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(1)挡土墙初步设计!本年一月在北京召开的挡土墙标准设计会议讨论挡土墙标准设计原则(草案)及决定初步设计集中在北京专业院编制在案,挡土墙标准设计原则1960年2月15日经基建总局基技林(60)字0131号函批准专业院即通知各设计院派员前来进行初步设计,计第一、二两院各派来二人,第三、四院两院各来一人,专业院参加,共仝进行初步设计方
(1) Retaining wall preliminary design! The standard design principle for retaining wall (draft) was discussed in the retaining wall standard design meeting held in Beijing in January this year and the preliminary design was decided to focus on the preparation in the Beijing professional institute. Retaining wall standard The design principle was approved by the General Administration of Construction on the basis of the letter No. 0131 of Jijilin (60) No. 0131 of the General Administration of Infrastructure of the People’s Republic of China on February 15, 1960. The Design Institute informed the design institutes that they sent personnel to conduct preliminary design and counted two persons from each of the first and second houses. The third and fourth hospitals have one person from each hospital, and professional institutes participate in the joint design of the preliminary design.