Calculation of building leveling? 5. What is the calculation of building leveling?

To know the principle first, in fact, it is very simple, remember that the "Building Construction Manual" has the use of a level, and there is a simple diagram, just look at the diagram to understand.

The height difference method is usually used.

The work of measuring the elevation of ground points is called an elevation survey. Elevation measurement is one of the three basic tasks of surveying. According to the different instruments used and the measurement method, elevation measurement can be divided into leveling, triangulation elevation measurement and barometric elevation measurement.

Elevation measurement with a level, known as leveling, is the most commonly used and precise method of elevation measurement.

Principles of leveling:

Leveling is to use a horizontal line of sight and with the help of a leveling ruler to determine the height difference between two points on the ground, so that the elevation of an unknown point can be deduced from the elevation of a known point. There are two methods for measuring the elevation of the point to be measured: the height difference method and the instrument height method.

1 Height difference method.

As shown in Figure 2-1, if the elevation of point A is known, the elevation of point B is to be determined. Erect two rulers at points A and B, and place an instrument between points A and B that can provide a horizontal line of sight. Assuming that the horizontal line of sight of the level reads on the ruler as a (rear view) and b (front view) as b, then the elevation difference h between a and b points is.

h=a-b, so the elevation hb of point b is.

hb=ha+h

This method of calculating the elevation of the point to be measured by using the height difference is called the height difference method. This ruler is called a leveling ruler, and the instrument used is called a level.

There are different algorithms depending on the building, but the methods are all pretty much the same. The elevation of the origin plus the reading of the steel ruler, plus or minus the negative depth of the foundation, is subtracted by the previous number.

Don't understand what your question means? It's better to be more detailed, huh.

And that's going to be counted as having never heard of it.

Copying refers to the inspection, adjustment and measurement of the elevation and straightness of the construction object to meet the specified requirements.

In order to facilitate construction, a number of control points of a certain plane are measured with a level to see whether they are on a horizontal plane, that is, the elevation is the same.

Method: 1. Find a horizontal plane and control the elevation. There are 50 lines and 1 meter lines in general projects, mainly according to the actual situation of the project.

2. Place the building on a flat surface, generally with a level, or with a transparent plastic pipe, or a basin with a large bowl. can be flattened.

It depends on what you copy! After you set up the instrument, just align it with the tower ruler and read it! Anyway, you have to remember that you have to do what others ask you to do!

It is often said that leveling is leveling, and leveling is to observe the horizontal height difference between two points through an instrument. If you want to learn it, just buy a book on surveying and read it, it's very simple.

Copying is to measure the elevation of the building, to use a level, this is the most basic level in the building, if you do the building for two or three hours can learn well.