Discussion About The Layout Of The Ring Beam Supporting System

In deep foundation pit supporting structure, after many years of engineering practice, the ring beam supporting structure has an irreplaceable advantage in the large area of foundation pit support because of its large construction work area and good mechanical performance. Ring beam supporting structure is widely used in practical engineering, although the structure of the ring beam has been studied, studied by the related scholars for the study of the corresponding. The corresponding theoretical system is used to guide practice. However, with the foundation pit boundary more and more irregular, some other problems are also appeared in the application of the system. In this paper, based on the current status of the ring beam supporting structure, some of the ring beam is still not very clear in somewhere, using the finite element analysis software MIDAS-GTS, the main work is as follows:(1) Summarized the development and existing problems of the deep foundation pit supporting system, and the applicable scope of various supporting system, the development course of the ring beam system is described.(2) Using truss element finite element of ring beam system of plane calculation, the restriction of plane calculation were discussed, and horizontal stiffness coefficient of the ring beam system was summed up,and how the different ratio about the ring beam stiffness and support stiffness influence the inner forces are analyzed.(3)Because of the irregularity of the boundary of the foundation pit, the specific position of the ring beam is often varied, what influence the ring beam system is calculated by the finite element method.(4)The characteristics of the single ring and double ring and truss ring support system are summarized and compared with the finite element method, also the advantage of double ring and truss ring.