砾卵石层中桩底灌浆钻孔灌注桩承载性质研究*

Abstract
Figure/Table
References (3)
Related Citation (15)

Download: PDF (2561 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Slurry drilling method is widely employed in pile construction. Sediments at base and clay slurry along hole shaft cannot be avoided in construction procedure with this method. Engineering practice proves that base sediments and slurry can severely reduce the pile’s bearing capacity and increase the settlement of the bored cast-in–situ piles. Based on the results of the field experiments，the bearing features of cast-in-situ bored piles with grouted toe in gravel bearing stratum are analysed. It is pointed out that the friction of cast-in-situ bored piles (lenth/diameter ratio of 54.1～57.1) with grouted toe in gravel bearing stratum is three times of that of the commom bored piles. The settlement of the bored cast-in-situ piles with grouted toe can be largely decreased. Most of deformation of bored cast-in-situ piles with grouted toe is elastic，and residual deformation is quite small. The experiment results can give some references to pile construction and design.

Key words： geotechnics cast-in-situ bored piles slurry drilled method base grouting axial bearing feature

Received: 01 March 2003

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/ OR https://rockmech.whrsm.ac.cn/EN/Y2003/V22/IS2/2903