Concrete arch dam valley width absolute deformation monitoring device and monitoring method
A concrete arch, deformation monitoring technology, applied in measuring devices, measuring instruments, mapping and navigation, etc., can solve problems such as deformation
Active Publication Date: 2022-05-31
CHANGJIANG SURVEY PLANNING DESIGN & RES +1
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Problems solved by technology
[0006] The purpose of the present invention is to address the deficiencies of the above-mentioned technologies, to provide a concrete arch dam valley width absolute deformation monitoring device and its monitoring method, to solve the defects and deficiencies of the relative deformation of the measured value obtained by the existing observation method, and to realize the true value of the measured value. Absolutely, providing real and reliable data support for slope stability analysis
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[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0038] like figure 1 , figure 2 and image 3 As shown, the device for monitoring the absolute deformation of the valley width of a concrete arch dam of the present invention includes two horizontal displacement observation piers 4 and their supporting measuring equipment, a total station 1 and a prism 2, which are arranged on both sides of the river valley and are arranged at both ends of the valley width measurement line 3. The horizontal displacement observation pier 4 is drilled with an inclinometer pipe 7 and a supporting inclinometer device. The horizontal displacement observation pier 4 has the same structure as the commonly used horizontal displacement measuring point device. The horizontal displacement observation pier 4 includes a concrete pier body 5 And the forced centering base 6 located on the top of the concrete pier 5,...
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The invention relates to the technical field of safety monitoring of water conservancy and hydropower projects, and discloses a device for monitoring the absolute deformation of concrete arch dams, including two horizontal displacement observation piers and their supporting measuring equipment total station and prism, and holes drilled on the horizontal displacement observation piers Installed with inclinometer tube and supporting inclinometer device, horizontal displacement observation pier includes concrete pier body and forced centering base, total station or prism can be placed on the forced centering base, and the drilling position of inclinometer tube is located in the valley The center line of the horizontal displacement observation pier at both ends of the surveying line is parallel to the direction of the valley, and the inclinometer pipe is equipped with an inclinometer. The invention also discloses a monitoring method of a concrete arch dam valley width absolute deformation monitoring device. The device and method for monitoring the absolute deformation of the valley amplitude of concrete arch dams in the present invention solve the defect and deficiency of the relative deformation of the measured value obtained by the existing observation method, realize the true and absolute value of the measured value, and provide true and reliable information for slope stability analysis. data support.
Description
technical field [0001] The invention relates to the technical field of safety monitoring of water conservancy and hydropower projects, in particular to a device for monitoring absolute deformation of the valley width of a concrete arch dam and a monitoring method thereof. Background technique [0002] In recent years, with the completion of a number of high arch dams such as Lijiaxia (165m), Laxiwa (250m), Ertan (240m), Xiaowan (292m), Xiluodu (278m) and Jinping I (305m) After the construction of the high-dam and large-scale reservoirs, the problem of bank deformation caused by the rise of the reservoir water level has also begun to appear, and the problem of valley width deformation has gradually attracted attention. [0003] Lijiaxia (165m), Jinping I (305m), Xiluodu (278m) and other arch dams have monitored obvious valley width shrinkage in a short period of time after water storage, and there is a trend of continuous deformation. The valley width shrinkage is 30mm respec...
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IPC IPC(8): G01B21/32G01C15/00
CPCG01B21/32G01C15/00Y02E10/20
Inventor 李少林伍中华王汉辉於三大彭绍才王义锋肖磊顾功开韦国书莫中平
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES