Lession 4: Measuring net plug and locate works

After the owner handed the pile to mold and mold rear elevations, contractors will lead to landmark buildings, building the benchmark for construction and testing. The benchmark is made of concrete, placed at the location of the stable, certainly not in the area of construction and be protective barriers. The benchmark bond was deployed along the routes form the grid control mode.

 

The drawing grid control will have to show the relationship between the standard mold together, between the benchmark with a score of important navigation works with the metrics angle measure closed loop and located between them (the average was calculated wrong) with the correct number.

 

From the benchmark works, the contractor would lead to the sending of the construction phase. The post is made of 60x60x700mm wood pile close deep into the ground, surrounding masonry protection, there are nail positioning, and also covered for sure. In the course of construction and will regularly check the accuracy and stability of the sender. If there is doubt about the accuracy should check back from the benchmark works.

 

Determining the location of the works on the premises and is conducted according to the sequence:

-First, to identify the main lines of works (plays the axial positioning works, located 20 m/50 mold). The piles of this positioning is made of 40x40x500mm wood, on top of the pile has nailed the positioning.

-Then, take the main lines as standard measuring angles on both sides to determine the cubic shape earthworks. Based on design drawings (sections), its surface is then "ga" for the earthworks.

-The kick-"ga" is played with wooden shelves, on the wood specified hemorrhage: hemorrhage at its core, natural ground in position to try to pile, slope roof we dig down Connie (Connie's legs) or cut up (Connie's peak) from a standard nail points.

-The mold must retain during the process of construction and Commission.

-The benchmark works are preserved in order to monitor and evaluate the deformation of buildings during the operation.