High-precision beam method settlement measurement method based on i-angle error correction of level gauge
A measurement method and technology of leveling instrument, which are applied in the directions of height/level measurement, measurement device, instrument, etc., can solve the problems such as the lack of extensive research, and achieve the effects of increasing coincidence observation, improving stability, and improving observation accuracy.
Active Publication Date: 2022-03-01
SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
There has not been extensive research on improving the leveling accuracy from the perspective of the i-angle of the leveling instrument and the network type of the leveling control network
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0072] Example: such as figure 1 , 2 As shown, this embodiment specifically relates to a high-precision beam method settlement measurement method based on level i angle error correction, the calculation method mainly includes the following steps:
[0073] (1) if figure 1 As shown, according to the characteristics of the linear engineering structure and the deformation measurement requirements of super precision, the establishment of a high-precision beam leveling elevation control network is studied;
[0074] Construction of beam method settlement observation network type: a number of monitoring points (namely, monitoring point 1, monitoring point 2, monitoring point 3, monitoring point 4, ..., monitoring point m) are arranged at equal intervals along the line on the line structure 13, adjacent The distance between the monitoring points is 10m; at the same time, several level gauge stations are arranged at intervals on the line on the line structure 13 (that is, level gauge ...
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
Login to View More Abstract
The invention discloses a high-precision beam method settlement measurement method based on the i-angle error correction of the level gauge. Based on the design plan, a number of monitoring points and a number of level gauge stations are arranged at intervals on the line structure; Observe each monitoring point; set up a height difference calculation equation that introduces level i angle correction between each adjacent monitoring point; set up all error calculation equations to form an error equation matrix and perform indirect adjustment of the leveling control network to find Obtain the approximate value of the initial elevation value of each monitoring point and the i-angle value of the level; judge the i-angle value stability of the level gauge, and obtain the differential settlement deformation between adjacent monitoring points based on the i-angle value stability conclusion, and then Assess the safety of linear structures. The invention has the advantages that: the high-precision beam method leveling control network and the adjustment method introducing i-angle correction of the leveling instrument solve the problem of obtaining ultra-high-precision differential settlement deformation under the linear engineering structure.
Description
technical field [0001] The invention belongs to the technical field of precision settlement measurement, and in particular relates to a high-precision beam method settlement measurement method based on i-angle error correction of a level gauge. Background technique [0002] Rail transit, large bridges, lifeline projects, large-scale scientific projects, etc., have higher and higher requirements for monitoring the structural stability of equipment during operation. Among them, the accuracy level of differential settlement is required to reach the special level, and even raised to the requirement of "zero settlement difference". In view of this, high-density monitoring of the deformation area is required to ensure that the deformation is within a safe range and meet the precision requirements for the good operation of various devices. [0003] At present, the methods of settlement measurement are mainly geometric leveling method, total station triangular elevation method and ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01C5/00G01B11/16G06F17/11G06F17/16G06F17/17
CPCG01C5/00G01B11/16G06F17/11G06F17/16G06F17/17
Inventor 郭春生袁钊刘飞刘蝶张姗姗
Owner SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST