CN206298896U - A kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system - Google Patents
A kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system Download PDFInfo
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- CN206298896U CN206298896U CN201621327472.9U CN201621327472U CN206298896U CN 206298896 U CN206298896 U CN 206298896U CN 201621327472 U CN201621327472 U CN 201621327472U CN 206298896 U CN206298896 U CN 206298896U
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Abstract
The utility model is related to a kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system.Influenceed by surrounding enviroment, during Tunnel Passing structures, may be limited with surrounding enviroment by site condition, the isolation pile of conventional cast-in-situ bored pile pattern without implementation condition, such as when net level length is not enough between tunnel and structures, or when wearing structures under tunnel.The utility model is in existing buildings（Basement）Set steel pipe isolation pile in a row between Under-cross tunnel, the tunnel arch following certain distance in bottom is goed deep into its bottom, and steel pipe isolation pile is oblique or vertically squeezes into, and top is linked to be entirety by stake top Guan Liang；Between steel pipe isolation pile and structures basement, then set mini-valve tube in a row, the following certain distance of structures basement is goed deep into its bottom, is tracked slip casting.The utility model has that floor space is small, construction is flexibly and the characteristics of adapt to all kinds of environmental requirements, can meet it is various in the case of the requirement of structures consolidation process.
Description
Technical field
The utility model belongs to Tunnel Engineering technical field, and in particular to a kind of Tunnel Passing structures steel pipe isolation pile ground
Layer reinforcement system.
Background technology
For the railway traffic engineering of current cities in China, with the continuous encryption of subway gauze, follow-up subway line
When road is built, influenceed by built subway line and surrounding enviroment, in line alignment and paving mode, spatial relationship and structural type
The requirement of the aspects such as formula and construction method and engineering measure is stricter.When Tunnel Passing existing buildings, by space away from
From the influence with underground utilities, the isolation pile of conventional cast-in-situ bored pile pattern may be without implementation condition.
The content of the invention
The purpose of this utility model is to provide a kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system, in complexity
Acted on the tracking grouting of mini-valve tube by the isolation effect of steel-pipe pile under environment, during being capable of achieving Tunnel Passing structures, structure
Thing foundation bearing capacity is built to be substantially unaffected.
The technical scheme that the utility model is used for：
A kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system, it is characterised in that：
Set steel pipe isolation pile in a row between existing buildings basement and Under-cross tunnel, steel pipe isolation pile is oblique or vertical
Directly squeeze into, steel pipe isolation pile top is linked to be entirety by stake top Guan Liang.
Mini-valve tube is set in a row between steel pipe isolation pile and structures basement.
Steel pipe isolation pile is formed by the framework of steel reinforcement in steel pipe and steel pipe by concrete perfusion, and framework of steel reinforcement includes joint bar
With the stirrup of annular configuration.
Stake top Guan Liang is stretched at steel pipe isolation pile top, and steel pipe isolation pile stake top position is provided with the U-shaped reinforcing bar of outward opening,
Steel pipe is firmly welded with U-shaped reinforcing bar；
Perpendicular Guan Liang reinforcing bar is welded with U-shaped reinforcing bar.
At least 2m below tunnel arch bottom is goed deep into steel pipe isolation pile bottom, stake top Guan Liang top surface and ground at the top of steel pipe isolation pile
Table is concordant；
Steel pipe isolation pile and horizontal plane angle >=30 °；
The longitudinal pitch of steel pipe isolation pile is not less than 0.5m.
At least 3m below structures basement bottom board is goed deep into mini-valve tube bottom, and top is concordant with earth's surface；
Mini-valve tube and horizontal plane angle >=30 °；
The longitudinal pitch of mini-valve tube is not less than 0.5m.
The utility model has advantages below：
The utility model sets steel-pipe pile, mini-valve tube in earth's surface, and steel reinforcement cage, pressure injection microdilatancy water are inserted into steel-pipe pile
Mud, pour Guan Liang in stake top, form steel pipe isolation pile reinforcement system, the steel being related to, cement mortar and steel-pipe pile set institute
Plant equipment etc. is conventional material（Equipment）, its corresponding size is general type, is easy to processing and manufacturing；And steel-pipe pile,
Mini-valve tube length can be adjusted according to tunnel with structures buried depth, steel-pipe pile, mini-valve tube horizontal layout can be according to buried pipe
The relative position relation of line distribution situation, tunnel and structures is adjusted, and steel-pipe pile rigidity can be according to the micro- swollen of internal filling
Swollen concrete grade, steel reinforcement cage and steel pipe stiffness by itself information summary determine, steel-pipe pile, the quantity of mini-valve tube, setting angle can
According to being adjusted the need for being reinforced structures.By the blanketing effect of steel pipe isolation pile, the tracking grouting effect of mini-valve tube,
The safety of surrounding enviroment during can ensure that Tunnel Passing structures, reaches that can to meet surrounding enviroment harsh small with floor space,
The requirement of stratum consolidation can be reached again, and during conventional cast-in-situ bored pile can be avoided to implement, noise is big, it is big to take up an area, while being also possible to
Need to carry out underground utilities to move the adverse effect for changing.With economic benefit and social benefit higher, in urban track traffic, iron
Have wide practical use in the engineerings such as road, highway.
Brief description of the drawings
Fig. 1 is that steel pipe isolation pile reinforces schematic diagram.
Fig. 2 is joint bar drawing in steel pipe isolation pile.
Fig. 3 is the short muscle welding schematic diagram of steel pipe top.
In figure, 1- existing buildings, 2- structures basements, 3- tunnels, 4- steel pipe isolation piles, 5- mini-valve tubes, 6- stake tops
Guan Liang, 7- Guan Liang reinforcing bars, 8-U steel bars, 9- joint bars, 10- stirrups.
Specific embodiment
The utility model is described in detail with reference to specific embodiment.
The Tunnel Passing structures steel pipe isolation pile stratum consolidation system that the utility model is related to, in existing buildings 1
Structures basement 2 and under set steel pipe isolation pile 4 in a row between the tunnel 3 worn, steel pipe isolation pile 4 is oblique or vertically squeezes into,
The top of steel pipe isolation pile 4 is linked to be entirety by horizontal stake top Guan Liang 6.Steel pipe isolation pile 4 has certain level with existing buildings 1
Distance, with ensure reinforcement measure implement during existing buildings 1 safety.Set between steel pipe isolation pile 4 and structures basement 2
Put the mini-valve tube 5 being arranged in rows.
Existing buildings 1 may include various type of foundations, structural shape, and structures basement 2 is general by being examined within 3 layers
Consider；Tunnel 3 can be similar round or shape of a hoof Tunneling by mining method, circular shield tunnel, or rectangle open trench tunnel.
Steel pipe isolation pile 4 is formed by the framework of steel reinforcement in steel pipe and steel pipe by concrete perfusion, and framework of steel reinforcement includes inserting
The stirrup 10 of muscle 9 and annular configuration.Stretch into the certain distance of stake top Guan Liang 6, the stake top of steel pipe isolation pile 4 in the top of steel pipe isolation pile 4
Position is provided with the U-shaped reinforcing bar 8 of outward opening, and steel pipe is welded to connect with U-shaped reinforcing bar 8；It is welded with U-shaped reinforcing bar 8 perpendicular
Guan Liang reinforcing bar 7.The following certain distance in the bottom of tunnel 3 is goed deep into the bottom of steel pipe isolation pile 4（Not less than 2m）, to ensure isolation effect
Really, 4 top Guan Liang of steel pipe isolation pile, 6 top surfaces are concordant with ground；Steel pipe isolation pile 4 and horizontal plane angle >=30 °；Steel pipe isolation pile
4 longitudinal pitch is not less than 0.5m.
The following certain distance of base plate of structures basement 2 is goed deep into the bottom of mini-valve tube 5（Not less than 3m）, top is put down with ground
Together；Mini-valve tube 5 and horizontal plane angle >=30 °；The longitudinal pitch of mini-valve tube 5 is not less than 0.5m.
The construction method of above-mentioned Tunnel Passing structures steel pipe isolation pile stratum consolidation system, comprises the following steps：
Step one：Setting-out is measured between existing buildings 1 and Under-cross tunnel 3, according to design coordinate, steel pipe is marked
Isolation pile 4 is with mini-valve tube 5 in earth's surface respective coordinates point position；
Step 2：Mounting and positioning device, according to design angle, using roof-bolter or other rig pore-formings, drilling diameter is omited
More than the diameter of steel pipe isolation pile 3, to ensure pore-forming effect, need strictly to control rig using pipe-following drilling technique, in pore forming process
Angle, it is ensured that crept into along design direction high accuracy；
Step 3：In pore forming process, steel pipe is put into according to depth of pore forming in time, every section of length of steel pipe is considered by 3~5m,
Coupling is firmly connected using screw thread；After pore-forming terminates, by the space between steel pipe isolation pile 3 and pore-forming hole wall, using cement
Mortar backfill is closely knit；
Step 4：Before treating that steel pipe is placed into specified location on request, the joint bar 9 in steel pipe and stirrup 10 are welded on request
Overall framework of steel reinforcement is connected into, then framework of steel reinforcement is put into steel pipe, slightly expanded concrete is finally irrigated on request, formation has
The steel pipe isolation pile 4 of certain bending rigidity；
Step 5：After steel pipe isolation pile 4 is all implemented in place, stake top is excavated, U-shaped reinforcing bar 8 is welded at stake top position,
Subsequent colligation Guan Liang reinforcing bar 6, and U-shaped reinforcing bar 8 is welded on request with Guan Liang reinforcing bar 6, subsequent casting concrete, form Guan Liang 6；
Step 6：Roof-bolter or other rig pore-formings, drilling diameter are used to be slightly larger than again according to the setting-out coordinate of mini-valve tube 5
Mini-valve tube diameter, needs strictly to control rig angle in pore forming process, it is ensured that crept into along design direction high accuracy；
Step 7：After mini-valve tube pore-forming terminates, pre-buried mini-valve tube 5 on request, the bottom of mini-valve tube 5 is deeply constructed by protection
3m below the base plate of thing basement 2；
Step 8：During Tunnel Passing structures, according to monitoring situation, the tracking grouting of mini-valve tube 5 is carried out in time, by tunnel
The stratum settlement that excavation causes effectively is made up in the influence of the bottom of structures 1 by sleeve valve barrel grouting.
Steel pipe isolation pile with the structures safeguard measure that mini-valve tube is combined have flexible and changeable, strong adaptability, safety can
By the features such as.Steel-pipe pile plan-position can be adjusted as needed with angle is set, and this is essential characteristic of the present utility model,
Steel reinforcement cage and slightly expanded concrete that stake top Guan Liang, steel-pipe pile are inserted into are to ensure that the basic measures of its overall isolation effect, then
Plus the tracking grouting effect of mini-valve tube, it can be ensured that the Environmental security during Tunnel Passing structures.
Content of the present utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and any equivalent conversion taken technical solutions of the utility model, are claim institute of the present utility model
Cover.
Claims (6)
1. a kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system, it is characterised in that：
In existing buildings（1）Basement and Under-cross tunnel（3）Between set steel pipe isolation pile in a row（4）, steel pipe isolation pile（4）
It is oblique or vertically squeeze into, steel pipe isolation pile（4）Top passes through stake top Guan Liang（6）It is linked to be entirety.
2. a kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system according to claim 1, it is characterised in that：
Steel pipe isolation pile（4）With structures basement（2）Between set mini-valve tube in a row（5）.
3. a kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system according to claim 1, it is characterised in that：
Steel pipe isolation pile（4）Formed by concrete perfusion by the framework of steel reinforcement in steel pipe and steel pipe, framework of steel reinforcement includes joint bar
（9）With the stirrup of annular configuration（10）.
4. a kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system according to claim 1, it is characterised in that：
Steel pipe isolation pile（4）Stretch into stake top Guan Liang in top（6）, steel pipe isolation pile（4）Stake top position is provided with the U-shaped of outward opening
Reinforcing bar（8）, steel pipe and U-shaped reinforcing bar（8）Firmly welding；
U-shaped reinforcing bar（8）On be welded with perpendicular Guan Liang reinforcing bar（7）.
5. a kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system according to claim 1, it is characterised in that：
Steel pipe isolation pile（4）Tunnel is goed deep into bottom（3）At least 2m, steel pipe isolation pile below arch bottom（4）The stake top Guan Liang at top（6）
Top surface is concordant with earth's surface；
Steel pipe isolation pile（4）With horizontal plane angle >=30 °；
Steel pipe isolation pile（4）Longitudinal pitch be not less than 0.5m.
6. a kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system according to claim 2, it is characterised in that：
Mini-valve tube（5）Structures basement is goed deep into bottom（2）At least 3m below base plate, top is concordant with earth's surface；
Mini-valve tube（5）With horizontal plane angle >=30 °；
Mini-valve tube（5）Longitudinal pitch be not less than 0.5m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621327472.9U CN206298896U (en) | 2016-12-06 | 2016-12-06 | A kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system |
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| CN201621327472.9U CN206298896U (en) | 2016-12-06 | 2016-12-06 | A kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979659A (en) * | 2018-07-04 | 2018-12-11 | 中铁第勘察设计院集团有限公司 | The ruggedized construction and method of structures are worn under weak soil rich water large cross-section tunnel group |
| CN110219666A (en) * | 2019-06-10 | 2019-09-10 | 中交隧道工程局有限公司 | Method for tunnel construction and loess tunnel |
-
2016
- 2016-12-06 CN CN201621327472.9U patent/CN206298896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979659A (en) * | 2018-07-04 | 2018-12-11 | 中铁第勘察设计院集团有限公司 | The ruggedized construction and method of structures are worn under weak soil rich water large cross-section tunnel group |
| CN110219666A (en) * | 2019-06-10 | 2019-09-10 | 中交隧道工程局有限公司 | Method for tunnel construction and loess tunnel |
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