Title: Numerical simulation of pressure-type anchor based on energy principle
Abstract: According to the energy principle,the formulae for axial force and displacement are derived.The shear stress between grout and soil is computed by use of the elastic-plastic shear displacement model,and soil unloading because of large displacement is taken into consideration.An application method of the principle of the minimun potential energy in pressure-type anchor problem is presented.The solution to the energy equation is given.Through a case,the distribution of axial force,shear stress and displacement of pressure-type anchor under various load levels is analyzed,load-displacement curve is discussed,and the ultimate anchorage length is computed.The conclusion are:① the pressure-type anchor is mainly in elastic state under most load levels,and it will soon reach the ultimate bearing capacity once it enters the plastic state;② the anchorage body energy transfer theory,which takes soil unloading into consideration,gives an explanation of the ultimate anchorage length of pressure-type anchor.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 2
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