赵中宇,梁向前,温新平
ZHAO Zhong-yu,LIANG Xiang-qian,WEN Xin-ping

• 1:山西省水利建筑工程局
• 2:中国水利水电科学研究院

摘要(Abstract)：

针对禹门口黄河提水工程中扩建泵站预留岩坎爆破拆除难度较大的情况,采用深孔爆破和预裂爆破相结合、高精度塑料导爆管雷管延时起爆的爆破技术,钻孔分角度布孔,岩坎分区单耗,爆破总药量3 633kg,总方量3 500m~3;综合炸药单耗1.04kg/m~3,控制最大单响药量24kg。岩坎爆破从中部开口起爆,地表传爆雷管孔间、排间延时为17、25、65ms,保证每个炮孔按照延时起爆不重段,实现了精准爆破。采取严格周密的安全防护措施和振动监测,爆破过程中未见飞石和涌浪,各建筑物实测振速均小于安全标准,保障了一级泵站、扩建泵站、周围交通设施的安全。岩坎爆破拆除取得成功,爆破效应得以有效控制,设计参数和控制标准可供类似工程参考。
In order to solve the difficulty of rock ridge blasting demolition in the expansion pumping station of Yumenkou Yellow River water lifting project,deep hole blasting and pre-splitting blasting and high precision plastic detonator delay initiation blasting technology was used.The holes were distributed in various directions to consume the rock ridge in seperated regions.The total charge quantity was 3 633 kg,maximum single pear charge quantity was 24 kg.The total volume was 3 500 m~3,comprehensive explosive unit consumption was 1.04kg/m~3.The rock ridge was blasting from the central opening.The delay times between the hole and rows was 17,25 and 65ms.The safe protection measures and vibration monitoring were adopted in the project.There was no flyrocks and surging in the blasting process and measured vibration velocity of building was 1 ess than the safety standards.The technology and measures provided safety for pumping station and surrounding traffic facilities.The success of rock ridge blasting is achieved,and blasting effect is effective controlled.The result can provide a reference for similar engineering.

关键词(KeyWords)： 禹门口泵站;岩坎拆除;爆破设计;安全控制
Yumenkou pumping station;rock ridge demolition;blasting design;safety control

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 赵中宇,梁向前,温新平
ZHAO Zhong-yu,LIANG Xiang-qian,WEN Xin-ping

参考文献(References)：

• [1]赵峰,杜申伟,袁桂兰.禹门口一级提水泵站岩坎围堰拆除控制爆破设计[J].武汉水利电力大学学报,2000,33(6):50-52.ZHAO F,DU S W,YUAN G L.Design of removal and controlled blasting for rock cofferdam of Yumenkou cascade 1water-lifting pumping station[J].Journal of Wuhan University of Hydraulic and Electrical Engineering,2000,33(6):50-52.
• [2]汪旭光,郑炳旭,张正忠,等.爆破手册[M].北京:冶金工业出版社,2010.WANG X G,ZHENG B X,ZHANG Z Z,et al.Handbook of blasting[M].Beijing:Metallurgical Industry Press,2010.
• [3]国家安全生产监督管理总局.爆破安全规程:GB 6722-2014[S].北京:中国标准出版社,2015.State Administration of Work Safety.Safety regulations for blasting:GB 6722-2014[S].Beijing:China Standards Press,2015.
• [4]张正宇,张文煊,吴新霞,等.现代水利水电工程爆破[M].北京:中国水利水电出版社,2003.ZHANG Z Y,ZHANG W X,WU X X,et al.Modern water resources and hydropower engineering blasting[M].Beijing:China Water&Power Press,2003.
• [5]梁向前.水下爆破技术[M].北京:化学工业出版社,2013.LIANG X Q.Underwater blasting technology[M].Beijing:Chemical Industry Press,2013.