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Navigation channel design and tide-bound water level determination method of tidal level and tidal current double-factor control

A determination method and two-factor technology, applied in computing, instrumentation, data processing applications, etc., can solve problems such as the inability to use dike gates and islands and reefs, and achieve the effect of optimal tidal level utilization and intuitive value selection.

Active Publication Date: 2017-09-19
SHANGHAI WATERWAY ENG DESIGN & CONSULTING CO LTD
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to solve the problem that the existing waterway design only considers the influence of a single factor of tidal level, and cannot be well used in complex sea areas such as dike entrances, islands and reefs, and provides a comprehensive consideration of the dual factors of tidal level and tidal current. Controlled channel design and tidal water level determination method

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  • Navigation channel design and tide-bound water level determination method of tidal level and tidal current double-factor control
  • Navigation channel design and tide-bound water level determination method of tidal level and tidal current double-factor control
  • Navigation channel design and tide-bound water level determination method of tidal level and tidal current double-factor control

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specific Embodiment

[0039] The inbound channel of the Yushan operation area of ​​Ningbo Port in Zhoushan is located in the middle of Zhoushan, and the channel is planned to be a two-way channel for 100,000-ton oil tankers to ride the tide. The channel is connected to the coastal east channel in the east and reaches the harbor basin waters of the Yushan operation area in the west. Ships entering the port pass through the public channel outside the Ma'ao mouth, the Guanmen channel, the Ma'ao inner channel and the Yushan channel in sequence, with a total length of about 72.1km. Among them, in the Guanmen Zongzishan-Longwangtiaozui section, there is a narrow mouth section with a length of about 2.5km, which has a relatively high flow velocity in some periods of time, which is a tidal current limiting section. The specific implementation steps of the present invention are now described in conjunction with the approach channel of the Yushan operation area of ​​Ningbo Port, Zhoushan. (This case only con...

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Abstract

The invention provides a navigation channel design and tide-bound water level determination method of tidal level and tidal current double-factor control. The method comprises the steps of (1) carrying out rational navigation channel segmentation on a navigation channel, (2) generalizing a ship navigation process and establishing a navigation time scale, (3) constructing a tidal level single factor tide-bound typical tidal curve, (4) combining the tidal level and a tidal current synchronous curve, and constructing a tidal current and tidal level double-factor control tide-bound typical tidal curve, (5) matching the navigation time scale and the typical tidal curve, if the a ship can avoid a current restriction period if the tidal level utilization is optimal, using a parallel interception method to determine a tide-bound water level, otherwise going to a next step, (6) carrying out typical navigation process analysis and selecting a best tidal level utilization one as the tide-bound water level, and (7) determining a navigation channel design bottom elevation according to the tide-bound water level and a designed navigation water depth. According to the method, a disadvantage that tidal current influence is ignored in existing navigation channel bottom elevation determination, a navigation channel bottom elevation design method under the tidal level and tidal current double-factor control is proposed, and the method can be applied to the navigation channel design and tide-bound water level determination of reefs with obvious tidal current influence, a break water entrance door and the like.

Description

technical field [0001] The invention relates to a waterway design and a method for determining a tidal water level, in particular to a waterway design and a tidal water level determination method controlled by two factors of tide level and tidal current, and belongs to the technical field of water transportation. Background technique [0002] The tidal level is one of the important parameters in the design of coastal waterways. The conditions of early channel construction were relatively simple. In the process of channel design, the determination of tidal water level often only considered the single factor of tidal level, which is feasible for ships to sail in sea areas that are not affected by tidal currents or are less affected by tidal currents. However, as the channel construction conditions become more complex, the impact of tidal currents on ship navigation cannot be ignored for channels that need to pass through narrow mouths of islands and reefs, breakwater gates, et...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/30
CPCG06Q50/40
Inventor 黄志扬徐元侯慷曾建峰
Owner SHANGHAI WATERWAY ENG DESIGN & CONSULTING CO LTD
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