Tunnel deformation evaluation and support design method and system based on three-dimensional geological information

Abstract

The invention relates to a tunnel deformation evaluation and support design method and system based on three-dimensional geological information. The method includes the following steps that 1, three-dimensional geological information data is collected and summarized; 2, a regional three-dimensional geological model is constructed according to collected three-dimensional geological information data; 3, adit and borehole data is catalogued and investigated, and spatial distribution of initial stress and rock mass mechanical parameters of the region where a grotto structure is located through the three-dimensional space cube network DSI interpolation technology is obtained; 4, a tunnel geometric structure model is constructed in the three-dimensional geological model, and deformation of a specified tunnel section is calculated; 5, a support scheme is given according to the deformation, and a statistical summary result of engineering quantity is given out. An auxiliary project decision maker adjusts the arrangement and support schemes of an underground tunnel in time to achieve the purposes of safety construction and cost saving.

Description

technical field [0001] The invention relates to the technical field of engineering, and more specifically relates to a method and system for tunnel deformation evaluation and support design based on three-dimensional geological information. Background technique [0002] Before the excavation of rocky underground tunnels for hydropower, transportation, and mining, deformation assessment and support design are required in advance. The deformation and failure of surrounding rock depends first on the surrounding rock geology, including the lithology and structural conditions of the surrounding rock mass. It is affected by the environmental conditions of the surrounding rock, that is, the size of the ground stress, the development and distribution of groundwater, and is also closely related to the supporting conditions of the surrounding rock. [0003] For large-scale hydropower, transportation, and mining underground projects, the regional geological conditions are usually compl...

AI Technical Summary

Problems solved by technology

[0004] In the traditional underground tunnel deformation evaluation and support design methods, the coordination between the survey and design departments is low, resulting in the inability to effectively integrate the previous survey data in the design process, and the design department cannot make timely and effective decisions on supplementary survey data. Corrections and Feedback

[0005] The survey data in the early stage of the project cannot be effectively and orderly managed and utilized. With the enrichment and improvement of the survey data, it is impossible to quickly and effectively use the existing data to evaluate the local geological conditions, and it is also impossible to evaluate the layout of the site at any time. Deformation assessment and support design for any section of an underground tunnel

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