Automatic layered settlement meter

A technology of layered settlement and settling tubes, which is applied in the field of settling instruments, can solve the problems of easy missing data reporting and untimely data transmission, etc.

Pending Publication Date: 2020-10-30
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] When the traditional layered sedimentation instrument is used for monitoring, it is necessary to manually pull the scale with the drill bit and...

Method used

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings of the specification.

[0021] Such as Figure 1~4 As shown, the automated layered sedimentation instrument of the present invention includes a sedimentation tube 1, which is made of PVC pipe and has a cylindrical structure; a pair of magnetic rings 2 with a fixed vertical spacing are sleeved on the outside of the sedimentation tube, and can also be set Three or more magnetic rings; the magnetic ring 2 is a ring structure, made of magnetic material, the inner diameter of the magnetic ring 2 matches the outer diameter of the settling tube 1; a pair of magnetic rings 2 are fixed vertically by a support 6 to Increase the firmness of the relative position between a pair of magnetic rings. There are three support members 6 scattered between the two magnetic rings. The support members can be plastic rods or other supporting devices. The vertical direction of the support ...

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Abstract

The invention discloses an automatic layered settlement meter, which comprises a settling pipe, a multi-layer isomagnetic device and a magnetic induction device, wherein the multi-layer isomagnetic device is arranged on the outer side of the settling pipe in a non-contact manner; the multi-layer isomagnetic device is composed of two or more magnetic rings with a fixed interval, the multi-layer isomagnetic device is fixed in the soil body and can move along with deformation of the soil body, the electromagnetic induction device is fixed between at least two magnetic rings with a fixed verticalinterval in the settling pipe, and the different electromagnetic induction devices are electrically connected. According to the acquired magnetic field intensity value and the pre-fitted relational expression between the acquired magnetic field intensity and the magnetic ring position, the magnetic ring position under the magnetic field intensity can be obtained, and the obtained difference valueof the two magnetic ring positions is the soil layer settlement amount, so that the displacement condition can be conveniently obtained without manually lifting a scale on the layered settlement meterduring testing, data can be transmitted in time, and the use is convenient and fast.

Description

Technical field [0001] The invention relates to a sedimentation instrument, in particular to an automatic layered sedimentation instrument. Background technique [0002] Land subsidence refers to a geological phenomenon in which the ground elevation is reduced due to natural factors and man-made activities. It is a global environmental and geological problem. It mostly occurs in economically developed and populated coastal cities, making cities safe and secure. Continuous development has brought about varying degrees of impact. Land subsidence is a comprehensive result of the layered subsidence of different stratums. Therefore, in order to grasp and study the characteristics, causes and prevention measures of land subsidence, it is necessary to carry out high-precision layered settlement monitoring. [0003] Layered settlement observation is an effective method to measure the settlement, settlement rate and thickness of the compressed layer of each layered soil inside the soil bod...

Claims

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Application Information

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IPC IPC(8): G01C5/00G01C15/00
CPCG01C5/00G01C15/00
Inventor 刘坚时秀莲吴跃东梁传扬段袁敏董豪
Owner HOHAI UNIV
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