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Geodetic Monitoring of Arch–Span Bridge Construction in NovosibirskUsing Laser Scanning
Vladimir A. SEREDOVICHAndrey V. IVANOV
Alexander V. SEREDOVICH
Regional Centre for Laser Scanning
Novosibirsk, Russian Federation 2014
Laser scanning for engineering surveys
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
“Bugrinskiy” bridge, Novosibirsk
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
A layout of arch-span launching measuring
• Each span is measured from a single scan station
• 28 measurements were done for the left and right beams
• Moving length is 90 m
90м.
отм. 0 м.
отм. 31 м.
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
Scanning resolution:
in height – 10 мм
in plane – 5 мм
Scanning time:
4 – 5 minutes
Target points used for geodetic monitoring
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
Modeling of virtual target based on steel constructions crossing
Plane modeling results
Region size – 0,3 m2
Number of points for each region – 3500. RMS – 2 mm.
Segmenting: three crossed planes at a point cloud.
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
RMS error− 2 mm
Results
Vertical deformations
Horizontal deformations
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
Bridge arches joining
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
Modeling of bridge axis using laser scanning data
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
Overall laser scanning layout for bridge arches launching
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
Controlled geometric parameters of bridge arch launching
Horizontal deviation Arch’s end faces vertical deviations and elevations
Elv..Elv..
Angle
Measurements of distances
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
XYZ
Measuring of arch docking segment
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
The results of bridge arch launching
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
The result of bridge arch launching closure
Docking parameters of arch ‒
Axis deviation: right riverside +11mm, left riverside +17mm,relative deviation of docking segment’s axis 6 mm
Project’s height deviation: right riverside – 52mm, left riverside – 121mm, relative deviation of docking segment’s axis 69 mm
Docking plane’s inclination angles: right riverside + 23,8 ', left riverside – 21,6 'Relative deviation of docking segment’s axis: 2,2 ' ( 2 mm)
Arch joining is successful !!!XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
New stage of construction – the assembling and tension of cables
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
Angular parameters of cable tension areas with regard to the plane of their fixing
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
The control of cable slack parameters
0,000,010,020,030,040,050,060,070,080,090,100,110,120,130,14
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69
Расстояние от верхнего крепления ванта (м)
Откл
. (м
)
Вант 3Вант 4
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
The result of scanning
XXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014
Thank you for your attention!
Siberian State Academy of Geodesy
Regional Center for Laser Scanning10, Plakhotnogo St., Novosibirsk, 630108, Russian Federation
Mobile: +79138933536E- mail: geoid@ngs.ru
Skype: andrey_ivanov_nskXXV International Federation of Surveyors
Congress, Kuala Lumpur, Malaysia, 16 – 21
June 2014