江阴大桥摩擦失效嵌岩群桩传力机理的实测研究

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Abstract Taking the south tower piling-foundation scheme of Jiangyin Bridge as an example，a foundation scheme applied to high，heavy and large building in high slope is introduced. The 70 times of measured data for axial force of pile at 64 points show that this foundation scheme can ensure the vertical load of 1.2×106 kN transferred to foundation rockmass of 26 m under ground. Then, the stability of the shallow rock mass will not be influenced by the engineering load. The measured data still state that the pile of the tower is overloaded, and the overload is up to 35 percent. In addition，7 m below the surface of embedded-rock，the axial force of pile reduces 75 percent because the load taken by embedded-rock foundation dissipates fast to the surrounding rockmass.

Key words： Jiangyin bridge slope embedded-rock piling friction-lost treatment axial force of pile stress detector

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https://rockmech.whrsm.ac.cn/EN/Y2002/V21/I06/883