Concrete arch dam valley absolute deformation monitoring device and monitoring method thereof
A concrete arch and deformation monitoring technology, which is applied in the direction of measuring devices, measuring instruments, surveying and navigation, etc., can solve problems such as deformation
Active Publication Date: 2021-02-09
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 in conjunction with the accompanying drawings and specific embodiments.
[0038] Such as figure 1 , figure 2 and image 3 As shown, the absolute deformation monitoring device for concrete arch dam valley width of the present invention includes two horizontal displacement observation piers 4 arranged at the two ends of the valley width measuring line 3 on the slopes on both banks of the valley and its supporting measuring equipment total station 1 and prism 2 , the horizontal displacement observation pier 4 is drilled with an inclinometer pipe 7 and a supporting inclinometer device, the horizontal displacement observation pier 4 is consistent with the commonly used horizontal displacement measuring point device structure, and the horizontal displacement observation pier 4 includes a concrete pier body 5 And the forced centering base 6 arranged on the top of the concrete pier body 5, the total station 1 or...
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The invention relates to the technical field of water conservancy and hydropower engineering safety monitoring, and discloses a concrete arch dam valley absolute deformation monitoring device. The device comprises two horizontal displacement observation piers and matched measurement equipment total stations and prisms thereof, and is characterized in that inclinometry pipes and matched inclinometry devices are installed in the horizontal displacement observation piers by drilling holes, each horizontal displacement observation pier comprises a concrete pier body and a forced centering base, the total station or the prism can be placed on the forced centering base, the drilling positions of the inclinometer pipes are located on the center lines of the horizontal displacement observation piers at the two ends of the valley width measuring line and are parallel to the transverse valley direction, and the inclinometer pipes are provided with inclinometry devices. The invention further discloses a monitoring method of the concrete arch dam valley amplitude absolute deformation monitoring device. According to the concrete arch dam valley amplitude absolute deformation monitoring device and the monitoring method thereof, the defect that a measured value obtained through an existing observation method is relatively deformed is overcome, the measured value is true and absolute, and trueand reliable data support is provided for slope stability analysis.
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 the absolute deformation of the valley width of a concrete arch dam and a monitoring method thereof. Background technique [0002] In recent years, with the construction of a number of high arch dams such as Lijiaxia (165m), Laxiwa (250m), Ertan (240m), Xiaowan (292m), Xiluodu (278m) and Jinping I (305m), etc. After the completion of the high dam and large reservoir, the bank deformation problem 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] Arch dams such as Lijiaxia (165m), Jinping Level 1 (305m), and Xiluodu (278m) all observed obvious valley width shrinkage shortly after impoundment, and there was a trend of continuous deformation, and the valley width shrinkage was 30mm respectively. ...
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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