试爆在新烟囱爆破拆除中的应用  

THE APPLICATION OF TEST BLASTING IN NEW CHIMNEY BLASTING DEMOLITION

作　　者：和铁柱 池恩安 赵明生 陈斌 

机构地区：[1]贵州新联爆破工程集团有限公司,贵阳550002 [2]毕节新联爆破工程有限公司,贵州毕节551700

出　　处：《工程爆破》2014年第2期32-35,共4页Engineering Blasting

基　　金：贵州科技计划项目(SY2010365)

摘　　要：新烟囱爆破拆除前的试爆效果表明爆破设计方案及参数达不到预期要求,分析发现烟囱内壁有强度较高的耐火砖。根据烟囱结构和材质强度,合理地调整爆破方案和爆破参数,如增加单孔装药量,在烟囱切口内壁增设药龛,使用内壁裸露爆破辅助主孔爆破等,取得了理想的爆破效果。Test blasting effect before blasting demolition of the new chimney showed that the blasting plan and parameters could not accord with the demand. Through the analysis, the high strength of refrac- tory brick on the innerwall of the chimney was found. According to the actual structure and material strength, blasting programs and blasting parameters were adjusted appropriately, such as increasing the single-hole charge volume, adding powder niches on the innerwall of the chimney incision, and using adobe blasting to assist main hole blasting. The ideal blasting effect was achieved.

关 键 词：爆破拆除 试爆 药龛 裸露爆破 

分 类 号：TU746.5[建筑科学—建筑技术科学]