Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A device for measuring land subsidence

A technology of ground subsidence and lever, applied in the direction of measuring device, using optical device, using optical device to transmit sensing components, etc., can solve the problems of difficult control and error in the actual situation, and achieve the effect of simple structure, high precision and accurate measurement

Inactive Publication Date: 2015-12-09
SHANGHAI KNP CHEM +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the equipment calculates the vertical displacement of the settlement pier through the bending deformation of the cantilever beam, it is required that the deformation of the cantilever beam conforms to the rules and can be calculated, but the actual situation is difficult to control, so the actual measurement still has a certain error exists

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A device for measuring land subsidence
  • A device for measuring land subsidence
  • A device for measuring land subsidence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, a device for measuring ground subsidence includes a lever 11, a first support 12, a second support 13, a third support 14 and a first fiber grating sensor 15, and the lever is made of a material with small variable The straight lever formed, its center of gravity is at the center of the lever, the fiber grating sensor includes a temperature detection device, the first support 12 is located directly below the left end of the lever 11, and the first support 12 The top is hinged with the left end 111 of the lever 11, the second support 13 is located in the middle of the first support 12 and the third support 14, and is located directly below the lever 11, the second support 13 The hinge point with the lever 11 is a fulcrum 112 , and the fulcrum 112 is on the line of the center of gravity of the lever 11 . The right end 113 of the lever 11 is hinged with one end of the first fiber grating sensor 15, and the other end of the first fiber grating se...

Embodiment 2

[0038] Such as figure 2 As shown, a device for measuring ground subsidence includes a lever 11, a first support 12, a second support 13, a third support 14 and a first fiber grating sensor 15, and the lever is made of a material with small variable The straight lever formed, its center of gravity is at the center of the lever, the fiber grating sensor includes a temperature detection device, the first support 12 is located directly below the left end of the lever 11, and the first support 12 The top is hinged with the left end 111 of the lever 11, the second support 13 is located in the middle of the first support 12 and the third support 14 and is located directly below the first fiber grating sensor 15, the first The fiber grating sensor 15 is located directly below the lever 11, one end of the first fiber grating sensor 15 is hinged to a point 112 in the middle of the lever 11, and the other end of the first fiber grating sensor 15 is connected to the first fiber grating s...

Embodiment 3

[0044] Such as image 3 As shown, a device for measuring ground subsidence includes a lever 11, a first support 12, a second support 13, a third support 14, a first fiber grating sensor 15 and a second fiber grating sensor 19, the lever A straight lever made of a material with a small shape change, its center of gravity is at the center of the lever, the fiber grating sensor includes a temperature detection device, the first support 12 is located directly below the left end 111 of the lever 11, And the top of the first support 12 is hinged with the left end 111 of the lever 11, the third support 14 is located directly below the right end 113 of the lever 11, and the top of the third support 14 is located at One end of the second fiber grating sensor 19 directly above the third support 14 is hinged, and the other end of the second fiber grating sensor 19 is hinged with the right end 113 of the lever 11. The second support 13 is located at the first support 12 In the middle of ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of engineering measurement, and relates to a device for measuring ground settlement, in particular to a device for measuring the settlement of a tunnel or a subway pipeline by combining an optical fiber grating sensor. The device for measuring the ground settlement comprises the optical fiber grating sensor, and is characterized by also comprising a lever and three supports which are positioned under any three positions of the lever respectively; the bottoms of the three supports are fixed on the ground; the tops of the supports are connected with the lever positioned over the supports or the optical fiber grating sensor; and when the tops of the supports are connected with one end of the optical fiber grating sensor, the other end of the optical fiber grating sensor is connected with the lever positioned over the optical fiber grating sensor. The device has the advantages of simple structure and measuring accuracy.

Description

【Technical field】 [0001] The invention belongs to the technical field of engineering measurement, and relates to a device for measuring ground subsidence, in particular to a device for measuring the subsidence of tunnels or subway pipelines combined with an optical fiber grating sensor. 【Background technique】 [0002] At present, artificial level measurement and electrical level measuring instrument measurement are commonly used to detect the settlement of building structures, as well as some auxiliary measurement methods. These methods have certain deficiencies in daily measurement, especially in the measurement of ground subsidence in tunnels, subway pipes, etc., mainly in that the artificial level measurement is greatly affected by climate and artificial errors, and more importantly Yes, manual horizontal measurement of ground subsidence in tunnels, subway pipes, etc. cannot be measured online. It can only work when the subway is not in operation, and the measurement spee...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/353G01B11/02
Inventor 张杰夏懋寅何唯平
Owner SHANGHAI KNP CHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com