Sequential approximation method There is a nivelir net with three node points. 12, 13, and 14-node requires finding the absolute height of the points let it be done

Presentation of the Faculty of construction of Fergana Polytechnic Institute of the Ministry of higher and Secondary Education of the Republic of Uzbekistan, Geodesy, cartography, Cadastral direction, student of Group E 9-21, Hajimamatov Murodil on the subject of Geodesy theme: equalization of the nivelir net in a sequential approach method.assessment of the results of equalization. Submitted by: Hojmamatov.M. Accepted: mirzaahmedov.s

Sequential approximation method There is a nivelir net with three node points. 12, 13, and 14-node requires finding the absolute height of the points let it be done. Let's define: -node points absolut height, — absolute height of base points. The absolute height of the points knot is found by the formula:

• Sequential approximation method There is a nivelir net with three node points. 12, 13, and 14-node requires finding the absolute height of the points let it be done. Let's define: -node points absolut height, — absolute height of base points. The absolute height of the points knot is found by the formula:

Here: -measured relative on the road height Even the elements in these formulas are unknown. Therefore, the absolute height value of the node points is not found at once, it is ketmaket approximation is found by the method. In the first approximation, the unknown part of the formula is zero, and the node points are the approximate value of the absolute height. In the first approximation in the second approximation found node points approximate absolute height the value is put in the formula.

Here: -measured relative on the road height Even the elements in these formulas are unknown. Therefore, the absolute height value of the node points is not found at once, it is ketmaket approximation is found by the method. In the first approximation, the unknown part of the formula is zero, and the node points are the approximate value of the absolute height. In the first approximation in the second approximation found node points approximate absolute height the value is put in the formula.

Account node points absolute height results are the same as the last two approximations it is continued until it is. Account simplification for the quoted weight is found:

• Account node points absolute height results are the same as the last two approximations it is continued until it is. Account simplification for the quoted weight is found:

when considering that formula view gets here: . The results of the calculations are placed in the table below:

When the value of absolute heights in the last two approximations does not differ from each other by more than ± 0.3 mm, calculations are stopped.

• When the value of absolute heights in the last two approximations does not differ from each other by more than ± 0.3 mm, calculations are stopped.
• Node to check the correction by points the following form is applied to formula:

Check error ± 0.3m, It should be no more than.

Thank you very much.For your attention...

• Thank you very much.For your attention...