Dam rockfill material elastic modulus in-situ measurement device, method, equipment and medium

Abstract

This application discloses an in-situ measurement device, method, equipment, and medium for the elastic modulus of dam rockfill. The in-situ measurement device for the elastic modulus of dam rockfill includes: a pre-embedded component, installed on the previous compacted layer of the dam rockfill, used to measure the thickness of the current compacted layer; a counterweight, used to apply pressure to the rockfill in the area to be inspected in the current compacted layer, causing compression deformation of the rockfill; a leveling component, associated with the counterweight, used to measure the deformation of the rockfill caused by the counterweight; and a measuring unit, connected to both the pre-embedded component and the leveling component, to determine the in-situ parameters of the elastic modulus of the dam rockfill based on the thickness of the current compacted layer and the deformation of the rockfill. Using this application, the thickness of the compacted layer is measured by the pre-embedded component, and the deformation of the rockfill caused by the counterweight is read by leveling, thereby achieving efficient in-situ measurement of the elastic modulus of dam rockfill, providing reliable support for deformation calculation of high rockfill dams.

Description

Technical Field

[0001] This application relates to the field of rock analysis technology, specifically to an in-situ measurement device, method, equipment, and medium for the elastic modulus of dam rockfill. Background Technology

[0002] In the field of rockfill dam construction, the rockfill modulus is a key mechanical indicator for calculating the settlement deformation of rockfill dams, and it is usually obtained through indoor uniaxial or triaxial tests. However, on the one hand, indoor test specimens are inevitably disturbed, resulting in significant differences in properties from the original specimens; on the other hand, due to the size limitations of the testing instruments, the rockfill modulus results obtained from indoor tests are affected by size effects, making it difficult to characterize the mechanical deformation performance at the actual engineering scale. These limitations of indoor tests may lead to significant differences between the calculated and measured values ​​of deformation in high rockfill dams, making it difficult to provide reliable data support for engineering tests. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the existing technology, it is desirable to provide an in-situ measurement device, method, equipment and medium for the elastic modulus of rockfill in dams. The device measures the thickness of the compacted layer by pre-embedded components and reads the deformation of the rockfill caused by the weight by leveling, thereby realizing the in-situ and efficient determination of the elastic modulus of rockfill in dams and providing reliable support for the deformation calculation of high rockfill dams.

[0004] In a first aspect, embodiments of this application provide an in-situ measuring device for the elastic modulus of dam rockfill, comprising: An embedded component is installed on the previous compacted layer of the dam's rockfill and is used to measure the thickness of the current compacted layer. A counterweight is used to apply pressure to the rockfill in the area to be inspected in the current compacted layer, so as to cause the rockfill to undergo compressive deformation. A leveling measuring component, which is associated with the weight body, is used to measure the deformation of the rockfill caused by the weight body; The measuring unit is connected to the embedded component and the leveling component respectively, so as to determine the in-situ parameters of the elastic modulus of the dam rockfill material based on the thickness of the current compacted layer and the deformation of the rockfill body.

[0005] In some examples, the embedded components include: A rigid plate, which is laid on the previous compacted layer; The measuring rod includes a fixed rod, an outer sliding rod, an inner sliding rod, and an inclinometer. The bottom end of the fixed rod is connected to the rigid plate via a ball joint. The inner sliding rod is embedded in the fixed rod and slidably connected to it. The outer sliding rod is sleeved on the fixed rod and slidably connected to it. The inner sliding rod is equipped with a scale to measure the thickness of the current compacted layer by reading the scale and the inclinometer.

[0006] In some examples, the retaining rod is also connected to the rigid plate by spring tension.

[0007] In some examples, the counterweight comprises a plurality of stackable rigid disc-shaped steel ingots, each of which is used to apply pressure to the rockfill to cause the rockfill to compress and deform.

[0008] In some examples, among multiple stackable rigid disc-shaped steel ingots, the steel ingot directly in contact with the rockfill body is a primary counterweight, and the primary counterweight has multiple fasteners on its side.

[0009] In some examples, the leveling component includes: A leveling rod, which is mounted on the fixture; A level instrument, which works in conjunction with a leveling rod, to measure the deformation of the rockfill caused by the counterweight.

[0010] In some examples, the measuring unit is used for: The elastic stress of the rockfill body is calculated based on the mass and radius of the ballast body. The elastic strain of the rockfill is calculated based on the thickness of the current compacted layer and the deformation of the rockfill. Based on the elastic stress and elastic strain of the rockfill, the in-situ parameters of the elastic modulus of the dam rockfill are obtained.

[0011] Secondly, embodiments of this application provide an in-situ method for measuring the elastic modulus of dam rockfill, including: Measure the thickness of the current compacted layer; Pressure is applied to the rockfill in the area to be inspected in the current compacted layer to cause the rockfill to undergo compressive deformation. Measure the deformation of the rockfill caused by the ballast body; Based on the thickness of the current compacted layer and the deformation of the rockfill, the in-situ parameters of the elastic modulus of the dam rockfill are determined.

[0012] Thirdly, embodiments of this application provide a computing device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the in-situ measurement device for the elastic modulus of dam rockfill as described in the embodiments of the first aspect of this application.

[0013] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the in-situ measurement device for the elastic modulus of dam rockfill as described in the embodiments of the first aspect of this application.

[0014] The in-situ measurement device, method, equipment, and medium for the elastic modulus of dam rockfill materials proposed in this application consist of a pre-embedded component, a counterweight, a leveling component, and a measuring unit. The pre-embedded component is installed on the previous compacted layer of the dam rockfill material and is used to measure the thickness of the current compacted layer. The counterweight applies pressure to the rockfill material in the area to be inspected within the current compacted layer, causing compression deformation. The leveling component is associated with the counterweight and is used to measure the deformation of the rockfill material caused by the counterweight. The measuring unit is connected to both the pre-embedded component and the leveling component to determine the in-situ parameters of the elastic modulus of the dam rockfill material based on the thickness of the current compacted layer and the deformation of the rockfill material. Thus, by measuring the thickness of the compacted layer through the pre-embedded component and reading the deformation of the rockfill material caused by the counterweight through leveling, efficient in-situ measurement of the elastic modulus of the dam rockfill material is achieved, providing reliable support for deformation calculation of high rockfill dams.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of an in-situ measuring device for the elastic modulus of dam rockfill according to an embodiment of this application; Figure 2 This is a schematic diagram illustrating the in-situ measurement of the elastic modulus of dam rockfill according to one embodiment of this application. Figure 3 This is a schematic diagram of the embedded components arranged on the surface of the previous compacted layer according to an embodiment of this application; Figure 4 This is a schematic diagram of the structure of a rigid plate according to an embodiment of this application; Figure 5 This is a schematic diagram of the external structure of the measuring rod according to one embodiment of this application; Figure 6This is a schematic cross-sectional view of the measuring rod in a non-stretched state according to an embodiment of this application; Figure 7 This is a schematic cross-sectional view of a measuring rod stretched to its limit according to an embodiment of this application. Figure 8 This is a top view of a primary counterweight body according to an embodiment of this application; Figure 9 for Figure 8 A magnified view of part A where the fixation device is located; Figure 10 for Figure 9 The front view corresponding to the enlarged partial view of part A where the fixation device is located; Figure 11 for Figure 9 A side view corresponding to a partial enlarged view of part A where the fixation device is located; Figure 12 This is a schematic diagram illustrating the relationship between riprap paving and embedded components in one embodiment of this application; Figure 13 This is an example of determining the elastic modulus using linear fitting of in-situ test data, according to one embodiment of this application. Figure 14 This is a flowchart illustrating an embodiment of the method for in-situ measurement of the elastic modulus of dam rockfill materials according to this application; Figure 15 A schematic diagram of a computing device suitable for implementing embodiments of this application is shown. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant application and not intended to limit the application. Furthermore, it should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] The following describes, with reference to the accompanying drawings, an in-situ measurement device, method, equipment, and medium for the elastic modulus of dam rockfill according to embodiments of this application.

[0020] Figure 1 This is a schematic diagram of an in-situ measuring device for the elastic modulus of dam rockfill, according to an embodiment of this application. Figure 1 As shown, and in combination Figure 2 An in-situ measuring device for the elastic modulus of dam rockfill according to an embodiment of this application includes: an embedded component 110, a counterweight 120, a leveling component 130, and a measuring unit 140, wherein: The pre-embedded component 110 is set on the previous compacted layer of the dam rockfill and is used to measure the thickness of the current compacted layer.

[0021] In one embodiment of this application, such as Figure 3 As shown, the embedded component 110 includes: a rigid plate laid on the previous compacted layer; and a measuring rod including a fixed rod, an outer sliding rod, an inner sliding rod, and an inclinometer. The bottom end of the fixed rod is connected to the rigid plate via a ball joint. The inner sliding rod is embedded in the fixed rod and slidably connected to it. The outer sliding rod is sleeved on the fixed rod and slidably connected to it. The inner sliding rod is equipped with a scale to measure the thickness of the current compacted layer by reading the scale and the inclinometer.

[0022] The rigid plate's panel is made of high-strength steel plate with a thickness of not less than 10mm. A structural diagram of the rigid plate in a specific example is shown below. Figure 4 As shown, Q550 steel is used, with dimensions of 1500mm in length, 1500mm in width, and 16mm in thickness. A grid-shaped reinforcing rib is set at the bottom of the rigid plate. The reinforcing rib is HRB400, with a diameter of 14mm and a spacing of 500mm, dividing the steel plate into four small sections of 500mm × 500mm.

[0023] Structural reference of measuring rod Figures 5-7 ,in, Figure 5 This is a schematic diagram of the external structure of the measuring rod. Figure 6 This is a schematic cross-sectional view of the measuring rod in its non-stretched state. Figure 7 This is a schematic cross-sectional view of the measuring rod stretched to its limit. Figures 5-7 As shown, the main structure of the measuring rod is composed of multiple high-strength hollow tubing sections, with a maximum length of 1500mm. It employs a nested sliding telescopic structure. The top of the fixed rod has a fixing ring, the inner ring of which is slidably connected to the outer wall of the inner sliding rod, and the outer ring of which is slidably connected to the inner wall of the outer sliding rod. The inner wall of the fixed rod has a groove along its length axis, and a circumferential fixing groove is located at the top of the groove. The bottom of the inner sliding rod has a sliding key that slides in contact with the groove. The sliding key can move linearly along the groove. When the sliding key slides to the top of the groove… When the inner slide rod is fully extended upwards to its limit, the measuring rod reaches its maximum length. By rotating the inner slide rod clockwise, the sliding key can be moved into the fixing groove, thereby fixing the inner slide rod and preventing it from sliding down under the influence of gravity. The bottom end of the outer slide rod is provided with a sliding ring that slides through the outer wall of the fixing rod. The above structure allows both the outer and inner slide rods to move independently along the axis of the fixing rod. The outer and inner slide rods shorten when subjected to axial pressure and lengthen when subjected to axial tension.

[0024] like Figure 6 and Figure 7 As shown, the top of the outer sliding rod is equipped with an outward-folding metal protective cover, which is rotatably connected to the measuring rod via a pin. This protects the internal structure of the measuring rod from impact and reduces the entry of sand, gravel, and other debris into the measuring rod. This ensures that even after the outer wall of the measuring rod is tightly wrapped by the piled stone, the inner sliding rod can still extend and slide along the axis.

[0025] An inclinometer is embedded and fixedly connected to the top of the inner wall of the inner sliding rod. The reading dial of the inclinometer faces upward and is used to measure the tilt angle of the measuring rod. Furthermore, the top of the inner sliding rod has a transparent encapsulation sheet to prevent stone particles from entering the interior of the measuring rod without affecting the reading of the inclinometer. The encapsulation sheet is made of polycarbonate plate, and the distance between the fixed position of the inclinometer and the encapsulation sheet is 10mm. The outer wall of the inner sliding rod is engraved with a micrometer scale for reading the length of the measuring rod protruding from the rock pile.

[0026] In one embodiment of this application, the fixing rod is also connected to the rigid plate by spring tension. This connection method ensures that the measuring rod can tilt relative to the rigid plate in the vertical plane, thereby ensuring that when the measuring rod is subjected to horizontal impact force during the paving of the rockfill, the connection will not fail due to energy accumulation at the connection point.

[0027] In the actual measurement process, such as Figure 12 As shown, after the compaction and testing of the previous compaction layer is completed, before the paving of the current compaction layer's rockfill, embedded components 110 are installed on the surface layer to ensure that the center point of the rigid plate of the embedded components 110 is located at the designed measuring point. After the embedded components 110 are installed, the inner sliding rod is pulled up to its limit position and rotated clockwise to allow the sliding key to enter the fixing groove and fix the inner sliding rod, thus ensuring that the inner sliding rod does not slide down under gravity. The outer sliding rod is pulled up to its limit position, and the outward-folding protective cover is closed to ensure that the outer sliding rod does not slide down under gravity under the support of the inner sliding rod. In addition, during the paving of the rockfill, care should be taken to protect the measuring rod to prevent the mechanical equipment from directly rolling or impacting the measuring rod before the loose material covers it, until the paving process is completed. After the paving is completed, the outward-folding protective cover is opened, the inner sliding rod is rotated counterclockwise to allow the sliding key to slide out of the fixing groove and into the sliding groove, and the outward-folding protective cover is closed.

[0028] The weight 120 is used to apply pressure to the rockfill in the area to be inspected in the current compacted layer, so as to cause the rockfill to undergo compression deformation.

[0029] In one embodiment of this application, the counterweight 120 includes a plurality of stackable rigid disc-shaped steel ingots, each of which is used to apply pressure to the rockfill body to cause the rockfill body to undergo compressive deformation.

[0030] In one embodiment of this application, among a plurality of stackable rigid disc-shaped steel ingots, the steel ingot that is in direct contact with the rock pile is a primary counterweight 120, and the primary counterweight 120 is provided with a plurality of fasteners on its side.

[0031] In a specific example, such as Figure 8 As shown, four fasteners are installed on the primary counterweight. Figures 9-11 The images show the top, front, and side views of the fixture. The fixture includes a base, radial bolts, side plates, tangential bolts, and a mounting body. The base is connected to the primary counterweight via the radial bolts and can rotate around the radial bolts in the relaxed state. The side plates are welded to the base and fixedly connected to it. The mounting body is connected to the side plates via tangential bolts and can rotate around the tangential bolts in the relaxed state. The mounting body has a mounting groove that matches the size of the leveling rod. During use, the mounting body and the base can be adjusted by rotating to ensure that the leveling rod is perpendicular to the horizontal plane.

[0032] During compaction, the outer sliding rod of the measuring rod will shorten synchronously with the settlement of the rock pile. After compaction, open the outward-folding protective cover of the measuring rod and pull the inner sliding rod upward to its limit position, that is, the measuring rod reaches its maximum length. L The length of the inner slide rod protruding from the opening of the outer slide rod is read using a micrometer scale on the outer wall of the inner slide rod. L The tilt angle of the measuring rod is read using an inclinometer. θ Then the current thickness of the compacted layer can be obtained. .

[0033] The leveling measuring component 130 is associated with the weight body 120 and is used to measure the deformation of the rockfill caused by the weight body.

[0034] In one embodiment of this application, the leveling measuring component 130 includes: a leveling rod, which is mounted on the fixture; and a level instrument, which cooperates with the leveling rod to measure the deformation of the rockfill caused by the counterweight.

[0035] like Figure 2 As shown, a first-stage ballast body 120 is placed at the measuring point. A leveling rod is installed and its fixing device is adjusted to ensure it is perpendicular to the horizontal plane. The level instrument is then set up to read the leveling rod scale. Leveling rod readings are sequentially completed in all fixing directions, and the average value is taken as the current leveling rod reading. A second-stage ballast body 120 is added on top of the first ballast body 120, and the above reading process is repeated. Finally, the deformation of the rockfill caused by each stage of ballast body 120 is obtained.

[0036] The measuring unit 140 is connected to the embedded component 110 and the leveling component 130 respectively, so as to determine the in-situ parameters of the elastic modulus of the dam rockfill material based on the thickness of the current compacted layer and the deformation of the rockfill body.

[0037] In one embodiment of this application, the measuring unit 140 is used to: calculate the elastic stress of the rockfill body based on the mass and radius of the weight body 120; calculate the elastic strain of the rockfill body based on the thickness of the current compacted layer and the deformation of the rockfill body; and obtain the in-situ parameters of the elastic modulus of the dam rockfill material based on the elastic stress and elastic strain of the rockfill body.

[0038] Specifically, the calculation process for the elastic stress of the rockfill is shown in Formula 1: (1) in, For the first i Elastic stress in a graded rockfill mass; For the first i The total mass of the 120-stage weight body; Let 120 be the radius of the counterweight.

[0039] The calculation process for the elastic strain of the riprap is shown in Formula 2: (2) in, For the first i Elastic strain of the riprap mass; For the first i Deformation of the riprap mass; This represents the current thickness of the compacted layer.

[0040] Based on the above steps, multiple sets of one-to-one corresponding elastic stresses and elastic strains of the rockfill can be obtained through in-situ tests, such as... Figure 13 As shown, the data is linearly fitted using Equation 3: (3) Among them, the slope of the fitted line This is the in-situ elastic modulus of the rockfill at the measuring point.

[0041] The in-situ measurement device for the elastic modulus of dam rockfill according to an embodiment of this application comprises a pre-embedded component, a counterweight, a leveling component, and a measuring unit. The pre-embedded component is installed on the previous compacted layer of the dam rockfill and is used to measure the thickness of the current compacted layer. The counterweight applies pressure to the rockfill in the area to be inspected within the current compacted layer, causing compression deformation. The leveling component is associated with the counterweight and is used to measure the deformation of the rockfill caused by the counterweight. The measuring unit is connected to both the pre-embedded component and the leveling component to determine the in-situ parameters of the elastic modulus of the dam rockfill based on the thickness of the current compacted layer and the deformation of the rockfill. Thus, by measuring the thickness of the compacted layer through the pre-embedded component and reading the deformation of the rockfill caused by the counterweight through leveling, efficient in-situ measurement of the elastic modulus of the dam rockfill is achieved, providing reliable support for deformation calculation of high rockfill dams.

[0042] Figure 14 This is a flowchart of an in-situ measurement method for the elastic modulus of dam rockfill, according to an embodiment of this application. Figure 14 As shown, the in-situ measurement method for the elastic modulus of dam rockfill according to an embodiment of this application is implemented based on the in-situ measurement device for the elastic modulus of dam rockfill in any of the above embodiments. The method includes the following steps: S1401: Measure the thickness of the current compacted layer; S1402: Apply pressure to the rockfill in the area to be inspected in the current compacted layer to cause the rockfill to undergo compressive deformation; S1403: Measure the deformation of the rockfill caused by the ballast body; S1404: Determine the in-situ parameters of the elastic modulus of the dam rockfill based on the thickness of the current compacted layer and the deformation of the rockfill body.

[0043] According to the in-situ measurement method for the elastic modulus of dam rockfill according to the embodiments of this application, the thickness of the current compacted layer is first measured; then, pressure is applied to the rockfill body in the area to be inspected under the current compacted layer to cause compression deformation; then, the deformation of the rockfill body caused by the counterweight is measured; finally, the in-situ parameters of the elastic modulus of the dam rockfill are determined based on the thickness of the current compacted layer and the deformation of the rockfill body. Thus, by measuring the thickness of the compacted layer through pre-embedded components and reading the deformation of the rockfill body caused by the counterweight through leveling, the in-situ efficient determination of the elastic modulus of dam rockfill is achieved, providing reliable support for the deformation calculation of high rockfill dams.

[0044] It should be noted that the specific implementation of the in-situ measurement method of the elastic modulus of dam rockfill in this application embodiment is similar to the specific implementation of the in-situ measurement device of the elastic modulus of dam rockfill in this application embodiment. Please refer to the description in the method section for details, which will not be repeated here.

[0045] The following is for reference. Figure 15 , Figure 15 A schematic diagram of a computing device structure suitable for implementing embodiments of this application is shown.

[0046] like Figure 15 As shown, the computer system includes a central processing unit (CPU) 1001, which can perform various appropriate actions and processes based on programs stored in read-only memory (ROM) 1002 or programs loaded from storage section 1008 into random access memory (RAM) 1003. RAM 1003 also stores various programs and data required for the system's operating instructions. CPU 1001, ROM 1002, and RAM 1003 are interconnected via bus 1004. Input / output (I / O) interface 1005 is also connected to bus 1004.

[0047] The following components are connected to I / O interface 1005: an input section 1006 including a keyboard, mouse, etc.; an output section 1007 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 1008 including a hard disk, etc.; and a communication section 1009 including a network interface card such as a LAN card, modem, etc. The communication section 1009 performs communication processing via a network such as the Internet. A drive 1010 is also connected to I / O interface 1005 as needed. A removable medium 1011, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 1010 as needed so that computer programs read from it can be installed into storage section 1008 as needed.

[0048] Specifically, according to embodiments of this application, the flowchart above refers to... Figure 1 The described process can be implemented as a computer software program. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowchart. In such an embodiment, the computer program contains program code for performing the methods shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via communication section 1009, and / or installed from removable medium 1011. When the computer program is executed by central processing unit (CPU) 1001, it performs the functions defined in the system of this application.

[0049] It should be noted that the computer-readable medium shown in this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0050] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operational instructions of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two connected blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified functions or operational instructions, or using a combination of dedicated hardware and computer instructions.

[0051] The units or modules described in the embodiments of this application can be implemented in software or hardware. The described units or modules can also be located in a processor. The names of these units or modules do not, in certain circumstances, constitute a limitation on the unit or module itself.

[0052] In another aspect, this application also provides a computer-readable storage medium, which may be included in the computing device described in the above embodiments, or may exist independently and not assembled into the computing device. The computer-readable storage medium stores one or more programs that, when used by one or more processors, execute the in-situ measurement method for the elastic modulus of dam rockfill described in this application. Specifically: measuring the thickness of the current compacted layer; applying pressure to the rockfill in the area to be inspected within the current compacted layer to cause compressive deformation of the rockfill; measuring the deformation of the rockfill caused by the counterweight; and determining the in-situ parameters of the elastic modulus of the dam rockfill based on the thickness of the current compacted layer and the deformation of the rockfill.

[0053] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the foregoing disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An in-situ measuring device for the elastic modulus of dam rockfill, characterized in that, include: An embedded component is installed on the previous compacted layer of the dam's rockfill and is used to measure the thickness of the current compacted layer. A counterweight is used to apply pressure to the rockfill in the area to be inspected in the current compacted layer, so as to cause the rockfill to undergo compressive deformation. A leveling measuring component, which is associated with the weight body, is used to measure the deformation of the rockfill caused by the weight body; The measuring unit is connected to the embedded component and the leveling component respectively, so as to determine the in-situ parameters of the elastic modulus of the dam rockfill material based on the thickness of the current compacted layer and the deformation of the rockfill body.

2. The in-situ measuring device for the elastic modulus of dam rockfill as described in claim 1, characterized in that, The embedded components include: A rigid plate, which is laid on the previous compacted layer; The measuring rod includes a fixed rod, an outer sliding rod, an inner sliding rod, and an inclinometer. The bottom end of the fixed rod is connected to the rigid plate via a ball joint. The inner sliding rod is embedded in the fixed rod and slidably connected to it. The outer sliding rod is sleeved on the fixed rod and slidably connected to it. The inner sliding rod is equipped with a scale to measure the thickness of the current compacted layer by reading the scale and the inclinometer.

3. The in-situ measuring device for the elastic modulus of dam rockfill as described in claim 2, characterized in that, The fixing rod is also connected to the rigid plate by spring tension.

4. The in-situ measuring device for the elastic modulus of dam rockfill as described in claim 1, characterized in that, The counterweight comprises multiple stackable rigid disc-shaped steel ingots, each of which is used to apply pressure to the rockfill to cause it to compress and deform.

5. The in-situ measuring device for the elastic modulus of dam rockfill as described in claim 4, characterized in that, Among the multiple stackable rigid disc-shaped steel ingots, the steel ingot that is in direct contact with the rockfill body is the primary counterweight, and the primary counterweight is provided with multiple fasteners on its side.

6. The in-situ measuring device for the elastic modulus of dam rockfill as described in claim 5, characterized in that, The leveling measurement component includes: A leveling rod, which is mounted on the fixture; A level instrument, which works in conjunction with a leveling rod, to measure the deformation of the rockfill caused by the counterweight.

7. The in-situ measuring device for the elastic modulus of dam rockfill as described in any one of claims 1-6, characterized in that, The measuring unit is used for: The elastic stress of the rockfill body is calculated based on the mass and radius of the ballast body. The elastic strain of the rockfill is calculated based on the thickness of the current compacted layer and the deformation of the rockfill. Based on the elastic stress and elastic strain of the rockfill, the in-situ parameters of the elastic modulus of the dam rockfill are obtained.

8. A method for in-situ measurement of the elastic modulus of dam rockfill, wherein the method is based on the in-situ measurement device for the elastic modulus of dam rockfill as described in any one of claims 1-7, characterized in that, The method includes: Measure the thickness of the current compacted layer; Pressure is applied to the rockfill in the area to be inspected in the current compacted layer to cause the rockfill to undergo compressive deformation. Measure the deformation of the rockfill caused by the ballast body; Based on the thickness of the current compacted layer and the deformation of the rockfill, the in-situ parameters of the elastic modulus of the dam rockfill are determined.

9. A computing device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the in-situ measurement device for the elastic modulus of dam rockfill as described in claim 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the in-situ measurement device for the elastic modulus of dam rockfill as described in claim 8.

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