Measurement formula
In the calculation formula of closure difference, ∑a and ∑b respectively represent the algebraic sum of the height difference of each measuring section, and the end point and the starting point of H respectively represent the heights of the end point and the starting point. Through this formula, we can easily calculate the closure difference of the attached leveling line.
Closed leveling route and branch leveling route
In closed leveling route and branch leveling route, the closure difference (FH) = ∑ a-∑ b. The closure difference in leveling is an important basis for checking the quality of leveling observation results. Before calculating the closure difference, we need to determine the independent closed loop or attachment route and calculate it according to the formula.
Processing beyond the allowable range
If the calculated results of height difference and closure difference are beyond the allowable range, then we need to re-measure to ensure that the measured results meet the accuracy requirements. In this way, our work can be more accurate and efficient!
Learn the calculation formula of closure difference.
The calculation formula of closure difference is an important formula in leveling, and mastering it can make our work more handy. Come and learn this practical formula!