Research On The Numerical Analysis And Applications Of The Cast-in-situ Pile

Squeezed branch pile is more domestic and foreign research and application of pile foundation form, since improved branch pile end bearing capacity of piles, pile length can be reduced to improve the vertical bearing capacity, deformation under load,seismic performance small advantages of the increase and improve the carrying capacity of piles has a significant impact, is an important new scientific and technological achievements. In this paper, a bit of the above characteristics.Firstly,In this paper, the theory of cast-in-situ pile are summarized, and briefly introduces the characteristics of a cigarette cast-in-situ pile, construction technology, encountered in the construction of the problems and solving methods and branch dish pile disadvantages and applicability, introduces the branch dish piles in crowded expanding process of soil deformation analysis and several common cast-in-situ pile bearing capacity calculation formula and finite element theory. Finite element method has become analysis geotechnical engineering problems of practical and effective means. With han gang branch cast-in-situ pile engineering for example, will cast-in-situ pile force situation of disk is simplified to a planar problem to numerical simulation. According to the calculation result analysis of the forces and cast-in-situ pile deformation. On this basis, through the pile by applying different load of analysis of deformation team dish pile bearing capacity.Secondly,Using FLAC software engineering practice this soil modeling analysis, soil using ideal elastic-plastic constitutive model, model using the failure criterion middle-earth Moore - Coulomb (Mohr - Coulomb) yield criterion description, pile using (pile) units. Initial field establishment, the soil load, this force with the soil of initial stress exactly balances, making soil initial displacement is zero. Then simulated, finally to branch plate force analysis, pile and changing parameters, it is concluded that the simulated reasonable simulation results, the rationality of the validation of finite element simulation.