Quote:
Originally Posted by Mr Downtown
For the average 35-story highrise, is there a big cost difference between caissons and driving H-piles?
People are asking me why Burnham Pointe and 900 South Clark need H-piles when Printers Corner and Vetro used caissons.
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I'm pretty sure there is a huge difference between the cost of driving piles and drilling cassions. Cassions require and assload of work and equipement while piles are a relatively simple concept, bang it into the ground and build something on it. So I would imagine that cassions are more expensive in the vast majority of cases.
When it comes to Burham Pointe and 900 S clark, vs Printers Corner and Vetro, its got to do with the soil. The ground around here is really screwed up so depending where you are in the city you could be building almost directly on clay, or on top of what is basically quicksand...
There, I hope that answered it, I'm no expert, but thats my understanding of it, correct me if I am wrong people!