爆破
爆破
폭파
BLASTING
2014年
3期
114-117,131
,共5页
冷却塔%定向倾倒%爆破切口%参数设计%安全防护
冷卻塔%定嚮傾倒%爆破切口%參數設計%安全防護
냉각탑%정향경도%폭파절구%삼수설계%안전방호
cooling tower%directional collapse%blasting cut%parameter design%safety protection
介绍了永济市“上大压小”热电联产拆除工程中，在周围环境复杂的情况下，运用定向爆破技术拆除两座薄壁预制板拼接冷却塔和一座高支腿外循环冷却塔。针对薄壁拼接冷却塔自重小、结构单薄以及高支腿冷却塔重心高等特点，利用机械预拆除阶梯状大减荷槽、开设定向窗、环梁切口等措施，采用毫秒延期起爆和簇联接力复式网路，以及各种主动、被动安全防护，使爆破达到安全、经济、合理的目标。应用上述技术要点，成功拆除了三座特殊结构冷却塔。在复杂环境下特殊结构构筑物的爆破拆除工程中，做好试爆、预拆除环梁切口、减荷槽等工作对工程质量控制至关重要。
介紹瞭永濟市“上大壓小”熱電聯產拆除工程中，在週圍環境複雜的情況下，運用定嚮爆破技術拆除兩座薄壁預製闆拼接冷卻塔和一座高支腿外循環冷卻塔。針對薄壁拼接冷卻塔自重小、結構單薄以及高支腿冷卻塔重心高等特點，利用機械預拆除階梯狀大減荷槽、開設定嚮窗、環樑切口等措施，採用毫秒延期起爆和簇聯接力複式網路，以及各種主動、被動安全防護，使爆破達到安全、經濟、閤理的目標。應用上述技術要點，成功拆除瞭三座特殊結構冷卻塔。在複雜環境下特殊結構構築物的爆破拆除工程中，做好試爆、預拆除環樑切口、減荷槽等工作對工程質量控製至關重要。
개소료영제시“상대압소”열전련산탁제공정중，재주위배경복잡적정황하，운용정향폭파기술탁제량좌박벽예제판병접냉각탑화일좌고지퇴외순배냉각탑。침대박벽병접냉각탑자중소、결구단박이급고지퇴냉각탑중심고등특점，이용궤계예탁제계제상대감하조、개설정향창、배량절구등조시，채용호초연기기폭화족련접력복식망로，이급각충주동、피동안전방호，사폭파체도안전、경제、합리적목표。응용상술기술요점，성공탁제료삼좌특수결구냉각탑。재복잡배경하특수결구구축물적폭파탁제공정중，주호시폭、예탁제배량절구、감하조등공작대공정질량공제지관중요。
Two thin-wall prefabricated panel jointed cooling towers and a high legs cooling tower were demol-ished by directional collapsing blasting in Yongji power plant demolition engineering. The cooling towers were weight and thin,with high legs and complex environment. Many measures were applied,such as cutting the stair-stepping slot holes,excavating the directional windows and destroying the ring beams were taken. The delay initiation network, cross connection with group unit and enhanced protective measures were designed to keep safe,economic and reason-able. The techniques above were used to demolish three special construction cooling towers successfully. A conclusion was drawn that test explosion,cuts of ring beams and slot holes played very important role in the quality of demolition engineering.
