Optimal design method and system for slope reinforcement with anti-slide piles

Patent metadata

Field	Value
Publication number	US-11459722-B2
Application number	US-202117515817-A
Country	US
Kind code	B2
Filing date	Nov 1, 2021
Priority date	Dec 25, 2020
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

An optimal design method and system for slope reinforcement with anti-slide piles includes: modeling a slope type to obtain a three-dimensional (3D) slope numerical calculation model; establishing different numerical calculation models for anti-slide piles according to different reinforcement schemes of the anti-slide piles; determining optimization indexes through a coupling analysis of the 3D slope numerical calculation model and the anti-slide pile numerical calculation model; calculating a comprehensive optimization value according to the optimization index; determining an optimal anti-slide pile reinforcement scheme according to the comprehensive optimization value, and determining whether the optimal anti-slide pile reinforcement scheme meets the optimization objective; and carrying out slope reinforcement according to the optimal anti-slide pile reinforcement scheme if yes. A multi-objective comprehensive optimization model including an optimization index system and comprehensive weights of optimization indexes is established.

First claim

What is claimed is:

1. An optimal design method for slope reinforcement with anti-slide piles, comprising the steps of:
determining a slope type of a slope to be reinforced with anti-slide piles and an optimization objective;
modeling the slope based on the slope type to obtain a three-dimensional (3D) slope numerical calculation model;
establishing different numerical calculation models for anti-slide piles according to different reinforcement schemes of the anti-slide piles, each reinforcement scheme comprising pile body parameters, pile locations, pile section parameters, pile lengths, and pile spacings;
determining optimization indexes through a coupling analysis of the 3D slope numerical calculation model and the anti-slide pile numerical calculation model, the optimization indexes comprising a factor of safety, a bending moment, a shear force and a deflection of the anti-slide piles, the factor of safety being a positive index, which is normalized as follows:

r

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min

the bending moment, the shear force, and the deflection of the anti-slide piles being negative indexes, which are normalized as follows:

r

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a (i, j)min and a (i, j)max respectively representing a minimum value and a maximum value of an i-th optimization index in a j-th anti-slide pile reinforcement scheme; r (i, j) represents an optimization index value after normalization, that is, the relative membership degree; α and β are constants, which satisfy α+β=100;
calculating a comprehensive optimization value according to the optimization index;
determining an optimal anti-slide pile reinforcement scheme according to the comprehensive optimization value, and determining whether the optimal anti-slide pile reinforcement scheme meets the optimization objective;
preparing corresponding piles according to the pile body parameters, the pile section parameters, and the pile lengths in the optimal anti-slide pile reinforcement scheme and driving the corresponding piles into the slope according to the pile locations a

Assignees

• Inst Geology & Geophysics Cas

Inventors

• Xue Lei
• Xu Chao
• Cui Yuan
• Zhai Mengyang
• Bu Fengchang
• Zhao Haijun
• Guo Songfeng

Classifications

• E02D17/207 Primary

  with means incorporating sheet piles or piles · CPC title

• G06F2111/06

  Multi-objective optimisation, e.g. Pareto optimisation using simulated annealing [SA], ant colony algorithms or genetic algorithms [GA] · CPC title

• G06F30/13 Primary

  Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads · CPC title

• G06F30/23

  using finite element methods [FEM] or finite difference methods [FDM] · CPC title

• G06F2111/10

  Numerical modelling · CPC title