Experimental Study on the Position of Balanced Point of Large-Tonnage Pile with Self-Balanced Load Method in the Northwest Region

Abstract:

The self-balanced test technology has been widely applied in the eastern soft soil region for many years due to its economy and convenience. However, few engineering practices could be found in the northwest loess region. In this paper, self-balanced load tests were conducted in the large-tonnage piles of a bridge project in Gansu Province. The methods determining the position of pile balanced point were studied. The positions of balanced points of test piles were also simulated using Finite Element Method (FEM). The test results show that the self-balanced method has good applicability for loess in the northwest region. The pile side friction is fully exerted and the test data could be reasonable and reliable. Besides, the shortages of traditional empirical method could be made up for if FEM is adopted, which makes the accuracy of the balanced point position improve effectively and provide a reference for field trials.

• Periodical: Applied Mechanics and Materials (Volumes 580-583)
• Pages: 78-82
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.580-583.78
• Online since: July 2014
• Authors: Ying Xin*, Feng Yue, Ping Li, Gong Sheng Wang
• Keywords: Balanced Point Position, Large-Tonnage Pile, Loess Region, Self-Balanced Load Test

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