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玉溪引水工程2#支洞爆破地震波的有效控制
Effective Control of Blasting Seismic Wave on Yuxi Diversion Works 2# Branch Cave Construction
【摘要】 玉溪引水工程2#施工支洞施工中需采用爆破施工,爆破地震波可能对位于其上方的发电引水渠道产生损伤或影响.通过采取预裂爆破、布设减震孔、微差爆破、限制一次爆破最大起爆药量等有效措施,降低了爆破地震波对发电引水渠道的影响,保证了建筑物的安全运行,并达到了施工工期短、投资少的效果.
【Abstract】 Blasting construction is employed on Yuxi diversion works 2# branch cave construction.Blasting seismic wave may damage or affect electricity generating feed canal that lies above 2# branch cave.The pre-splitting blasting and installing damping holes and million-second blasting and limiting to section explosive amount are effective measures.The influence of blasting seismic ware on electricity generating feed canal is reduced.to ensure ensured structure move safely.It achierved the effect of shorter working days and less investment.
【关键词】 爆破地震波;
预裂爆破;
微差爆破;
震动强度;
【Key words】 blasting seismic wave; pre-splitting blasting; million-second blasting; vibration intensity;
【Key words】 blasting seismic wave; pre-splitting blasting; million-second blasting; vibration intensity;
- 【文献出处】 南昌工程学院学报 ,Journal of Nanchang Institute of Technology , 编辑部邮箱 ,2006年03期
- 【分类号】TV542
- 【下载频次】27