Of bored piles in the process of de

Of bored piles in the process of design, construction and test pile stress analysis, based on the mechanism of interaction of piles and soil, the pile test results are in-depth study of parameter evaluation and bearing capacity estimation, put forward the axial stress of pile, pile Zhou Ma resistance, pile tip resistance and practical calculation method, and through the test pile as an example, using the classical theory of limit equilibrium for the computation of ultimate bearing capacity of rock-socketed pile end further consider the pile end embedding the foundation bearing capacity of rock and soil under confining pressure increase, the design and construction of rock-socketed bored perfusion pile has a certain reference value