Method for measuring and setting straight line by adopting analytical method

Abstract

The invention relates to a method for measuring and setting a straight line by adopting an analytical method. The method comprises the following steps: step 1, surveying and selecting a control point;step 2, defining a to-be-lofted straight line, solving a straight line parameter, and compiling a calculator program; and step 3, carrying out lofting, carrying out comparison on a measured horizontal distance and a horizontal distance calculated through a calculator program and adjusting a prism placement position to determine a straight line lofting point. The method is high in practicability and flexibility; the working efficiency is improved; most importantly, tedious indirect steps in a conventional method are reduced and manual calculation errors in the measuring and placing process areavoided; the accuracy and precision of point positions can be well guaranteed while speed measurement is improved; meanwhile, the method can also be used for straight line detection and the like andhas high expansibility and usability.

Description

technical field [0001] The invention belongs to the field of engineering surveying and mapping, in particular to a method for measuring and setting straight lines using an analytical method. Background technique [0002] In building construction stakeout, straight line stakeout is a regular work, long-distance projects include roads, pipelines and other projects; short-distance projects include hidden culverts, overhead trestles, etc. Regardless of the length of the straight line, its measurement and design methods are basically the same, but also diverse. [0003] At present, the main instrument for accurately measuring straight lines is still the total station. The conventional methods for measuring and setting straight lines mainly include: 1. Cartesian coordinate method 2. Point stakeout method 3. Coordinate conversion method and so on. Cartesian coordinate method: when the direction of the straight line is parallel to the coordinate axis direction of the control netwo...

AI Technical Summary

Problems solved by technology

[0004] However, conventional survey and design methods often have some inconvenient factors in some survey and release environments. For example, in road engineering, straight line segments are rarely parallel to the coordinate axes of the national coordinate system (that is, the central meridian of the survey area), which leads to " "Cartesian coordinate method" is difficult to implement, and it is not convenient to directly measure the coordinates to locate the straight line; while the "point stakeout method" needs to calculate the stakeout points in advance and enter them into the instrument when the visibility is good, the process is more cumbersome

Moreover, due to the limitation of the position of the preset stakeout point, obstacles often block the view, resulting in a very slow stakeout speed; although the "coordinate transformation method" can realize flexible measurement and placement after conversion calculation, the conversion coordinate calculation needs to be carried out in advance And it is necessary to verify the correctness of the conversion results. When the number of points is large, the workload of batch conversion will be heavy

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