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1991年1月29~31日,铁道部建设司标准科情所在北京主持召开了膨胀土判别与分类问题规范协调会。建设司,工程总公司,第一、二、三、四勘测设计院,铁道部科学研究院西北科研所,西南交通大学等单位的代表,共计23人参加了会议。膨胀土对铁路工程具有严重的潜在破坏作用,在工程实践中,首要的问题就是对土的判
From January 29 to January 31, 1991, the Beijing Municipal Bureau of Standards and Standards for Construction of the Ministry of Railways hosted the normative coordination meeting on identification and classification of expansive soils. Construction Division, Engineering Corporation, 1, 2, 3, 4 Survey and Design Institute, Northwest Research Institute of the Ministry of Railways, Southwest Jiaotong University and other units, a total of 23 people attended the meeting. Expansive soil on the railway project has a serious potential for damaging the role of engineering practice, the primary issue is the soil of the sentence