CN109902328B - Sea wall design method applicable to actual engineering - Google Patents
Sea wall design method applicable to actual engineering Download PDFInfo
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- CN109902328B CN109902328B CN201811024624.1A CN201811024624A CN109902328B CN 109902328 B CN109902328 B CN 109902328B CN 201811024624 A CN201811024624 A CN 201811024624A CN 109902328 B CN109902328 B CN 109902328B
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Abstract
The invention discloses a method for designing a sea wall for practical engineering, which belongs to the technical field of hydraulic engineering, fills in the blank of the design idea of the sea wall, and compared with the design specification of the sea wall, the method has clear design idea, is closer to the requirement of the practical engineering and is convenient for related professionals to understand and use. The method is combined with the existing computer numerical simulation technical means, and a solution idea is provided for the practical problems encountered in engineering. Although the dynamic spectrum balance equation of the wave calculation used in the patent is the same as that of the existing method, the specific method has great difference and is mainly embodied in that: the method provides that the measured data of the oceanographic observation station and the sea level station in the near sea area of the engineering are used as the basis for the calibration verification of the mathematical model, so that the calculation result of the mathematical model after the calibration and the verification is more reliable, and the safety and the economic performance of the sea wall structure design can be better guaranteed according to the calculation result.
Description
Technical Field
The invention belongs to the technical field of hydraulic engineering, and particularly relates to a sea wall design method applicable to actual engineering.
Background
The existing seawall engineering design needs to be developed according to the content of the seawall design specification requirement, and a unified seawall design scheme or flow is not provided at present, which brings great inconvenience to seawall designers in the field when developing related work. In addition, the seawall design specification is usually strong in generality, and part of contents of the specification deviate from the actual engineering design, which brings great challenges to practitioners.
Disclosure of Invention
(1) Technical scheme
In order to overcome the defects of the prior art, the invention provides a design method of a seawall for practical engineering, which is characterized by comprising the following steps:
1) analyzing the engineering demand analysis according to the concrete conditions of the engineering, and collecting the basic data related to weather, hydrology, social economy, engineering terrain and engineering geology;
2) determining the damp-proof or flood-proof standard of the seawall engineering according to the category and the scale of the protective object of the seawall;
3) determining design environment elements according to weather, hydrology and design standard data, wherein simulation parameters of the mathematical model comprise white cap dissipation, wave diffraction and wave breaking parameters, and simultaneously determining a sea wall line arrangement scheme and selecting a slope type or a vertical type wall type according to engineering terrain, geology, land acquisition conditions and engineering area wall materials;
4) designing the section of the seawall according to environmental elements, materials, construction, geology, design specifications and requirements of owners; aiming at the designed sea wall, combining environmental factors, developing a physical model test research on the section of the sea wall, researching the stability, strength and wave-crossing conditions of the type of the sea wall, developing a three-dimensional model test research on important engineering, and optimizing the designed section according to the test conditions;
the wave element utilizes the marine hydrological data and the tide level data of the near sea area as the basis, and uses a dynamic spectrum balance equation to calculate the wave condition of the engineering position, and the dynamic spectrum density conservation in the flow field, and the calculation formula is as follows:
wherein, N is dynamic spectrum density which is the ratio of the energy spectrum density E (sigma, theta) to the relative frequency sigma; item 1 on the left is the rate of change of N over time; items 2 and 3 represent the propagation of N in the x, y directions of the geographic coordinate space; item 4 is the variation of N in the relative frequency σ space due to flow field and water depth; item 5 is the propagation of N in the spectral distribution direction θ space; s is a source and sink term expressed by spectral density, and comprises wind energy input, nonlinear interaction between waves and bottom friction, white waves and broken energy loss; c x 、C y 、C σ And C θ Representing wave propagation velocities in x, y, σ, and θ spaces, respectively;
in the actual engineering design work of the seawall, the specific steps for carrying out wave factor calculation are as follows:
firstly, establishing a mathematical model according to the geographical position, the terrain and hydrological data near the engineering, wherein the range established by the mathematical model comprises an ocean monitoring station with actually measured ocean hydrological statistical data and a tide level station with actually measured tide level data, so that the model is verified by using the actually measured data to ensure the reliability of the calculation result of the mathematical model;
then, carrying out roughness parameter calibration and verification on the mathematical model by using the actually measured tide level data, and calibrating the simulation parameters and the wave boundary conditions of the mathematical model by using the actually measured wave element statistical data of the ocean station, so as to ensure that the set parameters of the model are reasonable;
and finally, carrying out mathematical wave model calculation by using the calibrated and verified mathematical model, and calculating the wave elements of the engineering position.
Further, in step 3), the environmental elements include a design tide level, a design wind speed and a design wave element.
Furthermore, after the step 4), experts in the field need to be invited to perform review on the engineering and seawall design, and the design is corrected and supplemented according to the review result.
(2) Advantageous effects
The invention has the beneficial effects that: the method fills the blank of the design idea of the seawall, and compared with the design standard of the seawall, the design idea of the method is clear and closer to the actual engineering requirement, thereby being convenient for the understanding and the application of related professionals. The method is combined with the existing computer numerical simulation technical means, and a solution idea is provided for the practical problems encountered in engineering. Although the dynamic spectrum balance equation of the wave calculation used in the patent is the same as that of the existing method, the specific method has great difference and is mainly embodied in that: the method provides the practical measurement data of the oceanographic observation station and the sea level station in the near sea area of the engineering as the basis for the calibration verification of the mathematical model, so that the calculation result of the mathematical model after calibration and verification is more reliable, and the safety and the economic performance of the sea wall structure design based on the calculation result can be better guaranteed.
Drawings
FIG. 1 is a block diagram of dike design concept;
FIG. 2 is a simulation of a mathematical model;
FIG. 3 is a diagram of the results of engineering position wave calculations.
Detailed Description
The technical solutions in the embodiments of the present invention are further clearly and completely described below with reference to the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
The seawall design method applicable to actual engineering is provided by taking civil and military seawall engineering as an example in the embodiment, and the seawall design idea is shown in a figure 1 and comprises the following steps:
1) analyzing the engineering demand analysis according to the concrete conditions of the engineering, and collecting the basic data related to weather, hydrology, social economy, engineering terrain and engineering geology;
2) determining the damp-proof or flood-proof standard of the seawall engineering according to the category and the scale of the protective object of the seawall;
3) determining design environment factors according to weather, hydrology and design standard data, determining a sea dike line arrangement scheme and selecting a slope type or a vertical dike type according to engineering terrain, geology, land acquisition conditions and dike body materials of an engineering region;
4) designing the section of the seawall according to environmental elements, materials, construction, geology, design specifications and requirements of owners; aiming at the designed sea wall, combining environmental factors, developing a physical model test research on the section of the sea wall, researching the stability, strength and wave-crossing conditions of the type of the sea wall, developing a three-dimensional model test research on important engineering, and optimizing the designed section according to the test conditions;
5) finally, the expert in the field is invited to carry out the review on the engineering and seawall design, and the design is corrected and supplemented according to the review result;
the wave element utilizes the marine hydrological data and the tide level data of the near sea area as the basis, and utilizes a dynamic spectrum balance equation to calculate the wave condition of the engineering position, and the dynamic spectrum density conservation in the flow field is as follows:
wherein, N is dynamic spectrum density which is the ratio of energy spectrum density E (sigma, theta) to relative frequency sigma; item 1 on the left is the rate of change of N over time; items 2 and 3 represent the propagation of N in the x, y directions of the geographic coordinate space; item 4 is the variation of N in the relative frequency σ space due to flow field and water depth; item 5 is the propagation of N in the spectral distribution direction θ space; s is a source and sink term expressed by spectral density, and comprises wind energy input, nonlinear interaction between waves and bottom friction, white waves and broken energy loss; c x 、C y 、C σ And C θ Representing wave propagation velocities in x, y, σ, and θ spaces, respectively;
and in the actual engineering design work of the seawall, the specific steps of carrying out wave element calculation are as follows: firstly, establishing a mathematical model according to the geographical position, the terrain and hydrological data near the engineering, wherein the range established by the mathematical model comprises an ocean monitoring station with actually measured ocean hydrological statistical data and a tide level station with actually measured tide level data, so that the model is verified by using the actually measured data to ensure the reliability of the calculation result of the mathematical model; then, carrying out roughness parameter calibration and verification on the mathematical model by using the actually measured tide level data, and calibrating the simulation parameters and the wave boundary conditions of the mathematical model by using the actually measured wave element statistical data of the ocean station, so as to ensure that the set parameters of the model are reasonable; and finally, carrying out mathematical wave model calculation by using the calibrated and verified mathematical model, and calculating the wave elements of the engineering position.
Specifically, this embodiment combines "changle foreign language wu embankment combination engineering" case detail this thinking calculates wave element process: 1. and (4) establishing a mathematical model by considering factors of engineering geographical position, terrain and hydrological data near the engineering, and establishing the mathematical model. The model range includes two marine observation stations of north ocean station, quan ocean station and three tidal level stations of plum blossom, three sands and quan. 2. The roughness parameters of the model are calibrated and verified by utilizing the actually measured tide level processes of three tide level stations of plum blossom, three sands and a puddle, and the boundary conditions and the model parameters (white cap dissipation, wave diffraction and wave breaking parameters) of the mathematical model are calibrated by utilizing the actually measured statistical wave data of north and the puddle ocean station, so that the reasonable setting of the parameters of the mathematical model is ensured. 3. Inputting the calibrated wave boundary conditions at the boundary of the mathematical model, calculating wave elements near the sea wall engineering under related design conditions, and designing the sea wall structure by taking the wave elements as design wave elements.
In addition, when the distance between the sea area where the hydrological data site is located and the engineering area is large and the computing capability of the computer is insufficient, a large-range mathematical model containing the engineering area and the sea area where the water level data site is located can be established, the model can be calibrated, and wave elements under the design engineering can be calculated. And then, establishing a wave mathematical model of the sea area near the engineering position, and obtaining wave elements of the engineering position by simulating and calculating the model, wherein the water level and the wave elements at the boundary position of the model can be obtained from the calculation result of the large-range mathematical model.
The calculation of the wave numerical value of the foreign language and martial seawall engineering comprises the following steps: (1) the calculation range of the wave mathematical model and the mathematical model are shown in figures 2-3. (2) And verifying the model. The engineering position wave calculation results are shown in fig. 3.
Wherein the tide level verification in the model verification is as follows:
wherein the wave height verification in the model verification is as follows:
the above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (3)
1. A design method of seawall for practical engineering is characterized by comprising the following steps:
1) analyzing the engineering demand analysis according to the concrete conditions of the engineering, and collecting the basic data related to weather, hydrology, social economy, engineering terrain and engineering geology;
2) determining the damp-proof or flood-proof standard of the seawall engineering according to the category and the scale of the protective object of the seawall;
3) determining design environment elements according to meteorological, hydrological and design standard data, wherein the environment elements comprise design tide level, design wind speed and design wave elements, and simultaneously determining a sea dike line arrangement scheme and selecting a slope type or a vertical dike type according to engineering terrain, geology, land acquisition conditions and engineering region dike body materials;
4) designing the section of the seawall according to environmental elements, materials, construction, geology, design specifications and requirements of owners; aiming at the designed sea wall, combining environmental factors, developing a physical model test research on the section of the sea wall, researching the stability, strength and wave-crossing conditions of the type of the sea wall, developing a three-dimensional model test research on important engineering, and optimizing the designed section according to the test conditions;
the wave element utilizes the marine hydrological data and the tide level data of the near sea area as the basis, and uses a dynamic spectrum balance equation to calculate the wave condition of the engineering position, and the dynamic spectrum density conservation in the flow field, and the calculation formula is as follows:
wherein, N is dynamic spectrum density which is the ratio of energy spectrum density E (sigma, theta) to relative frequency sigma; item 1 on the left is the rate of change of N over time; items 2 and 3 represent the propagation of N in the x, y directions of the geographic coordinate space; item 4 is the variation of N in the relative frequency σ space due to flow field and water depth; item 5 is the propagation of N in the spectral distribution direction θ space; s is a source and sink term expressed by spectral density, and comprises wind energy input, nonlinear interaction between waves and bottom friction, white waves and broken energy loss; c x 、C y 、C σ And C θ Representing wave propagation velocities in x, y, σ, and θ spaces, respectively;
in the actual engineering design work of the seawall, the specific steps for carrying out wave element calculation are as follows:
firstly, establishing a mathematical model according to the geographical position, the terrain and the hydrological data near the engineering, wherein the establishment range of the mathematical model comprises an ocean monitoring station with actually measured ocean hydrological statistical data and a tide level station with actually measured tide level data, so that the model can be verified by using the actually measured data to ensure the reliability of the calculation result of the mathematical model;
then, carrying out roughness parameter calibration and verification on the mathematical model by using the actually measured tide level data, and calibrating the simulation parameters and the wave boundary conditions of the mathematical model by using the actually measured wave element statistical data of the ocean station, so as to ensure that the set parameters of the model are reasonable;
and finally, carrying out mathematical wave model calculation by using the calibrated and verified mathematical model, and calculating the wave elements of the engineering position.
2. The method as claimed in claim 1, wherein the simulation parameters of the mathematical model include white cap dissipation, wave diffraction, and wave breaking parameters.
3. The method as claimed in claim 1, wherein after step 4), domain experts are invited to review the engineering and seawall design, and the design is corrected and supplemented according to the review result.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558460A (en) * | 1994-03-03 | 1996-09-24 | Jenkins; Scott A. | Apparatus for enhancing wave height in ocean waves |
| CN102191759A (en) * | 2011-04-20 | 2011-09-21 | 河海大学 | Novel breakwater and design method thereof |
| CN106677117A (en) * | 2017-03-22 | 2017-05-17 | 交通运输部天津水运工程科学研究所 | Automatic measuring device for seawall top wave overtopping rate of laboratory trough testing |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558460A (en) * | 1994-03-03 | 1996-09-24 | Jenkins; Scott A. | Apparatus for enhancing wave height in ocean waves |
| CN102191759A (en) * | 2011-04-20 | 2011-09-21 | 河海大学 | Novel breakwater and design method thereof |
| CN106677117A (en) * | 2017-03-22 | 2017-05-17 | 交通运输部天津水运工程科学研究所 | Automatic measuring device for seawall top wave overtopping rate of laboratory trough testing |
Non-Patent Citations (3)
| Title |
|---|
| 大型围垦工程海堤建设过程中围区内波浪传播研究;曾甄等;《水利水电技术》;20160920(第09期);全文 * |
| 波浪数学模型研究应用于海岛开发项目;王海旭等;《中国水运(下半月)》;20160315(第03期);全文 * |
| 浙东开敞式海区海塘工程建设实践与探讨;郑华;《中国优秀博硕士学位论文全文数据库(硕士)工程科技II辑》;20050215;全文 * |
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