Analysis And Application Of Pile Raft Foundation For High-rise Building Pile Reinforcement Strengthening

Along with the rapid development of the national economy, more and more high-risebuildings. Piled raft foundation settlement control and the superiority of the bearing capacityof being widely used, but in the building design, construction and other factors led to a seriousshortage of carrying capacity, piling reinforcement measures need to be taken. Manyengineering examples which are taken to boarding routine in pile foundation reinforcement isbound to cause a great waste. In this paper, we study the application of composite long-shortpile foundation strengthening pile in pile raft foundation:According to the situation of piling reinforced piled raft foundation for high-rise buildings,explains the concept of long-short pile foundation and the difference between the length of thepile composite foundation, proposes the design ideas of piled raft foundation pilereinforcement reinforcement and existing problems. The combination of ANSYS software touse the mapped meshing and consider piled raft foundation numerical model, the pile raftconstitutive model, soil constitutive model, the constitutive model of the contact surfacebetween pile and soil, and soil nonlinear elastic problem, then using the contact mode of rigid-flexible body, to make finite element analysis of piled raft foundation piling reinforcementvertical Bearing Capacity. Last, got the settlement of pile foundation and pile top force in theend bearing pile or pile of two different types of piles with pile length, pile diameterreinforcing trends. On two types of piles of data are compared and analyzed, some significantconclusions are obtained.A high-rise building is piled raft foundation pile reinforcement reinforcement of bearingcapacity of pile foundation, in the original part of the case, end bearing pile driving part, so asto form long-short pile composite. Analysis test results of pile reinforcement engineering,filling pile has achieved good effect, avoids the boarding for pile foundation, for reference ofEngineering practice.