CN220522590U - Double-side pilot tunnel steel frame rock wall combined supporting system for four-lane tunnel - Google Patents
Double-side pilot tunnel steel frame rock wall combined supporting system for four-lane tunnel Download PDFInfo
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- CN220522590U CN220522590U CN202322305114.4U CN202322305114U CN220522590U CN 220522590 U CN220522590 U CN 220522590U CN 202322305114 U CN202322305114 U CN 202322305114U CN 220522590 U CN220522590 U CN 220522590U
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- steel frame
- tunnel
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- wall
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 128
- 239000010959 steel Substances 0.000 title claims abstract description 128
- 239000011435 rock Substances 0.000 title claims abstract description 56
- 239000002131 composite material Substances 0.000 claims 3
- 230000009977 dual effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- 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
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to a double-side pilot pit steel frame rock wall combined support system of a four-lane tunnel, which comprises a tunnel, a rock wall positioned below the middle part of the tunnel, an upper left primary support steel frame supported at the upper end of the left side wall of the tunnel, a lower left primary support steel frame supported at the lower end of the left side wall of the tunnel, a left transverse temporary steel frame supported at the left side of the bottom wall of the tunnel, a top primary support steel frame supported at the top wall of the tunnel, an upper right primary support steel frame supported at the upper end of the right side wall of the tunnel, a lower right primary support steel frame supported at the lower end of the right side wall of the tunnel, a left transverse temporary steel frame supported at the right side of the bottom wall of the tunnel, a left vertical temporary steel frame supported at the upper ends of the rock wall and the left upper primary support steel frame, and a right vertical temporary steel frame supported at the upper ends of the rock wall and the right upper primary support steel frame. The utility model can be used for the construction of four-lane tunnels.
Description
Technical Field
The utility model relates to the technical field of tunnel construction, in particular to a double-side pilot tunnel steel frame rock wall combined support system for a four-lane tunnel.
Background
The four-lane tunnel has large section, large span and small flatness, and is easy to collapse, roof fall and other accidents caused by a little carelessness in construction. The double-side-wall pilot tunnel method is a commonly adopted construction method when constructing a tunnel with an extra large section because the disturbance of the construction process to surrounding rock is small and the excavation section is closed as soon as possible. However, the design and the use standard are not uniform, the excavation process is complex, the temporary support is complicated to assemble and disassemble, large equipment is difficult to play a role, and the construction efficiency is low and the construction cost is high. Therefore, on the premise of ensuring safety, the double-side-wall pilot tunnel method is optimized, the number of parts and construction procedures is reduced, temporary support setting is optimized, and the like, so that the work efficiency is improved, and the cost is saved.
Disclosure of Invention
The utility model aims to provide a double-side pilot tunnel steel frame rock wall combined support system for a four-lane tunnel, which is used for construction of the four-lane tunnel.
The technical problems are solved by the following technical scheme: a four-roadway tunnel double-side pilot pit steel frame rock wall combined supporting system comprises a tunnel, a rock wall located below the middle part of the tunnel, an upper left primary support steel frame supported at the upper end of the left side wall of the tunnel, a lower left primary support steel frame supported at the lower end of the left side wall of the tunnel, a left transverse temporary steel frame supported at the left side of the bottom wall of the tunnel, a top primary support steel frame supported at the upper end of the right side wall of the tunnel, a lower right primary support steel frame supported at the lower end of the right side wall of the tunnel, a left transverse temporary steel frame supported at the right side of the bottom wall of the tunnel, a left vertical temporary steel frame supported at the upper end of the rock wall and the right vertical temporary steel frame supported at the upper end of the left primary support steel frame, and a left vertical temporary steel frame supported at the upper end of the rock wall and the right primary support steel frame, wherein the upper end of the upper left primary support steel frame is fixed together with the left end of the top primary support steel frame, the lower end is fixed together with the upper end of the left primary steel frame, the lower end of the left temporary steel frame is fixed together with the lower end of the left primary steel frame, the lower end is fixed together with the lower end of the right primary steel frame supported at the upper end of the right side wall, and the upper end of the right primary steel frame is fixed together with the upper end of the right primary steel frame. Reliable support can be performed for support construction.
Preferably, the lower end of the right upper primary support steel frame is fixed on the tunnel wall through a right upper locking anchor rod, and the lower end of the left upper primary support steel frame is fixed on the tunnel wall through a left upper locking anchor rod. The fixing is reliable.
Preferably, the lower end of the right lower primary support steel frame is fixed on the tunnel wall through a right lower foot locking anchor rod, and the lower end of the left lower primary support steel frame is fixed on the tunnel wall through a left lower foot locking anchor rod. The fixing is reliable.
The utility model further comprises a right temporary transverse supporting rod and a left temporary transverse supporting rod, wherein the right temporary transverse supporting rod is supported between the rock wall and the upper end of the right lower primary support steel frame, and the left temporary transverse supporting rod is supported between the rock wall and the upper end of the left lower primary support steel frame. The support reliability can be improved.
Preferably, the right temporary steel frame comprises a plurality of right vertical support rods, and the right temporary transverse support rods and the right vertical support rods are aligned in a one-to-one correspondence manner; the left temporary steel frame comprises a plurality of left vertical support rods, and the left temporary transverse support rods and the left vertical support rods are aligned in one-to-one correspondence. The support stability is good.
Preferably, the left vertical support bars and the right vertical support bars are aligned in one-to-one correspondence.
Preferably, the left end of the right temporary transverse supporting rod is provided with a right supporting plate supported on the right side surface of the rock wall, the right supporting plate is provided with a right pressing plate abutting on the upper surface of the rock wall, the right end of the left temporary transverse supporting rod is provided with a left supporting plate supported on the left side surface of the rock wall, and the left supporting plate is provided with a left pressing plate abutting on the upper surface of the rock wall. The support stability can be improved.
Preferably, the left temporary transverse supporting rod is connected to the left lower primary supporting steel frame through a bolt, and the right temporary transverse supporting rod is connected to the right lower primary supporting steel frame through a bolt.
Preferably, the left temporary transverse support rod comprises two left support half sections, the two left support half sections are connected together through a left flange, the right temporary transverse support rod comprises two right support half sections, and the two right support half sections are connected together through a right flange. The temporary transverse supporting rod is convenient to detach. Disconnecting the two halves, then lifting the half connected with the rock wall, and then removing the other half.
The beneficial effects of the utility model are as follows: safety and reliability: the method fully plays the advantage of high bearing capacity of the hard rock foundation, utilizes the lower step rock wall to form a steel frame-rock wall combined supporting system, enables the supporting system to be rapidly sealed into a ring, and has small disturbance and good safety.
Drawings
FIG. 1 is a schematic diagram of the present utility model.
In the figure: tunnel 1, rock wall 2, upper left preliminary steel frame 3, lower left preliminary steel frame 4, left horizontal temporary steel frame 5, top preliminary steel frame 6, upper right preliminary steel frame 7, lower right preliminary steel frame 8, right horizontal temporary steel frame 9, left vertical temporary steel frame 10, right vertical temporary steel frame 11, upper right foot locking anchor rod 12, upper left foot locking anchor rod 13, lower right foot locking anchor rod 14, lower left foot locking anchor rod 15, right temporary horizontal support rod 16, left temporary horizontal support rod 17, right vertical support rod 18, left vertical support rod 19, right support plate 20, right pressing plate 21, left support plate 22, left pressing plate 23, left flange 24, right flange 25.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, a four-lane tunnel double-side pilot pit steel frame rock wall combined support system comprises a tunnel 1, a rock wall 2 positioned below the middle part of the tunnel, an upper left primary support steel frame 3 supported at the upper end of the left side wall of the tunnel, a lower left primary support steel frame 4 supported at the lower end of the left side wall of the tunnel, a left transverse temporary steel frame 5 supported at the left side of the bottom wall of the tunnel, a top primary support steel frame 6 supported at the top wall of the tunnel, an upper right primary support steel frame 7 supported at the upper end of the right side wall of the tunnel, a lower right primary support steel frame 8 supported at the lower end of the right side wall of the tunnel, a right transverse temporary steel frame 9 supported at the right side of the bottom wall of the tunnel, a left vertical temporary steel frame 10 supported at the upper ends of the rock wall and the left primary support steel frame and a right vertical temporary steel frame 11 supported at the upper ends of the rock wall and the right primary support steel frame, the upper end of the left upper primary support steel frame is fixed with the left end of the top primary support steel frame, the lower end of the left upper primary support steel frame is fixed with the upper end of the left lower primary support steel frame, the left end of the left transverse temporary steel frame is fixed with the lower end of the left lower primary support steel frame, the right end of the left transverse temporary steel frame is supported on the lower end of the left side of the rock wall, the upper end of the right upper primary support steel frame is fixed with the right end of the top primary support steel frame, the lower end of the right transverse temporary steel frame is fixed with the upper end of the right lower primary support steel frame, and the right end of the right transverse temporary steel frame is supported on the lower end of the right side of the rock wall. The lower extreme of upper right preliminary bracing steelframe is fixed on the tunnel wall through upper right locking foot stock 12, and the lower extreme of upper left preliminary bracing steelframe is fixed on the tunnel wall through upper left locking foot stock 13. The lower extreme of right lower primary support steelframe is fixed on the tunnel wall through right lower lock foot stock 14, and the lower extreme of left lower primary support steelframe is fixed on the tunnel wall through left lower lock foot stock 15. The device also comprises a right temporary transverse supporting rod 16 and a left temporary transverse supporting rod 17, wherein the right temporary transverse supporting rod is supported between the rock wall and the upper end of the right lower primary supporting steel frame, and the left temporary transverse supporting rod is supported between the rock wall and the upper end of the left lower primary supporting steel frame. The right temporary steel frame comprises a plurality of right vertical support rods 18, and the right temporary transverse support rods and the right vertical support rods are aligned in a one-to-one correspondence manner; the left temporary steel frame comprises a plurality of left vertical support rods 19, and the left temporary transverse support rods and the left vertical support rods are aligned in a one-to-one correspondence. The left vertical supporting rods and the right vertical supporting rods are aligned in a one-to-one correspondence. The left end of the right temporary transverse supporting rod is provided with a right supporting plate 20 supported on the right side surface of the rock wall, the left supporting plate is provided with a right pressing plate 21 abutted on the upper surface of the rock wall, the right end of the left temporary transverse supporting rod is provided with a left supporting plate 22 supported on the left side surface of the rock wall, and the right supporting plate is provided with a left pressing plate 23 abutted on the upper surface of the rock wall. The left temporary transverse supporting rod is connected to the left lower primary supporting steel frame through a bolt, and the right temporary transverse supporting rod is connected to the right lower primary supporting steel frame through a bolt. The left temporary transverse support bar comprises two left support half sections which are connected together by a left flange 24, and the right temporary transverse support bar comprises two right support half sections which are connected together by a right flange 25.
Claims (9)
1. A four-lane tunnel double-side pilot pit steel frame rock wall combined supporting system comprises a tunnel and is characterized by further comprising a rock wall positioned below the middle part of the tunnel, an upper left primary support steel frame supported at the upper end of the left side wall of the tunnel, a lower left primary support steel frame supported at the lower end of the left side wall of the tunnel, a left transverse temporary steel frame supported at the left side of the bottom wall of the tunnel, a top primary support steel frame supported at the top wall of the tunnel, an upper right primary support steel frame supported at the upper end of the right side wall of the tunnel, a lower right primary support steel frame supported at the lower end of the right side wall of the tunnel, a left transverse temporary steel frame supported at the right side of the bottom wall of the tunnel, a left vertical temporary steel frame supported at the upper ends of the rock wall and the upper left primary support steel frame and a right vertical temporary steel frame supported at the upper ends of the rock wall and the upper right primary support steel frame, the upper end of the left upper primary support steel frame is fixed with the left end of the top primary support steel frame, the lower end of the left upper primary support steel frame is fixed with the upper end of the left lower primary support steel frame, the left end of the left transverse temporary steel frame is fixed with the lower end of the left lower primary support steel frame, the right end of the left transverse temporary steel frame is supported on the lower end of the left side of the rock wall, the upper end of the right upper primary support steel frame is fixed with the right end of the top primary support steel frame, the lower end of the right transverse temporary steel frame is fixed with the upper end of the right lower primary support steel frame, and the right end of the right transverse temporary steel frame is supported on the lower end of the right side of the rock wall.
2. The double-sided pilot steel frame rock wall combined support system for the four-lane tunnel according to claim 1, wherein the lower end of the right upper primary support steel frame is fixed on the tunnel wall through a right upper locking anchor rod, and the lower end of the left upper primary support steel frame is fixed on the tunnel wall through a left upper locking anchor rod.
3. The double-sided pilot steel frame rock wall combined support system of a four-lane tunnel according to claim 1 or 2, wherein the lower end of the right lower primary support steel frame is fixed on the tunnel wall through a right lower locking anchor rod, and the lower end of the left lower primary support steel frame is fixed on the tunnel wall through a left lower locking anchor rod.
4. The dual sided pilot steel frame rock wall composite support system of claim 1 or 2, further comprising a right temporary lateral support bar and a left temporary lateral support bar, the right temporary lateral support bar being supported between the rock wall and the upper end of the right lower primary support steel frame, the left temporary lateral support bar being supported between the rock wall and the upper end of the left lower primary support steel frame.
5. The double-sided pilot steel frame rock wall combined support system for the four-lane tunnel according to claim 4, wherein the right vertical temporary steel frame comprises a plurality of right vertical support rods, and the right temporary transverse support rods and the right vertical support rods are aligned in a one-to-one correspondence manner; the left temporary steel frame comprises a plurality of left vertical support rods, and the left temporary transverse support rods and the left vertical support rods are aligned in one-to-one correspondence.
6. The double sided pilot steel frame rock wall composite support system of claim 5, wherein said left and right vertical support bars are aligned in one-to-one correspondence.
7. The four-lane tunnel double-sided pilot steel frame rock wall combined support system according to claim 4, wherein the left end of the right temporary transverse support rod is provided with a right support plate supported on the right side surface of the rock wall, the right support plate is provided with a right pressing plate abutting on the upper surface of the rock wall, the right end of the left temporary transverse support rod is provided with a left support plate supported on the left side surface of the rock wall, and the left support plate is provided with a left pressing plate abutting on the upper surface of the rock wall.
8. The double-sided pilot steel frame rock wall combined support system of the four-lane tunnel according to claim 7, wherein the left temporary transverse support rod is connected to the left lower primary support steel frame through bolts, and the right temporary transverse support rod is connected to the right lower primary support steel frame through bolts.
9. The double sided pilot steel frame rock wall composite support system of claim 7, wherein the left temporary transverse support bar comprises two left support half sections connected together by a left flange, and the right temporary transverse support bar comprises two right support half sections connected together by a right flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322305114.4U CN220522590U (en) | 2023-08-28 | 2023-08-28 | Double-side pilot tunnel steel frame rock wall combined supporting system for four-lane tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322305114.4U CN220522590U (en) | 2023-08-28 | 2023-08-28 | Double-side pilot tunnel steel frame rock wall combined supporting system for four-lane tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220522590U true CN220522590U (en) | 2024-02-23 |
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ID=89928713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322305114.4U Active CN220522590U (en) | 2023-08-28 | 2023-08-28 | Double-side pilot tunnel steel frame rock wall combined supporting system for four-lane tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220522590U (en) |
-
2023
- 2023-08-28 CN CN202322305114.4U patent/CN220522590U/en active Active
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