Leaching tests were conducted and a conclusion was drawn that the change of unconfined compressive strength of clay taken from Guizhou is relevant to the goethite content of clay.

• 基于量子化学和结构化学理论，通过试验和计算得出红黏土胶结本质及微观结构模型参数，并建立该黏土无侧限抗压强度与针铁矿质量之间的定量关系。