一种水下控制爆破及开挖基础孔方法

在水下建筑工程中，往往采用围堰断流的方法，完成后再把围堰拆除，但有些工程不允许或无法断流，因而水下爆破开挖是人们关注和研究的课题。本文介绍温州瓯江泵站进水口扩建工程，即在不停水的情况下，完成爆破清碴，基础孔开挖的工程实例。

The Method of Underwater Controlled Blasting and Basal Hole Excavating

During the underwater architectural engineering, it is always used the method of cofferdam damming, and then demolish the cofferdam late. But some projects can not be able to dam, so underwater controlled blasting is the subject concerned and research by people. This paper introduces the water inlet expansion project of Wenzhou Ou River pumping station. Namely, on the condition of not damming, it is completed the project of blasting,spoil removing and the basal hole excavating.