阅读说明：本技术 一种隧洞影响区植被生长用水测试装置 (Tunnel affected zone vegetation growth water testing arrangement ) 是由 张傲 于 2020-10-30 设计创作，主要内容包括：本发明公开了水利技术测试技术领域的一种隧洞影响区植被生长用水测试装置,包括两组侧板,两组侧板的底端均转动连接底板,两组侧板相互远离的一侧与处理箱连接,处理箱内腔中设置两组相互对称的丝杆,两组丝杆上均滑动套接丝杆滑块,丝杆滑块均通过连接杆与底板的底端转动连接,底板的顶端设置模拟隧道,两组侧板之间均匀设置插板限位管,前后两组相邻插板限位管之间设置插板,插板的上方为细沙层,细沙层的上方为石块层,侧板的顶端设置两组玻璃板,两组玻璃板的底端均设置前后方向的固定条,固定条内均开有前后滑槽,其内设置滑动杆,滑动杆水平横向设置,滑动杆的底端均匀设置喷嘴,该装置能快速更换土壤,便于进行下组实验,减少准备时间。(The invention discloses a device for testing vegetation growth water in a tunnel influence area, which belongs to the technical field of water conservancy technical testing and comprises two groups of side plates, wherein the bottom ends of the two groups of side plates are rotatably connected with a bottom plate, the side, away from each other, of the two groups of side plates is connected with a treatment box, two groups of symmetrical screw rods are arranged in the inner cavity of the treatment box, screw rod slide blocks are slidably sleeved on the two groups of screw rods, the screw rod slide blocks are rotatably connected with the bottom end of the bottom plate through connecting rods, a simulation tunnel is arranged at the top end of the bottom plate, inserting plate limiting pipes are uniformly arranged between the two groups of side plates, an inserting plate is arranged between the front and back two groups of adjacent inserting plate limiting pipes, a fine sand layer is arranged above the inserting plate, a stone layer is arranged above the fine sand layer, two groups of glass plates are arranged at the top ends of the side plates, the bottom of slide bar evenly sets up the nozzle, and the device can quick replacement soil, is convenient for organize the experiment down, reduces the preparation time.)

1. The utility model provides a tunnel affected zone vegetation growth water testing arrangement, includes two sets of curb plates (1), its characterized in that: the bottom of two sets of curb plates (1) all rotates and connects bottom plate (2), and two sets of one side that curb plates (1) kept away from each other is connected with processing case (3), the inner chamber bottom of processing case (3) sets up pull case (4), the open-top of pull case (4), set up two sets of mutually symmetrical lead screw (5) in processing case (3) inner chamber, two sets of lead screw (5) coaxial coupling, lead screw (5) are connected with hand wheel (6), two sets of lead screw slider (7) are cup jointed all to slip on lead screw (5), lead screw slider (7) all rotate through the bottom of connecting rod and bottom plate (2) and are connected, the top of bottom plate (2) sets up simulation tunnel (8), and two sets of evenly set up the spacing pipe (9) of picture peg between curb plate (1), and the front and back two sets up picture peg (10) between the spacing pipe (9) of picture peg, picture peg (10) pass curb plate (1) and are connected with breakwater (11), the bottom of picture peg (10) is soil layer, the top of picture peg (10) is fine sand layer (12), the top of fine sand layer (12) is stone layer (13), the top of curb plate (1) sets up two sets of glass boards (14), and is two sets of the bottom of glass board (14) all sets up fore-and-aft direction fixed strip (15), all open spout around having in fixed strip (15), set up slide bar (16) in it, slide bar (16) level transversely sets up, the bottom of slide bar (16) evenly sets up nozzle (17).

2. The device of claim 1 for testing water for vegetation growth in a tunnel affected zone, wherein the device comprises: the upper portion of the sliding rod (16) is sleeved with two groups of limiting sliding blocks (18) which are symmetrical to each other in a sliding mode, threaded holes are evenly formed in the bottom ends of the limiting sliding blocks (18), butterfly bolts (19) are arranged in the threaded holes, the limiting sliding blocks (18) are connected with first supporting rods (20) in a rotating mode, the first supporting rods (20) are connected with inclined blocks (21) in a rotating mode, inclined grooves (22) matched with the inclined blocks (21) in a mutually are formed in the side plates (1), the inclined blocks (21) are connected with second supporting rods (23) in a rotating mode, the second supporting rods (23) are connected with the side wall of a cylindrical barrel (24) in a rotating mode, through hole grooves are evenly formed in the bottom end of the cylindrical barrel (24), and pressing rollers (25) are arranged in the through hole grooves.

3. The device of claim 2 for testing water for vegetation growth in a tunnel affected zone, wherein the device comprises: one side inner chamber that a cylinder (24) is close to simulation tunnel (8) sets up limiting plate (26), one side that limiting plate (26) are close to simulation tunnel (8) is connected with gag lever post (27), gag lever post (27) pass a cylinder (24) and are connected with squeeze ball (28), cup joint reset spring (29) on gag lever post (27), set up rotating electrical machines (30) in a cylinder (24), the motor shaft and the cam (31) of rotating electrical machines (30) are connected, cam (31) are located one side that limiting plate (26) are close to simulation tunnel (8).

4. The device of claim 3 for testing water for vegetation growth in a tunnel affected zone, wherein the device comprises: the bottom of extrusion ball (28) is passed through branch and is rotated with push pedal (32) and be connected, push pedal (32) are the swash plate, set up the spring between push pedal (32) and the branch, the top and the branch of extrusion ball (28) are connected, branch and guide arm slider (33) fixed connection, guide arm slider (33) slip cup joint on horizontal guide arm (34), guide arm (34) are fixed on the top lateral wall of cylinder (24).

5. The device of claim 4 for testing water for vegetation growth in a tunnel affected zone, wherein: the compression roller (25) is divided into two parts by taking a central horizontal line as a reference, wherein one part of the outer wall is uniformly and fixedly provided with a crushing blade (251), the other part of the outer wall is uniformly and fixedly provided with a compression pad (252), the top end of the inner cavity of the cylindrical barrel (24) is provided with a fixed block (241), the bottom end of the fixed block (241) is uniformly provided with a limiting groove, an extrusion spring (242) is uniformly arranged in the limiting groove, the extrusion spring (242) is connected with a carding plate (243), and the crushing blade (251) is positioned between two groups of carding plates (243).

6. The device of claim 5 for testing water for vegetation growth in a tunnel affected zone, wherein the device comprises: the top of two sets of bottom plate (2) evenly sets up the water blocking strip of fore-and-aft direction, and is two sets of bottom plate (2) department of contacting each other all sets up the adhesive tape that blocks water, and is two sets of the handing-over department of bottom plate (2) is the zigzag.

7. The use method of the tunnel influence area vegetation growth water test device according to any one of claims 1-6, wherein the tunnel influence area vegetation growth water test device comprises: the method comprises the following steps:

s1: between the two groups of side plates (1), a soil layer, a fine sand layer (12) and a stone layer (13) are sequentially stacked from bottom to top, the boundary of the soil layer and the fine sand layer (12) is just on the plane where the inserting plate (10) is located, plants are sown on the stone layer (13), and spray irrigation is carried out through the nozzles (17), the glass plates (14) can enable the plants to receive light for photosynthesis, and meanwhile, external rainwater is prevented from influencing plant growth;

s2: in the process of plant growth, watering is continuously carried out at fixed time and fixed point, the growth state of plants at different positions is observed, the influence of water content on vegetation growth when a tunnel is opened is simulated, when a next group of experiments are needed after the observation is finished, the inserting plate (10) is inserted into the inserting plate limiting pipe (9), so that the soil layer and the fine sand layer (12) are separated from each other, the hand wheel (6) is rotated to drive the screw rod (5) to rotate, the screw rod (5) makes the two groups of screw rod sliding blocks (7) be away from each other through the screw thread action, so that the two bottom plates (2) are opened, the soil falls into the drawing box (4), and the pull-out box (4) is drawn out to take out the soil, the pull-out box (4) is replaced, the vegetation on the stone layer (13) is cut off, the inserting plate (10) is drawn out, make stone and sand drop to the pull case in, take out and carry out the drying, the deactivation prevents that grass root seed from producing the influence to next set of experiment.

S3: in the process of reloading soil and gravel, the sliding rod (16) is pushed forwards and backwards, the cylindrical barrel (24) and the compression roller (25) are driven to level and compact the soil through linkage, so as to simulate a hard soil environment in real life, the crushing blades (251) on the compression roller (25) can loosen the soil and extrude and tamp the soil through the compression pad (252), soil blocks in the crushing blades (251) can be cleaned through the carding plate (243), when the compression pad (252) rotates to be in contact with the carding plate (243), the carding plate (243) bounces upwards, the soil adhered to the carding plate (243) can be cleaned, and a self-cleaning effect is achieved;

s4: the earth of the four walls in tunnel all is through ramming compaction, processes such as slip casting, make the earth texture of the four walls in tunnel harder, in order to simulate this condition, when leveling to soil layer, rotating electrical machines (30) drive cam (31) and rotate, cam (31) drive limiting plate (26) horizontal slip, effect through reset spring (29), make extrusion ball (28) constantly strike the outer wall surface of simulation tunnel (8), push pedal (32) can gather earth, make the earth of simulation tunnel (8) outer wall surface firmly by the compaction, ensure that the environment that simulation tunnel (8) were located is close to actual environment.

Technical Field

The invention relates to the technical field of water conservancy technology testing, in particular to a device for testing vegetation growth water consumption of a tunnel influence area.

Background

Because more and more examples of environment damage caused by engineering construction exist, the distribution of surface water resources is greatly changed by urban subways and high-speed railway tunnels, the growth of plants is influenced, and the coordinated development of the whole ecological environment is not facilitated for a long time;

in the existing experimental device, influence of artificial rainfall on surface water resource distribution is simulated, various plants are usually selected for simulation, for example, gramineae plants such as ryegrass, tall fescue and bermuda grass, leguminous plant species such as trifoliate-leaf clover, alfalfa, amorpha fruticosa and magnolia florida, and shrub seeds such as magnolia florida, lespedeza, pigeon pea, faecia procumbens and robinia pseudoacacia are selected for comparison and observation under normal conditions, the surface water distribution corresponding to the well-grown plants is abundant, the plant growth water condition is observed according to the method, soil and planting need to be turned over again when the plant species are replaced, the existing device cannot rapidly replace soil geology, and time is consumed, and therefore, the device for testing the vegetation growth water in a tunnel influence area is provided.

Disclosure of Invention

The invention aims to provide a device for testing vegetation growth water in a tunnel influence area, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a device for testing water for vegetation growth in a tunnel influence area comprises two groups of side plates, wherein the bottoms of the two groups of side plates are rotatably connected with a bottom plate, one side, away from each other, of the two groups of side plates is connected with a treatment box, the bottom of an inner cavity of the treatment box is provided with a drawing box, the top end of the drawing box is provided with an opening, the inner cavity of the treatment box is internally provided with two groups of symmetrical lead screws, the two groups of lead screws are coaxially connected, the lead screws are connected with a hand wheel, the two groups of lead screws are respectively sleeved with a lead screw sliding block in a sliding manner, the lead screw sliding blocks are respectively rotatably connected with the bottom end of the bottom plate through connecting rods, the top end of the bottom plate is provided with a simulation tunnel, an inserting plate limiting pipe is uniformly arranged between the two groups of side plates, an inserting plate is arranged between the front, the top on fine sand layer is the stone layer, the top of curb plate sets up two sets of glass boards, and is two sets of the bottom of glass board all sets up the fixed strip of fore-and-aft direction, all open the spout around having in the fixed strip, set up the slide bar in it, the slide bar level is horizontal to be set up, the bottom of slide bar evenly sets up the nozzle.

Furthermore, two groups of mutually symmetrical limiting slide blocks are sleeved on the sliding rod in a sliding mode, threaded holes are evenly formed in the bottom ends of the two groups of limiting slide blocks, butterfly bolts are arranged in the threaded holes, the two groups of limiting slide blocks are connected with first supporting rods in a rotating mode, the first supporting rods are connected with inclined blocks in a rotating mode, inclined grooves matched with the inclined blocks are formed in the side plates, the inclined blocks are connected with second supporting rods in a rotating mode, the second supporting rods are connected with the side wall of the cylindrical barrel in a rotating mode, through hole grooves are evenly formed in the bottom end of the cylindrical barrel, and compression rollers are arranged in the through hole grooves.

Further, one side inner chamber that a cylinder is close to the simulation tunnel sets up the limiting plate, one side that the limiting plate is close to the simulation tunnel is connected with the gag lever post, the gag lever post passes a cylinder and is connected with the squeeze ball, cup joint reset spring on the gag lever post, set up the rotating electrical machines in the cylinder, the motor shaft and the cam of rotating electrical machines are connected, the cam is located one side that the limiting plate is close to the simulation tunnel.

Further, the bottom of extrusion ball is passed through branch and is rotated with the push pedal and be connected, the push pedal is the swash plate, set up the spring between push pedal and the branch, the top and the branch of extrusion ball are connected, branch and guide arm slider fixed connection, the guide arm slider slides and cup joints on horizontal guide arm, the guide arm is fixed on the top lateral wall of cylinder.

Furthermore, the compression roller is divided into two parts by taking a central horizontal line as a reference, wherein one part of the outer wall is uniformly and fixedly provided with a crushing blade, the other part of the outer wall is uniformly and fixedly provided with a pressing pad, the top end of the inner cavity of the cylindrical barrel is provided with a fixed block, the bottom end of the fixed block is uniformly provided with a limiting groove, an extrusion spring is uniformly arranged in the limiting groove, the extrusion spring is connected with the carding plates, and the crushing blade is positioned between the two groups of carding plates.

Furthermore, the top of two sets of bottom plates evenly sets up the water blocking strip of fore-and-aft direction, and two sets of bottom plate mutual contact department all sets up the adhesive tape that blocks water, and is two sets of the handing-over department of bottom plate is the zigzag.

A use method of a device for testing vegetation growth water in a tunnel influence area comprises the following steps:

s1: a soil layer, a fine sand layer and a stone layer are sequentially stacked between the two groups of side plates from bottom to top, the boundary of the soil layer and the fine sand layer is just on the plane where the inserting plate is located, plants are sown on the stone layer, and spray irrigation is carried out through a nozzle, so that the plants can receive light for photosynthesis, and meanwhile, the influence of external rainwater on the growth of the plants is avoided;

s2: in-process at vegetation, it waters to last regularly fixed point, and observe different positions vegetation's state, water content is to vegetation growth's influence when breaking through with simulation tunnel, the observation finishes, when needing to carry out the experiment of organizing next, insert the picture peg in the spacing pipe of picture peg, make dirt layer and fine sand layer alternate segregation, the hand wheel rotates, the drive lead screw rotates, the lead screw makes two sets of lead screw sliders keep away from each other through screw thread effect, make two fan bottom plates open, earth falls in the pull case, and take out the pull case and take out earth, place the pull case again, cut off the vegetation on the stone layer, take out the picture peg, make stone and sand drop in the pull case, it is dry to take out, the deactivation, prevent that the grass root seed from producing the influence to the experiment of a set of next.

S3: in the process of reloading soil and gravel, the sliding rod is pushed forwards and backwards, the cylindrical barrel and the compression roller are driven to level and compact the soil through linkage, so as to simulate a hard soil environment in real life, the crushing blade on the compression roller can loosen the soil and extrude and compact the soil through the pressing pad, the soil blocks in the crushing blade can be cleaned through the carding plate, when the pressing pad rotates to be in contact with the carding plate, the carding plate bounces upwards, the soil adhered to the carding plate can be cleaned, and the self-cleaning effect is achieved;

s4: the earth of the four walls in tunnel all is through ramming, processes such as slip casting, make the earth texture of the four walls in tunnel harder, in order to simulate this condition, when leveling to soil layer, the rotating electrical machines drives the cam and rotates, the cam drives the limiting plate horizontal slip, effect through reset spring, make the extrusion ball strike the outer wall surface in simulation tunnel constantly, the push pedal can gather earth, make the earth on simulation tunnel outer wall surface firmly by the compaction, ensure that the environment that the simulation tunnel was located is close actual environment.

Compared with the prior art, the invention has the beneficial effects that:

1. the device for testing the vegetation growth water in the tunnel influence area can be used by combining the bottom plate, the inserting plate, the side plate, the lead screw and the like, so that the soil and the geology can be quickly replaced, the preparation time of workers is shortened, the next plant can be conveniently cultivated and observed, meanwhile, sand and soil can be quickly separated during replacement, classification management is convenient, seeds and roots in the sand can be inactivated, and the next group of experiments can be prevented from being interfered;

2. in the process of filling soil, the cylindrical barrel, the compression roller, the inclined block and the like are combined for use, so that the soil can be tamped, and the pressure can be changed through the limiting slide block, so that the tightness of the soil is ensured to be similar in each group of experiment process, experiment errors are reduced, and orthogonal experiment observation is facilitated;

3. through combined action such as cam, extrusion ball and push pedal for near earth of simulation tunnel can be strengthened ramming to the in-process of ramming of earth, is used for simulation tunnel geological environment all around, and this process operation is simple, need not complicated adjustment, and the pertinence of device is strong, can reduce external environment to the influence of test, has improved efficiency of software testing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a cylindrical barrel according to the present invention;

FIG. 3 is a schematic view of the structure of the squeeze bulb of the present invention;

FIG. 4 is a schematic view of the construction of the press roll of the present invention.

In the figure: 1. a side plate; 2. a base plate; 3. a treatment tank; 4. drawing the box; 5. a screw rod; 6. a hand wheel; 7. a screw rod slide block; 8. simulating a tunnel; 9. inserting plate limiting pipes; 10. inserting plates; 11. a water baffle; 12. a fine sand layer; 13. a stone layer; 14. a glass plate; 15. a fixing strip; 16. a slide bar; 17. a nozzle; 18. a limiting slide block; 19. a butterfly bolt; 20. a first support bar; 21. a sloping block; 22. a chute; 23. a second support bar; 24. a cylindrical barrel; 25. a compression roller; 26. a limiting plate; 27. a limiting rod; 28. extruding the ball; 29. a return spring; 30. a rotating electric machine; 31. a cam; 32. pushing the plate; 33. a guide rod slider; 34. a guide bar; 241. a fixed block; 242. a compression spring; 243. a carding plate; 251. crushing the blade; 252. and a pressure pad.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a device for testing water for vegetation growth in a tunnel affected zone comprises two sets of side plates 1, wherein the bottom ends of the two sets of side plates 1 are rotatably connected with a bottom plate 2, the side plates 1 and the bottom plate 2 are waterproof plates, one sides, far away from each other, of the two sets of side plates 1 are connected with a treatment box 3, a drawing box 4 is arranged at the bottom of an inner cavity of the treatment box 3, the drawing box 4 can be drawn back and forth, soil and sand can be conveniently received, and the top end of the drawing box 4 is open;

as shown in fig. 1, two groups of mutually symmetrical lead screws 5 are arranged in an inner cavity of a treatment box 3, the two groups of lead screws 5 are coaxially connected, the lead screws 5 are connected with a hand wheel 6, lead screw sliders 7 are sleeved on the two groups of lead screws 5 in a sliding manner, the lead screw sliders 7 are rotatably connected with the bottom end of a bottom plate 2 through connecting rods, a simulation tunnel 8 is arranged at the top end of the bottom plate 2, the simulation tunnel 8 is fixedly welded with side plates 1 through steel pipes, insert plate limiting pipes 9 are uniformly arranged between the two groups of side plates 1, insert plates 10 are arranged between the front and back two adjacent insert plate limiting pipes 9, and the insert plates 10 are used for blocking sand and preventing sand from being mixed with soil during blanking;

as shown in fig. 1, picture peg 10 passes curb plate 1 and is connected with breakwater 11, the bottom of picture peg 10 is the dirt bed, the top of picture peg 10 is fine sand layer 12, the top on fine sand layer 12 is stone layer 13, the top of curb plate 1 sets up two sets of glass boards 14, glass board 14 is convenient for the vegetation and is received illumination, can avoid external rainwater to influence the vegetation simultaneously, two sets of glass boards 14's bottom all sets up the fixed strip 15 of fore-and-aft direction, all open the spout around having in the fixed strip 15, set up slide bar 16 in it, the horizontal setting of slide bar 16 level, slide bar 16 can slide around can, the bottom of slide bar 16 evenly sets up nozzle 17, nozzle 17 is similar with the gondola water faucet, be used for simulating precipitation, can also spray insecticide simultaneously.

As shown in fig. 2, two sets of symmetrical limiting sliders 18 are slidably sleeved on the sliding rod 16, threaded holes are uniformly formed in the bottom ends of the two sets of limiting sliders 18, butterfly bolts 19 are arranged in the threaded holes, the limiting sliders 18 can be fixed by the butterfly bolts 19, the two sets of limiting sliders 18 are rotatably connected with first supporting rods 20, the first supporting rods 20 are rotatably connected with inclined blocks 21, inclined grooves 22 matched with the inclined blocks 21 are formed in the side plate 1, the inclined blocks 21 are rotatably connected with second supporting rods 23, the second supporting rods 23 are rotatably connected with the side wall of the cylindrical barrel 24, through hole grooves are uniformly formed in the bottom end of the cylindrical barrel 24, pressing rollers 25 are arranged in the through hole grooves, and when the first supporting rods 20 and the second supporting rods 23 are in a straight line, the supporting force is maximum, and the pressing rollers 25 can crush large residues, so as to facilitate tamping of soil;

as shown in fig. 3, a limiting plate 26 is arranged in an inner cavity of one side of the cylindrical barrel 24, which is close to the simulated tunnel 8, one side of the limiting plate 26, which is close to the simulated tunnel 8, is connected with a limiting rod 27, the limiting rod 27 penetrates through the cylindrical barrel 24 to be connected with a squeeze ball 28, a return spring 29 is sleeved on the limiting rod 27, a rotating motor 30 is arranged in the cylindrical barrel 24, a motor shaft of the rotating motor 30 is connected with a cam 31, the cam 31 is located at one side of the limiting plate 26, which is close to the simulated tunnel 8, the limiting plate 26 is driven to slide left and right by the rotation of the cam 31, so that the squeeze ball 28 continuously strikes soil on the outer wall of the simulated tunnel 8, and soil outside;

as shown in fig. 3, the bottom end of the extrusion ball 28 is rotatably connected with the push plate 32 through a support rod, the push plate 32 is an inclined plate, a spring is arranged between the push plate 32 and the support rod, the top end of the extrusion ball 28 is connected with the support rod, the support rod is fixedly connected with a guide rod slider 33, the guide rod slider 33 is slidably sleeved on a horizontal guide rod 34, the guide rod 34 is fixed on the side wall of the top end of the cylindrical barrel 24, the push plate 32 can push soil, so that the soil is gathered near the simulation tunnel 8, and the guide rod slider 33 and the guide rod 34 are matched with each other, so that the position of the;

as shown in fig. 4, the pressing roller 25 is divided into two parts based on a central horizontal line, wherein one part of the outer wall is uniformly and fixedly provided with a crushing blade 251, the other part of the outer wall is uniformly and fixedly provided with a pressing pad 252, the top end of the inner cavity of the cylindrical barrel 24 is provided with a fixed block 241, the bottom end of the fixed block 241 is uniformly provided with a limiting groove, a pressing spring 242 is uniformly arranged in the limiting groove, the pressing spring 242 is connected with carding plates 243, the crushing blades 251 are positioned between the two groups of carding plates 243, the crushing blade 251 is used for crushing soil and reducing the existence of large-sized blocky soil, and the carding plates 243 are used for carding residues on the crushing blades 251 to;

as shown in fig. 1, the top of two sets of bottom plates 2 evenly sets up the water blocking strip of fore-and-aft direction, and two sets of bottom plates 2 department of contacting each other all sets up the adhesive tape that blocks water, and the handing-over department of two sets of bottom plates 2 is the zigzag, and the multiunit is blocked water the strip and is used with the adhesive tape combination that blocks water for strengthen bottom plate 2's sealed effect, reduce the too much influence that causes the device of seepage.

A use method of a device for testing vegetation growth water in a tunnel influence area comprises the following steps:

s1: between the two groups of side plates 1, a soil layer, a fine sand layer 12 and a stone layer 13 are sequentially stacked from bottom to top, the boundary line of the soil layer and the fine sand layer 12 is just right on the plane where the inserting plate 10 is located, plants are sown on the stone layer 13 and are irrigated in a sprinkling mode through a nozzle 17, and the glass plate 14 can enable the plants to receive light to conduct photosynthesis, and meanwhile, the influence of external rainwater on plant growth is avoided;

s2: in-process at vegetation, it waters to last regularly fixed point, and observe different positions vegetation's state, water content is to vegetation growth's influence when breaking through with simulation tunnel, the observation finishes, when needing to carry out the experiment of organizing next, insert the spacing pipe 9 of picture peg with picture peg 10, make dirt layer and fine sand layer 12 alternate segregation, rotate hand wheel 6, drive lead screw 5 and rotate, lead screw 5 makes two sets of lead screw sliders 7 keep away from each other through the screw action, make two fan bottom plates 2 open, earth drops in pull case 4, and take out pull case 4 and take out earth, replace pull case 4, cut the vegetation on stone layer 13, take out picture peg 10, make stone and sand drop in the pull case, take out and dry, the deactivation, prevent that the grass root seed from producing the influence to next set of experiment.

S3: in the process of reloading soil and gravel, the sliding rod 16 is pushed forwards and backwards, the cylindrical barrel 24 and the press roller 25 are driven by linkage to level and compact the soil so as to simulate a hard soil environment in real life, the crushing blade 251 on the press roller 25 can loosen the soil and squeeze and tamp the soil through the press pad 252, soil blocks in the crushing blade 251 can be cleaned through the carding plate 243, when the press pad 252 rotates to be in contact with the carding plate 243, the carding plate 243 bounces upwards, the soil adhered to the carding plate 243 can be cleaned, and the self-cleaning effect is achieved;

s4: the earth of the four walls in tunnel all is through ramming, processes such as slip casting, make the earth texture of the four walls in tunnel harder, in order to simulate this condition, when leveling to soil layer, rotating electrical machines 30 drives cam 31 and rotates, cam 31 drives limiting plate 26 horizontal slip, effect through reset spring 29, make extrusion ball 28 constantly strike the outer wall surface in simulation tunnel 8, push pedal 32 can gather earth, make the earth on simulation tunnel 8 outer wall surface firmly by the compaction, ensure that the environment that simulation tunnel 8 located is close to actual environment.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.