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Distributed settlement measurement device and measurement method

A measuring device and distributed technology, applied in measuring devices, height/horizontal measurement, surveying and navigation, etc., can solve problems such as unsuitable for distributed measurement, difficult to ensure the accuracy of vertical settlement measurement, and difficult to ensure the measurement reference point

Active Publication Date: 2015-11-11
镇江绿材谷新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the consolidation of the optical fiber and the filling material into a whole during the backfilling process, it is not suitable for distributed measurement of different deformations of each soil layer.
In addition, the optical fiber material is soft, and it is difficult to ensure the accuracy of vertical settlement measurement when tangential displacement occurs in the soil
In addition, for the reference points on the surface, especially soft soil foundations, there are problems such as low cohesive force, which makes it difficult to ensure the co-deformation of the sensor and the soil, and difficult to ensure a stable measurement reference point during soil erosion.

Method used

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  • Distributed settlement measurement device and measurement method

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Embodiment Construction

[0038] Attached below figure 1 The present invention is described further. The measuring device of the present invention mainly includes a measuring body. The measuring body is composed of a soil surface anchoring end 1, a strain sensing unit 2 located inside the rod body, a joint 3 between the strain sensing units 2, and a stable rock plate that does not settle. It consists of a bottom anchoring end 4, a free end 5 with a measuring joint and a transmission wire 6.

[0039] Attached below figure 2 The technical scheme of the present invention is described in detail:

[0040] The settlement measurement device of the present invention includes two measurement intervals outside the soil and inside the soil, wherein the on-line measurement interval inside the soil is between the anchor end 1 on the soil surface and the anchor end 4 on the bottom, and the on-line measurement interval inside the soil is between the anchor end 1 on the soil surface and the free end 5. Calibration...

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Abstract

The invention relates to a distributed settlement measurement device and a measurement method. The measurement device comprises continuous fiber composite bars that are in array distribution in a measured foundation and is vertically driven into soil or foundation. The continuous fiber composite bar is composed of a bottom anchoring end, a soil layer sensing rod body, a soil surface anchoring piece and a data line leading-out end. The soil layer sensing rod body internally contains multiple groups of long-gauge strain sensing units spliced in the length direction, the data line leading-out end is located at the upper end of the soil layer sensing rod body and is connected to the long-gauge strain sensing units, soil layer anchoring bolts consolidating each soil layer are arranged outside the splicing position of two long-gauge strain sensing units, the soil surface anchoring piece anchors the soil surface at a soil surface position, and scale is marked outside the soil layer sensing rod body. The device provided by the invention employs the structure to meet the settlement measurement requirements of hard soil layer and soft soil layer foundation in a complex environment, has strong resistance to external interference factors, is suitable for long-term continuous monitoring, has cheap price, and is convenient for construction and realization of multipoint distribution.

Description

technical field [0001] The invention relates to a technology for health detection and monitoring in civil traffic structures, in particular to a high-precision distributed settlement instrument and a measurement method thereof. Background technique [0002] For the foundation settlement measurement in civil transportation structures such as subways, light rails and viaducts, it is an important index for evaluating a foundation design or geotechnical structure design. Engineering practice shows that most foundation accidents are caused by excessive or uneven foundation deformation, so it is very important to correctly measure and control the differential settlement and total settlement of the foundation so that they do not exceed the allowable value. In recent years, people have made breakthroughs in many aspects of soil mechanics, but little progress has been made in the study of foundation deformation. The traditional land subsidence measurement methods include leveling, b...

Claims

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Application Information

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IPC IPC(8): G01C5/00
CPCG01C5/00
Inventor 吴智深黄璜
Owner 镇江绿材谷新材料科技有限公司
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