A method, device, equipment and storage medium for determining arch dam shape
By analyzing the impact of the pressure aquifer in the dam site on the deformation of the arch dam foundation, and combining the load of the hydraulic building to calculate the stress and deformation of the arch dam structure, the failure to effectively consider the changes in hydrogeological conditions in the existing technology is solved. Safety risk issues have improved the safety of the arch dam structure.
Patent Information
- Application Number
- CN202410616662.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2044-05-17
AI Technical Summary
The existing arch dam design specifications fail to effectively consider the active deformation of the arch dam foundation caused by changes in hydrogeological conditions, resulting in safety risks in the arch dam structure during operation.
By determining whether there is a pressure-bearing aquifer in the dam site area and analyzing the effect of the water level change on the pore water pressure of the pressure-bearing aquifer, based on this, the deformation of the arch dam foundation caused by the pressure-bearing aquifer is determined, combined with the preset hydraulic work The building load acts on the arch dam structure, and its stress and deformation are calculated until the safety control indicators of the design specifications are met.
The safety of the arch dam structure is improved, and by considering the active deformation of the foundation in advance, the difference between the design and actual operating status is reduced, and the safety risks are reduced.
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Figure CN118504087B_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of data processing, and in particular to a method, device, equipment and storage medium for determining the shape of an arch dam. Background Art
[0002] At present, in the arch dam design specifications, the probabilistic limit state method, the single safety factor method or the allowable stress method are usually used for arch dam structure design. During the design, it is necessary to consider various effects including deadweight, hydrostatic pressure, temperature change, uplift pressure, sediment pressure, wave pressure, dynamic water pressure, ice pressure and earthquake action.
[0003] However, the combination of actions under different design conditions usually does not include the influence of active deformation of the arch dam foundation caused by changes in hydrogeological conditions. The influence of this active deformation is often handled in a "post-management" mode, that is, it is analyzed and managed after it occurs during operation, resulting in safety risks in the actual operation of the arch dam structure. Therefore, how to improve the safety of the arch dam structure has become a technical problem that needs to be solved urgently. Summary of the invention
[0004] In order to solve the above technical problems, the embodiments of the present disclosure provide a method, device, equipment and storage medium for determining the shape of an arch dam.
[0005] In a first aspect, the present disclosure provides a method for determining an arch dam shape, the method comprising:
[0006] If it is determined that there is a confined aquifer in the dam site area, determine whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer; wherein the dam site area is used to represent the area where the arch dam is built, and the reservoir water is used to represent the upstream reservoir water formed by the water storage of the arch dam;
[0007] If it is determined that the water level change of the reservoir water affects the pore water pressure of the confined aquifer, then based on the water level change of the reservoir water, determining the foundation deformation of the arch dam caused by the confined aquifer;
[0008] Applying the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure;
[0009] If it is determined that the stress and deformation of the arch dam structure meet the safety control indicators of stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam.
[0010] In an optional embodiment, the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam, and after determining the stress and deformation of the arch dam structure, the method further includes:
[0011] If it is determined that the stress and deformation of the arch dam structure do not meet the safety control index of the stress and deformation of the preset arch dam design specification, adjusting the basic shape of the arch dam based on the stress and deformation of the arch dam structure to obtain an adjusted arch dam shape;
[0012] The adjusted arch dam shape is used as the basic shape of the arch dam, and the steps of determining the stress and deformation of the arch dam structure by subjecting the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification to the arch dam structure corresponding to the basic shape of the arch dam are continued, until the stress and deformation of the arch dam structure meet the safety control indicators of the stress and deformation of the preset arch dam design specification.
[0013] In an optional implementation manner, if it is determined that there is a confined aquifer in the dam site area, determining whether the change in the water level of the reservoir water affects the pore water pressure of the confined aquifer includes:
[0014] If it is determined that there is a confined aquifer in the dam site area, then based on the connection between the confined aquifer and the reservoir water, it is determined whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer.
[0015] In an optional implementation manner, determining the foundation deformation of the arch dam caused by the confined aquifer based on the water level change of the reservoir water includes:
[0016] Determining the change in foundation seepage pressure of the arch dam caused by the confined aquifer based on the change in the water level of the reservoir water;
[0017] Based on the change in foundation seepage pressure, the foundation deformation of the arch dam caused by the confined aquifer is determined.
[0018] In an optional implementation manner, determining the foundation deformation of the arch dam caused by the confined aquifer based on the water level change of the reservoir water includes:
[0019] Based on the water level change of the reservoir water, the foundation deformation of the arch dam caused by the confined aquifer is determined by using a coupling analysis of seepage-mechanics.
[0020] In an optional implementation manner, the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification act on the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure, including:
[0021] The foundation deformation of the arch dam caused by the confined aquifer is applied to the arch dam structure corresponding to the basic shape of the arch dam with a variable load according to a preset action partial coefficient to determine a first stress and a first deformation of the arch dam structure;
[0022] Applying a hydraulic structure load corresponding to a preset arch dam design specification to an arch dam structure corresponding to a basic shape of the arch dam according to the preset arch dam design specification to determine a second stress and a second deformation of the arch dam structure;
[0023] The first stress and the second stress are superimposed to obtain the stress of the arch dam structure, and the first deformation and the second deformation are superimposed to obtain the deformation of the arch dam structure.
[0024] In an optional embodiment, the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam, and before determining the stress and deformation of the arch dam structure, the method further includes:
[0025] Based on the basic shape of the arch dam, a structural elastic finite element calculation model of the arch dam is established; wherein the structural elastic finite element calculation model of the arch dam is used to characterize the arch dam structure corresponding to the basic shape of the arch dam.
[0026] In an optional embodiment, the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam, and after determining the stress and deformation of the arch dam structure, the method further includes:
[0027] If it is determined that the stress and deformation of the arch dam structure do not meet the safety control index of the stress and deformation of the preset arch dam design specification, adjusting the basic shape of the arch dam based on the stress and deformation of the arch dam structure to obtain an adjusted arch dam shape;
[0028] The adjusted arch dam shape is used as the basic shape of the arch dam, and the step of establishing a structural elastic finite element calculation model of the arch dam based on the basic shape of the arch dam is continued until the stress and deformation of the arch dam structure meet the safety control indicators of stress and deformation of the preset arch dam design specifications.
[0029] In an optional implementation manner, if it is determined that the stress and deformation of the arch dam structure meet the safety control index of the stress and deformation of the preset arch dam design specification, then the basic shape of the arch dam is used as the shape of the arch dam, including:
[0030] If it is determined that there are multiple arch dam structures whose stress and deformation respectively correspond to the basic shapes of the arch dam meet the safety control index of stress and deformation of the preset arch dam design specification, then economic evaluation is performed on the arch dam structures respectively corresponding to the basic shapes of the multiple arch dams;
[0031] The basic shape of the arch dam with the best economic performance evaluation is determined from among the basic shapes of the multiple arch dams, and the basic shape of the arch dam with the best economic performance evaluation is used as the shape of the arch dam.
[0032] In a second aspect, the present disclosure provides a device for determining the shape of an arch dam, the device comprising:
[0033] The first determination module is used to determine whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer when determining that there is a confined aquifer in the dam site area; wherein the dam site area is used to represent the area where the arch dam is built, and the reservoir water is used to represent the upstream reservoir water formed by the arch dam water storage;
[0034] A second determination module is used to determine the foundation deformation of the arch dam caused by the confined aquifer based on the water level change of the reservoir water when determining that the water level change of the reservoir water affects the pore water pressure of the confined aquifer;
[0035] A third determination module is used to apply the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure;
[0036] The fourth determination module is used to determine that when the stress and deformation of the arch dam structure meet the safety control indicators of stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam.
[0037] In a third aspect, the present disclosure provides a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed on a terminal device, the terminal device implements the above method.
[0038] In a fourth aspect, the present disclosure provides a device for determining the shape of an arch dam, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above method when executing the computer program.
[0039] In a fifth aspect, the present disclosure provides a computer program product, wherein the computer program product comprises a computer program / instructions, and the computer program / instructions implement the above method when executed by a processor.
[0040] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has at least the following advantages:
[0041] The embodiment of the present disclosure provides a method for determining the shape of an arch dam. If it is determined that there is a confined aquifer in the dam site area, it is determined whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer, wherein the dam site area is used to characterize the area where the arch dam is built, and the reservoir water is used to characterize the upstream reservoir water formed by the arch dam water storage. If it is determined that the water level change of the reservoir water affects the pore water pressure of the confined aquifer, the foundation deformation of the arch dam caused by the confined aquifer is determined based on the water level change of the reservoir water. The foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure. If it is determined that the stress and deformation of the arch dam structure meet the safety control index of the stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam. It can be seen that when determining the shape of the arch dam, the embodiment of the present disclosure takes into account the influence of the foundation deformation of the arch dam caused by the confined aquifer on the arch dam structure, thereby improving the safety of the arch dam structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0042] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0044] Figure 1 A flow chart of a method for determining the shape of an arch dam provided in an embodiment of the present disclosure;
[0045] Figure 2 A flow chart of another method for determining the shape of an arch dam provided in an embodiment of the present disclosure;
[0046] Figure 3 A schematic diagram of the structure of a device for determining the shape of an arch dam provided in an embodiment of the present disclosure;
[0047] Figure 4 A schematic diagram of the structure of a device for determining the shape of an arch dam provided in an embodiment of the present disclosure. DETAILED DESCRIPTION
[0048] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.
[0049] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.
[0050] A large number of arch dam projects have been successfully built based on modern standard design methods. After these projects were put into operation, the measured deformation of the arch dam structure was different from the design to varying degrees. Among them, due to the hydrogeological conditions of the complex foundation of the arch dam, especially when there is a confined aquifer in the foundation of the arch dam, the foundation may produce active deformation, resulting in insufficient consideration of multiple constraints on the boundaries of the arch dam structure in the design and analysis, which brings difficulties to the later safe operation analysis and evaluation of the arch dam structure.
[0051] At present, in the arch dam design specifications, the probabilistic limit state method, the single safety factor method or the allowable stress method are usually used for arch dam structure design. During the design, it is necessary to consider various effects including deadweight, hydrostatic pressure, temperature change, uplift pressure, sediment pressure, wave pressure, dynamic water pressure, ice pressure and earthquake action.
[0052] However, the combination of actions under different design conditions usually does not include the influence of active deformation of the arch dam foundation caused by changes in hydrogeological conditions. The influence of this active deformation is often handled in a "post-management" mode, that is, it is analyzed and managed after it occurs during operation, resulting in safety risks in the actual operation of the arch dam structure. Therefore, how to improve the safety of the arch dam structure has become a technical problem that needs to be solved urgently.
[0053] In order to improve the safety of the arch dam structure, an embodiment of the present disclosure provides a method for determining the shape of an arch dam.
[0054] Specifically, if it is determined that there is a confined aquifer in the dam site area, it is determined whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer, wherein the dam site area is used to characterize the area where the arch dam is built, and the reservoir water is used to characterize the upstream reservoir water formed by the arch dam water storage. If it is determined that the water level change of the reservoir water affects the pore water pressure of the confined aquifer, then based on the water level change of the reservoir water, the foundation deformation of the arch dam caused by the confined aquifer is determined, and the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure. If it is determined that the stress and deformation of the arch dam structure meet the safety control index of the stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam. It can be seen that when determining the shape of the arch dam, the embodiment of the present disclosure takes into account the influence of the foundation deformation of the arch dam caused by the confined aquifer on the arch dam structure, thereby improving the safety of the arch dam structure.
[0055] Based on this, the embodiment of the present disclosure provides a method for determining the shape of an arch dam, referring to Figure 1 , is a flow chart of a method for determining the shape of an arch dam provided in an embodiment of the present disclosure, the method comprising:
[0056] S101: If it is determined that there is a confined aquifer in the dam site area, determine whether the change in reservoir water level affects the pore water pressure of the confined aquifer.
[0057] Among them, the dam site area is used to represent the area where the arch dam is built, and the reservoir water is used to represent the upstream reservoir water formed by the arch dam water storage.
[0058] In the embodiments of the present disclosure, a confined aquifer refers to an aquifer that is surrounded by impermeable layers such as clay layers or rock layers above and below.
[0059] In the disclosed embodiment, it is possible to determine whether there is a confined aquifer in the dam site area based on the geological survey data of the dam site area.
[0060] In an optional implementation, if it is determined that there is a confined aquifer in the dam site area, then based on the connectivity between the confined aquifer and the reservoir water, it is determined whether changes in the reservoir water level affect the pore water pressure of the confined aquifer.
[0061] Among them, the connectivity between the confined aquifer and the reservoir water means that the water in the reservoir water can be exchanged with the confined aquifer in a corresponding manner.
[0062] In the disclosed embodiment, if it is determined that there is a confined aquifer in the dam site area, the communication relationship between the confined aquifer and the reservoir water is analyzed. If there is a communication relationship between the confined aquifer and the reservoir water, it indicates that the water in the reservoir water can be exchanged with the confined aquifer in a corresponding manner, that is, the water level change of the reservoir water affects the pore water pressure of the confined aquifer. If there is no communication relationship between the confined aquifer and the reservoir water, it indicates that the water in the reservoir water cannot be exchanged with the confined aquifer in a corresponding manner, that is, the water level change of the reservoir water does not affect the pore water pressure of the confined aquifer.
[0063] S102: If it is determined that the change in the water level of the reservoir water affects the pore water pressure of the confined aquifer, the foundation deformation of the arch dam caused by the confined aquifer is determined based on the change in the water level of the reservoir water.
[0064] In the disclosed embodiment, the water level change of the reservoir water can be determined based on the water level of the reservoir water before the arch dam is built and the water level of the reservoir water after the arch dam is built, thereby determining the foundation deformation of the arch dam caused by the confined aquifer based on the water level change of the reservoir water.
[0065] In an optional embodiment, based on the change in reservoir water level, the change in foundation seepage pressure of the arch dam caused by the confined aquifer is determined, and based on the change in foundation seepage pressure, the foundation deformation of the arch dam caused by the confined aquifer is determined.
[0066] The seepage pressure change of the foundation of the arch dam caused by the confined aquifer includes the seepage pressure change corresponding to each grid unit in the foundation of the arch dam caused by the confined aquifer.
[0067] Accordingly, the foundation deformation of the arch dam caused by the confined aquifer includes the foundation deformation corresponding to each grid unit in the foundation of the arch dam caused by the confined aquifer.
[0068] Each grid unit in the foundation is obtained by gridding the foundation.
[0069] In the embodiment of the present disclosure, the change in the foundation seepage pressure of the arch dam caused by the confined aquifer can be determined by a numerical analysis method.
[0070] Exemplarily, a reservoir water level-foundation seepage pressure model can be established in advance to describe the relationship between the reservoir water level and the foundation seepage pressure distribution of the arch dam caused by the confined aquifer. Based on the reservoir water level-foundation seepage pressure model, the corresponding foundation seepage pressure distribution of the arch dam caused by the confined aquifer can be determined by inputting a specific reservoir water level.
[0071] The seepage pressure distribution of the arch dam foundation refers to the seepage pressure corresponding to each grid unit in the foundation of the arch dam.
[0072] Exemplarily, it is assumed that the water level change of the reservoir water is Δh=h1-h2, where Δh represents the water level change of the reservoir water, h1 represents the water level of the reservoir water before the arch dam is built, and h2 represents the water level of the reservoir water after the arch dam is built.
[0073] Specifically, h1 is input into the reservoir water level-foundation seepage pressure model to obtain the foundation seepage pressure distribution of the arch dam caused by the confined aquifer corresponding to h1, P1={a1, a2, a3…an}, wherein P1 represents the foundation seepage pressure distribution of the arch dam caused by the confined aquifer corresponding to h1, and a1, a2, a3…an represent the seepage pressures corresponding to each grid unit in the foundation of the arch dam caused by the confined aquifer corresponding to h1.
[0074] Input h2 into the reservoir water level-foundation seepage pressure model, and obtain the foundation seepage pressure distribution of the arch dam caused by the confined aquifer corresponding to h2, P2 = {b1, b2, b3…bn}, where P2 represents the foundation seepage pressure distribution of the arch dam caused by the confined aquifer corresponding to h2, and b1, b2, b3…bn represent the seepage pressure corresponding to each grid unit in the foundation of the arch dam caused by the confined aquifer corresponding to h2.
[0075] Correspondingly, the change in foundation seepage pressure of the arch dam caused by the confined aquifer corresponding to Δh is Δp={a1-b1, a2-b2, a3-b3…an-b3}, wherein Δp represents the change in foundation seepage pressure of the arch dam caused by the confined aquifer corresponding to Δh, and a1-b1, a2-b2, a3-b3…an-b3 represent the change in seepage pressure corresponding to each grid unit in the foundation of the arch dam caused by the confined aquifer corresponding to Δh.
[0076] Furthermore, the foundation deformation of the arch dam caused by the confined aquifer can be determined based on the change in foundation seepage pressure caused by the confined aquifer.
[0077] The foundation deformation of the arch dam caused by the confined aquifer includes the deformation corresponding to each grid unit in the foundation of the arch dam caused by the confined aquifer.
[0078] In the disclosed embodiment, the effect of Δp on the foundation deformation of the arch dam caused by the confined aquifer can be determined by numerical analysis using the effective stress principle of fractured rock mass.
[0079] In another optional implementation, based on the water level changes of the reservoir, a seepage-mechanics coupling analysis is performed to determine the foundation deformation of the arch dam caused by the confined aquifer.
[0080] The foundation deformation of the arch dam caused by the confined aquifer includes the deformation corresponding to each grid unit in the foundation of the arch dam caused by the confined aquifer.
[0081] For ease of understanding, let's continue with the above example and assume that the reservoir water level change Δh=h1-h2, where Δh represents the reservoir water level change, h1 represents the reservoir water level before the arch dam is built, and h2 represents the reservoir water level after the arch dam is built.
[0082] Specifically, based on h1, a coupling analysis is performed using seepage-mechanics to determine the three-dimensional coordinates of the nodes of each grid unit in the foundation of the arch dam caused by the confined aquifer corresponding to h1; based on h2, a coupling analysis is performed using seepage-mechanics to determine the three-dimensional coordinates of the nodes of each grid unit in the foundation of the arch dam caused by the confined aquifer corresponding to h2, and then the difference between the three-dimensional coordinates of the nodes of each grid unit in the foundation of the arch dam caused by the confined aquifer corresponding to h1 and the three-dimensional coordinates of the nodes of the foundation of the arch dam caused by the confined aquifer corresponding to h2 is taken as the deformation corresponding to each grid unit in the foundation of the arch dam caused by the confined aquifer.
[0083] S103: The foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure.
[0084] The basic shape of the arch dam may be the initial shape of the arch dam during the arch dam design stage.
[0085] In the embodiment of the present disclosure, the hydraulic structure load corresponding to the preset arch dam design specification refers to the action on the arch dam specified in the preset arch dam design specification and the combination of actions under different design conditions.
[0086] In the embodiments of the present disclosure, the actions on the arch dam and the combination of actions under different design conditions refer to the various types of actions and their combinations that the arch dam structure needs to withstand, which are determined during the arch dam design process according to preset arch dam design specifications (such as "Specifications for Design of Concrete Arch Dams" (NB / T 10870-2021)).
[0087] Specifically, under different arch dam design conditions, the effects on the arch dam and the combination of effects under different design conditions are clearly stipulated in the "Concrete Arch Dam Design Code".
[0088] In the disclosed embodiment, the arch dam design specification refers to a series of technical standards and parameters that have been determined and adopted before the arch dam design stage, which provide guiding technical requirements for engineers in designing arch dam structures. By way of example, the preset arch dam design specification is the "Concrete Arch Dam Design Specification" (NB / T 10870-2021).
[0089] In an optional embodiment, the foundation deformation of the arch dam caused by the confined aquifer is applied to the arch dam structure corresponding to the basic shape of the arch dam with a variable load according to a preset action partial coefficient to determine the first stress and the first deformation of the arch dam structure. The hydraulic structure load corresponding to the preset arch dam design specification is applied to the arch dam structure corresponding to the basic shape of the arch dam according to the preset arch dam design specification to determine the second stress and the second deformation of the arch dam structure. The first stress and the second stress are superimposed to obtain the stress of the arch dam structure. The first deformation and the second deformation are superimposed to obtain the deformation of the arch dam structure.
[0090] In the embodiment of the present disclosure, the preset action partial coefficient refers to a pre-set coefficient used to adjust and weight the influence of the foundation deformation of the arch dam caused by the pressurized aquifer on the arch dam structure in the arch dam structure design to ensure the safety and reliability of the structure. For example, the preset action partial coefficient can be taken as 1.0.
[0091] Exemplarily, it is assumed that the first stress is S1, the first deformation is U1, the second stress is S2, and the second deformation is U2.
[0092] In the disclosed embodiment, the deformation corresponding to each grid unit in the foundation of the arch dam caused by the confined aquifer is applied to the arch dam structure corresponding to the basic shape of the arch dam with a variable load according to a preset action partial coefficient, and the stress S1 and deformation U1 corresponding to each grid unit in the arch dam structure are determined.
[0093] Furthermore, the effects on the arch dam corresponding to the preset arch dam design specifications and the combination of effects under different design states (i.e., hydraulic structure loads) are applied to the corresponding grid units in the arch dam structure corresponding to the basic shape of the arch dam according to the different design conditions of the preset arch dam design specifications, and the stress S2 and deformation U2 corresponding to each grid unit in the arch dam structure are determined.
[0094] Among them, each grid unit in the arch dam structure is obtained by gridding the arch dam structure.
[0095] Furthermore, the stress S1 and the stress S2 corresponding to each grid unit in the arch dam structure are superimposed to obtain the stress corresponding to each grid unit in the arch dam structure, and the stress corresponding to each grid unit in the arch dam structure is used as the stress of the arch dam structure. The deformation U1 and the deformation U2 corresponding to each grid unit in the arch dam structure are superimposed to obtain the deformation corresponding to each grid unit in the arch dam structure, and the deformation corresponding to each grid unit in the arch dam structure is used as the deformation of the arch dam structure.
[0096] S104: If it is determined that the stress and deformation of the arch dam structure meet the safety control indicators of stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam.
[0097] In the embodiment of the present disclosure, after determining the stress and deformation of the arch dam structure, based on the safety control indicators of stress and deformation in the preset arch dam design specification, it is determined whether the stress and deformation of the arch dam structure meet the safety control indicators of stress and deformation in the preset arch dam design specification; if it is determined that the stress and deformation of the arch dam structure meet the safety control indicators of stress and deformation in the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam.
[0098] In the method for determining the shape of an arch dam provided by the embodiment of the present disclosure, if it is determined that there is a confined aquifer in the dam site area, it is determined whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer, wherein the dam site area is used to characterize the area where the arch dam is built, and the reservoir water is used to characterize the upstream reservoir water formed by the arch dam water storage. If it is determined that the water level change of the reservoir water affects the pore water pressure of the confined aquifer, then based on the water level change of the reservoir water, the foundation deformation of the arch dam caused by the confined aquifer is determined, and the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure. If it is determined that the stress and deformation of the arch dam structure meet the safety control index of the stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam. It can be seen that when determining the shape of the arch dam, the embodiment of the present disclosure takes into account the influence of the foundation deformation of the arch dam caused by the confined aquifer on the arch dam structure, thereby improving the safety of the arch dam structure.
[0099] On the basis of the above embodiment, if it is determined that the stress and deformation of the arch dam structure do not meet the safety control indicators of the stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is adjusted based on the stress and deformation of the arch dam structure to obtain the adjusted arch dam shape, and the adjusted arch dam shape is used as the basic shape of the arch dam, and the steps of determining the stress and deformation of the arch dam structure by subjecting the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification to the arch dam structure corresponding to the basic shape of the arch dam are continued until the stress and deformation of the arch dam structure meet the safety control indicators of the stress and deformation of the preset arch dam design specification.
[0100] In the embodiments of the present disclosure, if it is determined that the stress and deformation of the arch dam structure do not meet the safety control indicators of the stress and deformation of the preset arch dam design specifications, the basic shape of the arch dam can be adjusted based on the stress and deformation of the arch dam structure to obtain an adjusted arch dam shape, and the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specifications are continued to act on the arch dam structure corresponding to the adjusted arch dam shape to determine the stress and deformation of the arch dam structure corresponding to the adjusted arch dam shape. If it is determined that the stress and deformation of the arch dam structure corresponding to the adjusted arch dam shape meet the safety control indicators of the stress and deformation of the preset arch dam design specifications, the adjusted arch dam shape is used as the shape of the arch dam.
[0101] In the disclosed embodiment, if it is determined that the stress and deformation of the arch dam structure do not meet the safety control indicators of stress and deformation of the preset arch dam design specifications, it indicates that the safety of the arch dam structure is insufficient. Therefore, based on the stress and deformation of the arch dam structure, the basic shape of the arch dam can be adjusted so that the stress and deformation of the arch dam structure corresponding to the adjusted arch dam shape meet the safety control indicators of stress and deformation of the preset arch dam design specifications, thereby improving the safety of the arch dam structure.
[0102] Furthermore, in order to improve the economy of the arch dam structure, in an optional implementation, if it is determined that there are multiple arch dam basic shapes whose corresponding arch dam structures have stresses and deformations that meet the safety control indicators of stress and deformation of preset arch dam design specifications, then the arch dam structures corresponding to the basic shapes of the multiple arch dams are economically evaluated again, and the basic shape of the arch dam with the best economic evaluation is determined from the basic shapes of the multiple arch dams, and the basic shape of the arch dam with the best economic evaluation is used as the shape of the arch dam.
[0103] In the embodiment of the present disclosure, when it is determined that the stress and deformation of the arch dam structure do not meet the safety control indicators of stress and deformation of the preset arch dam design specification based on the stress and deformation of the arch dam structure, the basic shape of the arch dam is adjusted to obtain an adjusted arch dam shape, and the adjusted arch dam shape is used as the basic shape of the arch dam. At this time, there can be multiple basic shapes of the arch dam (i.e., the adjusted arch dam shape). If it is determined that there are multiple basic shapes of arch dams whose corresponding arch dam structures have stress and deformation that meet the safety control indicators of stress and deformation of the preset arch dam design specification, the basic shape of the arch dam with the best economic evaluation can be determined from the basic shapes of the multiple arch dams by performing economic evaluation on the arch dam structures corresponding to the basic shapes of the multiple arch dams, and the basic shape of the arch dam with the best economic evaluation is used as the shape of the arch dam, thereby improving the economy of the arch dam structure.
[0104] In some embodiments of the present disclosure, the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam. Before determining the stress and deformation of the arch dam structure, in an optional implementation, a structural elastic finite element calculation model of the arch dam can be established based on the basic shape of the arch dam.
[0105] Among them, the structural elastic finite element calculation model of the arch dam is used to characterize the arch dam structure corresponding to the basic shape of the arch dam.
[0106] Specifically, the structural elastic finite element calculation model of the arch dam refers to a model created by using the finite element analysis method, which is used to simulate and analyze the stress and deformation of the arch dam structure under different design conditions and action combinations.
[0107] Furthermore, the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam. After the stress and deformation of the arch dam structure are determined, if it is determined that the stress and deformation of the arch dam structure do not meet the safety control indicators of the stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is adjusted based on the stress and deformation of the arch dam structure to obtain an adjusted arch dam shape. The adjusted arch dam shape is used as the basic shape of the arch dam, and the step of establishing a structural elastic finite element calculation model of the arch dam based on the basic shape of the arch dam is continued until the stress and deformation of the arch dam structure meet the safety control indicators of the stress and deformation of the preset arch dam design specification.
[0108] In the embodiment of the present disclosure, if it is determined that the stress and deformation of the arch dam structure do not meet the safety control indicators of the stress and deformation of the preset arch dam design specification, the basic shape of the arch dam can be adjusted based on the stress and deformation of the arch dam structure to obtain the adjusted arch dam shape, and then a structural elastic finite element calculation model of the arch dam is established based on the adjusted arch dam shape, wherein the structural elastic finite element calculation model of the arch dam is used to characterize the arch dam structure corresponding to the adjusted arch dam shape, and then the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the adjusted arch dam shape to determine the stress and deformation of the arch dam structure corresponding to the adjusted arch dam shape; if it is determined that the stress and deformation of the arch dam structure corresponding to the adjusted arch dam shape meet the safety control indicators of the stress and deformation of the preset arch dam design specification, the adjusted arch dam shape is used as the shape of the arch dam.
[0109] In the disclosed embodiment, if it is determined that the stress and deformation of the arch dam structure do not meet the safety control indicators of stress and deformation of the preset arch dam design specifications, it indicates that the safety of the arch dam structure is insufficient. Therefore, based on the stress and deformation of the arch dam structure, the basic shape of the arch dam can be adjusted so that the stress and deformation of the arch dam structure corresponding to the adjusted arch dam shape meet the safety control indicators of stress and deformation of the preset arch dam design specifications, thereby improving the safety of the arch dam structure.
[0110] Based on the above embodiments, the present disclosure also provides a method for determining the shape of an arch dam. Figure 2 , is a flow chart of another method for determining the shape of an arch dam provided in an embodiment of the present disclosure, the method comprising:
[0111] First, based on the engineering geological report, determine whether there is a confined aquifer in the dam site area. If there is no confined aquifer in the dam site area, the hydraulic structure load corresponding to the preset arch dam design specification will be applied to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure. Determine whether the stress and deformation of the arch dam structure meet the safety control indicators of the stress and deformation of the preset arch dam design specification. If it is determined whether the stress and deformation of the arch dam structure meet the safety control indicators of the stress and deformation of the preset arch dam design specification, the basic shape of the arch dam will be directly used as the shape of the arch dam.
[0112] If there is a confined aquifer in the dam site area, determine whether the change in the reservoir water level affects the pore water pressure of the confined aquifer. If it is determined that the change in the reservoir water level affects the pore water pressure of the confined aquifer, then based on the change in the reservoir water level, determine the change in the foundation seepage pressure of the arch dam caused by the confined aquifer. Based on the change in the foundation seepage pressure, determine the foundation deformation of the arch dam caused by the confined aquifer (i.e., the foundation deformation of the arch dam caused by the change in the seepage field before and after water storage).
[0113] Based on the basic shape of the arch dam, a structural elastic finite element calculation model of the arch dam is established, wherein the structural elastic finite element calculation model of the arch dam is used to characterize the arch dam structure corresponding to the basic shape of the arch dam, and the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure. If it is determined that the stress and deformation of the arch dam structure do not meet the safety control indicators of the stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is adjusted based on the stress and deformation of the arch dam structure to obtain the adjusted arch dam shape.
[0114] The adjusted arch dam shape is used as the basic shape of the arch dam, and the steps of establishing the structural elastic finite element calculation model of the arch dam based on the basic shape of the arch dam are continued until the stress and deformation of the arch dam structure meet the safety control indicators of the stress and deformation of the preset arch dam design specification. If it is determined that there are multiple arch dam basic shapes whose corresponding arch dam structures have stress and deformation that meet the safety control indicators of the stress and deformation of the preset arch dam design specification, the arch dam structures corresponding to the basic shapes of the multiple arch dams are economically evaluated, and the basic shape of the arch dam with the best economic evaluation is determined from the basic shapes of the multiple arch dams, and the basic shape of the arch dam with the best economic evaluation is used as the shape of the arch dam.
[0115] During the arch dam structure design stage, the disclosed embodiment first studies the possible active deformation of the arch dam foundation, and quantitatively calculates its influence on the arch dam structure through numerical analysis, thereby adjusting the shape design of the arch dam, further improving the consistency between the arch dam structure design working state and the actual operating state, and avoiding the risks brought by active deformation of the foundation in advance.
[0116] It can be seen that the embodiments of the present disclosure can improve the consistency between the designed working state and the actual operating state of the arch dam structure, reduce the impact of the difference between the design and the actual on the safety evaluation of the arch dam operation, and can also improve the actual safety margin of the arch dam structure after it is built and put into operation, and can predict risks in advance, thereby ensuring the safe operation of the arch dam.
[0117] In addition, the economic efficiency of the arch dam structure can be further improved by conducting an economic evaluation of the basic shape of the arch dam.
[0118] Based on the above method embodiment, the present disclosure also provides a device for determining the shape of an arch dam, referring to Figure 3 , is a schematic diagram of the structure of a device for determining the shape of an arch dam provided in an embodiment of the present disclosure, the device comprising:
[0119] The first determination module 301 is used to determine whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer when determining that there is a confined aquifer in the dam site area; wherein the dam site area is used to represent the area where the arch dam is built, and the reservoir water is used to represent the upstream reservoir water formed by the arch dam water storage;
[0120] The second determination module 302 is used to determine the foundation deformation of the arch dam caused by the confined aquifer based on the water level change of the reservoir water when determining that the water level change of the reservoir water affects the pore water pressure of the confined aquifer;
[0121] The third determination module 303 is used to determine the stress and deformation of the arch dam structure by applying the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification to the arch dam structure corresponding to the basic shape of the arch dam;
[0122] The fourth determination module 304 is used to determine that when the stress and deformation of the arch dam structure meet the safety control index of stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam.
[0123] In an optional implementation, the device further includes:
[0124] A fifth determination module is used to adjust the basic shape of the arch dam based on the stress and deformation of the arch dam structure to obtain an adjusted arch dam shape when it is determined that the stress and deformation of the arch dam structure do not meet the safety control index of the stress and deformation of the preset arch dam design specification;
[0125] The sixth determination module is used to use the adjusted arch dam shape as the basic shape of the arch dam, and continue to execute the steps of applying the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification to the arch dam structure corresponding to the basic shape of the arch dam, and determining the stress and deformation of the arch dam structure, until the stress and deformation of the arch dam structure meet the safety control indicators of the stress and deformation of the preset arch dam design specification.
[0126] In an optional implementation manner, the first determining module 301 is specifically configured to:
[0127] If it is determined that there is a confined aquifer in the dam site area, then based on the connection between the confined aquifer and the reservoir water, it is determined whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer.
[0128] In an optional implementation manner, the second determination module 302 includes a first determination submodule, and the first determination submodule is used to determine the foundation deformation of the arch dam caused by the confined aquifer based on the water level change of the reservoir water;
[0129] The first determining submodule includes:
[0130] A second determination submodule is used to determine the change in the foundation seepage pressure of the arch dam caused by the confined aquifer based on the change in the water level of the reservoir water;
[0131] The third determination submodule is used to determine the foundation deformation of the arch dam caused by the confined aquifer based on the change in the foundation seepage pressure.
[0132] In an optional implementation manner, the first determining submodule is specifically configured to:
[0133] Based on the water level change of the reservoir water, the foundation deformation of the arch dam caused by the confined aquifer is determined by using a coupling analysis of seepage-mechanics.
[0134] In an optional implementation manner, the third determining module 303 includes:
[0135] A fourth determination submodule is used to determine a first stress and a first deformation of the arch dam structure by applying a variable load to the arch dam structure corresponding to the basic shape of the arch dam according to a preset action partial coefficient based on the foundation deformation of the arch dam caused by the confined aquifer;
[0136] A fifth determination submodule is used to apply a hydraulic structure load corresponding to a preset arch dam design specification to an arch dam structure corresponding to a basic shape of the arch dam according to the preset arch dam design specification to determine a second stress and a second deformation of the arch dam structure;
[0137] The sixth determination submodule is used to superimpose the first stress and the second stress to obtain the stress of the arch dam structure, and to superimpose the first deformation and the second deformation to obtain the deformation of the arch dam structure.
[0138] In an optional implementation, the device further includes:
[0139] The model building module is used to build a structural elastic finite element calculation model of the arch dam based on the basic shape of the arch dam; wherein the structural elastic finite element calculation model of the arch dam is used to characterize the arch dam structure corresponding to the basic shape of the arch dam.
[0140] In an optional implementation, the device further includes:
[0141] A seventh determination module is used to adjust the basic shape of the arch dam based on the stress and deformation of the arch dam structure to obtain an adjusted arch dam shape when it is determined that the stress and deformation of the arch dam structure do not meet the safety control index of the stress and deformation of the preset arch dam design specification;
[0142] The eighth determination module is used to use the adjusted arch dam shape as the basic shape of the arch dam, and continue to execute the step of establishing the structural elastic finite element calculation model of the arch dam based on the basic shape of the arch dam until the stress and deformation of the arch dam structure meet the safety control indicators of stress and deformation of the preset arch dam design specifications.
[0143] In an optional implementation manner, the fourth determining module 304 includes:
[0144] A seventh determination submodule is used to determine that when the stress and deformation of the arch dam structures corresponding to the basic shapes of the multiple arch dams meet the safety control index of the stress and deformation of the preset arch dam design specification, perform economic evaluation on the arch dam structures corresponding to the basic shapes of the multiple arch dams;
[0145] The eighth determination submodule is used to determine the basic shape of the arch dam with the best economic evaluation from the basic shapes of the multiple arch dams, and use the basic shape of the arch dam with the best economic evaluation as the shape of the arch dam.
[0146] In the device for determining the shape of an arch dam provided by the embodiment of the present disclosure, if it is determined that there is a confined aquifer in the dam site area, it is determined whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer, wherein the dam site area is used to characterize the area where the arch dam is built, and the reservoir water is used to characterize the upstream reservoir water formed by the arch dam water storage. If it is determined that the water level change of the reservoir water affects the pore water pressure of the confined aquifer, then based on the water level change of the reservoir water, the foundation deformation of the arch dam caused by the confined aquifer is determined, and the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure. If it is determined that the stress and deformation of the arch dam structure meet the safety control index of the stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam. It can be seen that when determining the shape of the arch dam, the embodiment of the present disclosure takes into account the influence of the foundation deformation of the arch dam caused by the confined aquifer on the arch dam structure, thereby improving the safety of the arch dam structure.
[0147] In addition to the above-mentioned method and apparatus, the embodiment of the present disclosure further provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed on a terminal device, the terminal device implements the method for determining the arch dam shape described in the embodiment of the present disclosure.
[0148] The embodiment of the present disclosure further provides a computer program product, which includes a computer program / instructions. When the computer program / instructions are executed by a processor, the method for determining the arch dam shape described in the embodiment of the present disclosure is implemented.
[0149] In addition, the embodiment of the present disclosure also provides a device for determining the shape of an arch dam, see Figure 4 As shown, this may include:
[0150] Processor 401, memory 402, input device 403 and output device 404. The number of processors 401 in the arch dam shape determination device can be one or more. Figure 4In some embodiments of the present disclosure, the processor 401, the memory 402, the input device 403 and the output device 404 may be connected via a bus or other means, wherein: Figure 4 The example of connecting through bus is taken in the following.
[0151] The memory 402 can be used to store software programs and modules. The processor 401 executes various functional applications and data processing of the arch dam shape determination device by running the software programs and modules stored in the memory 402. The memory 402 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required for a function, etc. In addition, the memory 402 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. The input device 403 can be used to receive input digital or character information, and generate signal input related to user settings and function control of the arch dam shape determination device.
[0152] Specifically in this embodiment, the processor 401 will load the executable files corresponding to the processes of one or more applications into the memory 402 according to the following instructions, and the processor 401 will run the applications stored in the memory 402, thereby realizing the various functions of the above-mentioned arch dam shape determination device.
[0153] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0154] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A method for determining the shape of an arch dam, characterized in that: The method comprises: If it is determined that there is a confined aquifer in the dam site area, determine whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer; wherein the dam site area is used to represent the area where the arch dam is built, and the reservoir water is used to represent the upstream reservoir water formed by the water storage of the arch dam; If it is determined that the change in the water level of the reservoir water affects the pore water pressure of the confined aquifer, then based on the change in the water level of the reservoir water, the foundation deformation of the arch dam caused by the confined aquifer is determined, and the change in the water level of the reservoir water affecting the pore water pressure of the confined aquifer means that the water in the reservoir water can be exchanged with the confined aquifer in a corresponding manner; Applying the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure; If it is determined that the stress and deformation of the arch dam structure meet the safety control indicators of stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam.
2. The method according to claim 1, characterized in that: After the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam and the stress and deformation of the arch dam structure are determined, the method further includes: If it is determined that the stress and deformation of the arch dam structure do not meet the safety control index of the stress and deformation of the preset arch dam design specification, adjusting the basic shape of the arch dam based on the stress and deformation of the arch dam structure to obtain an adjusted arch dam shape; The adjusted arch dam shape is used as the basic shape of the arch dam, and the steps of determining the stress and deformation of the arch dam structure by subjecting the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification to the arch dam structure corresponding to the basic shape of the arch dam are continued, until the stress and deformation of the arch dam structure meet the safety control indicators of the stress and deformation of the preset arch dam design specification.
3. The method according to claim 1, characterized in that If it is determined that there is a confined aquifer in the dam site area, determining whether the change in the water level of the reservoir water affects the pore water pressure of the confined aquifer includes: If it is determined that there is a confined aquifer in the dam site area, then based on the connection between the confined aquifer and the reservoir water, it is determined whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer.
4. The method according to claim 1, characterized in that The determining of the foundation deformation of the arch dam caused by the confined aquifer based on the water level change of the reservoir water comprises: Determining the change in foundation seepage pressure of the arch dam caused by the confined aquifer based on the change in the water level of the reservoir water; Based on the change in foundation seepage pressure, the foundation deformation of the arch dam caused by the confined aquifer is determined.
5. The method according to claim 1, characterized in that The determining of the foundation deformation of the arch dam caused by the confined aquifer based on the water level change of the reservoir water comprises: Based on the water level change of the reservoir water, the foundation deformation of the arch dam caused by the confined aquifer is determined by using a coupling analysis of seepage-mechanics.
6. The method according to claim 1, characterized in that The method of applying the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure includes: The foundation deformation of the arch dam caused by the confined aquifer is applied to the arch dam structure corresponding to the basic shape of the arch dam with a variable load according to a preset action partial coefficient to determine a first stress and a first deformation of the arch dam structure; Applying a hydraulic structure load corresponding to a preset arch dam design specification to an arch dam structure corresponding to a basic shape of the arch dam according to the preset arch dam design specification to determine a second stress and a second deformation of the arch dam structure; The first stress and the second stress are superimposed to obtain the stress of the arch dam structure, and the first deformation and the second deformation are superimposed to obtain the deformation of the arch dam structure.
7. The method according to claim 1, characterized in that Before determining the stress and deformation of the arch dam structure by applying the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification to the arch dam structure corresponding to the basic shape of the arch dam, the method further comprises: Based on the basic shape of the arch dam, a structural elastic finite element calculation model of the arch dam is established; wherein the structural elastic finite element calculation model of the arch dam is used to characterize the arch dam structure corresponding to the basic shape of the arch dam.
8. The method according to claim 7, characterized in that After the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification are applied to the arch dam structure corresponding to the basic shape of the arch dam and the stress and deformation of the arch dam structure are determined, the method further includes: If it is determined that the stress and deformation of the arch dam structure do not meet the safety control index of the stress and deformation of the preset arch dam design specification, adjusting the basic shape of the arch dam based on the stress and deformation of the arch dam structure to obtain an adjusted arch dam shape; The adjusted arch dam shape is used as the basic shape of the arch dam, and the step of establishing a structural elastic finite element calculation model of the arch dam based on the basic shape of the arch dam is continued until the stress and deformation of the arch dam structure meet the safety control indicators of stress and deformation of the preset arch dam design specifications.
9. The method according to claim 2, characterized in that: If it is determined that the stress and deformation of the arch dam structure meet the safety control index of the stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam, including: If it is determined that there are multiple arch dam structures whose stress and deformation respectively correspond to the basic shapes of the arch dam meet the safety control index of stress and deformation of the preset arch dam design specification, then economic evaluation is performed on the arch dam structures respectively corresponding to the basic shapes of the multiple arch dams; The basic shape of the arch dam with the best economic performance evaluation is determined from among the basic shapes of the multiple arch dams, and the basic shape of the arch dam with the best economic performance evaluation is used as the shape of the arch dam.
10. A device for determining the shape of an arch dam, characterized in that: The device comprises: The first determination module is used to determine whether the water level change of the reservoir water affects the pore water pressure of the confined aquifer when determining that there is a confined aquifer in the dam site area; wherein the dam site area is used to represent the area where the arch dam is built, and the reservoir water is used to represent the upstream reservoir water formed by the arch dam water storage; The second determination module is used to determine the foundation deformation of the arch dam caused by the confined aquifer based on the water level change of the reservoir water when determining that the water level change of the reservoir water affects the pore water pressure of the confined aquifer, and the water level change of the reservoir water affects the pore water pressure of the confined aquifer means that the water in the reservoir water can be exchanged with the confined aquifer in a corresponding manner; A third determination module is used to apply the foundation deformation of the arch dam caused by the confined aquifer and the hydraulic structure load corresponding to the preset arch dam design specification to the arch dam structure corresponding to the basic shape of the arch dam to determine the stress and deformation of the arch dam structure; The fourth determination module is used to determine that when the stress and deformation of the arch dam structure meet the safety control indicators of stress and deformation of the preset arch dam design specification, the basic shape of the arch dam is used as the shape of the arch dam.
11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed on a terminal device, the terminal device implements the method according to any one of claims 1 to 9.
12. A device for determining the shape of an arch dam, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method according to any one of claims 1 to 9 is implemented.
Citation Information
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