CAJ | 학술논문

观音岩水电站导流底孔出口围堰紧邻永久建筑物，导流底孔施工完成后，围堰爆破拆除可能对周边永久建筑物产生影响。为了保证周边建筑物在爆破拆除时的安全，分析了爆破拆除的控制难点，设计采用了松动爆破、布置防振孔切割爆破、定向爆破、冲击锤人工风镐凿除、建筑物遮盖防护等措施，降低了建筑物爆破的振动速度，控制了爆破飞石的距离，有效保护了周围永久建筑物的安全。爆破设计及施工经验可供类似工程设计施工参考。
관음암수전참도류저공출구위언긴린영구건축물，도류저공시공완성후，위언폭파탁제가능대주변영구건축물산생영향。위료보증주변건축물재폭파탁제시적안전，분석료폭파탁제적공제난점，설계채용료송동폭파、포치방진공절할폭파、정향폭파、충격추인공풍호착제、건축물차개방호등조시，강저료건축물폭파적진동속도，공제료폭파비석적거리，유효보호료주위영구건축물적안전。폭파설계급시공경험가공유사공정설계시공삼고。
The cofferdam of diversion bottom outlet of Guanyinyan Hydropower Station is immediately adjacent to some perma -nent structure and the blast demolition of the cofferdam after the completion of the diversion bottom outlet construction will proba -bly affect the safety of the structures .In order to ensure the safety of the surrounding structures , the difficult points of blast demo-lition control were analyzed and the measures such as loose blast , anti-vibration hole for cut-blasting , directional blasting , ex-cavating by percussion hammer and artificial pneumatic pick , structure covering were taken , which reduced the blast vibration ve-locity, controlled the flying distance of blasted stone and effectively protected the safety of the surrounding structures .