆(bao)(bao)破(po)(po)(po)技(ji)術(shu)是(shi)近幾年發展(zhan)(zhan)起來(lai)的(de)一項掘進新技(ji)術(shu),這種爆(bao)(bao)破(po)(po)(po)技(ji)術(shu)與傳統的(de)光(guang)面(mian)(mian)爆(bao)(bao)破(po)(po)(po)技(ji)術(shu)有(you)一定(ding)的(de)差別(bie),聚(ju)(ju)能(neng)管(guan)(guan)定(ding)向(xiang)爆(bao)(bao)破(po)(po)(po)原理是(shi)在(zai)巷道周(zhou)(zhou)邊眼中(zhong),將炸裝在(zai)聚(ju)(ju)能(neng)管(guan)(guan)中(zhong)起爆(bao)(bao),爆(bao)(bao)破(po)(po)(po)時利用(yong)聚(ju)(ju)能(neng)管(guan)(guan)的(de)聚(ju)(ju)能(neng)作(zuo)用(yong),以減少裂隙(xi)(xi)的(de)數量(liang)和控制優勢裂隙(xi)(xi)的(de)發展(zhan)(zhan)方向(xiang)。
在工程爆破中,礦用型雙向聚能管價格常用的起爆方法有:電力起爆法、導火索起爆法、導爆索起爆法、導爆管起爆法。電力起爆法是利用電能使雷管爆炸,進而起爆炸藥的起爆芳法。它所需的器材有:電雷管、導線和起爆電源。電爆網路的連接形式,要根據爆破方法、爆破規模、工程的重要性、所選起爆電源及其起爆能力等進行選擇,云浮礦用型雙向聚能管基本連(lian)接方(fang)式有(you)(you):串聯(lian)、并聯(lian)、串并聯(lian)和并串聯(lian)等。電(dian)(dian)(dian)(dian)(dian)力起爆(bao)(bao)(bao)法具(ju)有(you)(you)較安(an)全、可靠、準確、高(gao)效等優點(dian),在國內外(wai)仍占(zhan)有(you)(you)較大(da)(da)比重。在大(da)(da)、中(zhong)型(xing)爆(bao)(bao)(bao)破(po)中(zhong),主要仍是用電(dian)(dian)(dian)(dian)(dian)力起爆(bao)(bao)(bao)。特別是在有(you)(you)瓦斯、礦塵爆(bao)(bao)(bao)炸的環(huan)境中(zhong),電(dian)(dian)(dian)(dian)(dian)力起爆(bao)(bao)(bao)是主要的起爆(bao)(bao)(bao)方(fang)法。但電(dian)(dian)(dian)(dian)(dian)力起爆(bao)(bao)(bao)容易受各種電(dian)(dian)(dian)(dian)(dian)信號的干(gan)擾(rao)而發生早爆(bao)(bao)(bao),因此在有(you)(you)雜散電(dian)(dian)(dian)(dian)(dian)、靜電(dian)(dian)(dian)(dian)(dian)、雷電(dian)(dian)(dian)(dian)(dian)、射(she)頻電(dian)(dian)(dian)(dian)(dian)、高(gao)壓感應電(dian)(dian)(dian)(dian)(dian)的環(huan)境中(zhong),不能使用普通(tong)電(dian)(dian)(dian)(dian)(dian)雷管(guan)。
我國20世紀60年代利用(yong)(yong)斷裂力(li)學(xue)對巖(yan)(yan)石損傷(shang)引起(qi)的(de)裂紋擴(kuo)展進行過(guo)試驗研(yan)究,為聚能(neng)(neng)(neng)爆(bao)(bao)破(po)技(ji)(ji)術應(ying)用(yong)(yong)到工(gong)程(cheng)做了(le)不少理論分析,也取得(de)一些進展。80年代中期(qi)開始進行應(ying)用(yong)(yong)研(yan)究,以北京礦業學(xue)院(yuan)為代表,著重研(yan)究了(le)聚能(neng)(neng)(neng)藥包(bao)切割饑(ji)理和應(ying)用(yong)(yong)。1987年淮南礦業學(xue)院(yuan)取得(de)“雙(shuang)面切割器”的(de)zhuanli,1995年又取得(de)“大理石花(hua)崗巖(yan)(yan)切割技(ji)(ji)術應(ying)用(yong)(yong)”zhuanli。1991年中國水電七局曾試圖采(cai)用(yong)(yong)硬(ying)質紙加工(gong)聚能(neng)(neng)(neng)藥管成形聚能(neng)(neng)(neng)藥卷(juan)做過(guo)聚能(neng)(neng)(neng)預(yu)裂爆(bao)(bao)破(po)試驗研(yan)究,但終因當時(shi)的(de)技(ji)(ji)術及工(gong)藝水平的(de)限制無法用(yong)(yong)于正常施(shi)工(gong),但是他(ta)們開了(le)橢圓(yuan)雙(shuang)極(ji)線性(xing)聚能(neng)(neng)(neng)結(jie)構試驗的(de)先河。雙(shuang)聚能(neng)(neng)(neng)預(yu)裂與光面爆(bao)(bao)破(po)綜(zong)合技(ji)(ji)術開創輪廓控制爆(bao)(bao)破(po)新(xin)時(shi)代。
各種爆(bao)(bao)(bao)(bao)破(po)(po)、爆(bao)(bao)(bao)(bao)破(po)(po)器(qi)(qi)材銷毀以(yi)及爆(bao)(bao)(bao)(bao)破(po)(po)器(qi)(qi)材意外爆(bao)(bao)(bao)(bao)炸時(shi),爆(bao)(bao)(bao)(bao)破(po)(po)源與(yu)人員和其他保護對象(xiang)之(zhi)(zhi)間的(de)安(an)(an)全(quan)(quan)(quan)距(ju)離(li)(li)稱為(wei)(wei)爆(bao)(bao)(bao)(bao)破(po)(po)安(an)(an)全(quan)(quan)(quan)距(ju)離(li)(li)。爆(bao)(bao)(bao)(bao)破(po)(po)安(an)(an)全(quan)(quan)(quan)距(ju)離(li)(li)應取各種爆(bao)(bao)(bao)(bao)破(po)(po)效應(地震、沖擊波、飛(fei)石、有(you)(you)毒氣(qi)體(ti)(ti)等)分別核定(ding)的(de)大值。爆(bao)(bao)(bao)(bao)破(po)(po)時(shi),必然產生爆(bao)(bao)(bao)(bao)破(po)(po)地震、空氣(qi)沖擊波、碎石飛(fei)散(san)及有(you)(you)害(hai)(hai)氣(qi)體(ti)(ti),因此,爆(bao)(bao)(bao)(bao)破(po)(po)設計時(shi)必須確定(ding)爆(bao)(bao)(bao)(bao)破(po)(po)危(wei)害(hai)(hai)范圍,并確定(ding)爆(bao)(bao)(bao)(bao)點到附近人員、設備、建(jian)筑物(wu)及井巷等的(de)安(an)(an)全(quan)(quan)(quan),這一(yi)段(duan)距(ju)離(li)(li)就稱為(wei)(wei)爆(bao)(bao)(bao)(bao)破(po)(po)安(an)(an)全(quan)(quan)(quan)距(ju)離(li)(li)。如何控(kong)制好這段(duan)距(ju)離(li)(li)就顯的(de)尤為(wei)(wei)重(zhong)要。為(wei)(wei)保證爆(bao)(bao)(bao)(bao)破(po)(po)安(an)(an)全(quan)(quan)(quan),爆(bao)(bao)(bao)(bao)破(po)(po)地點與(yu)人員或其他應保護對象(xiang)之(zhi)(zhi)間必須保持(chi)短的(de)相隔長(chang)度。爆(bao)(bao)(bao)(bao)破(po)(po)有(you)(you)害(hai)(hai)效應隨距(ju)離(li)(li)的(de)增(zeng)加有(you)(you)規(gui)律地衰(shuai)減,用距(ju)離(li)(li)作(zuo)為(wei)(wei)安(an)(an)全(quan)(quan)(quan)尺度可限(xian)定(ding)爆(bao)(bao)(bao)(bao)破(po)(po)有(you)(you)害(hai)(hai)效應在(zai)允(yun)許限(xian)度之(zhi)(zhi)內。中國《爆(bao)(bao)(bao)(bao)破(po)(po)安(an)(an)全(quan)(quan)(quan)規(gui)程》規(gui)定(ding)了爆(bao)(bao)(bao)(bao)破(po)(po)地震安(an)(an)全(quan)(quan)(quan)距(ju)離(li)(li),個別飛(fei)散(san)物(wu)安(an)(an)全(quan)(quan)(quan)距(ju)離(li)(li),以(yi)及爆(bao)(bao)(bao)(bao)炸沖擊波的(de)安(an)(an)全(quan)(quan)(quan)距(ju)離(li)(li)。