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Contiguous Piling

Update:2017-04-14   View(s):1649   Keywords :Piling Pipe,SSAW steel pipe,welded pipe,sawh steel pipe,PILES
Usually this technique is appropriate where soil water levels are below the ultimate depth of excavation and to keep subsoils that are cohesive and stiff.
Piling pipe diameters range between 900mm and 450mm and are typically installed at pile hearts of between 500 and 1000mm respectively thus leaving gaps between the piles between 100 and 15 mm.
Perfect for water bearing strata and free geology
Contiguous piles are an economical and practical alternative when coping with issues including ground water or strata that are really loose; 
Such a building is in many ways much like the contiguous bored pile system, except the opening between the primary piles is full of a secondary ‘soft pile’ consisting an unreinforced poor concrete mix built to a depth below the depth of excavation that is closing. This type of construction ensures that water entrance into the following excavation is significantly reduced.
The process for building secant piles save the secondary pile isn’t soft but built of concrete similar to the primary pile, is much like interlocking piles and strengthened in a similar way to the primary piling pipe.
A secant pile wall when finished is an affordable option to diaphragm wall building.
This wall system is frequently used in uses that were long-term. Structural piles are installed with a 100mm difference between piling pipe usually at spacing’s. The land is so exposed during excavation but will frequently self support briefly due to “arching”. This approach is appropriate in various grounds where groundwater lies below the maximum excavation depth.
Contiguous piling vs Tired Piles
Tired piles are replacement piles which are hefty base used to support hefty and tall structural buildings and bridges. Drilled piling includes using a hydraulically or mechanically worked boring rig to drill a hole into the earth.

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