CN207267975U - A kind of bed stabilization structure for being used under shield tunnel wear river - Google Patents
A kind of bed stabilization structure for being used under shield tunnel wear river Download PDFInfo
- Publication number
- CN207267975U CN207267975U CN201720780373.4U CN201720780373U CN207267975U CN 207267975 U CN207267975 U CN 207267975U CN 201720780373 U CN201720780373 U CN 201720780373U CN 207267975 U CN207267975 U CN 207267975U
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- CN
- China
- Prior art keywords
- shield tunnel
- river
- cofferdam
- used under
- stabilization structure
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- 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.)
- Expired - Fee Related
Links
- 230000006641 stabilisation Effects 0.000 title claims abstract description 14
- 238000011105 stabilization Methods 0.000 title claims abstract description 14
- 239000004567 concrete Substances 0.000 claims abstract description 15
- 238000005728 strengthening Methods 0.000 claims abstract description 15
- 239000004927 clay Substances 0.000 claims description 6
- 239000011150 reinforced concrete Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000002689 soil Substances 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses a kind of bed stabilization structure for being used under shield tunnel wear river, including the rotary jet strengthening section being arranged on above shield tunnel, the armoured concrete slab being arranged in the rotary jet strengthening section and twice cutout cofferdam, cutout cofferdam is separately positioned on the both sides of the armoured concrete slab described in twice, and running through between the cofferdam that stops described in twice has more perpendicular overflow pipes excessively.The utility model is solved when wearing river under shield tunnel by reinforcing riverbed, and thickness of earth covering is relatively thin above shield tunnel, and geology is rich in underground water below river, and soil quality stabilizing is poor, the larger problem of construction risk such as gush, cave in shield-tunneling construction.And kept river upstream and downstream draining unobstructed by setting up overflow pipe in cofferdam, the construction risk that river construction is worn under shield tunnel is greatly reduced, has ensured the safety and quality of construction.
Description
Technical field
A kind of bed stabilization structure is the utility model is related to, particularly a kind of riverbed for being used under shield tunnel wear river adds
Fixing structure.
Background technology
China's economy developed rapidly in recent years, and urban rail transit construction is unfolded in big and medium-sized cities in succession.Subway Tunnel Construction
Frequently with shield construction, many shield running tunnels wear river under needing.Under when wearing river, thickness of earth covering above shield tunnel
Relatively thin, geology is rich in underground water below river, and soil quality stabilizing is poor, and the construction risk such as gush, cave in shield-tunneling construction is larger.
So the weight difficult point that river is the construction of shield section is worn under shield tunnel.It need to be taken when wearing river under shield tunnel of constructing
Measure, reduces risk, ensures that construction smoothly safely carries out.
The content of the invention
The utility model provides one kind for wearing river under shield tunnel to solve technical problem present in known technology
The bed stabilization structure of stream, the structure can ensure the safety and quality that river construction is worn under shield tunnel.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：One kind is used for shield
The bed stabilization structure in structure tunnel Xia Chuan rivers, including be arranged on rotary jet strengthening section above shield tunnel, be arranged on the rotation
Armoured concrete slab and twice cutout cofferdam in section are reinforced in spray, and cutout cofferdam is separately positioned on the reinforced concrete described in twice
The both sides of native plate, running through between the cofferdam that stops described in twice has more perpendicular overflow pipes excessively.
The width of the rotary jet strengthening section is shield tunnel top and each 2-4m in both sides, and depth is under the concrete slab
Rise to shield tunnel over top 1m on surface.
Multiple high-pressure rotary jet grouting piles, a diameter of 800- of the high-pressure rotary jet grouting pile are equipped with the rotary jet strengthening section
1000mm, the spacing of adjacent two high-pressure rotary jet grouting piles is 600-700mm.
All same levels crossed overflow pipe and be distributed on middle part between the cofferdam that stops described in twice in parallel to each other
Interior, a diameter of 800-1200mm for crossing overflow pipe, adjacent two spacing crossed between overflow pipe are 4-6m.
Built and formed using gunnysack dress clay code in the cutout cofferdam.
The cutout cofferdam is vertically arranged with river, and the both sides gradient in the cutout cofferdam is 1:2-3, top surface width are
1.5-2.5m。
The thickness of the armoured concrete slab is 40-60mm.
The utility model has the advantages and positive effects of：By reinforcing riverbed, solve and wear river under shield tunnel
When, shield tunnel top thickness of earth covering is relatively thin, and geology is rich in underground water below river, and soil quality stabilizing is poor, in shield-tunneling construction
The larger problem of construction risk such as gush, cave in.And river upstream and downstream draining was kept to lead to by setting up overflow pipe in cofferdam
Freely, the construction risk that river construction is worn under shield tunnel is greatly reduced, has ensured the safety and quality of construction.
Brief description of the drawings
Fig. 1 is the plan of the utility model；
Fig. 2 is the elevation of the utility model.
In figure：1st, shield tunnel；2nd, river；3rd, stop cofferdam；4th, overflow pipe is crossed；5th, armoured concrete slab；6th, churning adds
Gu section.
Embodiment
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Attached drawing describes in detail as follows：
Please refer to Fig.1 and Fig. 2, it is a kind of to be used to wear the bed stabilization structure in river under shield tunnel, including it is arranged on shield
The rotary jet strengthening section 6 of the top of tunnel 1, the armoured concrete slab 5 being arranged in the rotary jet strengthening section 6 and twice cutout cofferdam 3,
Cutout cofferdam 3 is separately positioned on the both sides of the armoured concrete slab 5 described in twice, is passed through between the cofferdam 3 that stops described in twice
It is installed with more perpendicular overflow pipes 4 excessively.
In the present embodiment, the width of the rotary jet strengthening section 6 is for the top of shield tunnel 1 and each 2-4m in both sides, depth
To at 1 over top 1m of shield tunnel from 5 lower surface of concrete slab.It is equipped with the rotary jet strengthening section 6 multiple high
Pressure rotary-spraying stake, a diameter of 800-1000mm of the high-pressure rotary jet grouting pile, the spacing of adjacent two high-pressure rotary jet grouting piles is 600-
700mm.All same levels crossed overflow pipe 4 and be distributed on middle part between the cofferdam 3 that stops described in twice in parallel to each other
Interior, a diameter of 800-1200mm for crossing overflow pipe, adjacent two spacing crossed between overflow pipe 4 are 4-6m.It is described
Built and formed using gunnysack dress clay code in cutout cofferdam 3.The cutout cofferdam 3 is vertically arranged with river 2, the cutout cofferdam
The 3 both sides gradient is 1:2-3, top surface width are 1.5-2.5m.The thickness of the armoured concrete slab 5 is 40-60mm.
The construction method of the utility model：
One) in order to block current, first above shield tunnel rotary jet strengthening section 6 both sides construction cutout cofferdam 3, method
For：First accumulated with gunnysack dress clay, then refill clay and tamp.
Two) overcurrent water pipe 4 is set up among cutout cofferdam 3, keeps river upstream and downstream draining unobstructed.
Three) after the completion of the construction in cofferdam 3 to be stopped, with water pump drain cutout cofferdam 3 in river water, cleaning bed-silt and
Debris, carries out the backfill and compacting of clay in the range of rotary jet strengthening, the construction of armoured concrete slab 5 is then carried out, in coagulation
Jet grouting pile construction hole is reserved on native plate 5.
Four) jet grouting pile driving machine is set up on concrete slab 5, carries out the construction of rotary churning pile, to form rotary jet strengthening section 6.
Although the preferred embodiment of the utility model is described above in conjunction with attached drawing, the utility model is not
Above-mentioned embodiment is confined to, above-mentioned embodiment is only schematical, is not restricted, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under the enlightenment of the utility model
In the case of scope, many forms can also be made, these are belonged within the scope of protection of the utility model.
Claims (7)
1. a kind of bed stabilization structure for being used under shield tunnel wear river, it is characterised in that including being arranged on shield tunnel
Rotary jet strengthening section, the armoured concrete slab that is arranged in the rotary jet strengthening section and the twice cutout cofferdam of side, break described in twice
Stream cofferdam is separately positioned on the both sides of the armoured concrete slab, and running through between the cofferdam that stops described in twice has more to hang down with it
Straight crosses overflow pipe.
2. the bed stabilization structure according to claim 1 for being used under shield tunnel wear river, it is characterised in that the rotation
The width that section is reinforced in spray is shield tunnel top and each 2-4m in both sides, and depth is to shield tunnel from the concrete slab lower surface
At road over top 1m.
3. the bed stabilization structure according to claim 2 for being used under shield tunnel wear river, it is characterised in that described
Rotary jet strengthening section is equipped with multiple high-pressure rotary jet grouting piles, a diameter of 800-1000mm of the high-pressure rotary jet grouting pile, described in adjacent two
The spacing of high-pressure rotary jet grouting pile is 600-700mm.
4. the bed stabilization structure according to claim 1 for being used under shield tunnel wear river, it is characterised in that Suo Yousuo
Stated overflow pipe be distributed in parallel to each other described in twice stop cofferdam between middle part same level in, it is described cross overflow pipe
A diameter of 800-1200mm, it is adjacent two it is described cross overflow pipes between spacing be 4-6m.
5. the bed stabilization structure according to claim 1 for being used under shield tunnel wear river, it is characterised in that described disconnected
Built and formed using gunnysack dress clay code in stream cofferdam.
6. the bed stabilization structure according to claim 5 for being used under shield tunnel wear river, it is characterised in that described disconnected
Stream cofferdam is vertically arranged with river, and the both sides gradient in the cutout cofferdam is 1:2-3, top surface width are 1.5-2.5m.
7. the bed stabilization structure according to claim 1 for being used under shield tunnel wear river, it is characterised in that the steel
The thickness of reinforced concrete plate is 40-60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780373.4U CN207267975U (en) | 2017-06-30 | 2017-06-30 | A kind of bed stabilization structure for being used under shield tunnel wear river |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780373.4U CN207267975U (en) | 2017-06-30 | 2017-06-30 | A kind of bed stabilization structure for being used under shield tunnel wear river |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207267975U true CN207267975U (en) | 2018-04-24 |
Family
ID=61959907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720780373.4U Expired - Fee Related CN207267975U (en) | 2017-06-30 | 2017-06-30 | A kind of bed stabilization structure for being used under shield tunnel wear river |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207267975U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026022A (en) * | 2018-08-20 | 2018-12-18 | 中铁十二局集团有限公司 | It is a kind of for floating the ruggedized construction and reinforcement means in pebble layer shield crossing river |
| CN109184699A (en) * | 2018-08-20 | 2019-01-11 | 中铁六局集团有限公司 | Existing river construction is worn under open trench tunnel |
| CN109653223A (en) * | 2018-11-21 | 2019-04-19 | 中铁十二局集团有限公司 | River anti-floating weighting board construction method |
| CN110374609A (en) * | 2019-06-27 | 2019-10-25 | 中铁十六局集团地铁工程有限公司 | A kind of ultra-shallow earth-covered shield lakebed builds island driving method |
-
2017
- 2017-06-30 CN CN201720780373.4U patent/CN207267975U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026022A (en) * | 2018-08-20 | 2018-12-18 | 中铁十二局集团有限公司 | It is a kind of for floating the ruggedized construction and reinforcement means in pebble layer shield crossing river |
| CN109184699A (en) * | 2018-08-20 | 2019-01-11 | 中铁六局集团有限公司 | Existing river construction is worn under open trench tunnel |
| CN109184699B (en) * | 2018-08-20 | 2020-07-10 | 中铁六局集团太原铁路建设有限公司 | Construction method for passing existing river channel under open trench tunnel |
| CN109653223A (en) * | 2018-11-21 | 2019-04-19 | 中铁十二局集团有限公司 | River anti-floating weighting board construction method |
| CN110374609A (en) * | 2019-06-27 | 2019-10-25 | 中铁十六局集团地铁工程有限公司 | A kind of ultra-shallow earth-covered shield lakebed builds island driving method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180424 |