CN202001061U - Rapid transit railway tunnel vault loess gully protective construction - Google Patents
Rapid transit railway tunnel vault loess gully protective construction Download PDFInfo
- Publication number
- CN202001061U CN202001061U CN201120129960XU CN201120129960U CN202001061U CN 202001061 U CN202001061 U CN 202001061U CN 201120129960X U CN201120129960X U CN 201120129960XU CN 201120129960 U CN201120129960 U CN 201120129960U CN 202001061 U CN202001061 U CN 202001061U
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- loess
- tunnel
- construction
- coombe
- rigidity
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Abstract
A rapid transit railway tunnel vault loess gully protective construction is capable of effectively preventing loess from being washed out so as to protect the safety of a tunnel body structure below a gully, and comprises the tunnel body structure (10). Rigidity bite piles (20) are respectively arranged at the two sides of the tunnel body structure (10), the lower ends of the rigidity bite piles (20) extend into a round basement gravel soil layer, and the upper ends of the rigidity bite piles (20) are connected with a reinforced concrete open channel (21) to form an integral structure.
Description
Technical field
The utility model relates to the high-speed railway tunnel, and particularly a kind of high-speed railway tunnel vault loess coombe protective construction is applicable to that shallow embedding loess tunnel vault coombe, coombe bottom are positioned at the protection of the loess coombe of tunnel vault.
Background technology
Build railway tunnel work in the loess area, because the situation that the tunnel passes from the coombe below inevitably can appear in the topography and landform character that the distinctive coombe of loess is extremely grown.Because loess very easily is subjected to water to wash away the erosion incision, processing does not with great difficulty cause the tunnel vault to expose, and ditch oozes under water then, has influence on the safety of tunnel structure.For the high-speed railway tunnel, seem more important.
Traditional management measure generally is first at tunnel vault certain limit backfill cement-soil, the tunnel upper coombe is changed dose admittedly, carries out tunnel excavation then.The advantage of this processing method is easy construction, and therefore similar engineering in the past adopts more; Shortcoming is when face of land water environment degradation or when the water yield was big, the cement-soil of backfill was washed away seriously, and the cement-soil upstream forms easily that sapping, downstream are easily counter draws, and causes potential safety hazard to construction of tunnel.For the high-speed railway tunnel, requiring has higher safety assurance, should adopt safe more reliable treatment measures.
The utility model content
Technical problem to be solved in the utility model provides a kind of high-speed railway tunnel vault loess coombe protective construction, can prevent effectively that loess from washing away, thus the safety of tunnel, protection coombe below body construction.
The technical scheme that its technical problem that solves the utility model adopts is as follows:
High-speed railway of the present utility model tunnel vault loess coombe protective construction, comprise the tunnel body construction, it is characterized in that: the both sides of described tunnel body construction are respectively arranged with the rigidity interlock stake that substrate circle gravel soil layer is stretched in its lower end, and the top and the steel concrete open channel of each rigidity interlock stake connect into overall structure.
The beneficial effects of the utility model are, can effectively protect the safety of tunnel, coombe below body construction, prevent that loess from washing away, and need not renovate on a large scale coombe, and engineering quantity is little.And adopt simple device to make that the interlock pile driving construction is simple in loess area.
Description of drawings
This manual comprises following two width of cloth accompanying drawings:
Fig. 1 is the profile of the utility model high-speed railway tunnel vault loess coombe protective construction;
Fig. 2 is the cross-sectional view of interlock stake in the utility model high-speed railway tunnel vault loess.
Component shown in the figure, toponym and pairing mark: tunnel body construction 10, rigidity interlock stake 20, reinforced concrete pile 21, plain concrete pile 22, steel concrete open channel 21.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
With reference to Fig. 1, high-speed railway tunnel vault loess coombe protective construction, comprise tunnel body construction 10, be respectively arranged with its lower end in the both sides of tunnel body construction 10 and stretch into the rigidity interlock stake 20 of substrate circle gravel soil layer, the top and the steel concrete open channel 21 of each rigidity interlock stake 20 connect into overall structure.The safety of tunnel, coombe below body construction can be effectively protected in rigidity interlock stake 20, prevents that loess from washing away.
With reference to Fig. 1, generally, described rigidity interlock stake 20 two rows that respectively are horizontally arranged at interval in tunnel body construction 10 both sides.With reference to Fig. 2, described rigidity interlock stake 20 is made of the plain concrete pile 22 of horizontal equi-spaced apart setting and the reinforced concrete pile 21 that is snapped between adjacent two plain concrete piles 22.
Embodiment:
Wear the large-scale coombe in a face of land under the tunnel, the Zheng Xi high ferro Hanguguan Pass, because after even speedway is built suddenly, changed original surface water runoff conditions, strengthened the water yield that flows into coombe and water erosion, souring to coombe, freeway toll station and living area effluent discharge have aggravated this adverse effect, directly threaten coombe below safety for tunnel engineering, and then long term will cause the tunneling environment in the collapsible loess to worsen, and jeopardize operation security.Be tunnel safety during assurance construction and the operation, must renovate coombe and coombe below tunnel trunk country rock.
Adopt the rigidity interlock stake 20 of diameter 100cm, 20 fens plain concrete piles 22 of rigidity interlock stake and reinforced concrete pile 21, adjacent interlock stake interlock amount 0.2m, sequence of construction is, elder generation's construction plain concrete pile 22, reinforced concrete pile 21 construction after, form occlusion structure by cutting plain concrete pile 22 part concrete.Should strict control construction error, particularly vertical direction in the interlock pile driving construction, guarantee the interlock effect, and control 22 initial setting times of plain concrete pile well.
Prevent sapping at rigidity interlock stake 20 downstream fill block stone throwings.
Establish the thick steel concrete open channel of 0.5m 21 in order to draining in rigidity interlock stake 20, pave starting point and terminal point vertical skirt all is set, steel concrete open channel 21 canals are established deformation joint one every 10m, stitch wide 1～2cm, deformation joint is established waterstop and bituminous wood filament plate, and one deck EVA splash guard is laid in the open channel bottom.
The utlity model has safety good, can protect effectively that top, loess tunnel hole coombe is washed away by water, engineering quantity is little and the characteristics of short construction period.As finish long 2024 meters interlock stake, and performing in construction under the prerequisite of adequate preparation, the construction period only is 30 days, and can guarantee that high-speed railway passenger normally passes through in the construction period tunnel.So can avoid interference effectively, help giving full play to the transport benefits of existing railway to railway operation.
Some principles of the above the utility model high-speed railway tunnel vault loess coombe protective construction that just explains through diagrams, be not be the utility model to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (3)
1. high-speed railway tunnel vault loess coombe protective construction, comprise tunnel body construction (10), it is characterized in that: the both sides of described tunnel body construction (10) are respectively arranged with the rigidity interlock stake (20) that substrate circle gravel soil layer is stretched in its lower end, and the top of each rigidity interlock stake (20) and steel concrete open channel (21) connect into overall structure.
2. high-speed railway as claimed in claim 1 tunnel vault loess coombe protective construction is characterized in that: described rigidity interlock stake (20) two rows that respectively are horizontally arranged at interval in tunnel body construction (10) both sides.
3. high-speed railway as claimed in claim 1 tunnel vault loess coombe protective construction is characterized in that: described rigidity interlock stake (20) is made of the plain concrete pile (22) of horizontal equi-spaced apart setting and the reinforced concrete pile (21) that is snapped between adjacent two plain concrete piles (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120129960XU CN202001061U (en) | 2011-04-28 | 2011-04-28 | Rapid transit railway tunnel vault loess gully protective construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120129960XU CN202001061U (en) | 2011-04-28 | 2011-04-28 | Rapid transit railway tunnel vault loess gully protective construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001061U true CN202001061U (en) | 2011-10-05 |
Family
ID=44703806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120129960XU Expired - Lifetime CN202001061U (en) | 2011-04-28 | 2011-04-28 | Rapid transit railway tunnel vault loess gully protective construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001061U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334451A (en) * | 2013-07-10 | 2013-10-02 | 中铁第四勘察设计院集团有限公司 | Underneath-passing channel formed between high-speed rail piers through secant pile walls and method thereof |
| CN105649000A (en) * | 2016-01-13 | 2016-06-08 | 大连市市政设计研究院有限责任公司 | Back pressure backfilling shallow-buried excavation construction method for tunnel undercrossing gully |
-
2011
- 2011-04-28 CN CN201120129960XU patent/CN202001061U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334451A (en) * | 2013-07-10 | 2013-10-02 | 中铁第四勘察设计院集团有限公司 | Underneath-passing channel formed between high-speed rail piers through secant pile walls and method thereof |
| CN105649000A (en) * | 2016-01-13 | 2016-06-08 | 大连市市政设计研究院有限责任公司 | Back pressure backfilling shallow-buried excavation construction method for tunnel undercrossing gully |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |
|
| CX01 | Expiry of patent term |