Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of solid waste light soil rail transit vibration isolation structure
The invention belongs to the field of civil engineering, and particularly relates to a construction method of a solid waste light soil rail transit vibration isolation structure. The method comprises the steps that a foundation trench is excavated according to the preset elevation, and measurement, positioning and paying-off, mechanical crushing, excavation and manual foundation cleaning are conducted in sequence; paving broken stone hardcore layers on the base in two layers, and rolling and leveling the broken stone hardcore layers by using a bulldozer; solid waste light soil is adopted for stepped pouring construction, and a multi-layer solid waste light soil roadbed is formed; an anti-freezing water-resisting layer and a graded broken stone layer are sequentially laid on the top of the solid waste light soil roadbed, a pavement structure layer is constructed, and solid waste light soil roadbed construction is completed; a trapezoidal groove is excavated to the designed elevation in the extending direction of the solid waste light soil roadbed, and a polyurethane vibration isolation pad is laid on the inclined face of the groove; a connector pipe is hung in the groove, and solid waste light soil is poured in a layered and partitioned mode; and after the solid waste light soil is finally set, the connector pipes are pulled out, pipe holes are backfilled with the solid waste light soil, and the solid waste light soil vibration isolation wall is formed. The solid waste light soil roadbed filler used in the invention has the advantages of light weight, high strength, economy, environmental protection and strong vibration isolation performance, and can significantly reduce the overlying load of a soil layer, thereby significantly reducing roadbed settlement and track deformation, reducing vibration strength from a vibration source, and effectively preventing vibration waves from being transmitted downwards; after the vibration waves are transmitted to the solid waste light soil vibration isolation wall, the vibration waves are subjected to multiple reflection attenuation, and vibration is relieved in the propagation process; the double vibration reduction effects of the solid waste light soil roadbed and the vibration isolation wall can remarkably inhibit the vibration response induced by the rail transit.
本发明属于土木工程领域，具体涉及一种固废轻质土轨道交通隔振结构的施工方法。步骤为：按预设标高开挖基槽，依次进行测量定位放线、机械破碎、开挖和人工清基底；在基底分两层铺设碎石垫层，并用推土机碾压整平；采用固废轻质土以台阶式浇筑施工，形成多层级的固废轻质土路基；在固废轻质土路基顶部依次铺设防冻隔水层和级配碎石层，施工路面结构层，完成固废轻质土路基施工；沿固废轻质土路基延伸方向开挖呈梯形沟槽至设计标高，在沟槽倾斜面上铺设聚氨酯隔振垫；在沟槽内吊放接头管，分层、分区浇筑固废轻质土；待固废轻质土终凝后拔出接头管，对管孔回填固废轻质土，形成固废轻质土隔振墙。本发明使用的固废轻质土路基填料具有轻质、高强、经济环保、隔振性能强的优点，可显著减轻土层上覆荷载，从而显著减小路基沉降和轨道变形，从振源处减轻振动强度，并能有效阻止振动波向下传递；振动波传递至固废轻质土隔振墙后，经历多重反射衰减，在传播过程中减轻振动；固废轻质土路基和隔振墙的双重减振效果可显著抑制轨道交通诱发的振动响应。
Construction method of solid waste light soil rail transit vibration isolation structure
The invention belongs to the field of civil engineering, and particularly relates to a construction method of a solid waste light soil rail transit vibration isolation structure. The method comprises the steps that a foundation trench is excavated according to the preset elevation, and measurement, positioning and paying-off, mechanical crushing, excavation and manual foundation cleaning are conducted in sequence; paving broken stone hardcore layers on the base in two layers, and rolling and leveling the broken stone hardcore layers by using a bulldozer; solid waste light soil is adopted for stepped pouring construction, and a multi-layer solid waste light soil roadbed is formed; an anti-freezing water-resisting layer and a graded broken stone layer are sequentially laid on the top of the solid waste light soil roadbed, a pavement structure layer is constructed, and solid waste light soil roadbed construction is completed; a trapezoidal groove is excavated to the designed elevation in the extending direction of the solid waste light soil roadbed, and a polyurethane vibration isolation pad is laid on the inclined face of the groove; a connector pipe is hung in the groove, and solid waste light soil is poured in a layered and partitioned mode; and after the solid waste light soil is finally set, the connector pipes are pulled out, pipe holes are backfilled with the solid waste light soil, and the solid waste light soil vibration isolation wall is formed. The solid waste light soil roadbed filler used in the invention has the advantages of light weight, high strength, economy, environmental protection and strong vibration isolation performance, and can significantly reduce the overlying load of a soil layer, thereby significantly reducing roadbed settlement and track deformation, reducing vibration strength from a vibration source, and effectively preventing vibration waves from being transmitted downwards; after the vibration waves are transmitted to the solid waste light soil vibration isolation wall, the vibration waves are subjected to multiple reflection attenuation, and vibration is relieved in the propagation process; the double vibration reduction effects of the solid waste light soil roadbed and the vibration isolation wall can remarkably inhibit the vibration response induced by the rail transit.
本发明属于土木工程领域，具体涉及一种固废轻质土轨道交通隔振结构的施工方法。步骤为：按预设标高开挖基槽，依次进行测量定位放线、机械破碎、开挖和人工清基底；在基底分两层铺设碎石垫层，并用推土机碾压整平；采用固废轻质土以台阶式浇筑施工，形成多层级的固废轻质土路基；在固废轻质土路基顶部依次铺设防冻隔水层和级配碎石层，施工路面结构层，完成固废轻质土路基施工；沿固废轻质土路基延伸方向开挖呈梯形沟槽至设计标高，在沟槽倾斜面上铺设聚氨酯隔振垫；在沟槽内吊放接头管，分层、分区浇筑固废轻质土；待固废轻质土终凝后拔出接头管，对管孔回填固废轻质土，形成固废轻质土隔振墙。本发明使用的固废轻质土路基填料具有轻质、高强、经济环保、隔振性能强的优点，可显著减轻土层上覆荷载，从而显著减小路基沉降和轨道变形，从振源处减轻振动强度，并能有效阻止振动波向下传递；振动波传递至固废轻质土隔振墙后，经历多重反射衰减，在传播过程中减轻振动；固废轻质土路基和隔振墙的双重减振效果可显著抑制轨道交通诱发的振动响应。
Construction method of solid waste light soil rail transit vibration isolation structure
一种固废轻质土轨道交通隔振结构的施工方法
LIU SONGYU (Autor:in) / LI MENGYAO (Autor:in) / ZHANG YUHAO (Autor:in) / WANG ZHENGCHENG (Autor:in) / ZHANG XIANG (Autor:in)
01.11.2024
Patent
Elektronische Ressource
Chinesisch
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