新白沙沱长江特大桥3号墩基础水下爆破施工

Underwater blasting construction of No.3 pier foundation of New White Sands Tuo Yangtze River Bridge

介绍了新白沙沱长江特大桥3号墩基础水下爆破施工工艺,并对钻孔展布就位、雷管安装布置方案进行了阐述,经监测发现采用水下爆破施工工艺有效地衰减了爆破施工对既有营业线桥梁产生的震动和水下冲击波,消除了对既有营业线桥梁的严重影响。

This paper described the New White Sands Tuo Yangtze River Bridge underwater demolition No. 3 pier foundation construction technol- ogy, drilling elaborated distribution in place, detonators installation layout program, found that the process by monitoring the effective attenuation blasting bridge on the existing business lines and underwater shock wave generated by shock, eliminating a serious impact on the existing business lines of the bridge.