Steel sheet pile is a kind of foundation pit supporting structure. It has the characteristics of high strength, strong adaptability, compact combination, good water leakage, simple construction, fast speed, repeated use of the temporary project and so on. And the premise of these good performance is that it must meet the design requirements of its internal force. Steel sheet pile internal force analysis is to calculate the stress of pz 27 sheet pile bending joint, the corresponding calculation according to the minimum depth of steel sheet pile in actual construction process, and the simplified straight beam design check calculate, but it must be emphasized that, because the soil condition is not the uncertainty and variability, the depth of the calculation process must retain a certain margin must be multiplied by a margin factor, the coefficient 1.1-1.2 is the best selection.
The support system is mainly the analysis of internal force calculation of purlin and bar (or anchor) is the internal force of the purlin as continuous beams under uniformly distributed load, calculation of design criteria by engineering mechanics and structural mechanics design calculation and check corresponding. In the process of steel sheet pile construction, the specific selection of steel sheet pile according to the characteristics of the pit project, sheet pile retaining wall design through the comprehensive comparison of economic, technical and construction period, and finally optimize, from the overall consideration of the cost of the project to get the best choice. In the large-scale water conservancy construction site, Requirements for inspection of sheet piles in constructio the use of steel sheet pile must be considered in many aspects.