A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Double-layer drainage asphalt pavement pore structure attenuation law analysis method
The invention provides a double-layer drainage asphalt pavement pore structure attenuation law analysis method, belongs to the technical field of drainage asphalt pavements, and solves the problems that the secondary compaction of the double-layer drainage asphalt pavement by running wheel loads and upper and lower drainage asphalt structural layers of the double-layer drainage asphalt pavement are not considered after dust particle deposition in the existing double-layer drainage asphalt pavement pore attenuation research. A particle bed layer is generated by using discrete element software to serve as a double-layer drainage asphalt pavement combination model, then bonds are generated among aggregate particles to form bonding strength to serve as the double-layer drainage asphalt pavement combination model, kinematics setting is added to a wheel model, and finally, the attenuation law of the pore structure of the double-layer drainage asphalt pavement is explored through calculationin a DEM-MBD coupling mode. The method can be used for effectively analyzing the attenuation law of the pore structures of the upper and lower layers of the double-layer drainage asphalt pavement andthe influence of secondary compaction after the running wheel load acts on different amounts of deposited dust, and has important practical significance.
本发明提供了一种双层排水沥青路面孔隙结构衰减规律的分析方法，属于排水沥青路面技术领域，解决目前双层排水沥青路面孔隙衰变研究中未考虑在灰尘颗粒沉积后，行驶车轮荷载对双层排水沥青路面二次压实以及双层排水沥青路面上、下排水沥青结构层孔隙衰减规律问题。本发明使用离散元软件生成颗粒床层作为双层排水沥青路面组合模型，然后在集料颗粒间生成Bond键，形成粘结强度，作为双层排水沥青路面组合模型，然后对车轮模型添加运动学设置，最后通过DEM‑MBD耦合的方式计算来探究双层排水沥青路面孔隙结构衰减规律。该方法可有效分析行驶车轮荷载作用在不同量灰尘沉积后双层排水沥青路面上、下层孔隙结构衰变规律及二次压实的影响，具有重要的现实意义。
Double-layer drainage asphalt pavement pore structure attenuation law analysis method
The invention provides a double-layer drainage asphalt pavement pore structure attenuation law analysis method, belongs to the technical field of drainage asphalt pavements, and solves the problems that the secondary compaction of the double-layer drainage asphalt pavement by running wheel loads and upper and lower drainage asphalt structural layers of the double-layer drainage asphalt pavement are not considered after dust particle deposition in the existing double-layer drainage asphalt pavement pore attenuation research. A particle bed layer is generated by using discrete element software to serve as a double-layer drainage asphalt pavement combination model, then bonds are generated among aggregate particles to form bonding strength to serve as the double-layer drainage asphalt pavement combination model, kinematics setting is added to a wheel model, and finally, the attenuation law of the pore structure of the double-layer drainage asphalt pavement is explored through calculationin a DEM-MBD coupling mode. The method can be used for effectively analyzing the attenuation law of the pore structures of the upper and lower layers of the double-layer drainage asphalt pavement andthe influence of secondary compaction after the running wheel load acts on different amounts of deposited dust, and has important practical significance.
本发明提供了一种双层排水沥青路面孔隙结构衰减规律的分析方法，属于排水沥青路面技术领域，解决目前双层排水沥青路面孔隙衰变研究中未考虑在灰尘颗粒沉积后，行驶车轮荷载对双层排水沥青路面二次压实以及双层排水沥青路面上、下排水沥青结构层孔隙衰减规律问题。本发明使用离散元软件生成颗粒床层作为双层排水沥青路面组合模型，然后在集料颗粒间生成Bond键，形成粘结强度，作为双层排水沥青路面组合模型，然后对车轮模型添加运动学设置，最后通过DEM‑MBD耦合的方式计算来探究双层排水沥青路面孔隙结构衰减规律。该方法可有效分析行驶车轮荷载作用在不同量灰尘沉积后双层排水沥青路面上、下层孔隙结构衰变规律及二次压实的影响，具有重要的现实意义。
Double-layer drainage asphalt pavement pore structure attenuation law analysis method
一种双层排水沥青路面孔隙结构衰减规律分析方法
XU TAO (author) / XU JIE (author) / KONG CHENGWEI (author)
2020-12-15
Patent
Electronic Resource
Chinese
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