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3D Modelling and Virtual
Reality Management
Information System (VRMIS)
Application in ChinaD.A. Liu J.M. Zhang W. Pan Q.B. Zeng
Key laboratory of Engineering Geomechanics
Institute of Geology and Geophysics,
Chinese Academy of Sciences, Beijing, China
Email: [email protected]
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Developments and
Applications of 3D
Geological Modelling and
Visualization in China
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Some Basic Investigations of
3D Geological Modelling
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3D Modelling method Study(Dr Shuming Chen,
Guangxi Electric Power Design and Research Institute)
Curved fracture surface modelling
Intelligent strata generation from boreholes
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Auto divided displayAuto divided display
3D Geology Model Visualization
Method Study(Dr. Shuxian Zhao, Institute of Crustal Dynamics,
China Seismological Bureau)
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Intersection and Geological Bodies
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3D Geology Model Visualization
Method Study(Dr. Zhao Shuxian, Institute of Crustal Dynamics,
China Seismological Bureau)
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3D Visualization and Modelling(Dr Shuming Chen, Guanxi Electric Power Design and
Research Institute)
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More Complicated Modelling
Intersection generated form arbitarily distributed boreholes
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Excavation of Complicated
Geological Body
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Karst Rock Strata Simulation
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Karst Rock Excavation and Slice
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More Complicated 3D
Geological Modelling
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Mining Engineering Application(Dr. Liguan Wang,Central South University)
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3D Visualizing and Numeric Modelling
(Dr Liguan Wang, Cetral South Universtiy)
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3D Visual Analyzing and Modelling
(Dr Liguan Wang, Cetral South Universtiy)
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3D Geology Model of Jingping Dam Site & Its Underground Powerhouse
3D Modelling of Hydropower Project(Tianjing University and CHIDI)
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Global 3D Visualization
for Seismology Research(Dr. Shuxian Zhao, Institute of Crustal Dynamics,
China Seismological Bureau)
Global 3D Visualization Global 3D Visualization
for Seismology Researchfor Seismology Research(Dr. Shuxian Zhao, Institute of Crustal Dynamics,
China Seismological Bureau)
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Dr. Shuxian Zhao, Institute of
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China Seismological Bureau
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Virtual Reality Management
Information System (VRMIS) and
its Application in XiangjiabaHydropower Station and Other
Projects of China
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What is VRMIS and Why need it?
• Integration of VR(virtual reality) ,GIS and 3D modellingtechnologies in management information system
• A useful tool in data analysis, data mining, risk management and evaluation, geotechnical design, and decision-making based on the features of geological structure and exploration data.
• Advanced visualization of EG-MIS, good display platform which can not only take full advantage of the investigation data but also save the cost of investigation and design, and reduce the risk.
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Engineering Background ofXiangjiaba Hydropower Station
• to be built on the Jinshajiang River, which is one
of the 12 hydropower developing bases in China.
• A gigantic station with power capacity of 6000MW
Location of Xiangjiaba Dam
Xiangjiaba
� the watershed area is 45.88*104
km2, normal reservior water level
is 380m, storage capacity is
49.78*109m3, the max height
of the dam is 161m.
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Engineering Demands
• Manage tremendous investigation data of landform, drill
holes, trench and adits, stored in the format of tables,
characters, charts and drawings.
• Enhance the efficiency of geological investigation and
analysis;
• Accelerate the speed of applying alterable designs and
informational construction.
• Obtain the information directly and conveniently by flying
interactively or automatically in the 3D VR environment.
• Know more clearly the geological structure of the dam site,
improve the correctness of analysis and decisions.
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Main Frame of VRMIS
VRMIS
Settings of 3D Scene
Flying Automatically / Interactively
Geological Solid Query
Virtual Operation of the Solid
Management of Drawings
Management of Investigation-Data
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Some
Key
Techs
• 3D Geological Modelling
• Data management based on nodes
• Pyramid 3D Data Engine
• Geometry Skin Technique
• Automatic Profile Plotting
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Main Functions (1)
� Flying manually, that is using four direction control keys to go forward, back, turn left or right, or even change the viewpoint of the user.
Flying
automatically,
that is defining
a flying path in
advance, and
play it back
automatically
whenever
needed.
�Flying in the virtual scene
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Main Functions (2)
• Information Query
� A database has been connected to the scene. After define the attributes of the object in the virtual scene, users can query the information of stratums, faults and drill holes at any time when browsing.
A query to a stratum
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Main Functions (3)
• Virtual Operation� Change the position, direction
and scale of the objects in the
virtual scene in the real time.
� Zoom, rotate, translate, split
the scene or objects and so on
by the tools in the toolbar.
� Roam and shuttle in the gap to
observe every stratums and
faults inside the 3D model.
Splitting the 3D geological model
into two parts along the axis
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Main Functions (4)
• Automatic Profile Plotting
� Borehole plotting.
� Slice generation
� Profile and plane section
generating from 3D model.
� Engineering geology
profile formatting.
� Various formatted drawing
outputting.
Engineering Geology Profile Generation
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Cut view of the model (1)
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Sliced view of the model (2)
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Sliced view of the model (3)
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Automatically plotted RQD and Testing value
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Automatically plotted boreholes with color column of strata
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The result of automatic plotting module
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• Construction management information
system of an airport project
• Virtual structure design for Longyou
caverns conservation
• Virtual design of anti-rolling-stone shed in
Sichuan-Tibet road
Other Application Examples
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A rendered view
Layer managing function used in airport
Virtual reality construction management of
an airport project
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The original stone pillar of 1,cavern
The reinforcement design
Best design virtual reality of Longyou caverns, China
The reinforcement of 2# cavern by pillar and beam
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The perspective view of anti-rolling-stone shed
The side view of anti-rolling-stone shed
Virescence of the anti-rolling-stone
shed
Virtual design of anti-rolling-stone shed in Sichuan-
Tibet highway
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• 3D geological modelling and visualization have widely developed
in China but still are not perfect for easy various applications.
National and international cooperation are needed.
• VRMIS is a good visualization platform to take full advantage of
geological investigation data and to save the cost of investigation,
design and construction.
• 3D geological modelling is one of the key technologies used in the
building of VRMIS. Its fundamental study is still needed.
• Deep integration of 3D modelling, Virtual Reality and GIS is a
very hard and important future task.
Conclusions
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