The construction sites of railway manufactured sand plants are typically characterized by complex geological conditions, leading to an increased likelihood of geological disasters, which not only causes significant challenges to the engineering construction but also brings considerable risks to the safe operation of the facilities. This study proposes an innovative application scheme of microtremor was proposed, which was introduced to the project for the first time. This technology allows for detailed geological investigation of the proposed plant sites, comprehensive evaluation of the site conditions, and timely identification of geological risks. By integrating the microtremor detection results with a 3D data platform, this innovative approach enables the intuitive and accurate representation of the geological conditions of the plant site. This overcomes the limitations of conventional geological exploration methods, making the acquisition and analysis of geological information more efficient and precise. The 3D data platform, built on the foundation of this research approach, can accurately reproduce the environmental information of the plant site and potentially provide services such as geological disaster early warning and digital management. This offers strong technical support for related engineering projects.