CN214997742U - Tunnel excavation rack suitable for continuously variable span - Google Patents
Tunnel excavation rack suitable for continuously variable span Download PDFInfo
- Publication number
- CN214997742U CN214997742U CN202121101669.1U CN202121101669U CN214997742U CN 214997742 U CN214997742 U CN 214997742U CN 202121101669 U CN202121101669 U CN 202121101669U CN 214997742 U CN214997742 U CN 214997742U
- Authority
- CN
- China
- Prior art keywords
- tunnel
- support
- span
- continuous variable
- anchor rod
- 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.)
- Active
Links
- 238000009412 basement excavation Methods 0.000 title claims abstract description 31
- 238000009434 installation Methods 0.000 claims description 7
- 230000005641 tunneling Effects 0.000 claims 5
- 238000010276 construction Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides a tunnel excavation rack suitable for continuous variable span, include: a frame body: the span of the frame body is equal to the minimum section size of the tunnel; anchor rod: one end of the support is inserted into the primary support, and the other end of the support is exposed out of the primary support; lengthening the assembly: one end of the anchor rod is fixed on the frame body, and the other end of the anchor rod can extend and is inserted into the exposed end of the anchor rod. The utility model provides a tunnel excavation rack suitable for become span in succession has the stock through inserting on the preliminary bracing in tunnel, installs on the support body through extension subassembly one end, and the one end is pegged graft and is realized the tunnel excavation of different section sizes on the stock, simultaneously through the extensible characteristic of extension subassembly, adapts to the tunnel construction of becoming the span in succession, realizes that the construction is convenient, the support body is stable, the efficiency of construction is high, the strong effect of operatable.
Description
Technical Field
The utility model relates to a tunnel construction technical field especially relates to a tunnel excavation rack suitable for continuous variable span.
Background
The manual hand-held rock drill is mostly used for tunnel excavation in domestic tunnel construction, and the support is mostly manual support, so when tunnel construction, the excavation rack is indispensable. Traditional excavation rack is mostly steel processing such as I-steel and forms, even both sides increase springboard, its application scope also only than 1 ~ 3m big than the rack span, when meetting the tunnel construction of continuous variable span, especially span change is great, like during 6m span tunnel gradual change construction to 15m span tunnel, traditional excavation rack can't satisfy the tunnel construction demand.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tunnel excavation rack suitable for become span in succession for solve among the prior art in the tunnel construction of becoming the span in succession, and the span change defect that current excavation rack can't satisfy the construction demand under the great condition, adopt can add the extension subassembly and build between support body and stock, the tunnel section size of satisfying the continuous change when realizing becoming the span in succession, and still satisfy the construction requirement when the span change is great.
The utility model provides a tunnel excavation rack suitable for continuous variable span, include:
a frame body: the span of the frame body is equal to the minimum section size of the tunnel;
anchor rod: one end of the support is inserted into the primary support, and the other end of the support is exposed out of the primary support;
lengthening the assembly: one end of the anchor rod is fixed on the frame body, and the other end of the anchor rod can extend and is inserted into the exposed end of the anchor rod.
According to the tunnel excavation rack suitable for continuous variable span provided by the utility model, the lengthening component comprises a first mounting sleeve and a second extending piece,
the first installation sleeve is installed on the frame body, and the second extension piece penetrates through the first installation sleeve, extends to the anchor rod, and is plugged at the exposed end of the anchor rod.
According to the utility model provides a tunnel excavation rack suitable for continuous variable span, the second extend with overlap joint springboard on the stock.
According to the utility model provides a tunnel excavation rack suitable for continuous variable span, first installation cover is the cylinder sleeve, the second extension is the pipe.
According to the utility model provides a tunnel excavation rack suitable for continuous variable span, first installation cover is the cuboid cover, the second extension is square pipe.
According to the tunnel excavation rack suitable for continuous variable span provided by the utility model, the rack body comprises supporting legs and supporting surfaces, the supporting surfaces are installed in layers along the length direction of the supporting legs,
the branch surfaces of each layer are parallel, and the length of each layer is equal to the minimum section size of the tunnel.
According to the utility model provides a tunnel excavation rack suitable for continuous variable span, the central line of a face with the central line coincidence in tunnel.
According to the utility model provides a tunnel excavation rack suitable for continuous variable span, extension unit mount is on the landing leg, and arranges a face below in.
According to the utility model provides a tunnel excavation rack suitable for continuous variable span, the mid-mounting of second extension piece has the bowl to detain scaffold frame pole setting.
According to the utility model provides a tunnel excavation rack suitable for continuous variable span, the second extend the central line with the stock is parallel.
The utility model provides a tunnel excavation rack suitable for become span in succession has the stock through inserting on the preliminary bracing in tunnel, installs on the support body through extension subassembly one end, and the one end is pegged graft and is realized the tunnel excavation of different section sizes on the stock, simultaneously through the extensible characteristic of extension subassembly, adapts to the tunnel construction of becoming the span in succession, realizes that the construction is convenient, the support body is stable, the efficiency of construction is high, the strong effect of operatable.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a tunnel excavation rack suitable for continuous variable span provided by the utility model;
fig. 2 is a schematic view of a continuous variable span tunnel provided by the present invention;
reference numerals:
100: a frame body; 101: supporting the noodles; 102: a support leg;
103: an anchor rod; 104: a gangboard; 110: a first mounting sleeve;
120: a second extension member; 130: lengthening the assembly; 200: a tunnel;
131: the bowl is detained scaffold frame pole setting.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Embodiments of the present invention will be described below with reference to fig. 1 to 2. It is to be understood that the following description is only exemplary of the present invention and is not intended to limit the present invention.
As shown in fig. 1, the utility model provides a tunnel excavation rack suitable for continuous variable span, include:
a rack body 100: the span of the frame body 100 is equal to the minimum section size of the tunnel 200;
anchor rod 103: one end of the support is inserted into the primary support, and the other end of the support is exposed out of the primary support;
extension assembly 130: one end of the rod is fixed on the frame body 100, and the other end of the rod is extendable and inserted into the exposed end of the anchor rod 103.
With continued reference to fig. 1, in one embodiment of the present invention, extension assembly 130 includes a first mounting sleeve 110 and a second extension member 120.
The first mounting sleeve 110 is mounted on the frame body 100, and the second extending member 120 passes through the first mounting sleeve 110, extends to the anchor rod 103, and is inserted into an exposed end of the anchor rod 103.
Further, in one embodiment of the present invention, the second extension 120 and the anchor bar 103 overlap the ramp 104.
Specifically, in an optional embodiment of the present invention, the frame body 100 comprises a leg 102 and a support surface 101, wherein the support surface 101 is installed in layers along the length direction of the leg 102.
In other words, depending on the height of the tunnel 200, the legs 102 may be installed on 1 to N levels of the counter surfaces 101,
in addition, the branch surfaces 101 of each layer are parallel to each other and have the same length, which is equal to the minimum cross-sectional dimension of the tunnel 200.
As shown in fig. 1, the shelf 100 includes two levels of support surfaces 101, the first level of support surface being disposed at the top of the legs 102 and being a single panel. The second layer of support surface is divided into two parts, a left support leg part and a right support leg part. But overall, the distance from the left end to the right end of the second layer of branch surfaces is equal to the length of the first layer of branch surfaces.
As shown in fig. 2, the centerline of the branch 101 coincides with the centerline of the tunnel 200. That is, the distance between the branch surface 101 and the tunnel 200 is equal in the right and left directions, and the length of the second extension 120 is also equal.
Additionally, in an alternative embodiment of the present invention, the extension assembly 130 is mounted to the leg 102 and positioned below the fulcrum 101.
Specifically, the extension assemblies 130 may be disposed on both sides of the supporting surface 101, and depending on the number of layers of the supporting surface 101 and the number of the legs 102, the number of the extension assemblies 130 may be mounted at the number of intersections between the supporting surface 101 and the legs 102.
Further, the first mounting sleeve 110 of the extension assembly 130 is welded to the leg 102.
In the actual installation process, the first installation sleeve 110 is tightly attached to the lower part of the supporting surface 101, so that the lapped springboard 104 and the supporting surface 101 can be in the same horizontal plane, and the operation of a constructor is facilitated.
In one embodiment of the present invention, the first mounting sleeve 110 is a cylindrical sleeve and the second extension 120 is a circular tube.
In another embodiment of the present invention, the first mounting sleeve 110 is a rectangular parallelepiped sleeve, and the second extending member 120 is a square tube.
Of course, the present invention is not limited to the above two structures of the first mounting sleeve 110 and the second extending member 120. The first mounting sleeve 110 and the second extension member 120 may take shapes as long as the fitting relationship is satisfied, and are not limited to the shapes listed in the embodiments of the present application.
In an optional embodiment of the present invention, when the distance between the frame body 100 and the preliminary support of the tunnel is greater than or equal to 6m, the middle portion of the second extending member 120 is provided with the fastener scaffold upright rod 131, so as to increase the overall strength of the frame body.
Further, in an embodiment of the present invention, the centerline of the second extension 120 is parallel to the anchor bar 103.
In other words, in order to achieve that the installed second extension piece 120 is parallel to the branch surface 101, the center line of the installed second extension piece 120 should be parallel to the anchor bar 103.
As shown in FIG. 2, in the continuous variable-span tunnel, the second extending member 120 having that length can be applied to the tunnel having the span difference in the range of 0 to 20 m.
Further, in the concrete construction, the circular tube is made of seamless steel tubes, welded tubes or frame tubes, the inner diameter of the circular tube is not smaller than the diameter (22-28 mm) of the anchor rod of the system, the outer diameter of the circular tube is 40-55 mm, the wall thickness of the circular tube is 2.0-3.5 mm, and the length of the circular tube is 20-30 cm larger than the distance between the frame and the primary support.
The steel pipe is selected as the cylindrical sleeve, the inner diameter of the cylindrical sleeve is slightly larger than the outer diameter of the circular pipe by 0-2.0 mm, and the distance between the cylindrical sleeves is 0.5-2.0 m and is matched with the distance between the anchor rods.
Wherein, the springboard adopts wood springboard or steel springboard, and length and cylinder sleeve interval phase-match.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a tunnel excavation rack suitable for continuous variable span which characterized in that includes:
a frame body: the span of the frame body is equal to the minimum section size of the tunnel;
anchor rod: one end of the support is inserted into the primary support, and the other end of the support is exposed out of the primary support;
lengthening the assembly: one end of the anchor rod is fixed on the frame body, and the other end of the anchor rod can extend and is inserted into the exposed end of the anchor rod.
2. The continuously variable span tunneling gantry of claim 1, wherein the extension assembly includes a first mounting sleeve and a second extension member,
the first installation sleeve is installed on the frame body, and the second extension piece penetrates through the first installation sleeve, extends to the anchor rod, and is plugged at the exposed end of the anchor rod.
3. The continuous variable span tunneling gantry of claim 2, wherein the second extension and the anchor bar overlap a ramp.
4. The continuous variable span tunnel excavation bench of claim 3, wherein the first mounting sleeve is a cylindrical sleeve and the second extension member is a cylindrical tube.
5. The continuous variable span tunnel excavation bench of claim 3, wherein the first mounting sleeve is a rectangular parallelepiped sleeve and the second extension member is a square tube.
6. The continuous variable span tunnel excavation bench of claim 1, wherein the frame body comprises a support leg and a support surface, the support surface is installed in layers along the length direction of the support leg,
the branch surfaces of each layer are parallel, and the length of each layer is equal to the minimum section size of the tunnel.
7. The continuous variable span tunneling gantry of claim 6, wherein the centerline of the branch surface coincides with the centerline of the tunnel.
8. The continuous variable span tunnel excavation bench of claim 6, wherein the extension assembly is mounted on the support leg and positioned below the counter surface.
9. The continuous variable span tunneling gantry of claim 2, wherein a middle portion of the second extension member is provided with a bowden scaffold upright.
10. The continuous variable span tunneling gantry of claim 2, wherein the centerline of the second extension is parallel to the anchor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121101669.1U CN214997742U (en) | 2021-05-21 | 2021-05-21 | Tunnel excavation rack suitable for continuously variable span |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121101669.1U CN214997742U (en) | 2021-05-21 | 2021-05-21 | Tunnel excavation rack suitable for continuously variable span |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214997742U true CN214997742U (en) | 2021-12-03 |
Family
ID=79132277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121101669.1U Active CN214997742U (en) | 2021-05-21 | 2021-05-21 | Tunnel excavation rack suitable for continuously variable span |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214997742U (en) |
-
2021
- 2021-05-21 CN CN202121101669.1U patent/CN214997742U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106939690B (en) | The anti-load-bearing scaffold that inclines of one kind | |
| CN214997742U (en) | Tunnel excavation rack suitable for continuously variable span | |
| CN101603330A (en) | Steel-Solderless node connector for steel-concrete composite structure | |
| CN216476276U (en) | Wall-attached mounting structure of attached scaffold | |
| CN217128743U (en) | Steel pipe concrete column structure | |
| CN212104817U (en) | Reinforced concrete column based on flange connection | |
| CN114075871A (en) | Triangular overhanging support base for slip form | |
| CN214365101U (en) | Assembled edge guardrail | |
| CN216986892U (en) | Spray set for dust fall of foundation pit | |
| CN215486089U (en) | Disc stand column device for tunnel construction | |
| CN214834919U (en) | Assembled platform of unloading is used in construction management is built in room | |
| CN215565981U (en) | Pin-connected panel template supports fixing device | |
| CN219530010U (en) | Utility tunnel bracket including bracket built-in fitting | |
| CN219011240U (en) | Detachable inner support bracket | |
| CN211500678U (en) | Contractible concrete-filled steel tube support | |
| CN218541407U (en) | Multifunctional scaffold | |
| CN214176758U (en) | Adjustable cable pipeline supporting and draining device | |
| CN217949357U (en) | Connecting device for concrete filled steel tubular column and concrete beam | |
| CN218862095U (en) | Building reinforcement support column | |
| CN210849903U (en) | Steel pipe bundle combined fixing structure | |
| CN221193676U (en) | Beam-column node steel hoop reinforcing structure | |
| CN212897604U (en) | Fastener for combined telescopic rod piece | |
| CN219710473U (en) | Buried iron frame in hidden water tank | |
| CN215858604U (en) | Steel pipe concrete column | |
| CN212534853U (en) | Canopy bearing structure and have its canopy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |