Abstract
As an effective retaining structure in the landslide control project, anti slide pile has been
widely used in engineering practice. The design and calculation of anti slide pile is mainly
based on trial calculation. Firstly according to the landslide thrust parameters of anti slide pile
(pile length, pile section size, anchorage depth, pile spacing, etc.) to obtain the maximum
bending moment, shearing force and position, through the foundation strength check, if the
anti slide pile in foundation elastic stress exceeds the allowable stress of formation or far less
than the allowable stratum the stress value, then adjust the pile parameters, re calculation,
until it meets the requirements, and finally reinforcement calculation. Although the method is
clear, but the calculation process is cumbersome, the work efficiency is relatively low, can not
comply with the current trend of the development of the information age. And the final
parameters are only a set of feasible solutions that meet the design requirements, not the
optimal values. Therefore, it is an urgent problem to develop a simple, practical and
visualized software for optimal design of anti slide piles.
Based on the basic theory of anti slide pile design calculation, using MATLAB as a
development tool, developed three module for calculating landslide thrust calculation, internal
force calculation and reinforcement, the software of anti slide pile design. Secondly, on the
basis of the anti slide pile design calculation software, the differential evolution algorithm is
introduced to the optimization design of anti slide pile, a new anti slide pile optimization
design theory is put forward, and the preparation of the interactive optimization design of anti
slide pile application software, the anti slide pile continuous and discrete variable
optimization type variables optimization design. Finally, through the engineering example, the
paper compares the material cost of the three variables, the continuous variable optimization
design, discrete variable optimization design and the traditional design of anti slide pile.
The result shows that the stability and reliability of the software, a new optimization
method proposed in this paper, the optimization effect and work efficiency and convenience
compared with the traditional method has greatly improved, and laid a good foundation for
the practical application of anti slide pile optimization design.
Key words: landslide thrust，internal force of pile，pile reinforcement，differential evolution
algorithm，optimized design of anti-slide pile
