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Telescopic settlement pipe, and settlement deformation monitoring system and method

A deformation monitoring and settlement monitoring technology, which is applied in the field of settlement deformation monitoring system and telescopic settlement tube, can solve the problems of easy degaussing of the electromagnetic settlement ring, high requirements for embedding accuracy, and failure of normal observation of the settlement tube, etc., and achieve the effect of clear marking

Inactive Publication Date: 2020-02-28
POWERCHINA CHENGDU ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a telescopic settlement pipe, settlement deformation monitoring system and method, to solve the requirement of settlement monitoring for the embedding accuracy of settlement pipes in the prior art for rockfill dams with core walls with a dam height exceeding 150m High, the settling tube is squeezed, excessively bent, stuck in the hole and other factors may lead to the failure of normal observation, and the problem that the electromagnetic settlement ring is easy to demagnetize, so that it can adapt to deformation under high confining pressure conditions and adapt to the core wall of high rockfill dams The purpose of monitoring effect of settlement deformation

Method used

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  • Telescopic settlement pipe, and settlement deformation monitoring system and method
  • Telescopic settlement pipe, and settlement deformation monitoring system and method
  • Telescopic settlement pipe, and settlement deformation monitoring system and method

Examples

Experimental program
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Embodiment 1

[0047] Such as figure 1 The telescopic settling tube shown includes a first pipe 1 and a second pipe 2 that are inserted into each other, the first pipe 1 is located above the second pipe 2, and the connection between the first pipe 1 and the second pipe 2 The sealing member 3 is stuffed in the gap; the lower periphery of the first pipeline 1 is provided with a transverse plate 4 , and the transverse plate 4 is perpendicular to the axis of the first pipeline 1 . In this embodiment, the inner diameter of the upper first pipeline 1 is larger than the outer diameter of the second pipeline 2 . The sealing member 3 in this embodiment is preferably several rubber sealing rings.

Embodiment 2

[0049] Such as figure 2 In the telescopic settling tube shown, on the basis of Embodiment 1, the bottom of the transverse plate 4 is connected to the support plate 6 through the connecting rod 5 . The first pipeline 1 and / or the second pipeline 2 are provided with several wire passing holes 7 . The inner wall of the first pipe 1 and / or the second pipe 2 is provided with a ferrule 8 communicating with the wire passing hole 7 , and the ferrule 8 is inclined from inside to outside and downward along the radial direction. Both the first pipeline 1 and the second pipeline 2 are seamless steel pipes. In this embodiment, the outer diameter of the upper first pipeline 1 is smaller than the inner diameter of the second pipeline 2 .

Embodiment 3

[0051] In this embodiment, the telescopic settling pipe is formed by inserting several sections sequentially, such as image 3 There are three sections of pipelines shown in total, the middle section is the thicker first pipeline, and the upper and lower sides are the second pipelines. By analogy, the gradual insertion of the telescopic settlement pipe from the river bed foundation to the dam surface can be realized. This embodiment fully considers the high internal confining pressure of the core wall of the high rockfill dam, and the characteristics that the pipes traditionally connected by welding are not suitable for deformation, and the buried pipes are connected by sockets. The design takes advantage of the difference in diameter between two adjacent sections of pipelines. The small-diameter pipeline is inserted into the large-diameter pipeline for a certain length. Rubber and other materials with good sealing performance are used between the two pipelines to achieve a wa...

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Abstract

The invention discloses a telescopic settlement pipe, and a settlement deformation monitoring system and method, wherein the telescopic settlement pipe comprises a first pipeline and a second pipelinewhich are mutually inserted; the first pipeline is located above the second pipeline, and a gap at the joint of the first pipeline and the second pipeline is filled with a sealing element; a transverse plate is arranged on the periphery of the lower portion of the first pipeline and is perpendicular to the axis of the first pipeline. The method and system are used for solving the problems that inthe prior art, for a soil core wall rock-fill dam with the dam height larger than 150 m, the settlement monitoring is high in requirements for the burying precision of the settlement pipe, the settlement pipe cannot be normally observed due to extrusion, excessive bending, hole clamping and other factors, and an electromagnetic settlement ring is prone to demagnetization; according to the invention, deformation can be adapted under the high confining pressure condition, and the purpose of adapting to the high rock-fill dam core wall settlement deformation monitoring effect is achieved.

Description

technical field [0001] The invention relates to the field of settlement monitoring, in particular to a telescopic settlement pipe, a settlement deformation monitoring system and a method. Background technique [0002] Engineering safety monitoring is an important means of monitoring engineering safety. Therefore, rockfill dams need to set up monitoring items based on deformation and seepage based on factors such as the scale of the project, layout structure, topographic and geological conditions, and construction environment to monitor large-scale Dam operation performance, guidance construction, feedback design. With the increase of the height of rockfill dams, the pressure resistance capacity, deformation adaptability, and anti-distortion deformation of monitoring instruments are facing new challenges. requirements. [0003] The earth core rockfill dams with a dam height of more than 150m that have been built or are under construction in China include the Xiaolangdi Wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C5/00
CPCG01C5/00
Inventor 唐茂颖李永红文豪蔡德文陈晓鹏李鹏彭巨为李桂林王观琪陈国政张坤胡升伟
Owner POWERCHINA CHENGDU ENG
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