分离活动式替打的研制与应用

Development and Application of Separate and Movable Follower

东海大桥桩基工程施工中,由于各种复杂因素,致使打桩替打损坏率很高。为解决替打易损问题,在常规替打的基础上,根据其结构和工作原理,研制分离活动式替打。通过工程实践检验,其使用效果较好,可有效延长替打使用寿命,并提高打桩效率。

Due to various kinds of complicated factor, the damage ratio of follower is very high in the construction of pile foundation project of the Donghai-bridge. In order to solve the problem and on the basis of the conventional follower, the separate and movable follower are developed according the structure and working principles. It has been proved by the practice of the project that the effect of application is better, which can prolong the service life of follower and raise the effectiveness of pile driving.