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Adjustable underground curtain suitable for coastal underground reservoir and construction method of adjustable underground curtain

An underground reservoir, adjustable technology, applied in marine engineering, water conservancy engineering, barrage/weir, etc., can solve problems such as severe rise of groundwater level, waterlogging, inability to deal with intrusion, etc., to ensure freshwater supply and increase reserves Effect

Pending Publication Date: 2022-04-12
OCEAN UNIV OF CHINA
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Problems solved by technology

The underground water-blocking curtain cuts off the hydraulic connection between the underground seawater and freshwater, but it is easy to cause a series of ecological environments such as the enrichment of terrestrial pollutants in the aquifer upstream of the underground curtain, the sharp rise of the groundwater level, and the occurrence of waterlogging and secondary salinization of the soil. question
The top-hanging and sinking underground curtains are only suitable for underground hydraulic conditions where the groundwater table is higher than sea level, and cannot cope with this kind of backflow seawater intrusion

Method used

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  • Adjustable underground curtain suitable for coastal underground reservoir and construction method of adjustable underground curtain
  • Adjustable underground curtain suitable for coastal underground reservoir and construction method of adjustable underground curtain
  • Adjustable underground curtain suitable for coastal underground reservoir and construction method of adjustable underground curtain

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Embodiment Construction

[0029] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0030] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.

[0031] Combine below Figure 1 to Figure 4 The adjustable underground curtain suitable for the coastal underground reservoir and its construction method according to the embodiment of the present invention w...

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Abstract

The invention provides an adjustable underground curtain suitable for a coastal underground reservoir and a construction method of the adjustable underground curtain. According to hydrogeological conditions of a coastal area, related areas such as underground fresh water and seawater invasion are determined; according to the seawater invasion area, the construction position of the adjustable underground curtain is selected, the adjustable underground curtain needs to be completely cut off the seawater invasion area, the upper portion of the adjustable underground curtain is built to the ground surface, the bottom of the adjustable underground curtain is built to the bottom layer impermeable bedrock, and the underground curtain wall is slightly higher than the highest sea level of the local sea level; the adjustable underground curtain comprises fixed underground walls and adjustable gates, and the adjustable gates and the fixed underground walls are distributed alternately. By means of the technical scheme, the opening size of the underground curtain gate is adjusted in real time, seawater backflow type invasion in the dry season is prevented, and soil salinization in the coastal area in the wet season is avoided.

Description

technical field [0001] The invention relates to the technical field of prevention and control of seawater intrusion, in particular to an adjustable underground curtain suitable for coastal underground reservoirs and a construction method thereof. Background technique [0002] The overexploitation of groundwater resources and the rise of sea level caused by global warming have led to the intrusion of saline water into inland aquifers in coastal areas (referred to as seawater intrusion). The problem of seawater intrusion has become a huge challenge for the management of groundwater resources in coastal aquifers around the world. Especially in the dry season in the coastal area of ​​northern my country, the rainfall is small, and a large amount of groundwater is exploited to form a regional groundwater sinking funnel. At this time, the groundwater table is lower than the sea level, so that the reverse flow of seawater intrusion occurs. Seawater intrusion can lead to deteriorat...

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Application Information

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IPC IPC(8): E02B3/00E02B3/06E02B3/16E02B8/04E02D19/06E02D19/18
Inventor 常钦鹏郑天元高晨晨郑西来
Owner OCEAN UNIV OF CHINA
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