CN217028959U - Shallow underground excavation tunnel supporting construction that buries - Google Patents
Shallow underground excavation tunnel supporting construction that buries Download PDFInfo
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- CN217028959U CN217028959U CN202220564032.4U CN202220564032U CN217028959U CN 217028959 U CN217028959 U CN 217028959U CN 202220564032 U CN202220564032 U CN 202220564032U CN 217028959 U CN217028959 U CN 217028959U
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Abstract
The utility model relates to the technical field of tunnel supporting structures, in particular to a shallow-buried underground excavation tunnel supporting structure which comprises a bottom plate, wherein bolt holes are formed in four corners of the bottom plate, first bolts are movably arranged in the bolt holes, a bottom box is fixed in the middle section of the top wall of the bottom plate, vertical supporting columns are fixed in the four corners of the outer top wall of the bottom box, top blocks are fixed at the top ends of the four supporting columns, the top wall of each top block is arc-shaped, an arc-shaped top supporting protection plate is fixed on the top wall of each top block, the middle position of the top wall of the bottom box is rotatably connected with a vertical rotating column through a bearing, a rotating motor is arranged on the outer top wall of the bottom box, the rotating columns are in transmission connection with the rotating motor, and vertical side plates are slidably connected to two sides of the inner bottom wall of the bottom box. The method has the advantages of rigorous conception, simpler installation steps and shorter time consumption in the installation process, can improve the efficiency of the shallow-buried underground excavation tunnel construction, can stably support the inner wall of the tunnel, and has higher practicability.
Description
Technical Field
The utility model relates to the technical field of tunnel supporting structures, in particular to a shallow-buried underground excavation tunnel supporting structure.
Background
The shallow excavation method is a method for carrying out various underground cavern excavation constructions in the ground close to the ground surface. In the process of shallow-buried underground excavation method tunnel construction, in order to prevent the tunnel from collapsing, a shallow-buried underground excavation tunnel supporting structure is required to be adopted to support the inner wall of the tunnel.
The existing shallow-buried underground excavation tunnel supporting structure is heavy in installation steps, so that the installation process of the shallow-buried underground excavation tunnel supporting structure is long in time consumption, the efficiency of tunnel construction by a shallow-buried underground excavation method is influenced, and therefore the problem is solved by the shallow-buried underground excavation tunnel supporting structure.
SUMMERY OF THE UTILITY MODEL
The utility model provides a shallow-buried underground excavation tunnel supporting structure, aiming at solving the problems that the installation steps of the existing shallow-buried underground excavation tunnel supporting structure are heavy, the time consumption of the installation process of the shallow-buried underground excavation tunnel supporting structure is long, and the tunnel construction efficiency of a shallow-buried underground excavation method is influenced.
In order to achieve the purpose, the utility model provides the following technical scheme: a shallow-buried underground tunnel supporting structure comprises a bottom plate, wherein bolt holes are formed in four corners of the bottom plate, first bolts are movably arranged in the bolt holes, a bottom box is fixed to the middle section of the top wall of the bottom plate, vertical supporting columns are fixed to four corners of the outer top wall of the bottom box, top blocks are fixed to the top ends of the four supporting columns, the top wall of each top block is arc-shaped, an arc-shaped top supporting protection plate is fixed to the top wall of each top block, the middle position of the top wall of the bottom box is rotatably connected with a vertical rotating column through a bearing, a rotating motor is installed on the outer top wall of the bottom box and is in transmission connection with the rotating motor, vertical side plates are slidably connected to two sides of the inner bottom wall of the bottom box, horizontal side sleeves are fixed to side walls of two sides of the bottom box, and horizontal movable columns are fixed to side walls, which are far away from each other, of the two side plates, the two movable columns are respectively movably arranged on the inner rings of the two side sleeves, the side ends, far away from each other, of the two movable columns extend out of the side sleeves, the side ends, far away from each other, of the two movable columns are respectively fixed with a vertical side branch protection plate, the top ends of the side branch protection plates are fixedly provided with a supporting block, the side walls, close to each other, of the two side branch protection plates are respectively fixed with a vertical bottom sleeve, the inner ring of the bottom sleeve is movably provided with a second bolt, the bottom of each side plate is provided with an opening, the outer ring of the rotating column, located inside the bottom box, is provided with a thread, the outer ring of the rotating column, located inside the bottom box, is sleeved with a vertical supporting sleeve, the outer ring of the supporting sleeve is fixedly sleeved with a horizontal supporting plate, the supporting plate is movably arranged inside the two openings, the supporting plate is slidably connected to the inner side wall of the bottom box, and the side walls, close to each side plate, are hinged with supporting shafts which are obliquely arranged, the bottom end of the supporting shaft is hinged to the top wall of the supporting plate.
As a preferable technical solution of the present invention, the length of the top support protection plate is greater than the distance between the side walls of the two side support protection plates, the bottom ends of the side support protection plates are flush with the bottom end of the bottom plate, and the bottom end of the bottom sleeve is flush with the bottom end of the bottom plate.
As a preferable technical scheme of the utility model, the top end of the supporting block is flush with the bottom end of the top supporting and protecting plate.
As a preferable technical solution of the present invention, a first gear is fixed to an output end of the rotating motor, a second gear is fixed to a top end of the rotating column, and the first gear is in meshed connection with the second gear.
As a preferable technical scheme of the utility model, the inner side walls of the two sides of the bottom box are respectively provided with a first sliding chute along the height direction, the side ends of the two sides of the supporting plate are respectively fixed with a first sliding block, and the first sliding blocks are connected with the first sliding chutes in a sliding manner.
As a preferred technical scheme of the present invention, the two sides of the inner bottom wall of the bottom case are both provided with second sliding grooves along the length direction, the bottom end of the side plate is fixed with a second sliding block, the second sliding block is connected with the second sliding grooves in a sliding manner, the two sides of the inner top wall of the bottom case are both provided with third sliding grooves along the length direction, the top end of the side plate is fixed with a third sliding block, and the third sliding block is connected with the third sliding grooves in a sliding manner.
As a preferable technical solution of the present invention, the size of the inner ring of the side cover is adapted to the size of the outer ring of the movable column.
As a preferable technical scheme of the utility model, the two support shafts are respectively positioned at two sides of the support sleeve, the two support shafts are symmetrically arranged, and the distance between the top ends of the two support shafts is larger than the distance between the bottom ends of the two support shafts.
Compared with the prior art, the utility model has the beneficial effects that:
(1) when the shallow-buried underground tunnel supporting structure needs to be installed, the second bolt is firstly taken down, then the middle section of the inner bottom wall of the tunnel is supported by the bottom plate, the bottom plate is stably fixed on the inner bottom wall of the tunnel by the first bolt, the outer ring of the top support guard plate can be contacted with the inner top wall of the tunnel, then the operation of the rotating motor is carried out until the side walls of the two side support guard plates which are far away from each other are respectively contacted with the inner side walls of the two sides of the tunnel, the top ends of the two supporting blocks are respectively contacted with the two sides of the bottom end of the top supporting guard plate, the bottom sleeve is stably fixed on the inner bottom wall of the tunnel through the second bolt, the installation of the shallow-buried underground excavation tunnel supporting structure can be finished, so that the installation steps of the shallow-buried underground excavation tunnel supporting structure are simpler, make shallow installation process of burying undercut tunnel supporting construction consuming time shorter, can promote shallow efficiency of burying undercut method tunnel construction.
(2) Through first bolt with the bottom plate stable be fixed in on the interior diapire in tunnel, can be to the under casing, the support column, kicking block and top backplate realize stable fixed, the top through two supporting shoes respectively with the both sides contact of the bottom of top backplate, can be through the stable support top backplate of two supporting shoes, can make the interior roof in the stable support tunnel of top backplate, through the second bolt with the stable interior diapire that is fixed in the tunnel of end cover on, can realize stable fixed to collateral branch backplate and supporting shoe, can make the inside wall of the stable both sides in support tunnel of two collateral branch backplates, can make the shallow inner wall that buries the support tunnel that the tunnel supporting construction can be stable of secretly digging, make the shallow practicality that buries the tunnel supporting construction that secretly digs higher.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
fig. 4 is a bottom view of the bottom plate of the present invention.
Description of the reference numerals:
1. a base plate; 2. a first bolt; 3. a bottom box; 4. side sleeves; 5. a movable post; 6. side branch guard plates; 7. a bottom cover; 8. a second bolt; 9. a supporting block; 10. a support pillar; 11. rotating the motor; 12. a first gear; 13. a second gear; 14. rotating the column; 15. a top block; 16. supporting the guard plate; 17. a side plate; 18. opening a hole; 19. a support shaft; 20. a support plate; 21. and a support sleeve.
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 shallow-buried underground tunnel supporting structure comprises a bottom plate 1, bolt holes are formed in four corners of the bottom plate 1, first bolts 2 are movably arranged in the bolt holes, a bottom box 3 is fixed in the middle of the top wall of the bottom plate 1, vertical support columns 10 are fixed in four corners of the outer top wall of the bottom box 3, top blocks 15 are fixed at the top ends of the four support columns 10, the top wall of each top block 15 is arc-shaped, an arc-shaped top support protection plate 16 is fixed on the top wall of each top block 15, the radian of the outer ring of the top of each top support protection plate 16 is matched with the size of the inner top wall of a tunnel, a vertical rotating column 14 is rotatably connected to the middle position of the top wall of the bottom box 3 through a bearing, a rotating motor 11 is installed on the outer top wall of the bottom box 3, the rotating motor 11 adopts a band-type brake stepping motor, and the controller of the rotating motor 11 can control the forward operation or reverse operation of the rotating motor 11, the rotating column 14 is in transmission connection with a rotating motor 11, two sides of the inner bottom wall of the bottom box 3 are both in sliding connection with vertical side plates 17, horizontal side sleeves 4 are fixed on the side walls of the two sides of the bottom box 3, horizontal movable columns 5 are fixed on the side walls of the two side plates 17 far away from each other, the two movable columns 5 are respectively movably arranged at the inner rings of the two side sleeves 4, the side ends of the two movable columns 5 far away from each other extend out of the side sleeves 4, the side ends of the two movable columns 5 far away from each other are respectively fixed with a vertical side protection plate 6, the top end of the side protection plate 6 is fixed with a supporting block 9, the side walls of the two side protection plates 6 close to each other are respectively fixed with a vertical bottom sleeve 7, a second bolt 8 is movably arranged at the inner ring of the bottom sleeve 7, an opening 18 is formed at the bottom of the side plate 17, the outer ring of the rotating column 14 inside the bottom box 3 is provided with threads, the outer ring of the rotating column 14 inside the bottom box 3 is provided with vertical supporting sleeves 21 in a threaded sleeve cover manner, the fixed cover in outer lane of supporting sleeve 21 is equipped with horizontally backup pad 20, and the inside of two trompils 18 is located in the activity of backup pad 20, and backup pad 20 sliding connection all articulates on the lateral wall that two curb plates 17 are close to each other on the inside wall of under casing 3 has the back shaft 19 that is the slope and sets up, and the top of back shaft 19 is higher than the top of trompil 18, and the bottom of back shaft 19 articulates on the roof of backup pad 20.
The length of the top supporting protection plate 16 is greater than the distance between the side walls of the two side supporting protection plates 6 which are far away from each other, the distance between the side ends of the two supporting blocks 9 which are far away from each other is the same as the distance between the side walls of the two side supporting protection plates 6 which are far away from each other, the bottom ends of the side supporting protection plates 6 are flush with the bottom end of the bottom plate 1, and the bottom end of the bottom sleeve 7 is flush with the bottom end of the bottom plate 1.
The top end of the support block 9 is flush with the bottom end of the top support guard 16 so that the top end of the support block 9 can contact the bottom end of the top support guard 16.
The output end of the rotating motor 11 is fixed with a first gear 12, the top end of the rotating column 14 is fixed with a second gear 13, the first gear 12 is meshed with the second gear 13, the first gear 12 can be driven to rotate through the operation of the rotating motor 11, and the rotating column 14 can be driven to rotate through the transmission of the first gear 12 and the second gear 13.
All seted up first spout along the direction of height on the inside wall of the both sides of under casing 3, the side of the both sides of backup pad 20 all is fixed with first slider, and first slider slides with first spout and is connected for support cover 21 and the lift that backup pad 20 can be stable.
The second spout has all been seted up along length direction in the both sides of the interior diapire of under casing 3, the bottom mounting of curb plate 17 has the second slider, the second slider slides with the second spout and is connected, the third spout has all been seted up along length direction in the both sides of the interior roof of under casing 3, the top of curb plate 17 is fixed with the third slider, the third slider slides with the third spout and is connected, the size of the inner circle of side cover 4 and the size looks adaptation of the outer lane of activity post 5, make curb plate 17, the removal of horizontal direction of following that activity post 5 and collateral branch backplate 6 can be stable.
The two supporting shafts 19 are respectively positioned at two sides of the supporting sleeve 21, the two supporting shafts 19 are symmetrically arranged, the distance between the top ends of the two supporting shafts 19 is larger than the distance between the bottom ends of the two supporting shafts 19, the rotating column 14 can be driven to rotate by rotating the forward operation of the motor 11, the supporting sleeve 21 and the supporting plate 20 can be lifted by the thread transmission of the rotating column 14 and the supporting sleeve 21, the bottom ends of the two supporting shafts 19 can be lifted, the top ends of the two supporting shafts 19 can drive the two side plates 17 to be away from each other, the two movable columns 5 can drive the two side branch protection plates 6 to be away from each other, the two supporting blocks 9 can be kept away from each other, the rotating column 14 can be driven to rotate by the reverse operation of the rotating motor 11, the supporting sleeve 21 and the supporting plate 20 can be lowered by the thread transmission of the rotating column 14 and the supporting sleeve 21, and the bottom ends of the two supporting shafts 19 can be lowered, the top end of the two supporting shafts 19 can drive the two side plates 17 to be close to each other, so that the two movable columns 5 can drive the two side supporting plates 6 to be close to each other, and the two supporting blocks 9 can be close to each other.
The working principle is as follows: when a shallow-buried underground tunnel supporting structure needs to be installed, the second bolt 8 is taken down firstly, then the bottom plate 1 is supported at the middle section of the inner bottom wall of the tunnel, the bottom plate 1 is stably fixed on the inner bottom wall of the tunnel through the first bolt 2, the outer ring of the top supporting protective plate 16 can be contacted with the inner top wall of the tunnel, the top supporting protective plate 16 can be enabled to support the inner top wall of the tunnel, then the rotating column 14 can be driven to rotate through the forward operation of the rotating motor 11, the supporting sleeve 21 and the supporting plate 20 can be lifted through the threaded transmission of the rotating column 14 and the supporting sleeve 21, the bottom ends of the two supporting shafts 19 can be lifted, the top ends of the two supporting shafts 19 can drive the two side plates 17 to be away from each other, the two movable columns 5 can drive the two side supporting plates 6 to be away from each other, the two supporting blocks 9 can be kept away from each other until the side walls, which are kept away from each other, of the two side supporting plates 6 are respectively contacted with the inner side walls at the two sides of the tunnel, the top ends of the two supporting blocks 9 can be respectively contacted with two sides of the bottom end of the top supporting protection plate 16, the bottom sleeve 7 is stably fixed on the inner bottom wall of the tunnel through the second bolt 8, the two side supporting protection plates 6 can respectively support the inner side walls of two sides of the tunnel, and the shallow-buried and undercut tunnel supporting structure can be installed, so that the installation steps of the shallow-buried and undercut tunnel supporting structure are simpler, the time consumption of the installation process of the shallow-buried and undercut tunnel supporting structure is shorter, and the efficiency of tunnel construction by a shallow-buried and undercut method can be improved; through first bolt 2 with bottom plate 1 stable be fixed in on the interior diapire in tunnel, can be to under casing 3, support column 10, kicking block 15 and the stable fixed of top backplate 16 realization, the top through two supporting shoe 9 respectively with the both sides contact of the bottom of the backplate 16 is propped up to the top, can be through the stable support top backplate 16 of two supporting shoe 9, can make the interior roof in the stable support tunnel of top backplate 16, through second bolt 8 with the stable interior diapire that is fixed in the tunnel of end cover 7 on, can realize stable fixed to collateral branch backplate 6 and supporting shoe 9, can make the inside wall of the stable both sides in support tunnel of two collateral branch backplate 6, can make the shallow inner wall that buries the support tunnel that the tunnel supporting structure can be stable of secretly digging, make the shallow practicality that buries the tunnel supporting structure of secretly digging higher.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a shallow excavation tunnel supporting construction that buries, includes bottom plate (1), its characterized in that: the four corners of the bottom plate (1) are all provided with bolt holes, the inner part of each bolt hole is movably provided with a first bolt (2), the middle section of the top wall of the bottom plate (1) is fixed with a bottom box (3), the four corners of the outer top wall of the bottom box (3) are all fixed with vertical supporting columns (10), the top ends of the four supporting columns (10) are fixed with ejector blocks (15), the top wall of each ejector block (15) is arc-shaped, the top wall of each ejector block (15) is fixed with an arc-shaped top supporting protective plate (16), the middle position of the top wall of the bottom box (3) is rotatably connected with a vertical rotating column (14) through a bearing, the outer top wall of the bottom box (3) is provided with a rotating motor (11), the rotating column (14) is in transmission connection with the rotating motor (11), and the two sides of the inner bottom wall of the bottom box (3) are both slidably connected with vertical side plates (17), the side walls of two sides of the bottom box (3) are respectively fixed with a horizontal side sleeve (4), the side walls of two side plates (17) far away from each other are respectively fixed with a horizontal movable column (5), the two movable columns (5) are respectively movably arranged at the inner rings of the two side sleeves (4), the side ends of the two movable columns (5) far away from each other extend out of the side sleeves (4), the side ends of the two movable columns (5) far away from each other are respectively fixed with a vertical side branch guard plate (6), the top ends of the side branch guard plates (6) are respectively fixed with a supporting block (9), the side walls of the two side branch guard plates (6) close to each other are respectively fixed with a vertical bottom sleeve (7), the inner rings of the bottom sleeves (7) are movably provided with second bolts (8), the bottoms of the side plates (17) are provided with openings (18), the outer rings of the rotating columns (14) positioned in the bottom box (3) are provided with threads, the outer ring thread cover that is located under casing (3) inside rotates post (14) is equipped with vertical support cover (21), the fixed cover in outer lane of supporting cover (21) is equipped with horizontally backup pad (20), backup pad (20) activity is located two the inside of trompil (18), backup pad (20) sliding connection in on the inside wall of under casing (3), two all articulate on the lateral wall that curb plate (17) are close to each other and have back shaft (19) that are the slope setting, the bottom of back shaft (19) articulate in on the roof of backup pad (20).
2. The shallow-buried undercut tunnel supporting structure of claim 1, wherein: the length of the top supporting protection plate (16) is larger than the distance between the side walls, far away from each other, of the side supporting protection plates (6), the bottom ends of the side supporting protection plates (6) are flush with the bottom end of the bottom plate (1), and the bottom end of the bottom sleeve (7) is flush with the bottom end of the bottom plate (1).
3. The shallow-buried undercut tunnel supporting structure of claim 1, wherein: the top end of the supporting block (9) is flush with the bottom end of the top supporting protection plate (16).
4. The shallow-buried undercut tunnel supporting construction of claim 1, characterized in that: the output end of the rotating motor (11) is fixed with a first gear (12), the top end of the rotating column (14) is fixed with a second gear (13), and the first gear (12) is meshed with the second gear (13).
5. The shallow-buried undercut tunnel supporting construction of claim 1, characterized in that: first chutes are formed in the inner side walls of the two sides of the bottom box (3) along the height direction, first sliding blocks are fixed to the side ends of the two sides of the supporting plate (20), and the first sliding blocks are connected with the first chutes in a sliding mode.
6. The shallow-buried undercut tunnel supporting structure of claim 1, wherein: the second spout has all been seted up along length direction in the both sides of the interior diapire of under casing (3), the bottom mounting of curb plate (17) has the second slider, and the second slider slides with the second spout to be connected, the third spout has all been seted up along length direction in the both sides of the interior roof of under casing (3), the top of curb plate (17) is fixed with the third slider, and the third slider slides with the third spout and is connected.
7. The shallow-buried undercut tunnel supporting construction of claim 1, characterized in that: the size of the inner ring of the side sleeve (4) is matched with the size of the outer ring of the movable column (5).
8. The shallow-buried undercut tunnel supporting structure of claim 1, wherein: the two support shafts (19) are respectively positioned on two sides of the support sleeve (21), the two support shafts (19) are symmetrically arranged, and the distance between the top ends of the two support shafts (19) is larger than the distance between the bottom ends of the two support shafts (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220564032.4U CN217028959U (en) | 2022-03-15 | 2022-03-15 | Shallow underground excavation tunnel supporting construction that buries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220564032.4U CN217028959U (en) | 2022-03-15 | 2022-03-15 | Shallow underground excavation tunnel supporting construction that buries |
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| CN217028959U true CN217028959U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220564032.4U Active CN217028959U (en) | 2022-03-15 | 2022-03-15 | Shallow underground excavation tunnel supporting construction that buries |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117307215A (en) * | 2023-11-28 | 2023-12-29 | 北京市市政四建设工程有限责任公司 | Support structure for undercut tunnel |
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2022
- 2022-03-15 CN CN202220564032.4U patent/CN217028959U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117307215A (en) * | 2023-11-28 | 2023-12-29 | 北京市市政四建设工程有限责任公司 | Support structure for undercut tunnel |
| CN117307215B (en) * | 2023-11-28 | 2024-01-30 | 北京市市政四建设工程有限责任公司 | Support structure for undercut tunnel |
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