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以北京地区某山区公路沿溪段路基防护工程为背景,对石笼挡土墙在山区公路中的应用进行研究,分析格宾网和石笼单体的力学性质,并对现场设计形式进行总结。研究结果表明,石笼挡墙的抗土压力能力小于重力式挡墙,墙体高度较大时,施工过程中容易遭到破坏。因此石笼挡墙在本工程应用中,应满足以下条件:地区石料充足,且不宜采取机械化施工;石笼挡墙宜分层灵活设置,且高宽比不宜超过2。
Taking the roadbed protection project in Yanxi section of a mountainous area in Beijing as a background, the application of gabion retaining wall in mountainous highway was studied. The mechanical properties of gabion mesh and gabion cage were analyzed and the form of site design was summarized . The results show that the anti-earth pressure capacity of the gabion retaining wall is less than that of the gravity retaining wall. When the height of the wall is relatively large, the construction process is easily damaged. Therefore, the gabion retaining wall should satisfy the following conditions in application of this project: There should be enough stone in the area and mechanized construction should not be adopted; the gabion retaining wall should be set in layers flexibly, and the aspect ratio should not exceed 2.