Actual measurement device and method of ultrahigh earth-rock dam internal 3D deformation

A three-dimensional deformation, earth-rock dam technology, applied in the measurement device, electromagnetic measurement device, electric/magnetic solid deformation measurement and other directions, can solve the problems of neglected coupling, large internal deformation, large error, etc. The effect of long time and late investment

Active Publication Date: 2017-05-17
NANJING AUTOMATION INST OF WATER CONSERVANCY & HYDROLOGY MINIST OF WATER RESOURCES +1
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Problems solved by technology

[0002] The internal deformation of ultra-high earth-rockfill dams during the construction period, initial storage period and initial operation period is relatively large, especially the settlement deformation. The existing internal deformation monitoring method separates vertical displacement and horizontal displacement monitoring, and uses water pipe settlement instruments and tension lines respectively. It ignores the coupling between horizontal displacement and vertical displacement, and directly takes the extension and contra

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  • Actual measurement device and method of ultrahigh earth-rock dam internal 3D deformation
  • Actual measurement device and method of ultrahigh earth-rock dam internal 3D deformation
  • Actual measurement device and method of ultrahigh earth-rock dam internal 3D deformation

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[0057] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0058] A three-dimensional deformation measurement device inside a super-high earth-rockfill dam

[0059] like figure 1 , 2 As shown, the stainless steel plate 2 is embedded inside the dam body 1 as a representative of the measuring point, and the vector line body 3 is anchored in the center of the stainless steel plate 2. Compared with the drawing line body in the prior art, the vector line body 3 is only used as a reference and not Simultaneously measuring azimuth and length is different, it obtains line body azimuth and length at the same time; Downstream dam body 11 is buried with wedge-shaped combined ob...

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Abstract

The invention discloses an actual measurement device and method of ultrahigh earth-rock dam internal 3D deformation. Multi-edged stainless steel plate is buried in some parts that need to be monitored in internal dam, and a vector line body is anchored in the center of the stainless steel plate. The downstream of the line body monitoring facility installs in a wedge-shaped sectional view room inserted in the downstream surface of the dam. A GNSS receiving antenna is installed in the roof and a two-axis inclinometer is installed in four corners of baseboard to acquire 6D shift of the house. The upper wall of the house is reserved for the wide seam for introducing the vector line body that tensions by a fixed pulley and a weight. The angle is measured by the line body orientation measurement device. The line body axial elongation is measured by coaxial swirling potentiometer type displacement meter in a fixed pulley and axial distribution temperature correction is considered. The internal dam 3D deformation can be gained by combining a sensor measurement value and a level-3 coordinate. The device and method has the advantages of high measurement accuracy, good stability and high reliability.

Description

technical field [0001] The invention belongs to the technical field of hydropower engineering, and in particular relates to a device and method for actually measuring three-dimensional deformation inside a superhigh earth-rockfill dam. Background technique [0002] The internal deformation of ultra-high earth-rockfill dams during the construction period, initial storage period and initial operation period is relatively large, especially the settlement deformation. The existing internal deformation monitoring method separates vertical displacement and horizontal displacement monitoring, and uses water pipe settlement instruments and tension lines respectively. It ignores the coupling between horizontal displacement and vertical displacement, and directly takes the extension and contraction of the tension line horizontal displacement meter axis direction as the horizontal displacement of the upstream and downstream directions of the measuring point, and the approximation error ...

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Application Information

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IPC IPC(8): G01B7/16G01S19/42
CPCG01B7/16G01S19/42Y02B10/50
Inventor 方卫华周永红范连志那巍芦绮玲张鲁晋孟振刚李海梅王婧
Owner NANJING AUTOMATION INST OF WATER CONSERVANCY & HYDROLOGY MINIST OF WATER RESOURCES
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