CN117230816A - Protection device for tunnel portal high steep side slope - Google Patents
Protection device for tunnel portal high steep side slope Download PDFInfo
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- CN117230816A CN117230816A CN202311413035.3A CN202311413035A CN117230816A CN 117230816 A CN117230816 A CN 117230816A CN 202311413035 A CN202311413035 A CN 202311413035A CN 117230816 A CN117230816 A CN 117230816A
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- rod piece
- plate
- embedded
- side slope
- anchor
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- 239000002689 soil Substances 0.000 claims abstract description 55
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 43
- 238000004873 anchoring Methods 0.000 claims abstract description 41
- 230000001681 protective effect Effects 0.000 claims abstract description 35
- 230000002787 reinforcement Effects 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 230000035515 penetration Effects 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims 1
- 230000001012 protector Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 11
- 238000009434 installation Methods 0.000 description 10
- 239000004746 geotextile Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000002633 protecting effect Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The application provides a protection device for a high-steep side slope of a tunnel portal, which comprises a protection net, a plurality of groups of anchoring mechanisms for fixing the protection net on the side slope and a reinforcing plate connected between every two adjacent anchoring mechanisms, wherein each group of anchoring mechanisms is respectively arranged at each corner position of the protection net; the anchoring mechanism comprises an embedded anchor seat and an anchor rod piece, wherein the embedded anchor seat is embedded in the slope soil in advance, the anchor rod piece is fixed to the embedded anchor seat, the anchor rod piece and the embedded anchor seat jointly clamp and fix the protective net, and the anchor rod piece penetrates through the embedded anchor seat and is anchored in the slope soil; the reinforcement plate is connected between the adjacent embedded anchor seats, positioning nails are arranged on the side faces of the reinforcement plate, penetrate through the protective net and are anchored in the soil of the side slope. Based on the integral anchoring system, the reinforcing plate, the embedded anchor seat and the anchor rod piece jointly form the protective net, and when the local part is loosened, the integral anchoring system is less affected, so that the protective net can keep good protective capability.
Description
Technical Field
The application relates to the technical field of side slope protection, in particular to a protection device for a high and steep side slope of a tunnel portal.
Background
The tunnel is a building which is built in mountain bodies, paved with railways or built on roads for motor vehicles to pass, and for some mountain bodies with steep topography, the slope at the position of the tunnel portal after the tunnel is built is relatively high and steep, the risk of potential safety hazard caused by falling rocks and falling exists, and mine slope protection measures need to be adopted. The tunnel portal slope protection device is arranged on the slope for ensuring the safety of the slope and the surrounding environment.
The existing reinforcing and protecting device generally adopts a protecting net, the protecting net is covered on the surface of a side slope, and then the protecting net is installed and fixed through an anchor rod so as to play a protecting effect; however, for the steep slope with high topography, the anchor rod is easy to loosen or even separate from the slope soil after the surface of the slope is washed out by rain and water and soil is lost, so that the protection effect of the protection net is weakened or even lost, and potential safety hazards still exist.
Disclosure of Invention
In order to enable the protection net to keep good protection capability, the application provides a protection device for a high and steep side slope of a tunnel portal.
The application provides a protection device for a high steep side slope at a tunnel portal, which adopts the following technical scheme:
the utility model provides a protection device of high steep side slope of tunnel portal, includes protection network, is used for fixing the protection network in the multiunit anchor mechanism of side slope and connects the reinforcement plate between every two adjacent anchor mechanisms, and each anchor mechanism of group sets up in each corner position of protection network respectively;
the anchoring mechanism comprises an embedded anchor seat and an anchor rod piece, wherein the embedded anchor seat is embedded in the slope soil in advance, the anchor rod piece is fixed to the embedded anchor seat, the anchor rod piece and the embedded anchor seat jointly clamp and fix the protective net, and the anchor rod piece penetrates through the embedded anchor seat and is anchored in the slope soil;
the reinforcement plate is connected between the adjacent embedded anchor seats, positioning nails are arranged on the side faces of the reinforcement plate, penetrate through the protective net and are anchored in the soil of the side slope.
By adopting the technical scheme, a plurality of embedded anchor seats are arranged on the high-steep side slope outside the tunnel portal in an embedded manner, and after the protection net is paved on the surface of the side slope, the embedded anchor seats are positioned at the corner positions of the protection net; the locating nails of the reinforcing plate penetrate through the grid gaps of the protective net, two side ends of the reinforcing plate are respectively connected with adjacent embedded anchor seats, and the reinforcing plate can anchor the corner positions of the protective net on the side slope. Finally, the anchor rod piece is inserted into the embedded anchor seat, the anchor rod piece can play an anchoring and reinforcing role on the corner position of the protective net, and then the integral anchoring system of the protective net is formed, when water and soil flow occurs to the local side slope soil, the anchoring mechanism at the local position or the positioning nail at the local position is loosened, the influence on the integral anchoring system is small, and the protective net can still maintain good protective capability.
Optionally, the embedded anchor seat is provided with an axially through cavity, the peripheral surface of the embedded anchor seat is provided with a plurality of mounting grooves communicated with the cavity, and each mounting groove is movably provided with a pushing piece;
the end part of the pushing piece is provided with an abutting part, and in the initial state, each pushing piece is retracted into the mounting groove, and at the moment, each abutting part is mutually abutted to form a penetration area for the tip of the anchor rod piece to penetrate through; the anchor rod piece is inserted into the cavity, when the anchor rod piece enters the cavity, the anchor rod piece enters the cross-connection area and forces each abutting part to be far away from each other, and finally each pushing piece is inserted into the soil of the side slope.
Through adopting foretell technical scheme, through inserting the stock spare in the cavity of pre-buried anchor seat, the tip of stock spare gets into the cross-under area, supports after each butt portion, continues to force stock spare inwards to remove, and stock spare can jack up each butt portion, and then forces each pushing away in the soil of pushing away the piece and inserting the pre-buried anchor seat outside, can play the effect of anchoring reinforcement, the anchor intensity between reinforcing anchoring mechanism and the side slope soil reduces pre-buried anchor seat or stock spare and appears becoming flexible or unexpected possibility that drops.
Optionally, the outer peripheral surface of the anchor rod piece is provided with a guide block, and the inner wall of the cavity is provided with a guide groove which is matched with the guide block in a sliding way; the guide groove comprises a straight line section and an arc line section which are communicated with each other, the extension direction of the straight line section is the same as the axial direction of the cavity, and the arc line section spirally extends along the axial direction of the cavity;
the top of the guide block is provided with an elastic component, and when the guide block is positioned on the straight line section, the elastic component is opposite to the gap between the two abutting parts; when the guide block is positioned on the arc section, the elastic component is propped against the lower end face of the propping part; and a reinforcing component for reinforcing the anchoring stress is also arranged between the anchor rod piece and the embedded anchor seat.
By adopting the technical scheme, when the anchor rod piece is inserted into the cavity of the embedded anchor seat, the guide block finally enters the arc section along the straight line section, so that the anchor rod piece can deflect at a certain angle, and the elastic component can automatically abut against the lower end face of the abutting part; at this moment, the elastic component can produce the elastic force that acts on the anchor member, and then plays vibrations when the vehicle shakes through tunnel, side slope and weakens the effect to change the rigid connection of anchor member into elastic connection, can play elastic buffering's effect when the side slope grit is piled up in the protection network, further reduce the possibility that the corner position of protection network appears becoming flexible or breaks away from.
Optionally, the reinforcing components are provided with a plurality of groups, and all the reinforcing components are uniformly distributed along the outer peripheral surface of the anchor rod piece; the reinforcing component comprises a rotating rod piece and a telescopic arm group, wherein the rotating rod piece is rotationally connected with the anchor rod piece, the telescopic arm group is arranged at the end part of the embedded anchor seat, and a torsion spring is arranged at the rotating connection part of the rotating rod piece and the anchor rod piece and used for forcing the rotating rod piece to be arranged at an angle with the anchor rod piece in a normal state;
when the anchor rod piece is inserted into the cavity and the guide block is positioned on the arc section, the rotary rod piece is positioned on one side of the embedded anchor seat, which is far away from the protective net; when the anchor rod piece is forced to move outwards, the rotary rod piece can prop against the embedded anchor seat to deflect outwards, and the telescopic arm group is forced to extend outwards.
By adopting the technical scheme, when the anchor rod piece is forced to move upwards and the elastic component abuts against the abutting part, the anchor rod piece of the reinforcing component moves upwards to abut against the end surface of the embedded anchor seat through the reinforcing component, so that the anchor rod piece can naturally rotate outwards; finally, the anchor rod piece enters the telescopic arm group and forces the telescopic arm group to extend outwards, so that the anchoring strength between the embedded anchor seat and the soil of the side slope can be further enhanced, and the possibility that the corner position of the protective net is loosened or separated is further reduced.
Optionally, the telescopic arm group comprises a fixed arm plate fixed on the outer peripheral surface of the embedded anchor seat and a movable arm plate movably connected with the fixed arm plate, and an extension spring is arranged between the movable arm plate and the fixed arm plate and used for forcing the movable arm plate to move towards the direction close to the fixed arm plate; in the initial state, a movable area is formed between the movable arm plate and the fixed arm plate, and when the rotary rod piece abuts against the embedded anchor seat, the rotary rod piece enters the movable area to force the movable arm plate to move in a direction away from the fixed arm plate.
Through adopting foretell technical scheme, extension spring's setting can keep the expansion arm board to being close to the direction removal of fixed arm board, when protection network atress, forcing stock piece outwards to remove, rotate the member and support in pre-buried anchor pad and outwards deflect, can get into the activity region that forms between expansion arm board and the fixed arm board to at the in-process of rotating the member outwards deflection gradually forcing the expansion arm board to the direction removal of keeping away from the fixed arm board, finally make the expansion arm board insert and locate in the side slope soil. Therefore, the larger the acting force of the protection net is, the stronger the acting force of the rotating rod piece on the movable arm plate is, so that the anchoring strength of the anchoring mechanism can be further enhanced when the soil on the side slope is lost and is accumulated on the protection net, and the possibility that the corner position of the protection net is loosened or separated is reduced.
Optionally, the telescopic arm group is arranged in a downward inclined manner along a direction away from the central axis of the embedded anchor seat.
Through adopting foretell technical scheme, through making flexible arm group downward sloping, the dwang forces the expansion arm board to the direction removal back of keeping away from the fixed arm board, and the expansion arm board can downward sloping insert side slope soil, increases the anchor degree of depth, and then plays the effect of strengthening the anchor.
Optionally, the pushing member is disposed obliquely upward in a direction away from the central axis of the cavity.
By adopting the technical scheme, through making the pushing parts tilt upwards, the pushing parts can be retracted into the mounting groove in a natural state, and the abutting parts are mutually abutted to form a penetration area together, so that the embedded anchor seat can be smoothly embedded in the slope soil.
Optionally, a connecting section is arranged on the peripheral surface of the embedded anchor seat, and when the embedded anchor seat is embedded in the slope soil, the connecting section is propped against the surface of the slope; the reinforcement plate is provided with a kidney-shaped hole, the connecting section is rotationally connected with a locking piece, the end part of the locking piece is provided with a locking plate, and a positioning area for positioning the reinforcement plate is formed by arranging the locking plate and the connecting section at intervals.
By adopting the technical scheme, when the reinforcement plate is installed, the lock plate and the kidney-shaped hole are kept parallel in the length direction, the lock plate and the kidney-shaped hole are arranged opposite to each other, the reinforcement plate is anchored in the soil of the side slope, and the lock plate can smoothly pass through the kidney-shaped hole; and finally, the locking piece is rotated, so that the length direction of the locking plate is kept vertical to the length direction of the strip-shaped hole, and the reinforcing plate can be firmly fixed in the positioning area at the moment so as to realize quick connection between the reinforcing plate and the embedded anchor.
Optionally, an elastic cushion is arranged on the back surface of the reinforcement plate, a first tooth-shaped part is arranged on the surface of the reinforcement plate, and the first tooth-shaped part is positioned outside the kidney-shaped hole; the side of the lock plate, which is close to the connecting section, is provided with a second tooth-shaped part, and when the length direction of the lock plate is perpendicular to the length direction of the kidney-shaped hole, the first tooth-shaped part is engaged with the second tooth-shaped part in a matching way.
By adopting the technical scheme, the elastic soft cushion is arranged, so that elastic activity allowance exists between the reinforcing plate and the slope soil, an elastic buffering effect can be achieved when the slope sand and stones are accumulated on the protective net, and the possibility of deformation and even local fracture of the protective net is reduced; in addition, when the reinforcement plate is installed in the connecting section, through the interlock between first profile of tooth portion and the second profile of tooth portion in order to realize the cooperation location between locking plate and the reinforcement plate, can reduce the unexpected possibility that breaks away from of reinforcement plate when being convenient for consolidate the plate installation, make the protection network keep good side slope protection effect.
Optionally, the device further comprises a pre-buried water guide plate which is buried in the side slope soil in advance, wherein the pre-buried water guide plate is provided with perforations, and the positioning nails sequentially penetrate through the protective net and the perforations and then are anchored in the side slope soil;
the embedded water guide plate is provided with a water permeable structure, the water permeable structure comprises a water permeable groove formed in the top of the embedded water guide plate and geotextile covering the water permeable groove, a green cultivation block is arranged inside the embedded water guide plate in a erected mode, and a preformed hole for the root system of the green cultivation block to pass through is formed in the side face of the embedded water guide plate.
By adopting the technical scheme, the arrangement of the embedded water guide plate can form a drainage structure in the side slope, so that the condition that rainwater permeates into and is deposited in the side slope soil when the rainy weather is met is reduced, and the possibility of water, soil and running water of the side slope is reduced. Specifically, rainwater in the side slope soil permeates downwards into the embedded water guide plate through the permeable slot, geotextile can play a role in soil isolation, and the condition that the inside of the embedded water guide plate is blocked is reduced; the green cultivation blocks cultivated in the embedded water guide plate smoothly grow after water drawing, and the root system of the green cultivation blocks can be rooted in the slope soil through the reserved holes, so that the anchoring effect of the embedded water guide plate can be enhanced, and the normal use of the drainage structure in the slope is ensured.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the integral anchoring system of the protective net is formed by the reinforcing plate, the embedded anchor seat and the anchor rod piece together, and when the local part is loosened, the influence on the integral anchoring system is small, so that the protective net can keep good protective capability;
2. by arranging the pushing pieces, after the anchor rod pieces are inserted into the cavity of the embedded anchor seat, each pushing piece can be forced to move outwards and be inserted into the soil outside the embedded anchor seat, so that the anchor strength between the anchoring mechanism and the soil of the side slope is enhanced, and the possibility that the embedded anchor seat or the anchor rod pieces are loosened or accidentally dropped is reduced;
3. through setting up the enhancement subassembly, pile up in side slope soil and when outwards deflecting with protection network, stock spare atress, rotate the member and can support in pre-buried anchor pad and outwards deflect to force the expansion arm board to keeping away from the direction removal of fixed arm board, the final slope of expansion arm board is inserted downwards and is located side slope soil, can further strengthen anchor mechanism's anchor intensity, reduces the possibility that the corner position of protection network appears becoming flexible or breaks away from.
Drawings
FIG. 1 is a schematic view showing the whole structure of the protection device of the present embodiment;
FIG. 2 is a schematic view of the structure of the pre-buried anchor in the present embodiment;
FIG. 3 is a schematic view of the structure of the pre-buried water guide plate in the present embodiment;
FIG. 4 is a partial cross-sectional view of the pre-buried water guide plate in this embodiment;
FIG. 5 is a schematic view of the structure of the reinforcing plate member according to the present embodiment when the reinforcing plate member is mounted on the pre-buried water guide plate;
FIG. 6 is an enlarged view at A in FIG. 5;
FIG. 7 is a half cross-sectional view of the pre-buried anchor of the present embodiment;
FIG. 8 is a schematic view of the structure of an anchor member in this embodiment;
FIG. 9 is a schematic view of the structure of the anchor rod member of the present embodiment after being inserted into the cavity of the embedded anchor;
fig. 10 is an enlarged view at B in fig. 5.
Reference numerals illustrate: 1. a protective net; 2. embedding an anchor seat; 21. a cavity; 22. a pushing member; 221. an abutting portion; 23. a mounting groove; 24. a guide groove; 241. a straight line segment; 242. an arc segment; 25. a connection section; 26. a locking member; 261. a lock plate; 262. a second tooth-shaped portion; 3. an anchor rod piece; 31. a guide block; 32. an elastic component; 321. a hard spring; 322. a bearing block; 33. a cover body; 4. reinforcing the plate; 41. waist-shaped holes; 42. a first tooth-shaped portion; 43. positioning nails;
5. pre-burying a water guide plate; 51. a first plate body; 52. a second plate body; 521. a water-permeable tank; 522. geotextile; 53. a third plate body; 531. positioning columns; 54. a fourth plate body; 55. a fifth plate body; 56. steel net rack; 57. green cultivation blocks; 58. perforating; 6. a reinforcement assembly; 61. rotating the rod piece; 62. a torsion spring; 63. a telescopic arm set; 64. fixing the arm plate; 641. a bar-shaped hole; 65. a movable arm plate; 651. a connecting piece; 652. an inclined surface; 66. and (5) stretching the spring.
Detailed Description
The application is described in further detail below with reference to fig. 1-10.
The embodiment of the application discloses a protection device for a high steep side slope of a tunnel portal.
Referring to fig. 1, a protection device for a high steep side slope at a tunnel portal includes a protection net 1, multiple groups of anchoring mechanisms, multiple reinforcing plates 4 and multiple pre-buried water guide plates 5, where the multiple protection nets 1 are sequentially laid on the surface of the side slope in the specific supporting process of the protection device, and the protection device for fixing the protection net 1 has the same structure, and this embodiment illustrates the installation of a single protection net 1 as an example.
The protection net 1 is of a rectangular structure, the number of the anchoring mechanisms is four, and the four groups of the anchoring mechanisms are respectively arranged at four corner positions of the protection net 1 and used for anchoring the protection net 1 to a side slope. Specifically, the anchoring mechanism comprises an embedded anchor seat 2 and an anchor rod piece 3; referring to fig. 2, the embedded anchor 2 is of a cylindrical structure, the embedded anchor 2 is provided with a cavity 21 for inserting an anchor, and the cavity 21 penetrates through two ends of the embedded anchor 2 along the axial direction of the embedded anchor 2. In the concrete construction, the installation holes are required to be pre-dug on the surface of the side slope, and the pre-buried anchor seat 2 is installed in the installation holes before the protection net 1 is installed.
In addition, the terminal surface of pre-buried anchor rest 2 is equipped with integrated into one piece's linkage segment 25, and the quantity of linkage segment 25 is equipped with four, and four linkage segment 25 evenly lay in the outer peripheral face of pre-buried anchor rest 2. After the embedded anchor 2 is embedded in the slope soil, the connecting section 25 can abut against the surface of the slope.
Returning to fig. 1, the number of the embedded water guide plates 5 is set to be four, and each embedded water guide plate 5 is arranged between the adjacent embedded anchor seats 2; referring specifically to fig. 3, the pre-buried water guide plate 5 includes a first plate 51, a second plate 52, a third plate 53, a fourth plate 54 and a fifth plate 55 that are sequentially connected, and a positioning column 531 is fixed on the back of the third plate 53, for fixing the pre-buried water guide plate 5 on a slope. In a concrete construction, it is necessary to pre-dig an installation groove on the surface of the slope, and between installation of the protection net 1, an embedded installation plate is installed in the installation groove, and the embedded water guide plate 5 is pre-positioned by the positioning column 531, and the side end of the embedded water guide plate 5 is abutted against the connection section 25.
The steel net frame 56 is erected inside the embedded water guide plate 5, the steel net frame 56 is fixed between the second plate body 52 and the fourth plate body 54, and the steel net frame 56 and the third plate body 53 are arranged at intervals; the steel net frame 56 is cultivated with green cultivation blocks 57, the side surface of the third plate body 53 is provided with a plurality of reserved holes for the roots of the green cultivation blocks 57 to pass through, and all the reserved holes are irregularly distributed on the third plate body 53; after the green cultivation block 57 grows smoothly, the root system of the green cultivation block 57 can penetrate through each preformed hole, so that the embedded water guide plate 5 is stably installed on the side slope.
In addition, after the pre-buried water guide plate 5 is buried in the installation groove, the second plate 52 is located above the fourth plate 54; the second plate 52 is provided with a water permeable structure for embedding the water guide plate 5 into rainwater in the slope soil. Referring specifically to fig. 4, the water permeable structure includes a water permeable tank 521 penetrating the second plate body 52 and two geotextiles 522 fixed to opposite sides of the second plate body 52, the geotextiles 522 being respectively covered on the water permeable tank 521; when rainwater enters the embedded water guide plate 5 through the water permeable groove 521, the brought-up soil can be blocked outside the embedded water guide plate 5 by geotextile 522, so that the possibility of being blocked inside the embedded water guide plate 5 is reduced.
Referring to fig. 5, the cross-sectional shape of the connecting section 25 is the same as that of the embedded water guide plates 5, and after the embedded water guide plates 5 and the embedded anchor seats 2 are installed, a drainage system can be formed between the embedded water guide plates 5 and the embedded anchor seats 2, so as to play a role in rapidly dredging the rainwater in the soil of the side slope and improve the water and soil loss.
The protective net 1 is jointly fixed on the side slope through the reinforcing plate 4 and the anchor rod piece 3; after the protective net 1 is paved, each embedded water guide plate 5 is respectively positioned at the side edge position of the protective net 1, and each embedded anchor seat 2 is respectively positioned at the corner position of the protective net 1. The side welding of strengthening plate 4 has a plurality of locating nails 43, and a plurality of perforation 58 have all been seted up to first plate body 51 and fifth plate body 55, through making the locating nail 43 of strengthening plate 4 pass protection network 1 and perforation 58 in proper order after, strike strengthening plate 4 and make locating nail 43 firm the inserting side slope soil, can make pre-buried water guide plate 5 and strengthening plate 4 centre gripping location protection network 1 jointly. It should be noted that, during the specific installation process, a single reinforcement plate 4 can simultaneously position two adjacent protection nets 1.
The edge position of the reinforcement plate 4 is provided with a kidney-shaped hole 41, the connecting section 25 is rotationally connected with a locking piece 26, and the rapid connection between the reinforcement plate 4 and the connecting section 25 can be realized through the matching of the locking piece 26 and the kidney-shaped hole 41, so that the installation of the reinforcement plate 4 is facilitated.
Referring to fig. 6, specifically, the locking member 26 includes a rotating shaft rotatably connected to the connecting section 25 and a locking plate 261 integrally formed with the rotating shaft, and a positioning area for positioning the reinforcement plate 4 is formed between the locking plate 261 and the connecting section 25 at intervals; the length of the lock plate 261 is greater than the width of the kidney-shaped hole 41, so that the length direction of the lock plate 261 is kept parallel to the extension direction of the kidney-shaped hole 41 in the installation process of the reinforcement plate 4, the lock piece 26 can smoothly pass through the kidney-shaped hole 41, and the lock plate 261 moves to the side surface of the reinforcement plate 4, which is far away from the protection net 1.
The side surface of the lock plate 261, which is close to the connecting section 25, is provided with a second integrally formed tooth-shaped part 262, while the surface of the reinforced plate 4 is provided with a first tooth-shaped part 42, and the first tooth-shaped part 42 is positioned outside the kidney-shaped hole 41; after the locking plate 261 moves to the side surface of the reinforcing plate 4 away from the protection net 1, the locking piece 26 is rotated to keep the length direction of the locking plate 261 perpendicular to the length direction of the strip-shaped hole 641, and the first tooth-shaped portion 42 and the second tooth-shaped portion 262 can be engaged in a matching manner, so that the reinforcing plate 4 is firmly locked to the connecting section 25.
In addition, the back of the reinforcement plate 4 is further adhered with an elastic cushion, the elastic cushion is made of elastic materials such as silica gel or rubber, and can provide avoidance for the rotation of the locking piece 26, so that the first tooth-shaped portion 42 and the second tooth-shaped portion 262 are smoothly matched and limited, and meanwhile, elastic activity allowance exists between the reinforcement plate 4 and slope soil, an elastic buffering effect can be achieved when slope sand and stones are accumulated on the protection net 1, and the possibility that the protection net 1 deforms and even breaks locally is reduced.
Returning to fig. 5, the anchor rod piece 3 is inserted into the cavity 21 of the embedded anchor seat 2 after passing through the grid structure at the corner position of the protective net 1, one end of the anchor rod piece 3 is provided with a pointed end, and the pointed end of the fixed anchor rod piece 3 can pass through the embedded anchor seat 2 and be anchored in the soil of the side slope; the other end of the anchor rod piece 3 is provided with an integrally formed cover body part 33, and the cover body part 33 of the fixed anchor rod piece 3 can be propped against each connecting section 25 of the embedded anchor seat 2, so that the embedded anchor seat 2, the anchor rod piece 3 and the reinforcing plate 4 jointly form an integral anchoring system of the protective net 1.
Referring to fig. 7, the outer peripheral surface of the embedded anchor 2 is provided with a plurality of mounting grooves 23, in this embodiment, the specific number of the mounting grooves 23 is four, and the four mounting grooves 23 are uniformly distributed around the central axis of the embedded anchor 2; each mounting groove 23 is internally and movably provided with a pushing piece 22, and the pushing piece 22 is obliquely arranged upwards along the direction away from the central axis of the cavity 21 in a normal state. In addition, the end of the pushing piece 22 is integrally formed with the abutting portion 221, under the action of gravity, the inclined pushing pieces 22 can enable the abutting portions 221 to abut against each other to form a penetration area together, when the anchor rod piece 3 is inserted into the cavity 21, the anchor rod piece 3 can enter the penetration area to force the abutting portions 221 to be far away from each other, and finally the pushing pieces 22 are inserted into the slope soil to play a role in enhancing the anchoring strength of the embedded anchor seat 2.
Referring to fig. 8, the outer circumferential surface of the anchor rod 3 is provided with a plurality of guide blocks 31, and each guide block 31 is integrally formed with the anchor rod 3; the inner wall of the cavity 21 is provided with a guide groove 24 which is matched with the guide block 31 in a sliding way, the guide groove 24 comprises a straight line segment 241 and an arc segment 242 which are communicated with each other, and the straight line segment 241 is positioned above the arc segment 242; the extension direction of the straight line segment 241 is the same as the axis direction of the cavity 21, and the straight line segment 241 extends upwards to penetrate through the surface of the embedded anchor seat 2; the arc segment 242 extends spirally in the axial direction of the cavity 21.
When the anchor rod piece 3 is inserted into the cavity 21, the guide blocks 31 are matched with the straight line sections 241 of the guide grooves 24, and at the moment, each guide block 31 is opposite to the gap between two adjacent abutting parts 221, so that when the anchor rod piece 3 pushes up each abutting part 221, the guide blocks 31 can smoothly move downwards from the gap between the adjacent abutting parts 221; continuing to force the anchor rod 3 downward, the final guide block 31 can enter the arc segment 242, causing the anchor rod 3 to automatically deflect at an angle.
Referring to fig. 6, an elastic assembly 32 is mounted on the top of the guide block 31, and the elastic assembly 32 includes a hard spring 321 connected to the guide block 31 and a force-bearing block 322 connected to one end of the hard spring 321; when the anchor rod piece 3 is inserted, the elastic component 32 and the guide block 31 are just opposite to the gap between the two adjacent abutting parts 221, and after the guide block 31 enters the arc segment 242 and the anchor rod piece 3 naturally deflects, the bearing block 322 can be abutted against the lower end face of the abutting part 221, so that elastic connection is formed between the anchor rod piece 3 and the embedded anchor seat 2, an elastic buffering effect can be achieved when sand and stones are accumulated in the protective net 1, and the possibility that loosening or separation occurs at the corner position of the protective net 1 is further reduced.
Reinforcing components 6 for reinforcing anchoring stress are further arranged between the anchor rod piece 3 and the embedded anchor seat 2, the number of the reinforcing components 6 is multiple, and all the reinforcing components 6 are uniformly distributed along the outer circumferential surface of the anchor rod piece 3. Referring to fig. 9, the reinforcing component 6 includes a rotary rod 61 and a telescopic arm 63, the rotary rod 61 is rotatably connected to the outer peripheral surface of the anchor rod 3, and a torsion spring 62 is installed at the rotary connection position of the rotary rod 61 and the anchor rod 3, where the torsion spring 62 is used to force the rotary rod 61 to be normally set at an angle with the anchor rod 3. When the anchor rod 3 is inserted into the cavity 21, the rotary rod 61 can abut against the inner wall of the cavity 21 and be mutually folded; when the guide block 31 of the anchor rod piece 3 enters the bottom end of the arc segment 242, the rotary rod piece 61 can pass through the cavity 21 and enter the side surface of the embedded anchor seat 2 far away from the protective net 1, and under the torsion action of the torsion spring 62, the rotary rod piece 61 can be propped against the side end surface of the embedded anchor seat 2.
Referring to fig. 10, the telescopic arm group 63 includes a fixed arm plate 64 and a movable arm plate 65, wherein the fixed arm plate 64 is fixed to the outer circumferential surface of the pre-buried anchor 2 and is located at one end of the pre-buried anchor 2 away from the protection net 1; the two sides of the fixed arm plate 64 are respectively provided with a strip hole 641, and the extension direction of the strip hole 641 is the same as the length direction of the fixed arm plate 64; the movable arm plate 65 is penetrated with a connecting member 651, and the movable arm plate 65 is slidably connected to the bar-shaped hole 641 through the connecting member 651, so that sliding connection between the movable arm plate 65 and the fixed arm plate 64 is realized. A tension spring 66 is connected between the movable arm plate 65 and the fixed arm plate 64, and the tension spring 66 can force the movable arm plate 65 to move in a direction approaching the fixed arm plate 64, and in the initial state, a movable area is formed between the movable arm plate 65 and the fixed arm plate 64, and the movable area is opposite to the outer side of the side end face of the embedded anchor 2.
Referring to fig. 9, the movable arm plate 65 of the present embodiment is provided with an inclined surface 652, the inclined surface 652 is opposite to the outer side of the side end surface of the embedded anchor 2, and when the sand and stones inside the protection net 1 accumulate and force the anchor rod 3 to move outwards, the rotary rod 61 can abut against the side end surface of the embedded anchor 2 and deflect outwards; during the gradual deflection of the rotating rod 61, the end of the rotating rod 61 can abut against the inclined surface 652 and force the movable arm plate 65 to move away from the fixed arm plate 64, so that the telescopic arm group 63 extends outwards.
In addition, the telescopic arm group 63 of the embodiment is obliquely arranged downwards along the direction away from the central axis of the embedded anchor seat 2, so that the movable arm plate 65 can be obliquely inserted into the soil of the side slope when the rod piece 61 is rotated to force the movable arm plate 65 to move outwards; at this time, the acting force borne by the movable arm plate 65 is inclined downwards, the pushing piece 22 is inserted into the slope soil upwards under the action of the anchor rod piece 3, at this time, the acting force borne by the pushing piece 22 is inclined upwards, component forces of the acting force and the pushing piece in the vertical direction are mutually offset, so that the anchoring strength of the anchoring mechanism can be further enhanced, and the stronger the acting force of the rotating rod piece 61 on the movable arm plate 65 is along with the increase of the acting force of the soil on the protective net 1, the anchoring strength of the anchoring mechanism can be further enhanced.
The implementation principle of the protection device for the high steep side slope of the tunnel portal provided by the embodiment of the application is as follows:
according to the application, the protection net 1 is anchored and reinforced through the embedded anchor seat 2, the anchor rod piece 3 and the reinforcing plate 4, so that an integral anchoring system of the protection net 1 can be formed, when water and soil flow occurs in the local part of the side slope soil, the anchoring mechanism at the local position or the positioning nail 43 at the local position is loosened, the influence on the integral anchoring system is small, and the protection net 1 can still maintain good protection capability. In addition, through the pre-buried water guide plate 5 that sets up, the drainage system that forms between each pre-buried water guide plate 5 and each pre-buried anchor seat 2 can play the effect of dredge the interior rainwater of side slope soil fast, and then improves the circumstances of soil erosion and water loss to ensure the high steep slope's of tunnel portal support stability, improve driving safety.
The above is a preferred embodiment of the present application, and is not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. The utility model provides a protector of high steep side slope of tunnel portal which characterized in that: the side slope protection device comprises a protection net (1), a plurality of groups of anchoring mechanisms for fixing the protection net (1) on the side slope and reinforcing plate pieces (4) connected between every two adjacent anchoring mechanisms, wherein each group of anchoring mechanisms are respectively arranged at each corner position of the protection net (1);
the anchoring mechanism comprises an embedded anchor seat (2) which is embedded in the side slope soil in advance and an anchor rod piece (3) which is fixed on the embedded anchor seat (2), the anchor rod piece (3) and the embedded anchor seat (2) jointly clamp and fix the protective net (1), and the anchor rod piece (3) is penetrated in the embedded anchor seat (2) and anchored in the side slope soil;
the reinforcing plate (4) is connected between adjacent embedded anchor seats (2), positioning nails (43) are arranged on the side faces of the reinforcing plate (4), and the positioning nails (43) penetrate through the protective net (1) and are anchored in the soil of the side slope.
2. The protection device for a high steep side slope of a tunnel portal according to claim 1, wherein: the embedded anchor seat (2) is provided with an axially-through cavity (21), the peripheral surface of the embedded anchor seat (2) is provided with a plurality of mounting grooves (23) communicated with the cavity (21), and each mounting groove (23) is movably provided with a pushing piece (22);
the end part of each pushing piece (22) is provided with an abutting part (221), and in an initial state, each pushing piece (22) is retracted into the mounting groove (23), and at the moment, each abutting part (221) abuts against each other to jointly form a penetration area for the tip of the anchor rod piece (3) to penetrate through; the anchor rod piece (3) is inserted into the cavity (21), when the anchor rod piece (3) enters the cavity (21), the anchor rod piece (3) enters the cross-connection area and forces each abutting part (221) to be far away from each other, and finally each pushing piece (22) is inserted into the side slope soil.
3. The protection device for a high steep side slope of a tunnel portal according to claim 2, wherein: the outer peripheral surface of the anchor rod piece (3) is provided with a guide block (31), and the inner wall of the cavity (21) is provided with a guide groove (24) which is in sliding fit with the guide block (31); the guide groove (24) comprises a straight line section (241) and an arc line section (242) which are communicated with each other, the extension direction of the straight line section (241) is the same as the axial direction of the cavity (21), and the arc line section (242) spirally extends along the axial direction of the cavity (21);
an elastic component (32) is arranged at the top of the guide block (31), and when the guide block (31) is positioned on the straight line section (241), the elastic component (32) is opposite to a gap between the two abutting parts (221); when the guide block (31) is positioned on the arc section (242), the elastic component (32) is abutted against the lower end surface of the abutting part (221); and a reinforcing component (6) for reinforcing anchoring stress is further arranged between the anchor rod piece (3) and the embedded anchor seat (2).
4. The protection device for a high steep side slope of a tunnel portal according to claim 3, wherein: the reinforcing components (6) are provided with a plurality of groups, and all the reinforcing components (6) are uniformly distributed along the peripheral surface of the anchor rod piece (3); the reinforcing component (6) comprises a rotary rod piece (61) rotatably connected to the anchor rod piece (3) and a telescopic arm group (63) arranged at the end part of the embedded anchor seat (2), and a torsion spring (62) is arranged at the rotary connection part of the rotary rod piece (61) and the anchor rod piece (3) and used for forcing the rotary rod piece (61) to be arranged at an angle with the anchor rod piece (3) in a normal state;
when the anchor rod piece (3) is inserted into the cavity (21) and the guide block (31) is positioned on the arc section (242), the rotating rod piece (61) is positioned on one side of the embedded anchor seat (2) far away from the protective net (1); when the anchor rod piece (3) is forced to move outwards, the rotating rod piece (61) can prop against the embedded anchor seat (2) to deflect outwards, and the telescopic arm group (63) is forced to extend outwards.
5. The protection device for a high steep side slope of a tunnel portal according to claim 4, wherein: the telescopic arm group (63) comprises a fixed arm plate (64) fixed on the outer peripheral surface of the embedded anchor seat (2) and a movable arm plate (65) movably connected with the fixed arm plate (64), and an extension spring (66) is arranged between the movable arm plate (65) and the fixed arm plate (64) and used for forcing the movable arm plate (65) to move towards the direction close to the fixed arm plate (64); in the initial state, a movable area is formed between the movable arm plate (65) and the fixed arm plate (64), and when the rotary rod piece (61) abuts against the embedded anchor seat (2), the rotary rod piece (61) enters the movable area and forces the movable arm plate (65) to move in a direction away from the fixed arm plate (64).
6. The protection device for a high steep side slope of a tunnel portal according to claim 4, wherein: the telescopic arm group (63) is obliquely arranged downwards along the direction away from the central axis of the embedded anchor seat (2).
7. The protection device for a high steep side slope of a tunnel portal according to claim 2, wherein: the pushing piece (22) is obliquely arranged upwards along the direction away from the central axis of the cavity (21).
8. The protection device for a high steep side slope of a tunnel portal according to claim 1, wherein: the outer peripheral surface of the embedded anchor seat (2) is provided with a connecting section (25), and when the embedded anchor seat (2) is embedded in the slope soil, the connecting section (25) is propped against the surface of the slope;
the reinforcing plate (4) is provided with a kidney-shaped hole (41), the connecting section (25) is rotationally connected with a locking piece (26), the end part of the locking piece (26) is provided with a locking plate (261), and the locking plate (261) and the connecting section (25) are arranged at intervals to form a positioning area for positioning the reinforcing plate (4).
9. The protection device for a high steep side slope of a tunnel portal according to claim 8, wherein: the back of the reinforcement plate (4) is provided with an elastic cushion, the surface of the reinforcement plate (4) is provided with a first tooth-shaped part (42), and the first tooth-shaped part (42) is positioned outside the kidney-shaped hole (41); the side of the lock plate (261) close to the connecting section (25) is provided with a second tooth-shaped part (262), and when the length direction of the lock plate (261) is perpendicular to the length direction of the kidney-shaped hole (41), the first tooth-shaped part (42) is matched and meshed with the second tooth-shaped part (262).
10. The protection device for a high steep side slope of a tunnel portal according to claim 1, wherein: the novel side slope soil protection device is characterized by further comprising a pre-buried water guide plate (5) which is buried in the side slope soil in advance, wherein the pre-buried water guide plate (5) is provided with perforations (58), and the positioning nails (43) sequentially penetrate through the protection net (1) and the perforations (58) and then are anchored in the side slope soil;
the embedded water guide plate (5) is provided with a water permeable structure, the water permeable structure comprises a water permeable groove (521) formed in the top of the embedded water guide plate (5) and geotechnical cloth (522) covering the water permeable groove (521), a green cultivation block (57) is arranged inside the embedded water guide plate (5), and a preformed hole for the root system of the green cultivation block (57) to pass through is formed in the side face of the embedded water guide plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311413035.3A CN117230816A (en) | 2023-10-27 | 2023-10-27 | Protection device for tunnel portal high steep side slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311413035.3A CN117230816A (en) | 2023-10-27 | 2023-10-27 | Protection device for tunnel portal high steep side slope |
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| Publication Number | Publication Date |
|---|---|
| CN117230816A true CN117230816A (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311413035.3A Pending CN117230816A (en) | 2023-10-27 | 2023-10-27 | Protection device for tunnel portal high steep side slope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117758766A (en) * | 2024-02-22 | 2024-03-26 | 大连金普新区市政管理有限公司 | Reinforcing apparatus for construction foundation soil slope |
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2023
- 2023-10-27 CN CN202311413035.3A patent/CN117230816A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117758766A (en) * | 2024-02-22 | 2024-03-26 | 大连金普新区市政管理有限公司 | Reinforcing apparatus for construction foundation soil slope |
| CN117758766B (en) * | 2024-02-22 | 2024-04-19 | 大连金普新区市政管理有限公司 | Reinforcing apparatus for construction foundation soil slope |
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