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Optimal design method of foundation pit dewatering based on genetic algorithm and groundwater model

A genetic algorithm and optimization design technology, applied in the direction of design optimization/simulation, calculation, special data processing applications, etc., can solve problems such as large construction costs, failure to meet project construction precipitation requirements, etc., achieve high calculation efficiency, and ensure the best search results The ability of optimal solution and the effect of minimum economic cost

Pending Publication Date: 2019-01-01
江苏地基工程有限公司
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  • Claims
  • Application Information

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Problems solved by technology

This method will generate large construction costs or fail to meet the precipitation requirements of engineering construction.

Method used

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  • Optimal design method of foundation pit dewatering based on genetic algorithm and groundwater model
  • Optimal design method of foundation pit dewatering based on genetic algorithm and groundwater model
  • Optimal design method of foundation pit dewatering based on genetic algorithm and groundwater model

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Embodiment

[0052] A foundation pit dewatering optimization design method based on genetic algorithm and groundwater model, as shown in Figure 1, the solution steps of the simulation optimization method:

[0053] 1) Generate an initial solution

[0054] The position and flow rate of the precipitation well 1 are represented by real number coding, and then the initial population is randomly generated by the Latin Hypercube Sample (LHS), which can generate variable combinations uniformly distributed in the decision variable space. It is beneficial to improve the global optimization performance of the algorithm;

[0055] 2) Evaluation population

[0056] Decode each individual in the population, and then input it into the groundwater flow model MODFLOW-2005-2005, run the model and output the groundwater level value, and then solve the objective function and judgment constraints of the management model;

[0057] 3) Determine whether the stop condition is met

[0058]In the optimization proc...

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Abstract

The invention discloses a foundation pit dewatering optimization design method based on a genetic algorithm and a groundwater model. The technique is based on the combination of genetic algorithm andgroundwater flow model MODFLOW-2005 coupling, a design method of simulation optimization is formed systematically. Firstly, the numerical model of groundwater flow in and around the foundation pit isestablished to describe the change of groundwater flow field accurately. Then an optimization model is established to minimize the cost of dewatering, and the optimal dewatering decision scheme is obtained by repeatedly using the running groundwater flow simulation model. The technology has a strong practicability in the foundation pit dewatering process, and can provide an efficient and feasiblelow-cost dewatering scheme for the foundation pit dewatering process.

Description

technical field [0001] The invention relates to the field of groundwater science and engineering, in particular to a foundation pit dewatering optimization design method based on a genetic algorithm and a groundwater model. Background technique [0002] During the construction of the foundation pit project, in order to meet the excavation requirements of the foundation pit, it is necessary to reduce the groundwater level at the bottom of the foundation pit. At present, during the dewatering process of the foundation pit, the dewatering wells are generally evenly arranged at a certain distance, and the pumping flow rate of all single wells is calculated using the analytical solution. This method will generate large construction costs or fail to meet the precipitation requirements of engineering construction. Therefore, it is necessary to use optimization technology to scientifically manage the spatial distribution of precipitation wells, and to reduce the cost of engineering...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 杨伟文宋健陈家冬周曙东周芳
Owner 江苏地基工程有限公司