Design Of The Long-Shotr-Pile Composite Foundation’s Bearing Capacity And Settlement

With the development of foundation treatment technique, the appliance ofcomposite foundation is more widely in civil engineering the new foundation isapplied in the form of specific practical engineering. Among them, that the long-shortpile composite foundation as a typical new form of composite foundation,,it has beenmore and more attention of geotechnical engineering experts due to its economic andpractical while also facing a series of new problems. The long-short pile compositefoundation theory is not yet mature, and even there is no perfect design theory andcalculation method. For better promotion and development of this new compositefoundation it is particularly important for the systematic study of its working traits. Inthis paper, through combine the theoretical analysis and engineering practice, and bynumerical simulation analysis to analysis and discussion the long-short pilecomposite foundation.Under the basis of access to relevant documents, summarized the basic theoryuntil now about the long-short pile composite foundation at domestic and abroaddevelopment overview a variety of composite foundation bearing capacity andcalculation method of settlement, and derivate the formulato of the long-short pilecomposite foundationthe with the bearing capacity and settlement. Combined with theactual engineering example, through compare the use of the bearing capacity andcalculation method of settlement that derived to calculate and the test results of actualfield to verify the reliability of the long-short pile composite foundation, which isimportant reference value to theory in depth study and application of the long-shortpile composite foundationIn this paper, through the finite element software to analyze the long-short pilecomposite foundation by numerical simulation, exploring working properties and itsmechanism action of the long-short pile composite foundation,and bearingcharacteristics and settlement rules of the long-short pile composite foundation; and even compared the form of the piles, the best program of the long-short pilecomposite foundation is proposed.