CN209083291U - A kind of suspension device for Used in Shallow Mining Tunnel with Large Span - Google Patents
A kind of suspension device for Used in Shallow Mining Tunnel with Large Span Download PDFInfo
- Publication number
- CN209083291U CN209083291U CN201821879859.4U CN201821879859U CN209083291U CN 209083291 U CN209083291 U CN 209083291U CN 201821879859 U CN201821879859 U CN 201821879859U CN 209083291 U CN209083291 U CN 209083291U
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- China
- Prior art keywords
- fagging
- curved roof
- bottom end
- keel
- suspension device
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Abstract
The utility model discloses a kind of suspension devices for Used in Shallow Mining Tunnel with Large Span, including curved roof, left fagging and right fagging, curved roof top surface is equipped with several rainwater guide channels, the left side bottom end and right side bottom end of curved roof are equipped with rectangular slot, left fagging and right fagging top are respectively connected with rectangular cam, rectangular cam is plugged in rectangular slot, the bottom surface of curved roof and left fagging side, it is connected by pushing up keel between right fagging side, it is connected between left fagging and right fagging bottom end by U-shaped bottom narrow boards, it is connected between adjacent panels by spine support, the support pressure of supporting is not only evenly spread into each plate and underground, and it ensure that the stability and connective stability of each support plate, supporting effect is good, it is safer, rainwater leakage prevention effect is good, it mounts and dismounts simple and fast, save supporting Cost and set-up time.
Description
Technical field
The utility model relates to tunnel support device field, specially a kind of supporting for Used in Shallow Mining Tunnel with Large Span
Device.
Background technique
Shallow burial hidden digging construction is to use sufficiently rigid compound pile up for base premised on reinforcing, handle soft stratum
A kind of excavating construction method for soft soil layer earth's surface tunnel of this supporting construction.
It after tunnel excavation, discharges and deforms in right amount for control surrouding rock stress, increase strcture safety and facilitate construction, tunnel
Apply that rigidity is smaller and structure sheaf as permanent bearing structure a part, referred to as suspension device after excavation immediately.
When carrying out steelframe support supporting, there is special messenger to observe the dynamic of excavation face, bracing members should be close to scar, and meet
The requirement of jetting cement thickness should formulate corresponding measure to insecurity factor by high-rise working requirement to installation bracing members.
When combined bolting and shotcrete, drainage sunk well should be carried out, when combined bolting and shotcrete installs steel mesh, mesh sheet should be mutually lapped and with scar
It is laid with, steel mesh and anchor pole are coupled securely, so as to fill when jetting cement closely knit, it is ensured that preliminary bracing quality.
But existing tunnel support device has the following deficiencies:
In base pit engineering, when size-constrained for foundation pit, add anchor pole frequently with campshed, campshed at present or pass through cast-in-place steel
The support pattern of reinforced concrete supporting construction carries out supporting to foundation pit, not only long construction period, and this considerably increases reinforcing bars
It with the dosage of concrete, and can not recycle, result in waste of resources at the end of engineering.And always had the gap between supporting, under
It is easy leakage rainwater when rainy day gas, between the gap of supporting, to make humidity in tunnel, construction can be interfered, to drag slow
Constructing tunnel efficiency.
Summary of the invention
In order to overcome the shortcomings of prior art, the utility model provides a kind of for Used in Shallow Mining Tunnel with Large Span
Suspension device, supporting area is wide, is connected between adjacent panels by spine support, not only evenly spreads to the support pressure of supporting
Each plate and underground, and ensure that the stability and connective stability of each support plate, supporting effect is good, safer, rain-proof
Water leakage effect is good, and installation and removal are simple and fast, saves support cost and set-up time, can effectively solve background technique
The problem of proposition.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of suspension device for Used in Shallow Mining Tunnel with Large Span, including curved roof, left fagging and right fagging, it is described
Left fagging and right fagging are respectively provided at the left side bottom end and right side bottom end of curved roof, left fagging, right fagging top end face respectively with
Left side bottom face, the right side bottom face of curved roof are in contact, and the curved roof top surface is equipped with several rainwater guide channels, institute
The left side bottom end and right side bottom end for stating curved roof are equipped with rectangular slot, and the left fagging and right fagging top are respectively connected with square
Shape convex block, the rectangular cam are plugged in rectangular slot；
It is connected by pushing up keel between the bottom surface of the curved roof and left fagging side, right fagging side, left support
It is connected between plate and right fagging bottom end by several U-shaped bottom narrow boards.
Further, the front end of the curved roof is equipped with arc groove, and the rear end of curved roof is equipped with arc inserted block,
The arc inserted block is inserted into the arc groove of its rear adjacent arcs shape top plate.
Further, the quantity of the top keel is 4-8 root, props up bar by level between two neighboring top keel and is connected
It connects.
Further, the left fagging and right fagging bottom end are equipped with vertical groove, the left side top of the U-shaped bottom narrow boards
End, right side top are plugged in respectively in the vertical groove of left fagging, right fagging, and the bottom side of left fagging and right fagging passes through
Auxiliary load keel are connected with U-shaped bottom narrow boards.
Compared with prior art, the utility model has the beneficial effects that
(1) curved roof of the utility model suspension device, left fagging, right fagging, U-shaped bottom narrow boards support tunnel respectively
Top wall surface, left side wall surface, right side wall surface and bottom surface, supporting area is wide, and tunnel sandy and stony soil is not easy to fall, and between adjacent panels
It is connected by spine support, the support pressure of supporting is not only evenly spread into each plate and underground, but also ensure that each
The stability and connective stability of fagging, supporting effect is good, safer；
(2) the rainwater guide channel of the curved roof setting of the utility model can be well by the rainwater for the treatment of technology for tunnel seepage from support
The lateral surface of plate guides away rainwater, and is linked together by way of joggle between each adjacent shore plates, makes to prop up
The rainproof effect of shield more preferably, to ensure that the construction environment of tunnel drying, and suspension device installation and removal are simple and fast, saves
Support cost and set-up time are saved.
Detailed description of the invention
Fig. 1 is the suspension device normal cross-section structural schematic diagram of the utility model；
Fig. 2 is the curved roof schematic top plan view of the utility model.
Figure label:
1- curved roof；The left fagging of 2-；The right fagging of 3-；4-U type bottom narrow boards；5- pushes up keel；6- level props up bar；7- load
Keel；
11- rainwater guide channel；12- rectangular slot；13- arc groove；14- arc inserted block；
21- rectangular cam；22- vertical groove.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As depicted in figs. 1 and 2, the utility model provides a kind of suspension device for Used in Shallow Mining Tunnel with Large Span,
Including curved roof 1, left fagging 2 and right fagging 3, because the top in tunnel is typically all arch, end face is arc, therefore
Curved roof 1 can more be bonded the top wall surface in tunnel.And curved roof 1 props up the top wall surface in tunnel, U-shaped bottom narrow boards 4 is then
It is embedded on tunnel bottom surface, left fagging 2 and right fagging 3 are both supported upon on tunnel ground.
Left fagging 2 and right fagging 3 are respectively provided at the left side bottom end and right side bottom end of curved roof 1, left fagging 2, right fagging 3
Top end face is in contact with the left side bottom face of curved roof 1, right side bottom face respectively, and 1 top surface of curved roof is equipped with several rain
The both ends water outlet of water guide channel 11, rainwater guide channel 11 is located at the left and right side bottom end of curved roof, i.e. water outlet
It is located at the left side of left fagging 2, the right side of right fagging 3, thus leak into rainwater will not in the tunnel between three plates, it is real
The function of rainwater leakage prevention is showed.
The left side bottom end and right side bottom end of curved roof 1 are equipped with rectangular slot 12, and left fagging 2 and 3 top of right fagging are equal
It is connected with rectangular cam 21, rectangular cam 21 is plugged in rectangular slot 12.By the rectangular cam 21 of left fagging 2 and right fagging 3
Respectively with 12 Dock With Precision Position of rectangular slot on respective top, curved roof 1 can be made fast and accurately to be installed, improved
Supporting installation effectiveness.And rainwater will not generally leak into rectangular slot, therefore be also functioned to using the connection type of inserted block slot
The effect of certain rain-proof water-impervious.
It is connected by pushing up keel 5 between the bottom surface of curved roof 1 and left 2 side of fagging, 3 side of right fagging, left support
Plate 2 and right fagging are connected between 3 bottom end by several U-shaped bottom narrow boards 4, the quantity at least two of U-shaped bottom narrow boards 4, U-shaped bottom
The normal cross-section of narrow boards 4 is " U "-shaped, and the longitudinal width of U-shaped bottom narrow boards 4 is 10-30cm, so that it be made to occupy tunnel bottom surface face
Product is less, is easier to for U-shaped bottom narrow boards 4 being buried in the earth, bottom supporting is avoided to cause walking disorder to construction personnel.If but tunnel
Bottom end is also required to supporting or underground water leakage, the longitudinal width one of the longitudinal width of settable U-shaped bottom narrow boards 4 and right fagging 2
It causes, bigger support action can be played the role of in this way, can also play anti-underground water.
The front end of curved roof 1 is equipped with arc groove 13, and the rear end of curved roof 1 is equipped with arc inserted block 14, and arc is inserted
Block 14 is inserted into the arc groove 13 of its rear adjacent arcs shape top plate 1.It is docked in such a way that inserted block is inserted into groove, previous
After the installation is completed, next curved roof 1 can play certain antiseepage with previous 1 Dock With Precision Position of curved roof to curved roof 1
Water effect.It can also be accurate in such a way that inserted block is inserted into groove between two neighboring left fagging 2 or between two neighboring right fagging
It is docking together.For guarantee two curved roofs 1 between connective stability, the part that two curved roofs 1 contact with each other also
Equipped with screw hole, it is inserted with screw in screw hole, each supporting module links together in this way, increases suspension device monolithic stability
Property.
The quantity for pushing up keel 5 is 4-8 root, props up bar 6 by level between two neighboring top keel 5 and is connected.Push up keel 5
Both ends are connected by welding or removable connector with top plate, fagging, thus keep the disassembly for pushing up keel 5 more easily quick,
Reuse suspension device.Adjacent level is propped up and also is provided with horizontal brace rod between bar 6, thus by each top keel 5
It links together, is allowed to that stress is more balanced, make keel by the gravity uniform transmission of curved roof 1 to left fagging 2 or right fagging 3
On.And top keel 5 and U-shaped bottom narrow boards 4 play the role of propping up left fagging 2 and right fagging 3, to make left fagging 2 and right support
Plate 3 props up the tunnel wall surface at left and right sides of tunnel respectively.
Left fagging 2 and 3 bottom end of right fagging are equipped with vertical groove 22, left side top, the right side top point of U-shaped bottom narrow boards 4
It is not plugged in the vertical groove 22 of left fagging 2, right fagging 3, and the bottom side of left fagging 2 and right fagging 3 passes through auxiliary and holds
Power keel 7 are connected with U-shaped bottom narrow boards 4, keep the connection between fagging and bottom narrow boards more firm.Realize U-shaped bottom narrow boards 4 with
The Dock With Precision Position of two faggings has not only acted as the effect for propping up two faggings, shrink two faggings will not inwardly, thus
Supporting stability is increased, and U-shaped bottom narrow boards 4 also functions to certain positioning action, two faggings is made to be not easy to be displaced.U-shaped bottom
Narrow boards 4 also act as it is certain take supporting weight and by the effect of supporting weight uniform transmission to tunnel bottom, reduce two
The pressure of fagging.
The step of installing suspension device are as follows:
Present tunnel bottom end is embedded to fit several U-shaped bottoms narrow boards 4, stretches out the top of bottom narrow boards outside bottom surface, then by left support
Plate 2 and right fagging 3 are installed to suitable position on narrow boards, make U-shaped bottom narrow boards 4 and 22 Dock With Precision Position of vertical groove, install auxiliary
Load keel 7 are fixed on fagging on the narrow boards of bottom.Then curved roof 1 is put into above two faggings again, inserts convex block alignment
Then slot installs top keel 5, level again and props up bar 6, completes the installation of entire suspension device.If subsequent continue to dig deep tunnel,
It can continue to build supporting module interconnected on the basis of previous suspension device.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (4)
1. a kind of suspension device for Used in Shallow Mining Tunnel with Large Span, including curved roof (1), left fagging (2) and right fagging
(3), the left fagging (2) and right fagging (3) are respectively provided at the left side bottom end and right side bottom end of curved roof (1), left fagging
(2), right fagging (3) top end face is in contact with the left side bottom face of curved roof (1), right side bottom face respectively, it is characterised in that:
Curved roof (1) top surface is equipped with several rainwater guide channels (11), the left side bottom end and right side bottom of the curved roof (1)
End is equipped with rectangular slot (12), and the left fagging (2) and right fagging (3) top are respectively connected with rectangular cam (21), the square
Shape convex block (21) is plugged in rectangular slot (12)；
It is connected by pushing up keel (5) between the bottom surface of the curved roof (1) and left fagging (2) side, right fagging (3) side
It connects, is connected between left fagging (2) and right fagging (3) bottom end by several U-shaped bottom narrow boards (4).
2. a kind of suspension device for Used in Shallow Mining Tunnel with Large Span according to claim 1, it is characterised in that: described
The front end of curved roof (1) is equipped with arc groove (13), and the rear end of curved roof (1) is equipped with arc inserted block (14), the arc
Shape inserted block (14) is inserted into the arc groove (13) of its rear adjacent arcs shape top plate (1).
3. a kind of suspension device for Used in Shallow Mining Tunnel with Large Span according to claim 1, it is characterised in that: described
The quantity for pushing up keel (5) is 4-8 root, props up bar (6) by level between two neighboring top keel (5) and is connected.
4. a kind of suspension device for Used in Shallow Mining Tunnel with Large Span according to claim 1, it is characterised in that: described
Left fagging (2) and right fagging (3) bottom end are equipped with vertical groove (22), left side top, the right side top of the U-shaped bottom narrow boards (4)
End is plugged in respectively in the vertical groove (22) of left fagging (2), right fagging (3), and the bottom side of left fagging (2) and right fagging (3)
Face passes through auxiliary load keel (7) and is connected with U-shaped bottom narrow boards (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821879859.4U CN209083291U (en) | 2018-11-15 | 2018-11-15 | A kind of suspension device for Used in Shallow Mining Tunnel with Large Span |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821879859.4U CN209083291U (en) | 2018-11-15 | 2018-11-15 | A kind of suspension device for Used in Shallow Mining Tunnel with Large Span |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209083291U true CN209083291U (en) | 2019-07-09 |
Family
ID=67124148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821879859.4U Expired - Fee Related CN209083291U (en) | 2018-11-15 | 2018-11-15 | A kind of suspension device for Used in Shallow Mining Tunnel with Large Span |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209083291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021179520A1 (en) * | 2020-03-12 | 2021-09-16 | 中铁十九局集团广州工程有限公司 | Tunnel for ultra-shallow overburden layer |
-
2018
- 2018-11-15 CN CN201821879859.4U patent/CN209083291U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021179520A1 (en) * | 2020-03-12 | 2021-09-16 | 中铁十九局集团广州工程有限公司 | Tunnel for ultra-shallow overburden layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 Termination date: 20191115 |