Abstract:The widely distributed loess-like soil in mountainous areas in Jinan has significant special engineering properties, and its collapsibility, low strength and high permeability pose serious threats to engineering construction. Based on the characteristics of regional geological environment and combined with engineering geological survey data, this paper systematically analyzes the engineering hazard mechanism of loess-like soil and puts forward targeted treatment measures. Through field investigation and laboratory test verification, a comprehensive treatment scheme suitable for this area is summarized, providing a reference for similar projects.