Soil Nailing Wall, Cantilever Pile With A Single Fulcrum Pile Board Support Structure Calculations And Economic Studies

In this paper, according to the existing calculation methods, the calculation program s with Matlab language for soil nailing wall, cantilever pile and pile-plate with single support are developed. For soil nailing wall structure, based on the advanced computer technology, the calculation method is improved. Thus the search path of arc sliding surface will be much exact, and this program can automatically search the worst position of the arc sliding surface. For cantilever pile and pile-plate with single support structure, so long as the parameters are inputted, the program can automatically the strength, deformation and stability of the structures, and can output the engineering cost of the structures. In addition, after checking the correctness of the program, a series of engineering practices are calculated. By analyzing calculation results, the engineering cost changes of the mentioned three supporting structures with the changes of different parameters are discussed, on which many reasonable advices for practical engineering design are presented for designer. If correlative design parameters and soil parameters are known, with the program many deign parameters in real deign can be directly obtained. Finally, for the pits with same soil parameters, three supporting structures are designed. In the course of deign, the engineering costs are regarded as objective function, the best supporting form for the deep pits are studied, which shows that the choose of structure form is of great importance, and can provide favorable conditions for the further study of the form choose of deep pit. However, to use the program conveniently, the deign and calculation tables of supporting structures under the different load combinations can be worked out, which can be used directly in deign.The contrast of the results of the same engineering project with program and these of real condition shows that the calculation model presented in this paper is reasonable, calculation method is concise and applicable, the program is feasible, which is of certain guidance for the latter engineering design. The analysis, calculation and research idea are true of other soil region and supporting structures.