梁子湖堤应急抢险拆除精准控制爆破设计
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摘要
长江流域特大洪水严重威胁沿江城市安全,湖北梁子湖与牛山湖之间隔堤需实施爆破拆除,论述了应急抢险拆除工程中的爆破方案、爆破参数、爆破网路设计。爆破拆除堤段长1000 m、顶宽4 m,结合实际情况,333个药室沿堤轴线布置,采用非电复式串联交叉接力网路依次传爆;药室内采用高段别非电毫秒导爆管雷管起爆,药室外采用低段别非电毫秒导爆管雷管传爆,实现孔间微差起爆,最大单响药量216 kg,网路总延时2.75 s;采用单个药包同时用导爆管和导爆索双重起爆器材起爆的方式,提高了网路起爆成功率和精准传爆率。
Floods in the Yangtze River Valley seriously threatened the safety of cities along the Yangtze River,so the embankment between Liangzi Lake and Niu Shan Lake in Hubei Province needed blasting demolition.The blasting scheme was designed including blasting parameters and blasting network.The embankment was 1000 m long and 4 m wide,respectively.According to the classical formula and actual situation,333 chambers were arranged along the embankment axis,and detonated by non-electric series crossover relay detonation transmission network.The maximum charge amount per delay interval was 216 kg with millisecond Nonel detonation network,where the high segment millisecond delay detonators were used within the holes,and the low segment millisecond delay detonators were linked out of the hole,and the total network delay was 2.75 s.Single explosive package detonated by both non-electric millisecond detonator and detonating cord,by which the detonation transmission precise got promoted.
Floods in the Yangtze River Valley seriously threatened the safety of cities along the Yangtze River,so the embankment between Liangzi Lake and Niu Shan Lake in Hubei Province needed blasting demolition.The blasting scheme was designed including blasting parameters and blasting network.The embankment was 1000 m long and 4 m wide,respectively.According to the classical formula and actual situation,333 chambers were arranged along the embankment axis,and detonated by non-electric series crossover relay detonation transmission network.The maximum charge amount per delay interval was 216 kg with millisecond Nonel detonation network,where the high segment millisecond delay detonators were used within the holes,and the low segment millisecond delay detonators were linked out of the hole,and the total network delay was 2.75 s.Single explosive package detonated by both non-electric millisecond detonator and detonating cord,by which the detonation transmission precise got promoted.
引文
[1] 郭生练,黄国雄,王忠法,等.湖北省湖泊志[M].武汉:湖北科学技术出版社,2014.
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[10] 张斌,李凯.复杂条件下大体积复合围堰拆除爆破设计[J].云南水力发电,2017,33(2):84-87.[10] ZHANG Bin,LI Kai.Demolition blasting design of large-volume composite cofferdam under complicated conditions[J].Yunnan Water Power,2017,33(2):84-87.(in Chinese)
[11] 张忠伟,任舸,李洪涛.锦屏二级水电站导流隧洞进口围堰拆除爆破[J].爆破,2011,28(4):77-80.[11] ZHANG Zhong-wei,REN Ge,LI Hong-tao.Explosive demolition of intake cofferdam of diversion tunnel on Jingping Ⅱ Hydropower Station[J].Blasting,2011,28(4):77-80.(in Chinese)
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[14] 赵中宇,梁向前,温新平.禹门口扩建泵站岩坎爆破拆除与安全控制[J].工程爆破,2017,23(4):82-85.[14] ZHAO Zhong-yu,LIANG Xiang-qian,WEN Xin-ping.Blasting demolition and safety control for rock ridge of yymenkou extension pumping station[J].Engineering Blasting,2017,23(4):82-85.(in Chinese)
[15] 马超峰,刘强.围堰拆除控制性爆破设计及安全控制[J].湖南水利水电,2018(2):65-68.[15] MA Chao-feng,LIU Qiang.Design and safety control of controlled blasting for cofferdam demolition[J].Hunan Hydro & Power,2018(2):65-68.(in Chinese)
[16] 蔡彬,姚巍,周维.黄登水电站导流洞进口围堰拆除爆破[J].云南水力发电,2017,33(2):91-93.[16] CAI Bin,YAO Wei,ZHOU Wei.Demolition blasting of intakes of cofferdam of diversion tunnel of Huangdeng Hydropower Station[J].Yunnan Water Power,2017,33(2):91-93.(in Chinese)
[17] 巩维屏.拆除爆破在察尔森水库除险加固中的应用[J].东北水利水电,2017(1):33-34.[17] GONG Wei-ping.Application of demolition blasting in the reinforcement of the chaersen reservoir[J].Water Resources & HydroPower of Northeast China,2017(1):33-34.(in Chinese)
[18] 李天凯,钱香海,杨海斌,等.抗洪抢险爆破施工与安全技术[J].工程爆破,2017,23(3):65- 67,85.[18] LI Tian-kai,QIAN Xiang-hai,YANG Hai-bin,et al.Blasting construction and safety technology of flood-fighting and rescue[J].Engineering Blasting,2017,23(3):65- 67,85.(in Chinese)
[2] 王民寿,王惠民.一起大型硐室爆破盲炮处理事故原因分析及处理方案[J].四川水力发电,2002,21(1):33-34,39.[2] WANG Min-shou,WAGN Hui-min.Cause analysis and treatment plan of a large chamber blasting misfiring accident[J].Sichuan Water Power,2002,21(1):33-34,39.(in Chinese)
[3] 周浩仓.拆除爆破产生盲炮的原因与处理[J].采矿技术,2018,18(1):81- 83.[3] ZHOU Hao-cang.Cause and treatment of misfiring in demolition blasting [J].Mining Technology,2018,18(1):81- 83.(in Chinese)
[4] 汪旭光.爆破设计与施工[M].北京:冶金工业出版社,2012.
[5] 刘娟.小型洞室爆破施工技术的具体应用[J].水利规划与设计,2017(2):142-145.[5] LIU Juan.Concrete application of small-scale chamber blasting construction technology [J].Water Resources Planning and Design,2017(2):142-145.(in Chinese)
[6] 陈绍潘.高效低耗定向抛掷硐室爆破新技术[J].福建建设科技,2007(1):36-38.[6] CHEN Shao-pan.New technology of high efficiency and low consumption directional throwing chamber blasting [J].Fujian Construction Science & Technology,2007(1):36-38.(in Chinese)
[7] 耿尧瑜,程涛,田运生,等.露天深孔爆破导爆管起爆网路盲炮事故树分析[J].工程爆破,2018,24(1):78-83.[7] GENG Yao-yu,CHENG Tao,TIAN Yun-sheng,et al.Fault tree analysis of misfire in surface deep hole blasting with nonel initiation network[J].Engineering Blasting,2018,24(1):78-83.(in Chinese)
[8] 刘美山,李丹,彭翠玲,等.大型水电站导流洞围堰拆除爆破关键问题分析[J].爆破,2006,23(2):80-84.[8] LIU Mei-shan,LI Dan,PENG Cui-ling,et al.Analysis of key problems of explosive demolition for cofferdam of water conveyance tunnel on large hydropower station[J].Blasting,2006,23(2):80-84.(in Chinese)
[9] 李伟.岩滩水电站扩建工程进水口围堰拆除爆破技术[J].技术与市场,2017,24(8):107-108,110.[9] LI Wei.Demolition blasting technology for cofferdam of intake of yantan hydropower station extension project[J].Technology and Market,2017,24(8):107-108,110.(in Chinese)
[10] 张斌,李凯.复杂条件下大体积复合围堰拆除爆破设计[J].云南水力发电,2017,33(2):84-87.[10] ZHANG Bin,LI Kai.Demolition blasting design of large-volume composite cofferdam under complicated conditions[J].Yunnan Water Power,2017,33(2):84-87.(in Chinese)
[11] 张忠伟,任舸,李洪涛.锦屏二级水电站导流隧洞进口围堰拆除爆破[J].爆破,2011,28(4):77-80.[11] ZHANG Zhong-wei,REN Ge,LI Hong-tao.Explosive demolition of intake cofferdam of diversion tunnel on Jingping Ⅱ Hydropower Station[J].Blasting,2011,28(4):77-80.(in Chinese)
[12] 高尚,华天波,李洪涛,等.热电厂取水泵房拱围堰拆除爆破[J].工程爆破,2017,23(1):46-50.[12] GAO Shang,HUA Tian-bo,LI Hong-tao,et al.Demolition blasting of arch cofferdam in water intake pump room of thermal power plant[J].Engineering Blasting,2017,23(1):46-50.(in Chinese)
[13] 程贵海,陈善江,胡华瑞,等.大型孔外延时拆除爆破网路可靠性研究[J].中国矿业,2018,27(4):142-146.[13] CHENG Gui-hai,CHEN Shang-jiang,HU Hua-rui,et al.Study on the reliability of jarge-scale outer-holes blasting demolition network[J].China Mining Magazine,2018,27(4):142-146.(in Chinese)
[14] 赵中宇,梁向前,温新平.禹门口扩建泵站岩坎爆破拆除与安全控制[J].工程爆破,2017,23(4):82-85.[14] ZHAO Zhong-yu,LIANG Xiang-qian,WEN Xin-ping.Blasting demolition and safety control for rock ridge of yymenkou extension pumping station[J].Engineering Blasting,2017,23(4):82-85.(in Chinese)
[15] 马超峰,刘强.围堰拆除控制性爆破设计及安全控制[J].湖南水利水电,2018(2):65-68.[15] MA Chao-feng,LIU Qiang.Design and safety control of controlled blasting for cofferdam demolition[J].Hunan Hydro & Power,2018(2):65-68.(in Chinese)
[16] 蔡彬,姚巍,周维.黄登水电站导流洞进口围堰拆除爆破[J].云南水力发电,2017,33(2):91-93.[16] CAI Bin,YAO Wei,ZHOU Wei.Demolition blasting of intakes of cofferdam of diversion tunnel of Huangdeng Hydropower Station[J].Yunnan Water Power,2017,33(2):91-93.(in Chinese)
[17] 巩维屏.拆除爆破在察尔森水库除险加固中的应用[J].东北水利水电,2017(1):33-34.[17] GONG Wei-ping.Application of demolition blasting in the reinforcement of the chaersen reservoir[J].Water Resources & HydroPower of Northeast China,2017(1):33-34.(in Chinese)
[18] 李天凯,钱香海,杨海斌,等.抗洪抢险爆破施工与安全技术[J].工程爆破,2017,23(3):65- 67,85.[18] LI Tian-kai,QIAN Xiang-hai,YANG Hai-bin,et al.Blasting construction and safety technology of flood-fighting and rescue[J].Engineering Blasting,2017,23(3):65- 67,85.(in Chinese)
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