CN106593484A - Sectional steel frame welding-free support structure for tunnel primary support construction - Google Patents
Sectional steel frame welding-free support structure for tunnel primary support construction Download PDFInfo
- Publication number
- CN106593484A CN106593484A CN201611238190.6A CN201611238190A CN106593484A CN 106593484 A CN106593484 A CN 106593484A CN 201611238190 A CN201611238190 A CN 201611238190A CN 106593484 A CN106593484 A CN 106593484A
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- steel
- tunnel
- plate
- special bolt
- anchor head
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 184
- 239000010959 steel Substances 0.000 title claims abstract description 184
- 238000010276 construction Methods 0.000 title claims abstract description 60
- 238000003466 welding Methods 0.000 claims abstract description 13
- 238000004873 anchoring Methods 0.000 claims description 12
- 210000003205 muscle Anatomy 0.000 claims description 10
- 238000010030 laminating Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 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
- 239000000203 mixture 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
- 230000003014 reinforcing effect Effects 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
- 239000004744 fabric Substances 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
- 239000011378 shotcrete Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid 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 sectional steel frame welding-free support structure for tunnel primary support construction. The sectional steel frame welding-free support structure comprises a plurality of trusses of sectional steel arch frames arranged in the longitudinal direction of a tunnel at intervals; each truss of sectional steel arch frame is anchored on the tunnel wall through a lock pin anchor pipe connecting device; and the adjacent sectional steel arch frames are mutually connected through a telescopic longitudinal connection device. The sectional steel frame welding-free support structure has the advantages that the structure is simple; the installation and the use are convenient; through the splicing connection among the sectional 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 sectional 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 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 foot anchor tube.Traditional longitudinally connected reinforcing bar and lock foot 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 gas, 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 CN205477642U 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 foot 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 contour 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 foot 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 supporting construction, it is not only simple in structure, easy to assembly, Er Qieneng
Enough efficiently avoid the slow speed of application that tunnel welding procedure causes, pollution, quality and be difficult to ensure the relevant issues such as card.
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
Supporting construction, it includes many Pin shaped steel steel arch-shelfs along the longitudinally spaced arrangement in tunnel；Shaped steel steel arch-shelf is by lock described in per Pin
Foot anchor tube attachment means are anchored in tunnel wall；By telescopic one-above-the-other layout phase between the adjacent shaped steel steel arch-shelf
Connect；The lock foot 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 foot 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 foot anchor tube；The lock foot anchor tube is installed in tunnel wall；The telescopic longitudinal direction
Attachment means include two telescopic connection units being arranged in parallel；Each described telescopic connection unit is by a double end
Screw shell, two longitudinally connected muscle and two limiting plate compositions；One end of each longitudinally connected muscle is provided with can be with institute
The external screw thread that double thread bush whorl is connected is stated, the end of the other end is connected with vertical with an its center axis institute
State limiting plate；It is connected with each other by adapter between two telescopic connection units；The two ends of the adapter 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 shaped steel steel arch-shelf and longitudinally push up along tunnel with two steel webs
Connect, another telescopic connection unit of the telescopic one-above-the-other layout is installed on the adjacent shaped steel steel arch-shelf
The outside of flange plate and longitudinally crimp along tunnel with two flange plates.
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.
In a kind of preferred embodiment of the present invention, the guiding steel plate is welded in advance on the flange plate and and tunnel wall
Face is arranged in parallel；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 foot anchor tube of the anchor head special bolt
The female thread of outer end is engaged.
In a kind of preferred embodiment of the present invention, the limiting plate is L-shaped angle steel limiting plate；The L-shaped angle steel limit
Position plate includes orthogonal connecting portion and limiting section；Axis direction of the connecting portion along the telescopic connection unit
Weld with the telescopic connection unit；The limiting section is mutually perpendicular to the axis of the telescopic connection unit.
The present invention a kind of preferred embodiment in, a telescopic connection unit of the one-above-the-other layout with
The Figure of eight of the adjacent shaped steel 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 shaped steel steel arch-shelf along tunnel, i.e., two telescopic connection units one are to type
Steel steel arch-shelf applies jacking force, the pressure pulling force applied to shaped steel steel arch-shelf along tunnel longitudinal direction along tunnel longitudinal direction, so as to reality
Existing shaped steel steel arch-shelf is longitudinal to be stably connected with.
In a kind of preferred embodiment of the present invention, the telescopic one-above-the-other layout is along the shaped steel steel arch
The ring of frame is equally spaced；It is connected to two groups of one-above-the-other layout interlaced arrangements at same shaped steel steel arch-shelf two ends.
The invention has the beneficial effects as follows：Present configuration is simple, easy to install, by shaped steel steel arch-shelf and lock foot 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 foot 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 telescopic one-above-the-other layout, improve
Installation rate, 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 the structural representation of supporting construction
Figure；
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 the vertical along tunnel of supporting construction
To front view；
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 the vertical along tunnel of supporting construction
To top view；
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 the lock foot anchor tube of supporting construction
The guiding steel plate structure schematic diagram of 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 the lock foot anchor tube of supporting construction
The structural representation of 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 the lock foot anchor tube of supporting construction
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 the lock foot anchor tube of supporting construction
The anchoring joint design schematic diagram of 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 the lock foot anchor tube of supporting construction
The structural representation of the anchor head special bolt of 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 the telescopic of 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 the scalable of supporting construction
One-above-the-other layout structural representation；
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 the shaped steel steel of supporting construction
The structural representation of the telescopic connection unit of bow member；
Figure 12 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 the scalable of supporting construction
Connection unit connector construction schematic diagram；
In figure：A- shaped steel steel arch-shelfs, B- lock foot anchor tube attachment means, the telescopic one-above-the-other layouts of C-, the A-1- edges of a wing
Plate, A-2- steel webs, 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-shaped rubber backing plates；The flat billets of B-3-3-；B-3-4- nuts；B-3-1-1- filling adaptors；B-3-1-2- special bolts
Head；B-3-1-3- reserves hollow grouting pipe；B-3-1-4- special bolt screw threads；B-4- locks foot anchor tube；B-4-1- locks foot anchor
Pipe end arranges female thread, and the telescopic connection units of C-3-, C-4- adapters, C-5- double thread sleeves, C-6- longitudinally connects
Connect muscle, C-7- external screw threads, C-8- limiting plates, C-4a- adapter sleeves, C-4b- connecting rods, C-4a-1- connecting holes, C-8a- connecting portions,
C-8b- limiting sections.
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.
The profile steel frame of a construction by the beginning of a kind of shown in Fig. 1 to Fig. 2 is for tunnel exempts from the structural representation for welding supporting construction
Figure understands that, present invention is mainly used for carrying when tunnel initial-stage is constructed, it includes many Pin types along the longitudinally spaced arrangement in tunnel
Steel steel arch-shelf A, is anchored in tunnel wall per Pin shaped steel steel arch-shelf A by locking foot anchor tube attachment means B；Adjacent shaped steel steel arch-shelf A
Between be connected with each other by telescopic one-above-the-other layout C；It is quick solid per Pin shaped steel steel arch-shelf A for the ease of the present invention
Fixed, lock foot 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,
It is oriented to steel plate B-2 and is provided 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 joint B-3 is installed；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 difference position
In the inside and outside two sides for being oriented to 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 brought into close contact 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 for being oriented to steel plate B-2；
The axis direction of anchor 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
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 packages are in anchor head special bolt B-3-1
On；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, and flat billet B-3-3's is another
End face is fitted with the pilot hole B-2-1 end faces for being oriented to steel plate B-2；The planar end surface of wedge-shaped rubber backing plate B-3-2 is by being connected to anchor
The spacing fixations of nut B-3-4 on head special bolt B-3-1；Wedge-shaped rubber backing plate B-3-2 inner faces are inclined with backing plate axis, outward
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 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 connected with grouting pipe B-3-1-3；Shaped steel steel arch-shelf A is by two pieces of parallel cloth
The flange plate A-1 for putting and the steel web A-2 compositions between two pieces of flange plate A-1；It is oriented to steel plate B-2 to be welded in advance along tunnel footpath
It is arranged in parallel on flange plate A-1 laterally and with tunnel wall；Pilot hole B-2-1 is symmetricly set in tunnel steelframe B-1 both sides
Guiding steel plate B-2 on；The inner external screw thread of anchor head special bolt B-3-1 matches with the female thread of lock foot anchor tube B-4 outer ends
Close.Its installation step is as follows：
Step one：The course of processing：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 foot anchor tube B-4 arranges female thread B-4-1 by steelframe side head, is required according to construction and shoulder height, in shaped steel steel
Bow member A preweldings are oriented to steel plate B-2.
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 foot 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 foot 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 foot anchor tube by design position
Put and angle positioning can guarantee that lock foot 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.
In step 2, the telescopic one-above-the-other layout C that connects through between shaped steel steel arch-shelf A is realized, scalable
One-above-the-other layout C include two telescopic connection unit C-3 being arranged in parallel；Each telescopic connection unit C-3
It is made up of double thread sleeve C -5, two longitudinally connected muscle C-6 and two limiting plate C-8；Dowel C-6 longitudinally in each
One end be provided with the external screw thread C-7 that can be connected with the screw thread of double thread sleeve C -5, the end of the other end is connected with and it
One limiting plate C-8 of central axis upright；It is connected with each other by adapter C-4 between two telescopic connection unit C-3,
Adapter C-4 can be moved freely along the axis direction of connection unit C-3；Adapter C-4 is by two connections being arranged parallel to
C-4a and connecting rod C-4b composition of set；The two ends of connecting rod C-4b have been respectively and fixedly connected with adapter sleeve C-4a, connecting rod C-4b
Central axis is mutually perpendicular to the central axis of connecting hole C-4a-1；Be provided with adapter sleeve C-4a for longitudinally connected muscle C-
The connecting hole C-4a-1 of 6 sliding connections, limiting plate C-8 are L-shaped angle steel limiting plate；L-shaped angle steel limiting plate includes mutually hanging down
Straight connecting portion C-8a and limiting section C-8b；Connecting portion C-8a along telescopic connection unit C-3 axis direction with can stretch
The connection unit C-3 welding of contracting；Limiting section C-8b is mutually perpendicular to the axis of telescopic connection unit C-3, telescopic vertical
Be installed between the steel web A-2 of adjacent shaped steel steel arch-shelf A to a telescopic connection unit C-3 of attachment means 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 shaped steel steel arch-shelf A and longitudinally crimps along tunnel with two flange plate A-1；It is connected to
Two groups of one-above-the-other layout C interlaced arrangements at same shaped steel steel arch-shelf A two ends.
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 (10)
1. a kind of profile steel frame at the beginning of tunnel construction is exempted to weld supporting construction, including along many of the longitudinally spaced arrangement in tunnel
Pin shaped steel steel arch-shelfs (A)；Shaped steel steel arch-shelf (A) is anchored in tunnel wall by lock foot anchor tube attachment means (B) described in per Pin；Phase
It is connected with each other by telescopic one-above-the-other layout (C) between the adjacent shaped steel steel arch-shelf (A)；It is characterized in that：
Lock foot 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 foot 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 foot anchor tube (B-4) be connected；Lock foot anchor tube (B-4) is installed in tunnel wall；
The telescopic one-above-the-other layout (C) includes two telescopic connection units (C-3) being arranged in parallel；Each institute
State telescopic connection unit (C-3) spacing by a double thread sleeve (C-5), two longitudinally connected muscle (C-6) and two
Plate (C-8) is constituted；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) being connected, the end of the other end is connected with vertical with an its center axis limiting plate (C-
8)；It is connected with each other by adapter (C-4) between two telescopic connection units (C-3)；The adapter (C-4)
Two ends are provided with can be with the connecting hole (C-4a-1) of the longitudinally connected muscle (C-6) sliding connection；It is described telescopic vertical
The steel web of the adjacent shaped steel steel arch-shelf (A) is installed on to a telescopic connection unit (C-3) of attachment means (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 shaped steel steel arch-shelf (A) and with
Two flange plates (A-1) longitudinally crimp along tunnel.
2. a kind of profile steel frame at the beginning of tunnel construction according to claim 1 is exempted to weld supporting construction, and its feature exists
In：Every group of taperliner includes wedge-shaped rubber backing plate (B-3-2) peace billet (B-3-3)；The wedge-shaped rubber backing plate
And flat billet (B-3-3) coaxial package is on the anchor head special bolt (B-3-1) (B-3-2)；The flat billet
(B-3-3) end face 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 supporting construction, and its feature exists
In：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 supporting construction, and its 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) the inner external screw thread coordinates, two groups of taperliners and
Be oriented to steel plate (2) pilot hole (B-2-1) 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 at the beginning of tunnel construction according to claim 1 is exempted to weld supporting construction, and its feature exists
In：The outer end of the anchor head special bolt (B-3-1) is disposed with the filling adaptor connected with the grouting pipe (B-3-1-3)
(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 supporting construction, and its feature exists
In：Guiding steel plate (B-2) is welded in advance on the flange plate (A-1) and is arranged in parallel with tunnel wall；Pilot hole (the B-
2-1) it 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 is exempted to weld supporting
Structure, it is characterised in that：The inner external screw thread of the anchor head special bolt (B-3-1) is interior with lock foot anchor tube (B-4) outer end
Screw thread is engaged.
8. a kind of profile steel frame at the beginning of tunnel construction according to claim 1 is exempted to weld supporting construction, and its feature exists
In：The limiting plate (C-8) is L-shaped angle steel limiting plate；The L-shaped angle steel limiting plate includes orthogonal connecting portion (C-8a)
With limiting section (C-8b)；The connecting portion (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 at the beginning of tunnel construction according to claim 1 is exempted to weld supporting construction, and its feature exists
In：The adapter (C-4) is made up of two adapter sleeves being arranged parallel to (C-4a) and a connecting rod (C-4b)；It is described
The two ends of connecting rod (C-4b) have been respectively and fixedly connected with the adapter 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 with the adapter sleeve (C-4a) for the longitudinally connected muscle
(C-6) connecting hole (C-4a-1) of sliding connection.
10. a kind of profile steel frame at the beginning of tunnel construction according to claim 1 is exempted to weld supporting construction, and its feature exists
In：The telescopic one-above-the-other layout (C) is equally spaced along the ring of the shaped steel steel arch-shelf (A)；It is connected to same
Two groups of one-above-the-other layout (C) interlaced arrangements at one shaped steel steel arch-shelf (A) two ends.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593484A true CN106593484A (en) | 2017-04-26 |
| CN106593484B CN106593484B (en) | 2019-02-05 |
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ID=58604704
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|---|---|---|---|
| CN201611238190.6A Active 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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| CN (1) | CN106593484B (en) |
Cited By (5)
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| CN107676113A (en) * | 2017-11-14 | 2018-02-09 | 云南省建筑科学研究院 | A kind of telescopic tunnel support Mobile workbench |
| CN109252876A (en) * | 2018-06-26 | 2019-01-22 | 中铁五局集团贵州工程有限公司 | A kind of advanced tubule angle positioning device |
| 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 |
| CN111764941A (en) * | 2020-03-27 | 2020-10-13 | 同济大学 | Tunnel prefabricated steel arch frame reinforcing method |
| CN114482607A (en) * | 2022-02-17 | 2022-05-13 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107676113A (en) * | 2017-11-14 | 2018-02-09 | 云南省建筑科学研究院 | A kind of telescopic tunnel support Mobile workbench |
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| CN111764941A (en) * | 2020-03-27 | 2020-10-13 | 同济大学 | Tunnel prefabricated steel arch frame reinforcing method |
| 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 |
| CN114482607A (en) * | 2022-02-17 | 2022-05-13 | 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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|---|---|
| CN106593484B (en) | 2019-02-05 |
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