漳州旧郭坑大桥的拆除施工

Dismantling Construction of Old Guokeng Bridge in Zhangzhou

福建省漳州旧郭坑大桥为空腹式等截面悬链线双曲拱桥,经综合评定,该桥属危桥,需拆除重建。介绍对该桥进行的拆除施工,即上部采用整桥孔拆除塌落至地面上清理,下部采用控制爆破拆除。采用的施工方案实用、合理、简单,拆除工作较为顺利。

The old Guokeng Bridge in Zhangzhou, Fujian Province is an open spandrel, catenarian two-way curved arch bridge with constant sections. After comprehensive evaluation, the Bridge is defined as a dangerous bridge that should be dismantled and reconstructed. In this paper, the construction of dismantling of the Bridge is presented, specifically the full span of the superstructure of the Bridge is dismantled to let it collapse onto ground where the dismantled parts are then removed, and the substructure is dismantled by controlled blasting. The eonstruction scheme adopted for the dismantling is practical, reasonable, simple and the construction is smooth.