CN106593485A - Sectional steel frame welding-free fast assembly support structure for tunnel primary support construction - Google Patents
Sectional steel frame welding-free fast assembly support structure for tunnel primary support construction Download PDFInfo
- Publication number
- CN106593485A CN106593485A CN201611239341.XA CN201611239341A CN106593485A CN 106593485 A CN106593485 A CN 106593485A CN 201611239341 A CN201611239341 A CN 201611239341A CN 106593485 A CN106593485 A CN 106593485A
- Authority
- CN
- China
- Prior art keywords
- steel
- tunnel
- anchor head
- special bolt
- shelf
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 178
- 239000010959 steel Substances 0.000 title claims abstract description 178
- 238000010276 construction Methods 0.000 title claims abstract description 57
- 229920001971 elastomer Polymers 0.000 claims description 19
- 239000005060 rubber Substances 0.000 claims description 19
- 238000004873 anchoring Methods 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 238000010030 laminating Methods 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000004567 concrete Substances 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
- 239000007921 spray Substances 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
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 238000007569 slipcasting Methods 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 sectional steel frame welding-free fast assembly support structure for tunnel primary support construction. The sectional steel frame welding-free fast assembly support structure comprises a plurality of trusses of grid steel arch frames arranged in the longitudinal direction of a tunnel at intervals; each truss of grid steel arch frame is anchored on the tunnel wall through a lock pin anchor pipe connecting device; and the adjacent grid steel arch frames are mutually connected through a longitudinal connection device. The sectional steel frame welding-free fast assembly support structure has the advantages that the structure is simple; the installation and the use are convenient; through the splicing connection among the grid steel arch frames, the longitudinal connection device and a lock pin device, the welding is avoided; relevant problems of low construction speed, pollution, difficult quality guarantee and the like caused by welding are solved; meanwhile, a steel plate is welded in advance on the grid steel arch frames; holes are reserved in the steel plates; holes can be used for guiding hole drilling; and the construction is convenient.
Description
Technical field
The present invention relates to a kind of Tunnel device, belongs to constructing tunnel field of engineering technology, and in particular to a kind of
Profile steel frame at the beginning of tunnel construction is exempted to weld quick assembling supporting construction.
Background technology
At present, composite lining is extensively applied in China's Tunnel Engineering, and according to New Austrian Tunneling Method design concept, preliminary bracing is
Primary load bearing structure.The Composite Supporting System that Tunnel is made up of gunite concrete, anchor pole, steelframe etc., wherein steel
Frame has larger supporting intensity and rigidity, can significantly increase preliminary bracing ability.In order to increase the overall steady of every Pin steelframes
It is qualitative, it is attached frequently with longitudinally connected reinforcing bar between adjacent steelframe；In order to steelframe is anchored at into country rock deep, steel is given full play to
The rigidity and intensity of frame, steelframe step foot is standing to put lock pin anchor tube.Traditional longitudinally connected reinforcing bar and lock pin is adopted with steelframe
It is welded to connect, existing technology has problems with：
1st, welding has that speed of application is slow in tunnel, in not meeting the Eight Terms Guidelines of Modelling of Tunnel Excavation in Soft Rock ten
The requirement of " early closing "；
2nd, welding produces a large amount of toxic gases, pollutes environment, is unfavorable for the occupational health of workmen；
3rd, because site welding is connected to overhead welding and working space is narrow, welding quality is difficult to ensure that；
4th, weld job is carried out in gas tunnel higher to air-conditioning requirement, there is certain potential safety hazard.
Disclose one kind in Chinese utility model patent CN 205477642U to grow up buried Gas Outburst tunnel solderless
Protection structure, is made up of preliminary bracing steelframe and advance support steel skeleton, and preliminary bracing steelframe is made up of many Pin bow members, and bow member passes through
The lock pin anchor tube being anchored in tunnel wall is fixedly connected with nut；Fixed by longitudinally connected pull bar and nut between adjacent bow member
Connection；The advance support steel skeleton protracts including many and the seamless steel pipe of anchoring of being in the milk forms pipe booth structure, seamless per root
Steel pipe one grout hole of correspondence, multiple grout holes are scattered in two rows, two irrigation and drainage slurry along the top of tunnel control outline line and left and right side
Hole mutual dislocation, and seamless steel pipe meet coal seam when also include along tunnel with the part for passing coal seam, advance support steel skeleton
The advanced tubule of many floral tube structures of outward-dipping 40～50 ° of insertion rock stratum of wall or coal seam and anchoring of being in the milk.The structure is deposited
Versatility it is poor, can not according to lock pin anchor tube actual condition adjustment anchor tube and steel arch-shelf between inclination angle, it cannot be guaranteed that anchor
The technical problem being stably connected with of pipe and steel arch-shelf, while cannot also realize the connection of the fast and stable of steel arch-shelf longitudinal direction.
The content of the invention
For the defect that above-mentioned prior art is present, present invention aim to the deficiency of above-mentioned background technology is solved,
There is provided a kind of profile steel frame at the beginning of tunnel construction to exempt to weld quick assembling supporting construction, it is not only simple in structure, assembling side
Just, and the slow speed of application that tunnel welding procedure causes, pollution, quality can be efficiently avoid it is difficult to ensure that the correlations such as card are asked
Topic.
To solve above-mentioned technical problem, such a is present invention employs at the beginning of the tunnel profile steel frame constructed and exempt from weldering
Quick assembling supporting construction, it includes many Pin shaped steel steel arch-shelfs along the longitudinally spaced arrangement in tunnel, shaped steel steel arch described in per Pin
Frame is anchored in tunnel wall by locking pin anchor tube attachment means；Pass through one-above-the-other layout phase between the adjacent shaped steel steel arch-shelf
Connect；The lock pin anchor tube attachment means include the guiding steel plate being fixed on the shaped steel steel arch-shelf, the guiding steel plate
It is provided with the pilot hole passed through for lock pin anchor tube；Anchoring joint is installed on pilot hole in the guiding steel plate；The anchoring
Joint is made up of anchor head special bolt, nut and two groups of taperliners；The anchor head special bolt pass through pilot hole, described two groups
Taperliner is enclosed within anchor head special bolt and is located at respectively the inside and outside two sides of the guiding steel plate, and the nut screwing clamping is in anchor head
On special bolt, two groups of taperliners are brought into close contact with two sides inside and outside steel plate is oriented to, the central shaft of the anchor head special bolt
Line and the end slope for being oriented to steel plate；The axis direction of the anchor head special bolt is provided through grouting pipe；It is described
The inner of anchor head special bolt is connected with lock pin anchor tube；The lock pin anchor tube is installed in tunnel wall；Shaped steel steel arch described in per Pin
Multiple slotted holes having for connecting the one-above-the-other layout are provided with the steel web of frame；The one-above-the-other layout is two
End is provided with externally threaded longitudinally connected reinforcing bar；The two ends of the longitudinally connected reinforcing bar are each passed through the two neighboring shaped steel
Slotted hole on steel arch-shelf is simultaneously realized affixed with the shaped steel steel arch-shelf by locking nut.
In a kind of preferred embodiment of the present 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
End face is fitted with the wedge shape end face of the wedge-shaped rubber backing plate, the other end of the flat billet and described is oriented to steel plate
It is oriented to hole end surface laminating；The planar end surface of the wedge-shaped rubber backing plate is spacing by the nut being connected on the anchor head special bolt
It is fixed.
In a kind of preferred embodiment of the present invention, the wedge-shaped rubber backing plate inner face is inclined with backing plate axis, outward
End face is vertical with backing plate axis.
In a kind of preferred embodiment of the present 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 coordinates with anchor head special bolt the inner external screw thread, two groups of wedge shapes
The pilot hole of pad and guiding steel plate is located between nut and the hexagonal bolt head of anchor head special bolt.
In a kind of preferred embodiment of the present invention, the outer end of the anchor head special bolt is disposed with and the Grouting Pipe
The filling adaptor of road connection.
It is described to be oriented to the flange plate that steel plate is welded in advance the shaped steel steel arch-shelf in a kind of preferred embodiment of the present invention
It is arranged in parallel above and with tunnel wall；The pilot hole is symmetricly set on the guiding steel plate of tunnel steelframe both sides.
In a kind of preferred embodiment of the present invention, inner external screw thread and the lock pin anchor tube of the anchor head special bolt
The internal thread of outer end is engaged.
In a kind of preferred embodiment of the present invention, ring equidistant placement of the slotted hole along the shaped steel steel arch-shelf
On the steel web；Axis of symmetry weight of the slotted hole axis of symmetry circumferentially with the steel web circumferentially.
In a kind of preferred embodiment of the present invention, the length of longitudinally connected reinforcing bar is steelframe longitudinal pitch+steelframe peace
The longitudinal tolerance value of dress.
In a kind of preferred embodiment of the present invention, the slotted hole on junction steel plate is waist-shaped hole.
In a kind of preferred embodiment of the present invention, the two neighboring connection steel of same shaped steel steel arch-shelf homonymy is welded in
Spacing between plate 2 is equal to length/2 of longitudinally connected reinforcing bar 3.
The invention has the beneficial effects as follows：Present configuration is simple, easy to install, by shaped steel steel arch-shelf and lock pin anchor
Assembled connection between pipe, eliminate welding, it is to avoid speed of application that welding causes is slow, pollution, quality are difficult to ensure and the correlation such as demonstrate,prove
Problem；Simultaneously by shaped steel steel arch-shelf prewelding steel plate, and the reserving hole on steel plate, pilot hole is carried out using hole,
Convenient construction；And the anchoring joint for specially designing can replace the different wedge-shaped rubber backing plate of wedge degree so as to reality according to specific requirement
Existing steelframe and the adjustment for locking pin anchor tube inclination angle；Reserve in joint injected hole by arranging anchoring joint and anchoring, convenient connection
With construction, accelerate installation rate, shaped steel steel arch-shelf is fixed by arranging one-above-the-other layout, improve installation speed
Degree, correction is flexible, it is ensured that the adjustability connected in the range of tolerance is installed in steelframe.
Description of the drawings
Fig. 1 is that a kind of profile steel frame at the beginning of tunnel construction of the embodiment of the present invention is exempted to weld quick assembling supporting construction
Structural representation；
Fig. 2 is that a kind of profile steel frame at the beginning of tunnel construction of the embodiment of the present invention is exempted to weld quick assembling supporting construction
Along the front view of tunnel longitudinal direction；
Fig. 3 is that a kind of profile steel frame at the beginning of tunnel construction of the embodiment of the present invention is exempted to weld quick assembling supporting construction
Along the top view of tunnel longitudinal direction；
Fig. 4 is that a kind of profile steel frame at the beginning of tunnel construction of the embodiment of the present invention is exempted to weld quick assembling supporting construction
The guiding steel plate structure schematic diagram of lock pin anchor tube attachment means；
Fig. 5 is that a kind of profile steel frame at the beginning of tunnel construction of the embodiment of the present invention is exempted to weld quick assembling supporting construction
The structural representation of lock pin anchor tube attachment means；
Fig. 6 is that a kind of profile steel frame at the beginning of tunnel construction of the embodiment of the present invention is exempted to weld quick assembling supporting construction
Lock pin anchor tube attachment means blast diagram；
Fig. 7 is that a kind of profile steel frame at the beginning of tunnel construction of the embodiment of the present invention is exempted to weld quick assembling supporting construction
The anchoring joint design schematic diagram of lock pin anchor tube attachment means；
Fig. 8 is that a kind of profile steel frame at the beginning of tunnel construction of the embodiment of the present invention is exempted to weld quick assembling supporting construction
The structural representation of the anchor head special bolt of lock pin anchor tube attachment means；
Fig. 9 is that a kind of profile steel frame at the beginning of tunnel construction of the embodiment of the present invention is exempted to weld quick assembling supporting construction
The attachment structure schematic diagram of one-above-the-other layout and shaped steel steel arch-shelf；
Figure 10 is that a kind of profile steel frame at the beginning of tunnel construction of the embodiment of the present invention is exempted to weld quick assembling supporting construction
One-above-the-other layout longitudinally connected bar construction schematic diagram；
Figure 11 is that a kind of profile steel frame at the beginning of tunnel construction of the embodiment of the present invention is exempted to weld quick assembling supporting construction
One-above-the-other layout steel web on slotted hole schematic diagram；
In figure：A- shaped steel steel arch-shelfs, B- lock pin anchor tube attachment means, C- one-above-the-other layouts, A-1- steel webs, the A-2- wings
Listrium, B-2 is oriented to steel plate, and B-2-1- is oriented to circular hole；B-3- anchors joint；B-3-1- anchor head special bolts；B-3-2- wedge shape rubbers
Rubber cushion plate；The flat billets of B-3-3-；B-3-4- nuts；B-3-1-1- filling adaptors；B-3-1-2- special bolt heads；B-3-1-
3- reserves hollow grouting pipe；B-3-1-4- special bolt screw threads；B-4- locks pin anchor tube；In B-4-1- lock pin anchor tubes termination is arranged
Screw thread, C-3- slotted holes, the longitudinally connected reinforcing bars of C-4-, C-5- locking nuts, C-6- external screw threads.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
A profile steel frame for a construction is exempted to weld quick assembling supporting construction by the beginning of a kind of shown in Fig. 1 to Fig. 2 is for tunnel
Structural representation understands that, present invention is mainly used for carrying when tunnel initial-stage is constructed, it includes arrangement longitudinally spaced along tunnel
Many Pin shaped steel steel arch-shelf A, per Pin shaped steel steel arch-shelf A by lock pin anchor tube attachment means B be anchored in tunnel wall；Adjacent shaped steel
It is connected with each other by one-above-the-other layout C between steel arch-shelf A；For the ease of quick fixation of the present invention per Pin shaped steel steel arch-shelf A,
Lock pin anchor tube attachment means B for fixing shaped steel steel arch-shelf include the guiding steel plate B-2 being fixed on shaped steel steel arch-shelf A, lead
The pilot hole B-2-1 passed through for lock pin anchor tube B-4 is provided with to steel plate B-2；It is oriented on the pilot hole B-2-1 in steel plate B-2 and pacifies
Equipped with anchoring joint B-3；Anchoring joint B-3 is made up 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, two groups of taperliners to be enclosed within anchor head special bolt B-3-1 and be located at respectively
The inside and outside two sides of steel plate B-2 is oriented to, nut B-3-4 is tightened on anchor head special bolt B-3-1, by two groups of taperliners and guiding
Two sides is brought into close contact inside and outside steel plate B-2, the central axis of anchor head special bolt B-3-1 and the end slope for being oriented to steel plate B-2；Anchor
The axis direction of head special bolt B-3-1 is provided through grouting pipe B-3-1-3；The inner of anchor head special bolt B-3-1 with
Lock pin anchor tube B-4 is connected；Lock pin anchor tube B-4 is installed in tunnel wall, every group of taperliner include wedge-shaped rubber backing plate B-3-2 and
Flat billet B-3-3；Wedge-shaped rubber backing plate B-3-2 peace billet B-3-3 coaxial packages are on anchor head special bolt B-3-1；
The end face of flat billet B-3-3 is fitted with the wedge shape end face of wedge-shaped rubber backing plate B-3-2, the other end of flat billet B-3-3
Fit with the pilot hole B-2-1 end faces for being oriented to steel plate B-2 in face；The planar end surface of wedge-shaped rubber backing plate B-3-2 is by being connected to anchor head
The spacing fixations of nut B-3-4 on special bolt B-3-1；Wedge-shaped rubber backing plate B-3-2 inner faces are inclined with backing plate axis, outer 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 B-
3-1 outer ends；The external screw thread cooperation of nut B-3-4 and anchor head special bolt B-3-1 the inners, two groups of taperliners and guiding steel plate 2
Pilot hole B-2-1 is located between nut B-3-4 and the hexagonal bolt head of anchor head special bolt B-3-1；Anchor head special bolt B-3-1
Outer end be disposed with the filling adaptor B-3-1-1 connected with grouting pipe B-3-1-3；Shaped steel steel arch-shelf A is arranged in parallel by two
Flange plate A-2 and be connected between two flange plate A-2 steel web A-1 composition；It is oriented to steel plate B-2 and is welded in top flange plate A- in advance
It is arranged in parallel on 2 and with tunnel wall；Pilot hole B-2-1 is symmetricly set on the guiding steel plate B-2 of tunnel steelframe B-1 both sides；
The inner external screw thread of anchor head special bolt B-3-1 is engaged with the internal thread of lock pin anchor tube B-4 outer ends.Every Pin types of the present invention
Multiple slotted hole C-3 having for connecting one-above-the-other layout C are provided with the steel web A-1 of steel steel arch-shelf A；Longitudinally connected dress
Put C and be provided with externally threaded longitudinally connected reinforcing bar C-4 for two ends；The two ends of longitudinally connected reinforcing bar C-4 are each passed through adjacent two
Slotted hole C-3 on individual shaped steel steel arch-shelf A and realized by locking nut C-5 and shaped steel steel arch-shelf A affixed, slotted hole C-3
Ring equidistant placement along shaped steel steel arch-shelf A is on steel web A-1；The slotted hole C-3 axis of symmetry circumferentially and steel web A-1
The axis of symmetry circumferentially overlaps；The length of longitudinally connected reinforcing bar C-4 is that steelframe longitudinal pitch installs longitudinal direction permission plus steelframe
Deviation.
Its installation step of the invention is as follows：
Step one：Process：In processing factory, processing is oriented to steel plate B-2 and in the reserved pilot hole B-2-1 in both sides, in
Sky lock pin anchor tube B-4 arranges internal thread B-4-1 by steelframe side head, and processing is with length on the steel web A-1 of shaped steel steel arch-shelf A
Circular hole C-3, requires according to construction and shoulder height, and in shaped steel steel arch-shelf A preweldings steel plate B-2 is oriented to.
Step 2：Boring procedure：Job site is excavated, and after the process of excavation face out break, applies just pneumatically placed concrete, shaped steel steel
Bow member A is in place, install one-above-the-other layout, installation quality after the assay was approved, using be oriented to steel plate B-2 on reserve pilot hole B-
2-1 is drilled, general by setting downwards with horizontal direction 30-45° angle degree, studies intensively depth more than anchor tube length certain distance.
Step 3, tubulature process：After the completion of drilling, lock pin anchor tube B-4 is from pilot hole B-2-1 through insertion drilling.
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-
3rd, pilot hole B-2-1, nut B-3-4 are clamped with steel plate B-2 assembly is oriented to, and then rotating special bolt head B-3-1-2 makes spiral shell
Bolt bottom is connected with lock pin anchor tube B-4 terminations, and then rotating nut B-3-4 locks anchor head B-3 and steel plate B-2, finally by
The filling adaptor B-3-1-1 arranged on anchor head special bolt B-3-1 carries out slip casting operation, is finally completed lock pin anchor tube by design position
Put and angle positioning can guarantee that lock pin anchor tube can effectively become one with steelframe again simultaneously.
Step 5, multiple spray process：After completing above-mentioned operation, it is qualified by inspection after carry out multiple spray operation by design requirement, connect
Carries out lower circulation excavation and supporting operation.
It should be appreciated that the above, specific embodiment only of the invention, but protection scope of the present invention is not
Be confined to this, any those of ordinary skill in the art disclosed herein technical scope in, the change that can be readily occurred in
Or replace, all should be included within the scope of the present invention.
Claims (9)
1. a kind of profile steel frame at the beginning of tunnel construction is exempted to weld quick assembling supporting construction, including longitudinally spaced along tunnel
Many Pin shaped steel steel arch-shelfs (A) of arrangement, shaped steel steel arch-shelf (A) is anchored at tunnel by lock pin anchor tube attachment means (B) described in per Pin
On road wall；It is connected with each other by one-above-the-other layout (C) between the adjacent shaped steel steel arch-shelf (A)；It is characterized in that：
Lock pin anchor tube attachment means (B) includes the guiding steel plate (B-2) being fixed on the shaped steel steel arch-shelf (A), described
It is oriented to steel plate (B-2) and is provided with the pilot hole (B-2-1) passed through for lock pin anchor tube (B-4)；Leading in guiding steel plate (B-2)
Anchoring joint (B-3) is installed on hole (B-2-1)；Anchoring joint (B-3) is by anchor head special bolt (B-3-1), nut
(B-3-4) constitute 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 pad is enclosed within anchor head special bolt (B-3-1) and is located at respectively 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), by two groups of taperliners with to be oriented to two sides inside and outside steel plate (B-2) tight
Laminating, the central axis of the anchor head special bolt (B-3-1) and the end slope for being oriented to steel plate (B-2)；The anchor head
The axis direction of special bolt (B-3-1) is provided through grouting pipe (B-3-1-3)；The anchor head special bolt (B-3-1)
The inner with lock pin anchor tube (B-4) be connected；Lock pin anchor tube (B-4) is installed in tunnel wall；
Being provided with steel web (A-1) per shaped steel steel arch-shelf (A) described in Pin multiple has for connecting the one-above-the-other layout
(C) slotted hole (C-3)；The one-above-the-other layout (C) is provided with externally threaded longitudinally connected reinforcing bar (C-4) for two ends；
The two ends of the longitudinally connected reinforcing bar (C-4) be each passed through the slotted hole (C-3) on the two neighboring shaped steel steel arch-shelf (A) and
Realized by locking nut (C-5) affixed with the shaped steel steel arch-shelf (A).
2. a kind of profile steel frame at the beginning of tunnel construction according to claim 1 is exempted to weld quick assembling supporting construction,
It is characterized in that：Every group of taperliner includes wedge-shaped rubber backing plate (B-3-2) peace billet (B-3-3)；The wedge shape
Rubber mat plate (B-3-2) and flat billet (B-3-3) coaxial package are on the anchor head special bolt (B-3-1)；It is described
The end face of flat billet (B-3-3) is fitted with the wedge shape end face of the wedge-shaped rubber backing plate (B-3-2), the flat billet
(B-3-3) fit with pilot hole (B-2-1) end face of guiding steel plate (B-2) other end；The wedge-shaped rubber backing plate
(B-3-2) planar end surface is by the spacing fixation of nut (B-3-4) that is connected on the anchor head special bolt (B-3-1).
3. a kind of profile steel frame at the beginning of tunnel construction according to claim 2 is exempted to weld quick assembling supporting construction,
It is characterized in that：Wedge-shaped rubber backing plate (B-3-2) inner face is inclined with backing plate axis, and outer face is vertical with backing plate axis.
4. a kind of profile steel frame at the beginning of tunnel construction according to claim 1 is exempted to weld quick assembling supporting construction,
It is characterized in that：The anchor head special bolt (B-3-1) includes hexagonal bolt head；The hexagonal bolt head is located at the special spiral shell of anchor head
Bolt (B-3-1) outer end；The nut (B-3-4) coordinates with anchor head special bolt (B-3-1) the inner external screw thread, two groups of wedge shapes
The pilot hole (B-2-1) of pad and guiding steel plate (2) is located at the hexagonal spiral shell of nut (B-3-4) and anchor head special bolt (B-3-1)
Between bolt head.
5. a kind of profile steel frame at the beginning of tunnel construction according to claim 1 is exempted to weld quick assembling supporting construction,
It is characterized in that：The outer end of the anchor head special bolt (B-3-1) is disposed with the note connected with the grouting pipe (B-3-1-3)
Slurry joint (B-3-1-1).
6. a kind of profile steel frame at the beginning of tunnel construction according to claim 1 is exempted to weld quick assembling supporting construction,
It is characterized in that：Guiding steel plate (B-2) is welded in advance on the flange plate (A-2) of the shaped steel steel arch-shelf (A) and and tunnel wall
Face is arranged in parallel；The pilot hole (B-2-1) is symmetricly set on the guiding steel plate (B-2) of tunnel steelframe (B-1) both sides.
7. a kind of profile steel frame of at the beginning of for the tunnel construction according to claim 1-6 any claim exempts from weldering quickly
Assembling supporting construction, it is characterised in that：The inner external screw thread of the anchor head special bolt (B-3-1) and lock pin anchor tube (B-4)
The internal thread of outer end is engaged.
8. a kind of profile steel frame at the beginning of tunnel construction according to claim 1 is exempted to weld quick assembling supporting construction,
It is characterized in that：The slotted hole (C-3) along the shaped steel steel arch-shelf (A) ring equidistant placement in the steel web (A-1)
On；The axis of symmetry of the slotted hole (C-3) axis of symmetry circumferentially with the steel web (A-1) circumferentially overlaps.
9. a kind of profile steel frame at the beginning of tunnel construction according to claim 1 is exempted to weld quick assembling supporting construction,
It is characterized in that：The slotted hole (C-3) is waist-shaped hole shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611239341.XA CN106593485B (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 quick assembling supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611239341.XA CN106593485B (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 quick assembling supporting construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593485A true CN106593485A (en) | 2017-04-26 |
| CN106593485B CN106593485B (en) | 2019-02-05 |
Family
ID=58603080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611239341.XA Active CN106593485B (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 quick assembling supporting construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593485B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424987A (en) * | 2019-07-30 | 2019-11-08 | 周建辉 | It is a kind of to be convenient for the device fixed to steel arch-shelf for constructing tunnel |
| CN110566241A (en) * | 2019-09-16 | 2019-12-13 | 四川睿铁科技有限责任公司 | Quickly-assembled supporting shed frame |
| CN111441795A (en) * | 2020-05-19 | 2020-07-24 | 四川路航建设工程有限责任公司 | Fireless operation construction method for primary support of gas tunnel |
| CN112814715A (en) * | 2021-01-07 | 2021-05-18 | 中铁十六局集团第三工程有限公司 | Novel locking anchor pipe construction fixing device and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202202874U (en) * | 2011-07-28 | 2012-04-25 | 中铁二十二局集团第六工程有限公司 | Gate-type arc-shaped steel frame for tunnel reinforcement |
| CN202991054U (en) * | 2012-12-25 | 2013-06-12 | 中鼎国际工程有限责任公司 | Novel mine tunnel supporting structure |
| CN205063959U (en) * | 2015-08-28 | 2016-03-02 | 大连海事大学 | Tunnel supporting construction suitable for last soft hard ground layer down |
| CN205445635U (en) * | 2016-03-29 | 2016-08-10 | 中国电建集团华东勘测设计研究院有限公司 | Shaped steel bow member supporting construction of tunnel excavation in -process |
| CN206513386U (en) * | 2016-12-28 | 2017-09-22 | 中铁第四勘察设计院集团有限公司 | A kind of profile steel frame for tunnel just branch construction is exempted to weld quick assembling supporting construction |
-
2016
- 2016-12-28 CN CN201611239341.XA patent/CN106593485B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202202874U (en) * | 2011-07-28 | 2012-04-25 | 中铁二十二局集团第六工程有限公司 | Gate-type arc-shaped steel frame for tunnel reinforcement |
| CN202991054U (en) * | 2012-12-25 | 2013-06-12 | 中鼎国际工程有限责任公司 | Novel mine tunnel supporting structure |
| CN205063959U (en) * | 2015-08-28 | 2016-03-02 | 大连海事大学 | Tunnel supporting construction suitable for last soft hard ground layer down |
| CN205445635U (en) * | 2016-03-29 | 2016-08-10 | 中国电建集团华东勘测设计研究院有限公司 | Shaped steel bow member supporting construction of tunnel excavation in -process |
| CN206513386U (en) * | 2016-12-28 | 2017-09-22 | 中铁第四勘察设计院集团有限公司 | A kind of profile steel frame for tunnel just branch construction is exempted to weld quick assembling supporting construction |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424987A (en) * | 2019-07-30 | 2019-11-08 | 周建辉 | It is a kind of to be convenient for the device fixed to steel arch-shelf for constructing tunnel |
| CN110566241A (en) * | 2019-09-16 | 2019-12-13 | 四川睿铁科技有限责任公司 | Quickly-assembled supporting shed frame |
| CN111441795A (en) * | 2020-05-19 | 2020-07-24 | 四川路航建设工程有限责任公司 | Fireless operation construction method for primary support of gas tunnel |
| CN111441795B (en) * | 2020-05-19 | 2022-03-01 | 四川路航建设工程有限责任公司 | Fireless operation construction method for primary support of gas tunnel |
| CN112814715A (en) * | 2021-01-07 | 2021-05-18 | 中铁十六局集团第三工程有限公司 | Novel locking anchor pipe construction fixing device and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106593485B (en) | 2019-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112196596B (en) | Grouting anchor rod cable combination beam for advanced support of deep broken surrounding rock and support method | |
| CN106703835B (en) | It is a kind of at the beginning of tunnel branch construct grid steel frame exempt from weld quick assembling supporting construction | |
| CN106761847B (en) | It is a kind of at the beginning of tunnel branch construct profile steel frame exempt from weld pin-connected panel supporting construction | |
| CN106593485A (en) | Sectional steel frame welding-free fast assembly support structure for tunnel primary support construction | |
| CN109026099B (en) | Soft rock roadway full-length anchoring supporting structure and construction method thereof | |
| CN106593484A (en) | Sectional steel frame welding-free support structure for tunnel primary support construction | |
| CN106677805B (en) | A kind of attachment device of tunnel steelframe and lock foot anchor tube | |
| CN106761846B (en) | It is a kind of at the beginning of tunnel branch construct grid steel frame exempt from weld pin-connected panel supporting construction | |
| CN206513386U (en) | A kind of profile steel frame for tunnel just branch construction is exempted to weld quick assembling supporting construction | |
| CN111828019B (en) | Construction method for large-section special deformation joint based on earthquake fracture zone | |
| CN206513383U (en) | A kind of attachment means of tunnel steelframe and lock pin anchor tube | |
| CN113137235B (en) | Construction method of high-ground-stress soft rock extrusion large-deformation tunnel | |
| CN102444270B (en) | Sleeve joint oblique key type support bracket | |
| CN206346755U (en) | A kind of grid steel frame for tunnel just branch construction exempts to weld quick assembling supporting construction | |
| CN206346761U (en) | A kind of profile steel frame for tunnel just branch construction is exempted to weld pin-connected panel supporting construction | |
| CN206346760U (en) | A kind of grid steel frame for tunnel just branch construction exempts to weld pin-connected panel supporting construction | |
| CN203347213U (en) | Structural steel tripod in overhanging type scaffold and scaffold system | |
| CN214660232U (en) | Corrugated plate connecting structure for tunnel toughness support | |
| CN106703839B (en) | It is a kind of at the beginning of tunnel branch construct grid steel frame exempt from weld supporting construction | |
| CN208456648U (en) | A kind of soft-rock tunnel full length fastening supporting construction | |
| CN206346763U (en) | A kind of profile steel frame for tunnel just branch construction is exempted to weld supporting construction | |
| CN102817617A (en) | Novel inhaul cable type shield originating backrest substrate system | |
| CN115059279A (en) | Steel beam outer scaffold device and mounting method thereof | |
| CN206346762U (en) | A kind of grid steel frame for tunnel just branch construction exempts to weld supporting construction | |
| CN107060093A (en) | The support system and assembling method of large-scale oblique braiding gusset plate latticed shell structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |