CN206571503U - Existing line safeguard structure - Google Patents
Existing line safeguard structure Download PDFInfo
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- CN206571503U CN206571503U CN201720300802.3U CN201720300802U CN206571503U CN 206571503 U CN206571503 U CN 206571503U CN 201720300802 U CN201720300802 U CN 201720300802U CN 206571503 U CN206571503 U CN 206571503U
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- existing
- tunnel
- existing line
- vault
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Abstract
The utility model is related to existing line safeguard structure, including existing hangar tunnel and open cut tunnel, and the open cut tunnel includes the bearing structure of the vault and the support vault above the existing hangar tunnel.With existing line safeguard structure described in the utility model, for internal layer be existing hangar tunnel, outer layer be open cut tunnel double-layer structure, globality is preferable, can bear larger vertical force and and lateral pressure, safety stock is high, even if falling rocks punctures the existing hangar tunnel formation valid threat also being difficult to after the open cut tunnel of outer layer to internal layer, improve protection level, open cut tunnel is built in existing hangar tunnel outer layer, existing shed hole structure is not destroyed, massif is disturbed small, it is to avoid big to tear the influence built in large scale and runed existing line open, reduce reconstruction cost.
Description
Technical field
The utility model is related to Tunnel Engineering field, particularly a kind of existing line safeguard structure.
Background technology
It is existing railway, the conventional measure of highway protection rockfall to build hangar tunnel, but because top is freely supported structure, it is overall
Stability and safety stock be not high, is generally used for that landslide amount is less or a small amount of falling rocks location；Transformed in existing railway, highway technology
During, it is found that the situation that falling rocks punctures shed tunnel top T beams often occur in some falling rocks locations, above existing railway, highway such as
There is large area weathering, during broken rock mass, traditional shed hole structure cannot ensure the safety of driving operation.
How to be transformed on the railway, identitypath of existing driving, lift hangar tunnel rock-fall proof ability, and driving is not transported
The problems such as building into excessive influence letter is to be solved.
Utility model content
Goal of the invention of the present utility model is：The problem of existing for prior art is protected there is provided a kind of existing line
Structure.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of existing line safeguard structure, including existing hangar tunnel and open cut tunnel, the open cut tunnel include being located at the existing hangar tunnel
The vault of top and the bearing structure of the support vault.
It is that internal layer is that existing hangar tunnel, outer layer are the two of open cut tunnel using existing line safeguard structure described in the utility model
Rotating fields, globality preferably, can bear larger vertical force and and lateral pressure, safety stock is high, even if falling rocks punctures outer layer
The existing hangar tunnel formation valid threat to internal layer also is difficult to after open cut tunnel, protection level is improved, open cut tunnel is built in outside existing hangar tunnel
Layer, does not destroy existing shed hole structure, massif is disturbed small, it is to avoid big to tear the influence built in large scale and runed existing line open, reduced
Reconstruct cost.
Preferably, the bearing structure include stalk formula ear wall or/and reinforced concrete plinth, the stalk formula ear wall or
Reinforced concrete plinth described in person is located at the existing hangar tunnel both sides.
Preferably, anchor pole is set on the reinforced concrete plinth, it is described anchor rod anchored in basement rock.
Preferably, the basis of the stalk formula ear wall is using pile foundation joist basis or with hole deep foundation.
Preferably, the pile foundation joist basis includes caisson, column, binder and joist, and the caisson is connected to base
Rock, the upper end of the two neighboring caisson is connected by the binder, and the caisson upper end connects the lower end of the column
Portion, all column upper ends connect the joist, and the joist connects the vault and concrete guard wall.
Preferably, anchor pole is set on the caisson, it is described anchor rod anchored in basement rock.
Preferably, band hole deep foundation includes setting coagulation in slabstone concrete foundation, the slabstone concrete foundation
Native barricade, the concrete guard wall, which is connected, sets arch hole on the vault, the concrete guard wall, to save bricklaying, described
Stone concrete basis is located on inclined rock foundation, and ground is excavated as step-like, and step width is more than or equal to 0.5m.
Preferably, the reinforced concrete plinth is connected to basement rock, and the vault is connected to the reinforced concrete plinth.
Preferably, the vault is uiform section arch ring structure, includes lining cutting layer, water barrier and waterproof successively from the inside to the outside
Layer.
Preferably, the lining cutting layer is reinforced concrete structure layer, and the water barrier is cement mortar structure sheaf, described anti-
Water layer is waterproof roll structure layer.
Preferably, both sides hogback fills and sets backfill stone on mortar flag stone layer, the mortar flag stone layer on the vault
Argillic horizon is set in layer, the backfill rock layers.
Preferably, the backfill gradient at the top of the open cut tunnel is 1:2-1:10.
Preferably, one section of new hangar tunnel is set up in existing the hangar tunnel porch or/and exit.
Using this structure setting, it is to avoid existing line porch falling rocks is jumped after open cut tunnel is dropped to falls on existing line
On, because open cut tunnel has received the falling rocks energy of the overwhelming majority, even if falling rocks continues jump and fallen, it will not also puncture new hangar tunnel to influence
The operation of existing line.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, it is that internal layer is that existing hangar tunnel, outer layer are open cut tunnels with existing line safeguard structure described in the utility model
Double-layer structure, globality preferably, can bear larger vertical force and and lateral pressure, safety stock is high, even if falling rocks punctures outer layer
Open cut tunnel after also be difficult to, to the formation valid threat of the existing hangar tunnel of internal layer, improve protection level, open cut tunnel is built in existing hangar tunnel
Outer layer, existing shed hole structure is not destroyed, massif is disturbed small, it is to avoid big to tear the influence built in large scale and runed existing line, reduction open
Reconstruction cost；
2nd, with existing line safeguard structure described in the utility model, new canopy is set in the existing hangar tunnel porch
Hole, using this structure setting, it is to avoid existing line porch falling rocks is jumped after open cut tunnel is dropped to be fallen on existing line, due to
Open cut tunnel has received the falling rocks energy of the overwhelming majority, even if falling rocks continues jump and fallen, will not also puncture new hangar tunnel to influence both wired
The operation on road.
Brief description of the drawings
Fig. 1 is the schematic diagram of existing line safeguard structure in embodiment；
Fig. 2 is the structural representation of the stalk formula ear wall on embodiment pile foundation joist basis；
Fig. 3 is Fig. 2 A-A sectional views；
Fig. 4 is the structural representation of the stalk formula ear wall with hole deep foundation in embodiment；
Fig. 5 is Fig. 4 B-B sectional views；
Fig. 6 is the structural representation of vault in embodiment.
Marked in figure：The existing hangar tunnels of 1-, 2- open cut tunnels, 3- vaults, 31- lining cutting layer, 32- water barriers, 33- waterproof layers, 4- is straight
Wall ear wall, 41- caissons, 42- columns, 43- binders, 44- joists, 45- slabstone concrete foundations, 5- reinforced concretes
Seat, 6- concrete guard walls, 7- mortar flag stones layer, 8- backfill rock layers, 9- argillic horizons.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
Embodiment
As shown in figures 1 to 6, a kind of existing line safeguard structure described in the utility model, including existing hangar tunnel 1 and open cut tunnel
2。
The open cut tunnel 2 includes the bearing structure of the vault 3 and the support vault 3 located at the existing top of hangar tunnel 1,
The existing hangar tunnel 1 is located at massif side slope；As shown in Figures 3 and 5, the bearing structure positioned at the existing outside of hangar tunnel 1 is
Stalk formula ear wall 4, on the basis of stalk formula ear wall 4 described in steep slope region using pile foundation joist basis, straight described in section of easy grade
The basis of wall ear wall 4 is using band hole deep foundation, and the bearing structure positioned at the existing inner side of hangar tunnel 1 is armored concrete
Pedestal 5, the reinforced concrete plinth 5 is connected to basement rock, and the vault 3 is connected to the reinforced concrete plinth 5, the steel
Grouting rock bolt group is set on reinforced concrete pedestal 5, and grouting rock bolt described in every group includes length 6m, diameter 22mm horizontal anchor pole,
Length 6m, diameter 22mm 45 ° of inclination anchor poles and length 10m, diameter 22mm vertical anchor pole, set along line direction at interval of 1m
Grouting rock bolt group described in one group is put, all grouting rock bolts are anchored in basement rock；Set new in the existing porch of hangar tunnel 1
Hangar tunnel.
As Figure 1-3, the pile foundation joist basis is stood including C35 armored concrete caisson 41, C35 armored concrete
Post 42, C35 armored concrete binder 43 and C35 reinforced concrete supporting beams 44, the caisson 41 is connected to basement rock, two neighboring
The upper end of the caisson 41 is connected by the binder 43, and the upper end of caisson 41 connects the bottom of the column 42,
All upper ends of the column 42 connect the joist 44, and the joist 44 connects the vault 3 and C30 concrete guard walls 6, described
Anchor pole group is set on caisson 41, and anchor pole described in every group includes two length 14m, diameter 25mm inclination anchor poles, along circuit side
To at interval of 2m, anchor pole group described in one group is set, it is all described anchor rod anchored in basement rock.
As shown in Fig. 1,4 and 5, band hole deep foundation includes C25 slabstones concrete foundation 45, described stone concrete base
C30 concrete guard walls 6 are set on plinth 45, and the concrete guard wall 6, which is connected, sets arch on the vault 3, the concrete guard wall 6
Hole, to save bricklaying, the slabstone concrete foundation 45 is located on inclined rock foundation, and ground is excavated as step-like, step
Width is more than or equal to 0.5m.
As shown in fig. 6, the vault 3 is uiform section arch ring structure, include lining cutting layer 31, water barrier 32 successively from the inside to the outside
With waterproof layer 33, the lining cutting layer 31 is the thick C35 reinforced concrete structure layers of 0.8m, the water barrier 32 is 0.05m thick
M10 cement mortar structure sheafs, the waterproof layer 33 is the thick BAC double-sided self-adhesive waterproof coiled materials structure sheafs of 0.003m.
As shown in Figures 3 and 5, both sides hogback fills setting on mortar flag stone layer 7, the mortar flag stone layer 7 on the vault 3
The thickness of backfill rock layers 8 on backfill rock layers 8, the center line of open cut tunnel 2 is to be set in 2.5m, the backfill rock layers 8
Thickness is 0.3m argillic horizon 9.The backfill gradient at the top of open cut tunnel 2 is 1:10.As shown in figure 1, entering in the existing hangar tunnel 1
One section of new hangar tunnel is set up at mouthful, using this structure setting, it is to avoid existing line porch falling rocks is jumped after open cut tunnel 2 is dropped to
Fall on existing line, because open cut tunnel 2 has received the falling rocks energy of the overwhelming majority, even if falling rocks continues jump and fallen, will not also puncture
New hangar tunnel is so as to influence the operation of existing line.
It is that internal layer is that existing hangar tunnel 1, outer layer are open cut tunnels 2 with existing line safeguard structure described in the utility model
Double-layer structure, globality preferably, can bear larger vertical force and and lateral pressure, safety stock is high, even if falling rocks punctures outer layer
Open cut tunnel 2 after also be difficult to, to the formation valid threat of the existing hangar tunnel 1 of internal layer, improve protection level, open cut tunnel 2 is built in existing canopy
The outer layer of hole 1, the existing structure of hangar tunnel 1 is not destroyed, massif is disturbed small, it is to avoid big to tear the influence built in large scale and runed existing line open,
Reduce reconstruction cost.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of existing line safeguard structure, including existing hangar tunnel (1) and open cut tunnel (2), it is characterised in that open cut tunnel (2) bag
Include the vault (3) above the existing hangar tunnel (1) and the bearing structure of the support vault (3).
2. existing line safeguard structure according to claim 1, it is characterised in that the bearing structure includes stalk formula ear
Wall (4) or/and reinforced concrete plinth (5), the stalk formula ear wall (4) or the reinforced concrete plinth (5) are located at institute
State existing hangar tunnel (1) both sides.
3. existing line safeguard structure according to claim 2, it is characterised in that the basis of the stalk formula ear wall (4)
Using pile foundation joist basis or with hole deep foundation.
4. existing line safeguard structure according to claim 3, it is characterised in that the pile foundation joist basis includes borehole
Stake (41), column (42), binder (43) and joist (44), the caisson (41) are connected to basement rock, the two neighboring borehole
The upper end of stake (41) is connected by the binder (43), and caisson (41) upper end connects the bottom of the column (42),
All column (42) upper ends connect the joist (44), and the joist (44) connects the vault (3) and concrete guard wall
(6)。
5. existing line safeguard structure according to claim 3, it is characterised in that band hole deep foundation is mixed including slabstone
Concrete guard wall (6), concrete guard wall (6) connection are set on solidifying earth foundation (45), the slabstone concrete foundation (45)
Arch hole is set on the vault (3), the concrete guard wall (6).
6. existing line safeguard structure according to claim 2, it is characterised in that the reinforced concrete plinth (5) is even
Basement rock is connected to, the vault (3) is connected to the reinforced concrete plinth (5).
7. existing line safeguard structure according to claim 1, it is characterised in that the vault (3) is uiform section arch ring
Structure, includes lining cutting layer (31), water barrier (32) and waterproof layer (33) successively from the inside to the outside.
8. existing line safeguard structure according to claim 7, it is characterised in that the lining cutting layer (31) is reinforced concrete
Soil structure layer, the water barrier (32) is cement mortar structure sheaf, and the waterproof layer (33) is waterproof roll structure layer.
9. the existing line safeguard structure according to claim any one of 1-8, it is characterised in that two on the vault (3)
Side hogback fills and sets backfill rock layers (8), the backfill rock layers on mortar flag stone layer (7), the mortar flag stone layer (7)
(8) argillic horizon (9) is set on.
10. existing line safeguard structure according to claim 9, it is characterised in that in existing hangar tunnel (1) porch
Or/and one section of new hangar tunnel is set up in exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720300802.3U CN206571503U (en) | 2017-03-24 | 2017-03-24 | Existing line safeguard structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720300802.3U CN206571503U (en) | 2017-03-24 | 2017-03-24 | Existing line safeguard structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206571503U true CN206571503U (en) | 2017-10-20 |
Family
ID=60053794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720300802.3U Active CN206571503U (en) | 2017-03-24 | 2017-03-24 | Existing line safeguard structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206571503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487066A (en) * | 2018-03-28 | 2018-09-04 | 中交公局第三工程有限公司 | High slope bridge construction technique based on Existing Railway Line |
-
2017
- 2017-03-24 CN CN201720300802.3U patent/CN206571503U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487066A (en) * | 2018-03-28 | 2018-09-04 | 中交公局第三工程有限公司 | High slope bridge construction technique based on Existing Railway Line |
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