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Multiple points settlement observation method and device therefor

A technology of detection device and support device, which is applied in water conservancy projects, marine engineering, roads, etc., can solve the problems of high price, inability to measure the deformation of the deep foundation, and inability to observe the layered settlement of the filled body. The effect of low cost and high observation accuracy

Inactive Publication Date: 2007-08-15
NORTHWEST RES INST CO LTD OF C R E C
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The above settlement observation methods have the following deficiencies: ① artificial leveling observation can only observe the settlement of the exposed surface, and cannot carry out the settlement observation of the layers of the filling body, the deep part of the foundation and the construction period; , although its accuracy is high, it is expensive, and has the same shortcomings as leveling; ③The magnetic ring subsidence instrument can measure the layered settlement, but this observation method can only be used for the filling body after the construction is completed. Observation, rather than measuring the deformation during the construction period; ④ The horizontal inclinometer can achieve the purpose of measuring the layered settlement of the filling body by specially arranging the measuring points, but it cannot measure the deformation during the construction period and the deformation of the deep foundation
The actual accuracy of the two observation methods described later is at the cm level. For example, in high-speed railways and other projects where the subgrade settlement control standard is only 1-2 cm, it often cannot meet the requirements of high measurement accuracy.
From the prior art, there is no method for observing the settlement of the filling body during construction and any instrument that can be used for similar observation

Method used

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  • Multiple points settlement observation method and device therefor
  • Multiple points settlement observation method and device therefor
  • Multiple points settlement observation method and device therefor

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Embodiment Construction

[0034] The present invention will be further explained below in conjunction with the drawings and various embodiments:

[0035] Figure 1 shows the first embodiment of the device of the present invention. In the figure: 1 is the cap on the upper end of the last-stage connecting pipe. When the device of the present invention is buried in the filling body, the upper end of the last-stage connecting pipe should be covered with a pipe cap to prevent rainwater or sundries. Fall into the measurement channel. 2 is the connecting pipe. In this figure, this connecting pipe is the last-stage connecting pipe. 3 is a seal ring provided on the pipe end of the straight pipe 6 on the settlement detecting member 4. 4 is the shallow settlement detection component. 5 is a rigid flat plate fixed outside the straight pipe 6 on the settlement detection member 4. 6 is straight pipe. 7 is a boss fixed in the straight pipe 6 for hooking the probe part of the measuring ruler. It can be seen from FIG. 1 tha...

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Abstract

The invention discloses a method for checking artificial embankment body and foundation sink. The method comprises that embedding a deep sink detector and a shallow sink detector with hollow tubular structures in each checking layer along one normal line at object position in the artificial embankment body, and leading measuring device or measuring medium into a measuring channel formed by the shallow sink detector and a connecting tube, to measure the position change of the shallow sink detector and measure the height strike of the upper end of the connecting tube to find out the sink of each checking layer.

Description

Technical field [0001] The invention relates to a method for detecting the settlement of an artificial filling body and its foundation, a device used in the method, and a method for setting the device. This instrument is especially suitable for observing the layered settlement in artificial fillings and the deformation and post-construction settlement at a certain depth of the foundation at the same time along a vertical line, and can be installed without affecting the construction. . The artificial filling bodies of the present invention include roadbeds, dams and other structures artificially built with various fillers, such as railway or highway roadbeds, dams, and the like. Background technique [0002] During and after the construction of roadbeds, dams and other artificial filling bodies, the settlement of the filling bodies is often the primary indicator for controlling the construction speed and judging the status of their functions. [0003] At present, the following ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B1/00E02B3/00E02B7/00E02D33/00E01C3/00
Inventor 楚华栋熊治文王小军达益正薛春晓杨晓明方建生郑静屈耀辉杨印海杨永鹏
Owner NORTHWEST RES INST CO LTD OF C R E C
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