BIM-based geotechnical engineering comprehensive investigation information interpretation method and system

Abstract

The invention discloses a BIM-based geotechnical engineering comprehensive investigation information interpretation method, which realizes three-dimensional interpretation of comprehensive investigation results based on a BIM technology and performs three-dimensional visual integration on the investigation results. According to the technical scheme, the method comprises the steps of establishing aunified project database, and storing data; calling in terrain CAD data; carrying out automatic interpretation on the data to obtain interpretation information; carrying out three-dimensional interpretation on the field geological survey data; performing three-dimensional interpretation according to the high-density electrical survey lines, and establishing interval stratum segmented three-dimensional interpretation multi-line segments; setting a reflection coefficient value according to a seismic wave method, and establishing an inversion three-dimensional contour surface; reading drilling data, and establishing a three-dimensional drilling model according to stratum attributes; establishing an investigation result comprehensive model according to the interpretation information, and carrying out weight assignment and three-dimensional geological curved surface interpolation fitting; and establishing a geologic body according to the topographic surface, and performing Boolean operation on the geologic curved surface to obtain a layered and blocked geologic body.

Description

Technical field [0001] The present invention relates to the field of BIM technology, in particular to a BIM-based method and system for interpretation of comprehensive geotechnical engineering survey information. Background technique [0002] At present, BIM technology has been widely used and promoted in many industries of engineering infrastructure construction. Various CAD software and three-dimensional modeling software have carried out many attempts in the fields of architecture, structure, highway and railway bridges, water conservancy facilities, and provided a variety of modeling methods. However, the current BIM applications are mostly BIM modeling applications for structures to be constructed, and there is a lack of systematic BIM modeling methods for existing geological bodies. The BIM applications for survey results focus on a single analysis of drilling or geophysical results, with different data formats , Information interaction is not smooth, and there is no three...

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Problems solved by technology

[0004] The inventors found that the existing three-dimensional interpretation of geotechnical engineering comprehensive survey results mainly has the following problems: (1) At present, there is no method and application for three-dimensional interpretation of comprehensive survey results through BIM software development; (2) The drilling and geophysical results application software used in the survey work is relatively independent, and the development environment and data format that the algorithm and technology rely on are quite different, so they cannot be used universally; BIM software has poor versatility; (4) The existing BIM software mainly realizes part of the 3D modeling function for drilling data, and lacks access to geophysical data

The survey data of drilling and geophysical prospecting have not been managed in a unified database, and there is a lack of data interaction for comprehensive interpretation

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