Construction Technology of Pile Hole for Shanghai-Chengdu High Speed Railway Overpassing Hanjiang Super-long Bridge

Abstract:

The paper introcuced the drilling construction technology of Shanghai-Chengdu high speed railway in karst strutum, together with the equipments selection, technical parameters determination and the treatment & prevention for commom accidences of drilling construction in such strutum.

Key words:karst strutum; bridge pile; pile hole; percussive reverse circulation