CN208236429U - A kind of new pipe-roof method active well ruggedized construction - Google Patents
A kind of new pipe-roof method active well ruggedized construction Download PDFInfo
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- CN208236429U CN208236429U CN201820554294.6U CN201820554294U CN208236429U CN 208236429 U CN208236429 U CN 208236429U CN 201820554294 U CN201820554294 U CN 201820554294U CN 208236429 U CN208236429 U CN 208236429U
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- pipe
- active well
- supporting ring
- ring beam
- roof method
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Abstract
The utility model discloses a kind of new pipe-roof method active well ruggedized constructions, it is provided with supporting ring beam around the push pipe pipe curtain at tunnel piercing hole, the supporting ring beam includes the arrangement of reinforcement layer of annular orifice pipe nest of tubes and the annular orifice pipe nest of tubes inner side and outer side, the supporting ring beam and the main structure of the active well are integrated by concreting, and are connect by connector with push pipe.The utility model improves the integrated degree of tunnel piercing structure of the window in the active well of new pipe-roof method, keeps hole more firm, and consumed cost and time are less.
Description
Technical field
The utility model relates to new pipe-roof method fields, in particular to the reinforcing of active well in new pipe-roof method, more specifically
For be related to the ruggedized construction at tunnel piercing hole in new pipe-roof method active well.
Background technique
New pipe-roof method is completely new tunneling engineering method, is a kind of improvement to pipe-roof method.The diameter of steel tube of pipe-roof method jacking
Typically small, ready-built structure also only constructs the inside in pipe curtain.In a broad sense, Construction Principle is similar to pipe shed method, and general
Temporary support as construction uses.And new pipe-roof method utilizes the jacking construction of major diameter, diameter, can generally in 1800mm or more
Directly ready-built structure (structure base slab, top plate, wall etc.) is performed in the pipe that pushed up steel pipe is formed is arranged with the phase after construction, from
And all or part of permanent reinforced concrete structure is formed, herein under the supporting of permanent reinforced concrete structure, carry out tunneling knot
Structure earthwork heavy excavation, is finally completed whole underground structures.New pipe-roof method construction only has a few countries to use more at present, and China is new
Pipe-roof method construction is started late, and seldom with amount, and there are many advantages of new pipe-roof method construction, can be good at adapting to high speed development
Process of Urbanization Construction need, therefore the application of new pipe-roof method will be more and more.
Jacking solid matter Large-diameter Steel nest of tubes is needed in new pipe-roof method work progress, pipe curtain is formed, by active well main body knot
Structure and building enclosure cutting, cause main structure stress to weaken, the tunnel piercing hole side wall of active well are easily caused to collapse.
Existing reinforcing technology be pipe curtain construction before, on structural wall design jacking tube curtain position outer ring and
Hole collar tie beam is respectively set in inner ring, is linked together collar tie beam and main structure by the way that anchor bar is arranged in collar tie beam.Then exist
After the completion of pipe curtain internal structure, liner wall construction is set on the outside of structural wall, by welding anchor bar on the outside of pipe curtain steel pipe
Pipe curtain steel pipe and top, side, bottom liner wall are linked together, so that pipe curtain is linked together with main structure, reinforced
Active well side wall.
There are several disadvantages for the ruggedized construction of the prior art.Firstly, hole collar tie beam be by anchor bar additional extremely
On structural wall, rather than it is integrally formed with main structure；Pipe curtain steel pipe is only to be located between inside and outside collar tie beam, and pipe curtain has no with collar tie beam
Direct connection relational；Pipe curtain steel pipe is indirectly connected to main structure by liner wall construction.Therefore, the company of pipe curtain and main structure
It connects and built on the sand.Secondly, liner wall construction consumable material is more, setting and installation operation are time-consuming and laborious, dramatically increase active well and add
Solid cost, operation difficulty and operating time.
Summary of the invention
The utility model provides a kind of new pipe-roof method active well ruggedized construction in view of the foregoing drawbacks, improves tunnel in active well
The soundness at hole is tunneled, and significantly shortens consolidation time.
The utility model relates to the ruggedized constructions of new pipe-roof method active well, set around the push pipe pipe curtain at tunnel piercing hole
It is equipped with supporting ring beam, the supporting ring beam includes: annular orifice pipe nest of tubes, for the ring junction being made of more steel orifice tubes
Structure, for every root hole mouth pipe sleeve outside corresponding push pipe, the internal diameter of orifice tube is greater than the outer diameter of push pipe；Arrangement of reinforcement layer, for along the ring
The steel hoop grid of the inner side and outer side setting of shape orifice tube nest of tubes.The main structure of the supporting ring beam and the active well
It is integrated by concreting, the supporting ring beam is connect by connector with push pipe.Every push pipe is provided at least two institutes
Connector is stated, is separately positioned on inside and outside pipe curtain, the connector can at most be covered with every push pipe and branch adjacent to each other
The interface of support ring beam.The connector includes bolt and T-shaped piece, wherein the bolt is preset in the arrangement of reinforcement layer, the T
Type part one end is welded on the outside of push pipe, and the other end is connect by the bolt with the supporting ring beam.
The T-shaped piece by being welded to form T-type, has screw hole on the transverse direction steel plate by lateral steel plate and longitudinal steel plate,
It is bolted with preset in supporting ring beam, the longitudinal direction steel plate is soldered to the outside of the push pipe.The size of the T-shaped piece needs
It to be determined according to structural stress analysis checking computations.
Preferably, it is connected between the arrangement of reinforcement layer and the orifice tube by multiple L-type steel muscle, the one of the L-type steel muscle
On end is welded on the outside of the orifice tube, the other end is deep into the arrangement of reinforcement layer.The L-type steel muscle can reinforce orifice tube with
The bonding strength of arrangement of reinforcement layer, further increases structural soundness.
Preferably, cement slurry is filled in the gap between the orifice tube and the push pipe, to generate waterproof action, prevented
The moisture and mud at main structure rear ooze out.
The utility model has the following beneficial effects: compared with the ruggedized construction of the prior art, the ruggedized construction of the utility model
By forming supporting ring beam integrated with active well main structure around push pipe pipe curtain, to strengthen the structure at tunnel piercing hole
Intensity.By connecting every push pipe and supporting ring beam with connector, pipe curtain is further consolidated.Thus during reducing constructing tunnel
Disturbance to soil layer above active well main structure rear and pipe curtain, reduces Supporting Structure deformation degree, reduces surface subsidence,
Promote construction quality.In addition, compared with prior art, the connector for aiming at push pipe and supporting ring beam design reduces active well and adds
Gu required cost and time.
Detailed description of the invention
Fig. 1 show the sectional schematic diagram of the new pipe-roof method active well ruggedized construction of the utility model.
Fig. 2 show the connection schematic diagram of push pipe and supporting ring beam.
Fig. 3 show the position view of connector.
Fig. 4 show the structural schematic diagram of T-shaped piece.
In figure, 1. active wells, 2. supporting ring beams, 3. orifice tubes, 4. push pipes, 5. building enclosures, 6. bolts, 7.T type part, 7-
1. lateral steel plate, the longitudinal direction 7-2. steel plate, 8.L steel bar.
Specific embodiment
The technical side of the utility model is described in detail in the utility model in order to better understand with specific example below
Case, but the utility model is not limited thereto.
Embodiment 1
Referring to Fig. 1 to 3, a kind of new pipe-roof method active well ruggedized construction is set around the 4 pipe curtain of push pipe at tunnel piercing hole
It is equipped with supporting ring beam 2, the supporting ring beam 2 includes:
Annular orifice pipe nest of tubes, for the ring structure being made of more steel orifice tubes 3, every 3 sets of orifice tube in phase
It answers outside push pipe 4, the internal diameter of orifice tube 3 is greater than the outer diameter of push pipe 4；
Arrangement of reinforcement layer, for the steel hoop grid being arranged along the inner side and outer side of the annular orifice pipe nest of tubes；
The supporting ring beam 2 and the main structure of the active well 1 are integrated by concreting, the supporting ring beam 2
It is connect by connector with push pipe 4.
Wherein, the outer diameter of push pipe 4 is 2.00m, and the internal diameter of orifice tube 3 is 2.05-2.15m, preferably 2.10m.The ring
The spacing of reinforcing bar in shape reinforcing bar grid is preferably 20cm.The width of supporting ring beam 2 is preferably 3.7m.Supporting ring beam is by push pipe pipe
Curtain is integrated with active well main structure, thus reinforcing pipe curtain structure.
As shown in figure 3, every push pipe 4 is provided at least two connectors, it is separately positioned on inside and outside pipe curtain.
According to the soil pressure size for calculating 4 position of push pipe, it can also arrange more, the size of connector can also be increased, make to bear
Power is bigger.The connector can be covered with the interface of every push pipe 4 Yu supporting ring beam 2 adjacent to each other.The connector includes spiral shell
Bolt 6 and T-shaped piece 7, wherein the bolt 6 is preset in the arrangement of reinforcement layer, and described 7 one end of T-shaped piece is welded on 4 outside of push pipe, separately
One end is connect by the bolt 6 with the supporting ring beam 2.The connector connects every push pipe and supporting ring beam, further
Firm pipe curtain and tunnel portal structure.
As shown in figure 4, the T-shaped piece 7 is by lateral steel plate 7-1 and longitudinal direction steel plate 7-2 by being welded to form T-type, the cross
There is screw hole on steel plate 7-1, connect with bolt 6 preset in supporting ring beam 2, the longitudinal direction steel plate 7-2 is soldered to the top
The outside of pipe 4.The transverse direction steel plate 7-1 is the square steel plate of high 30cm wide 30cm thickness 2cm, and the longitudinal direction steel plate 7-2 is height
The orthogonal steel plate of 30cm wide 30cm thickness 2cm.
The T-shaped piece material is easy to get, low in cost convenient for manufacture.It compared with prior art, can be in every push pipe jacking
Implement connection immediately after the completion, it is not necessary to wait whole pipe curtains that could apply after the completion.The connector can be directed to every push pipe
Stress difference carry out specific configuration, to improve process efficiency, and there is no the concrete curing phase, thus save significantly on cost and
Time.
Preferably, as shown in Fig. 2, being welded with multiple L-type steel muscle 8, institute inside and outside the annular orifice pipe nest of tubes
The one end for stating L-type steel muscle 8 is welded on 3 outside of the orifice tube, and the other end is deep into the arrangement of reinforcement layer, by orifice tube with match
Muscle layer securely connects.
Preferably, cement slurry has been filled in the gap between orifice tube 3 and push pipe 4, so as to generate waterproof action,
The moisture and mud for preventing main structure rear ooze out into active well.
In short, compared with prior art, the present embodiment uses orifice tube and arrangement of reinforcement layer building supporting ring beam, by push pipe pipe curtain
It is integrated with active well main structure, to improve the structural strength of active well tunnel portal wall in new pipe-roof method, reduces and collapse
Risk is obviously improved construction quality.And simple process, material are easy to get, and it is low in cost, it is time-consuming less.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, done any modifications, equivalent replacements, and improvements etc., should be included in this reality within the spirit and principle of the utility model
Within novel protection scope.
Claims (6)
1. a kind of new pipe-roof method active well ruggedized construction, which is characterized in that set around push pipe (4) the pipe curtain at tunnel piercing hole
It is equipped with supporting ring beam (2), the supporting ring beam (2) includes:
Annular orifice pipe nest of tubes, for the ring structure being made of more steel orifice tubes (3), every orifice tube (3) covers in phase
Answer push pipe (4) outside, the internal diameter of the orifice tube (3) is greater than the outer diameter of the push pipe (4)；
Arrangement of reinforcement layer, for the steel hoop grid being arranged along the inner side and outer side of the annular orifice pipe nest of tubes；
The supporting ring beam (2) and the main structure of the active well (1) are integrated by concreting, the supporting ring beam
(2) it is connect by connector with push pipe (4).
2. new pipe-roof method active well ruggedized construction according to claim 1, which is characterized in that every push pipe (4) is provided with
At least two connectors, the connector are separately positioned on inside and outside pipe curtain.
3. new pipe-roof method active well ruggedized construction according to claim 2, which is characterized in that the connector includes bolt
(6) and T-shaped piece (7), wherein the bolt (6) is preset in the arrangement of reinforcement layer, and described T-shaped piece (7) one end is welded on push pipe
(4) outside, the other end are connect by the bolt (6) with the supporting ring beam (2).
4. new pipe-roof method active well ruggedized construction according to claim 3, which is characterized in that the T-shaped piece (7) is by transverse direction
Steel plate (7-1) and longitudinal steel plate (7-2) have screw hole on the transverse direction steel plate (7-1), with bracing ring by being welded to form T-type
Preset bolt (6) connection, the longitudinal direction steel plate (7-2) are soldered to the outside of the push pipe (4) on beam (2).
5. new pipe-roof method active well ruggedized construction according to any one of claim 1 to 4, which is characterized in that described to match
It is connect between muscle layer and the orifice tube (3) by multiple L-type steel muscle (8), one end of the L-type steel muscle (8) is welded on described
On orifice tube (3) outside, the other end is deep into the arrangement of reinforcement layer.
6. new pipe-roof method active well ruggedized construction according to claim 1, which is characterized in that the orifice tube (3) and institute
It states in the gap between push pipe (4) and fills cement slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820554294.6U CN208236429U (en) | 2018-04-18 | 2018-04-18 | A kind of new pipe-roof method active well ruggedized construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820554294.6U CN208236429U (en) | 2018-04-18 | 2018-04-18 | A kind of new pipe-roof method active well ruggedized construction |
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| Publication Number | Publication Date |
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| CN208236429U true CN208236429U (en) | 2018-12-14 |
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| CN201820554294.6U Active CN208236429U (en) | 2018-04-18 | 2018-04-18 | A kind of new pipe-roof method active well ruggedized construction |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343450A (en) * | 2018-04-18 | 2018-07-31 | 中铁十四局集团有限公司 | A kind of new pipe-roof method active well ruggedized construction and reinforcement means |
| CN110439590A (en) * | 2019-08-06 | 2019-11-12 | 中铁十四局集团有限公司 | Method for tunnel construction |
| CN113338947A (en) * | 2021-04-14 | 2021-09-03 | 浙江交工集团股份有限公司 | Sand-flowing-preventing water-gushing working well for water-rich sand layer and construction method thereof |
-
2018
- 2018-04-18 CN CN201820554294.6U patent/CN208236429U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343450A (en) * | 2018-04-18 | 2018-07-31 | 中铁十四局集团有限公司 | A kind of new pipe-roof method active well ruggedized construction and reinforcement means |
| CN108343450B (en) * | 2018-04-18 | 2023-11-03 | 中铁十四局集团有限公司 | Novel pipe curtain method working well reinforcing structure and reinforcing method |
| CN110439590A (en) * | 2019-08-06 | 2019-11-12 | 中铁十四局集团有限公司 | Method for tunnel construction |
| CN113338947A (en) * | 2021-04-14 | 2021-09-03 | 浙江交工集团股份有限公司 | Sand-flowing-preventing water-gushing working well for water-rich sand layer and construction method thereof |
| CN113338947B (en) * | 2021-04-14 | 2024-04-09 | 浙江交工集团股份有限公司 | Water-rich sand layer anti-flowing sand water-surge working well and construction method thereof |
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