Indoor rockfall motion test device and rammed earth structure

Abstract

The present invention relates to the technical field of rockfall motion tests, in particular to an indoor rockfall motion test device and a rammed earth structure. The indoor rockfall motion test device comprises: a bearing component, comprising a support, a mounting crossbar provided on the support and a release assembly provided on the mounting crossbar; a throwing component, comprising a rockfall start section provided on the support, a rock throwing section provided on the support, a dip angle adjustment member provided on the rock throwing section, a fallen rock stopping and deposition section provided on the support, and a fallen rock interception plate provided on the support; and high-speed cameras, wherein there are two high-speed cameras, one high-speed camera is provided on the mounting crossbar, and the other high-speed camera is provided on one side of the throwing component for photographing the throwing component. In the present invention, the slope shape can be adjusted at will, different plates can be replaced for laying, and filling materials can be replaced, so as to simulate different throwing adjustments, simulate soft and hard bedrocks with different strengths, and simulate different collapse deposition areas.

Description

A rolling stone motion indoor test device and rammed earth structure Technical Field

[0001] The invention relates to the technical field of rolling stone motion testing, in particular to a rolling stone motion indoor testing device and a rammed earth structure. Background Art

[0002] With the rapid and high-quality development of my country's economy, the construction of highways, water conservancy projects, bridges, tunnels, and housing projects is increasing rapidly. The area covered by these projects and the number of steep slopes have also increased accordingly. The number of dangerous rock masses on slopes has increased significantly, posing a serious threat to people's lives and property, as well as the safety of construction projects. Rockfall disasters in mountainous areas, a major geological disaster in southwestern my country, are characterized by widespread distribution, small scale, high randomness, and high concealment. Therefore, the effective prevention and control of rockfall disasters has become a pressing issue.

[0003] The characteristics and patterns of rockfall motion are primarily studied through field tests, indoor tests, and numerical simulations. Field tests are time-consuming and costly, and due to the complex and diverse conditions of the environment and terrain, indoor physical simulations are often used. However, currently constructed indoor rockfall test equipment is expensive, cumbersome, and some are relatively rudimentary. The slopes are paved with a relatively simple material, and the test slopes constructed using traditional brackets or jacks have a single slope shape, which cannot reflect the full range of rockfall motion patterns. Furthermore, adjusting the soil at the resting position of the test equipment requires continuous refilling and watering, which relies on manual operation.

[0004] Summary of the Invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0006] In view of the above-mentioned problems of single slope shape and single paving material, the present invention is proposed.

[0007] Therefore, the object of the present invention is to provide a kind of indoor test device of rolling stone motion.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a rolling stone motion indoor test device, comprising a bearing component, including a bracket, a mounting cross bar arranged on the bracket, and a release assembly arranged on the mounting cross bar; a dropping component, comprising a rolling stone starting section arranged on the bracket, a wheeled fence climbing ladder arranged on one side of the rolling stone starting section, a rolling stone dropping section arranged on the bracket, an inclination adjustment member arranged on the rolling stone dropping section, a rolling stone stopping section arranged on the bracket, and a rolling stone intercepting plate arranged on the bracket; two high-speed cameras, one of which is arranged on the mounting cross bar and the other is arranged on one side of the dropping component, to shoot the dropping component.

[0009] As a preferred solution of the indoor test device for rolling stone motion of the present invention, the rolling stone starting section is installed below the release assembly, and the rolling stone starting section includes two slopes, and the height and angle between the two slopes are adjustable.

[0010] As a preferred solution of the indoor test device for rolling stone motion described in the present invention, the rolling stone dropping section includes a stainless steel plate arranged on a bracket, a concrete plate arranged on the stainless steel plate, the stainless steel plate is connected to an inclination adjustment member, and the inclination adjustment member is movably connected to the bracket; the rolling stone accumulation section includes a stainless steel box and a filling material filled in the stainless steel box, and the filling material can be sand, gravel, soil, etc.

[0011] Beneficial effects of the indoor test device for rolling stone motion described in the present invention: the rolling stone starting section of the present invention includes a steel frame and a paving plate, and the steel frame is fixed to the bracket to keep the slopes at both ends horizontal. The length and inclination angle of the rolling stone starting section can be designed by adjusting the steel frame, the bracket size and the splicing position, creating different dynamic conditions for the rolling stone motion. Compared with previous indoor tests of rolling stone motion, it better restores the on-site test environment. The rolling stone throwing section of the present invention is composed of a stainless steel plate and a concrete plate, which is erected above the throwing section inclination adjustment part. The throwing section inclination angle can be adjusted by the throwing section inclination adjustment part. , precast concrete slabs of different strengths are arranged on steel plates, which can effectively simulate soft and hard bedrocks of different strengths. The collision and bouncing process of the rolling stones is analyzed in combination with monitoring equipment to obtain the collision recovery coefficient. The rolling stone stopping section of the present invention is made of stainless steel plates, and an active valve is installed at the end of the side to realize the replacement of filling materials with different moisture contents and particle size ratios to simulate materials in different collapse accumulation areas. The slope shape of the present invention can be adjusted arbitrarily and different plate paving and filling materials can be replaced to simulate different drop adjustments, simulate soft and hard bedrocks of different strengths, and simulate different collapse accumulation areas.

[0012] In actual use, there is still the problem of inconvenience in adjusting the soil in the rolling stone accumulation section.

[0013] In order to solve the above technical problems, the present invention also provides the following technical solutions: a rammed earth structure, used for the above-mentioned indoor test device for rolling stone motion, further comprising: a storage component, including a mounting frame arranged on the bracket, and a accommodating box body arranged on the mounting frame; a mounting component, including a lifting assembly arranged on the mounting frame, a locking assembly arranged on the lifting assembly, and a linkage assembly arranged on the locking assembly; a spreading component, including a mounting assembly arranged on the lifting assembly, a spreading component arranged on the mounting assembly, and a driving assembly arranged on the mounting assembly; a rammed earth component, including a sprinkler assembly arranged on the sprinkler assembly, and a closing assembly arranged on the sprinkler assembly.

[0014] As a preferred solution of the rammed earth structure of the present invention, wherein: the lifting assembly includes a limiting tooth arranged on the mounting frame, and a sliding sleeve arranged on the mounting frame; the locking assembly includes a limiting sleeve arranged on the sliding sleeve, a first elastic member arranged on the limiting sleeve, and a movable tooth arranged in the limiting sleeve; the linkage assembly includes a receiving groove opened in the sliding sleeve, a first cylinder arranged in the receiving groove, a connecting plate arranged on the output shaft of the first cylinder, and a connecting rod arranged on the movable tooth.

[0015] As a preferred solution of the rammed earth structure of the present invention, wherein: the sliding sleeve is slidably connected to the mounting frame, the sliding sleeve is adapted to the limiting teeth, the limiting sleeve is adapted to the movable teeth, the movable teeth and the limiting teeth are clamped with each other, the two ends of the first elastic member are respectively fixedly connected to the limiting sleeve and the movable teeth, one end of the connecting rod is fixedly connected to the movable teeth, and the other end extends out of the limiting sleeve and is fixedly connected to the connecting plate, and the connecting rod is slidably connected to the limiting sleeve.

[0016] As a preferred solution of the rammed earth structure of the present invention, the mounting assembly includes an extended mounting plate arranged on the sliding sleeve, a rotating wheel arranged on the extended mounting plate, and a linkage tooth arranged on the rotating wheel; two rotating wheels are provided, both of which are provided with linkage teeth and are engaged with each other.

[0017] As a preferred solution of the rammed earth structure of the present invention, the spreading assembly includes a clamping head arranged on the rotating wheel, an extension plate arranged on the rotating wheel, a clamping roller arranged on the extension plate, a limiting plate arranged on the clamping roller, and a second elastic member arranged on the extension plate.

[0018] As a preferred solution of the rammed earth structure of the present invention, the driving assembly includes a second cylinder arranged on the sliding sleeve, and a push rod arranged on the output shaft of the second cylinder; the push rod is adapted to the clamping head, and the two ends of the second elastic member are respectively fixedly connected to the two extension plates.

[0019] As a preferred solution of the rammed earth structure of the present invention, the sprinkler assembly includes a main mounting plate arranged between the spreading assemblies, a through hole opened on the main mounting plate, a water storage tank arranged on the main mounting plate, and a fixing column arranged on the main mounting plate; the closing assembly includes a rammed earth plate arranged under the main mounting plate, a sealing protrusion arranged on the rammed earth plate, and a mounting bolt arranged on the rammed earth plate.

[0020] The beneficial effects of the rammed earth structure described in the present invention are as follows: by providing a spreading component and a rammed earth component, the present invention can install the sprinkler assembly above the containing box body through the spreading component during use, and soil or sand and gravel are arranged in the containing box body. When precipitation is needed in dry soil to simulate wet soil, water can be injected into the sprinkler assembly to simulate rainfall. When the soil needs to be compacted, the closing component is tightly inserted into the sprinkler assembly and fixed by installing bolts to close the sprinkler port of the sprinkler assembly. At this time, water can be injected to adjust the weight of the rammed earth component. The spreading component is opened to release the fixation of the rammed earth component. At this time, the rammed earth component falls under the action of gravity and hits the soil for compaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0022] Figure 1 is an overall schematic diagram of the indoor test device for rolling stone motion.

[0023] FIG2 is an overall schematic diagram of the indoor test device for rolling stone motion from another perspective.

[0024] FIG3 is a schematic diagram of the release assembly of the indoor test apparatus for rolling stone motion.

[0025] FIG4 is a schematic structural diagram of the rolling stone starting section of the rolling stone motion indoor test device.

[0026] FIG5 is a structural diagram of the stone throwing section of the stone rolling motion indoor test device.

[0027] FIG6 is a schematic structural diagram of the rock rolling stop section of the rock rolling motion indoor test device.

[0028] Figure 7 is an overall schematic diagram of the rammed earth structure.

[0029] FIG8 is an overall schematic diagram of the rammed earth structure without the sprinkler assembly.

[0030] FIG9 is an enlarged view of point A in FIG8 .

[0031] FIG10 is a schematic cross-sectional view of a locking assembly of a rammed earth structure.

[0032] FIG11 is an enlarged view of point B in FIG8 .

[0033] FIG12 is a cross-sectional structural diagram of a sprinkler assembly of a rammed earth structure. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0037] Example 1

[0038] 1 to 6 , which are a first embodiment of the present invention, provide a rock rolling indoor test device, comprising a bearing component 100, a bracket 101, a mounting crossbar 102 disposed on the bracket 101, and a release assembly 103 disposed on the mounting crossbar 102; a dropping component 200, comprising a rock rolling starting section 201 disposed on the bracket 101, a wheeled fence climbing ladder 202 disposed on one side of the rock rolling starting section 201, a rock rolling dropping section 203 disposed on the bracket 101, an angle adjustment member 204 disposed on the rock rolling dropping section 203, a rock rolling stopping section 205 disposed on the bracket 101, and a rock rolling interception plate 206 disposed on the bracket 101; and two high-speed cameras 300, one of which is disposed on the mounting crossbar 102 and the other is disposed on one side of the dropping component 200 to photograph the dropping component 200.

[0039] Specifically, the release assembly 103 includes a lifting member 103a provided on the bracket 101, a bearing member 103b provided on the lifting member 103a, and a release member 103c provided on the bearing member 103b. The lifting member 103a can be used as long as it can play the lifting and locking functions. The bearing member 103b includes a cross bar movably connected to the lifting member 103a, and a U-shaped plate structure rotatably connected to the cross bar. The bearing member 103b can adjust the height and angle at will. The release member 103c is used to block the rolling stone. Opening the release member 103c can release the rolling stone. A rolling stone is installed under the release assembly 103. The starting section 201 and the slopes at both ends of the rolling stone starting section 201 are used to provide the initial dynamic conditions before the rolling stone moves to the air. The rolling stone throwing section 203 is installed below the rolling stone starting section 201 to simulate rocks in a natural environment. The rolling stone accumulation section 205 is installed under the air surface and is filled with sand or soil with a certain moisture content and particle size to simulate the environment of the collapsed rolling stone accumulation area under natural conditions. An inclined stainless steel plate 203a is installed at the end of the rolling stone accumulation section 205. The inclination direction is opposite to the direction of the rolling stone movement, which is used to intercept large-energy rolling stones and protect the safety of the test equipment at the end of the test equipment and passers-by.

[0040] Furthermore, the rolling stone starting section 201 is installed below the release component 103. The rolling stone starting section 201 includes two slope sections, and the height and angle of the two slope sections are adjustable. The rolling stone starting section 201 includes a steel frame 201a and a paving plate 201b. The U-shaped plate structure in the release component 103 is fixed to the cross bar by bolts and nuts. The rolling stone release angle can be adjusted by rotating the cross bar. The initial height of the rolling stone can be controlled by adjusting the tightness of the fasteners in the lifting component 103a. Before loading the rolling stone, the release component 103c is placed in the release component 103. When releasing the rolling stone, the release component 103c is quickly pulled out. The rolling stone falls freely onto the rolling stone starting section 201 due to its own gravity, and its movement can be regarded as a free fall motion.

[0041] Furthermore, the rolling stone throwing section 203 includes a stainless steel plate 203a provided on the bracket 101, a concrete plate 203b provided on the stainless steel plate 203a, and the stainless steel plate 203a and the inclination adjustment member 204 are connected. The inclination adjustment member 204 is movably connected to the bracket 101, and baffles are installed on both sides of the rolling stone starting section 201 to ensure the safety of the surrounding test and passing personnel. The rolling stone throwing section 203 is assembled from stainless steel plates 203a, concrete plates 203b or natural stone plates. The inclination angle of the rolling stone throwing section 203 is controlled by the throwing section inclination adjustment member 204. The surface plate paving of the device is fixed to the steel plate with dovetail nails. After the rolling stone falls from the rolling stone starting section 201, it collides with the rolling stone throwing section 203. The rolling stone stopping section 205 includes a stainless steel box 205a and a filling material 205b, which is spliced ​​into a box shape by stainless steel plates 203a. The end of the long side of the device is open, and a slot is glued on both sides of the opening, and a baffle is inserted in between to facilitate the replacement of the filling material 205b in the device.

[0042] Operation process: A black and white grid screen of a certain size can be set up in the cross-sectional direction of the indoor test equipment for the rolling stone motion mode and placed behind the device to analyze the moving coordinates of the rolling stone specimen in the captured image. The height and inclination of the rolling stone starting section 201 can be controlled by adjusting the position and inclination of the steel frame 201a to create different dynamic conditions for the rolling stone motion. By replacing the material, the sliding and rolling friction coefficients of the rolling stone on different slopes can be calculated. In addition, in order to avoid the deviation of the movement direction of the rolling stone after contacting the slope of the starting section, which may pose a threat to passers-by or surrounding facilities, semi-tempered glass is added on both sides of the sliding plate 201c of the starting section. The rolling stone dropping section 203 is composed of a stainless steel plate 203a and a plate. According to actual needs, a concrete plate 203b of corresponding strength can be prefabricated or a natural stone plate can be cut, spliced ​​according to a certain size and paved on the steel plate (thickness not less than 3 cm). Due to the large impact force caused by the rolling stone falling on the air surface, the inclination of the device is adjusted. When the angle is steeper at 60-80 degrees, steel nails and stone adhesive are needed to fix the plate to prevent it from falling after being subjected to strong impact and vibration. The inclination adjusting member 204 is installed below the rolling stone throwing section 203. The device uses a rotating fastener to connect the two brackets 101 while ensuring the relative rotation of the two. The rolling stone stopping section 205 is arranged horizontally above the bottom bracket 101. The device consists of a composite plate, sand and gravel and a movable valve. The composite plate is spliced ​​into a rectangular box with a depth of not less than 5 cm. An opening is opened at the end of the side. Aluminum U-shaped chutes are installed on both sides of the opening. Active valves are prepared according to the size of the opening. The valve is closed and sand or soil is mixed in a certain proportion and filled into the box for testing. After the rolling stone hits the air panel, it comes into contact with the rolling stone stopping section 205. The energy is quickly dissipated and the rolling stone specimen gradually changes from a rolling state to a stationary state. The material is replaced during the control test and the movable valve can be opened to improve the test efficiency.

[0043] The test process is as follows: the indoor test equipment for the rolling stone motion mode is assembled, a prefabricated rolling stone sample is placed in the release assembly 103, the high-speed camera 300 is set up and adjusted, the camera is turned on and images are collected, and the release member 103c is quickly pulled out. The rolling stone performs free fall motion, rolls or slides after contacting the rolling stone starting section 201, falls downward after leaving the starting section, and performs oblique throwing motion until it collides with the rolling stone throwing section 203. After the collision, the rolling stone continues to move in a bouncing, rolling or sliding posture, stops after contacting the bottom slope panel and rolling a certain distance, and the data acquisition equipment is turned off. The rolling stone motion process was analyzed using commercial motion image analysis software. Using a distance in the image as a fixed scale, the distance between key frames of the object's motion was determined. The distance was then divided by time to obtain the speed of the rolling stone specimen during this period. The motion parameters of the rolling stone specimen under four motion postures were thus calculated. The rolling stone's motion speed was calculated based on Newtonian classical mechanics. The normal and tangential restitution coefficients of the rolling stone collision were obtained from the speed before and after the collision. Similarly, the motion parameters of the rolling stone in the rolling stone starting section 201 and the rolling stone stopping section 205 were used to calculate the sliding friction coefficient and rolling friction coefficient of the rolling stone specimen. The motion characteristic parameter calculation formula is as follows:

[0044] Where vi is the impact velocity before collision, vb is the rebound velocity after collision, α is the slope angle, vit is the tangential impact angle, vbt is the tangential rebound velocity, vin is the normal impact angle, vbn is the normal rebound velocity, t is the time, Rt is the tangential restitution coefficient, Rn is the normal restitution coefficient, and R is the collision restitution coefficient.

[0045] Where v0 is the velocity at the moment, v is the velocity at the next moment, B is a constant related to the mass and shape of the falling rock, R is the equivalent radius, μr is the rolling friction coefficient, βr is the rolling friction angle, s is the distance traveled by the rolling segment of the rolling rock, f is the sliding friction coefficient, and H is the sliding height difference.

[0046] Example 2

[0047] 7 to 12 , a second embodiment of the present invention is shown, which differs from the previous embodiment in that a rammed earth structure is provided for the above-mentioned indoor test device for rolling stone motion: comprising a storage component 400, comprising a mounting frame 401 arranged on the bracket 101, and a accommodating box body 402 arranged on the mounting frame 401; a mounting component 500, comprising a lifting assembly 501 arranged on the mounting frame 401, a locking assembly 502 arranged on the lifting assembly 501, and a linkage assembly 503 arranged on the locking assembly 502; a spreading component 600, comprising a mounting assembly 601 arranged on the lifting assembly 501, a spreading assembly 602 arranged on the mounting assembly 601, and a driving assembly 603 arranged on the mounting assembly 601; and a rammed earth component 700, comprising a sprinkler assembly 701 arranged on the sprinkler assembly 602, and a sealing assembly 702 arranged on the sprinkler assembly 701.

[0048] Specifically, the accumulation component 400 is used to carry the rolling stones, the mounting frame 401 is used to install and fix the containing box body 402, and the containing box body 402 is filled with sand or soil. The lifting assembly 501 is used to control the installation height of the rammed earth component 700, and the spreading component 600 can fix the rammed earth component 700 and release the rammed earth component 700 when ramming is required. The rammed earth component 700 can also be used for sprinkling water, thereby changing the moisture content of the sand or soil in the containing box body 402.

[0049] Furthermore, the lifting assembly 501 includes a limiting tooth 501a provided on the mounting frame 401, and a sliding sleeve 501b provided on the mounting frame 401; the locking assembly 502 includes a limiting sleeve 502a provided on the sliding sleeve 501b, a first elastic member 502b provided on the limiting sleeve 502a, and a movable tooth 502c provided in the limiting sleeve 502a; the linkage assembly 503 includes a receiving groove 503a provided in the sliding sleeve 501b, a first cylinder 503b provided in the receiving groove 503a, a connecting plate 503c provided on the output shaft of the first cylinder 503b, and a connecting rod 503d provided on the movable tooth 502c, the limiting tooth 501a is fixedly provided with a plurality of sliding teeth. The movable sleeve 501b can slide up and down along the mounting frame 401, and the limiting tooth 501a will not affect the sliding sleeve 501b during sliding. The first elastic member 502b can push out the movable tooth 502c set in the limiting sleeve 502a. After being pushed out a part, the movable tooth 502c can be stuck on the limiting tooth 501a, thereby fixing the sliding sleeve 501b. A sliding hole is opened on the side of the limiting sleeve 502a, and the connecting rod 503d slides with the sliding hole. The first cylinder 503b can control the movement of the connecting rod 503d through the connecting rod 503d. When the connecting rod 503d and the first cylinder 503b are pushed out, the movable tooth 502c is pulled back into the limiting sleeve 502a. At this time, the sliding sleeve 501b is unlocked, and the sliding sleeve 501b can slide up and down to adjust its position.

[0050] Furthermore, the sliding sleeve 501b is slidably connected to the mounting bracket 401, the sliding sleeve 501b is adapted to the limiting tooth 501a, the limiting sleeve 502a is adapted to the movable tooth 502c, the movable tooth 502c and the limiting tooth 501a are clamped with each other, the two ends of the first elastic member 502b are respectively fixedly connected to the limiting sleeve 502a and the movable tooth 502c, one end of the connecting rod 503d is fixedly connected to the movable tooth 502c, and the other end extends out of the limiting sleeve 502a and is fixedly connected to the connecting plate 503c, the connecting rod 503d is slidably connected to the limiting sleeve 502a, and the limiting sleeve 502a is arranged on the outside of the mounting bracket 401.

[0051] The rest of the structure is the same as that of Example 1.

[0052] Operation process: When in use, first move the movable teeth 502c to the inside of the limiting sleeve 502a through each first cylinder 503b, then move each sliding sleeve 501b to the desired position, control each first cylinder 503b to retract, so that each movable tooth 502c extends. After the movable teeth 502c are extended, a part of them is still located in the limiting sleeve 502a. At this time, the movable teeth 502c can be stuck with the limiting teeth 501a to prevent the movable sleeve from falling, and the rammed earth component 700 can be installed on the mounting frame 401 through the sliding sleeve 501b.

[0053] Example 3

[0054] 8 to 12 , a third embodiment of the present invention is shown, which differs from the above embodiments in that it further includes a mounting assembly 601 comprising an extended mounting plate 601a disposed on the sliding sleeve 501b, a rotating wheel 601b disposed on the extended mounting plate 601a, and a linkage tooth 601c disposed on the rotating wheel 601b; two rotating wheels 601b are provided, both of which are provided with linkage teeth 601c and mesh with each other.

[0055] Specifically, the extended mounting plate 601a is disposed on the inner side of the mounting frame 401, the rotating wheel 601b is rotatably connected to the extended mounting plate 601a, and both rotating wheels 601b are provided with linkage teeth 601c, so that the two rotating wheels 601b can move synchronously.

[0056] Furthermore, the spreading assembly 602 includes a clamping head 602a arranged on the rotating wheel 601b, an extension plate 602b arranged on the rotating wheel 601b, a clamping roller 602c arranged on the extension plate 602b, a limiting plate 602d arranged on the clamping roller 602c, and a second elastic member 602e arranged on the extension plate 602b. The two ends of the second elastic member 602e push the extension plate 602b to both sides. At this time, the clamping rollers 602c move away from each other, the clamping heads 602a move closer to each other, and the limiting plate 602d is used to limit the installation position of the rammed earth component 700 to prevent the rammed earth component 700 from colliding with the spreading assembly 602 when it falls.

[0057] Furthermore, the driving assembly 603 includes a second cylinder 603a arranged on the sliding sleeve 501b, and a push rod 603b arranged on the output shaft of the second cylinder 603a; the push rod 603b is adapted to the clamping head 602a, and the two ends of the second elastic member 602e are respectively fixedly connected to the two extension plates 602b, and the push rod 603b can be inserted from the two clamping heads 602a, so that the two clamping heads 602a are moved away from each other. At this time, the two clamping rollers 602c approach each other and compress the second elastic member 602e.

[0058] Furthermore, the sprinkler assembly 701 includes a main mounting plate 701a disposed between the sprinkler assembly 602, a through hole 701b provided on the main mounting plate 701a, a water storage tank 701c provided on the main mounting plate 701a, and a fixing column 701d provided on the main mounting plate 701a; the closing assembly 702 includes a rammed earth plate 702a provided under the main mounting plate 701a, a sealing protrusion 702b provided on the rammed earth plate 702a, and a mounting bolt 702c provided on the rammed earth plate 702a, a through hole 701b provided on the main mounting plate 701a, and a fixing column 701d provided on the main mounting plate 701a. 701b is set below the water tank 701c. When there is water in the water tank 701c, it can sprinkle water downward to change the moisture content of the soil. When precipitation is not needed, the rammed earth plate 702a is inserted upward from the bottom, and each sealing protrusion 702b is inserted into each through hole 701b to close the through hole 701b. The rammed earth plate 702a is fixed to the main mounting plate 701a by the mounting bolt 702c. The main mounting plate 701a is placed on the scattering assembly 602 through each fixing column 701d. The top of the fixing column 701d is trapezoidal and is clamped on the clamping roller 602c.

[0059] The rest of the structure is the same as that of Example 2.

[0060] Operation process: When installing the main mounting plate 701a, align each fixing column 701d with each clamping roller 602c, and insert each fixing column 701d between the clamping rollers 602c from bottom to top. During the insertion, each second cylinder 603a is retracted to make the push rod 603b separate from the clamping head 602a, so that the fixing column 701d can be inserted. After the fixing column 701d passes through the clamping roller 602c, the second cylinder 603a pushes out the push rod 603b, and the push rod 603b is inserted between the clamping heads 602a, so that the rotating wheel 601b rotates, and the clamping rollers 602c approach each other and clamp the bottom of the fixing column 701d, thereby fixing the main mounting plate 701a. When watering is needed to simulate rainfall, water is poured into the water tank 701c and can be poured into the lower receiving box body 402 through the through hole 701b. Water. When tamping is required, first confirm that there is no water in the water tank 701c, then insert the ramming plate 702a from bottom to top on the main mounting plate 701a, and each mounting bolt 702c passes through the main mounting plate 701a and is fixed with a nut, and each sealing protrusion 702b is inserted into each through hole 701b for sealing. Each sealing protrusion 702b is made of deformable material such as rubber, and the sealing protrusion 702b is interference fit with the through hole 701b. After installation is completed, each through hole 701b of the second cylinder 603a is retracted. At this time, each clamping roller 602c moves away from each other, thereby loosening each fixing column 701d, and the main mounting plate 701a can fall freely to perform tamping. If the tamping force needs to be adjusted, water only needs to be added to the water tank 701c to increase the weight of the main mounting plate 701a.

[0061] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0062] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (i.e., those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0063] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A rolling stone motion indoor test device, characterized in that: include, The bearing component (100) comprises a bracket (101), a mounting crossbar (102) arranged on the bracket (101), and a release assembly (103) arranged on the mounting crossbar (102); The throwing component (200) comprises a stone rolling starting section (201) arranged on the support (101), a wheeled fence climbing ladder (202) arranged on one side of the stone rolling starting section (201), a stone rolling falling section (203) arranged on the support (101), an inclination adjustment member (204) arranged on the stone rolling falling section (203), a stone rolling stopping section (205) arranged on the support (101), and a stone rolling intercepting plate (206) arranged on the support (101); A high-speed camera (300), wherein two high-speed cameras (300) are provided, one of the high-speed cameras (300) is arranged on the mounting cross bar (102), and the other high-speed camera (300) is arranged on one side of the dropping component (200) to photograph the dropping component (200).

2. The indoor test device for rolling stone motion as claimed in claim 1, characterized in that: The rolling stone starting section (201) is installed below the release assembly (103), and the rolling stone starting section (201) comprises two sections of slope surfaces, and the height and angle of the two sections of slope surfaces are adjustable.

3. The indoor test device for rolling stone motion as claimed in claim 1, characterized in that: The stone throwing section (203) comprises a stainless steel plate (203a) arranged on a bracket (101), and a concrete plate (203b) arranged on the stainless steel plate (203a), wherein the stainless steel plate (203a) is connected to an inclination adjustment member (204), and the inclination adjustment member (204) is movably connected to the bracket (101).

4. A rammed earth structure, used for the indoor test device for rolling stone motion according to any one of claims 1 to 3, characterized in that: Also includes, The storage component (400) comprises a mounting frame (401) arranged on the support (101), and a receiving box body (402) arranged on the mounting frame (401); The mounting component (500) comprises a lifting component (501) arranged on the mounting frame (401), a locking component (502) arranged on the lifting component (501), and a linkage component (503) arranged on the locking component (502); A spreading component (600) comprises a mounting component (601) arranged on the lifting component (501), a spreading component (602) arranged on the mounting component (601), and a driving component (603) arranged on the mounting component (601); The rammed earth component (700) comprises a watering component (701) arranged on the spreading component (602) and a sealing component (702) arranged on the watering component (701).

5. The rammed earth structure according to claim 4, characterized in that: The lifting assembly (501) comprises a limiting tooth (501a) arranged on the mounting frame (401) and a sliding sleeve (501b) arranged on the mounting frame (401); The locking assembly (502) comprises a limiting sleeve (502a) arranged on the sliding sleeve (501b), a first elastic member (502b) arranged on the limiting sleeve (502a), and a movable tooth (502c) arranged in the limiting sleeve (502a); The linkage assembly (503) comprises a receiving groove (503a) provided in the sliding sleeve (501b), a first cylinder (503b) arranged in the receiving groove (503a), a connecting plate (503c) arranged on the output shaft of the first cylinder (503b), and a connecting rod (503d) arranged on the movable tooth (502c).

6. The rammed earth structure according to claim 5, characterized in that: The sliding sleeve (501b) is slidably connected to the mounting frame (401), the sliding sleeve (501b) is matched with the limiting tooth (501a), the limiting sleeve (502a) is matched with the movable tooth (502c), the movable tooth (502c) and the limiting tooth (501a) are mutually engaged, the two ends of the first elastic member (502b) are respectively fixedly connected to the limiting sleeve (502a) and the movable tooth (502c), one end of the connecting rod (503d) is fixedly connected to the movable tooth (502c), and the other end extends out of the limiting sleeve (502a) and is fixedly connected to the connecting plate (503c), and the connecting rod (503d) is slidably connected to the limiting sleeve (502a).

7. The rammed earth structure according to claim 6, characterized in that: The mounting assembly (601) comprises an extended mounting plate (601a) arranged on the sliding sleeve (501b), a rotating wheel (601b) arranged on the extended mounting plate (601a), and a linkage tooth (601c) arranged on the rotating wheel (601b); Two rotating wheels (601b) are provided, and both rotating wheels (601b) are provided with linkage teeth (601c) and the two are meshed with each other.

8. The rammed earth structure according to claim 7, characterized in that: The spreading assembly (602) comprises a clamping head (602a) arranged on a rotating wheel (601b), an extension plate (602b) arranged on the rotating wheel (601b), a clamping roller (602c) arranged on the extension plate (602b), a limiting plate (602d) arranged on the clamping roller (602c), and a second elastic member (602e) arranged on the extension plate (602b).

9. The rammed earth structure according to claim 8, characterized in that: The driving assembly (603) comprises a second cylinder (603a) arranged on the sliding sleeve (501b), and a push rod (603b) arranged on the output shaft of the second cylinder (603a); the push rod (603b) is adapted to the clamping head (602a), and the two ends of the second elastic member (602e) are respectively fixedly connected to the two extension plates (602b).

10. The rammed earth structure according to claim 9, characterized in that: The watering assembly (701) comprises a main mounting plate (701a) arranged between the spreading assemblies (602), a through hole (701b) provided on the main mounting plate (701a), a water storage tank (701c) arranged on the main mounting plate (701a), and a fixing column (701d) arranged on the main mounting plate (701a); The sealing assembly (702) comprises a rammed earth plate (702a) arranged under the main mounting plate (701a), a sealing protrusion (702b) arranged on the rammed earth plate (702a), and a mounting bolt (702c) arranged on the rammed earth plate (702a).

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