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A multi-objective optimal management method for groundwater in land subsidence areas

A multi-objective optimization and land subsidence technology, applied in the field of multi-objective optimization management of groundwater in land subsidence areas, can solve problems such as low calculation efficiency, strong randomness of human operation, and inability to realize global search, so as to improve convergence and improve selection strategies , enhance the effect of diversity and convergence

Active Publication Date: 2019-05-21
HOHAI UNIV
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Problems solved by technology

The optimal management plan of groundwater resources formulated by this method has obvious limitations, low computational efficiency, strong randomness of human operation, and cannot realize global search in the solution domain of feasible solutions, and this method cannot solve multi-objective optimal management problems.

Method used

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  • A multi-objective optimal management method for groundwater in land subsidence areas
  • A multi-objective optimal management method for groundwater in land subsidence areas
  • A multi-objective optimal management method for groundwater in land subsidence areas

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Embodiment Construction

[0036] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] Such as figure 1 As shown, a multi-objective optimal management method for groundwater in land subsidence areas includes the following steps:

[0038] Step 1: Establish a groundwater land subsidence simulation model to describe the temporal and spatial distribution of groundwater head and land subsidence in the land subsidence area.

[0039]The invention adopts the SUB-WT model introduced by the United States Geological Survey (USGS) to simulate the vertical compression variation of the soil layer caused by the change of soil water storage in the discontinuous formation. SUB-WT is modified and upgraded from the IBS3 subroutine in MODFLOW. It maintains the original input and output formats of MODFLOW. The parameter files required by SUB-WT are read from the "SWT" input file, which is convenient for familiarity with MODFLOW. Users us...

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Abstract

The invention discloses a multi-target optimization management method for underground water in a land subsidence region, and the method comprises the steps: firstly building an underground water land subsidence analog model; secondly building an optimization management model which comprises two target functions: the total pumping amount and the total land subsidence amount after the mining of underground water; thirdly carrying out the coupling of the underground water land subsidence analog model and the optimization management model; fourthly solving the weighted solution of the two target functions through employing an EMOTS algorithm; finally substituting the weighted solution into the underground water land subsidence analog model, and predicting the condition of land subsidence. The method builds the underground water simulation-optimization coupling model giving consideration to the constraint of land subsidence, employs the multi-target evolution solving technology to achieve the solving of a multi-target optimization management problem, is high in calculation efficiency, and is stable and reliable in calculation result.

Description

technical field [0001] The invention belongs to the fields of hydrology and water resource management, and in particular relates to a multi-objective optimal management method for groundwater in land subsidence areas. Background technique [0002] The scientific management of groundwater resources in land subsidence areas is an important resource and environmental issue. It involves two core issues: the rational development and utilization of groundwater resources and the prevention and control of land subsidence. The contradiction between subsidence prevention and groundwater exploitation has become a difficult problem for geo-environmental workers to solve, and a fixed technical method system has not yet been formed. [0003] So far, the main technical means to realize the management of groundwater resources in land subsidence areas include: [0004] (1) By delineating the red line of groundwater development in key land subsidence areas and combining with the regional gro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG06Q10/04G06Q50/06
Inventor 杨蕴王锦国周志芳
Owner HOHAI UNIV
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