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在渡口工业区建设中经常遇到挡墙问题,以往,大部分沿用传统的重力式挡墙。重力式挡墙圬工量大、造价高,尤其是块石挡墙,劳动强度大又费工。我们于1978年提出了一种新型的薄壁支挡结构——折板挡墙,并先后对五项实际工程做了设计,总长500米,支挡高度2.2～6.75米,其中有一项采用了预应力折板,目前均已建成使用。此外,北京市市政工程研究所等单位在1979年了解了渡口折板挡墙试验研究情况后,于1980年在北京东便门立交道路工程中,修建了一座长345米、高度1.8～4.8米的折板挡墙。
In the construction of the ferry industrial area, the problem of retaining walls is often encountered. In the past, most of them used traditional gravity retaining walls. Gravity-type retaining walls have a large volume of work and high construction costs, especially block-stone retaining walls, which are labor-intensive and labor-intensive. In 1978, we proposed a new type of thin-walled retaining structure, the folded-plate retaining wall, and designed five practical projects. The total length was 500 meters and the retaining height was 2.2 to 6.75 meters. One of them was adopted. Prestressed folding plates are currently used. In addition, in 1979, the Beijing Municipal Engineering Institute and other organizations learned about the experimental research of the ferrule folding plate retaining wall. In 1980, a 345-meter-long, 1.8-4.8-meter-high building was built in the Dongbeimen interchange road project in Beijing. Folding plate retaining wall.