I want to what is height of instrument and Rise & fall method of levelling? What is the method to calculate reduced level.
There are certain methods to remove the delaminated concrete, and then formwork is to be fixe. After that, the application of repair material like a dry pack, and wet pack, shotcrete, is carried out if reinforcement is not removed while fixing the pipe. You can try one other method also, by fixing pRead more
There are certain methods to remove the delaminated concrete, and then formwork is to be fixe. After that, the application of repair material like a dry pack, and wet pack, shotcrete, is carried out if reinforcement is not removed while fixing the pipe.
You can try one other method also, by fixing plate bonding in the beam on the bottom to enhance the flexural strength, you will have to rest the plate on the bricks, and for that, you will have to remove the top layer of the brick. You also may need to provide scaffolding if you are altering the load-bearing wall. As it is a load-bearing structure, if any alteration is done in the load-bearing wall, it should be done with the consultation of a structural engineer.
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nikeetasharma
Height of Instrument : It is the method which deals with the obtaining of RL of the line of collimation by adding BS reading of a known RL point. Thus, RL of the line of collimation is called the Height of Instrument. It is always measured from the benchmark. Hence the benchmark is the point on theRead more
It is the method which deals with the obtaining of RL of the line of collimation by adding BS reading of a known RL point. Thus, RL of the line of collimation is called the Height of Instrument. It is always measured from the benchmark. Hence the benchmark is the point on the sea derived from mean sea level.
– method to calculate RL;
height of collimation (H of C) = reduced level(R.L.) + backsight (B.S.)
reduced level (R.L.) = height of collimation (H of C) – foresight (F.S.)
reduced level (R.L.) = height of collimation (H of C) – intermediate sight (I.S.)
It is the method which gives the difference of elevation between consecutive points by comparing each point after the first that immediately preceding it. Rise and fall are indicated by the difference in staff reading. After that RL is found by adding the rise to or subtracting the fall from the reduced level of the preceding point.
– method to calculate RL;
fall (F) = foresight (F.S.) – backsight (B.S.)
fall (F) = intermediate sight (I.S.) – backsight (B.S.)
rise (R) = backsight (B.S.) – foresight (F.S.)
reduced level (R.L.) = precede reduced level + rise (R)
reduced level (R.L.) = precede reduce level – fall (F)
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