有机玻璃-空气隔层结构对水下爆炸能量输出的影响

采用“弯矩逐段解体法”沿建筑物的对角线方向爆破的方法 ,成功地拆除了一栋七层框架结构大楼。文中对沿对角线方向倾倒与平行于梁的方向倾倒的受力情况进行了对比 ,并对沿对角线方向倾倒时梁的受力情况进行了详细分析。此外 ,对爆破参数和网路设计以及安全技术作了论述。

COMPREHENSIVE APPLICATION OF CONTROLLED BLASTING IN BUILDING DEMOLITION

Two frame buildings,No.1 and 2,are arranged in a line and separated by 7 meters.Because of limited environmental conditions,sequential collapsing to the west is merely permitted.The staircase located in the western end of the building No.2 is separated from main structure by a construction joint,becoming a separated structure with a large proportion of height to width.In the light of different features of the constructions to be demolished,the different measures of controlled blasting are adopted.The box-shape basement and surficial structure of the building No.1 are simultaneously demolished by blasting method.Through selecting reasonable cut height and suitable delayed interval,the building No.1 and the main structure of the building No.2 collapse sequentially to predetermined direction and the staircase collapses on the broken pile of the building No.1.