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In order to explore the grouting materials suitable for the fracture reinforcement of Jinsha soil site, three kinds of grouting materials were prepared by mixing calcined ginger nut, SH and inorganic mineral polymer with the test soil of Jinsha site. Through laboratory tests, the basic physical properties, mechanical properties and durability of various grouting materials were analyzed in detail. The results show that the inorganic mineral polymer grouting material has low shrinkage and can effectively fill the cracks. At the same time, its high flexural and compressive strength provides a reliable guarantee for improving the mechanical stability of earthen sites. Among the three grouting materials studied, the inorganic mineral polymer grouting material exhibits the best durability. Therefore, it is recommended to use inorganic mineral polymer grouting materials in the crack grouting reinforcement project of Jinsha soil site. The research results will provide useful guidance for the selection and application of crack grouting materials in soil sites under humid environment. [ABSTRACT FROM AUTHOR]