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黑色路面设计的简化原理
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作者 高增礼 《长安大学学报(自然科学版)》 EI CAS 1977年第1期81-90,共10页
1963年,壳牌公司研究人员曾公布了柔性路面设计指南。壳牌公司的方法,是以多层体系的弹性理论解法和三层弹性体系的应力及变形的现有用表为基础的。多年以来,积累了大量的关于路面使用和沥青矿质材料性质方面实际性态的情报。在三次(196... 1963年,壳牌公司研究人员曾公布了柔性路面设计指南。壳牌公司的方法,是以多层体系的弹性理论解法和三层弹性体系的应力及变形的现有用表为基础的。多年以来,积累了大量的关于路面使用和沥青矿质材料性质方面实际性态的情报。在三次(1963和1967年在美国密西根州,1972年在伦敦)沥青混凝土路面设计国际代表会议的报告中,曾总结了已有的经验。壳牌公司法的进一步发展,应当是走向以理论上有根据的公式来代替经验关系。在近年来发表的路面结构与计算问题的论文中。 展开更多
关键词 动力弹性模量 厚度 沥青含量 矿质 柔性路面设计 材料层 马克当 路基土 结构层 沥青混凝土路面 沥青路面 压缩变形
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SPECIAL ISSUE: IMPORTANT ISSUES IN MARXIST PHILOSOPHICAL STUDIES IN CONTEMPORARY CHINA:The theory of question-oriented reflection and its contemporary significance
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作者 Ren Ping 《Social Sciences in China》 2008年第2期141-151,共11页
The critique of a premise and reflection on a question represent two different philosophical positions, and at the same time constitute two distinct routes by which contemporary philosophy has appeared on the scene. T... The critique of a premise and reflection on a question represent two different philosophical positions, and at the same time constitute two distinct routes by which contemporary philosophy has appeared on the scene. The critique of a premise, a discourse exercise aimed at the reconstruction of forms, is premised on a position of morphology. It obfuscates the real foundation of philosophy: all authentic philosophy originates from questions, and only the process of critical reflection on questions can provide an authentic context allowing philosophy's joumey into the depths. While philosophical discourse systems have always been distinguished by morphological construction, they have nontheless remained attempts at providing philosophical answers to questions posed by practice. Questions, as opposed to morphology, cannot but take precedence and be of a more fundamental nature. The theory of question-oriented reflection, as put forward by the Marxist revolution in philosophy, refers to the basic positions of the "theory of practice" and the "theory of the question." It stongly holds that philosophy in essence is about the logic of questions and answers and its real point is "to change the world;" sound premises for philosophical forms can be arrived at only through critical rethinking of the philosophy arising from questions and the questions posed by philosophy, and only on such premises can philosophical forms be properly constructed. 展开更多
关键词 theory of question-oriented reflection critique of the premise philosophical morphology approach of contemporary philosophy
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