CN114278309A - Tunnel position adjusting and positioning device in tunnel physical model - Google Patents
Tunnel position adjusting and positioning device in tunnel physical model Download PDFInfo
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- CN114278309A CN114278309A CN202111480497.8A CN202111480497A CN114278309A CN 114278309 A CN114278309 A CN 114278309A CN 202111480497 A CN202111480497 A CN 202111480497A CN 114278309 A CN114278309 A CN 114278309A
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Abstract
The invention discloses a tunnel position adjusting and positioning device in a tunnel physical model, which is used for positioning a simulated tunnel and measuring the distance between the tunnels and the edge of the tunnel. According to the tunnel position adjusting and positioning device in the tunnel physical model, the movable rotating device capable of adjusting the length and the angle at will is arranged, so that the positions of two tunnel holes with different intervals and angles can be flexibly positioned, and the experiment is more convenient; set up the anchor strut in positioner simultaneously, prevent to rotate the back angle and the skew appears, increase the position of the stability of device with accurate location tunnel, and middle removal rotary device can load and unload at any time, the demand of better adaptation experiment.
Description
Technical Field
The invention relates to a tunnel position adjusting and positioning device in a tunnel physical model.
Background
The tunnel is widely applied in the fields of water, electricity, transportation, resources and energy as ー main underground structural forms, and the safety and the stability of the tunnel are always important objects of concern in the construction stage and the operation stage. The structural characteristics of the tunnel and the structural stress characteristics of the rock mass in which the tunnel is located are key factors influencing the safety and the stability of the tunnel, and the understanding of the two factors has important theoretical value and engineering significance on the action mechanics mechanism and the engineering response mechanism of the tunnel. The physical model test is one of the important means for studying the problems related to the tunnel, and when studying the tunnel which exists in different structural stress environments or has different structural characteristics, the physical model corresponding to the tunnel needs to be prepared.
When the influence of the space of the tunnel and the tectonic stress of the rock mass on the damage characteristics and the stability of the space of the tunnel and the tectonic stress of the rock mass is researched by utilizing a tunnel physical model test, the accurate control of the position and the space of the tunnel is the key for ensuring the reliability of test data and research results. The traditional method for fixing the position of the tunnel in the physical model is to manufacture a special positioning plate to determine the angle and the distance between tunnels, but a series of problems exist: 1. firstly, it is not very firm to fix, need insert the plastic tubing earlier in the locating hole of locating plate tip when doing the experiment of pouring, can't accomplish completely fixed between plastic tubing and the locating hole, and the in-process of pouring need constantly pound peripheral cement, inevitably can cause the plastic tubing to produce certain slope, influences the accuracy of experiment. 2. The size of the positioning plate is very strict, and if the size of the positioning plate is too large, the positioning plate is often clamped in a die and cannot be pulled out in the positioning and tamping process, so that the previous work is abandoned; if it is too small, the periphery cannot be tamped and the displacement is easily caused. 3. The locating plate is disposable, if angle and distance between the tunnel change, just need make the different locating plate of polylith, these all need consume a large amount of time and economic cost. Therefore, currently, there is no effective means for realizing accurate control of the tunnel position and distance in the physical model.
In order to solve the problems, the scheme is developed accordingly.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a tunnel position adjusting and positioning device in a tunnel physical model, which solves the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a tunnel position adjustment positioner among tunnel physical model for the distance of location simulation tunnel and measurement between the tunnel and tunnel edge, including a plurality of removal rotary device, the tunnel hole as the simulation tunnel has been arranged in every removal rotary device's both ends location, remove rotary device and can remove, rotatory position that changes two adjacent tunnel holes relatively the tunnel hole, be equipped with the scale on the rotary device, can measure the angle of two adjacent tunnel holes, still include apart from adjusting the structure, its outside end that is located two tunnel holes in the outside to survey the distance of tunnel to simulation tunnel edge.
Preferably, the moving and rotating device comprises a rotating shaft, moving plates and a positioning plate, wherein the rotating shaft is arranged at the inner sides of two adjacent moving plates, the tunnel holes are positioned at the outer side ends of the moving plates, the positioning plate is arranged on the moving plates and is in sliding connection along the length direction of the moving plates, and the inner side ends of the positioning plate are in rotating connection with the rotating shaft; the upper side of rotation axis is equipped with the corner scale, the length of positioning plate and movable plate is unanimous.
Preferably, the upper and lower both sides of rotation axis have seted up the arc notch respectively, and the arc notch is intraoral to have built-in a pair of connecting block respectively, and the direction is seted up to the arc notch relatively to the connecting block and slides, and the positioning plate of one side links to each other with two connecting blocks that the upper and lower side corresponds.
Preferably, the inner side of the movable plate is connected with a reinforcing rod, the reinforcing rod comprises a first rod and a second rod, one end of the first rod is fixed with the inner side end of the movable plate, the other end of the first rod is in threaded connection with the second rod, the other end of the second rod is blocky and serves as a free end, an arc-shaped groove II is formed in the periphery of the rotating shaft, and the size of the arc-shaped groove II is matched with the inner side end of the second rod.
Preferably, the upper side and the lower side of the periphery of the tunnel hole are respectively provided with an arc-shaped notch, a fixed block and a rotating block are respectively arranged in the arc-shaped notches, the rotating block can slide relative to the opening direction of the arc-shaped notches, the moving and rotating device comprises a moving plate and a positioning plate, the positioning plate is connected to the moving plate in a sliding mode, the two moving plates are arranged at intervals, the outer side end of the moving plate is connected with the corresponding rotating block or fixed block, the moving plate can rotate relative to the tunnel hole, and the length of the positioning plate is the sum of the lengths of the two moving plates.
Preferably, the positioning plate is located at the upper end and the lower end of the moving plate, the positioning plate and the moving plate are connected in a sliding mode in which a T-shaped limiting slide rail is arranged on the moving plate, a sliding groove with a corresponding size is formed in the corresponding side of the positioning plate, and the positioning plate located above the positioning plate is provided with scale values.
Preferably, the tunnel hole and the moving plate are provided with threaded holes in the height direction, and the tunnel hole and the moving plate are in threaded connection through bolts.
Preferably, the distance adjusting structure comprises a clamping groove frame which is located at the outer side end of the tunnel holes on the two sides and is in threaded connection with the tunnel holes on the two sides, a telescopic rod is connected in the clamping groove frame in a sliding mode along the horizontal direction of the clamping groove frame, the length of the clamping groove frame is equal to that of the horizontal portion of the telescopic rod, and scales are arranged on the clamping groove frame.
Preferably, the contact surface part of the telescopic rod and the slot clamping frame is covered with a layer of coating for increasing friction force.
(III) advantageous effects
After adopting the technical scheme, compared with the prior art, the invention has the following advantages: according to the tunnel position adjusting and positioning device in the tunnel physical model, the movable rotating device capable of adjusting the length and the angle at will is arranged, so that the positions of a plurality of tunnels with different intervals and angles can be flexibly positioned, and the experiment is simpler and more convenient; set up the anchor strut in positioner simultaneously, prevent to rotate the back angle and the skew appears, improve the stability of device and with the position of accurate location tunnel, and middle removal rotary device can load and unload at any time, the demand of better adaptation experiment.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention;
FIG. 2 is a front cross-sectional view of an embodiment of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic view of a mobile rotation device according to an embodiment of the present invention;
FIG. 5 is a schematic view of a rotating shaft according to an embodiment of the present invention;
FIG. 6 is a schematic view of an improved structure of a reinforcing rod according to a first embodiment of the present invention;
FIG. 7 is a disassembled view of an experimental apparatus according to an embodiment of the present invention;
FIG. 8 is a schematic view of a second embodiment of the present invention;
fig. 9 is a schematic view of a tunnel hole structure in the second embodiment of the present invention.
In the figure: 1. moving the rotating device; 01. a rotating shaft; 02. moving the plate; 03. a positioning plate; 2. a tunnel bore; 3. turning angle scales; 4. a scale value; 5. a distance adjustment structure; 51. a slot clamping frame; 52. a telescopic rod; 6. a limiting slide rail; 7. a chute; 8. an arc-shaped notch; 9. a reinforcing rod; 91. a first rod; 92. a second rod; 10. connecting blocks; 11. a threaded bore slot; 12. an iron trough frame; 13. a tunnel; 14. a fixed block; 15. the block is rotated.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples.
Example one
As shown in fig. 1-7: the utility model provides a tunnel position control positioner in tunnel physical model, includes a plurality of removal rotary device 1, and every both ends location of removing rotary device 1 has arranged tunnel hole 2 as simulation tunnel 13, and wherein the quantity of tunnel hole 2 is set for according to the demand. The plurality of tunnel holes 2 can be arranged in a straight line or at a certain angle to complete positioning and pouring.
The structure of the mobile rotary device 1 is described as follows: the movable rotating device 1 comprises a rotating shaft 01, moving plates 02 and a positioning plate 03, wherein the rotating shaft 01 is arranged on the inner sides of the two adjacent moving plates 02, plastic pipes are positioned and arranged on the inner sides of the tunnel holes 2 and are fixed, the positioning plate 03 is arranged on the moving plates 02 and is in sliding connection along the length direction of the moving plates 02, and the inner side end of the positioning plate 03 is rotatably connected with the rotating shaft 01.
Specifically, the positioning plate 03 is located at the upper end and the lower end of the moving plate 02, the positioning plate 03 and the moving plate 02 are slidably connected in a manner that a T-shaped limiting slide rail 6 is arranged on the moving plate 02, a sliding groove 7 with a corresponding size is formed in the corresponding side of the positioning plate 03, and the positioning plate 03 can move along the length direction of the moving plate 02 without separating. Secondly, arc notch 8 has been seted up respectively to the upper and lower both sides of rotation axis 01, has set up a pair of connecting block 10 in the arc notch 8 respectively, and connecting block 10 can carry out relative arc notch 8 and set up the direction and remove, and the positioning plate 03 of one side links to each other with two connecting blocks 10 that the upper and lower side corresponds, and then drives positioning plate 03 and rotates relative rotation axis 01.
In order to enhance the stability of the mobile rotating device 1 in the test and prevent the mobile rotating device 1 from being not very firm after the angle rotation, the scheme adds the reinforcing rod 9, the length of the reinforcing rod 9 is not fixed, and the length of the moving plate 02 moving relative to the positioning plate 03 is changed.
Further, referring to fig. 6, the reinforcing rod 9 is designed such that the reinforcing rod 9 can be adapted to different lengths. The reinforcing rod 9 includes a first rod 91 and a second rod 92, wherein one end of the first rod 91 is fixed to the inner end of the moving plate 02, the other end of the first rod is in threaded connection with the second rod 92, and the other end of the second rod 92 is in a block shape and serves as a free end. An arc-shaped groove II is formed in the periphery of the rotating shaft 01, and the size of the arc-shaped groove II is matched with the inner side end of the rod II 92, so that after the included angle between the two moving plates 02 is adjusted, the rotating shaft 01 is tightly pressed and limited by the length of the rotating adjusting rod I91 and the length of the rod II 92.
The test mode for the mobile rotary device 1 is as follows: wherein, the upside of rotation axis 01 is equipped with corner scale 3, is equipped with scale interval 4 on the positioning plate 03 that is located the top, makes positioning plate 03 unanimous with the length of moving plate 02 simultaneously. When the positions (angles and intervals) of the two tunnel holes 2 are positioned, the length values of the two positioning plates 03, the radial length value of the rotating shaft 01 and the distance value of the double moving plate 02 and the rotating shaft 01 (measured by scales on the positioning plates 03) are added to obtain the interval of the two plastic pipes 2. The angle of the two tunnel holes 2 can be directly obtained by the middle parts of the two positioning plates 03 corresponding to the value of the rotating shaft 01.
The length of the two sides and the angle between the two sides are known, so that the distance between two adjacent tunnel holes 2 is indirectly calculated (the distance between two tunnels 13 is simulated).
The middle mobile rotating device 1 can be assembled and disassembled at any time according to experiment requirements, and the minimum distance and the maximum distance between tunnels can be adjusted by replacing the size of the tunnel to meet the experiment requirements (the connection mode between the tunnel hole 2 and the moving plate 02 is threaded connection of the side edge, namely, threaded hole grooves 11 are formed in the height directions of the tunnel hole 2 and the moving plate 02 to realize fixation).
The tunnel edge distance adjusting device further comprises a distance adjusting structure 5 for measuring the distance from the tunnel to the tunnel edge, the distance adjusting structure 5 comprises a clamping groove frame 51 which is located at the outer side end of the tunnel holes 2 on the two sides and is in threaded connection with the clamping groove frame, and the telescopic rod 52 is in sliding connection with the clamping groove frame 51 in the horizontal direction.
The distance from the tunnel 13 to the edge of the tunnel model (in this case, the distance from the tunnel hole 2 of the device to the inner wall of the iron trough frame 12) can be determined by adjusting the two-side telescopic rods 52. The length of the horizontal part of the slot frame 51 is equal to that of the telescopic rod 52, and scales are arranged on the slot frame 51. Thus, the distance is twice the length of the slot frame 51 minus the length of the overlap.
Furthermore, the contact surface part of the telescopic rod 52 and the card slot frame 51 is covered with a layer of coating for increasing friction force (adopting conventional anti-slip coating), so that the friction force limitation is realized, and then the telescopic rod 52 and the card slot frame are screwed down through bolts, so that the telescopic rod 52 and the card slot frame do not slide.
The innovative aspects of the present solution are further explained below by experimental perspectives, with reference to fig. 7.
The simulated tunnel 13 is formed by pouring, but the position of the hole needs to be accurately positioned in advance, so that the experimental auxiliary device is designed. The middle part of the drawing 7 is cast.
The whole pouring experiment is carried out in a die, the die is a square iron trough frame 12, and the die is removed (the iron trough frame 12) after the pouring is finished and the cement is solidified. The shaping of tunnel 13 and the definite of position realize through a hollow plastic tubing, and threaded hole groove 11 has been seted up to the side of tunnel hole 2 to carry out the thread tightening with the positioner of this scheme.
The distance from the tunnel 13 to the edge of the tunnel model is also the distance from the plastic tube to the mould.
For more precise positioning of the tunnel 13, the positioning device and the plastic tube are removed, perhaps over an hour. And then after the cement is completely solidified for four or five hours, the mold is removed again. If the plastic pipe is later disassembled, the plastic pipe and cement are solidified together, and the hole is broken due to the gap; plastic pipes tend to collapse if pulled out early (all the times that occur above are empirical times in the test).
The tunnel 13 is defined by a plastic pipe in consideration of the binding power of cement.
Example two
In the design process, the applicant further finds that the calculation method in the first embodiment is not intuitive, and specifically, the length of two side edges of the rotating shaft and the angle between the two side edges (the two side edges are specifically the sum of the extending parts of the moving plate and the positioning plate respectively) are known, so that the distance between two adjacent plastic pipes (simulating the distance between two tunnels 13) is directly calculated.
The specific improvement is as follows, referring to fig. 8-9, the rotating shaft 01 in the first embodiment is eliminated, the rotating mode of the moving plate relative to the rotating shaft is changed into the rotating mode relative to the tunnel hole 2, that is, the upper side and the lower side of the periphery of the tunnel hole 2 are respectively provided with an arc-shaped notch, a fixed block 14 and a rotating block 15 are respectively arranged in the arc-shaped notch 8, the rotating block 15 can move relative to the opening direction of the arc-shaped notch 8, the moving and rotating device comprises a moving plate 02 and a positioning plate 03, the positioning plate 03 is connected to the moving plate 02 in a sliding manner, the two moving plates 02 are arranged at intervals, the outer side end of the moving plate 02 is connected with the corresponding rotating block 15 or fixed block 14, and further the moving plate can rotate relative to the tunnel hole, and the length of the positioning plate is the sum of the lengths of the two moving plates. Wherein, the hole of the tunnel is provided with a corner scale 3.
The distance between the two moving plates, namely the distance between two adjacent tunnels 13, can be visually measured without combining a rotation angle through the sum of the lengths (known) of the two moving plates and the distance between the two moving plates of the positioning plate, so that the structure is more ingenious, and the use is more convenient.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and the protection scope must be determined by the scope of the claims.
Claims (9)
1. The utility model provides a tunnel position adjustment positioner among tunnel physical model for the location simulation tunnel with measure between the tunnel and the tunnel marginal distance, its characterized in that: including a plurality of removal rotary device, the tunnel hole as the simulation tunnel has been arranged to every removal rotary device's both ends location, remove rotary device and can remove, rotatory position that changes two adjacent tunnel holes relatively the tunnel hole, be equipped with the scale on the rotary device, can measure the angle of two adjacent tunnel holes, still include apart from adjusting the structure, its outside end that is located two tunnel holes in the outside to survey the tunnel and to the distance at simulation tunnel edge.
2. The tunnel position adjusting and positioning device in the tunnel physical model according to claim 1, wherein: the movable rotating device comprises rotating shafts, moving plates and a positioning plate, wherein the rotating shafts are arranged on the inner sides of two adjacent moving plates, the tunnel holes are positioned at the outer side ends of the moving plates, the positioning plate is arranged on the moving plates and is connected with the moving plates in a sliding mode along the length direction of the moving plates, and the inner side ends of the positioning plate are connected with the rotating shafts in a rotating mode; the upper side of rotation axis is equipped with the corner scale, the length of positioning plate and movable plate is unanimous.
3. The tunnel position adjusting and positioning device in the tunnel physical model according to claim 2, wherein: arc-shaped notches are respectively formed in the upper side and the lower side of the rotating shaft, a pair of connecting blocks are respectively arranged in the arc-shaped notches, the connecting blocks can slide relative to the arc-shaped notches in the opening direction, and the positioning plate on one side is connected with the two connecting blocks corresponding to the upper side and the lower side.
4. The tunnel position adjusting and positioning device in the tunnel physical model according to claim 2, wherein: the inner side of the movable plate is connected with a reinforcing rod, the reinforcing rod comprises a first rod and a second rod, one end of the first rod is fixed with the inner side end of the movable plate, the other end of the first rod is in threaded connection with the second rod, the other end of the second rod is blocky and serves as a free end, an arc-shaped groove II is formed in the periphery of the rotating shaft, and the size of the arc-shaped groove II is matched with the inner side end of the second rod.
5. The tunnel position adjusting and positioning device in the tunnel physical model according to claim 1, wherein: arc-shaped notches are respectively formed in the upper side and the lower side of the periphery of the tunnel hole, a fixed block and a rotating block are respectively arranged in each arc-shaped notch, each rotating block can slide relative to the corresponding arc-shaped notch in the opening direction, each moving and rotating device comprises a moving plate and a positioning plate, the positioning plates are connected to the moving plates in a sliding mode and are arranged between the two moving plates at intervals, the outer side ends of the moving plates are connected with the corresponding rotating blocks or the fixed blocks, and the length of each positioning plate is the sum of the lengths of the two moving plates.
6. The device for adjusting and positioning tunnel position in tunnel physical model according to any one of claims 2-5, wherein: the positioning plate is positioned at the upper end and the lower end of the movable plate, the movable plate is provided with a T-shaped limiting slide rail in a sliding connection mode, the corresponding side of the positioning plate is provided with a slide groove with a corresponding size, and the positioning plate positioned above the positioning plate is provided with a scale value.
7. The device for adjusting and positioning the tunnel position in the tunnel physical model according to any one of claim 1, wherein: the tunnel hole and the moving plate are provided with threaded hole grooves in the height direction, and the tunnel hole and the moving plate are in threaded connection through bolts.
8. The tunnel position adjusting and positioning device in the tunnel physical model according to claim 1, wherein: the distance adjusting structure comprises a clamping groove frame which is located at the outer side end of the tunnel holes on the two sides and is in threaded connection with the tunnel holes on the two sides, a telescopic rod is connected in the clamping groove frame in a sliding mode along the horizontal direction of the clamping groove frame, the length of the clamping groove frame is equal to that of the horizontal portion of the telescopic rod, and scales are arranged on the clamping groove frame.
9. The device for adjusting and positioning the tunnel position in the physical model of the tunnel according to claim 8, wherein: the contact surface part of the telescopic rod and the clamping groove frame is covered with a layer of coating for increasing friction force.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111480497.8A CN114278309A (en) | 2021-12-06 | 2021-12-06 | Tunnel position adjusting and positioning device in tunnel physical model |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111480497.8A CN114278309A (en) | 2021-12-06 | 2021-12-06 | Tunnel position adjusting and positioning device in tunnel physical model |
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