CAJ | 학술논문

针对复杂环境下连霍高速公路新安段游坟嘴跨线天桥爆破拆除工程 ,通过采用孔内延时、孔外数码电子雷管接力传爆网路 ,采取控制最大一次齐爆药量、加大爆破破碎度、减小爆破塌落最大块质量、增强桥下缓冲垫层等防护措施 ,有效控制了爆破振动和塌落振动的影响.爆破对周围建筑物及设施未产生影响 ;桥体垂直有序塌落 ,破碎均匀、钢筋混凝土脱离充分 ,为爆后快速清理提供了保证 ,可为类似工程提供参考.
침대복잡배경하련곽고속공로신안단유분취과선천교폭파탁제공정 ,통과채용공내연시、공외수마전자뢰관접력전폭망로 ,채취공제최대일차제폭약량、가대폭파파쇄도、감소폭파탑락최대괴질량、증강교하완충점층등방호조시 ,유효공제료폭파진동화탑락진동적영향.폭파대주위건축물급설시미산생영향 ;교체수직유서탑락 ,파쇄균균、강근혼응토탈리충분 ,위폭후쾌속청리제공료보증 ,가위유사공정제공삼고.
Aiming at the highway overbridge blasting demolition engineering ,the network of delays in holes and detonating by digital electronic detonator outside holes were adoptted. The protecting measures such as controlling the biggest explosive dosage once ,increasing blasting broken degree ,decreasing the big-gest blasting collapse mass weight ,and enhancing the cushion layer beneath the bridge were taken. The impact of the blasting vibration and collapsing vibration were controlled effectively. The buildings and fa-cilities around were not influenced. The body of the bridge collapsed fully and uniformly. The reinforced and concrete separated sufficiently. It guaranteed for the quick cleaning up after blasting and provided a reference for similar engineering constructions .