Experimental Study on Base Piles Bearing Capacity of Qilu Yellow River Bridge

Qilu Yellow River Bridge is located in Jinan City, Shandong Province. The main bridge adopts bored pile foundation with high design bearing capacity. In order to ensure that the bearing capacity of single pile meets the requirements and ensure the safety of the bridge, the double load boxes O-cell test pile method is used to test the bearing capacity of pile before and after grouting. According to the soil layer property around pile, the double load boxes can be loaded optionally and solve the problems in the tradition pile test. The bearing capacity of each pile section is determined. The bearing capacity of pile before grouting is 75255kN, the bearing capacity of pile after grouting is 89100 kN.

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