Deep defects analysis and treatment of in-situ bored pile based on grouting technique

Author

Lv, Dawei

Author_Institution

Dept. of Transp. Eng., Henan Univ. of Urban Construstion, Pingdingshan, China

fYear

2011

fDate

15-17 July 2011

Firstpage

2063

Lastpage

2065

Abstract

In construction of pile foundation of a certain bridge main piers, in-situ bored piles with diameter 2000mm and length 37m were used. One of the piles was blocked with a second perfusion, and deep defects occurred. Considering above part of defect pile can not meet the design requirements, deep defects detection and treatment should be undertaken. Low strain dynamic test and core drilling method are used to take deep defects detection and treatment and grouting strengthening scheme is put forward. Results show that the method in this paper is feasible and effective and pile body strength and integrity can reach requirements.

Keywords

bridges (structures); dynamic testing; foundations; mechanical strength; bridge main piers; core drilling method; deep defect analysis; deep defect detection; deep defect treatment; grouting strengthening scheme; in-situ bored pile; low-strain dynamic test; pile body strength; pile foundation; Acoustics; Aggregates; Bridges; Concrete; Slurries; Soil; Strain; defect; drilling borehole; grouting reinforcement; in-situ bored pile;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5987379

Filename

5987379