Supercharge Your Innovation With Domain-Expert AI Agents!

A Method for Quickly Measuring Three-Dimensional Coordinates of Subway Segment Center

A technology of subway segments and three-dimensional coordinates, which is applied in the directions of measuring point marking, measuring instruments, measuring devices, etc., can solve the problems of error-prone, short construction period requirements, and difficulty in keeping up with the installation of shield tunneling segments. The effect of high precision and fast measurement speed

Active Publication Date: 2019-12-13
THE FIRST ENG CO LTD OF CTCE GRP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of today's subway construction industry, the construction period requirements are getting shorter and shorter. The traditional segment measurement is carried out separately for plane and elevation. This measurement method is time-consuming, laborious and error-prone, and it is difficult to keep up with the shield machine Excavation and segment installation

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 Method for Quickly Measuring Three-Dimensional Coordinates of Subway Segment Center
  • A Method for Quickly Measuring Three-Dimensional Coordinates of Subway Segment Center
  • A Method for Quickly Measuring Three-Dimensional Coordinates of Subway Segment Center

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] The method for quickly measuring the three-dimensional coordinates of the subway segment center mainly includes two parts, one is the on-site total station measurement, and the other is the calculation of the three-dimensional coordinates of the segment center in the office.

[0027] First, establish a high-precision paving control network:

[0028] like figure 1 As shown, the measurement interval is selected in the subway segment 4, and the distance between the two control points 1 in the interval is about 300m, and the point is selected in a stable and difficult-to-break area to prevent construction impact. Set up the total station 2 in the interval, after the total station is leveled, observe two known control points 1 to set up the station through the resection method; then observe the first prism and the second prism on the prism ...

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 provides a method for rapidly measuring three-dimensional coordinates of the center of a subway segment. The method comprises the steps as follows: 1) ground control points are introduced into a subway interval through connection survey, stations are set freely through a total station, and two control points in a high observation interval of the station for station setting; 2) a prism ruler is placed on the segment and required to be roughly perpendicular to the center line of a line, then the total station is aligned to prisms to perform measurement, and three-dimensional coordinates of two prisms under the section segment are acquired; 3) three-dimensional coordinates of the two prisms are known, and the three-dimensional coordinates of the center of the section segment are calculated by the aid of the fixed size and the space geometry relation of the prism ruler. The adopted prism ruler can be placed at will and is not required to be adjusted to the horizontal state by mounting a leveling pipe, the plane and the elevation can be measured, the measurement speed is high, the accuracy is high, and the tedious operation that the elevation is measured after the plane coordinates of the segment are measured is avoided.

Description

technical field [0001] The invention relates to a method for quickly measuring the three-dimensional coordinates of the subway segment center. Background technique [0002] With the rapid development of today's subway construction industry, the construction period requirements are getting shorter and shorter. The traditional segment measurement is carried out separately for plane and elevation. This measurement method is time-consuming, laborious and error-prone, and it is difficult to keep up with the shield machine excavation and segment installation. Therefore, it is necessary to invent a new device that can quickly measure the three-dimensional coordinates of the segment center to keep up with the tunneling and segment installation of the shield machine at any time. Contents of the invention [0003] The invention provides a method for quickly measuring the three-dimensional coordinates of the center of a subway segment, which has the advantages of simple measurement ...

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): G01C15/02G01C15/00
CPCG01C15/00G01C15/02
Inventor 张杰胜沈志强张立尧徐精干丁圣文陈奇胡秀梅
Owner THE FIRST ENG CO LTD OF CTCE GRP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com