CN219865050U - Auxiliary installation system for tunnel primary support arch frame - Google Patents
Auxiliary installation system for tunnel primary support arch frame Download PDFInfo
- Publication number
- CN219865050U CN219865050U CN202320430109.3U CN202320430109U CN219865050U CN 219865050 U CN219865050 U CN 219865050U CN 202320430109 U CN202320430109 U CN 202320430109U CN 219865050 U CN219865050 U CN 219865050U
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- side wall
- arch
- support
- top hydraulic
- 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
- 238000009434 installation Methods 0.000 title claims abstract description 23
- 210000004258 portal system Anatomy 0.000 claims description 15
- 238000013461 design Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 7
- 239000011435 rock Substances 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011378 shotcrete Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to an auxiliary installation system of a tunnel primary support arch frame, which comprises a trolley portal frame system and a trolley travelling system for driving the trolley portal frame system to travel, wherein a first side wall hydraulic cylinder is movably installed on a side support on the left side of the trolley portal frame system, a second side wall hydraulic cylinder is movably installed on a side support on the right side of the trolley portal frame system, side wall arch frame supporting and positioning cross bars are detachably installed at the end parts of piston rods of the first side wall hydraulic cylinder and the second side wall hydraulic cylinder, a first top hydraulic cylinder is movably installed on the left side of a top support of the trolley portal frame system, a second top hydraulic cylinder is movably installed on the right side of the top support of the trolley portal frame system, and top arch frame supporting and positioning cross bars are detachably installed at the end parts of piston rods of the first top hydraulic cylinder and the second top hydraulic cylinder. The utility model reduces the number and time of construction operators exposed below the surrounding rock in the primary support operation process, improves the safety coefficient of the primary support and reduces the safety risk.
Description
Technical Field
The utility model relates to the field of tunnel construction, in particular to an auxiliary installation system for an initial support arch frame of a tunnel.
Background
The anchor spraying and arch supporting is a main primary supporting arm section of a tunnel in a poor geological section, a bias shallow buried and weathered rock section, the arch can be quickly loaded after being installed, the stability of a tunnel excavation section is ensured, the quick completion of the primary supporting is realized, the effect of the primary supporting is fully exerted, and the construction operation safety of subsequent procedures is ensured.
The tunnel arch is usually processed outside the tunnel in sections, the transportation vehicle is transported into the tunnel, the loader loads the arch onto the excavation rack, 6-8 primary support operators simply position the arch through shoulder and pipe tops, and in the process of bolting the arch sections, the operators are required to continuously adjust the angles and positions of the arch to realize the centering of bolt holes, so that the installation of the arch is completed.
But the following problems are liable to occur during the installation process:
1. a plurality of construction operators are completely exposed to surrounding rocks without any protection, and when the rock falls, the construction operation is high in safety risk;
2. the arch centering installation space is poor in qualification rate, because the segments are roughly positioned during installation, the segment connection needs to be continuously adjusted, once the arch centering is connected, the space adjustment is very difficult, and finally, the arch centering space is different in size and larger in position deviation is caused;
3. because the arch centering and segment connection are completely carried out by workers on the narrow bench, the labor intensity is high, the operation is inconvenient, the centering of the connecting plate is difficult, the installation of bolts is difficult, the quantity of bolts is insufficient, the bolts are not screwed down, the arch centering is distorted, the segment connection quality of the arch centering is seriously affected, the construction quality of the primary support is finally poor, and the design requirement cannot be met.
Disclosure of Invention
The utility model aims to solve the problems of high safety risk of installation and construction of an initial support arch frame, poor connection quality among arch frame sections and large arch frame installation space and position deviation in the prior art, and provides an auxiliary installation system of the tunnel initial support arch frame.
The utility model adopts the following technical scheme to realize the aim: the utility model provides a tunnel preliminary bracing arch frame auxiliary installation system, including the platform truck portal system, the platform truck traveling system of drive platform truck portal system walking, movable mounting has first lateral wall hydraulic cylinder on the lateral part support of platform truck portal system left side, movable mounting has second lateral wall hydraulic cylinder on the lateral part support of right side, the piston rod tip demountable installation of first lateral wall hydraulic cylinder and second lateral wall hydraulic cylinder has lateral wall arch frame to support the location horizontal pole, movable mounting has first top hydraulic cylinder in the top support left side of platform truck portal system, movable mounting has the second top hydraulic cylinder on the right side, the piston rod tip demountable installation of first top hydraulic cylinder and second top hydraulic cylinder has top arch frame to support the location horizontal pole, the preliminary bracing arch frame is fixed temporarily through lateral wall arch frame support location horizontal pole, top arch frame support location horizontal pole, install the lateral wall hydraulic cylinder bracket that is used for fixing a location first lateral wall hydraulic cylinder, the second lateral wall hydraulic cylinder between first top hydraulic cylinder and the second top hydraulic cylinder, demountable installation top hydraulic cylinder dead lever.
Specifically, the opposite side walls of the first top hydraulic cylinder and the second top hydraulic cylinder are correspondingly provided with sleeves, the fixing rods of the top hydraulic cylinders are U-shaped, and the first top hydraulic cylinder and the second top hydraulic cylinder are inserted into the sleeves through the fixing rods of the top hydraulic cylinders to be fixed after being in a vertical state.
Specifically, the side wall hydraulic cylinder bracket is movably arranged on the side support, the top of the side wall hydraulic cylinder bracket is provided with a clamping ring, and the first side wall hydraulic cylinder and the second side wall hydraulic cylinder are respectively clamped and fixed through the corresponding clamping rings.
In particular, the clamping brackets are arranged at the end parts of piston rods of the first side wall hydraulic cylinder, the second side wall hydraulic cylinder, the first top hydraulic cylinder and the second top hydraulic cylinder, and the side wall arch supporting and positioning cross rod and the top arch supporting and positioning cross rod are respectively clamped and fixed through the corresponding clamping brackets.
In particular, arch positioning clasps are mounted on the side wall arch support positioning crossbars and the top arch support positioning crossbars according to the designed spacing of the primary support arch.
The beneficial effects of the utility model are as follows:
1. the utility model reduces the number and time of construction operators exposed below the surrounding rock in the primary support operation process, improves the safety coefficient of the primary support and reduces the safety risk.
2. The utility model has the advantages that the arch frame segments are better in connection effect, the difficulty of segment connection is reduced, the condition of insufficient bolts is greatly reduced, and the phenomena of firm bolt connection and arch frame distortion are greatly reduced; the qualification rate of the arch center installation space is improved, the compactness of the arch center is improved, and the smoothness of the primary support is good.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: 1-a first side wall hydraulic cylinder; 2-a second side wall hydraulic cylinder; 3-a side wall arch supporting and positioning cross bar; 4-a first top hydraulic ram; 5-a second top hydraulic ram; 6-supporting and positioning cross bars by the top arch; 7-an initial supporting arch frame; 8-a trolley gantry system; 9-a trolley traveling system; 10-a top hydraulic cylinder fixing rod; 11-side wall hydraulic cylinder bracket; 12-side brackets; 13-top rack; 14-a sleeve; 15-a clamping ring;
the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1, an auxiliary installation system for a tunnel primary support arch frame comprises a trolley portal system 8 and a trolley travelling system 9 for driving the trolley portal system 8 to travel, wherein a first side wall hydraulic cylinder 1 is movably installed on a side support 12 on the left side of the trolley portal system 8, a second side wall hydraulic cylinder 2 is movably installed on a side support 12 on the right side, a side wall hydraulic cylinder bracket 11 for positioning the first side wall hydraulic cylinder 1 and the second side wall hydraulic cylinder 2 is installed on the side support 12, the side wall hydraulic cylinder bracket 11 is movably installed on the side support 12, a clamping ring 15 is installed at the top of the side wall hydraulic cylinder bracket, and the first side wall hydraulic cylinder 1 and the second side wall hydraulic cylinder 2 are respectively clamped and fixed through the corresponding clamping ring 15.
The left side movable mounting of the top support 13 of the trolley portal frame system 8 is provided with a first top hydraulic cylinder 4, the right side movable mounting is provided with a second top hydraulic cylinder 5, a top hydraulic cylinder fixing rod 10 is detachably mounted between the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5, the opposite side walls of the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5 are correspondingly provided with a sleeve 14, the top hydraulic cylinder fixing rod 10 is U-shaped, and the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5 are inserted into the sleeve 14 through the top hydraulic cylinder fixing rod 10 to be fixed in the inside after being in a vertical state.
The piston rod ends of the first side wall hydraulic cylinder 1 and the second side wall hydraulic cylinder 2 are detachably provided with a side wall arch supporting and positioning cross rod 3, the piston rod ends of the first top hydraulic cylinder 4 and the second non-understanding hydraulic cylinder 5 are detachably provided with a top arch supporting and positioning cross rod 6, the piston rod ends of the first side wall hydraulic cylinder 1, the second side wall hydraulic cylinder 2, the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5 are provided with clamping brackets, the side wall arch supporting and positioning cross rod 3 and the top arch supporting and positioning cross rod 6 are respectively fixed through corresponding clamping brackets, the primary supporting arch 7 is temporarily fixed through the side wall arch supporting and positioning cross rod 3 and the top arch supporting and positioning cross rod 6, and arch positioning clamping rings are arranged on the side wall arch supporting and positioning cross rod 3 and the top arch supporting and positioning cross rod 6 according to the design space of the primary supporting arch 7.
Example 1
The auxiliary installation system comprises a trolley portal system 8 and a trolley travelling system 9 for driving the trolley portal system 8 to travel, wherein a first side wall hydraulic cylinder 1 is movably installed on a side support 12 on the left side of the trolley portal system 8, a second side wall hydraulic cylinder 2 is movably installed on a side support 12 on the right side, a side wall hydraulic cylinder bracket 11 for positioning the first side wall hydraulic cylinder 1 and the second side wall hydraulic cylinder 2 is installed on the side support 12, the side wall hydraulic cylinder bracket 11 is movably installed on the side support 12, a clamping ring 15 is installed at the top of the side wall hydraulic cylinder bracket, and the first side wall hydraulic cylinder 1 and the second side wall hydraulic cylinder 2 are respectively clamped and fixed through the corresponding clamping ring 15;
specifically, the trolley portal frame system 8 can be formed by double-splicing I18I-steel, the length is 6m, the height is adjusted according to the excavation section, the main frame is in an inverted U shape, the side brackets 12 are positioned on two sides of the main frame, and the top bracket 13 is positioned on the top of the main frame;
the trolley traveling system 9 is formed by processing a steel plate, supporting rib plates, bearings, rollers, corresponding power mechanisms and the like, and is mainly used for driving the trolley portal system 8 to travel by adopting a traveling driving system existing in the market;
the support member part of lateral wall hydraulic cylinder bracket 11 lower part can be by I14 shaped steel and ordinary semicircle steel pipe welding process preparation, and clamp ring 15 installs at support member top, and support member rotates and installs at lateral part support 12 top, and angle when convenient adjustment first lateral wall hydraulic cylinder 1, second lateral wall hydraulic cylinder 2 use, and clamp ring be the arc ring, and the arc ring tip is equipped with the connection piece, is equipped with the round hole on the connection piece, and the round hole reaches clamping action through the through bolt and screw up the nut.
The left side of a top bracket 13 of the trolley portal frame system 8 is movably provided with a first top hydraulic cylinder 4, the right side is movably provided with a second top hydraulic cylinder 5, a top hydraulic cylinder fixing rod 10 is detachably arranged between the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5, the opposite side walls of the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5 are correspondingly provided with a sleeve 14, the top hydraulic cylinder fixing rod 10 is U-shaped, and the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5 are inserted into the sleeve 14 through the top hydraulic cylinder fixing rod 10 to be fixed after being in a vertical state;
specifically, the sleeve 14 has a size of Φ50×3.5mm, the top cylinder fixing rod 10 may be made of a steel pipe with a size of Φ42×4mm, and two ends of the sleeve are provided with bends for inserting the sleeve 14 to fix the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5, so that the first top hydraulic cylinder and the second top hydraulic cylinder are kept in a vertical state.
The piston rod ends of the first side wall hydraulic cylinder 1 and the second side wall hydraulic cylinder 2 are detachably provided with a side wall arch supporting and positioning cross rod 3, the piston rod ends of the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5 are detachably provided with a top arch supporting and positioning cross rod 6, the piston rod ends of the first side wall hydraulic cylinder 1, the second side wall hydraulic cylinder 2, the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5 are provided with clamping brackets, the side wall arch supporting and positioning cross rod 3 and the top arch supporting and positioning cross rod 6 are respectively fixed through corresponding clamping brackets, the primary support arch 7 is temporarily fixed through the side wall arch supporting and positioning cross rod 3 and the top arch supporting and positioning cross rod 6, and arch positioning clamping rings are arranged on the side wall arch supporting and positioning cross rod 3 and the top arch supporting and positioning cross rod 6 according to the design interval of the primary support arch 7;
specifically, the side wall arch supporting and positioning cross bars 3 and the top arch supporting and positioning cross bars 6 can be made of steel pipes with the diameter of phi 89 x 6mm, arch positioning snap rings are installed according to the design intervals of the primary support arch frames 7 of different surrounding rocks, and temporary fixation with the primary support arch frames 7 is facilitated.
Specifically, the piston rod strokes of the first side wall hydraulic cylinder 1, the second side wall hydraulic cylinder 2, the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5 are not less than 1m, the supporting force is not less than 1t, 8 first top hydraulic cylinders 4 are designed in total, two first top hydraulic cylinders 4 are respectively arranged at the front and rear ends of the left top surface of the top bracket 13, two second top hydraulic cylinders 5 are respectively arranged at the front and rear ends of the right top surface of the top bracket 13 and correspond to the first top hydraulic cylinders 4 one by one; the two first side wall hydraulic cylinders 1 are respectively arranged at the front and rear ends of the top of the left side support 12, the two second side wall hydraulic cylinders 2 are respectively arranged at the front and rear ends of the top of the right side support 12 and are in one-to-one correspondence with the first side wall hydraulic cylinders 1; each oil cylinder is independently controlled to be retracted and released, and each oil cylinder is rotatably arranged and can be erected or laid down.
The working principle of the utility model is as follows: the method comprises the steps of finishing assembling arch segments on the ground near a tunnel face, then hanging assembled arches to side wall arch supporting and positioning cross bars 3 and top arch supporting and positioning cross bars 6 one by one, adjusting the positions of multiple arches according to the designed distance, fixing the arches through arch positioning clamping rings, then stretching and retracting through top oil cylinders and side wall oil cylinders, positioning the arches to the designed position, then constructing an arch support pad and a lock foot system, fixing the arches, and finally constructing an anchor rod, a net piece and sprayed concrete.
The working process comprises the following specific steps:
step one, assembling an arch frame;
after the arch is transported to the site, according to the assembly requirements of the design sections, the connection between the sections is carried out on the ground, and the bolt tightness inspection and the arch torsion degree inspection are completed;
step two, positioning a hydraulic cylinder;
the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5 are adjusted to be in an upright and non-stretched state, the top arch supporting and positioning cross rod 6 is placed on a clamping support at the tops of piston rods of the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5, the first top hydraulic cylinder 4 and the second top hydraulic cylinder 5 are fixed by a top hydraulic cylinder fixing rod 10, the first side wall hydraulic cylinder 1 and the second side wall hydraulic cylinder 2 are placed on a side bracket 12 by a certain angle, are fixed by a side wall hydraulic cylinder bracket 11 and are in an inclined and non-stretched state;
step three, installing and positioning an arch frame;
hanging the assembled arches on side wall arch supporting and positioning cross bars 3 and top arch supporting and positioning cross bars 6 according to the designed intervals, then stretching the top and side wall oil cylinders, timely adjusting the stretching length according to the condition of over-under excavation in the process, and carrying out support padding, construction foot locking systems and longitudinal connecting ribs on arch feet of the arches by adopting compact materials after the arches reach the designed positions, so as to further fix the arches;
fourthly, anchor spraying support;
after the arch centering is positioned, the operations of oil cylinder shrinkage, support positioning cross rod disassembly, oil cylinder fixing rod disassembly, oil cylinder tilting and the like are carried out, then the construction of shotcrete of the anchor rods and the reinforcing steel bar meshes is carried out, and the primary support operation is completed.
The utility model reduces the number and time of construction operators exposed below the surrounding rock in the primary support operation process, improves the safety coefficient of the primary support and reduces the safety risk; the utility model has the advantages that the arch frame segments are better in connection effect, the difficulty of segment connection is reduced, the condition of insufficient bolts is greatly reduced, and the phenomena of firm bolt connection and arch frame distortion are greatly reduced; the qualification rate of the arch center installation space is improved, the compactness of the arch center is improved, and the smoothness of the primary support is good.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.
Claims (5)
1. The auxiliary installation system for the initial support arch frame of the tunnel comprises a trolley portal system (8) and a trolley travelling system (9) for driving the trolley portal system (8) to travel, and is characterized in that a first side wall hydraulic cylinder (1) is movably installed on a side support (12) on the left side of the trolley portal system (8), a second side wall hydraulic cylinder (2) is movably installed on a side support (12) on the right side, side wall arch support positioning cross rods (3) are detachably installed at piston rod ends of the first side wall hydraulic cylinder (1) and the second side wall hydraulic cylinder (2), a first top hydraulic cylinder (4) is movably installed on the left side of a top support (13) of the trolley portal system (8), a second top hydraulic cylinder (5) is movably installed on the right side, a top arch support positioning cross rod (6) is detachably installed at the piston rod ends of the first top hydraulic cylinder (4) and the second top hydraulic cylinder (5), the initial support arch (7) is temporarily fixed through the side wall arch support positioning cross rods (3) and the top arch support positioning cross rods (6), the first side wall hydraulic cylinder (12) is installed on the side wall (1) and the second side wall hydraulic cylinder (11), a top hydraulic cylinder fixing rod (10) is detachably arranged between the first top hydraulic cylinder (4) and the second top hydraulic cylinder (5).
2. The auxiliary installation system for the tunnel primary support arch frame according to claim 1, wherein the opposite side walls of the first top hydraulic cylinder (4) and the second top hydraulic cylinder (5) are correspondingly provided with sleeves (14), the top hydraulic cylinder fixing rods (10) are U-shaped, and the first top hydraulic cylinder (4) and the second top hydraulic cylinder (5) are inserted into the sleeves (14) through the top hydraulic cylinder fixing rods (10) after being in a vertical state and are fixed.
3. The auxiliary installation system of the tunnel primary support arch frame according to claim 2, wherein the side wall hydraulic cylinder bracket (11) is movably installed on the side support (12), a clamping ring (15) is installed at the top, and the first side wall hydraulic cylinder (1) and the second side wall hydraulic cylinder (2) are respectively clamped and fixed through the corresponding clamping rings (15).
4. A tunnel primary support arch auxiliary installation system according to claim 3, wherein the piston rod ends of the first side wall hydraulic cylinder (1), the second side wall hydraulic cylinder (2), the first top hydraulic cylinder (4) and the second top hydraulic cylinder (5) are provided with clamping brackets, and the side wall arch support positioning cross rod (3) and the top arch support positioning cross rod (6) are respectively fixed by corresponding clamping brackets.
5. A tunnel primary support arch auxiliary mounting system according to claim 4, wherein arch positioning clasps are mounted on the side wall arch support positioning rails (3) and the top arch support positioning rails (6) according to the primary support arch (7) design spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320430109.3U CN219865050U (en) | 2023-03-09 | 2023-03-09 | Auxiliary installation system for tunnel primary support arch frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320430109.3U CN219865050U (en) | 2023-03-09 | 2023-03-09 | Auxiliary installation system for tunnel primary support arch frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865050U true CN219865050U (en) | 2023-10-20 |
Family
ID=88319341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320430109.3U Active CN219865050U (en) | 2023-03-09 | 2023-03-09 | Auxiliary installation system for tunnel primary support arch frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865050U (en) |
-
2023
- 2023-03-09 CN CN202320430109.3U patent/CN219865050U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109026025B (en) | Pipe jacking supporting and jacking system for construction tunnel connection channel | |
| CN219865050U (en) | Auxiliary installation system for tunnel primary support arch frame | |
| CN114704096A (en) | Climbing formula quick detach concrete spreader in pit shaft | |
| CN102817617B (en) | Novel inhaul cable type shield originating backrest substrate system | |
| JP2004190450A (en) | Wagen form device for box girder with strut, strut support device and construction method of box girder with strut | |
| CN109630175B (en) | Movable prestress supporting system and using method thereof | |
| CN111350345A (en) | Pull-rod-free template reinforcing system for outer wall of buried sewage treatment plant and installation method | |
| CN215290164U (en) | Slope supporting system | |
| CN113832967B (en) | Device for quickly connecting anchor rod and steel beam during beam crane installation and use method | |
| CN210919126U (en) | Tunnel preliminary bracing arch-changing supporting structure | |
| CN112758862B (en) | Roller way installation method | |
| CN113445512A (en) | Assembled adjustable supporting structure for foundation pit and debugging method | |
| CN111502722A (en) | Method for replacing arch by utilizing tunnel primary support arch replacing support structure | |
| CN110700277A (en) | Freely telescopic inner support for covering and digging station construction | |
| CN214271930U (en) | Be fixed in bed rock face and can have enough to meet need reinforcement bed-jig | |
| CN220868832U (en) | Adjustable clear water inclined wall template supporting structure | |
| CN213204148U (en) | Adjustable fixing device of waist rail template | |
| CN220233994U (en) | Utility tunnel cable installation device | |
| CN220768143U (en) | Sliding formwork device for open caisson construction | |
| CN207583399U (en) | Bored tunnel arch grid installation tool | |
| CN214741325U (en) | Novel adjustable pipe wall supporting trolley | |
| CN216690272U (en) | Adjustable operating platform for building engineering | |
| CN214543393U (en) | Roller type cable support | |
| CN218714867U (en) | Foundation-free assembly jig frame of large-span prestressed arch dry coal shed | |
| CN216612839U (en) | Fixing mechanism of bucket elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |