| The pile is an ancient basis in the form and so far is still widely used and constantly improved for the development. In recent years, with the rapid development of economic construction, the foundation establishment and its scale in our country become larger and larger. In civil, transportation and hydraulic engineering, soft foundations and their treatment are often encountered. Because there are many advantages of piles, such as simple technique, better quality, fast construction, high stability and convenient detection, it has been widely used in the treatment of soft foundations. Nevertheless, in the theoretical analysis of pile foundation, there is still much to be further improved, the horizontal bearing capacity of pile foundation analysis is one important aspect.In current engineering practice, the pile foundation is still widely used to bear the load levels of practice, however, the study of the horizontal bearing capacity of pile foundation is not yet mature. Past studies are often conducted by the test method and theoretical analysis, made a lot of test data and research results. However, because of the piles under horizontal loads-soil interaction problems related to many factors, such as the choice of the foundation model, the choice of the pile model under horizontal loads the pile soil system complexity and limitations of the group pile foundation model test, etc., so there are a lot of work to be carried out. Related to the bearing capacity of pile foundation level of engineering accidents is increasing year by year in recent years, one of the famous Shanghai " Lotus Riverside " Residential overall dumping, Shengli Oilfield, the45-degree tilt of the offshore platforms and other accidents.Described above, the authors believe it is necessary to further study of the horizontal bearing capacity of pile foundation. On the basis of previous studies, this paper uses the finite difference method numerical analysis of pile-soil model under horizontal loading. Advantage of the finite difference numerical simulation using FLAC3D program, Moore-Coulomb failure criterion to simulate the situation of single piles under horizontal loads, the same time, the simulation can easily pile length, pile diameter and horizontal loads adjustment, compared with the theoretical analysis method and test methods, has the advantages of simple, feasible, and more in line with the actual situation. The summary of the results of numerical analysis, some of the theory, but also made a number of new insights, for reference. |