Analysis On The Reasonable Horizon Of Double Twisted Steel Wire Mesh For Asphalt Pavement Adding

The highway is the artery of national economy development, and the asphalt concrete pavement is one of the main form. When the pavement structure is damaged to to a certain degree or the minimum acceptable level, we need to improve the service level of road through the modification or repair. Except for case that the limited conditions must take the road to be rebuild, overlay technology reform measures is often used. Double stranded wire mesh is a new type of reinforcement material, reinforced asphalt layer can effectively reduce or delay the occurrence of cracks, and improve the high-temperature rutting resistance, and reduce the thickness of asphalt layer. By using three dimensional linear eight nodes reduced integral unit (C3D8R) to simulate layer surface, and using the method of equivalent the double stranded wire mesh is equivalent to a certain thickness of elastic composite material. Selecte the appropriate calculation parameters, this thesis study on the double twisted steel wire net reinforced layer, and the main contents are as follows:(1) When the wire mesh is located at the bottom of the paving layer, by changing the load size ? the thickness of the paving layer?the paving layer modulus?the modulus of old road and the horizontal force coefficient,we study on the bottom shear stress? tensile stress in the wire mesh,?wire mesh and the pavement layer force then conclude that the influence law of the parameters in the above factors on the pavement.(2) Considering when the old road is seam or seamless, analysis the principal stress and shear stress changes of the bottom of upon paving layer and the whole layer when the steel wire is in different reinforcement layer, which determined the reasonable reinforcement position with different functions.(3) To establish the model of the temperature loads on the double stranded wire mesh reinforced pavement, we analys on temperature stress for different horizon double stranded wire mesh reinforcement, and determine the double stranded wire mesh in the reasonable reinforcement layer under the action of temperature stress.