作为岩土工程的专业必修课，土力学课程具有基础性、时代性和实践性的特点。研究生需求量及数量的增加，对土力学的理论性和专业性也提出了更高的要求。因此，在已有课程内容的基础上，有必要进一步开展教学探索。参考已有土力学课程教学经验，联系土力学中"土的抗剪强度"与高等土力学中"土的本构关系"，以介绍土的临界状态为重点，补充必要的三轴试验和土的性质相关知识点。以砂土临界状态分析为例，辅以微生物加固钙质砂研究，介绍了如何扩展土力学知识点，如何引入本学科的研究前沿，通过教学探索，帮助学生理解和巩固基础理论知识，激发和培养学生自主学习的兴趣和能力，为继续深造创造良好的基础条件。

Soil mechanics course has the characteristics of basic, epochal character and practicalness as a required course for geotechnical engineering. At present, the increasing demand and number of graduate students put forward higher requirements for theory and professionalism of soil mechanics. Therefore, it is necessary to carry out teaching exploration to expand the depth and breadth on the basis of the existing course content. Based on the teaching experience in soil mechanics, "shear strength of soil" in soil mechanics and "constitutive relation of soil" in advanced soil mechanics were connected. Focusing on introducing the critical state of soil, key points related to triaxial tests and soil properties were necessarily supplemented. The critical state analysis of sand soil was provided as an example, and the research on "microbial reinforced calcareous sand" was given as an aid. This paper introduced how to expand the study points of soil mechanics and how to introduce the subject frontiers. This helps the students understand and consolidate the basic theoretical knowledge, stimulate and cultivate students’ interest and ability in independent learning, and create good basic conditions for further study.

G642.3;TU43

国家自然科学基金优秀青年科学基金项目（51922024）