Method, device and storage medium for determining dam site-related design response spectrum

Abstract

The present application provides a method, device and storage medium for determining a dam site-related design response spectrum, and relates to the field of seismic input technology. The method includes: obtaining structural characteristic data of a high dam project to be created, determining the basic natural vibration period of the high dam project based on the structural characteristic data, and performing step-by-step interpolation on the response spectrum database of the high dam project based on the magnitude and distance of the set earthquake corresponding to the basic natural vibration period, and based on the magnitude and distance of the set earthquake corresponding to the zero period of the high dam project, respectively, to obtain the dam site-related design response spectrum corresponding to the basic natural vibration period and the zero period of the high dam project. The method of the present application simultaneously considers the set earthquakes of two different frequency bands, the basic natural vibration period and the zero period, so that the obtained dam site-related design response spectrum is closely related to the structural characteristics of the high dam project, thereby improving the accuracy of the dam site-related design response spectrum, and further meeting the seismic design requirements of important high dam projects.

Description

Technical Field

[0001] The present application relates to the field of seismic input technology, and in particular to a method, device, and storage medium for determining a dam site-related design response spectrum. Background Art

[0002] Important high dam projects are crucial to people's livelihoods, playing an irreplaceable, fundamental role in strengthening flood and drought prevention, optimizing water resource allocation, and improving the aquatic ecosystem. The construction of these important high dams presents the unavoidable challenge of seismic safety, making it crucial to ensure the seismic safety of these projects. Currently, in all existing seismic design codes, the site-dependent design response spectrum is one of the most critical seismic motion parameters used in seismic calculations.

[0003] In related technologies, the magnitude and distance of a given earthquake are usually determined based on the peak acceleration (i.e., the zero-period seismic spectrum acceleration value) determined by seismic hazard probability analysis. The site-specific design response spectrum of the given earthquake is then determined based on the Next Generation of Ground-Motion Attenuation Models (NGA).

[0004] However, the inventors have discovered through research that the dam site-related design response spectrum obtained using the above method cannot meet the seismic design requirements of important high dam projects. Summary of the Invention

[0005] The present application provides a method, device and storage medium for determining a dam site-related design response spectrum, which is used to solve the problem that the dam site-related design response spectrum obtained using relevant technologies cannot meet the seismic design requirements of important high dam projects.

[0006] In a first aspect, the present application provides a method for determining a dam site-related design response spectrum, comprising:

[0007] Obtain the structural characteristic data of the high dam project to be created;

[0008] Determine the basic natural vibration period of the high dam project based on structural characteristic data;

[0009] For a given earthquake corresponding to the basic natural vibration period, the response spectrum database of the high dam project is interpolated step by step based on the magnitude and distance of the given earthquake to obtain the dam site-related design response spectrum corresponding to the basic natural vibration period of the high dam project.

[0010] For the set earthquake corresponding to the zero period of the high dam project, the response spectrum database of the high dam project is interpolated step by step based on the magnitude and distance of the set earthquake to obtain the dam site-related design response spectrum of the high dam project corresponding to the zero period.

[0011] In one possible implementation, a response spectrum database for a high dam project is created by: obtaining strong vibration records of the bedrock; grading the strong vibration records of the bedrock according to magnitude and distance to obtain grading results; determining an average response spectrum corresponding to each grade of the grading results; and constructing a response spectrum database for the high dam project based on the average response spectrum corresponding to each grade of the grading results.

[0012] In one possible embodiment, the bedrock strong motion record includes the average shear wave velocity V within a depth of 30 m below the surface. s30 Strong earthquakes with a speed greater than or equal to 500 m / s, a magnitude (moment magnitude) greater than or equal to 6.0, and a distance (epicenter distance) less than or equal to 45 km.

[0013] In one possible implementation, the response spectrum database of the high dam project is interpolated in steps based on the magnitude and distance of a set earthquake, including: interpolating the response spectrum database of the high dam project based on the magnitude of the set earthquake to obtain a first interpolation result; interpolating the first interpolation result based on the distance of the set earthquake; or interpolating the response spectrum database of the high dam project based on the distance of the set earthquake to obtain a second interpolation result; and interpolating the second interpolation result based on the magnitude of the set earthquake.

[0014] In one possible embodiment, the set earthquake is determined in the following manner: under a given seismic fortification probability level, based on the site seismic safety evaluation, the seismic motion spectrum acceleration value corresponding to the basic natural vibration period is determined; the potential earthquake source that contributes the greatest probability of exceeding the seismic motion spectrum acceleration value corresponding to the basic natural vibration period is selected as the potential source; based on the principle of maximum probability of occurrence, the magnitude of the set earthquake is determined from the magnitudes of the potential sources that can produce seismic motion spectrum acceleration values ​​greater than the basic natural vibration period at the dam site; based on the magnitude and site seismic safety evaluation, as well as the distribution of active faults corresponding to the potential source, the distance of the set earthquake is determined.

[0015] In a possible implementation, the seismic motion spectrum acceleration value includes: the seismic motion spectrum acceleration value before dam site uncertainty correction, and / or the seismic motion spectrum acceleration value after dam site uncertainty correction.

[0016] In a second aspect, the present application provides a device for determining a dam site-related design response spectrum, comprising:

[0017] An acquisition module is used to obtain structural characteristic data of the high dam project to be created;

[0018] A determination module is used to determine the basic natural vibration period of the high dam project based on structural characteristic data;

[0019] The first processing module is used to perform step-by-step interpolation on the high dam project response spectrum database based on the magnitude and distance of the set earthquake corresponding to the basic natural vibration period, and obtain the dam site-related design response spectrum of the high dam project corresponding to the basic natural vibration period;

[0020] The second processing module is used to perform step-by-step interpolation on the response spectrum database of the high dam project based on the magnitude and distance of the set earthquake corresponding to the zero period of the high dam project, and obtain the dam site-related design response spectrum of the high dam project corresponding to the zero period.

[0021] In a third aspect, the present application provides an electronic device, comprising: a processor, and a memory communicatively connected to the processor;

[0022] Memory for storing computer-executable instructions;

[0023] A processor is configured to execute computer-executable instructions stored in a memory to implement the method described in any one of the first aspects.

[0024] In a fourth aspect, the present application provides a computer-readable storage medium, which stores computer-executable instructions. When the computer-executable instructions are executed, they are used to implement any of the methods described in the first aspect.

[0025] In a fifth aspect, the present application provides a computer program product, comprising a computer program, which implements the method described in any one of the first aspects when executed.

[0026] The present application provides a method, device and storage medium for determining a dam site-related design response spectrum. The method obtains structural characteristic data of a high dam project to be created, and determines the basic natural vibration period of the high dam project based on the structural characteristic data. For a set earthquake corresponding to the basic natural vibration period, the response spectrum database of the high dam project is interpolated step by step based on the magnitude and distance of the set earthquake to obtain the dam site-related design response spectrum of the high dam project corresponding to the basic natural vibration period. Furthermore, for a set earthquake corresponding to the zero period of the high dam project, the response spectrum database of the high dam project is interpolated step by step based on the magnitude and distance of the set earthquake to obtain the dam site-related design response spectrum of the high dam project corresponding to the zero period. In this process, the basic natural vibration period of the high dam project is determined according to the structural characteristic data of the high dam project, and the two different frequency bands of the basic natural vibration period and the zero period are taken into consideration. Based on the magnitude and distance of the set earthquake corresponding to the basic natural vibration period, and the magnitude and distance of the set earthquake corresponding to the zero period, the dam site-related design response spectrum of the basic natural vibration period and the dam site-related design response spectrum of the zero period are obtained. The obtained dam site-related design response spectrum is closely related to the site conditions and structural characteristics of the high dam project, thereby improving the accuracy of the dam site-related design response spectrum and meeting the seismic design requirements of important high dam projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0028] Figure 1 A schematic diagram of an application scenario of a method for determining a dam site-related design response spectrum provided in an exemplary embodiment of the present application;

[0029] Figure 2 A schematic flow chart of a method for determining a dam site-related design response spectrum provided in an exemplary embodiment of the present application;

[0030] Figure 3 A schematic diagram of bedrock strong earthquake records classified by magnitude and distance provided for an exemplary embodiment of the present application;

[0031] Figure 4 A schematic diagram of a family of horizontal average response spectrum curves classified by magnitude at different distances provided by an exemplary embodiment of the present application;

[0032] Figure 5 A schematic diagram of a family of horizontal average response spectrum curves of different magnitudes divided by distance provided by an exemplary embodiment of the present application;

[0033] Figure 6 A schematic diagram of a family of vertical average response spectrum curves classified by magnitude at different distances provided by an exemplary embodiment of the present application;

[0034] Figure 7 A schematic diagram of a family of vertical average response spectrum curves for different earthquake magnitudes classified by distance provided by an exemplary embodiment of the present application;

[0035] Figure 8 A schematic diagram of a response spectrum obtained by interpolating a magnitude of 6.91 from a 10 km family of curves provided in an exemplary embodiment of the present application;

[0036] Figure 9 A schematic diagram of a response spectrum obtained by interpolating a magnitude of 6.91 from a 20 km family of curves provided in an exemplary embodiment of the present application;

[0037] Figure 10 A schematic diagram of a set earthquake response spectrum obtained by interpolating from 10km and 20k to obtain a magnitude of 6.91 and a distance of 11.3km provided in an exemplary embodiment of the present application;

[0038] Figure 11 A schematic structural diagram of a device for determining a dam site-related design response spectrum provided by an exemplary embodiment of the present application;

[0039] Figure 12A schematic structural diagram of an electronic device provided as an exemplary embodiment of the present application.

[0040] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0041] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0042] The terms "first", "second" etc. in the specification and claims of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable in appropriate circumstances, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, system, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, products or equipment.

[0043] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0044] Since the relevant technology determines the magnitude and distance of the set earthquake by the zero-period seismic spectrum acceleration value, only the set earthquake corresponding to the zero period is considered, and the set earthquakes corresponding to other different frequency bands are not considered, and the site conditions and structural characteristics of the high dam project are not considered. However, when the high dam project is located on an ultra-deep cover layer, the basic natural vibration period of the high dam-cover layer system can reach 3s to 4s. Considering that strong seismic motion passes through an ultra-deep cover layer, its low-frequency components will be amplified. If its frequency component is close to the frequency band of the basic natural vibration period of the high dam project, resonance is likely to occur, which will cause serious damage to the high dam project. Therefore, only the magnitude of the set earthquake corresponding to the zero period is considered. and distance will lead to low accuracy of the obtained dam site-related design response spectrum; in addition, the relevant technology determines the peak acceleration by probability analysis of earthquake hazard. The probability analysis method adopted is based on the point source earthquake mechanism, while the response spectrum attenuation relationship in NGA introduces the "fault plane distance" to characterize the fault plane characteristics. The two are not coordinated and clear in the physical concept of the earthquake source. Moreover, due to the significant differences in the attenuation relationships in different NGAs, if the uncertain site-related response spectrum attenuation relationship is introduced, it will further affect the accuracy of the site-related design response spectrum, and thus the obtained dam site-related design response spectrum will be unable to meet the seismic design requirements of important high dam projects.

[0045] In order to solve the above problems, an embodiment of the present application provides a solution for determining a dam site-related design response spectrum, which determines the basic natural vibration period of the high dam project through the site conditions and structural characteristics of the high dam project, and takes into account the set earthquake corresponding to the basic natural vibration period and the set earthquake corresponding to the zero period. Based on the magnitude and distance of the set earthquake, the response spectrum database of the high dam project is interpolated step by step to obtain the dam site-related design response spectrum of the high dam project corresponding to the basic natural vibration period and the zero period respectively. The obtained dam site-related design response spectrum is closely related to the site conditions and structural characteristics of the high dam project, and there is no need to introduce an uncertain site-related response spectrum attenuation relationship, thereby improving the accuracy of the dam site-related design response spectrum, and thus meeting the seismic design requirements of important high dam projects.

[0046] Figure 1 This is a schematic diagram of an application scenario of the method for determining the dam site-related design response spectrum provided by the exemplary embodiment of this application. Figure 1 As shown, this application scenario includes a client 11 and a server 12, where the number of clients 11 can be at least one. In actual application, upon detecting the structural characteristic data of the high dam project to be created submitted by the user through client 11, server 12 executes the method for determining the dam site-related design response spectrum provided in this application to obtain the dam site-related design response spectrum.

[0047] It should be noted that the server 12 can also be replaced by a server cluster or other computing devices with a certain computing power. The client 11 can be a computer, a mobile phone, a notebook or a personal digital assistant (PDA).

[0048] The following combination Figure 1 For application scenarios, refer to Figure 2 To describe the method for determining the design response spectrum of the dam site according to the exemplary embodiment of the present application. It should be noted that the above application scenario is only shown to facilitate understanding of the spirit and principles of the present application, and the implementation of the present application is not affected by Figure 1 Limitations of the application scenario shown.

[0049] Figure 2 A flow chart of a method for determining a dam site-related design response spectrum provided in an exemplary embodiment of this application. Figure 2 As shown, the method for determining the dam site-related design response spectrum in the embodiment of the present application includes the following steps:

[0050] S201. Obtain structural characteristic data of the high dam project to be created.

[0051] For example, Figure 1 As shown, the user sends the structural characteristic data of the high dam project to be created in the form of instructions via client 11 to server 12. Server 12 receives the instructions sent by client 11 and parses them to obtain the structural characteristic data of the high dam project to be created. The structural characteristic data of the high dam project includes dam height, dam crest length, dam volume, dam foundation width, construction method, anti-seepage measures, dam top settings, and monitoring system settings.

[0052] S202. Determine the basic natural vibration period of the high dam project based on the structural characteristic data.

[0053] Among them, the basic natural vibration period refers to the reciprocating time required for the structural system to complete a free vibration according to a certain vibration mode.

[0054] For example, a high dam project model is constructed based on the structural characteristic data, and a preset calculation method is used to determine the basic natural vibration period of the high dam project model. Optionally, the preset calculation method includes: energy method, equivalent mass method (i.e., converted mass method), and vertex displacement method.

[0055] S203. For a set earthquake corresponding to the basic natural vibration period, based on the magnitude and distance of the set earthquake, a response spectrum database of the high dam project is interpolated step by step to obtain a dam site-related design response spectrum of the high dam project corresponding to the basic natural vibration period.

[0056] In this step, the set earthquake corresponding to the basic natural vibration period is determined in the following way: under a given seismic fortification probability level, based on the site seismic safety evaluation, the seismic motion spectrum acceleration value corresponding to the basic natural vibration period is determined; the potential earthquake source that contributes the most to the exceedance probability of the seismic motion spectrum acceleration value corresponding to the basic natural vibration period is selected as the potential source; based on the principle of maximum probability of occurrence, the magnitude of the set earthquake is determined from the potential sources that can produce seismic motion spectrum acceleration values ​​greater than the basic natural vibration period at the dam site; based on the magnitude and site seismic safety evaluation, as well as the distribution of active faults corresponding to the potential source, the distance of the set earthquake is determined.

[0057] For example, according to relevant documents, the seismic fortification probability level for major hydropower projects is a 2% exceedance probability within 100 years for a 5,000-year event. Correspondingly, potential sources contributing to such low-probability events typically involve only a few nearby sites and have a large upper magnitude limit. Therefore, among these potential sources, the one with the highest exceedance probability for the seismic spectrum acceleration corresponding to the fundamental natural period should be selected as the designated earthquake occurrence zone based on the principle of maximizing occurrence probability.

[0058] Furthermore, based on the magnitude and distance of the set earthquake, the pre-created response spectrum database of the high dam project is interpolated step by step to obtain the dam site-related design response spectrum of the high dam project corresponding to the basic natural vibration period.

[0059] S204. For a set earthquake corresponding to the zero period of the high dam project, based on the magnitude and distance of the set earthquake, a response spectrum database of the high dam project is interpolated step by step to obtain a dam site-related design response spectrum corresponding to the zero period of the high dam project.

[0060] In this step, the set earthquake corresponding to the zero period is determined in the following way: under a given seismic fortification probability level, based on the site seismic safety evaluation, the seismic motion spectrum acceleration value corresponding to the zero period is determined; the potential earthquake source that contributes the most to the exceedance probability of the seismic motion spectrum acceleration value corresponding to the zero period is selected as the potential source; based on the principle of maximum probability of occurrence, the magnitude of the set earthquake is determined from the magnitudes of the potential sources that can produce seismic motion spectrum acceleration values ​​greater than the zero period at the dam site; based on the magnitude and site seismic safety evaluation, as well as the distribution of active faults corresponding to the potential source, the distance of the set earthquake is determined.

[0061] Furthermore, based on the magnitude and distance of the set earthquake, the pre-created response spectrum database of the high dam project is interpolated step by step to obtain the dam site-related design response spectrum of the high dam project corresponding to zero period.

[0062] The method for determining the dam site-related design response spectrum provided in the embodiment of the present application determines the basic natural vibration period of the high dam project based on the structural characteristic data of the high dam project, while considering two different frequency bands of the basic natural vibration period and the zero period, and based on the magnitude and distance of the set earthquake corresponding to the basic natural vibration period, and the magnitude and distance of the set earthquake corresponding to the zero period, obtains the dam site-related design response spectrum of the basic natural vibration period and the dam site-related design response spectrum of the zero period, so that the obtained dam site-related design response spectrum is closely related to the site conditions and structural characteristics of the high dam project, thereby improving the accuracy of the dam site-related design response spectrum, and further meeting the seismic design requirements of important high dam projects.

[0063] In some embodiments, the seismic spectrum acceleration value includes the seismic spectrum acceleration value before uncertainty correction for the dam site. For example, the seismic spectrum acceleration value corresponding to the fundamental natural vibration period is the seismic spectrum acceleration value before uncertainty correction for the fundamental natural vibration period, and the seismic spectrum acceleration value corresponding to the zero period is the seismic spectrum acceleration value before uncertainty correction for the zero period.

[0064] In some embodiments, the seismic motion spectrum acceleration values ​​include: seismic motion spectrum acceleration values ​​before dam site uncertainty correction and seismic motion spectrum acceleration values ​​after dam site uncertainty correction. For example, the seismic motion spectrum acceleration values ​​corresponding to the fundamental natural vibration period include the seismic motion spectrum acceleration values ​​corresponding to the fundamental natural vibration period before uncertainty correction and the seismic motion spectrum acceleration values ​​corresponding to the fundamental natural vibration period after uncertainty correction, and the seismic motion spectrum acceleration values ​​corresponding to the zero period include the seismic motion spectrum acceleration values ​​corresponding to the zero period before uncertainty correction and the seismic motion spectrum acceleration values ​​corresponding to the zero period after uncertainty correction.

[0065] In some embodiments, a response spectrum database for a high dam project is created by: obtaining strong vibration records of the bedrock; grading the strong vibration records of the bedrock according to magnitude and distance to obtain grading results; determining an average response spectrum corresponding to each grade of the grading results; and constructing a response spectrum database for the high dam project based on the average response spectrum corresponding to each grade of the grading results.

[0066] Correspondingly, based on the specific characteristics of the high dam project, the bedrock strong vibration records occurring within the plate are selected from the measured strong vibration acceleration data of the bedrock site in the NGAwest2 database. In some embodiments, the bedrock strong vibration records include the average shear wave velocity V within a depth of 30m below the surface. s30 Strong earthquakes with a speed greater than or equal to 500m / s, a magnitude (moment magnitude) greater than or equal to 6.0, and a distance (epicenter distance) less than or equal to 45km. Further, the bedrock strong earthquake records are classified according to the magnitude and distance to obtain the classification results. For example, Figure 3Schematic diagram of bedrock strong earthquake records classified by magnitude and distance provided for an exemplary embodiment of the present application.

[0067] like Figure 3 As shown in the figure, Mw represents magnitude (moment magnitude), Repi represents distance (epicenter distance), and the bedrock strong vibration records are divided into three magnitude grades according to the magnitude: △1 represents the first magnitude grade, ○2 represents the second magnitude grade, and ◇3 represents the third magnitude grade. The bedrock strong vibration records of each magnitude grade are divided into grades according to the distance, that is, the first magnitude grade is divided into bedrock strong vibration records corresponding to △1-1, △1-2, △1-3 and △1-4, the second magnitude grade is divided into bedrock strong vibration records corresponding to ○2-1, ○2-2, ○2-3 and ○2-4, and the third magnitude grade is divided into The bedrock strong vibration records corresponding to ◇3-1, ◇3-2, ◇3-3 and ◇3-4, for example, △1-1 represents the bedrock strong vibration record of 6.0≤Mw<6.4 and 0km≤Repi<15km, △1-2 represents the bedrock strong vibration record of 6.0≤Mw<6.4 and 15km≤Repi<25km, △1-3 represents the bedrock strong vibration record of 6.0≤Mw<6.4 and 25km≤Repi<35km, △1-4 represents the bedrock strong vibration record of 6.0≤Mw<6.4 and 35km≤Repi<45km.

[0068] Furthermore, the average response spectrum corresponding to each grade of the grading results is determined, for example, the horizontal average response spectrum curve family gradated by magnitude at different distances, the horizontal average response spectrum curve family gradated by distance at different magnitudes, the vertical average response spectrum curve family gradated by magnitude at different distances, and the vertical average response spectrum curve family gradated by distance at different magnitudes are determined. Based on the horizontal and vertical average response spectrum curve families gradated by distance and magnitude, a response spectrum database for the high dam project is constructed, wherein the damping ratio of the response spectrum database is 5%.

[0069] For example, for bedrock strong earthquake records, the magnitude is divided into 6.5, 7.0 and 7.5, and the distance is divided into 10km, 20km, 30km and 40km. Figure 4 This is a schematic diagram of a family of horizontal average response spectrum curves classified by magnitude at different distances provided by an exemplary embodiment of the present application. Figure 5 This is a schematic diagram of a family of horizontal average response spectrum curves classified by distance for different earthquake magnitudes provided by an exemplary embodiment of the present application. Figure 6 This is a schematic diagram of a family of vertical average response spectrum curves classified by magnitude at different distances provided by an exemplary embodiment of the present application. Figure 7 This is a schematic diagram of a family of vertical average response spectrum curves for different earthquake magnitudes divided by distance provided by an exemplary embodiment of the present application, wherein: Figures 4 to 7 a, b, c and d in the figure represent the response spectrum curves of the corresponding grades respectively.

[0070] like Figure 4 As shown, the horizontal average response spectrum curve family with a distance of 10 km and divided into tiers of 6.5, 7.0 and 7.5 for earthquake magnitudes, the horizontal average response spectrum curve family with a distance of 20 km and divided into tiers of 6.5, 7.0 and 7.5 for earthquake magnitudes, the horizontal average response spectrum curve family with a distance of 30 km and divided into tiers of 6.5, 7.0 and 7.5 for earthquake magnitudes, and the horizontal average response spectrum curve family with a distance of 40 km and divided into tiers of 6.5, 7.0 and 7.5 for earthquake magnitudes at different distances are displayed in sequence, forming a horizontal average response spectrum curve family divided into tiers of tiers of tiers according to earthquake magnitudes at different distances.

[0071] like Figure 5 As shown, the horizontal average response spectrum curve family of magnitude 6.5 divided into tiers of 10km, 20km, 30km and 40km, the horizontal average response spectrum curve family of magnitude 7.0 divided into tiers of 10km, 20km, 30km and 40km, and the horizontal average response spectrum curve family of magnitude 7.5 divided into tiers of 10km, 20km, 30km and 40km, constitute the horizontal average response spectrum curve family divided into tiers of distance for earthquakes of different magnitudes.

[0072] like Figure 6 As shown, the vertical average response spectrum curve family with a distance of 10 km and divided into tiers of 6.5, 7.0 and 7.5 magnitudes, the vertical average response spectrum curve family with a distance of 20 km and divided into tiers of 6.5, 7.0 and 7.5 magnitudes, the vertical average response spectrum curve family with a distance of 30 km and divided into tiers of 6.5, 7.0 and 7.5 magnitudes, and the vertical average response spectrum curve family with a distance of 40 km and divided into tiers of 6.5, 7.0 and 7.5 magnitudes are displayed in sequence, forming a vertical average response spectrum curve family divided into tiers of magnitudes at different distances.

[0073] like Figure 7 As shown, the vertical average response spectrum curve family of the earthquake with a magnitude of 6.5 divided into tiers of 10km, 20km, 30km and 40km, the vertical average response spectrum curve family of the earthquake with a magnitude of 7.0 divided into tiers of 10km, 20km, 30km and 40km, and the vertical average response spectrum curve family of the earthquake with a magnitude of 7.5 divided into tiers of 10km, 20km, 30km and 40km, are displayed in sequence, forming a vertical average response spectrum curve family of different magnitudes divided into tiers by distance.

[0074] On the basis of the above embodiments, in some embodiments, the response spectrum database of the high dam project is interpolated step by step based on the magnitude and distance of the set earthquake, including: interpolating the response spectrum database of the high dam project based on the magnitude of the set earthquake to obtain a first interpolation result; interpolating the first interpolation result based on the distance of the set earthquake; or interpolating the response spectrum database of the high dam project based on the distance of the set earthquake to obtain a second interpolation result; interpolating the second interpolation result based on the magnitude of the set earthquake.

[0075] For example, taking a 276m high arch dam project as an example, the earthquake magnitude Mw is set to 6.91 and the distance Repi is set to 11.3km. Based on the set earthquake magnitude, the response spectrum database of the high dam project is interpolated to obtain the first interpolation result. Correspondingly, Figure 8 A schematic diagram of a response spectrum obtained by interpolating a magnitude of 6.91 from a 10 km curve family provided in an exemplary embodiment of the present application. Figure 9 A schematic diagram of a response spectrum of magnitude 6.91 obtained by interpolating from a 20 km family of curves provided in an exemplary embodiment of the present application.

[0076] Furthermore, based on the distance of the set earthquake, the first interpolation result is interpolated. For example, Figure 10 A schematic diagram of a set earthquake response spectrum with a magnitude of 6.91 and a distance of 11.3 km obtained by interpolation from 10 km and 20 km is provided for an exemplary embodiment of the present application.

[0077] In summary, this application has at least the following advantages:

[0078] 1. The basic natural vibration period of the high dam project is determined based on the structural characteristic data of the high dam project, while considering two different frequency bands: the basic natural vibration period and the zero period. Based on the magnitude and distance of the set earthquake corresponding to the basic natural vibration period and the magnitude and distance of the set earthquake corresponding to the zero period, the dam site-related design response spectrum of the basic natural vibration period and the dam site-related design response spectrum of the zero period are obtained. The obtained dam site-related design response spectrum is closely related to the site conditions and structural characteristics of the high dam project, thereby improving the accuracy of the dam site-related design response spectrum and meeting the seismic design requirements of important high dam projects.

[0079] 2. In view of the specific characteristics of high dam projects, by statistically analyzing the average response spectra of specific magnitudes, distances, and shear wave velocity ranges as the response spectrum database for high dam projects, the distance conversion problem between point sources and fault plane sources, as well as the difficulty in selecting the version of the NGA response spectrum attenuation relationship, can be effectively avoided.

[0080] The following are device embodiments of the present application, which can be used to implement the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

[0081] Figure 11 A schematic diagram of a structure of a device for determining a dam site-related design response spectrum provided by an exemplary embodiment of this application. Figure 11 As shown, the device 110 for determining the dam site-related design response spectrum includes an acquisition module 111, a determination module 112, a first processing module 113, and a second processing module 114, wherein:

[0082] An acquisition module 111 is used to acquire structural characteristic data of a high dam project to be created;

[0083] A determination module 112 is used to determine the basic natural vibration period of the high dam project based on the structural characteristic data;

[0084] The first processing module 113 is configured to perform step-by-step interpolation on the high dam project response spectrum database based on the magnitude and distance of a set earthquake corresponding to the basic natural vibration period, thereby obtaining a dam site-related design response spectrum corresponding to the basic natural vibration period of the high dam project;

[0085] The second processing module 114 is used to perform step-by-step interpolation on the response spectrum database of the high dam project based on the magnitude and distance of the set earthquake corresponding to the zero period of the high dam project, so as to obtain the dam site-related design response spectrum of the high dam project corresponding to the zero period.

[0086] In one possible implementation, a response spectrum database for a high dam project is created by: obtaining strong vibration records of the bedrock; grading the strong vibration records of the bedrock according to magnitude and distance to obtain grading results; determining an average response spectrum corresponding to each grade of the grading results; and constructing a response spectrum database for the high dam project based on the average response spectrum corresponding to each grade of the grading results.

[0087] In one possible implementation, the bedrock strong motion record includes the average shear wave velocity V within a depth of 30 m below the surface. s30 Strong earthquakes with a speed greater than or equal to 500 m / s, a magnitude (moment magnitude) greater than or equal to 6.0, and a distance (epicenter distance) less than or equal to 45 km.

[0088] In one possible implementation, the first processing module 113 may be specifically used to: interpolate the response spectrum database of the high dam project based on the magnitude of a set earthquake to obtain a first interpolation result; interpolate the first interpolation result based on the distance of a set earthquake; or interpolate the response spectrum database of the high dam project based on the distance of a set earthquake to obtain a second interpolation result; and interpolate the second interpolation result based on the magnitude of a set earthquake.

[0089] In one possible implementation, the set earthquake is determined in the following manner: under a given seismic fortification probability level, based on the site seismic safety evaluation, the seismic motion spectrum acceleration value corresponding to the basic natural vibration period is determined; the potential earthquake source that contributes the greatest probability of exceeding the seismic motion spectrum acceleration value corresponding to the basic natural vibration period is selected as the potential source; based on the principle of maximum probability of occurrence, the magnitude of the set earthquake is determined from the magnitudes of the potential sources that can produce seismic motion spectrum acceleration values ​​greater than the basic natural vibration period at the dam site; based on the magnitude and site seismic safety evaluation, as well as the distribution of active faults corresponding to the potential source, the distance of the set earthquake is determined.

[0090] In a possible implementation, the seismic motion spectrum acceleration value includes: the seismic motion spectrum acceleration value before dam site uncertainty correction, and / or the seismic motion spectrum acceleration value after dam site uncertainty correction.

[0091] In a possible implementation, the seismic motion spectrum acceleration value includes: the seismic motion spectrum acceleration value before dam site uncertainty correction and the seismic motion spectrum acceleration value after dam site uncertainty correction.

[0092] The device for determining the dam site-related design response spectrum provided in the embodiment of the present application can implement the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar and will not be repeated here.

[0093] It should be noted that it should be understood that the division of the various modules of the above device is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, these modules can all be implemented in the form of software called by a processing element; or they can all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, the processing module can be a separately established processing element, or it can be integrated into a chip of the above device. In addition, it can also be stored in the memory of the above device in the form of program code, and called by a processing element of the above device to perform the functions of the above processing module. The implementation of other modules is similar. In addition, these modules can all or partly be integrated together, or they can be implemented independently. The processing element here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed by the hardware integrated logic circuit in the processor element or by instructions in the form of software.

[0094] For example, the above modules can be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), one or more microprocessors (DSPs), or one or more field programmable gate arrays (FPGAs). For another example, when a module is implemented by scheduling program code through a processing element, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0095] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. Available media may be magnetic media (eg, floppy disks, hard disks, tapes), optical media (eg, Digital Video Discs (DVDs)), or semiconductor media (eg, solid state disks (SSDs)).

[0096] Figure 12 This is a schematic diagram of the structure of an electronic device provided by an exemplary embodiment of the present application. Figure 5 As shown, the electronic device 120 of this embodiment includes:

[0097] At least one processor 121; and a memory 122 communicatively connected to the at least one processor;

[0098] The memory 122 stores instructions that can be executed by the at least one processor 121, and the instructions are executed by the at least one processor 121 to enable the electronic device to execute the method as described in any of the above embodiments.

[0099] Optionally, the memory 122 may be independent or integrated with the processor 121 .

[0100] The memory 122 may include a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0101] Processor 121 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application. Specifically, when implementing the method for determining the dam site-related design response spectrum described in the aforementioned method embodiment, the electronic device may be, for example, an electronic device with processing capabilities, such as a server.

[0102] Optionally, the electronic device may further include a communication interface 123. In a specific implementation, if the communication interface 123, the memory 122, and the processor 121 are implemented independently, the communication interface 123, the memory 122, and the processor 121 may be interconnected via a bus and communicate with each other. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be divided into address buses, data buses, control buses, etc., but this does not mean that there is only one bus or only one type of bus.

[0103] Optionally, in a specific implementation, if the communication interface 123, the memory 122 and the processor 121 are integrated on a chip, the communication interface 123, the memory 122 and the processor 121 can complete communication through an internal interface.

[0104] The implementation principle and technical effects of the electronic device provided in this embodiment can be found in the aforementioned embodiments and will not be described in detail here.

[0105] An embodiment of the present application also provides a computer-readable storage medium, which stores computer execution instructions. When the computer execution instructions are executed, they are used to implement the method steps in the above method embodiment. The specific implementation method and technical effects are similar and will not be repeated here.

[0106] The computer-readable storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The computer-readable storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0107] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may be located in an application-specific integrated circuit. Of course, the processor and the readable storage medium may also be discrete components within the apparatus for determining a dam site-related design response spectrum.

[0108] An embodiment of the present application also provides a computer program product, including a computer program. When the computer program is executed, the method steps in the above method embodiment are implemented. The specific implementation method and technical effects are similar and will not be repeated here.

[0109] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0110] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A method for determining a dam site-related design response spectrum, characterized in that: include: Acquire structural characteristic data of the high dam project to be created, wherein the structural characteristic data includes dam body height, dam crest length, dam body volume, dam foundation width, construction method, anti-seepage measures, dam body top setting, and monitoring system setting; determining a basic natural vibration period of the high dam project based on the structural characteristic data; For a set earthquake corresponding to the basic natural vibration period, based on the magnitude and distance of the set earthquake, a response spectrum database of the high dam project is interpolated step by step to obtain a dam site-related design response spectrum of the high dam project corresponding to the basic natural vibration period; For a set earthquake corresponding to the zero period of the high dam project, based on the magnitude and distance of the set earthquake, the response spectrum database of the high dam project is interpolated step by step to obtain the dam site-related design response spectrum of the high dam project corresponding to the zero period.

2. The determination method according to claim 1, characterized in that The response spectrum database of the high dam project is created in the following way: Obtain bedrock strong vibration records; Classifying the bedrock strong vibration record according to magnitude and distance to obtain a classification result; Determining an average response spectrum corresponding to each of the binned results; Based on the average response spectrum corresponding to each grade of the grading results, a response spectrum database of the high dam project is constructed.

3. The determination method according to claim 2, characterized in that: The bedrock strong vibration record includes the average shear wave velocity V within a depth of 30m below the surface. s30 Strong earthquakes with a velocity greater than or equal to 500 m / s, a moment magnitude greater than or equal to 6.0, and an epicenter distance less than or equal to 45 km.

4. The determination method according to any one of claims 1 to 3, characterized in that: The step-by-step interpolation of the response spectrum database of the high dam project based on the magnitude and distance of the set earthquake includes: Based on the magnitude of a set earthquake, interpolating the response spectrum database of the high dam project to obtain a first interpolation result; based on the distance of a set earthquake, interpolating the first interpolation result; Alternatively, based on a set earthquake distance, the response spectrum database of the high dam project is interpolated to obtain a second interpolation result; based on a set earthquake magnitude, the second interpolation result is interpolated.

5. The determination method according to any one of claims 1 to 3, characterized in that: The set earthquake is determined by: Under a given seismic fortification probability level, based on the site seismic safety evaluation, determining the seismic motion spectrum acceleration value corresponding to the basic natural vibration period; Selecting the potential earthquake source that has the greatest contribution to the exceedance probability of the earthquake motion spectrum acceleration value corresponding to the basic natural vibration period as the potential source; Based on the principle of maximum probability of occurrence, the magnitude of the set earthquake is determined from the magnitudes of earthquakes that can produce seismic spectrum acceleration values ​​greater than the basic natural vibration period at the dam site among the potential sources; The distance of the set earthquake is determined based on the magnitude and the seismic safety evaluation of the site, as well as the distribution of active faults corresponding to the potential source.

6. The determination method according to claim 5, characterized in that: The seismic motion spectrum acceleration value includes: the seismic motion spectrum acceleration value before dam site uncertainty correction, and / or the seismic motion spectrum acceleration value after dam site uncertainty correction.

7. A device for determining a dam site-related design response spectrum, characterized in that: include: An acquisition module is used to obtain structural characteristic data of the high dam project to be created; a determination module, configured to determine a basic natural vibration period of the high dam project based on the structural characteristic data, wherein the structural characteristic data includes dam body height, dam crest length, dam body volume, dam foundation width, construction method, anti-seepage measures, dam body top setting, and monitoring system setting; A first processing module is configured to perform step-by-step interpolation on a response spectrum database of the high dam project based on the magnitude and distance of a set earthquake corresponding to the basic natural vibration period, to obtain a dam site-related design response spectrum of the high dam project corresponding to the basic natural vibration period; The second processing module is used to perform step-by-step interpolation on the response spectrum database of the high dam project based on the magnitude and distance of the set earthquake corresponding to the zero period of the high dam project, so as to obtain the dam site-related design response spectrum of the high dam project corresponding to the zero period.

8. An electronic device, characterized in that: include: a processor, and a memory communicatively connected to the processor; The memory is used to store computer-executable instructions; The processor is configured to execute the computer-executable instructions to implement a method for determining a dam site-related design response spectrum according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which, when executed, are used to implement a method for determining a dam site-related design response spectrum according to any one of claims 1 to 6.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed, a method for determining a dam site-related design response spectrum according to any one of claims 1 to 6 is implemented.

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