Lay-out of Horizontal Cure by SOKIA total station

Welcome to the daily survey gets articles, SO in this article, you will learn how to mark the horizontal curve BY SOKIA total station,

You can get coordinates from AutoCAD 2-meter intervals but sometimes you need a point in between. So for that purpose, you must know this method to mark any point on the cure

then first of all you have to go for So Arc by pressing the function key until you get the SO Arc option otherwise, you can go here from the menu,
when you press F1 for the menu you will get the following option by pressing the cursor up and down:

Ø  REM
Ø  Area calc.
Ø  S-O ARC
Ø  P-Project
Ø  PT to line

For arc layout, you have to select SO Arc by selecting SO Arc you get another interface that shows the following option:

Ø  OCC-Orient
Ø  Define ARC
Ø  Set out Arc

Select Define Arc and press enter from your keypad.
Then the total station will ask for some data to calculate the cure you must need the following data

 

ü              Radius of the cure or deflection angle
ü  Pc coordinates. (point of cure means the start point of the cure)
ü  Pt coordinates. (point of tangent means the end point of the cure)
ü  Deflection Angle (the angle Pc line and Pt line) Optional
ü  Direction of cure (lift or Right)

Onward going Define ARC put the data of coordinated easting and northing of the first point and simply proceed next so the machine will ask for 2^nd point and then by proceeding next you will get another screen in which the machines will ask for some more details:

    Ø    Direction

 Ø  Radius
 Ø  Deflection angle
 Ø  Arc length
 Ø  Card length

At least you need to give direction and Radius or deflection angle so when you select left or right as your requirement and also put the radius the machine will automatically calculate arc length, card length, and deflection angle.
As well as center point coordinates and intersection point coordinates you can save and mark that
Then proceed by pressing F4 for ok.
So you will be redirected to the layout screen.
Here the machine will ask for your required distance and offset

Ø  Increasing
Ø  Arc length
Ø  Offset

Increasing means how much interval you need for the next point
Arc length means how much distance from your first point you have given to the total station
Offset means how far from your center line if you put value plus this will go to the right side and if you put value minus this will go to the left side of the center line