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1.历史背景: 基岩的强度在技术人员中间作为话题来谈论,还是最近不久的事情。就是说,自古以来对于土木结构物基础地基的变形、承载力一直试作力学性探索的主要属于土力学的范筹。基岩这一概念,即作为刚性大而坚硬的地基、无条件地被采纳为土木结构物的基础地基的时代还是不久的事。不过,以第二次世界大战的结束为转机,全世界就进入经济稳定增长的时代。作为能源的水力、火力和原子能发电等土木结构物或桥梁、隧道等公共土木设施的开发就变得突飞猛
1. Historical background: The strength of bedrock is discussed as a topic among technicians, and it is a recent thing. That is to say, since ancient times, the deformation and bearing capacity of the foundation of civil engineering structures have been tried as a mechanical exploration, which mainly falls into the category of soil mechanics. The concept of bedrock, that is, the foundation as a rigid and hard foundation, and the unconditional adoption of the foundation of civil engineering structures, is still a short time. However, with the turn of the Second World War as a turning point, the world has entered an era of steady economic growth. The development of civil engineering structures such as hydropower, firepower, and atomic power as energy sources, or public infrastructure such as bridges, tunnels, etc.