CONSTRUCTION | ARCHITECTS | EARTHMOVING AND MACHINES
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Earthmoving and machines
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CONSTRUCTION | ARCHITECTS | EARTHMOVING AND MACHINES
The embankments must be implemented on land that has already been subjected to forest clearing and cleaning operations and whose surface has been removed topsoil, silt or loose soil that cannot be compacted
In all cases, the backfill shall be made in layers with a thickness as to provide adequate compaction. The materials used have characteristics of particle size, plasticity, and strength as required by the project
Specifications usually set the minimum density required as a percentage of the maximum density at optimum moisture. This minimum must be achieved everywhere. The uniformity of the embankments is highly strong (mainly in the Road), and areas that do not meet the standards must be reconstructed
Prior to the placement of the first layer, the seating surface of the embankment will undergo scarification of 30 cm and compaction to achieve a minimum density of 85%
The compaction is done in layers of maximum thickness 30 cm, except the uppers which may not exceed 15 cm. The Compaction equipment will be suitable to each soil type and must apply the necessary pressure for achieving the desired density.
It runs a test to determine the numbers of minimum passes of compaction equipment to achieve the required density
The Quality tests would be made before the 24 hours, at Roads is necessary to make 3 trials each 100 meters at the center, right side and left side respectively, in truck parking will be made 3 trials each 1000m2
The function of Inspector of Work
Verify the removal of topsoil
Check if the soil type provided meets the specifications as described in Soils Study
Observe the behavior of embankment, when compaction machines pass in order to identify weak areas that can be marked. If one’s recognize these weak areas, this places will be lifted, replaced and re-compacted in order to obtain homogeneous support of the embankment
Controlling the thickness of the layers of compaction (remember that if we need a compacted thickness of 30 cm, loose soil layer is 30% higher, i.e.| 39 cm)
Control of Proctor Test Run