The Settlement Analysis Of The Long-short-pile Composite Foundation

With the rapid development of society and economy, there are many material varieties with the related conception of the foundation design, many new conception have been proposed in the field of the foundation design, many new types of the foundation have been put into construction, the long-short-pile composite foundation is one of them.Firstly, the distribution of lateral friction of single pile is deduced by using bilinear model, and the settlement of single pile is calculated by MINDLIN elastic theory. Through the method mentioned above , a series of analytical solutions of the settlement of the composite piled foundation are deduced. The calculated results can be used directly into the analysis of the settlement of single pile.Secondly, based on the unique advantages of numerical test, the bearing mechanism and the distribution pattern of the additional stresses of the long-short-pile composite foundation with different pile-stiffness are studied. Some useful conclusions are obtained for the further research and design.Finally, on the basis of the synthesis analysis, it is the model and methods of settlement calculation that have been proposed, and it is convenient that it been put into practise.