Evaluation method of dynamic matching degree between water transportation and land transportation for cascade reservoir group

Abstract

The invention discloses a method for evaluating the dynamic matching degree between water transport and land transport oriented to cascade reservoir groups, and relates to the fields of shipping development planning and comprehensive traffic design of cascade reservoir groups. The present invention faces the cascade reservoir group, according to the dynamic change characteristics of the waterway transportation capacity of the reservoir area, based on the principle of gray correlation analysis, with the goal of maximizing the matching degree of dynamic transport capacity between the waterway of the cascade reservoir group reservoir area and the interconnected land road, through Within the known time period sequence, the sequence in which the demand for material transportation changes with time is given; determine the upper and lower limits of the waterway transport capacity of the cascade reservoir area and the upper limit of the land transport capacity of the corresponding land channel; calculate the cascade transport capacity at each moment The sum of the matching degree of the water transport capacity of the channel in the reservoir area and the corresponding land transport capacity is repeated for multiple iterations to obtain the optimal matching state. This method can make the distribution of transport capacity between channel water transport and interconnected land transport in the reservoir area more reasonable, and maximize the shipping capacity of the cascade reservoir group.

Description

technical field [0001] The invention relates to the field of shipping development planning and comprehensive traffic design of cascade reservoir groups, in particular to a method for evaluating the dynamic matching degree between water transportation and land transportation oriented to cascade reservoir groups. Background technique [0002] In the context of the comprehensive development of cascade water conservancy projects in the basin, the shipping capacity of the cascade reservoir area is affected by the freight demand and other reservoir scheduling tasks such as flood control, power generation, and irrigation. The existing technology mainly focuses on improving the waterway transportation capacity of the reservoir area through channel regulation, optimization of navigable water flow conditions, and multi-objective reservoir scheduling under the consideration of the above-mentioned influences. The dynamic evolution process of the theoretical transport capacity and its in...

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Problems solved by technology

The existing technology mainly focuses on improving the waterway transportation capacity of the reservoir area through channel regulation, optimization of navigable water flow conditions, and multi-objective reservoir scheduling under the consideration of the above-mentioned influences. The dynamic evolution process of the theoretical transport capacity and its interconnected land transport capacity cannot accurately evaluate the matching degree between water transport and land transport, and there are limitations, resulting in a mismatch between planned water transport capacity and land transport capacity, resulting in capacity allocation. Unreasonable, cascaded reservoir group shipping development planning and the actual demand for comprehensive traffic design have a large gap

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