Open shield
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Open shield
The choice of use of this type of drilling is largely influenced by the type of ground to be drilled.
- It is generally used for stable soils and without buildings on the surface.
- It is a suitable and economical solution in non-urban areas.
The absence of water tables is essential and the ground to be drilled must be cohesive. Its use is not advisable in very loose and cohesionless soils, very resistant or in the presence of water.
- Stable land
- No water present
The execution of open shield pile driving is carried out by means of a shield that incorporates a drilling element, which varies according to the terrain to be excavated, bucket, miner, pickaxe, etc.
The extraction is carried out by means of trolleys, the shield is guided by orienting the moving part of the machine by means of the orientation cylinders and aided by the laser that hits a target and the levels that indicate the trend.