前言本文是阐述土壤的挖掘,其主要内容包括研究挖掘阻力特性及推导方法,给土壤挖掘阻力下定义,然后详述切削比阻R_s,并说明在旱地上挖掘跟在水中挖掘的差异,最后对模型实验和实物实验的相似定律加以研究。 Preface This paper describes the soil excavation, the main contents include the study of mining resistance characteristics and derivation methods, the definition of soil resistance to excavation, and then detail the cutting resistance R_s, and explain the difference between mining and dry mining in the water, and finally Model experiment and physical experiment similar laws to be studied.