Seawall safety real-time assessment method and special device

A special device and seawall technology, applied in the field of seawall safety real-time assessment methods and special devices, can solve problems affecting emergency management of marine disasters and complicated seawall damage mechanisms, so as to improve monitoring and forecasting functions and reduce storm surges Disaster risk, well-designed effects

Pending Publication Date: 2019-01-29
ZHEJIANG INST OF HYDRAULICS & ESTUARY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the action of extremely large storm surges, the damage of seawalls is often unavoidable. Because the damage mechanism of storm surges and typhoon waves to seawalls is relatively complicated, it is not only related to coastal dynamics, but also related to seawall design standards, structural forms, and other factors. Geographical location is directly related to
[0004] The existing marine disaster forecasting technology already has the ability to forecast hydrodynamic factors such as tide level and wave, but the safety of seawalls under the action of storm surges has not yet had an agreed-upon judgment index and method for early warning, which in turn affects marine disasters emergency management work

Method used

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  • Seawall safety real-time assessment method and special device
  • Seawall safety real-time assessment method and special device

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Experimental program
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Effect test

Embodiment 1

[0051] A special device for real-time assessment of seawall safety, including at least one alarm device, a computer, a hydrological acquisition device or a storm surge (tide level and wave) forecast model. The alarm device is used for early warning of seawall flooding or breach, and the computer is connected to the The alarm device also receives the hydrological data or storm surge level and wave forecast value of the hydrological acquisition device. The computer can process the received hydrological data or forecast value and decide whether the embankment is overrun or whether the embankment is broken according to the processing results. Control the alarm device.

[0052] The computer is connected to the alarm device and the hydrological collection device respectively, such as Figure 4 As shown, the connection mode between the computer and the alarm device and the hydrological collection device includes a cable connection or a radio connection or an optical coupling connection. ...

Embodiment 2

[0057] Reference Figure 1-2 Take a seawall as an example. The top and back slope protection surface of the seawall is made of square concrete blocks (30cm thick), the height of the wave wall is 1.0m, and the back slope slope is 1:3. According to the obtained tide level and wave Data to determine whether the seawall is breached:

[0058] (1) Obtain the structural parameters of the seawall according to step S2a;

[0059] (2) According to step S2b, use the acquired hydrological parameters and the standard formula to calculate the seawall over-wave volume of 0.27m 3 / (m.s);

[0060] (3) According to step S2c, it can be seen from Table 1a that the threshold of the amount of breaking waves corresponding to a square concrete block (30cm thick) is 0.26m 3 / (ms); From Table 1b, the wave-retaining wall correction coefficient shows that the height of the wave-retaining wall is 1.0m, here is 1.0; from the slope correction coefficient in Table 1c, the slope correction value of 1:3 is 1.0, so th...

Embodiment 3

[0063] The computer program control steps are as follows:

[0064] S1a: Read seawall parameters;

[0065] S1b: read hydrological parameters;

[0066] S1c: Decide whether to meet the flooding conditions, meet the pre-alarm of the control alarm device, and enter the next step if it is not satisfied;

[0067] S2b: Calculate the amount of surging waves;

[0068] S2c: Decide whether to meet the dike breach condition, if it is satisfied, control the alarm device to pre-alarm, do not meet the step of repeating S1b, output the calculation result and store the data file after the alarm; decide whether to meet the end condition, meet the end of the program, and repeat the step S1b . See the schematic diagram image 3 . Its purpose is to accurately obtain parameters such as tide level in front of the embankment, sea embankment over-wave volume, embankment over-wave volume threshold and other parameters according to the hydrological conditions and seawall structure, and then evaluate and predict...

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Abstract

A seawall safety real-time assessment method and special device are disclosed, which has at least one alarm device, a computer, a hydrological collection device or storm surge prediction model. The alarm device is used for early warning of seawall overflow or breakwater, the computer is connected with the alarm device. The computer is also connected with the hydrological collecting device or receives the storm surge forecast value. The computer can process the hydrological data collected by the hydrological collecting device or the received tidal level and wave forecast value and decide whether to overflow or break the dike according to the judgment index. The computer controls the alarm device according to the decision result. The invention can carry out real-time evaluation on the seawall safety under the action of the storm surge, realize the prediction and alarm of the seawall safety, and has high alarm accuracy, thereby providing a basis for starting the emergency management workin advance and reducing the loss of the marine disaster.

Description

Technical field [0001] The invention relates to the field of marine disaster prevention and mitigation, and in particular to a method and a special device for real-time assessment of seawall safety. Background technique [0002] Typhoon storm surge (hereinafter referred to as "storm surge") is a phenomenon of local sea turbulence or non-periodical abnormal rise (decrease) caused by strong winds and sudden changes in air pressure accompanied by a typhoon. The storm surge caused the tide to overflow and washed away the seawall, which in turn triggered flood disasters in coastal areas, which was extremely destructive and had a serious impact on coastal areas. Improving marine disaster risk prevention and control capabilities and reducing disaster losses have always been the focus of coastal areas. [0003] Seawall is an important damp and wave barrier in coastal areas. It can effectively resist storm surges and other marine natural disasters, protect the lives and property of people ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/0635G06Q50/26Y02E40/70Y04S10/50
Inventor 陈刚曾剑胡金春陈韬霄韩宇金新员鹏
Owner ZHEJIANG INST OF HYDRAULICS & ESTUARY
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