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In order to alleviate the contradiction between people and land, improve the quality of cultivated land and the ecological environment of the land, this paper studied the sand-fixing characteristics of soft rock by indoor experiments and promoted the field. The results showed that the complementarity of the soft rock and sand in the particle size composition, the two had mixed with the composite soil to form a good particle size distribution, increased the grain roughness, and had a sandfixingdoi:10.1088/1755-1315/300/2/022141 fatcat:q6sqxjye45fsflpcmtkzb3roba