The post-grouting technology of bored pile is to press cement slurry around and at the end of pile after the concrete reaches the predetermined strength,and to improve the bearing capacity of pile foundation by changing the interaction between pile and soil.This paper first introduces the mechanism of post-grouting technology of bored pile,and then,based on the project of Benxi to Huan-ren(border of Liaoning and Jilin)section of Benxi to Ji'an Expressway in Shenyang area,introduces the construction technology of post-grouting technology of bored pile in detail,including grouting equipment,grouting device production,grouting device installation and slurry configuration,emphasizing the key points of grouting construction technology.The treatment methods of common construction ac-cidents are also put forward.
维普
万方数据