Splitting and grouting integrated rock mass structural plane sample preparation device

Abstract

The utility model relates to a splitting and grouting integrated rock mass structural plane sample preparation device which comprises a splitting unit, a transfer unit, a grouting unit and a sample mold, and the splitting unit comprises a bottom plate, two side plates, a pressing plate and a pressing head; the transferring unit comprises a sliding rail, a baffle and a rail arranged on the upper surface of the bottom plate, a sliding part connected with the sliding rail in a sliding fit mode is fixedly arranged at the bottom of the sample mold, and a rotating disc is rotationally arranged at the bottom of the bottom plate; a driving gear and a power source for driving the driving gear to rotate are arranged at the bottom of the pressing plate, and gear teeth meshed with the driving gear are arranged in the circumferential direction of the rotating disc. According to the sample preparation device disclosed by the utility model, splitting and grouting integration can be realized, so that a grouting structural surface sample can be quickly prepared; the power source drives the driving gear to rotate and drives the turntable to rotate, so that the rotating angle of the cutter can be accurately controlled, a sample does not need to be manually rotated, time and labor are saved, and the experiment precision and the result reliability are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to rock mechanics technical field, concretely relates to a kind of rock mass structure plane sample preparation device of splitting grouting integration BACKGROUND

[0002] In geotechnical engineering, the mechanical properties of the original rock structure surface have a decisive influence on the overall stability of the rock mass. As the weakest link in the rock mass, the structure surface determines the strength, deformation characteristics and failure mode of the rock mass, and is a key factor in the stability of the rock mass. In water conservancy, mining and tunnel engineering construction, complex geological structure and the instability of the structure surface often become the main reason for engineering instability, which seriously threatens construction safety and engineering durability. Therefore, it is particularly important to study the mechanical properties of the structure surface and reinforce it through effective means.

[0003] Grouting reinforcement is a common method of reinforcing the structure surface, which improves the strength of the structure surface by filling grout into the rock fissure, thereby improving the overall stability of the rock mass. However, in current experimental research, there are many limitations in the method of preparing grouting structure surface samples. The traditional sample preparation process usually includes splitting the rock sample, transferring the split sample to the grouting area and grouting the fissure. This process has many steps, is time-consuming and labor-intensive, and multiple transfers of the sample not only increase the complexity of the operation, but also easily cause damage to the sample, affecting the accuracy of the experiment and the reliability of the results. In addition, during the traditional splitting process, the splitting angle is usually adjusted manually, such as Chinese patent CN202410093448.6, which inevitably introduces human error into the test.

[0004] To overcome the above problems, it is urgent to develop an integrated, efficient and easy-to-operate sample preparation device to quickly prepare grouting structure surface samples. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of rock mass structure plane sample preparation device of splitting grouting integration, to solve the problems of difficult to quickly prepare grouting structure surface sample in prior art and manual adjustment to adjust splitting angle is prone to human error.

[0006] The application discloses a rock mass structure surface sample preparation device integrating splitting and grouting, which comprises a splitting unit, a transfer unit and a sample mold.

[0007] Preferably, the splitting unit further comprises four stoppers detachably fixed to the bottom plate.

[0008] Preferably, the top surface of the rotating disc is provided with an annular sliding table, the sliding table is embedded in an annular groove arranged on the pressing plate, and the rotating disc is rotationally connected with the pressing plate through the sliding table and the annular groove.

[0009] Preferably, the inner surface of the side plate is provided with a vertical sliding groove, and the two ends of the pressing plate are provided with matched pressing plate sliding blocks which are slidingly matched with the vertical sliding groove; the pressing plate is fixedly connected with the two side plates through the pressing plate sliding blocks and the side plate sliding grooves.

[0010] Preferably, the lower surface of the rotating disc is provided with an angle sensor, and a controller is connected with the angle sensor and a display screen arranged on the left side plate.

[0011] Preferably, the sliding rail is provided with a horizontal sliding groove, and the track on the upper surface of the bottom plate is a bottom plate groove which is communicated with the horizontal sliding groove.

[0012] Preferably, the sliding member is two strip-shaped mold sliding blocks which are slidingly matched with corresponding horizontal sliding grooves and corresponding bottom plate grooves.

[0013] Preferably, the sample mold is a cuboid structure without an upper cover.

[0014] Preferably, the device further comprises a grouting unit arranged on one side of the baffle, and the grouting unit comprises a slurry storage bottle for storing slurry, a grouting pipe, a valve and a pneumatic pump.

[0015] Preferably, the inner surface of the baffle is fixedly provided with a rubber ring.

[0016] The sample preparation device of the utility model, in the time of using, first put the test sample in the test sample mold, then push the test sample mold into the center of the bottom plate of the splitting unit through the transfer unit, slide the pressing plate on the two side plates, start to apply load to the pressure head, and carry out splitting; through the track and the slide rail, the test sample mold is moved to the baffle.

[0017] Further, the splitting unit further comprises four stoppers detachably fixed with the bottom plate, after the test sample mold is pushed into the center of the bottom plate, the four stoppers are fixed on the bottom plate and located on the front and rear sides of the test sample mold to limit the test sample mold, so that the grinding tool is prevented from moving during the splitting of the test sample, the accuracy of the splitting angle is further ensured, and after the splitting is completed, the four stoppers are removed to release the limitation on the test sample mold.

[0018] Further, the rotating disc is rotatably connected with the pressing plate through the slide table and the annular groove, so that the rotating disc is more stable during rotation.

[0019] Further, the lower surface of the rotating disc is provided with an angle sensor, and the controller is connected with the angle sensor and a display screen located on the surface of the left side plate, so that the rotation angle of the rotating disc can be measured and displayed on the display screen, and the measurement is more intuitive.

[0020] Further, after the test sample mold is moved to the baffle, grouting is started, the pneumatic pump is started, the valve is opened, the slurry flows out from the slurry storage bottle, passes through the grouting pipe and the valve in sequence, and is injected into the fracture of the test sample in the test sample mold; after the slurry is solidified, the grouting structure surface test sample can be obtained. The other side of the baffle is the grouting unit, and the splitting and grouting integration can be realized to quickly prepare the grouting structure surface test sample. By adjusting the power of the pneumatic pump, the flow rate of the slurry entering the test sample can be conveniently and accurately controlled, the slurry is in a uniform state in the test sample fracture, and the mechanical properties of the test sample after solidification are stable.

[0021] Further, a rubber ring is arranged on the baffle, when the test sample mold moves to the baffle along the slide rail, the rubber ring can provide effective buffering effect, and the test sample is prevented from being greatly shaken or secondarily broken due to impact. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a splitting and grouting integrated rock mass structure surface sample preparation device structural schematic view of the utility model.

[0023] Figure 2 It is a splitting unit front view structural schematic view of the utility model, and the cutter, the power source and the driving gear are not shown in the figure.

[0024] Figure 3 This is a bottom view of the splitting unit pressure plate structure of this utility model.

[0025] Figure 4 This is a schematic diagram of the left side plate structure of the splitting unit of this utility model.

[0026] Figure 5 This is a schematic diagram of the end structure of the slide rail of this utility model.

[0027] Figure 6 This is a schematic diagram of the sample mold structure of this utility model.

[0028] The components are as follows: 1. Base plate; 2. Side plate; 3. Pressure plate; 4. Pressure head; 5. Turntable; 6. Base plate groove; 8. Stop block; 9. Clamping bolt; 10. Pressure plate slider; 11. Through bolt; 12. Slide rail; 13. Baffle; 14. Slurry storage bottle; 15. Grouting pipe; 16. Pneumatic pump; 17. Valve; 18. Annular groove; 19. Vertical slide groove; 20. Control line; 21. Fixed blade; 22. Angle sensor; 23. Gear teeth; 24. Drive gear; 25. Power source; 26. Sample mold; 27. Strip mold slider. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] An embodiment of a rock mass structural surface sample preparation device integrating splitting grouting, such as... Figures 1-6 As shown, the system includes a splitting unit, a transfer unit, a grouting unit located on one side of the transfer unit, and a sample mold 26. The splitting unit includes a base plate 1, two side plates 2 connected to the base plate by bolts 11, a pressure plate 3 vertically slidably connected to the side plates, a pressure head 4 fixed on the pressure plate, and four stops 8 detachably fixed to the base plate by clamping bolts 9. Specifically, the inner surface of the side plates has vertical grooves 19, and the two ends of the pressure plate are provided with matching pressure plate sliders 10 that slide in cooperation with the vertical grooves. In this embodiment, the vertical grooves 19 are U-shaped grooves, and the pressure plate sliders 10 are U-shaped pressure plate sliders. The pressure plate is fixedly connected to the two side plates through the pressure plate sliders 10 and the side plate grooves.

[0031] The transfer unit includes a slide rail 12 welded to the base plate 1 of the splitting unit at its inner end, a baffle 13 welded to the slide rail at its outer end to restrict the movement of the sample mold 26, and a track connected to the slide rail on the upper surface of the base plate. The slide rail has a horizontal groove, and the track on the upper surface of the base plate is a base plate groove 6 that communicates with the horizontal groove. A fixing rubber ring (not shown in the figure) is pasted on the inner surface of the baffle. When the sample mold 26 moves along the slide rail to the baffle, the rubber ring can provide an effective buffering effect to prevent the sample from shaking or breaking secondary due to impact.

[0032] The bottom of the sample mold 26 is fixedly connected with a sliding member in sliding fit with the sliding rail. In this embodiment, the sliding member is two strip-shaped mold sliding blocks 27 which are in sliding fit with the corresponding horizontal sliding slot and the corresponding bottom plate groove 6. The bottom of the bottom plate is rotatably provided with a rotating disc 5, the bottom of the rotating disc is vertically fixedly provided with a cutter 21 which passes through the center of the bottom of the rotating disc, the bottom of the pressing plate is provided with a driving gear 24 and a power source 25 for driving the driving gear to rotate, and the rotating disc is circumferentially provided with gear teeth 23 which are in mesh with the driving gear. In this embodiment, the top surface of the rotating disc is provided with an annular sliding table which is embedded in an annular groove 18 provided on the pressing plate, and the rotating disc is rotatably connected with the pressing plate through the sliding table and the annular groove, so that the rotating disc is more stable during rotation. The lower surface of the rotating disc is provided with an angle sensor 22, the controller is connected with the angle sensor 22 and a display screen located on the surface of the left side plate, the power source 25 is a servo motor, and the power source 25 and the angle sensor 22 are connected with the controller through a control line 20. The sample mold is a cuboid structure without an upper cover.

[0033] The preferred grouting unit of this embodiment is located on one side of the baffle, and the grouting unit comprises a grout storage bottle 14 for storing grout, a grouting pipe 15, a valve 17 and a pneumatic pump 16.

[0034] In use, the sample is first placed in the sample mold, then the sample mold is pushed into the center of the bottom plate of the splitting unit through the transfer unit, and then the pressing plate is slidably connected to the two side plates to start applying load to the pressure head for splitting. The sample mold is moved to the baffle through the track and the sliding rail. The rotation angle of the cutter is accurately controlled by rotating the rotating disc provided at the bottom of the bottom plate, the driving gear at the bottom of the pressing plate, the power source and the gear teeth provided on the circumference of the rotating disc. Specifically, the power source drives the driving gear to rotate, which in turn drives the rotating disc to rotate, thereby accurately controlling the rotation angle of the cutter, without the need for manual rotation of the sample, saving time and effort and ensuring the accuracy of the experiment and the reliability of the results. After the sample mold is pushed into the center of the bottom plate, four stop blocks are fixed to the bottom plate to limit the sample mold from moving during the splitting of the sample, thereby further ensuring the accuracy of the splitting angle. After splitting is completed, the four stop blocks are removed to release the limitation of the sample mold. The lower surface of the rotating disc is provided with an angle sensor, and the controller is connected with the angle sensor and a display screen located on the surface of the left side plate, so that the rotation angle of the rotating disc can be measured and displayed on the display screen, which is more intuitive.

[0035] After the sample mold moves to the baffle, grouting is started, the pneumatic pump is started, the valve is opened, the slurry flows out from the slurry storage bottle, passes through the grouting pipe and the valve in turn, and is injected into the fracture of the sample in the sample mold; after the slurry is solidified, the grouting structure surface sample can be obtained. The other side of the baffle is the grouting unit, and the splitting grouting integration can be realized to quickly prepare the grouting structure surface sample. By adjusting the power of the pneumatic pump, the flow rate of the slurry into the sample can be conveniently and accurately controlled, the slurry is in a uniform state in the fracture of the sample, and the mechanical properties of the sample after solidification are stable.

[0036] The above process describes the basic principle, main characteristics and advantages of the present application. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments all belong to the protection scope of the technical scheme of the present application.

Claims

1. A rock mass structural surface sample preparation device integrating splitting and grouting, characterized in that: The application relates to a sample splitting and transferring device, which comprises a splitting unit, a transferring unit and a sample mold, wherein the splitting unit comprises a bottom plate, two side plates connected with the bottom plate, a pressing plate vertically slidably connected with the side plates and a pressing head fixed on the pressing plate; the transferring unit comprises a slide rail connected with the bottom plate of the splitting unit at an inner end, a baffle connected with the slide rail at an outer end and used for limiting the movement of the sample mold, a track arranged on the upper surface of the bottom plate and connected with the slide rail, a sliding piece fixedly arranged at the bottom of the sample mold and slidably connected with the slide rail, a rotating disc arranged at the bottom of the bottom plate, a cutter vertically fixed at the bottom of the rotating disc and passing through the center of the bottom of the rotating disc, a driving gear arranged at the bottom of the pressing plate and a power source used for driving the driving gear to rotate, and the rotating disc is provided with gear teeth which are engaged with the driving gear.

2. The integrated rock mass structure plane sample device for splitting and grouting according to claim 1, characterized in that: The splitting unit further comprises four stop blocks which are detachably fixed with the bottom plate.

3. The integrated rock mass structure plane sample device for splitting and grouting according to claim 1, characterized in that: The top surface of the rotating disc is provided with an annular sliding table which is embedded in an annular groove arranged on the pressing plate, and the rotating disc is rotationally connected with the pressing plate through the sliding table and the annular groove.

4. The integrated rock mass discontinuity sample preparation device for wedge splitting and grouting of claim 1, wherein: The inner surface of the side plate is provided with a vertical sliding groove, and the two ends of the pressing plate are provided with matched pressing plate sliding blocks which are slidably connected with the vertical sliding groove, and the pressing plate is fixedly connected with the two side plates through the pressing plate sliding blocks and the side plate sliding grooves.

5. The integrated rock mass discontinuity sample preparation device for wedge splitting and grouting of claim 1, wherein: The lower surface of the rotating disc is provided with an angle sensor, and a controller is connected with the angle sensor and a display screen arranged on the left side plate.

6. The integrated rock mass discontinuity sample device for wedge splitting and grouting according to claim 1, characterized in that: The slide rail is provided with a horizontal sliding groove, and the track on the upper surface of the bottom plate is a bottom plate groove which is communicated with the horizontal sliding groove.

7. The integrated rock mass discontinuity specimen device of claim 6, wherein: The sliding piece is two strip-shaped mold sliding blocks which are slidably connected with corresponding horizontal sliding grooves and corresponding bottom plate grooves.

8. The integrated rock mass discontinuity specimen device of claim 1, wherein: The sample mold is a cuboid structure without an upper cover.

9. The integrated rock mass discontinuity specimen device of claim 1, wherein: The device further comprises a grouting unit arranged on one side of the baffle, and the grouting unit comprises a grout storage bottle used for storing grout, a grouting pipe, a valve and a pneumatic pump.

10. The integrated rock mass discontinuity specimen preparation device for wedge splitting and grouting according to any one of claims 1-9, characterized in that: The inner surface of the baffle is fixedly provided with a rubber ring.

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