The practice of hydraulic blasting demolishing the pool of water tower while directionally blasting the water tower is introduced.A new T-type notch was utilized in the directional blasting.

• 介绍了在水塔定向爆破的同时对预拆水塔的水箱进行水压爆破的实践，定向爆破采用了新型切口“T”型切口。