Deformation Monitoring of Underground Openings by Photographic Techniques.

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SeriesReport of investigations (United States. Bureau of Mines) -- 7912
ContributionsMcvey, J., Lewis, S., Guidice, E.
ID Numbers
Open LibraryOL21739531M

Get this from a library. Deformation monitoring of underground openings: by photographic techniques. [James R McVey; United States. Bureau of Mines.]. A general review of the deformation monitoring techniques and a case study: analysing deformations using GPS/levelling Article (PDF Available) January with 2, Reads How we measure 'reads'.

Deformation monitoring (also referred to as deformation survey) is the systematic measurement and tracking of the alteration in the shape or dimensions of an object as a result of stresses induced by applied loads.

Deformation monitoring is a major component of logging measured values that may be used to for further computation, deformation analysis, predictive maintenance and alarming. structural deformations, different deformation models have been developed [7].

In deformation monitoring stu-dies, these models include static, kinematic and dynamic models. Static model that is not dependent on time provides the determination of deformations on the characteristic points of the area or the structure, which is Size: KB.

Monitoring ground deformation in tunnelling: Current practice in transportation tunnels Article (PDF Available) in Engineering Geology 79(1) June with 5, Reads How we measure 'reads'.

Depending on the client’s needs, a deformation monitoring survey may include determining the magnitude and direction of movement, determining the level of accuracy required to satisfy movement criteria, and determining the frequency of re-measurement.

AST is qualified to design and perform a monitoring program to satisfy those needs. McVey, James R.: Deformation monitoring of underground openings by photographic techniques / ([Washington, D.C.]: U.S. Bureau of Mines, []), also by Brookhaven National Laboratories, Spokane Mining Research Center (U.S.), and United States.

Bureau of Mines (page images at HathiTrust). Automatic Deformation Monitoring System into this article. Seems a good fit after (or within) the Risk Management section.

Details Deformation Monitoring of Underground Openings by Photographic Techniques. FB2

--Haruth21 February (UTC) Done. Most of the content there (and here) wasn't very good, but they're now merged. COLESANTI et al.: SAR MONITORING OF PROGRESSIVE AND SEASONAL GROUND DEFORMATION In this case (4) The term gathers both phase decorrelation noise and possible time-nonuniform deformation.

Since differential interferograms are available, for each image pixel we have equations in the unknowns and. Unfortunately, thephase values are File Size: 3MB.

DEFORMATION SURVEYING (MONITORING) Monitoring is the determination of movements of a structure obtained by referring those movements to a network of control points outside the structure. However, this method is not the only means of monitoring.

Other techniques can measure relative movement with greater accuracy as Size: 92KB. TS Deformation Monitoring and Analysis of Structures Using Laser Scanners From Pharaohs to Geoinformatics FIG Working Week and GSDI-8 Cairo, Egypt April3/10 scanners arises in the fact that they gather more data for the time given than traditional techniques.

This paper presents two innovative methods for tunnel monitoring that are based on digital photogrammetry. Both have been conceived to speed up operations that are currently accomplished by using engineering geodesy techniques and instruments.

On the same time, proposed solutions are cheap and affordable. The first one is aimed at measuring relative deformations of transversal cross-section Cited by: D eformation surveying is the surveying of man-made and natural structures and elements within those structures to determine the presence of movement and provide data to quantify and analyse that movement.

We utilize both laser scanning and point monitoring techniques including precise leveling and horizontal network observations to provide comprehensive and bespoke deformation monitoring. Deformation Monitoring TUNNEL MONITORING.

In a thickly crowded living environment where construction activities are carried out nearby an existing tunnel, it is critical to know the structural effects arising from these activities to ensure constant safety. BUILDING MONITORING. The application of modern design and construction techniques has benefited significantly from ground deformation measurement around the tunnel and at ground surface, making deformation monitoring an integral part of decision making in the design–construction–supervision–maintenance system (e.g., Kovari and Amstrad,Kontogianni and Stiros,Kontogianni and Stiros, a Cited by: points in a monitoring network.

The trend of movements then form a basis for preliminary identification of the deformation models during the modelling of deformation. Although deformation analysis can be applied on one-dimensional (1-D), two-dimensional (2-D) and three-dimensional (3-D) monitoring networks, this paper will focus only.

A New Railway Tunnel Deformation Monitoring System using FBG. Bending Gauges. Chao Zhang1) *Yi-Qing Ni 2) Lu Zhou3) and Chung-yue Wang4).

1), 2) 3) National Rail Transit Electrification and Automation Engineering Technology Research Center (Hong Kong Branch) 1), 2), 3) Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong.

Deformation monitoring should be applied at construction projects where periodic measurement and tracking of the change in the dimensions of structures due to load impact (in particular structures that interact with the subsoil) is indicated. Monitoring of Bridge Deformation Using GPS Technique Vol.

13, No. 6 / November − − carefully in order to give the appropriate data. Antenna settings must be checked and log on static mode must be turned on in tracking settings of the GPS device. So, the base station is corrected then each epoch of observation is corrected relative to.

Underground, from Lines 2 and 3 of the Athens Metro and from a nine-kilometer long railway mountain tunnel in Greece. Ground deformation measurements The objectives of ground deformation monitoring are different in mountain and urban tunnels.

In mountain tunnels, the main objective of deformation measurements during construction is to. In dam deformation monitoring projects, which all the measurement process must be repeated at least twice a year (in first five years of shelf time of dam) [4], It is necessary to use targets, with maximum performance and resistance against all above limitations.

This part will discuss in part (5). For more information download a paper on “The use of three-dimensional laser scanning for deformation monitoring in underground mines.” Or, for more details contact David Beck, [email protected]

High-performance GPS RTK software has been developed within the Geodetic Research Laboratory (GRL) at the University of New Brunswick (UNB). This software was initially designed for gantry crane auto-steering.

Due to limitations with classical geodetic deformation monitoring techniques, the Canadian Centre for Geodetic Engineering (CCGE) at UNB has decided to augment its fully Cited by: LiDAR scanning is for monitoring for change and deformation. Traditionally, deformation and change in an underground environment is measured using a series of five or more permanent control points installed around the profile of an excavation.

Using LiDAR for profile analysis provides many benefits as compared to traditional monitoring techniques.

Download Deformation Monitoring of Underground Openings by Photographic Techniques. FB2

Santa Barbara, CA GEO is monitoring a 40 foot retaining wall situated above a public parking lot. The area sees occasional heavy rains, so early warning of potential deformation of the wall was required.

The client requested a non-intrusive, long-term monitoring system. GEO.

Description Deformation Monitoring of Underground Openings by Photographic Techniques. FB2

Ground deformation monitoring using Global Positioning System (GPS) techniques has been the most important method used at the Montserrat Volcano Observatory. Using a constellation of satellites and radio waves, the position of a fixed pin on the flank of the volcano can be measured to within a few millimetres in just a few minutes.

Deformation monitoring (also referred to as Deformation survey) is the systematic measurement and tracking of the alteration in the shape or dimensions of an object as a result of stresses induced by applied loads.

Deformation monitoring is a major component of logging measured values that may be used to for further computation, deformation analysis, predictive maintenance and alarming.

Local deformation monitoring in an open pit mine When monitoring deformations by means of precision surveys, several reference stations are typically set up, against which the displacements of object points are calculated. To ensure that sound conclusions are made based upon analysis of the displacements, it.

ASPRS Annual Conference Milwaukee, Wisconsin ♦ MayCASE STUDY OF BEAM DEFORMATION MONITORING USING CONVENTIONAL CLOSE RANGE PHOTOGRAMMETRY Ivan Detchev a, Ayman Habib a, Mamdouh El-Badry b a Department of Geomatics Engineering b Department of Civil Engineering University of Calgary, University Drive NW.

It is suggested that different monitoring methods should be verified against each other to ensure the reliability and accuracy of the monitoring results. Based on the distribution of tunnel settlements, the curvature radius of tunnel deformation is obtained by the cubic B-spline method and then used in performance analysis on the tunnels.

Deformation monitoring is the surveying process where frequent measurements are taken to determine movement and/or changes on natural or man-made objects.

Forces that may cause deformation could be changes to ground water levels, the removal or addition of materials, construction techniques or other external influences.Using Total Station for monitoring the deformation of high strength concrete beams Mosbeh R.

Kaloop1, Ashraf 2, Mohammed kh3 1School of Civil Engineering, Harbin Institute of Technology, HarbinChina 2Siberian State Academy of Geodesy (SSGA), Novosibirsk, Russia 3 Faculty of Engineering, Mansoura University,Mansoura, EgyptFile Size: KB.A Review of Beam Deformation Monitoring using Close Range Photogrammetry Nimisha Dwivedi1 Dr.

R. K. Shukla2 Student Associate2 Professor 1,2Department of Civil Engineering 1,2Madan Mohan Malaviya University of Technology, Gorakhpur Abstract—Deformation checking is an important procedure.