CN110359954A - One kind passing through creep faults tunnel particle-filled layers error resilience structure and its construction method - Google Patents
One kind passing through creep faults tunnel particle-filled layers error resilience structure and its construction method Download PDFInfo
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- CN110359954A CN110359954A CN201910710026.8A CN201910710026A CN110359954A CN 110359954 A CN110359954 A CN 110359954A CN 201910710026 A CN201910710026 A CN 201910710026A CN 110359954 A CN110359954 A CN 110359954A
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- Prior art keywords
- tunnel
- lining
- particle
- filled layers
- section
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- 239000002245 particle Substances 0.000 title claims abstract description 42
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
Abstract
Creep faults particle-filled layers tunnel error resilience structure and its construction method are passed through the invention discloses one kind, including tunnel digs section across fault plane, tunnel structure successively includes that tunnel is backbreak contour line and preliminary bracing from outside to inside；Lower part is provided with particle-filled layers top and is provided with reserved changing of the relative positions space in preliminary bracing；Section Tunnel Second Lining of backbreaking passes through particle-filled layers, is connected on tunnel longitudinal direction with normal reach Tunnel Second Lining；Particle-filled layers are arranged in the present invention, when left and right or the up and down direction changing of the relative positions occur for creep faults, it is ensured that section secondary lining of backbreaking will not be destroyed due to the stratum changing of the relative positions；The elevation and ride comfort of track not will receive the influence of the stratum changing of the relative positions.
Description
Technical field
The present invention relates to tunnel constructions, and in particular to one kind passes through creep faults tunnel particle-filled layers error resilience structure
And its construction method.
Background technique
Tunnel can inevitably pass through active fault in Practical Project；It, will in stratum when the changing of the relative positions occurs for active fault
Permanent displacement can be generated.Such displacement is often that any supporting construction is all difficult to resist, it will causes tunnel structure serious
There is such as cracking, faulting of slab ends and destroys in damage.Since the site condition of Tunnel Engineering limits, once destruction just can not be rebuild and hardly possible
To repair, therefore influence of the fault displcement for tunnel or even route all fronts operation security is huge.
The creep changing of the relative positions is one of two kinds of major ways of faulting, and it is disconnected to be that fault belt generates as time goes by
The slow sliding process of layer region.It therefore is a kind of slow and having time build-up effect forms of motion.It is applied in engineering at present
Pass through creep faults band tunnel earthquake resistant construction be mainly " design of backbreaking " and " hinged design "." design of backbreaking " is according to creep
The issuable maximum magnitude of misalignment of tomography, expands tunnel cross-section size in tunneling." hinged design " is then to try to reduce
Tunnel segmental length makes a certain range of segment of shear-zone and its two sides keep relatively independent.Each rigidity tunnel segment uses
The relatively small flexible connection of rigidity.
Using the tunnel of " design of backbreaking " due to the changing of the relative positions amount of advance reservation creep faults, thus the changing of the relative positions pair is avoided
It is influenced caused by tunnel structure.However it backbreaks and will lead to tunnel-liner and section sudden enlargement occur in section of providing fortification against earthquakes and suddenly subtract
Small situation, being damped along journey when such mutation will increase air flowing, to increase the critical wind velocity in tunnel, so that cigarette
Gas discharge is more difficult or increases operation cost.Simultaneously as after " design of backbreaking " requires Tunnel Second Lining abutting to backbreak
Hole wall, it is therefore desirable to it is individually designed backbreak two lining form of section and use new formwork jumbo, thus increase design, difficulty of construction and
Cost.Using " hinged design " although by being flexibly connected the displacement for enabling tunnel to adapt to creep faults to a certain extent,
But the tunnel of fault displcement is adapted to, it may be difficult to guarantee the ride comfort of track, to influence passenger comfort even operation security.
Summary of the invention
In view of the problems of the existing technology the present invention provides the elevation and ride comfort of a kind of track for passing through compacted disconnected slip layer
Stratum changing of the relative positions influence is not will receive, sudden enlargement is also not present in tunnel cross-section and creep faults particle-filled layers tunnel is passed through in diminution
Road error resilience structure and its construction method.
The technical solution adopted by the present invention is that: one kind passes through creep faults tunnel error resilience structure, including tunnel dig section across
Passing fault face, tunnel structure successively include that tunnel is backbreak contour line and preliminary bracing from outside to inside；Lower part is arranged in preliminary bracing
There is particle-filled layers top to be provided with reserved changing of the relative positions space；Section Tunnel Second Lining of backbreaking passes through particle-filled layers, with normal reach
Tunnel Second Lining is connected on tunnel longitudinal direction.
Further, the particle-filled layers be can free rolling ceramsite material.
Further, section Tunnel Second Lining of backbreaking is prefbricated tunnel lining.
Further, section Tunnel Second Lining of backbreaking is identical as normal reach Tunnel Second Lining geomery.
One kind passing through creep faults tunnel error resilience construction method, comprising the following steps:
Step 1: backbreaking according to tunnel contour line of backbreaking to tunnel；
Step 2: applying preliminary bracing；
Step 3: tunnel is backbreak after contour line stabilization, and particle-filled layers are arranged in supporting in the early stage, and supporting top is reserved in the early stage
Changing of the relative positions space；
Step 4: according to the setting structure for section Tunnel Second Lining of backbreaking, adaptation is dug out in particle-filled layers and is backbreak section tunnel two
The channel of secondary lining cutting；
Step 5: a section Tunnel Second Lining of backbreaking for prefbricated tunnel lining being installed, keeps it vertical in tunnel with normal reach Tunnel Second Lining
It is smooth upwards to be connected.
The beneficial effects of the present invention are:
(1) present invention is by setting particle-filled layers, and when the changing of the relative positions of left and right directions occurs for creep faults, particle-filled layers can be certainly
By rolling, therefore the particle of section shrinkage side will roll to the widened side of section, and section secondary lining is backbreak in guarantee will not be by
It is destroyed in the stratum changing of the relative positions, therefore the elevation of track and ride comfort not will receive the influence of the stratum changing of the relative positions；
(2) present invention is by setting particle-filled layers, and when the changing of the relative positions of up and down direction occurs for creep faults, particle-filled layers will
Enter in reserved space due to being squeezed, a section Tunnel Second Lining of backbreaking will not be impacted；
(3) Tunnel Second Lining of backbreaking in the present invention is identical as normal through end shape, the size of Tunnel Second Lining；It is divulging information
Upper there is no the sudden enlargements or diminution of section, without individually designed secondary lining or use new formwork jumbo, overcome
The shortcomings that existing " design of backbreaking ".
Detailed description of the invention
Fig. 1 is tunnel cross section structural schematic diagram.
Fig. 2 is that tunnel endoparticle filled layer rolling situation schematic diagram when the left and right directions changing of the relative positions occurs for creep faults.
Fig. 3 is that tunnel endoparticle filled layer rolling situation schematic diagram when the up and down direction changing of the relative positions occurs for creep faults.
Fig. 4 is tunnel profile structural schematic diagram.
In figure: 1- backbreaks in tunnel contour line, 2- preliminary bracing, and 3- reserves changing of the relative positions space, 4- particle-filled layers, and 5- backbreaks section
Tunnel Second Lining, 6- normal reach Tunnel Second Lining, the upper disk stratum 7-, 8- lower wall stratum, 9- sectional layer.
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments.
As shown in figures 1-4, one kind passes through creep faults particle-filled layers tunnel error resilience structure, including tunnel dig section across
Passing fault face 9, tunnel structure successively include that tunnel is backbreak contour line 1 and preliminary bracing 2 from outside to inside；Lower part in preliminary bracing 2
It is provided with 4 top of particle-filled layers and is provided with reserved changing of the relative positions space 3；Section Tunnel Second Lining 5 of backbreaking passes through particle-filled layers 4,
It is connected on tunnel longitudinal direction with normal reach Tunnel Second Lining 6.
Particle-filled layers 4 be can free rolling ceramsite material preparation, ceramic material have certain bearing capacity.It backbreaks
Section Tunnel Second Lining 5 is prefbricated tunnel lining.Sectional layer 9 is located in upper disk stratum 7 and lower wall stratum.Tunnel is close in preliminary bracing 2
Road is backbreak contour line 1, reserved changing of the relative positions space 3 and particle-filled layers 4 be located at preliminary bracing 2 with backbreak section Tunnel Second Lining 5 it
Between；Reserved changing of the relative positions space 3 is located at headroom top in tunnel, and particle-filled layers 4 are then located at lower part.
One kind passing through creep faults particle-filled layers tunnel error resilience construction method, comprising the following steps:
Step 1: backbreaking according to tunnel contour line 1 of backbreaking to tunnel；
Step 2: applying preliminary bracing 2；
Step 3: tunnel is backbreak after the stabilization of contour line 1, and particle-filled layers 4,2 top of supporting in the early stage are arranged in supporting in the early stage 2
Reserved changing of the relative positions space 3；
Step 4: according to the setting structure for section Tunnel Second Lining 5 of backbreaking, adaptation is dug out in particle-filled layers 4 and is backbreak a section tunnel
The channel of secondary lining 5；
Step 5: section Tunnel Second Lining 5 of backbreaking of prefbricated tunnel lining being installed, makes it with normal reach Tunnel Second Lining 6 in tunnel
It is smooth on longitudinal direction to be connected.
Since section Tunnel Second Lining of backbreaking is using prefbricated tunnel lining, the compactness of particle-filled layers 4 can control,
To guarantee that particle can be rolled freely.When the changing of the relative positions of left and right directions occurs for creep faults, since particle-filled layers 4 can be rolled freely
It is dynamic, therefore the particle of section shrinkage side will roll to the widened side of section.It will not be by guarantee to backbreak section secondary lining 5
In stratum the changing of the relative positions and destroy.Therefore the elevation and ride comfort for being laid on the track in it will not be by the stratum changing of the relative positions
It influences.Similarly, when creep faults occur up and down direction the changing of the relative positions when, particle-filled layers 4 will due to be squeezed and into
Enter in reserved space, therefore Tunnel Second Lining 5 of backbreaking will not be impacted.Simultaneously because a section Tunnel Second Lining of backbreaking
5 is identical as the shape of normal reach Tunnel Second Lining 6, size.Therefore the sudden enlargement or diminution of section are not present in ventilation,
Without individually designed secondary lining or new formwork jumbo is used, overcomes existing " design of backbreaking " disadvantage.
Claims (5)
1. one kind passes through creep faults particle-filled layers tunnel error resilience structure, which is characterized in that dig section across disconnected including tunnel
Level (9), tunnel structure successively include that tunnel is backbreak contour line (1) and preliminary bracing (2) from outside to inside；In preliminary bracing (2)
Lower part is provided with particle-filled layers (4) top and is provided with reserved changing of the relative positions space (3)；A section Tunnel Second Lining of backbreaking (5) pass through
Grain filled layer (4), is connected on tunnel longitudinal direction with normal reach Tunnel Second Lining (6).
2. one kind according to claim 1 passes through creep faults particle-filled layers tunnel error resilience structure, which is characterized in that institute
State particle-filled layers (4) be can free rolling ceramsite material.
3. one kind according to claim 1 passes through creep faults particle-filled layers tunnel error resilience structure, which is characterized in that institute
It states and backbreaks a section Tunnel Second Lining (5) as prefbricated tunnel lining.
4. one kind according to claim 1 passes through creep faults particle-filled layers tunnel error resilience structure, which is characterized in that institute
It is identical as normal reach Tunnel Second Lining (6) geomery to state a section Tunnel Second Lining (5) of backbreaking.
5. creep faults particle-filled layers tunnel error resilience construction method is passed through as described in any one as described in claims 1 to 3,
Characterized by comprising the following steps:
Step 1: backbreaking according to tunnel contour line (1) of backbreaking to tunnel；
Step 2: applying preliminary bracing (2)；
Step 3: tunnel is backbreak after contour line (1) stabilization, particle-filled layers (4) is arranged in supporting in the early stage (2), supporting in the early stage
(2) changing of the relative positions space (3) are reserved on top；
Step 4: according to the setting structure for a section Tunnel Second Lining (5) of backbreaking, adaptation is dug out in particle-filled layers (4) and is backbreak section
The channel of Tunnel Second Lining (5)；
Step 5: backbreaking a section Tunnel Second Lining (5) for prefbricated tunnel lining being installed, it is made to exist with normal reach Tunnel Second Lining (6)
Tunnel is longitudinally upper smooth connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910710026.8A CN110359954A (en) | 2019-08-02 | 2019-08-02 | One kind passing through creep faults tunnel particle-filled layers error resilience structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910710026.8A CN110359954A (en) | 2019-08-02 | 2019-08-02 | One kind passing through creep faults tunnel particle-filled layers error resilience structure and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110359954A true CN110359954A (en) | 2019-10-22 |
Family
ID=68222144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910710026.8A Pending CN110359954A (en) | 2019-08-02 | 2019-08-02 | One kind passing through creep faults tunnel particle-filled layers error resilience structure and its construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756835A (en) * | 2021-08-05 | 2021-12-07 | 中国科学院武汉岩土力学研究所 | Tunnel anti-fault-breaking structural system |
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