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2月17、18日,部基建总局邀集部内外有关单位,对铁科院拟订的《大秦线重载铁路路基设计原则及标准》(以下简称《标准》)讨论稿进行了一次讨论。与会者着重讨论了重载铁路的特点及对路基的特殊要求。一致认为大秦线是我国第一条按重载设计的铁路,具有运量大(初期运量6000万吨,远期运量1亿吨)、密度高(列车最小间隔为8分钟)的特点。路基承受荷载及其重复作用增加,容易导致路基病害的产生。为了适应大秦线
On February 17 and 18, Ministry of Basic Construction invited the relevant units inside and outside the department to conduct a discussion on the discussion draft of “Design Principles and Criteria for Heavy-Duty Railway Subgrade on Da-Qin Line” (hereinafter referred to as “Standard”) formulated by ASTRI. Participants focused on the characteristics of heavy haul railway and the special requirements of subgrade. It was unanimously agreed that the Daqin Line is the first railway designed for heavy haul in China. It has the characteristics of large volume (initial capacity of 60 million tons and long-term capacity of 100 million tons) and high density (train minimum interval of 8 minutes). Roadbed to bear the load and increase its duplication, easily lead to roadbed disease. In order to adapt to the Daqin line