摘要
采用“开窗口(包括定向窗)、切钢筋、留支撑块”方法进行钢筋混凝土水塔定向爆破拆除,可增加爆破临空面,保证倒塌方向准确。对控制飞石、震动起到一定作用。但因承载截面减弱,必须进行稳定性计算,确保施工安全。同时还应进行倾复与抗倾复检算,以确定切口参数选择正确。
In the controlled demolition of a reinforced concrete water tower, the method consists of opening window (including directional window), cutting reinfovced bars, keeping strut pieces and then demolishing it totally,The method has many adventages——increased free surface, ensuring the tower to be collapsed in proper direction, controlled fly rocks and reduced vibration. For weakened area of load-bearing, steady ability should be calculated to ensure safety in construction practice.At the same time, it is necessary to examine overturn and anti-overturn to define cutting-mouth parameters correctly.
出处
《爆破器材》
CAS
北大核心
1992年第2期21-24,12,共5页
Explosive Materials
关键词
钢筋混凝土
水塔
定向爆破
拆除
directional blasting
reinforced concrete water tower
