Frontiers of Structural and Civil Engineering
>> 2007,
Volume 1,
Issue 4
doi:
10.1007/s11709-007-0062-7
Analysis of effect of different construction methods of piles on the end effect on skin friction of piles
| 1.Shanghai Jianke Project Management Co. Ltd, Shanghai 200032, China; 2.Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; |
Available online: 2007-12-05
Next
Previous
Abstract
Based on the comparative analysis of end effect on skin friction of displacement-pile (driven pile), the end effect on skin friction of bored pile is studied. The end effect on skin friction between driven pile and bored pile is different and the end effect on skin friction of bored pile is reduce of skin friction in the soil layer adjacent to the pile end. The degradation degree of skin friction is deduced with the increase of the distance from pile end. The concept of additional mud cake formed by the effect of cushion at the bottom of borehole during pouring concrete is introduced to explain the mechanism of end effect on skin friction of the bored pile. The test results of post-grouting piles indicate that the post-grouting technique is an effective way to improve the end effect on skin friction of bored pile.
京公网安备 11010502051620号
