搜索结果: 1-9 共查到“工学 Tunnels”相关记录9条 . 查询时间(0.073 秒)
WATER LEAKAGE DIAGNOSIS IN METRO TUNNELS BY INTERGRATION OF LASER POINT CLOUD AND INFRARED THERMAL IMAGING
Tunnel Infrared Thermal Imaging Laser Scanning Intensity Data Water Leakage Diagnosis
2018/5/16
Diagnosis of water leakage in metro tunnels is of great significance to the metro tunnel construction and the safety of metro operation. A method that integrates laser scanning and infrared thermal im...
RECOGNITION OF DRAINAGE TUNNELS DURING GLACIER LAKE OUTBURST EVENTS FROM TERRESTRIAL IMAGE SEQUENCES
Time-lapse image sequences glacier lake outburst floods feature tracking glacier movement
2016/11/30
In recent years, many glaciers all over the world have been distinctly retreating and thinning. One of the consequences of this is the increase of so called glacier lake outburst flood events (GLOFs)....
THE ROLE OF ASTRO-GEODETIC IN PRECISE GUIDANCE OF LONG TUNNELS
Astro-geodetic TZK2-D Underground surveying vertical deflection
2016/1/15
One of prime aspects of surveying projects is guidance of paths of a long tunnel from different directions and finally ending all paths in a specific place. This kind of underground surveying, because...
PLANAR PROJECTION OF MOBILE LASER SCANNING DATA IN TUNNELS
Laser scanning point cloud automation adjustment rectification
2014/4/28
Laser scanning is now a common technology in the surveying and monitoring of large engineering infrastructures, such as tunnels, both in motorways and railways. Extended possibilities exist now with t...
Measurements and Correlations of MTBE and BETX in Traffic Tunnels
Characteristic ratio Tunnel Traffic BTEX MTBE
2016/3/28
In this study, the concentrations of five volatile organic compounds (VOCs), including BTEX and methyl tertiary-butyl
ether (MTBE), were investigated in five different traffic tunnels (including Lian...
Radiowave propagation studies in tunnels using ADI-PE technique
Applied sciences Alternating direction implicit Radiowave propagation Tunnels
2014/11/7
Due to the growth of mobile communication systems, there is an increasing demand for numerical techniques capable of predicting signal strength in subway, railway and underground road tunnels. In this...
Study on 3D Geological Model of Highway Tunnels Modeling Method
oriented structure semantic topology rule base 3D spatial data model
2013/3/5
Geology is the base for highways and tunnels construction. With the fast development of national highway construction, highway tunnel construction project are more and more complex. The completeness a...
METHODOLOGY OF USING CFD-BASED RISK ASSESSMENT IN ROAD TUNNELS
tunnel ventilation benchmarking risk analysis
2009/10/14
The definition of the deterministic approach in the safety analyses comes from the need to understand the conditions that come out during the fire accident in a road tunnel. The key factor of the tunn...
Turbulence Scales Simulations in Atmospheric Boundary Layer Wind Tunnels
Wind Tunnels Atmospheric Boundary Layer
2010/8/11
The simulation of the air flow over models in atmospheric boundary layer tunnels is a research domain based on advanced scientific technologies imposed by the necessity of studying the turbulent fluid...
