在(zai)(zai)(zai)工(gong)程爆(bao)(bao)(bao)(bao)(bao)破(po)(po)中(zhong),常用(yong)的(de)(de)(de)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)方(fang)(fang)(fang)法(fa)(fa)有:電(dian)(dian)(dian)(dian)力(li)(li)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa)、導火索起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa)、導爆(bao)(bao)(bao)(bao)(bao)索起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa)、導爆(bao)(bao)(bao)(bao)(bao)管起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa)。電(dian)(dian)(dian)(dian)力(li)(li)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa)是(shi)利用(yong)電(dian)(dian)(dian)(dian)能使雷(lei)管爆(bao)(bao)(bao)(bao)(bao)炸,進而起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)炸藥的(de)(de)(de)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)芳法(fa)(fa)。它所(suo)需的(de)(de)(de)器材有:電(dian)(dian)(dian)(dian)雷(lei)管、導線和(he)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)電(dian)(dian)(dian)(dian)源(yuan)。電(dian)(dian)(dian)(dian)爆(bao)(bao)(bao)(bao)(bao)網(wang)路的(de)(de)(de)連接(jie)形式,要(yao)根據爆(bao)(bao)(bao)(bao)(bao)破(po)(po)方(fang)(fang)(fang)法(fa)(fa)、爆(bao)(bao)(bao)(bao)(bao)破(po)(po)規模、工(gong)程的(de)(de)(de)重要(yao)性、所(suo)選起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)電(dian)(dian)(dian)(dian)源(yuan)及其起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)能力(li)(li)等進行選擇,基本連接(jie)方(fang)(fang)(fang)式有:串聯(lian)、并聯(lian)、串并聯(lian)和(he)并串聯(lian)等。電(dian)(dian)(dian)(dian)力(li)(li)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法(fa)(fa)具有較(jiao)安全、可(ke)靠、準確、高效(xiao)等優點,在(zai)(zai)(zai)國內外仍占有較(jiao)大比重。在(zai)(zai)(zai)大、中(zhong)型爆(bao)(bao)(bao)(bao)(bao)破(po)(po)中(zhong),主要(yao)仍是(shi)用(yong)電(dian)(dian)(dian)(dian)力(li)(li)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)。特別(bie)是(shi)在(zai)(zai)(zai)有瓦斯(si)、礦塵爆(bao)(bao)(bao)(bao)(bao)炸的(de)(de)(de)環境中(zhong),電(dian)(dian)(dian)(dian)力(li)(li)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)是(shi)主要(yao)的(de)(de)(de)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)方(fang)(fang)(fang)法(fa)(fa)。但電(dian)(dian)(dian)(dian)力(li)(li)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)容(rong)易受各(ge)種(zhong)電(dian)(dian)(dian)(dian)信號的(de)(de)(de)干擾(rao)而發(fa)生早(zao)爆(bao)(bao)(bao)(bao)(bao),因此在(zai)(zai)(zai)有雜(za)散電(dian)(dian)(dian)(dian)、靜(jing)電(dian)(dian)(dian)(dian)、雷(lei)電(dian)(dian)(dian)(dian)、射頻電(dian)(dian)(dian)(dian)、高壓(ya)感應電(dian)(dian)(dian)(dian)的(de)(de)(de)環境中(zhong),不能使用(yong)普通電(dian)(dian)(dian)(dian)雷(lei)管。
對于爆(bao)(bao)破(po)作(zuo)(zuo)業安(an)(an)(an)(an)全(quan)(quan)技(ji)術(shu)的(de)(de)(de)(de)(de)(de)(de)研究,是(shi)從兩個方(fang)面(mian)去(qu)考慮的(de)(de)(de)(de)(de)(de)(de),一(yi)(yi)(yi)(yi)方(fang)面(mian)是(shi)炸和(he)(he)(he)起爆(bao)(bao)器材(cai)以(yi)及(ji)對其爆(bao)(bao)炸所造成的(de)(de)(de)(de)(de)(de)(de)破(po)壞作(zuo)(zuo)用進(jin)行限(xian)制的(de)(de)(de)(de)(de)(de)(de)安(an)(an)(an)(an)全(quan)(quan)技(ji)術(shu),這(zhe)是(shi)主(zhu)動的(de)(de)(de)(de)(de)(de)(de)。另一(yi)(yi)(yi)(yi)個方(fang)面(mian)是(shi)對爆(bao)(bao)破(po)所產生的(de)(de)(de)(de)(de)(de)(de)危(wei)害(hai)采取(qu)的(de)(de)(de)(de)(de)(de)(de)防(fang)(fang)護措(cuo)(cuo)施(shi),這(zhe)是(shi)被動的(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)個方(fang)面(mian)。兩者對阻止爆(bao)(bao)破(po)帶來的(de)(de)(de)(de)(de)(de)(de)破(po)壞性有(you)同(tong)樣的(de)(de)(de)(de)(de)(de)(de)重(zhong)要性,但在(zai)(zai)具體的(de)(de)(de)(de)(de)(de)(de)爆(bao)(bao)破(po)工程(cheng)(cheng)中,則常(chang)常(chang)會有(you)變化(hua)不定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)現(xian)象和(he)(he)(he)后果,因此,必須(xu)對每一(yi)(yi)(yi)(yi)項工程(cheng)(cheng)破(po)壞的(de)(de)(de)(de)(de)(de)(de)具體情況作(zuo)(zuo)細致的(de)(de)(de)(de)(de)(de)(de)分析研究,從而采取(qu)適當的(de)(de)(de)(de)(de)(de)(de)對策。同(tong)時,雖然技(ji)術(shu)不斷取(qu)得進(jin)步,須(xu)在(zai)(zai)操作(zuo)(zuo)過程(cheng)(cheng)中注(zhu)意每個工序,按照(zhao)安(an)(an)(an)(an)全(quan)(quan)規(gui)(gui)程(cheng)(cheng)認真作(zuo)(zuo)業。只要嚴格遵守(shou)安(an)(an)(an)(an)全(quan)(quan)規(gui)(gui)程(cheng)(cheng)、正確地采取(qu)安(an)(an)(an)(an)全(quan)(quan)技(ji)術(shu)措(cuo)(cuo)施(shi)和(he)(he)(he)防(fang)(fang)護措(cuo)(cuo)施(shi),任何(he)規(gui)(gui)模、任何(he)種(zhong)類的(de)(de)(de)(de)(de)(de)(de)爆(bao)(bao)破(po)是(shi)可以(yi)確保(bao)安(an)(an)(an)(an)全(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)。一(yi)(yi)(yi)(yi)些(xie)安(an)(an)(an)(an)全(quan)(quan)規(gui)(gui)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)條文是(shi)有(you)經驗教訓和(he)(he)(he)理論根據(ju)的(de)(de)(de)(de)(de)(de)(de),有(you)的(de)(de)(de)(de)(de)(de)(de)甚至是(shi)血的(de)(de)(de)(de)(de)(de)(de)教訓的(de)(de)(de)(de)(de)(de)(de)總結,所以(yi)一(yi)(yi)(yi)(yi)定(ding)(ding)要克(ke)服麻痹思想,嚴格執行安(an)(an)(an)(an)全(quan)(quan)規(gui)(gui)定(ding)(ding),決(jue)不能(neng)以(yi)沒出過事故而輕率地"突(tu)破(po)"規(gui)(gui)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)"框(kuang)框(kuang)"。
專用雙向爆破聚能管施工工藝嚴格遵循六字方針(掛滿、貼緊、對準):(1)要保證炮眼打眼質量,炮眼必須按技術要求合理布置。(2)要保證掏槽眼以及其他眼眼的打眼質量,一定要在規定位置上打眼;二梅州雙向爆破聚能管要保證(zheng)(zheng)炮眼(yan)深(shen)度和(he)角度。(3)聚(ju)(ju)(ju)能管裝藥時(shi),要保證(zheng)(zheng)乳化炸藥在聚(ju)(ju)(ju)能管中空內壁中填充(chong)飽(bao)滿不得有(you)空隙出現時(shi)以(yi)產生(sheng)拒(ju)爆(bao)。(4)聚(ju)(ju)(ju)能管在炮眼(yan)中裝填時(shi),要保證(zheng)(zheng)聚(ju)(ju)(ju)能管的兩條聚(ju)(ju)(ju)能槽指向巷(xiang)道輪(lun)廓線方(fang)向并(bing)且(qie)各(ge)個炮眼(yan)聚(ju)(ju)(ju)能管的聚(ju)(ju)(ju)能槽軸(zhou)線方(fang)面(mian)要保證(zheng)(zheng)相互連接在隧道輪(lun)廓線上。否(fou)則成型效果不僅(jin)不好,反而更差(cha)。(5)保證(zheng)(zheng)炮眼(yan)堵塞質(zhi)量。(6)放炮員應(ying)提前(qian)按規(gui)定裝好聚(ju)(ju)(ju)能管的炸藥,并(bing)做好準備(bei)工(gong)作。試用范圍(wei):一級(ji)至五級(ji)圍(wei)巖的光面(mian)爆(bao)破工(gong)程。
不(bu)成功(gong)的(de)(de)(de)事(shi)例是有的(de)(de)(de),如(ru)爆(bao)(bao)(bao)而不(bu)倒(dao)、實(shi)施(shi)定(ding)向(xiang)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)后沒有按爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)方案的(de)(de)(de)方向(xiang)倒(dao)塌等(deng)(deng)等(deng)(deng)。這些事(shi)例警示:從爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)設計(ji)、爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)器材(cai)質量(liang)、爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)施(shi)工(gong)到(dao)起爆(bao)(bao)(bao)網路連接等(deng)(deng),只要有一(yi)個環(huan)(huan)節出現失誤(wu),都將影響爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)工(gong)程的(de)(de)(de)效(xiao)果,乃至造成嚴重(zhong)(zhong)的(de)(de)(de)后果。爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)作業(ye)無(wu)論是老舊建筑物本(ben)身(shen)還是周(zhou)圍(wei)環(huan)(huan)境都十分(fen)復雜,這不(bu)僅要求認真調查(cha)爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)體的(de)(de)(de)結構(包括施(shi)工(gong)缺陷(xian)),分(fen)析受(shou)力狀況,同(tong)時(shi)還要對采取技術(shu)措施(shi)(如(ru)預處(chu)理、嵌補、支撐等(deng)(deng))的(de)(de)(de)可(ke)靠和(he)(he)安(an)全性(xing)進(jin)行分(fen)析,對可(ke)能出現的(de)(de)(de)意外情況,應預先制定(ding)應急方案,努(nu)力避免安(an)全事(shi)故和(he)(he)不(bu)必(bi)要的(de)(de)(de)損失。工(gong)程的(de)(de)(de)環(huan)(huan)保(bao)性(xing)越來越受(shou)到(dao)人們的(de)(de)(de)關(guan)注(zhu),同(tong)時(shi),探索無(wu)公害的(de)(de)(de)拆(chai)除爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)技術(shu),一(yi)直是爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)工(gong)作者追求的(de)(de)(de)目標。設立(li)掩蔽(bi)體對物體加以保(bao)護(hu),簡單的(de)(de)(de)辦法(fa)是用(yong)草袋、竹笆(ba)一(yi)類(lei)材(cai)料覆蓋在(zai)需要保(bao)護(hu)的(de)(de)(de)物體上面;對房屋和(he)(he)機器設備(bei)常(chang)要在(zai)迎面和(he)(he)頂部(bu)豎立(li)排架,用(yong)木板(ban)或荊笆(ba)上罩鐵絲網,抵御(yu)較多的(de)(de)(de)飛石和(he)(he)較強的(de)(de)(de)空(kong)氣沖擊波的(de)(de)(de)打(da)擊;對某些重(zhong)(zhong)要工(gong)程的(de)(de)(de)建筑物打(da)防震孔(kong)或者用(yong)預裂爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)將爆(bao)(bao)(bao)破(po)(po)(po)(po)(po)(po)(po)(po)區和(he)(he)被保(bao)護(hu)的(de)(de)(de)建筑物或工(gong)程設施(shi)隔離開來。
采用一(yi)種抗靜電阻燃的特種塑料(liao)管(guan)、異形雙槽(cao)聚(ju)(ju)能(neng)(neng)管(guan),根據炮眼(yan)(yan)深(shen)度可(ke)(ke)長可(ke)(ke)短。是兩個相(xiang)似(si)半(ban)(ban)壁(bi)管(guan)組成(cheng)(cheng),半(ban)(ban)壁(bi)管(guan)中央有個凹進去的槽(cao)叫做'聚(ju)(ju)能(neng)(neng)槽(cao)",使用聚(ju)(ju)能(neng)(neng)管(guan)光面(mian)爆(bao)(bao)(bao)破(po)(po)(po)成(cheng)(cheng)型效(xiao)果(guo)好,開挖(wa)輪(lun)廓(kuo)線平(ping)順(shun)整齊,圍巖擾(rao)動減少(shao)(shao)(shao)、超欠挖(wa)明(ming)顯(xian)改(gai)善,有利于(yu)支護工(gong)序施(shi)工(gong),同時(shi)混(hun)凝土回填成(cheng)(cheng)本(ben)大(da)(da)為降低。鑿孔(kong)率(lv)減少(shao)(shao)(shao)30%,大(da)(da)大(da)(da)降低了爆(bao)(bao)(bao)破(po)(po)(po)作業(ye)工(gong)班的勞動量:鉆孔(kong)縮短30分鐘、少(shao)(shao)(shao)打眼(yan)(yan)、出渣(zha)量減少(shao)(shao)(shao),降低了材料(liao)成(cheng)(cheng)本(ben)、減少(shao)(shao)(shao)工(gong)時(shi)消耗、勞動效(xiao)率(lv)明(ming)顯(xian)提(ti)(ti)高(gao),周(zhou)邊眼(yan)(yan)爆(bao)(bao)(bao)破(po)(po)(po)成(cheng)(cheng)本(ben)降低30%以(yi)上,半(ban)(ban)眼(yan)(yan)痕保留率(lv)高(gao)達85%以(yi)上。pvc爆(bao)(bao)(bao)破(po)(po)(po)聚(ju)(ju)能(neng)(neng)管(guan)主要(yao)應(ying)用于(yu)隧道、煤礦(kuang)、鐵礦(kuang)等需要(yao)進行光面(mian)爆(bao)(bao)(bao)破(po)(po)(po)施(shi)工(gong)的工(gong)程。采用聚(ju)(ju)能(neng)(neng)管(guan)的光面(mian)爆(bao)(bao)(bao)破(po)(po)(po)可(ke)(ke)減少(shao)(shao)(shao)鉆孔(kong),擴大(da)(da)孔(kong)距,減少(shao)(shao)(shao)導爆(bao)(bao)(bao)管(guan)用量,減少(shao)(shao)(shao)超挖(wa),減少(shao)(shao)(shao)噴漿,提(ti)(ti)高(gao)半(ban)(ban)孔(kong)率(lv),既節省(sheng)了成(cheng)(cheng)本(ben)又提(ti)(ti)高(gao)了施(shi)工(gong)效(xiao)率(lv)。