Research and Application of Physical Exploration Methods for Realistic 3D City Construction
In the context of new urbanization and the deepening of live 3D mapping technology,the fine development and management of underground space is especially crucial for cities to achieve high-quality development. This study explores a geophysical exploration ( physical exploration) method suitable for the construction of real-life 3D cities,aiming to improve the accuracy and working efficiency of urban under-ground space exploration. Aiming at the complex conditions of the city,this paper proposes a comprehensive physical exploration method,which not only covers shallow,medium and deep exploration,but also integrates new basic mapping techniques. In a case practice for the reno-vation of an old office building,due to the site conditions can not be implemented drilling,the author used high-resolution non-destructive survey technology,the use of multi-channel multi-frequency three-dimensional ground-penetrating radar system,seismic frequency imaging method and high-density microdynamic detection technology,the integration of multi-source data,to explore the distribution of the under-ground air-raid shelter of the office building,and revealed the stratigraphic structure,geotechnical interfaces and the condition of the under-ground building structures,and finally constructed a new method to meet the requirements of the urban complex conditions,and finally con-structed a BIM model that meets the requirements of real-life 3D engineering level accuracy,which integrates the information of ground build-ings,underground pipelines,underground and geological bodies,etc.,and the model can be used to achieve section analysis and geotechnical simulation calculations,etc.,which provides an important basis for the safety transformation and scientific management of the office building. The article further suggests that the future development trend of physical exploration technology should focus on the development of digital in-telligent technology,promote interdisciplinary and multi-professional intermingling,and help the construction of real-life three-dimensional Digital China.
realistic 3D city constructionBIM modellingunderground space detectionhigh precision physical exploration methods
NETL
NSTL
万方数据
