CN106593484B - It is a kind of at the beginning of tunnel branch construct profile steel frame exempt from weld supporting construction - Google Patents
It is a kind of at the beginning of tunnel branch construct profile steel frame exempt from weld supporting construction Download PDFInfo
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- CN106593484B CN106593484B CN201611238190.6A CN201611238190A CN106593484B CN 106593484 B CN106593484 B CN 106593484B CN 201611238190 A CN201611238190 A CN 201611238190A CN 106593484 B CN106593484 B CN 106593484B
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- special bolt
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 144
- 239000010959 steel Substances 0.000 title claims abstract description 144
- 238000010276 construction Methods 0.000 title claims abstract description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 86
- 229910052742 iron Inorganic materials 0.000 claims abstract description 43
- 238000003466 welding Methods 0.000 claims abstract description 11
- 238000004873 anchoring Methods 0.000 claims description 12
- 210000003205 muscle Anatomy 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- 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
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- 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
- E21D11/34—Joints between vertical props and horizontal top bars
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of profile steel frames constructed for branch at the beginning of tunnel to exempt to weld supporting construction comprising along more Pin fashioned iron steel arch-shelfs that tunnel longitudinal gap is arranged, fashioned iron steel arch-shelf described in every Pin is anchored in tunnel wall by locking foot anchor tube attachment device；It is connected with each other between the adjacent fashioned iron steel arch-shelf by telescopic one-above-the-other layout.It is the configuration of the present invention is simple, easy to install and use, it is connected by assembled between fashioned iron steel arch-shelf and one-above-the-other layout, lock foot device, eliminates welding, avoid the relevant issues such as speed of application caused by welding is slow, pollute, quality is difficult to guarantee；Simultaneously by fashioned iron steel arch-shelf prewelding steel plate, and reserving hole on the steel plate, pilot hole is carried out using hole, facilitates construction.
Description
Technical field
The present invention relates to a kind of Tunnel devices, belong to constructing tunnel field of engineering technology, and in particular to a kind of
The profile steel frame constructed for branch at the beginning of tunnel is exempted to weld supporting construction.
Background technique
Currently, composite lining is widely applied in China's Tunnel Engineering, according to New Austrian Tunneling Method design concept, preliminary bracing is
Primary load bearing structure.The Composite Supporting System that Tunnel is made of gunite concrete, anchor pole, steelframe etc., wherein steel
Frame has biggish supporting intensity and rigidity, can significantly increase preliminary bracing ability.In order to increase the whole steady of every Pin steelframe
It is qualitative, it is attached between adjacent steelframe frequently with longitudinally connected reinforcing bar；In order to which steelframe is anchored at country rock deep, steel is given full play to
The stiffness and strength of frame, steelframe step foot is standing to set lock foot anchor tube.Traditional longitudinally connected reinforcing bar and lock foot and steelframe use
It is welded to connect, existing technology has the following problems:
1, welding has that speed of application is slow in tunnel, does not meet in ten Eight Terms Guidelines of Modelling of Tunnel Excavation in Soft Rock
The requirement of " early closing "；
2, welding generates a large amount of toxic gases, pollutes environment, is unfavorable for the occupational health of construction personnel；
3, since site welding is connected to overhead welding and working space is narrow, welding quality is difficult to ensure；
4, progress weld job is higher to air-conditioning requirement in gas tunnel, and there are certain security risks.
One kind is disclosed in Chinese utility model patent CN205477642U to grow up buried Gas Outburst tunnel solderless branch
Protection structure is made of preliminary bracing steelframe and advance support steel skeleton, and preliminary bracing steelframe is made of more Pin arches, and arch passes through
The lock foot anchor tube being anchored in tunnel wall is fixedly connected with nut；It is fixed between adjacent arch by longitudinally connected pull rod and nut
Connection；The advance support steel skeleton include more protract and the seamless steel pipe for anchoring of being in the milk formed pipe booth structure, every is seamless
Steel pipe corresponds to a grout hole, and multiple grout holes are scattered in two rows, two rows grouting along the top of tunnel control contour line and left and right side
Hole mutual dislocation, and seamless steel pipe when meeting coal seam with the part for being pierced by coal seam, advance support steel skeleton further includes along tunnel
Wall is inclined outwardly the advanced tubule of 40~50 ° of insertion rock stratum or coal seam and more floral tube structures of anchoring of being in the milk.The structure is deposited
Versatility it is poor, cannot inclination angle between the actual condition adjustment anchor tube and steel arch-shelf according to lock foot anchor tube, it cannot be guaranteed that anchor
Pipe and the technical issues of being stably connected with of steel arch-shelf, while also cannot achieve the connection of the fast and stable of steel arch-shelf longitudinal direction.
Summary of the invention
In view of the above-mentioned drawbacks of the prior art, the purpose of the present invention is to solve the deficiency of the above background technology,
There is provided it is a kind of at the beginning of tunnel branch construct profile steel frame exempt from weld supporting construction, be not only simple in structure, be easy to assembly, Er Qieneng
Enough efficiently avoid the relevant issues such as speed of application caused by tunnel welding procedure is slow, pollute, quality is difficult to guarantee.
In order to solve the above technical problems, present invention employs such a profile steel frames constructed for branch at the beginning of tunnel to exempt to weld
Supporting construction comprising the more Pin fashioned iron steel arch-shelfs arranged along tunnel longitudinal gap；Fashioned iron steel arch-shelf described in every Pin passes through lock
Foot anchor tube attachment device is anchored in tunnel wall；Pass through telescopic one-above-the-other layout phase between the adjacent fashioned iron steel arch-shelf
It connects；The lock foot anchor tube attachment device includes the guiding steel plate being fixed on the fashioned iron steel arch-shelf, the guiding steel plate
It is equipped with the pilot hole passed through for lock foot anchor tube；Anchoring connector is installed on pilot hole in the guiding steel plate；The anchoring
Connector is made of anchor head special bolt, nut and two groups of taperliners；The anchor head special bolt pass through pilot hole, described two groups
Taperliner covers on anchor head special bolt and is located at the inside and outside two sides of the guiding steel plate, and the nut is tightened in anchor head
On special bolt, two groups of taperliners and two sides inside and outside guiding steel plate are fitted closely, the central axis of the anchor head special bolt
The end slope of line and the guiding steel plate；The axis direction of the anchor head special bolt is provided with through grouting pipe；It is described
The inner end of anchor head special bolt is connected with lock foot anchor tube；The lock foot anchor tube is installed in tunnel wall；The telescopic longitudinal direction
Attachment device includes the telescopic connection unit of two parallel arrangements；Each telescopic connection unit is by a double end
Screw shell, two longitudinally connected muscle and two limit plate compositions；One end of each longitudinally connected muscle is provided with can be with institute
The external screw thread of double thread bush whorl mating connection is stated, the end of the other end is connected with an institute vertical with center axis thereof
State limit plate；It is connected with each other between two telescopic connection units by connector；The both ends of the connector are arranged
Having can be with the connecting hole of the longitudinally connected muscle sliding connection；One of the telescopic one-above-the-other layout is scalable
Connection unit be installed between the steel web of the adjacent fashioned iron steel arch-shelf and with two steel webs along tunnel longitudinally push up
It connects, another telescopic connection unit of the telescopic one-above-the-other layout is installed on the adjacent fashioned iron steel arch-shelf
The outside of flange plate and with two flange plates along tunnel longitudinally crimp.
In a kind of preferred embodiment of the invention, every group of taperliner includes wedge-shaped rubber backing plate peace steel pad
Plate；The wedge-shaped rubber backing plate and the flat billet coaxial package are on the anchor head special bolt；The flat billet
The tapered end face paste of one end face and the wedge-shaped rubber backing plate is closed, the other end of the flat billet and the guiding steel plate
It is oriented to hole end surface fitting；The planar end surface of the wedge-shaped rubber backing plate is limited by the nut being connected on the anchor head special bolt
It is fixed.
In a kind of preferred embodiment of the invention, the wedge-shaped rubber backing plate inner face and backing plate axis are tilted, outside
End face is vertical with backing plate axis.
In a kind of preferred embodiment of the invention, the anchor head special bolt includes hexagonal bolt head；The hexagonal
Bolt head is located at anchor head special bolt outer end；The nut and anchor head special bolt inner end external screw thread cooperate, two groups of wedge shapes
The pilot hole of gasket and guiding steel plate is between nut and the hexagonal bolt head of anchor head special bolt.
In a kind of preferred embodiment of the invention, the outer end of the anchor head special bolt is disposed with and the Grouting Pipe
The filling adaptor of road connection.
In a kind of preferred embodiment of the invention, the guiding steel plate is welded on the flange plate in advance and and tunnel wall
Face parallel arrangement；The pilot hole is symmetrically disposed on the guiding steel plate of tunnel steelframe both sides.
In a kind of preferred embodiment of the invention, the external screw thread and lock foot anchor tube of the inner end of the anchor head special bolt
The internal screw thread of outer end matches.
In a kind of preferred embodiment of the invention, the limit plate is L shape angle steel limit plate；The L shape angle steel limit
Position plate includes orthogonal interconnecting piece and limiting section；The interconnecting piece along the telescopic connection unit axis direction
It is welded with the telescopic connection unit；The axis of the limiting section and the telescopic connection unit is mutually perpendicular to.
In a kind of preferred embodiment of the invention, a telescopic connection unit of the one-above-the-other layout with
The Figure of eight of the adjacent fashioned iron steel arch-shelf is along tunnel longitudinal direction apical grafting；Another telescopic connection of the one-above-the-other layout
Unit is longitudinally crimped with the steel arch-shelf of the adjacent fashioned iron steel arch-shelf along tunnel, i.e., two telescopic connection units one are to type
Steel steel arch-shelf applies the jacking force along tunnel longitudinal direction, a pressure pulling force applied to fashioned iron steel arch-shelf along tunnel longitudinal direction, thus real
Existing fashioned iron steel arch-shelf is longitudinal to be stably connected with.
In a kind of preferred embodiment of the invention, the telescopic one-above-the-other layout is along the fashioned iron steel arch
The circumferential direction of frame is equally spaced；It is connected to two groups of one-above-the-other layout interlaced arrangements at same fashioned iron steel arch-shelf both ends.
The beneficial effects of the present invention are: it is the configuration of the present invention is simple, easy to install and use, pass through fashioned iron steel arch-shelf and lock foot anchor
Assembly connection between pipe, eliminates welding, avoids the correlations such as speed of application caused by welding is slow, pollute, quality is difficult to guarantee
Problem；Simultaneously by fashioned iron steel arch-shelf prewelding steel plate, and reserving hole on the steel plate, pilot hole is carried out using hole,
Facilitate construction；And the anchoring connector specially designed can replace the different wedge-shaped rubber backing plate of wedge degree according to specific requirement to reality
Existing steelframe and the adjustment for locking foot anchor tube inclination angle；Injected hole is reserved by setting anchoring connector and in anchoring connector, facilitates connection
With construction, accelerate installation speed, fashioned iron steel arch-shelf is fixed by the way that telescopic one-above-the-other layout is arranged, is improved
Installation speed, correction are flexible and convenient, it is ensured that the adjustability connected within the scope of steelframe installation tolerance.
Detailed description of the invention
Fig. 1 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the structural representation of supporting construction
Figure；
Fig. 2 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the vertical along tunnel of supporting construction
To main view；
Fig. 3 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the vertical along tunnel of supporting construction
To top view；
Fig. 4 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the lock foot anchor tube of supporting construction
The guiding steel plate structure schematic diagram of attachment device；
Fig. 5 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the lock foot anchor tube of supporting construction
The structural schematic diagram of attachment device；
Fig. 6 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the lock foot anchor tube of supporting construction
Attachment device explosion diagram；
Fig. 7 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the lock foot anchor tube of supporting construction
The anchoring joint structure schematic diagram of attachment device；
Fig. 8 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the lock foot anchor tube of supporting construction
The structural schematic diagram of the anchor head special bolt of attachment device；
Fig. 9 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the telescopic of supporting construction
The attachment structure schematic diagram of one-above-the-other layout and fashioned iron steel arch-shelf；
Figure 10 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the scalable of supporting construction
One-above-the-other layout structural schematic diagram；
Figure 11 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the fashioned iron steel of supporting construction
The structural schematic diagram of the telescopic connection unit of arch；
Figure 12 is that a kind of profile steel frame constructed for branch at the beginning of tunnel of the embodiment of the present invention is exempted to weld the scalable of supporting construction
Connection unit connector construction schematic diagram；
In figure: A- fashioned iron steel arch-shelf, B- lock foot anchor tube attachment device, the telescopic one-above-the-other layout of C-, the edge of a wing A-1-
Plate, A-2- steel web, B-2- are oriented to steel plate, and B-2-1- is oriented to circular hole；B-3- anchors connector；B-3-1- anchor head special bolt；B-
3-2- wedge-shaped rubber backing plate；The flat billet of B-3-3-；B-3-4- nut；B-3-1-1- filling adaptor；B-3-1-2- special bolt
Head；B-3-1-3- reserves hollow grouting pipe；B-3-1-4- special bolt screw thread；B-4- locks foot anchor tube；B-4-1- locks foot anchor
Pipe end setting internal screw thread, the telescopic connection unit of C-3-, C-4- connector, C-5- double thread sleeve, C-6- longitudinally connect
Connect muscle, C-7- external screw thread, C-8- limit plate, C-4a- connector sleeve, C-4b- connecting rod, C-4a-1- connecting hole, C-8a- interconnecting piece,
C-8b- limiting section.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As Fig. 1 to it is shown in Fig. 2 it is a kind of for tunnel at the beginning of branch construct profile steel frame exempt from weld supporting construction structural representation
Figure is it is found that present invention is mainly used for carryings when tunnel initial-stage construction comprising the more Pin types arranged along tunnel longitudinal gap
Steel steel arch-shelf A, every Pin fashioned iron steel arch-shelf A are anchored in tunnel wall by locking foot anchor tube attachment device B；Adjacent fashioned iron steel arch-shelf A
Between by telescopic one-above-the-other layout C be connected with each other；For the ease of the quick solid of the every Pin fashioned iron steel arch-shelf A of the present invention
Fixed, the lock foot anchor tube attachment device B for fixing fashioned iron steel arch-shelf includes the guiding steel plate B-2 being fixed on fashioned iron steel arch-shelf A,
Guiding steel plate B-2 is equipped with the pilot hole B-2-1 passed through for lock foot anchor tube B-4；It is oriented on the pilot hole B-2-1 in steel plate B-2
Anchoring connector B-3 is installed；Anchoring connector B-3 is made of anchor head special bolt B-3-1, nut B-3-4 and two groups of taperliners；
Anchor head special bolt B-3-1 passes through pilot hole B-2-1, and two groups of taperliners cover on anchor head special bolt B-3-1 and difference position
In the inside and outside two sides of guiding steel plate B-2, nut B-3-4 is tightened on anchor head special bolt B-3-1, by two groups of taperliners with lead
It is fitted closely to two sides inside and outside steel plate B-2, the central axis of anchor head special bolt B-3-1 and the end slope of guiding steel plate B-2；
The axis direction of anchor head special bolt B-3-1 is provided with through grouting pipe B-3-1-3；The inner end of anchor head special bolt B-3-1
It is connected with lock foot anchor tube B-4；Lock foot anchor tube B-4 is installed in tunnel wall, and every group of taperliner includes wedge-shaped rubber backing plate B-3-2
Peaceful billet B-3-3；Wedge-shaped rubber backing plate B-3-2 peace billet B-3-3 coaxial package is in anchor head special bolt B-3-1
On；An end face of flat billet B-3-3 and the tapered end face paste of wedge-shaped rubber backing plate B-3-2 are closed, and flat billet B-3-3's is another
End face is bonded with the end face pilot hole B-2-1 of guiding steel plate B-2；The planar end surface of wedge-shaped rubber backing plate B-3-2 is by being connected to anchor
Nut B-3-4 on head special bolt B-3-1, which is limited, to be fixed；Wedge-shaped rubber backing plate B-3-2 inner face and backing plate axis tilt, outside
End face is vertical with backing plate axis；Anchor head special bolt B-3-1 includes hexagonal bolt head；Hexagonal bolt head is located at anchor head special bolt
The outer end B-3-1；Nut B-3-4 and anchor head special bolt B-3-1 inner end external screw thread cooperate, two groups of taperliners and guiding steel plate 2
Pilot hole B-2-1 be located between nut B-3-4 and the hexagonal bolt head of anchor head special bolt B-3-1；Anchor head special bolt B-
The outer end of 3-1 is disposed with the filling adaptor B-3-1-1 being connected to grouting pipe B-3-1-3；Fashioned iron steel arch-shelf A is by two pieces of parallel cloth
The flange plate A-1 set and the steel web A-2 composition between two pieces of flange plate A-1；Guiding steel plate B-2 is welded in advance along tunnel diameter
It is arranged in parallel on flange plate A-1 outward and with tunnel wall surface；Pilot hole B-2-1 is symmetrically disposed on the tunnel both sides steelframe B-1
Guiding steel plate B-2 on；The external screw thread of the inner end of anchor head special bolt B-3-1 and the internal screw thread of the lock outer end foot anchor tube B-4 match
It closes.Its installation step is as follows:
Step 1: process: in processing factory, processing guiding steel plate B-2 simultaneously reserves pilot hole B-2-1 in two sides, in
Sky lock foot anchor tube B-4 is by steelframe side head setting internal screw thread B-4-1, according to construction and step height requirement, in fashioned iron steel
Arch A prewelding is oriented to steel plate B-2.
Step 2: boring procedure: construction site is excavated, and after the processing of excavation face out break, applies just pneumatically placed concrete, fashioned iron steel
Arch A is in place, installs one-above-the-other layout, and installation quality after the assay was approved, utilizes the pilot hole B- reserved on guiding steel plate B-2
2-1 drills, general by setting downwards with 30-45° angle of horizontal direction degree, studies intensively depth greater than anchor tube length certain distance.
Tubulature process: step 3 after the completion of drilling, locks foot anchor tube B-4 and passes through insertion drilling from pilot hole B-2-1.
Step 4, assembled process: anchor head special bolt B-3-1 first passes through wedge-shaped rubber backing plate B-3-2, flat billet B-3-
3, pilot hole B-2-1, nut B-3-4 and guiding steel plate B-2 assembly clamping, then rotating special bolt head B-3-1-2 makes spiral shell
Bolt bottom is connect with the lock end foot anchor tube B-4, and then rotating nuts B-3-4 locks anchor head B-3 and steel plate B-2, finally by
The filling adaptor B-3-1-1 being arranged on anchor head special bolt B-3-1 carries out slip casting operation, is finally completed lock foot anchor tube by design position
It sets and angle positioning can guarantee that lock foot anchor tube can effectively become one with steelframe again simultaneously.
Step 5 is jetted through journey again: after completing above-mentioned operation, carrying out answering spray operation by design requirement after qualified by inspection, connect
Carry out lower circulation and excavate and supporting operation.
In step 2, the connection between fashioned iron steel arch-shelf A is realized by telescopic one-above-the-other layout C, scalable
One-above-the-other layout C include two parallel arrangement telescopic connection unit C-3；Each telescopic connection unit C-3
It is made of double thread sleeve C -5, two longitudinally connected muscle C-6 and two limit plate C-8；Dowel C-6 longitudinally in each
One end be provided with the external screw thread C-7 that connection can be threadedly engaged with double thread sleeve C -5, the end of the other end is connected with and it
One limit plate C-8 of central axis upright；It is connected with each other between two telescopic connection unit C-3 by connector C-4,
Connector C-4 can be moved freely along the axis direction of connection unit C-3；The connection that connector C-4 is arranged parallel by two
C-4a and connecting rod C-4b composition of set；The both ends of connecting rod C-4b have been respectively and fixedly connected with connector sleeve C-4a, connecting rod C-4b's
The central axis of central axis and connecting hole C-4a-1 is mutually perpendicular to；Be provided on connector sleeve C-4a for longitudinally connected muscle C-
The connecting hole C-4a-1 of 6 sliding connections, limit plate C-8 are L shape angle steel limit plate；L shape angle steel limit plate includes mutually hanging down
Straight interconnecting piece C-8a and limiting section C-8b；Interconnecting piece C-8a along telescopic connection unit C-3 axis direction with can stretch
The connection unit C-3 of contracting is welded；Limiting section C-8b and the axis of telescopic connection unit C-3 are mutually perpendicular to, telescopic vertical
Be installed between the steel web A-2 of adjacent fashioned iron steel arch-shelf A to a telescopic connection unit C-3 of attachment device C and with
Two steel web A-2 are along tunnel longitudinal direction apical grafting, another telescopic connection unit C-3 of telescopic one-above-the-other layout C
It is installed on the outside of the flange plate A-1 of adjacent fashioned iron steel arch-shelf A and is longitudinally crimped with two flange plate A-1 along tunnel；It is connected to
Two groups of one-above-the-other layout C interlaced arrangements at the same both ends fashioned iron steel arch-shelf A.
It should be understood that the above description is merely a specific embodiment, but protection scope of the present invention is not
Be confined to this, anyone skilled in the art within the technical scope disclosed by the invention, the variation that can be readily occurred in
Or replacement, it should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of profile steel frame constructed for branch at the beginning of tunnel is exempted to weld supporting construction, more including arranging along tunnel longitudinal gap
Pin fashioned iron steel arch-shelf (A)；Fashioned iron steel arch-shelf (A) described in every Pin is anchored in tunnel wall by locking foot anchor tube attachment device (B)；Phase
It is connected with each other between the adjacent fashioned iron steel arch-shelf (A) by telescopic one-above-the-other layout (C)；It is characterized by:
Lock foot anchor tube attachment device (B) includes the guiding steel plate (B-2) being fixed on the fashioned iron steel arch-shelf (A), described
Guiding steel plate (B-2) is equipped with the pilot hole (B-2-1) passed through for lock foot anchor tube (B-4)；Leading in guiding steel plate (B-2)
Anchoring connector (B-3) is installed on hole (B-2-1)；The anchoring connector (B-3) is by anchor head special bolt (B-3-1), nut
(B-3-4) it is formed with two groups of taperliners；The anchor head special bolt (B-3-1) passes through pilot hole (B-2-1), two groups of wedges
Shape gasket covers on anchor head special bolt (B-3-1) and is located at the inside and outside two sides of guiding steel plate (B-2), the nut
(B-3-4) it is tightened on anchor head special bolt (B-3-1), two groups of taperliners and two sides inside and outside guiding steel plate (B-2) are close
Fitting, the end slope of the central axis of the anchor head special bolt (B-3-1) and guiding steel plate (B-2)；The anchor head
The axis direction of special bolt (B-3-1) is provided with through grouting pipe (B-3-1-3)；The anchor head special bolt (B-3-1)
Inner end with lock foot anchor tube (B-4) be connected；The lock foot anchor tube (B-4) is installed in tunnel wall；
The telescopic one-above-the-other layout (C) includes the telescopic connection unit (C-3) of two parallel arrangements；Each institute
Telescopic connection unit (C-3) is stated by a double thread sleeve (C-5), two longitudinally connected muscle (C-6) and two limits
Plate (C-8) composition；One end of each longitudinally connected muscle (C-6) is provided with can be with double thread sleeve (C-5) screw thread
The external screw thread (C-7) of mating connection, the end of the other end are connected with one vertical with center axis thereof limit plate (C-
8)；It is connected with each other between two telescopic connection units (C-3) by connector (C-4)；The connector (C-4)
Both ends are provided with can be with the connecting hole (C-4a-1) of longitudinally connected muscle (C-6) sliding connection；It is described telescopic vertical
The steel web of the adjacent fashioned iron steel arch-shelf (A) is installed on to a telescopic connection unit (C-3) of attachment device (C)
(A-2) along tunnel longitudinal direction apical grafting between and with two steel webs (A-2), the telescopic one-above-the-other layout (C)
Another telescopic connection unit (C-3) be installed on the outside of the flange plate (A-1) of the adjacent fashioned iron steel arch-shelf (A) and with
Two flange plates (A-1) longitudinally crimp along tunnel.
2. a kind of profile steel frame constructed for branch at the beginning of tunnel according to claim 1 is exempted to weld supporting construction, feature exists
In: taperliner described in every group includes the peaceful billet (B-3-3) of wedge-shaped rubber backing plate (B-3-2)；The wedge-shaped rubber backing plate
(B-3-2) and flat billet (B-3-3) coaxial package is on the anchor head special bolt (B-3-1)；The flat billet
(B-3-3) the tapered end face paste of an end face and the wedge-shaped rubber backing plate (B-3-2) is closed, the flat billet (B-3-3)
Other end is bonded with end face pilot hole (B-2-1) of guiding steel plate (B-2)；The wedge-shaped rubber backing plate (B-3-2)
Planar end surface is fixed by nut (B-3-4) limit being connected on the anchor head special bolt (B-3-1).
3. a kind of profile steel frame constructed for branch at the beginning of tunnel according to claim 2 is exempted to weld supporting construction, feature exists
In: wedge-shaped rubber backing plate (B-3-2) inner face and backing plate axis tilt, and outer end face is vertical with backing plate axis.
4. a kind of profile steel frame constructed for branch at the beginning of tunnel according to claim 1 is exempted to weld supporting construction, feature exists
In: the anchor head special bolt (B-3-1) includes hexagonal bolt head；The hexagonal bolt head is located at anchor head special bolt (B-3-
1) outer end；The nut (B-3-4) and anchor head special bolt (B-3-1) inner end external screw thread cooperate, two groups of taperliners and
The pilot hole (B-2-1) of guiding steel plate (2) be located at nut (B-3-4) and anchor head special bolt (B-3-1) hexagonal bolt head it
Between.
5. a kind of profile steel frame constructed for branch at the beginning of tunnel according to claim 1 is exempted to weld supporting construction, feature exists
In: the outer end of the anchor head special bolt (B-3-1) is disposed with the filling adaptor being connected to the grouting pipe (B-3-1-3)
(B-3-1-1)。
6. a kind of profile steel frame constructed for branch at the beginning of tunnel according to claim 1 is exempted to weld supporting construction, feature exists
In: the guiding steel plate (B-2) is welded on the flange plate (A-1) in advance and is arranged in parallel with tunnel wall surface；Pilot hole (the B-
It 2-1) is symmetrically disposed on the guiding steel plate (B-2) of the both sides tunnel steelframe (B-1).
7. a kind of profile steel frame constructed for branch at the beginning of tunnel according to any claim from 1 to 6 is exempted to weld supporting
Structure, it is characterised in that: the external screw thread of the inner end of the anchor head special bolt (B-3-1) is interior with lock outer end foot anchor tube (B-4)
Screw thread matches.
8. a kind of profile steel frame constructed for branch at the beginning of tunnel according to claim 1 is exempted to weld supporting construction, feature exists
In: the limit plate (C-8) is L shape angle steel limit plate；The L shape angle steel limit plate includes orthogonal interconnecting piece (C-8a)
With limiting section (C-8b)；The interconnecting piece (C-8a) along the telescopic connection unit (C-3) axis direction with it is described
Telescopic connection unit (C-3) welding；The axis phase of the limiting section (C-8b) and the telescopic connection unit (C-3)
It is mutually vertical.
9. a kind of profile steel frame constructed for branch at the beginning of tunnel according to claim 1 is exempted to weld supporting construction, feature exists
In: the connector (C-4) is made of two connector sleeves being arranged parallel (C-4a) and a connecting rod (C-4b)；It is described
The both ends of connecting rod (C-4b) have been respectively and fixedly connected with the connector sleeve (C-4a), the central axis of the connecting rod (C-4b) with it is described
The central axis of connecting hole (C-4a-1) is mutually perpendicular to；Be provided on the connector sleeve (C-4a) for the longitudinally connected muscle
(C-6) connecting hole (C-4a-1) being slidably connected.
10. a kind of profile steel frame constructed for branch at the beginning of tunnel according to claim 1 is exempted to weld supporting construction, feature exists
In: the telescopic one-above-the-other layout (C) is equally spaced along the circumferential direction of the fashioned iron steel arch-shelf (A)；It is connected to same
Two groups of one-above-the-other layout (C) interlaced arrangements at one both ends fashioned iron steel arch-shelf (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611238190.6A CN106593484B (en) | 2016-12-28 | 2016-12-28 | It is a kind of at the beginning of tunnel branch construct profile steel frame exempt from weld supporting construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611238190.6A CN106593484B (en) | 2016-12-28 | 2016-12-28 | It is a kind of at the beginning of tunnel branch construct profile steel frame exempt from weld supporting construction |
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| CN106593484A CN106593484A (en) | 2017-04-26 |
| CN106593484B true CN106593484B (en) | 2019-02-05 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676113B (en) * | 2017-11-14 | 2024-02-20 | 云南省建筑科学研究院 | Telescopic tunnel supporting operation trolley |
| CN109252876B (en) * | 2018-06-26 | 2024-05-10 | 中铁五局集团贵州工程有限公司 | Advance little pipe angle positioner |
| CN111764941B (en) * | 2020-03-27 | 2021-09-03 | 同济大学 | Tunnel prefabricated steel arch frame reinforcing method |
| CN111335924A (en) * | 2020-03-30 | 2020-06-26 | 中铁隧道集团二处有限公司 | Connecting structure between lock pin anchor pipe and steel frame and mounting method thereof |
| CN114482607B (en) * | 2022-02-17 | 2023-06-09 | 成都建筑材料工业设计研究院有限公司 | Construction method for additionally installing steel plate layer on inner wall of reinforced concrete silo |
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