Surface and Underground Geodetic Control for Superconducting Super Collider

Robinson, Gregory; Greening, W. J. Trevor; DeKrom, Peter W.; Chrzanowski, Adam; Silver, Edward C.; Allen, Gary C.; Falk, Mike

doi:10.1061/(asce)0733-9453(1995)121:1(13)

Cited by 8 publications

(2 citation statements)

References 2 publications

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“…for the Superconducting SuperCollider [8]), in particular for slope deformation monitoring (e.g. on Mount Carmel in Israel [4] where levelling was combined with GPS), on volcanoes, etc.…”

Section: Review Of Existing Techniquesmentioning

confidence: 99%

Deformation Monitoring in Historic Buildings: A Case Study

et al. 2011

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Deformation monitoring in heritage buildings is an essential task for conservation and restoration studies. A vast variety of techniques can be applied assuming that a three-dimensional modelization is required: GPS (Global Positioning System) measurement, photogrammetry, laser scanning, SAR (Synthetic Aperture Radar) interferometry, terrestrial surveying. They are reviewed for their possible application to a specific heritage building where deformation monitoring has to be performed under severe conditions regarding the lack of intervisibility and the requirement of extremely high accuracy. Finally high precision terrestrial surveying techniques, some of which may be considered as obsolete today, emerged as the most appropriate solution under the conditions. Results show significant displacements for particular points that agree with some suspected structural weaknesses.

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“…for the Superconducting SuperCollider [8]), in particular for slope deformation monitoring (e.g. on Mount Carmel in Israel [4] where levelling was combined with GPS), on volcanoes, etc.…”

Section: Review Of Existing Techniquesmentioning

confidence: 99%

Deformation Monitoring in Historic Buildings: A Case Study

et al. 2011

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“…The control points and the measurement points of HCRFD form a local network. The coordinate values of the control points are obtained by adjustment of the geodetic control network [22]. Through the comparison of the methods, the accuracy of the small angle and angle forward intersection methods are analyzed in detail, revealing that the new observation method is effective and advanced.…”

Section: Introductionmentioning

confidence: 99%

External Deformation Monitoring and Improved Partial Least Squares Data Analysis Methods of High Core Rock-Fill Dam (HCRFD)

Cheng

Zhou

et al. 2020

Sensors

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External deformation monitoring of high core rock-fill dams (HCRFDs) is an important and difficult part of safety monitoring. The traditional method of external deformation monitoring and data analysis for HCRFDs is to use a total station for small angle observations and establish a regression model to analyze the results. However, the small angle method has low accuracy and a low automation degree, and there is multicollinearity between the independent variables, which affects the parameter estimation and leads to the failure of model establishment. The angle forward intersection method is adopted in this paper for observation, and an improved partial least squares method (IPLS) is proposed to eliminate the multicollinearity of the independent variables. Compared to the traditional method, the improved observation method exhibits high accuracy and a high automation degree. The new data analysis method can not only eliminate multicollinearity but also improve the interpretation ability of the model. The data from the initial stage of water storage shows that the displacement increases with the increase in the upstream water level and time, and the speed of water storage is proportional to the displacement. The water level and time are the main influencing factors. This conclusion provides a theoretical basis for reservoir management departments to control water levels and gate opening and closing. The method in this paper can be applied to arch dams, gravity dams, and other types of waterpower engineering systems.

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Ogundare¹

2015

Precision Surveying

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Surface and Underground Geodetic Control for Superconducting Super Collider

Cited by 8 publications

References 2 publications

Deformation Monitoring in Historic Buildings: A Case Study

Deformation Monitoring in Historic Buildings: A Case Study

External Deformation Monitoring and Improved Partial Least Squares Data Analysis Methods of High Core Rock-Fill Dam (HCRFD)

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