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本文介绍港工混凝土强度验收试行标准有关条文的修改,并用等概率线分析了新修订条文的检验效果。对港工系统二百余个工程的混凝土强度数据,按新修订条文,原试行标准,以及国家标准GBJ10—65第134条规定进行了统计验算,同时绘制了抽样特性曲线。通过比较认为:新修订条文基本适应目前港工系统的施工水平,对结构物的安全保证比试行标准更为可靠。
This article introduces the revision of the relevant provisions of the Hong Kong-Ground Concrete Strength Acceptance Trial Standard, and analyzes the test results of the new revised provisions with the use of equal probability lines. For the concrete strength data of more than two hundred projects of the Hong Kong Workers’ System, statistical examinations were carried out according to the new revised provisions, the original trial standards, and the national standard GBJ10-65, Article 134, and the sampling characteristic curve was drawn. Through comparison, it is believed that the new revised provisions are basically adapted to the current level of construction of the Hong Kong industrial system and that the safety guarantees for the structures are more reliable than the trial standards.