給大(da)家介紹下爆(bao)(bao)破聚(ju)能管(guan)的(de)技術(shu)原(yuan)理∶炸(zha)(zha)藥爆(bao)(bao)炸(zha)(zha)產生的(de)爆(bao)(bao)轟波(bo)通過聚(ju)能管(guan)的(de)聚(ju)能槽,將炸(zha)(zha)藥的(de)動能、勢能轉換成(cheng)高壓(ya)、高速、高能的(de)射流(liu)(liu)(liu),切割演示成(cheng)縫(feng)。射流(liu)(liu)(liu)在孔(kong)壁產生射流(liu)(liu)(liu)壓(ya)力(li)達7000MPa,巖石(shi)動載(zai)抗壓(ya)強度(du)為(wei)200MPa,抗拉為(wei)1/8~1/10的(de)抗壓(ya)強度(du),相鄰兩(liang)(liang)炮孔(kong)互(hu)為(wei)鄰空面(mian),疊加(jia)后的(de)壓(ya)縮波(bo)變為(wei)稀疏(shu)波(bo),在兩(liang)(liang)炮眼連(lian)線(xian)(xian)上使巖石(shi)結構斷裂(lie),形成(cheng)裂(lie)紋。準靜態(tai)氣體膨(peng)脹,靜態(tai)壓(ya)力(li)在兩(liang)(liang)炮孔(kong)最短連(lian)線(xian)(xian)兩(liang)(liang)側產生拉力(li)使巖石(shi)裂(lie)縫(feng)進一步(bu)擴展。根據爆(bao)(bao)破應力(li)集中(zhong)氣刃(ren)作用原(yuan)則,爆(bao)(bao)破氣體沿(yan)裂(lie)縫(feng)進一步(bu)擴大(da)貫通,拋落巖石(shi)。
我國(guo)于1983年制定(ding)了(le)《水工(gong)建(jian)筑(zhu)物巖行基礎開(kai)(kai)挖(wa)(wa)工(gong)程(cheng)施(shi)(shi)(shi)(shi)工(gong)技(ji)術(shu)(shu)(shu)(shu)規(gui)(gui)(gui)范(fan)》(sD 121l一1983)。自此(ci),在水利水電建(jian)設中預裂爆(bao)破(po)(po)(po)與(yu)光面(mian)爆(bao)破(po)(po)(po)已成(cheng)為(wei)必(bi)須進行的(de)保護邊(bian)坡(po)質量的(de)爆(bao)破(po)(po)(po)開(kai)(kai)挖(wa)(wa)技(ji)術(shu)(shu)(shu)(shu)措施(shi)(shi)(shi)(shi)。此(ci)后在此(ci)基礎上修訂(ding)的(de)《水工(gong)建(jian)筑(zhu)物巖石(shi)(shi)基礎開(kai)(kai)挖(wa)(wa)工(gong)程(cheng)施(shi)(shi)(shi)(shi)工(gong)技(ji)術(shu)(shu)(shu)(shu)規(gui)(gui)(gui)范(fan)》(SL 47一1994)以及在《水電水利爆(bao)破(po)(po)(po)工(gong)程(cheng)施(shi)(shi)(shi)(shi)工(gong)技(ji)術(shu)(shu)(shu)(shu)規(gui)(gui)(gui)范(fan)》(DL/T 5135—2001)和(he)《水工(gong)建(jian)筑(zhu)物巖石(shi)(shi)基礎開(kai)(kai)挖(wa)(wa)工(gong)程(cheng)施(shi)(shi)(shi)(shi)工(gong)技(ji)術(shu)(shu)(shu)(shu)規(gui)(gui)(gui)范(fan)》(DL/T 5389~2007)中預裂爆(bao)破(po)(po)(po)與(yu)光面(mian)爆(bao)破(po)(po)(po)均(jun)被編入并有所改進,DL/T 5135—2001正在修編為(wei)DL/T 5135—2012。鐵道(dao)部也不僅規(gui)(gui)(gui)定(ding)了(le)凡是(shi)Ⅲ級以上的(de)巖石(shi)(shi)邊(bian)坡(po),設計邊(bian)坡(po)坡(po)度(du)為(wei)1:0.1~1:0.75,在邊(bian)坡(po)部位的(de)爆(bao)破(po)(po)(po)設計和(he)施(shi)(shi)(shi)(shi)工(gong)都應(ying)采(cai)用光面(mian)爆(bao)破(po)(po)(po)或(huo)預裂爆(bao)破(po)(po)(po),并闡述(shu)了(le)光面(mian)(預裂)爆(bao)破(po)(po)(po)施(shi)(shi)(shi)(shi)工(gong)技(ji)術(shu)(shu)(shu)(shu)設計的(de)原(yuan)則(ze)和(he)參數、安全措施(shi)(shi)(shi)(shi),而且(qie)還明確了(le)路塹邊(bian)坡(po)光面(mian)(預裂)爆(bao)破(po)(po)(po)項目(mu)質量驗收檢測數量和(he)檢測方法。無疑(yi)該規(gui)(gui)(gui)程(cheng)的(de)實施(shi)(shi)(shi)(shi),有力地推(tui)動和(he)促進了(le)光面(mian)(預裂)爆(bao)破(po)(po)(po)技(ji)術(shu)(shu)(shu)(shu)在鐵路建(jian)設中的(de)應(ying)用與(yu)發展。
深孔爆破多向聚能管廠家施工因其復雜性、專業性、危險性,稍有不慎,將對人民的生命財產安全造成不可估量的損失,例如廣東宏大寧夏“10.16”、山東保利“5.20”等重大安全事故。因此,相較其他行業,國家出臺的相關法律法規多、專、嚴,從爆破材料(炸藥、雷管、導爆索?管?及相關材料)的生產、購進、運輸、儲存、發放、布網、連接、起爆、排爆等一系列程序均有嚴格的法律規定和科學的操作規程,并且相關從業單位和人員均應取得相應資質。連云港深孔爆破多向聚能管做為(wei)各類(lei)爆(bao)(bao)(bao)(bao)破(po)(po)(po)中不可(ke)或缺的(de)(de)一種導(dao)線(xian)(xian),特別不同于一般的(de)(de)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan),其(qi)質(zhi)量要求及(ji)各項技術參數也(ye)與普(pu)通電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)不同。部分(fen)家庭(ting)作坊(fang)式(shi)的(de)(de)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)廠無(wu)科學的(de)(de)生產(chan)工(gong)藝、無(wu)基本的(de)(de)檢測設備(bei)、無(wu)專(zhuan)業的(de)(de)技術人員,甚至不知道爆(bao)(bao)(bao)(bao)破(po)(po)(po)線(xian)(xian)的(de)(de)質(zhi)量要求和技術參數,更不可(ke)能(neng)制(zhi)訂自(zi)己的(de)(de)企(qi)業標準,僅(jin)憑簡陋(lou)的(de)(de)設備(bei)、以(yi)粗糙的(de)(de)模仿進(jin)行生產(chan)經營(ying)(ying)活動(dong),致使市場充斥著假冒偽劣產(chan)品,導(dao)致爆(bao)(bao)(bao)(bao)破(po)(po)(po)中提前或延(yan)遲起爆(bao)(bao)(bao)(bao)、盲炮增(zeng)加且(qie)強制(zhi)排爆(bao)(bao)(bao)(bao)困難,給人身安(an)全和財產(chan)以(yi)及(ji)正常(chang)的(de)(de)生產(chan)經營(ying)(ying)活動(dong)造成了(le)不可(ke)估量的(de)(de)損失。
采(cai)用一種(zhong)抗靜電阻燃的(de)特種(zhong)塑料(liao)(liao)管(guan)、異形雙槽聚(ju)(ju)能(neng)管(guan),根據炮眼深度可(ke)長可(ke)短。是(shi)兩個(ge)相似半壁管(guan)組成(cheng),半壁管(guan)中央有個(ge)凹進去的(de)槽叫做'聚(ju)(ju)能(neng)槽",使用聚(ju)(ju)能(neng)管(guan)光面(mian)爆破成(cheng)型(xing)效果好,開挖(wa)輪廓線平(ping)順(shun)整齊,圍巖(yan)擾(rao)動減(jian)(jian)少(shao)、超欠挖(wa)明顯(xian)改善,有利于支護工(gong)序施工(gong),同(tong)時(shi)(shi)混凝土回填成(cheng)本(ben)大(da)(da)為降(jiang)(jiang)低(di)(di)(di)。鑿孔(kong)(kong)率(lv)(lv)減(jian)(jian)少(shao)30%,大(da)(da)大(da)(da)降(jiang)(jiang)低(di)(di)(di)了爆破作(zuo)業工(gong)班的(de)勞動量(liang):鉆孔(kong)(kong)縮(suo)短30分鐘、少(shao)打(da)眼、出渣量(liang)減(jian)(jian)少(shao),降(jiang)(jiang)低(di)(di)(di)了材料(liao)(liao)成(cheng)本(ben)、減(jian)(jian)少(shao)工(gong)時(shi)(shi)消耗、勞動效率(lv)(lv)明顯(xian)提高(gao),周(zhou)邊(bian)眼爆破成(cheng)本(ben)降(jiang)(jiang)低(di)(di)(di)30%以上,半眼痕保留率(lv)(lv)高(gao)達85%以上。pvc爆破聚(ju)(ju)能(neng)管(guan)主要應用于隧道、煤礦(kuang)、鐵礦(kuang)等需要進行(xing)光面(mian)爆破施工(gong)的(de)工(gong)程。采(cai)用聚(ju)(ju)能(neng)管(guan)的(de)光面(mian)爆破可(ke)減(jian)(jian)少(shao)鉆孔(kong)(kong),擴大(da)(da)孔(kong)(kong)距,減(jian)(jian)少(shao)導爆管(guan)用量(liang),減(jian)(jian)少(shao)超挖(wa),減(jian)(jian)少(shao)噴漿,提高(gao)半孔(kong)(kong)率(lv)(lv),既節省了成(cheng)本(ben)又提高(gao)了施工(gong)效率(lv)(lv)。