CN112922640B - Anchor-support combined support body for underground space support - Google Patents
Anchor-support combined support body for underground space support Download PDFInfo
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- CN112922640B CN112922640B CN202110151443.0A CN202110151443A CN112922640B CN 112922640 B CN112922640 B CN 112922640B CN 202110151443 A CN202110151443 A CN 202110151443A CN 112922640 B CN112922640 B CN 112922640B
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- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/006—Lining anchored in the rock
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/155—Laggings made of strips, slats, slabs or sheet piles
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
- E21D21/0033—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts having a jacket or outer tube
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
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- Mining & Mineral Resources (AREA)
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Abstract
The invention discloses an anchor support combined support body for supporting underground space, which comprises an upper support panel, side support panels and anchor rod assemblies, wherein the upper support panel and the side support panels are arc-shaped support panels, a plurality of anchor rod assemblies are arranged in the direction vertical to the upper surface of each arc-shaped support panel, two upper support panels which are symmetrically arranged are attached right above the cross section of a roadway, each upper support panel is connected with a side support panel in the direction far away from a central line, and each side support panel is connected with a bottom support panel vertical to the ground in the direction far away from the central line; compared with the prior art, the invention is beneficial to controlling the release stress of surrounding rocks, avoids the stress concentration caused by the connection between panels, has stable connection of the supporting rods, can be disassembled and recycled without grouting during the installation of the anchor rod assembly, and has stable and reliable effect.
Description
Technical Field
The invention relates to the technical field of supporting bodies, in particular to an anchor-support combined supporting body for underground space supporting.
Background
The roadway support is adopted to keep the roadway smooth and the surrounding rocks stable, so that the method has important significance on the construction and production of the space below the roadway. The basic purpose of supporting the roadway is to alleviate and reduce the movement of surrounding rocks, so that the section of the roadway is not excessively reduced, and meanwhile, the scattered and damaged surrounding rocks are prevented from falling.
The roadway support goes through the lengthy process from wood support, bricklaying support and section steel support to anchor bolt support. Practical experience at home and abroad shows that anchor bolt support is an economic and effective support technology for many years, and compared with shed type support, the anchor bolt support obviously improves the roadway support effect, reduces the roadway support cost and lightens the labor intensity of workers.
In the prior art, after a tunnel or an underground space is excavated, a temporary support is usually formed by laying steel frames and reinforcing mesh sheets and spraying concrete, and system anchor rods are arranged to assist in driving so as to inhibit deformation and collapse of surrounding rocks. The construction method has the problems of high safety risk, low mechanization degree, high labor intensity, severe working environment, serious material waste, difficult quality guarantee and the like, and is high-risk, heavy-pollution and low-efficiency construction operation.
In the prior art, prefabricated supporting panels are adopted for supporting in some projects, so that the structural rigidity is high, internal stress cannot be effectively released by surrounding rocks, the self bearing capacity of the surrounding rocks cannot be fully exerted, and the material waste of a temporary supporting structure or the damage and failure of the temporary structure are caused.
In addition, in the prior art, the anchor rod is fixed in the anchor rod hole in an internal grouting mode and cannot be detached and recycled, so that the waste of supporting materials is also caused.
Therefore, it is necessary to provide an anchor combined supporting body for supporting an underground space to solve the above problems in the background art.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: an anchor support combination support body for supporting underground space comprises an upper support panel, side support panels and anchor rod assemblies, wherein the upper support panel and the side support panels are arc-shaped support panels, the upper support panel and the side support panels are provided with a plurality of anchor rod assemblies which extend along the radial direction of the inner wall of a roadway and can be embedded into the roadway, the two symmetrically arranged upper support panels are attached right above the cross section of the roadway, each upper support panel is connected with a side support panel in the direction away from the central line, and each side support panel is connected with a bottom support panel perpendicular to the ground in the direction away from the central line;
two go up the protecting panel below and link up on truss connection to horizontally crossbeam through the top, curb girder of each fixedly connected with in crossbeam both sides, curb side protecting panel, bottom supporting panel all are connected with the curb girder through supporting the connecting rod, the curb girder bottom is supported through the curb girder and is fixed on the tunnel bottom surface, bottom supporting panel passes through the bottom panel support and fixes on the tunnel bottom surface, just bottom panel support and curb girder support homoenergetic height-adjusting.
Preferably, the two upper protection panels are fixedly connected through bolts, the upper surfaces of the upper protection panels and the side support panels and the upper surfaces of the side support panels and the bottom support panel are hinged, and the lower surfaces of the upper protection panels and the side support panels are connected through an inter-panel damper.
Furthermore, as an optimization, the side supporting panel and the bottom supporting panel are respectively hinged with the side beam through a supporting connecting rod, hinged points of the side supporting panel and the side beam are respectively an upper hinge interface and a lower hinge interface, the upper hinge interface is further connected with another supporting connecting rod to the bottom supporting panel, and the lower hinge interface is further connected with another supporting connecting rod to the bottom side supporting panel.
Preferably, a panel side member damper is connected between the side support panel and the side member.
Further, as preferred, the stock subassembly includes stock urceolus, stock supporting component, the stock urceolus is the hollow barrel that has the internal thread, is equipped with the stock screw rod with its screw-thread fit in it, the stock urceolus passes through urceolus connecting plate and goes up the surface connection of armor plate/collateral branch armor plate, the stock screw rod runs through armor plate/collateral branch armor plate to through detachable screw rod connecting plate and its internal surface connection, just still follow axial arrangement in the stock urceolus and have a plurality of stock supporting component.
Further, as preferred, stock supporting component includes movable sleeve, last connecting rod, movable sleeve can follow stock urceolus axial displacement ground cover and establish its periphery, movable sleeve's edge articulates along the circumference has many to go up the connecting rod, it has lower connecting rod through connecting pin articulated to go up the connecting rod one end of keeping away from movable sleeve, every the one end that the connecting rod was kept away from to lower connecting rod articulates jointly to fixed sleeve on, the fixed cover of fixed sleeve is established in stock urceolus periphery.
Further, as preferred, stock supporting component still includes screw rod sleeve and internal connecting rod, set up the logical groove that corresponds with last connecting rod \ lower connecting rod position on the stock urceolus between activity sleeve and fixed sleeve, be located and be equipped with the screw rod sleeve on the stock screw rod that leads to the inslot along its circumferential rotation ground, it has many internal connecting rods to articulate along the circumference on the screw rod sleeve, every the internal connecting rod runs through logical groove, and keeps away from the telescopic one end of screw rod and articulates the middle section at last connecting rod.
Preferably, the part of the screw sleeve extending out of the through groove is symmetrically connected with two guide rods in a penetrating manner, the upper part of each guide rod extends to the movable sleeve and is fixedly connected with the movable sleeve, the lower part of each guide rod penetrates through the fixed sleeve and is fixedly connected to the guide rod fixing disc below the fixed sleeve, and the guide rods can stretch out and retract;
the guide rod fixing disc is fixed on the anchor rod outer cylinder.
Preferably, the outer surface of the lower connecting rod is provided with a plurality of resistance rollers, the resistance rollers are rollers with bulges on the outer surface, and each resistance roller is formed by connecting resistance roller shafts in series;
the connecting pin is fixedly connected with the upper connecting rod, the connecting pin is rotatably connected with the lower connecting rod, a connecting pin connecting rod is hinged to the outer wall of the connecting pin in the circumferential direction, one end, away from the connecting pin, of the connecting pin connecting rod is hinged to the locking connecting rod, one end, away from the connecting pin connecting rod, of the locking connecting rod is rotatably connected to the side face of the lower connecting rod, a locking column which is at a certain angle with the locking column is further fixed to one side of the locking connecting rod, a locking disc is fixed to one end, close to the connecting pin, of the resistance roller, and a circle of circular arc bayonet is arranged on the edge of the locking disc in the circumferential direction.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the upper surface between the upper supporting panel and the side supporting panel and the upper surface between the side supporting panel and the bottom supporting panel are hinged, and the lower surfaces are connected through the dampers between the panels, so that impact can be relieved among the upper supporting panel, the side supporting panel and the bottom supporting panel, certain flexibility is provided, the release stress of surrounding rocks and the crushing, expanding and deformation in the loosening ring generation process can be controlled, the supporting is stabilized, the condition that the connection fails due to stress concentration in the connection between the panels is avoided, the cross-connected supporting connecting rods only bear tensile force and pressure, and do not bear bending moment, and the stability of the connection of the supporting rods is ensured.
In the invention, the screw rod sleeve can move up and down by rotating the anchor rod screw rod, so that the upper connecting rod is pushed to expand or contract by the inner connecting rod, and the hinged ends of the upper connecting rod and the lower connecting rod can be spread and embedded into the anchor rod hole by the support of the lower connecting rod and the fixed sleeve connected with the lower connecting rod, so as to provide support; the torsional strength of the movable sleeve, the screw sleeve and the fixed sleeve can be enhanced through the guide rod,
when the anchor rod assembly stretches into the anchor rod hole, the lower connecting rod rotates to tend to the vertical direction, the locking column is far away from the locking disc, the resistance rollers can reduce circumferential friction through rolling, when the anchor rod supporting assembly is propped open, the lower connecting rod rotates to tend to the horizontal direction, the locking column rotates to be embedded into a bayonet of the locking disc, the friction force of the resistance rollers can be increased, grouting is not needed in installation of the anchor rod assembly, the anchor rod assembly can be detached and recycled, and the effect is stable and reliable.
Drawings
FIG. 1 is a schematic structural view of an anchor support combination supporting body for supporting an underground space;
FIG. 2 is a schematic view showing a construction of a bolt assembly of an anchor support combined supporting body for supporting an underground space;
FIG. 3 is a schematic structural view of a rock bolt supporting assembly of an anchor combined supporting body for supporting an underground space;
FIG. 4 is a cross-sectional view of a supporting member of an anchor assembly for supporting an underground space;
FIG. 5 is a schematic view showing a connection relationship between a resistance roller and a connecting pin of an anchor combined supporting body for supporting an underground space;
FIG. 6 is a schematic view showing a structure of a locking plate of an anchor support combined support for supporting an underground space;
in the figure: 1. an upper support panel; 2. a side support panel; 3. a bottom support panel; 4. an inter-panel damper; 5. an anchor assembly; 6. the top is connected with a truss; 7. a cross beam; 8. a side beam; 9. a support link; 10. a panel side beam damper; 11. a bottom panel support; 12. side beam supports; 51. an anchor rod outer cylinder; 52. an anchor rod screw; 53. an anchor support assembly; 54. an outer cylinder connecting plate; 55. a screw connecting plate; 531. a movable sleeve; 532. an upper connecting rod; 533. a lower connecting rod; 534. a through groove; 535. a screw sleeve; 536. fixing the sleeve; 537. an inner link; 538. a resistance roll; 539. a guide bar; 5310. a guide rod fixing disc; 5311. a connecting pin; 5312. a connecting pin link; 5313. a locking connecting rod; 5314. a locking post; 5315. a locking plate; 5316. a resistance roll shaft; 91. an upper hinge interface; 92. and the lower hinge interface.
Detailed Description
Referring to fig. 1, in the embodiment of the present invention, an anchor support combination support for supporting an underground space includes an upper support panel 1, side support panels 2, and anchor rod assemblies 5, where the upper support panel 1 and the side support panels 2 are arc support panels, the upper support panel and the side support panels are provided with a plurality of anchor rod assemblies 5 which extend along a radial direction of an inner wall of a roadway and can be embedded into the roadway, two upper support panels 1 which are symmetrically arranged are attached right above a cross section of the roadway, each upper support panel 1 is connected with a side support panel 2 in a direction away from a center line, each side support panel 2 is connected with a bottom support panel 3 perpendicular to the ground in a direction away from the center line, that is, the upper support panel 1, the side support panels 2, and the bottom support panels 3 which are symmetrically arranged in sequence along the center line of the cross section of the roadway together form an arch shape attached to the roadway;
two go up 1 below of protective panel and be connected to horizontally crossbeam 7 through top linking truss 6 on, 7 each fixedly connected with curb girder 8 in both sides of crossbeam, curb girder protective panel 2, bottom support panel 3 all are connected with curb girder 8 through supporting connecting rod 9, curb girder 8 bottom is supported 12 through the curb girder and is fixed on the tunnel bottom surface, bottom support panel 3 supports 11 through the bottom panel and fixes on the tunnel bottom surface, just bottom panel supports 11 and curb girder support 12 homoenergetic regulation height.
Referring to fig. 1, in the embodiment, two upper supporting panels 1 are fixedly connected by bolts, the upper surfaces of the upper supporting panels 1 and the side supporting panels 2 and the upper surfaces of the side supporting panels 2 and the bottom supporting panels 3 are hinged, and the lower surfaces of the upper supporting panels 1 and the side supporting panels 2 are connected by the inter-panel damper 4, so that the impact among the upper supporting panels 1, the side supporting panels 2 and the bottom supporting panels 3 can be alleviated, and the upper supporting panels have certain flexibility, which is favorable for controlling the releasing stress of surrounding rocks and the crushing, expanding and deformation of loose circles during the generation process, and can stabilize the supporting, and avoid the situation that the connection fails due to stress concentration in the connection between the panels.
Referring to fig. 1, in this embodiment, each of the side supporting panel 2 and the bottom supporting panel 3 is hinged to the side beam 8 through a supporting link 9, the hinged points of the side supporting panel and the side beam 8 are an upper hinged port 91 and a lower hinged port 92, respectively, the upper hinged port 91 is further connected to another supporting link 9 to the bottom supporting panel 3, and the lower hinged port 92 is further connected to another supporting link 9 to the bottom side supporting panel 2, so that each supporting link 9 only bears tension and pressure, does not bear bending moment, and ensures the stability of the strut connection.
Referring to fig. 1, in the present embodiment, a panel side beam damper 10 is further connected between the side support panel 2 and the side beam 8.
Referring to fig. 2, in the present embodiment, the anchor rod assembly 5 includes an anchor rod outer cylinder 51 and an anchor rod support assembly 53, the anchor rod outer cylinder 51 is a hollow cylinder with an internal thread, an anchor rod screw 52 in threaded fit with the anchor rod outer cylinder is installed in the anchor rod outer cylinder 51, the anchor rod outer cylinder 51 is connected with the outer surface of the upper protection panel 1/side protection panel 2 through an outer cylinder connecting plate 54, the anchor rod screw 52 penetrates through the upper protection panel 1/side protection panel 2 and is connected with the inner surface thereof through a detachable screw connecting plate 55, and a plurality of anchor rod support assemblies 53 are further axially arranged in the anchor rod outer cylinder 51.
Referring to fig. 3 and 4, in this embodiment, the anchor rod supporting assembly 53 includes a movable sleeve 531 and an upper connecting rod 532, the movable sleeve 531 is axially movably sleeved on the outer periphery of the anchor rod outer cylinder 51, an edge of the movable sleeve 531 is circumferentially hinged with a plurality of upper connecting rods 532, one ends of the upper connecting rods 532 far away from the movable sleeve 531 are hinged with a lower connecting rod 533 through a connecting pin 5311, one end of each lower connecting rod 533 far away from the upper connecting rod 532 is hinged to a fixing sleeve 536, and the fixing sleeve 536 is fixedly sleeved on the outer periphery of the anchor rod outer cylinder 51.
Referring to fig. 3 and 4, in the present embodiment, the anchor rod supporting assembly 53 further includes a screw sleeve 535 and an inner connecting rod 537, a through groove 534 corresponding to the positions of the upper connecting rod 532/the lower connecting rod 533 is formed on the anchor rod outer cylinder 51 between the movable sleeve 531 and the fixed sleeve 536, the screw sleeve 535 is rotatably disposed on the anchor rod screw 52 located in the through groove 534 along the circumferential direction thereof, the screw sleeve 535 is circumferentially hinged with a plurality of inner connecting rods 537, each inner connecting rod 537 penetrates through the through groove 534, and one end away from the screw sleeve 535 is hinged to the middle section of the upper connecting rod 532;
that is, by rotating the anchor rod screw 52, the screw sleeve 535 can be moved up and down, thereby pushing the upper link 532 to expand or contract through the inner link 537, and the hinged ends of the upper and lower links 532, 533 can be spread out and inserted into the anchor rod hole to provide support through the support of the lower link 533 and the fixing sleeve 536 connected thereto;
referring to fig. 3 and 4, in this embodiment, two guide rods 539 symmetrically penetrate and are connected to a portion of the screw sleeve 535 extending out of the through slot 534, the upper portion of each guide rod 539 extends to the movable sleeve 531 and is fixedly connected to the movable sleeve 531, the lower portion of each guide rod 539 penetrates through the fixed sleeve 536 and is fixedly connected to the guide rod fixing disc 5310 below the fixed sleeve, and the guide rods 539 can extend and retract;
the guide rod fixing disc 5310 is fixed on the anchor rod outer cylinder 51;
the torsional strength of the movable sleeve 531, the screw sleeve 535, and the fixed sleeve 536 can be enhanced by the guide rods 539.
Referring to fig. 3 and 4, in this embodiment, a plurality of resistance rollers 538 are disposed on an outer surface of the lower connecting rod 533, the resistance rollers 538 are rollers with protrusions on an outer surface, each resistance roller 538 is connected in series by a resistance roller shaft 5316, a locking disc 5315 is fixed at one end of each resistance roller 5316 close to a connecting pin 5311, and a circle of circular arc bayonets are arranged on an edge circumference of the locking disc 5315;
the connecting pin 5311 is fixedly connected with the upper connecting rod 532, the connecting pin 5311 is rotatably connected with the lower connecting rod 533, a connecting pin connecting rod 5312 is hinged to the outer wall of the connecting pin 533 in the circumferential direction, one end of the connecting pin connecting rod 5312, which is far away from the connecting pin 5311, is hinged to the locking connecting rod 5313, one end of the locking connecting rod 5313, which is far away from the connecting pin connecting rod 5312, is rotatably connected to the side surface of the lower connecting rod 533, and a locking column 5314 which forms a certain angle with the locking connecting rod 5313 is further fixed on one side of the locking connecting rod 5313;
when the anchor rod assembly 5 stretches into the anchor rod hole, the lower connecting rod 533 rotates to tend to the vertical direction, the locking column 5314 is far away from the locking disc 5315, the resistance rollers 538 can reduce circumferential friction through rolling, when the anchor rod supporting assembly 53 is unfolded, the lower connecting rod 533 rotates to tend to the horizontal direction, the locking column 5314 rotates to be embedded into the clamping opening of the locking disc 5315, and the resistance rollers 538 are locked to increase friction force.
In specific implementation, the anchor rod screw 52 in the anchor rod assembly 5 is screwed upwards in advance to enable the anchor rod support assembly 53 to contract, a plurality of anchor rod holes are drilled in an arch roadway along the circumferential direction of the section of the arch roadway, the anchor rod assembly 5 extends into the anchor rod holes, the anchor rod screw 52 is screwed downwards, and the anchor rod support assembly 53 is partially expanded to provide pretightening force;
the anchor rod outer cylinder 51 is connected with the outer surface of the upper protection panel 1/side support panel 2 through an outer cylinder connecting plate 54, the anchor rod screw 52 penetrates through the upper protection panel 1/side support panel 2 and is provided with a screw connecting plate 55, the anchor rod screw 52 is continuously rotated to enable one end of the upper connecting rod 532 and the lower connecting rod 533, which are hinged to each other, to be capable of being propped open and embedded into an anchor rod hole so as to provide radial suspension support for the upper protection panel 1/side support panel 2, and the screw connecting plate 55 is fixedly connected with the inner surface of the upper protection panel 1/side support panel 2 through screws after the anchor rod screw 52 is continuously rotated;
when the anchor rod assembly 5 is inserted into the anchor rod hole, the lower connecting rod 533 rotates to approach the vertical direction, the locking column 5314 is far away from the locking disc 5315, the resistance rollers 538 can reduce circumferential friction through rolling, when the anchor rod support assembly 53 is expanded, the lower connecting rod 533 rotates to approach the horizontal direction, the locking column 5314 rotates to be embedded into a clamping opening of the locking disc 5315, and the resistance rollers 538 are locked to increase the friction force;
connecting inter-panel dampers 4 between corresponding supporting panels so that impact can be relieved among the upper supporting panels 1, the side supporting panels 2 and the bottom supporting panels 3, installing top joining trusses 6 below the two upper supporting panels 1 and connecting the top joining trusses with cross beams 7, installing side beams 8 on two sides of the cross beams 7 and installing corresponding supporting connecting rods 9;
a panel side beam damper 10 is further connected between the side supporting panel 2 and the side beam 8, the bottom of the side beam 8 is fixed on the bottom surface of the roadway according to a side beam support 12, and the bottom supporting panel 3 is provided with a bottom panel support 11 fixed on the bottom surface of the roadway and adjusts the height of the side beam support and the bottom panel support to be suitable for the bottom surface.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. The anchor support combined support body for underground space support comprises an upper support panel (1), side branch support panels (2) and anchor rod assemblies (5), and is characterized in that the upper support panel (1) and the side branch support panels (2) are arc support panels, the upper support panel (1) and the side branch support panels (2) are provided with a plurality of anchor rod assemblies (5) which extend along the radial direction of the inner wall of a roadway and can be embedded into the roadway, two symmetrically arranged upper support panels (1) are attached right above the cross section of the roadway, each upper support panel (1) is connected with a side branch support panel (2) in the direction far away from a central line, and each side branch support panel (2) is connected with a bottom support panel (3) perpendicular to the ground in the direction far away from the central line;
two go up protective panel (1) below and connect on truss (6) are connected to horizontally crossbeam (7) through the top, crossbeam (7) each fixedly connected with a curb girder (8) in both sides, collateral branch protective panel (2), bottom support panel (3) all are connected with curb girder (8) through supporting connecting rod (9), curb girder (8) bottom is supported (12) through the curb girder and is fixed on the tunnel bottom surface, bottom support panel (3) are supported (11) through the bottom panel and are fixed on the tunnel bottom surface, just bottom panel support (11) and curb girder support (12) homoenergetic height-adjusting.
2. The anchor support combined support body for underground space support according to claim 1, wherein two upper support panels (1) are fixedly connected with each other through bolts, the upper support panels (1) are hinged with the upper surfaces of the side support panels (2), the lower surfaces of the upper support panels are connected with the inter-panel dampers (4), the side support panels (2) are hinged with the upper surfaces of the bottom support panels (3), and the lower surfaces of the side support panels are connected with the inter-panel dampers (4).
3. The combined anchor support for underground space support according to claim 1, wherein the lateral support panel (2) and the bottom support panel (3) are respectively hinged with the side beam (8) through a support connecting rod (9), the hinged points of the lateral support panel and the bottom support panel (3) with the side beam (8) are an upper hinged opening (91) and a lower hinged opening (92), the upper hinged opening (91) is further connected with another support connecting rod (9) to the bottom support panel (3), and the lower hinged opening (92) is further connected with another support connecting rod (9) to the bottom lateral support panel (2).
4. The anchor combined support body for underground space support according to claim 1, wherein a panel side beam damper (10) is connected between the side support panel (2) and the side beam (8).
5. The anchor combined support body for underground space support according to claim 1, wherein the anchor rod assembly (5) comprises an anchor rod outer cylinder (51) and an anchor rod support assembly (53), the anchor rod outer cylinder (51) is a hollow cylinder with an internal thread, an anchor rod screw rod (52) in threaded fit with the anchor rod outer cylinder is arranged in the anchor rod outer cylinder, the anchor rod outer cylinder (51) is connected with the outer surface of the upper support panel (1)/side support panel (2) through an outer cylinder connecting plate (54), the anchor rod screw rod (52) penetrates through the upper support panel (1)/side support panel (2) and is connected with the inner surface of the upper support panel through a detachable screw rod connecting plate (55), and a plurality of anchor rod support assemblies (53) are further axially arranged in the anchor rod outer cylinder (51).
6. The anchor combined support body for underground space support according to claim 5, wherein the anchor rod supporting component (53) comprises a movable sleeve (531) and an upper connecting rod (532), the movable sleeve (531) is axially movably sleeved on the periphery of the anchor rod outer cylinder (51), the edge of the movable sleeve (531) is circumferentially hinged with a plurality of upper connecting rods (532), one ends of the upper connecting rods (532) far away from the movable sleeve (531) are hinged with lower connecting rods (533) through connecting pins (5311), one ends of the lower connecting rods (533) far away from the upper connecting rods (532) are hinged to a fixed sleeve (536) together, and the fixed sleeve (536) is fixedly sleeved on the periphery of the anchor rod outer cylinder (51).
7. The anchor support combined support body for underground space support according to claim 6, wherein the anchor rod support assembly (53) further comprises a screw rod sleeve (535) and an inner connecting rod (537), a through groove (534) corresponding to the position of the upper connecting rod (532) \\ lower connecting rod (533) is formed on the anchor rod outer cylinder (51) between the movable sleeve (531) and the fixed sleeve (536), the screw rod (52) positioned in the through groove (534) is provided with the screw rod sleeve (535) in a manner of being capable of rotating along the circumferential direction thereof, the screw rod sleeve (535) is hinged with a plurality of inner connecting rods (537) along the circumferential direction thereof, each inner connecting rod (537) penetrates through the through groove (534), and one end far away from the screw rod sleeve (535) is hinged with the middle section of the upper connecting rod (532).
8. The anchor support combination support body for underground space support according to claim 7, wherein the part of the screw rod sleeve (535) extending out of the through groove (534) is symmetrically connected with two guide rods (539) in a penetrating way, the upper part of each guide rod (539) extends to the movable sleeve (531) and is fixedly connected with the movable sleeve, the lower part of each guide rod (539) extends through the fixed sleeve (536) and is fixedly connected to the guide rod fixed disc (5310) below the fixed sleeve, and the guide rods (539) can stretch and retract;
the guide rod fixing disc (5310) is fixed on the anchor rod outer cylinder (51).
9. The anchor combined support body for underground space support according to claim 6, wherein a plurality of resistance rollers (538) are arranged on the outer surface of the lower connecting rod (533), the resistance rollers (538) are rollers with bulges on the outer surface, and each resistance roller (538) is connected in series by one resistance roller shaft (5316).
10. The anchor combined support body for underground space support according to claim 9, wherein the connecting pin (5311) is fixedly connected with the upper connecting rod (532), the connecting pin (5311) is rotatably connected with the lower connecting rod (533), a connecting pin connecting rod (5312) is hinged to the outer wall of the connecting pin (533) in the circumferential direction, one end of the connecting pin connecting rod (5312) far away from the connecting pin (5311) is hinged to the locking connecting rod (5313), one end of the locking connecting rod (5313) far away from the connecting pin connecting rod (5312) is rotatably connected to the side surface of the lower connecting rod (533), a locking column (5314) forming a certain angle with the locking connecting rod (5313) is further fixed to one side of the locking connecting rod (5313), a locking disc (5315) is fixed to one end of the resistance roller (5316) close to the connecting pin (5311), and a circular arc bayonet is arranged on the edge of the locking disc (5315) in a circumferential arrangement.
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| CN113418639B (en) * | 2021-06-23 | 2022-08-19 | 山东科技大学 | Integrated device for monitoring mining stress of shallow coal seam |
| CN115045606B (en) * | 2022-06-23 | 2023-04-21 | 保利长大工程有限公司 | Stable supporting structure for crawler-type anchoring drilling machine |
| CN115030150B (en) * | 2022-07-01 | 2023-12-22 | 厦门铖知新材科技有限公司 | Bag anchor rod |
| CN116517596B (en) * | 2023-06-27 | 2023-10-10 | 中铁六局集团太原铁路建设有限公司 | Tunnel supporting structure and supporting method |
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