CN215524998U - Large-energy-level adjustable impact test platform capable of being used for high-level debris flow blocking structure - Google Patents
Large-energy-level adjustable impact test platform capable of being used for high-level debris flow blocking structure Download PDFInfo
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Abstract
The utility model provides an impact test platform with adjustable big energy level that can be used to high-order piece stream retaining structure relates to geological experiment and geological disasters prevention and control field, has add automatic large-tonnage hydraulic jack device, simulates the motion of piece stream under the multiple angle combination operating mode of upper portion first stage, two sections spouts of second stage. The bottom of the uppermost starting chute is also provided with a small-tonnage hydraulic jack so that a sliding block or accumulated particles preset in the starting chute can slide downwards. The rock mass is crushed by collision at the corner of the three-section type chute, and part of rock debris generates larger impact speed based on the momentum conservation theorem to influence the final movement distance and the accumulation state. The utility model provides the attached observation stair with the angle changed along with the lifting of the first-stage sliding groove and the second-stage sliding groove when the angle is changed. The platform belongs to a large-scale physical model test platform for high-level remote geological disasters with the largest scale and the most comprehensive functions at home and abroad and variable gradients.
Description
Technical Field
The utility model relates to the technical field of geological experiments and geological disaster prevention and control, in particular to a large-energy-level adjustable impact test platform for a high-position debris flow blocking structure.
Background
The high-level debris flow is a chain disaster which is collapsed and quickly converted into the debris flow after the landslide body is started at a high level, and has the characteristics of wide distribution, strong disaster occurrence and destructiveness and the like.
The starting, acceleration, erosion and accumulation of debris flow of the high-position landslide are a very complex multi-dimensional multi-field multi-process, various influence factors and weights are still difficult to be clear, and the construction of a mechanical equation reflecting the motion mechanism of the high-position landslide debris flow is still in an exploration stage. The mechanical mechanism and energy dissipation effect of the blocking protective structure are not clear, and a mature design and calculation method is lacked.
Therefore, a large test platform which can simulate the movement of the high-position landslide debris flow and impact of the blocking structure is urgently needed to be designed, so that the understanding of the movement mechanism of the high-position landslide debris flow and the development of the blocking structure design technology are improved by one step. At present, domestic test platforms generally aim at the research of debris flow, so that the sliding chute is generally closed and fixed at the bottom, and the automatic adjustment of the angle of the sliding chute is difficult to consider. Most of the existing devices capable of simulating the debris flow are only at one angle, and the simulation of multiple processes of starting, accelerating, eroding and accumulating of the high-level debris flow cannot be fully considered. The existing foreign test platform is only a large-scale field physical model test platform with the length of about one hundred meters established by the American geological survey bureau, but the test platform cannot change the gradient, and the influence of a complex path on the motion characteristic of the high-position landslide cannot be simulated due to only one section of sliding chute. Therefore, there is a need to develop a large energy level adjustable impact test platform for high debris flow retaining structures.
Disclosure of Invention
The utility model aims to solve the problems and provides a large-energy-level adjustable impact test platform which is easy to maintain and simple to operate and can be used for a high-position debris flow blocking structure. The technical scheme is as follows:
a large energy level adjustable impact test platform for use in an elevated debris flow retaining structure, comprising: support steel pipe concrete frame structure, multistage spout, depend on formula and observe stair, structure anchor pond, tails recovery pond, automatic hydraulic jack. Multistage spout includes from top to bottom: the starting chute (1-4), the first-stage chute (1-1), the second-stage chute (1-2) and the third-stage chute (1-3). Support steel pipe concrete frame structure includes: the device comprises a frame beam (2-1), frame columns (2-2), a hoisting sliding body channel (2-3), an electric hoist suspension beam (2-4), frame plates (2-5), iron railings (2-6), electric hoists (2-7), frame column foundations (2-8), foundation embedded anchor bolts (2-9) and fastening steel plates (2-10). The structural anchoring pond includes: masonry walls (4-1) and ground anchor ditches (4-2).
The automatic hydraulic jack (6) comprises: the hydraulic lifting jack comprises a first large-tonnage hydraulic jack (6-1), a first hinged section (6-2), a first large-tonnage supporting triangular steel frame (6-3), a second hinged section (6-4), a second large-tonnage hydraulic jack (6-5), a third hinged section (6-6), a second large-tonnage supporting triangular steel frame (6-7), a fourth hinged section (6-8), a small-tonnage hydraulic jack (6-9) and a fifth hinged section (6-10).
The single hydraulic tonnage of the large-tonnage hydraulic jack (6-1) is 16 tons, the main body part of the jack is fixed by a support triangular steel frame (6-3), and the inclined angle and the horizontal angle of the support tripod are 60 degrees.
The bottom of the first large-tonnage hydraulic jack (6-1) is provided with a first hinged section (6-2), and the first hinged section (6-2) is fixed on the frame beam (2-1) through a positioning pin.
The bottom of the second large-tonnage hydraulic jack (6-5) is provided with a third hinged section (6-6), and the third hinged section (6-6) is fixed on the frame beam (2-1) through a positioning pin.
The upper part of the jacking section of the first large-tonnage hydraulic jack is also fixed at the bottom of the first-stage sliding groove (1-1) through a second hinged section (6-4) and a positioning pin, and the upper part of the jacking section of the second large-tonnage hydraulic jack is also fixed at the bottom of the second-stage sliding groove (1-2) through a fourth hinged section (6-8) and a positioning pin.
The bottom of the starting chute (1-4) is also provided with a small-tonnage hydraulic jack (6-9) which is also fixed at the bottom of the starting chute (1-4) through a fifth hinged section (6-10) and a positioning pin, so that the starting chute (1-4) is obliquely arranged at a gradient of 10-30 degrees,
the large-energy-level adjustable impact test platform for the high-position debris flow blocking structure comprises:
the distance between the positioning pin in the first-stage sliding chute (1-1) and the lower end of the first-stage sliding chute (1-1) is 2.3m, and the distance between the positioning pin in the second-stage sliding chute (1-2) and the upper end of the second-stage sliding chute (1-2) is 2.6m
When the included angles between the first-stage sliding groove (1-1) and the second-stage sliding groove (1-2) and the horizontal plane are 45 degrees, the middle point of two points between the positioning pin in the first-stage sliding groove (1-1) and the positioning pin in the second-stage sliding groove (1-2) is coincided with the middle point of the bevel edge of the triangle where the first-stage sliding groove (1-1) and the second-stage sliding groove (1-2) are located.
The lengths of the first-stage sliding groove (1-1) and the second-stage sliding groove (1-2) are both larger than the length of half of the bevel edge of the triangle where the first-stage sliding groove (1-1) and the second-stage sliding groove (1-2) are located. The corner of the first-stage sliding groove (1-1) and the second-stage sliding groove (1-2) is ensured not to have a gap when the angle is changed.
A large energy level adjustable impact test platform for use in an elevated debris flow retaining structure, comprising:
the large-tonnage hydraulic jack (6-1) can be automatically jacked through a control key, the included angle between the first-stage chute (1-1) and the horizontal plane can be changed from 60 degrees to 45 degrees in the jacking process, and the included angle between the second-stage chute (1-2) and the horizontal plane can be changed from 30 degrees to 45 degrees. The angle change of the first-stage sliding chute (1-1) and the second-stage sliding chute (1-2) is not related.
When the test is finished, the jack is used for automatically resetting. The adjustment of the two-stage chute angle can be used for calculating the movement speed V of the high-position chip flow on different slope slopes in a comparison manner, and further calculating the impact energy E of the high-position chip flow.
Large-energy-level adjustable impact test platform for high-level debris flow blocking structure, and final accumulation section movement distance D of large-energy-level adjustable impact test platform2Can be expressed as follows:
if it is
D2＝0 (2)
If it is
Wherein D is1The horizontal distance of the second section of the chute; v0HFor the speed V of the slide block at the end of the first section of the chute0A horizontal component of (a); Δ V0HFor the speed V of the slide block at the end of the first section of the chute0Is increased by the horizontal component of (a). f. of1、 f2The friction coefficient of the second section of sliding chute and the third section of sliding chute is shown; phi is an included angle between the second section of the sliding chute and the horizontal plane; g is gravity plusSpeed; vmaxThe maximum speed of the pieces formed for the slide at the end of the second section chute.
A large-energy-level adjustable impact test platform for a high-position debris flow blocking structure is characterized in that a sliding block or accumulated particles can be transported to the upper part by an electric hoist (2-7) on a top-layer electric hoist suspension beam (2-4) through a hoisting sliding body channel (2-3).
The large-energy-level adjustable impact test platform can be used for a high-position debris flow blocking structure, the side faces of a first-stage sliding groove (1-1) and a second-stage sliding groove (1-2) are welded with an attached observation stair (3), and when the first-stage sliding groove (1-1) and the second-stage sliding groove (1-2) change angles along with the jacking of a large-tonnage hydraulic jack (6-1), the attached observation stair (3) also changes angles along with the lifting. The arrangement of the attached observation stair (3) facilitates the scientific research personnel to observe the shapes of the chip flows in each position of the sliding chute and clean the later stage.
The large-energy-level adjustable impact test platform can be used for a high-position debris flow blocking structure, an earth anchor ditch (4-2) in a structural anchoring pool (4) is a rectangular groove, and the earth anchor ditch (4-2) is used for installing the bottom end of a protective structure. Such as pile forest dam, pile beam dam, pile-net rigid-flexible combined structure, rib bottom protection structure and the like.
The large-energy-level adjustable impact test platform can be used for a high-level debris flow blocking structure, a flat-pushing type recovery pool cover (5-1) can be arranged at the top of a tailing recovery pool (5), and trundles are arranged between the flat-pushing type recovery pool cover (5-1) and a recovery pool wall (5-2) constructed by brickworks at two sides. During the test, the pool cover is pushed open, and the cover plate is closed after the test is finished. The tailing recycling tank (5) can collect and recycle corresponding tailings.
The utility model discloses a large-energy-level adjustable impact test platform for a high-position debris flow blocking structure, which has the following effects:
(1) the large-energy-level adjustable impact test platform has the greatest advantages that the limitation of a traditional test device on simulating the fixed angle of the debris flow chute is overcome, and the automatic large-tonnage hydraulic jack device is additionally arranged, so that the movement of the debris flow under the working condition of multiple angle combinations of the first-stage chute and the second-stage chute at the upper part can be simulated. The bottom of the uppermost starting chute is also provided with a small-tonnage hydraulic jack so that a sliding block or accumulated particles preset in the starting chute can slide downwards.
(2) At present, the general sliding chute is at most a two-section sliding chute (only one corner) with a changeable angle, the test platform is a three-section large sliding chute (two corners) with two changeable angles, rock blocks with certain strength collide and are broken at the turning of the three-section sliding chute, and based on the momentum conservation theorem, partial rock debris generates larger impact speed to influence the final movement distance and the accumulation state.
(3) The utility model firstly proposes that when the first-stage and second-stage sliding grooves are jacked and changed in angle, the angle dependent observation of the stairs is facilitated. The arrangement of the attached observation stair greatly facilitates the observation of the debris flow shapes of all places in the sliding groove by scientific research personnel and the cleaning work in the later period.
(4) The test platform can be built in a nearby place, and the structural anchoring pool can be provided with test models such as a pile forest dam, a pile beam dam, a pile net rigid-flexible combined structure, a rib bottom protection structure and the like. The large-scale and even full-scale impact test of various impact-resistant blocking structures can be realized on the same platform, the test site is not limited by the site environment, the impact-resistant blocking test and data acquisition can be conveniently and repeatedly carried out, and the cost can be fully controlled.
(5) Set up the tails recovery pond, on the one hand with surplus motion particle drag reduction, improve the safety in the test process, on the other hand collects, cyclic utilization waste material, plays reduce cost and environmental protection effect.
(6) The test platform belongs to a large-scale physical model test platform with variable gradient for high-level remote geological disasters, which is designed and constructed independently, has the largest scale and the most complete functions at home and abroad. The maximum height of the test platform reaches 21m, wherein the effective height is 14m, the maximum length reaches 40m, and the maximum potential energy of one test can reach about 5000 KJ. The platform mainly comprises the following parts: (1) a main structure platform of 4.3 × 21 × 9.4m (length/height/width); (2) a variable-gradient 1 multiplied by 1.2 multiplied by 3.2m (length/height/width) sliding source area, wherein the gradient range of the variable-gradient sliding source area can be matched with the gradient of a first section of sliding chute; (3) two variable-gradient potential-kinetic energy conversion areas (chutes), each section of which is about 12m long, the size of the section of the first section is 1.2 multiplied by 1.2m, the variable gradient range is 45-60 degrees, the length of the section of the second section is 1.2m, the width of the section can be adjusted from 1.2 to 1.5m, and the variable gradient range is 30-45 degrees; (4) a bottom stacking zone about 20m long and about 6.3m wide; and (5) a hydraulic system. The slope of the two sections of sliding chutes is adjusted by four hydraulic pressures, each hydraulic pressure is 2.5m long, the maximum footage is 2m, and the maximum hydraulic tonnage is 16 tons. The inside two steel sheet stairs that run that have still set up of test platform, the centre sets up half space. The space of the bottom 1 layer and the bottom 2 layer can be used as a control operation platform for placing a monitoring and collecting instrument and a hydraulic jack and a place for observing and recording a monitoring curve by a worker.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to make the technical means more comprehensible, the present invention may be implemented according to the content of the description, and the above and other objects, features, and advantages thereof may be better understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the fluidization scheme for slider collision fragmentation of the present invention;
FIG. 2 is a side view of the present invention (before the angle is changed);
FIG. 3 is a side schematic view of the present invention (after the angle is changed);
FIG. 4 is a schematic plan view of the present invention;
FIG. 5 is a schematic elevation view of the present invention;
FIG. 6 is a flow chart of the installation of the large-tonnage hydraulic jack of the present invention;
FIG. 7 is a test scheme of the barrier pile group blocking structure of the utility model;
fig. 8 is a comparison graph of experimental results of the barrier pile group retaining structure of the utility model, wherein (a) is the case of no barrier pile and (b) is the case of barrier pile.
1. The first-stage sliding chutes (1-1), 2, the second-stage sliding chutes (1-2), 3, the third-stage sliding chutes (1-3), 4, the starting sliding chutes (1-4), 5, the frame beams (2-1), 6, the frame columns (2-2), 7, the hoisting sliding body channels (2-3), 8, the electric hoist suspension beams (2-4), 9, the frame plates (2-5), 10, the iron railings (2-6), 11, the electric hoists (2-7), 12, the frame column foundations (2-8), 13, the foundation embedded anchor bolts (2-9), 14, the fastening steel plates (2-10), 15, the attachment observation stairs (3), 16, the masonry walls (4-1), 17, the ground anchor ditches (4-2), 18 and the flat-push type recovery pool cover (5-1), 19. the recycling tank comprises a recycling tank wall (5-2), 20, large-tonnage hydraulic jacks (6-1), 21, a first hinged section (6-2), 22, a first large-tonnage supporting triangular steel frame (6-3), 23, a second hinged section (6-4), 24, a second large-tonnage hydraulic jack (6-5), a third hinged section (6-6), 25, a second large-tonnage supporting triangular steel frame (6-7), 26, a fourth hinged section (6-8), 27, small-tonnage hydraulic jacks (6-9), 28 and a fifth hinged section (6-10).
Detailed Description
For further description of the present invention, a simulation test platform of an impact-resistant blocking structure for high-grade landslide debris flow is described in detail below with reference to the accompanying drawings and examples.
2-5 show that can be used to high-order piece stream structure of blocking's impact test platform with adjustable big energy level, include: support steel pipe concrete frame structure, multistage spout, depend on formula and observe stair, structure anchor pond, tails recovery pond, automatic hydraulic jack. Multistage spout includes from top to bottom: the starting chute (1-4), the first-stage chute (1-1), the second-stage chute (1-2) and the third-stage chute (1-3). Support steel pipe concrete frame structure includes: the device comprises a frame beam (2-1), frame columns (2-2), a hoisting sliding body channel (2-3), an electric hoist suspension beam (2-4), a frame plate (2-5), iron railings (2-6), an electric hoist (2-7), a frame column foundation (2-8), foundation embedded anchor bolts (2-9) and fastening steel plates (2-10). The structural anchoring pond includes: masonry walls (4-1) and ground anchor ditches (4-2). The tailing recovery pond (5) comprises: a flat push type recovery tank cover (5-1) and a recovery tank wall (5-2). The automatic hydraulic jack (6) comprises: the hydraulic lifting jack comprises a first large-tonnage hydraulic jack (6-1), a first hinged section (6-2), a first large-tonnage supporting triangular steel frame (6-3), a second hinged section (6-4), a second large-tonnage hydraulic jack (6-5), a third hinged section (6-6), a second large-tonnage supporting triangular steel frame (6-7), a fourth hinged section (6-8), a small-tonnage hydraulic jack (6-9) and a fifth hinged section (6-10).
The installation process of the first large-tonnage hydraulic jack (6-1) is shown in detail in figure 5. Firstly, the position of a supporting point at the bottom of the sliding chute is determined, a positioning pin hole is fully welded at the supporting point, and a positioning pin penetrates through the top of the hydraulic shaft and is installed at the positioning pin hole, so that the position of the hydraulic top is fixed. Then, the chute is hoisted to the designed maximum corner by a crane, the shortest length of the hydraulic rod perpendicular to the bottom beam of the chute is taken as the target size to further determine the position of the mounting point of the hydraulic bottom, the positioning pin hole is fully welded at the mounting point of the hydraulic bottom by adopting the same method, and the positioning pin penetrates through the hydraulic bottom to fix the position of the hydraulic bottom.
As shown in fig. 2, firstly, 200 blocks of blocks are pre-pressed on the ground, and the main material is barite powder. After the slider is cured to form strength, the slider is placed in a transportation iron frame, and the electric hoist (2-7) on the top layer electric hoist suspension beam (2-4) is transported to an upper platform through the hoisting slider channel (2-3). The sliding blocks are sequentially placed in the starting sliding grooves (1-4) by workers, and then the starting sliding grooves (1-4) are jacked to a certain angle by a small-tonnage hydraulic jack (6-9), so that the sliding blocks slide downwards. At the moment, the first-stage chute (1-1) keeps an initial angle of 60 degrees (an included angle with the horizontal plane), and the second-stage chute (1-2) keeps an initial angle of 30 degrees (an included angle with the horizontal plane). The slide blocks are broken into chips in the moving process, accelerated by inertia, expanded and accumulated in the structure anchoring pool (4) and the tailing recovery pool (5). The protective structure contrast test can be carried out, namely under the test working conditions, a barrier pile group structure model is applied to the structural anchoring pool (4), the distance between the front and the back of each pile group and the horizontal distance are respectively 200mm, three rows are applied in total, and the front and the back are arranged in a staggered manner, so that the effect of the blocking structure and the impact effect of the debris flow on the structure are tested (see figure 7 in detail). Before the test, the attached observation stair (3) can be ascended to erect a monitoring instrument. After the test, the user can climb up the attachment type observation stair (3) to further observe the test result. The comparison of the test results can be seen in FIG. 8.
As shown in fig. 2, firstly, 200 blocks of blocks are pre-pressed on the ground, and the main material is barite powder. After the slider is cured to form strength, the slider is placed in a transportation iron frame, and the electric hoist (2-7) on the top layer electric hoist suspension beam (2-4) is transported to an upper platform through the hoisting slider channel (2-3). The sliding blocks are sequentially placed in the starting sliding grooves (1-4) by workers, and then the starting sliding grooves (1-4) are jacked to a certain angle by a small-tonnage hydraulic jack (6-9), so that the sliding blocks slide downwards. At the moment, the first-stage sliding chute (1-1) is jacked to an angle of 55 degrees (included angle with the horizontal plane), and the second-stage sliding chute (1-2) is jacked to an angle of 35 degrees (included angle with the horizontal plane). The slide blocks are broken into chips in the moving process, accelerated by inertia, expanded and accumulated in the structure anchoring pool (4) and the tailing recovery pool (5). The protective structure contrast test can be carried out, namely under the test working condition, a barrier pile group structure model is applied to the structure anchoring pool (4), the distances between the front and back of the pile group and the horizontal distance are respectively 200mm, three rows are applied in total, and the front and back are arranged in a staggered manner, so that the blocking structure effect can be tested, and the impact effect of the debris flow on the structure can be tested. Before the test, the attached observation stair (3) can be ascended to erect a monitoring instrument. After the test, the user can climb up the attachment type observation stair (3) to further observe the test result.
As shown in fig. 2, firstly, 200 blocks of blocks are pre-pressed on the ground, and the main material is barite powder. After the slider is cured to form strength, the slider is placed in a transportation iron frame, and the electric hoist (2-7) on the top layer electric hoist suspension beam (2-4) is transported to an upper platform through the hoisting slider channel (2-3). The sliding blocks are sequentially placed in the starting sliding grooves (1-4) by workers, and then the starting sliding grooves (1-4) are jacked to a certain angle by a small-tonnage hydraulic jack (6-9), so that the sliding blocks slide downwards. At the moment, the first-stage sliding chute (1-1) is jacked to an angle of 45 degrees (included angle with the horizontal plane), and the second-stage sliding chute (1-2) is jacked to an angle of 45 degrees (included angle with the horizontal plane). The slide blocks are broken into chips in the moving process, accelerated by inertia, expanded and accumulated in the structure anchoring pool (4) and the tailing recovery pool (5). The protective structure contrast test can be carried out, namely under the test working condition, a barrier pile group structure model is applied to the structure anchoring pool (4), the distances between the front and back of the pile group and the horizontal distance are respectively 200mm, three rows are applied in total, and the front and back are arranged in a staggered manner, so that the blocking structure effect can be tested, and the impact effect of the debris flow on the structure can be tested. Before the test, the attached observation stair (3) can be ascended to erect a monitoring instrument. After the test, the user can climb up the attachment type observation stair (3) to further observe the test result.
Claims (6)
1. The utility model provides an impact test platform with adjustable big energy level that can be used to high-order piece stream to block structure which characterized in that includes:
the device comprises a supporting steel pipe concrete frame structure, a multistage chute, a structure anchoring pool, a tailing recovery pool and an automatic hydraulic jack; support steel pipe concrete frame structure includes: a frame beam (2-1) and a frame column (2-2); multistage spout includes from top to bottom: a starting chute (1-4), a first-stage chute (1-1), a second-stage chute (1-2) and a third-stage chute (1-3); the structural anchoring pond includes: masonry walls (4-1) and ground anchor ditches (4-2);
the automatic hydraulic jack (6) comprises: the hydraulic lifting jack comprises a first large-tonnage hydraulic jack (6-1), a first hinged section (6-2), a first large-tonnage supporting triangular steel frame (6-3), a second hinged section (6-4), a second large-tonnage hydraulic jack (6-5), a third hinged section (6-6), a second large-tonnage supporting triangular steel frame (6-7), a fourth hinged section (6-8), a small-tonnage hydraulic jack (6-9) and a fifth hinged section (6-10);
the single hydraulic tonnage of the first large-tonnage hydraulic jack (6-1) is 16 tons, the main body part of the jack is fixed by a support triangular steel frame (6-3), and the inclined angle and the horizontal angle of a support tripod are 60 degrees;
the bottom of the first large-tonnage hydraulic jack (6-1) is provided with a first hinged section (6-2), and the first hinged section (6-2) is fixed on the frame beam (2-1) through a positioning pin;
a third hinged section (6-6) is arranged at the bottom of the second large-tonnage hydraulic jack (6-5), and the third hinged section (6-6) is fixed on the frame beam (2-1) through a positioning pin;
the upper part of the jacking section of the first large-tonnage hydraulic jack is also fixed at the bottom of the first-stage sliding chute (1-1) through a second hinged section (6-4) and a positioning pin, and the upper part of the jacking section of the second large-tonnage hydraulic jack is also fixed at the bottom of the second-stage sliding chute (1-2) through a fourth hinged section (6-8) and a positioning pin;
the bottom of the starting chute (1-4) is also provided with a small-tonnage hydraulic jack (6-9), and the small-tonnage hydraulic jack is also fixed at the bottom of the starting chute (1-4) through a fifth hinged section (6-10) and a positioning pin, so that the starting chute (1-4) is obliquely arranged at a gradient of 10-30 degrees.
2. The large energy level adjustable impact test platform for the high debris flow retaining structure according to claim 1,
the distance between a positioning pin in the first-stage sliding chute (1-1) and the lower end of the first-stage sliding chute (1-1) is 2.3m, and the distance between the positioning pin in the second-stage sliding chute (1-2) and the upper end of the second-stage sliding chute (1-2) is 2.6 m;
when the included angles between the first-stage sliding chute (1-1) and the second-stage sliding chute (1-2) and the horizontal plane are 45 degrees, the middle point of two points between the positioning pin in the first-stage sliding chute (1-1) and the positioning pin in the second-stage sliding chute (1-2) is superposed with the middle point of the bevel edge of the triangle where the first-stage sliding chute (1-1) and the second-stage sliding chute (1-2) are located;
the lengths of the first-stage sliding groove (1-1) and the second-stage sliding groove (1-2) are both larger than the length of half of the bevel edge of the triangle where the first-stage sliding groove (1-1) and the second-stage sliding groove (1-2) are located.
3. The large energy level adjustable impact test platform for the high debris flow retaining structure according to claim 1,
the side surfaces of the first-stage sliding groove (1-1) and the second-stage sliding groove (1-2) are welded and attached to the observation stair (3).
4. The large energy level adjustable impact test platform for the high debris flow retaining structure according to claim 1,
the ground anchor ditch (4-2) in the structural anchoring pool (4) is a rectangular groove.
5. The large energy level adjustable impact test platform for the high debris flow retaining structure according to claim 1,
the top of the tailing recovery pond (5) is provided with a flat-pushing type recovery pond cover (5-1), and castors are arranged between the flat-pushing type recovery pond cover (5-1) and the recovery pond walls (5-2) constructed by brickworks on two sides.
6. The large energy level adjustable impact test platform for the high debris flow retaining structure according to claim 1,
support steel pipe concrete frame structure includes: the device comprises a frame beam (2-1), frame columns (2-2), a hoisting sliding body channel (2-3), an electric hoist suspension beam (2-4), frame plates (2-5), iron railings (2-6), electric hoists (2-7), frame column foundations (2-8), foundation embedded anchor bolts (2-9) and fastening steel plates (2-10).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486145A (en) * | 2022-01-29 | 2022-05-13 | 同济大学 | Ultra-high speed debris flow impact simulation platform and test method under weak Coriolis effect |
| CN114486146A (en) * | 2022-01-29 | 2022-05-13 | 同济大学 | Test device for ultra-high speed debris flow impact simulation under weak Coriolis effect |
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2021
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486145A (en) * | 2022-01-29 | 2022-05-13 | 同济大学 | Ultra-high speed debris flow impact simulation platform and test method under weak Coriolis effect |
| CN114486146A (en) * | 2022-01-29 | 2022-05-13 | 同济大学 | Test device for ultra-high speed debris flow impact simulation under weak Coriolis effect |
| CN114486146B (en) * | 2022-01-29 | 2023-05-09 | 同济大学 | Test device for ultra-high speed chip flow impact simulation under weak Coriolis effect |
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