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鉴于配筋混凝土砌块砌体结构具有与钢筋混凝土结构类似的受力性能,本文参照钢筋混凝土挡土墙的设计方法,介绍配筋混凝土砌块砌体挡土墙的设计方法,并提出了相应的构造措施。在湖南大学上下部共同工作实验室进行了1:1的配筋混凝土砌块砌体扶壁式挡土墙的受力性能试验,实测墙背土压力和钢筋应变。结果表明,配筋混凝土砌块砌体扶壁式挡土墙表现出良好的受力性能,能够有效抵抗侧向土压力。另外还介绍了配筋混凝土砌块砌体扶壁式挡土墙在两个边坡支护工程的试点应用情况。工程实践表明,配筋混凝土砌块砌体挡土墙作为一种新型挡土墙,不仅受力性能安全可靠,更能节约资源、保护环境、节省造价。目前,该新型挡土墙正在湖南省长沙至湘潭高速公路(复线)推广应用。
In view of the reinforced concrete block masonry structure with reinforced concrete structure similar to the force performance, this article refers to the design method of reinforced concrete retaining wall, introduced the reinforced concrete block masonry retaining wall design method and put forward corresponding Construction measures. In the upper and lower part of the joint lab in Hunan University carried out a 1: 1 reinforced concrete masonry retaining wall type retaining wall force performance test, the measured wall back earth pressure and steel strain. The results show that reinforced concrete masonry retaining wall retaining wall shows good stress performance and can effectively resist lateral earth pressure. In addition, the application of reinforced concrete block masonry retaining wall retaining wall in two slope supporting projects is also introduced. Engineering practice shows that reinforced concrete block masonry retaining wall as a new type of retaining wall, not only by the performance of the safe and reliable, more resource conservation, environmental protection and cost savings. At present, the new retaining wall is being applied in Changsha, Hunan Province to Xiangtan Expressway (double line).