CN207829891U - A kind of preventing mean of Tunnel Base deformation - Google Patents
A kind of preventing mean of Tunnel Base deformation Download PDFInfo
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- CN207829891U CN207829891U CN201820251002.1U CN201820251002U CN207829891U CN 207829891 U CN207829891 U CN 207829891U CN 201820251002 U CN201820251002 U CN 201820251002U CN 207829891 U CN207829891 U CN 207829891U
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- tunnel
- horizontal drilling
- preventing mean
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- base deformation
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Abstract
The utility model discloses a kind of preventing means of Tunnel Base deformation, including the bore operation cavity in tunnel one or both sides is arranged, and the horizontal drilling being drilled with from the operation cavity along tunnel lateral direction direction, and the inner wall of the horizontal drilling is equipped with branch pillar.Bore operation cavity is arranged in tunnel one or both sides in the present apparatus, then is drilled with horizontal drilling by operation cavity, convenient for construction and maintenance；The horizontal drilling of the present apparatus is arranged along tunnel longitudinal direction, pass through the shrinkage deformation of horizontal drilling, to provide deformation space to the tunnel bottom country rock in entire tunnel longitudinal extent, so as to reduce the country rock dilatation caused by surrouding rock stress adjusts, achieve the purpose that eliminate tunnel arching of bottom, the deformation of control tunnel bottom；Horizontal drilling that the present apparatus is equipped with while stress release is played, the effect that Tunnel Base load destroys tunnel inverted arch during reducing operation is effectively controlled the construction and operations risks that complicated geological Tunnel Base arches up.
Description
Technical field
The utility model is related to Environment in Railway Engineering Construction technical field, especially a kind of preventing mean of Tunnel Base deformation.
Background technology
High-speed railway is high to Track regularity requirement, if orbital forcing is bad, will cause rolling stock high vibration,
Wheel-rail dynamic interaction increases exponentially, and seriously endangers track and rolling stock component, influences the raising of train speed, or even be easy to draw
It plays train derailing to topple, jeopardizes traffic safety.Currently, China express railway all uses non-fragment orbit pattern, non-fragment orbit to be laid with
At tunnel, the excavation in tunnel destroys the original original stress equilibrium state of tunnel bottom country rock, and tunnel bottom country rock needs new by a wheel
After the Stress relief phase, original stress equilibrium state can be just reentered.During at tunnel bottom, country rock carries out Stress relief, surrouding rock stress
Adjustment expansive rock can be caused to expand, to country rock volume generate Partial Incremental, cause non-fragment orbit tunnel bottom generate it is upwardly-deformed (on
Arch), seriously affect the ride comfort of high speed railway track.
The ride comfort of existing track circuit is mainly adjusted by fastener, but the maximum adjustment amount of fastener is limited.When
When the arch deflection at track tunnel bottom is more than fastener maximum adjustment amount, the ride comfort of circuit can not be ensured, railway will be influenced
Transport order, or even jeopardize traffic safety.It what technical measures to avoid or eliminate tunnel arching of bottom using, realize the deformation control of tunnel bottom
System is a significant technology issues of urgent need to resolve.
Utility model content
The goal of the invention of the utility model is：For it is of the existing technology be adjusted by fastener when, work as track
When the arch deflection at tunnel bottom is more than fastener maximum adjustment amount, the problem of ride comfort of circuit can not be ensured, one kind is provided
The preventing mean of Tunnel Base deformation.
To achieve the goals above, the technical solution adopted in the utility model is：
A kind of preventing mean of Tunnel Base deformation, including the bore operation cavity in tunnel one or both sides is set, with
And the horizontal drilling being drilled with from the operation cavity along tunnel lateral direction direction, the horizontal drilling are horizontally disposed, and
The inner wall of the horizontal drilling is equipped with branch pillar.
Bore operation cavity is arranged in tunnel one or both sides in the present apparatus, then is drilled with horizontal drilling by operation cavity, just
In construction and maintenance.All horizontal drillings of the present apparatus are arranged along tunnel longitudinal direction, by the shrinkage deformation of horizontal drilling, come
Enough deformation spaces are provided to the tunnel bottom country rock in entire tunnel longitudinal extent, so as to reduce because surrouding rock stress adjustment causes
Country rock dilatation, achieve the purpose that eliminate tunnel arching of bottom, the deformation of control tunnel bottom.It horizontal drilling that the present apparatus is equipped with while rising
Stress release is arrived, the effect that Tunnel Base load destroys tunnel inverted arch during reducing operation is effectively controlled intricately
The construction of matter Tunnel Base arch and operations risks, are greatly saved the regulation maintenance cost of later stage tunnel inverted arch arch, are anti-
Only complicated geological Tunnel Base arch design provides scientific basis, ensure that the safety of constructing tunnel and operation, makes tunnel
Design is more reasonable, safe and reliable.
As the preferred embodiment of the utility model, the direction of all horizontal drilling settings is each perpendicular to tunnel longitudinal direction side
To being arranged on the cross section in tunnel.
As the preferred embodiment of the utility model, the underface of the horizontal drilling setting supporting in the early stage, and the water
The length in flat drill hole is more than the lateral length in the tunnel, empty with the deformation for providing tunnel bottom country rock within the scope of entire tunnel lateral direction
Between.
As the preferred embodiment of the utility model, several water are equipped on the different height of the same cross section in tunnel
Flat drill hole.By the way that more horizontal drillings are arranged, the deformation space of bigger can be provided for tunnel bottom country rock, reach elimination tunnel arching of bottom,
Control the purpose of tunnel bottom deformation.
As the preferred embodiment of the utility model, the direction of a part of horizontal drilling setting is perpendicular to tunnel longitudinal direction side
To the direction that horizontal drilling described in another part is arranged favours tunnel longitudinal direction, that is, favours the cross section setting in tunnel.
As the preferred embodiment of the utility model, all horizontal drillings are uniformly arranged along tunnel longitudinal direction.
As the preferred embodiment of the utility model, the operation cavity is equipped with openable and closable door with tunnel junction, convenient
Detect the stress result of stress section, the work such as easy access.
As the preferred embodiment of the utility model, several foil gauges are equipped in the branch pillar, to answer branch pillar
Power situation is detected, and when the stress of branch pillar stress section tends towards stability, illustrates that the deformation at tunnel bottom is smaller, and tunnel bottom country rock is completed
The Stress relief of a new round, has reentered original stress equilibrium state, it is contemplated that close to horizontal drilling.
As the preferred embodiment of the utility model, a diameter of 10cm-30cm of the horizontal drilling.
As the preferred embodiment of the utility model, the branch pillar is pvc pipe or steel pipe.
In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：
Bore operation cavity is arranged in tunnel one or both sides in the present apparatus, then is drilled with horizontal drilling by operation cavity, just
In construction and maintenance.All horizontal drillings of the present apparatus are arranged along tunnel longitudinal direction, by the shrinkage deformation of horizontal drilling, come
Enough deformation spaces are provided to the tunnel bottom country rock in entire tunnel longitudinal extent, so as to reduce because surrouding rock stress adjustment causes
Country rock dilatation, achieve the purpose that eliminate tunnel arching of bottom, the deformation of control tunnel bottom.It horizontal drilling that the present apparatus is equipped with while rising
Stress release is arrived, the effect that Tunnel Base load destroys tunnel inverted arch during reducing operation is effectively controlled intricately
The construction of matter Tunnel Base arch and operations risks, are greatly saved the regulation maintenance cost of later stage tunnel inverted arch arch, are anti-
Only complicated geological Tunnel Base arch design provides scientific basis, ensure that the safety of constructing tunnel and operation, makes tunnel
Design is more reasonable, safe and reliable.
Description of the drawings
Fig. 1 is the structural schematic diagram of the preventing mean of Tunnel Base deformation described in the utility model.
It is marked in figure：1- tunnels bottom country rock, 2- preliminary bracings, 3- secondary linings, 4- inverted arch filled layers, 5- road bed boards, 6- rails
Pillow, 7- non-fragment orbits, 8- operation cavitys, 9- horizontal drillings.
Specific implementation mode
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.
As shown in Figure 1, non-fragment orbit tunnel bottom point includes mainly tunnel bottom country rock 1, set successively above tunnel bottom country rock 1
There are preliminary bracing 2, secondary lining 3, inverted arch filled layer 4, then be laid with road bed board 5 on the inverted arch filled layer 4, in the railway roadbed
Plate 5 is equipped with sleeper 6, and non-fragment orbit 7 is equipped on the sleeper 6.
The preventing mean of a kind of Tunnel Base deformation, including the bore operation cavity 8 in tunnel side is set, and from institute
State the horizontal drilling 9 for a diameter of 10cm-30cm that operation cavity 8 is drilled with along tunnel lateral direction direction, all horizontal brills
Hole 9 is uniformly arranged along tunnel longitudinal direction, and the inner wall of the horizontal drilling 9 be equipped with branch pillar, the branch pillar be pvc pipe or
Steel pipe, the branch pillar is interior to be equipped with several foil gauges.The operation cavity 8 is equipped with openable and closable door with tunnel junction, convenient
Detect the stress result of stress section, the work such as easy access.
The underface of supporting in the early stage 2 is arranged in the horizontal drilling 9, and the direction of all horizontal drillings 9 setting is equal
Perpendicular to tunnel longitudinal direction, the length of the horizontal drilling 9 is more than the lateral length in the tunnel, in the same cross section in tunnel
Different height be equipped with several horizontal drillings 9.
Bore operation cavity is arranged in tunnel side in the present apparatus, then is drilled with horizontal drilling by operation cavity, convenient for construction
And maintenance.The horizontal drilling of the present apparatus is uniformly arranged along tunnel longitudinal direction, by the shrinkage deformation of horizontal drilling, to entire
Tunnel bottom country rock in tunnel longitudinal extent provides enough deformation spaces, so as to reduce the country rock caused by surrouding rock stress adjusts
Dilatation achievees the purpose that eliminate tunnel arching of bottom, the deformation of control tunnel bottom.Horizontal drilling that the present apparatus is equipped with while playing is answered
Power discharges, and the effect that Tunnel Base load destroys tunnel inverted arch during reducing operation is effectively controlled complicated geological tunnel
The construction of substrate arch and operations risks, are greatly saved the regulation maintenance cost of later stage tunnel inverted arch arch, to prevent complexity
The arch design of geology Tunnel Base provides scientific basis, ensure that the safety of constructing tunnel and operation, makes Tunnel Design more
Adduction is managed, is safe and reliable.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (10)
1. a kind of preventing mean of Tunnel Base deformation, which is characterized in that including the drilling work in tunnel one or both sides is arranged
Industry cavity (8), and the horizontal drilling (9) that is drilled with from the operation cavity (8) along tunnel lateral direction direction, and the level
The inner wall of drilling (9) is equipped with branch pillar.
2. a kind of preventing mean of Tunnel Base deformation according to claim 1, which is characterized in that all horizontal brills
The direction of hole (9) setting is each perpendicular to tunnel longitudinal direction.
3. a kind of preventing mean of Tunnel Base deformation according to claim 2, which is characterized in that the horizontal drilling
(9) underface of setting supporting in the early stage (2), and the length of the horizontal drilling (9) is more than the lateral length in the tunnel.
4. a kind of preventing mean of Tunnel Base deformation according to claim 2, which is characterized in that same transversal in tunnel
The different height in face is equipped with several horizontal drillings (9).
5. a kind of preventing mean of Tunnel Base deformation according to claim 1, which is characterized in that a part of level
Drill (9) setting direction perpendicular to tunnel longitudinal direction, the direction of horizontal drilling (9) setting described in another part favours tunnel
Road longitudinal direction.
6. a kind of preventing mean of Tunnel Base deformation according to claim 1, which is characterized in that all horizontal brills
Hole (9) is uniformly arranged along tunnel longitudinal direction.
7. a kind of preventing mean of Tunnel Base deformation according to claim 1, which is characterized in that the operation cavity
(8) it is equipped with openable and closable door with tunnel junction.
8. a kind of preventing mean of Tunnel Base deformation according to claim 1, which is characterized in that set in the branch pillar
There are several foil gauges.
9. a kind of preventing mean of Tunnel Base deformation according to claim 1, which is characterized in that the horizontal drilling
(9) a diameter of 10cm-30cm.
10. according to a kind of preventing mean of any Tunnel Base deformations of claim 1-9, which is characterized in that the branch
Pillar is pvc pipe or steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251002.1U CN207829891U (en) | 2018-02-11 | 2018-02-11 | A kind of preventing mean of Tunnel Base deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251002.1U CN207829891U (en) | 2018-02-11 | 2018-02-11 | A kind of preventing mean of Tunnel Base deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207829891U true CN207829891U (en) | 2018-09-07 |
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ID=63397829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820251002.1U Active CN207829891U (en) | 2018-02-11 | 2018-02-11 | A kind of preventing mean of Tunnel Base deformation |
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| CN (1) | CN207829891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617077A (en) * | 2019-09-20 | 2019-12-27 | 中铁十八局集团有限公司 | Construction method for preventing floor heave of tunnel bottom inverted arch |
-
2018
- 2018-02-11 CN CN201820251002.1U patent/CN207829891U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617077A (en) * | 2019-09-20 | 2019-12-27 | 中铁十八局集团有限公司 | Construction method for preventing floor heave of tunnel bottom inverted arch |
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