我國20世紀60年(nian)代利用(yong)斷裂力學(xue)對(dui)巖(yan)石(shi)(shi)損(sun)傷引起的裂紋擴展進(jin)行過試(shi)(shi)驗(yan)研(yan)究,為(wei)聚(ju)(ju)能(neng)(neng)爆破(po)技術(shu)應用(yong)到(dao)工程(cheng)做了不少理論分析,也取得(de)一些(xie)進(jin)展。80年(nian)代中(zhong)期開始(shi)進(jin)行應用(yong)研(yan)究,以北(bei)京礦業學(xue)院(yuan)為(wei)代表,著(zhu)重(zhong)研(yan)究了聚(ju)(ju)能(neng)(neng)藥包切割饑理和應用(yong)。1987年(nian)淮南(nan)礦業學(xue)院(yuan)取得(de)“雙面切割器(qi)”的zhuanli,1995年(nian)又取得(de)“大理石(shi)(shi)花崗巖(yan)切割技術(shu)應用(yong)”zhuanli。1991年(nian)中(zhong)國水電七(qi)局曾試(shi)(shi)圖采(cai)用(yong)硬質紙加工聚(ju)(ju)能(neng)(neng)藥管成形(xing)聚(ju)(ju)能(neng)(neng)藥卷做過聚(ju)(ju)能(neng)(neng)預裂爆破(po)試(shi)(shi)驗(yan)研(yan)究,但(dan)終(zhong)因(yin)當時的技術(shu)及工藝水平的限制(zhi)無法用(yong)于正常施工,但(dan)是他們開了橢圓雙極線(xian)性聚(ju)(ju)能(neng)(neng)結構試(shi)(shi)驗(yan)的先河(he)。雙聚(ju)(ju)能(neng)(neng)預裂與光面爆破(po)綜合技術(shu)開創輪廓控制(zhi)爆破(po)新(xin)時代。
專業c型聚能管水壓光面爆破較水壓光面爆破,在周邊眼單循環火工品使用量上節約費用8.3%,周邊眼鉆孔數量從39個下降為23個費用節約41%,混凝土噴射每延米節約1.37立方米。茂名c型聚能管水壓(ya)(ya)光(guang)面(mian)(mian)爆(bao)(bao)(bao)破(po)比水壓(ya)(ya)光(guang)面(mian)(mian)爆(bao)(bao)(bao)破(po)每(mei)循環(huan)(huan)節(jie)(jie)約費用(yong)258.4元,即每(mei)延米節(jie)(jie)約76較元,節(jie)(jie)約費用(yong)比例(li)達32%。此外,聚(ju)(ju)能管水壓(ya)(ya)光(guang)面(mian)(mian)爆(bao)(bao)(bao)破(po)能有效(xiao)降(jiang)低隧道內石渣塊度和粉塵含量(liang)(liang),還(huan)可使(shi)通(tong)風時(shi)間有效(xiao)縮短33%。聚(ju)(ju)能管光(guang)面(mian)(mian)爆(bao)(bao)(bao)破(po)工(gong)藝技(ji)術(shu)(shu)很(hen)(hen)成(cheng)(cheng)熟、可操作性很(hen)(hen)強、材料成(cheng)(cheng)本很(hen)(hen)低、施工(gong)速度很(hen)(hen)快(kuai)、節(jie)(jie)能環(huan)(huan)保效(xiao)果很(hen)(hen)顯著(zhu)、經濟效(xiao)益社會效(xiao)益很(hen)(hen)高。聚(ju)(ju)能管定(ding)向爆(bao)(bao)(bao)破(po)技(ji)術(shu)(shu)是(shi)(shi)近幾年發展(zhan)起(qi)來的(de)一(yi)項掘進新技(ji)術(shu)(shu),這種爆(bao)(bao)(bao)破(po)技(ji)術(shu)(shu)與傳統的(de)光(guang)面(mian)(mian)爆(bao)(bao)(bao)破(po)技(ji)術(shu)(shu)有一(yi)定(ding)的(de)差別,聚(ju)(ju)能管定(ding)向爆(bao)(bao)(bao)破(po)原理是(shi)(shi)在巷道周邊眼中,將炸裝在聚(ju)(ju)能管中起(qi)爆(bao)(bao)(bao),爆(bao)(bao)(bao)破(po)時(shi)利用(yong)聚(ju)(ju)能管的(de)聚(ju)(ju)能作用(yong),以減(jian)少裂(lie)隙(xi)的(de)數量(liang)(liang)和控制優勢裂(lie)隙(xi)的(de)發展(zhan)方向。
是(shi)將炸(zha)藥(yao)裝在(zai)(zai)聚能(neng)(neng)管內,兩頭均(jun)放置了水(shui)(shui)袋,聚能(neng)(neng)管爆炸(zha)產生的(de)高溫高壓射(she)流(liu),讓水(shui)(shui)袋產生“水(shui)(shui)楔”效應,使圍巖(yan)裂縫(feng)加劇延伸擴展。它是(shi)在(zai)(zai)水(shui)(shui)壓光面爆破(po)基礎上發展起(qi)來的(de)一項(xiang)新技術,區(qu)別只是(shi)在(zai)(zai)周邊眼中安(an)裝專用線性聚能(neng)(neng)藥(yao)管替代常規爆破(po)藥(yao)卷和傳爆線,只要(yao)做(zuo)到七大關鍵(jian)環節:水(shui)(shui)袋挺拔飽(bao)滿、炮泥軟硬(ying)適中、水(shui)(shui)袋裝填(tian)到底、炮泥回填(tian)到口、木棍逐(zhu)節搗固、水(shui)(shui)藥(yao)緊密相連(lian)、槽面必須平行,就能(neng)(neng)對控制超欠挖起(qi)到良好效果。在(zai)(zai)推廣水(shui)(shui)壓爆破(po)的(de)基礎上,去年(nian)9月,水(shui)(shui)壓聚能(neng)(neng)爆破(po)的(de)成果上,今年(nian)更為深入地在(zai)(zai)興泉鐵路(lu)大嶺隧(sui)道、牡佳鐵路(lu)麻山隧(sui)道采(cai)用了此(ci)項(xiang)技術,積累(lei)了成功(gong)經驗。
是(shi)由管(guan)體(ti)、前錐(zhui)形定格(ge)(ge)(ge)帽、后(hou)定格(ge)(ge)(ge)堵(du)構成,管(guan)體(ti)為(wei)塑性材料制成,呈管(guan)狀(zhuang),管(guan)體(ti)外(wai)(wai)(wai)徑小于正(zheng)常炮眼內(nei)徑,長度(du)可隨(sui)爆(bao)破需要生產,管(guan)體(ti)兩(liang)端各有(you)外(wai)(wai)(wai)螺(luo)紋(wen)(wen),兩(liang)端外(wai)(wai)(wai)螺(luo)紋(wen)(wen)間有(you)一縱向切(qie)縫,切(qie)縫間等(deng)距有(you)加強筋,前錐(zhui)形定格(ge)(ge)(ge)帽呈傘狀(zhuang),傘形尖有(you)一光孔,兩(liang)側直壁內(nei)徑有(you)螺(luo)紋(wen)(wen),與(yu)管(guan)體(ti)外(wai)(wai)(wai)徑前端螺(luo)紋(wen)(wen)配合(he)(he),帽體(ti)外(wai)(wai)(wai)徑大于管(guan)體(ti),后(hou)定格(ge)(ge)(ge)堵(du)為(wei)一封蓋(gai),外(wai)(wai)(wai)徑直徑大于管(guan)體(ti)外(wai)(wai)(wai)徑,與(yu)前錐(zhui)形定格(ge)(ge)(ge)帽外(wai)(wai)(wai)徑一致,后(hou)定格(ge)(ge)(ge)堵(du)內(nei)徑有(you)螺(luo)紋(wen)(wen),與(yu)管(guan)體(ti)外(wai)(wai)(wai)徑后(hou)端螺(luo)紋(wen)(wen)配合(he)(he)。可根據炮眼深度(du)采用合(he)(he)適的(de)聚(ju)能管(guan)管(guan)體(ti),不需其他(ta)工具幫(bang)助送入炮眼,切(qie)縫方向準(zhun)確,兩(liang)端的(de)前錐(zhui)形定格(ge)(ge)(ge)帽和后(hou)定格(ge)(ge)(ge)堵(du)外(wai)(wai)(wai)徑與(yu)炮眼內(nei)徑一致,保證聚(ju)能管(guan)管(guan)體(ti)同心(xin),定向準(zhun)確。且利于工業(ye)(ye)化生產,作業(ye)(ye)安全
采(cai)用(yong)(yong)一種(zhong)抗靜電阻燃的特種(zhong)塑料(liao)管(guan)(guan)(guan)、異形雙槽(cao)聚能(neng)管(guan)(guan)(guan),根據炮眼(yan)深度可(ke)長可(ke)短。是(shi)兩個相似(si)半(ban)壁(bi)管(guan)(guan)(guan)組成,半(ban)壁(bi)管(guan)(guan)(guan)中央有個凹進(jin)去的槽(cao)叫做'聚能(neng)槽(cao)",使用(yong)(yong)聚能(neng)管(guan)(guan)(guan)光面(mian)(mian)爆(bao)(bao)破(po)(po)(po)成型(xing)效(xiao)果(guo)好,開挖輪廓(kuo)線平(ping)順整齊,圍巖擾動(dong)(dong)減(jian)(jian)少、超(chao)(chao)欠(qian)挖明顯(xian)改善,有利于(yu)支護工(gong)序施工(gong),同時(shi)(shi)混凝土回填成本(ben)大(da)(da)為降(jiang)(jiang)低(di)。鑿(zao)孔(kong)率減(jian)(jian)少30%,大(da)(da)大(da)(da)降(jiang)(jiang)低(di)了爆(bao)(bao)破(po)(po)(po)作業工(gong)班(ban)的勞動(dong)(dong)量:鉆孔(kong)縮短30分鐘、少打眼(yan)、出渣量減(jian)(jian)少,降(jiang)(jiang)低(di)了材料(liao)成本(ben)、減(jian)(jian)少工(gong)時(shi)(shi)消耗、勞動(dong)(dong)效(xiao)率明顯(xian)提高(gao),周邊眼(yan)爆(bao)(bao)破(po)(po)(po)成本(ben)降(jiang)(jiang)低(di)30%以(yi)上(shang),半(ban)眼(yan)痕保留(liu)率高(gao)達85%以(yi)上(shang)。pvc爆(bao)(bao)破(po)(po)(po)聚能(neng)管(guan)(guan)(guan)主要應用(yong)(yong)于(yu)隧道、煤(mei)礦、鐵(tie)礦等需要進(jin)行光面(mian)(mian)爆(bao)(bao)破(po)(po)(po)施工(gong)的工(gong)程。采(cai)用(yong)(yong)聚能(neng)管(guan)(guan)(guan)的光面(mian)(mian)爆(bao)(bao)破(po)(po)(po)可(ke)減(jian)(jian)少鉆孔(kong),擴(kuo)大(da)(da)孔(kong)距(ju),減(jian)(jian)少導爆(bao)(bao)管(guan)(guan)(guan)用(yong)(yong)量,減(jian)(jian)少超(chao)(chao)挖,減(jian)(jian)少噴漿,提高(gao)半(ban)孔(kong)率,既(ji)節省了成本(ben)又提高(gao)了施工(gong)效(xiao)率。
預裂(lie)與光面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)技(ji)術的(de)(de)歷史(shi)與現狀(zhuang):預裂(lie)爆(bao)(bao)(bao)(bao)破(po)(po)(po)是(shi)(shi)沿設計(ji)開挖(wa)邊(bian)(bian)界布置(zhi)密集(ji)炮(pao)孔,采(cai)(cai)取不耦(ou)合(he)(he)裝藥(yao)或裝填(tian)低(di)威(wei)力(li)炸藥(yao),在主爆(bao)(bao)(bao)(bao)區之(zhi)(zhi)前(qian)起爆(bao)(bao)(bao)(bao),從(cong)而在爆(bao)(bao)(bao)(bao)區與保留(liu)區之(zhi)(zhi)間形(xing)(xing)成(cheng)預裂(lie)縫(feng),以減弱主爆(bao)(bao)(bao)(bao)破(po)(po)(po)對保留(liu)巖體的(de)(de)破(po)(po)(po)壞(huai)并形(xing)(xing)成(cheng)平整輪廓(kuo)面(mian)的(de)(de)爆(bao)(bao)(bao)(bao)破(po)(po)(po)作(zuo)業(ye)。光面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)是(shi)(shi)沿設計(ji)開挖(wa)邊(bian)(bian)界布設密集(ji)炮(pao)孔,采(cai)(cai)用不耦(ou)合(he)(he)裝藥(yao)或裝填(tian)低(di)威(wei)力(li)炸藥(yao),在主爆(bao)(bao)(bao)(bao)區爆(bao)(bao)(bao)(bao)破(po)(po)(po)之(zhi)(zhi)后起爆(bao)(bao)(bao)(bao)的(de)(de)以形(xing)(xing)成(cheng)平整的(de)(de)開挖(wa)輪廓(kuo)面(mian)的(de)(de)爆(bao)(bao)(bao)(bao)破(po)(po)(po)作(zuo)業(ye)。爆(bao)(bao)(bao)(bao)破(po)(po)(po)技(ji)術的(de)(de)發展是(shi)(shi)先出現光面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po),然后衍生(sheng)發展為預裂(lie)爆(bao)(bao)(bao)(bao)破(po)(po)(po)。聚能管國內歷史(shi)與現狀(zhuang),我國于(yu)1964~1965年(nian)在湖北陸水水電站施工中(zhong)做(zuo)過淺孔預裂(lie)爆(bao)(bao)(bao)(bao)破(po)(po)(po)試(shi)驗(yan),1965年(nian)鐵(tie)道部(bu)門在成(cheng)昆鐵(tie)路建設中(zhong)開始(shi)試(shi)驗(yan)光面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po),1977年(nian)在西延線張(zhang)家船工點,全(quan)長近(jin)200m的(de)(de)2000m2路塹邊(bian)(bian)坡(po)全(quan)部(bu)采(cai)(cai)用光面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po),爆(bao)(bao)(bao)(bao)破(po)(po)(po)后邊(bian)(bian)坡(po)平整穩定,殘留(liu)的(de)(de)半孔清晰可見(jian),是(shi)(shi)鐵(tie)路建設中(zhong)采(cai)(cai)用路塹光面(mian)爆(bao)(bao)(bao)(bao)破(po)(po)(po)。