Study on Vertical Load-Carrying Capacity of Post-Grouting Bored Piles
Source abstract
Abstract
The relationship between pile side frictional resistance and pile tip resistance and settlement is assumed to be ideal elastic–plastic. The load-transfer method is used to analyze the load-bearing characteristics of bored pile in actual projects, and the results are compared with static load test results to prove the reliability of the analysis method and its parameters, on the basis of which the bored piles are reinforced with grouting, namely, pile tip grouting, pile side grouting, and pile tip pile–side composite grouting, are analyzed. The results show that the pile tip grouting mainly improves pile tip resistance and has almost no effect on pile side frictional resistance; the pile side grouting improves pile tip resistance and pile side frictional resistance more significantly; and pile tip–pile side composite grouting improves pile tip resistance and pile side frictional resistance more significantly than the first two. The ultimate load-carrying capacity of the pile is increased by 19%, 49%, and 53% after the use of pile tip grouting, pile side grouting, and composite grouting respectively.
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Research context
OpenAlex topics: Geotechnical Engineering and Underground Structures · Grouting, Rheology, and Soil Mechanics · Geotechnical Engineering and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Civil Engineering and Architecture, Henan University, Kaifeng 475004, China
References (16)
Show source-provided references
1. Experimental study of effects of pile tip post grouting on bearing characteristics of large-diameter bored pile
2. Reliability analysis of bearing capacity of post-grouted bored piles
3. Enhancing the performance of large diameter piles by grouting
4. Post-grouting technique for piled foundation: Case history of Su-Tong Bridge
5. Zhai, D.Z., Zhou, F., Zhou, J.F., and Zhu, R. (2018). Experimental Study and Numerical Analysis on Bearing Characteristics of Large Diameter Ultra-Long Bored Piles with Post Grouting on the Tip and Side, Earth and Environmental Science. IOP Conference Series.10.1088/1755-1315/189/2/022024 ↗
6. Study on practical calculation method of bearing capacity and settlement of large diameter post-grouting bored pile
7. Load settlement relationship prediction for grouted pile based on load transfer function method
8. The action of soft clay along frictional piles
9. Bearing mechanism of piles
10. Analysis of vertical ultimate bearing capacity of piles controlled by settlement
11. Theoretical t-z curves10.1061/AJGEB6.0001207 ↗
12. Kezdi, A. (1957, January 12–24). The bearing capacity of pile and pile groups. Proceedings of the 4th International Conference on Soil Mechanics and Foundation Engineering, London, UK.
13. Compaction Grouting10.1061/JSFEAQ.0001911 ↗
14. Zou, J.F., Li, L., Yang, X.L., and Hu, Z.N. (2006). Mechanism analysis of fracture grouting in soil. Rock Soil Mech., 27, (In Chinese).
15. Kuang, J.Z. (2001). Geotechnical Grouting Theory and Engineering Examples, Science Press. (In Chinese).
16. ACI Committee 326 (1962). Shear and Diagonal Tension. ACI J. Proc., 59, 1–30.10.14359/7913 ↗