铁道部西南交通大学、原铁道部第三勘测设计院标准处(现专业设计院标准处)和四川省建筑研究所于1975年底至1976年初,在四川峨眉进行锚定板挡墙模型试验,找到了这种结构受力状态的一些规律,从而提出了群锚的概念。为了验证这一概念和设计理论,将北京铁路枢纽西北环线一段重力式挡墙改为锚定板挡墙,进行试点。在工程施工前,先作了1/8比例的模型试验。根据这次和在峨眉所作的二次 Ministry of Railways Southwest Jiaotong University, the former Ministry of Railways Survey and Design Institute of the third standard (now Professional Design Institute Standards Office) and Sichuan Institute of Architectural Research from late 1975 to early 1976, anchored plate retaining wall model test in Emei, Sichuan, find The structure of the state of some of the laws of force, thus proposed the concept of group anchors. In order to verify this concept and design theory, a section of gravity retaining wall on the north-west loop of Beijing Railway Hub was changed to an anchoring plate retaining wall for pilot projects. Before the construction, first make a 1/8 ratio model test. According to this time and in Emei made twice