CN208106458U - A kind of support construction of ultra-shallow earth-covered rectangle big cross section - Google Patents
A kind of support construction of ultra-shallow earth-covered rectangle big cross section Download PDFInfo
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- CN208106458U CN208106458U CN201820355220.XU CN201820355220U CN208106458U CN 208106458 U CN208106458 U CN 208106458U CN 201820355220 U CN201820355220 U CN 201820355220U CN 208106458 U CN208106458 U CN 208106458U
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 230000010412 perfusion Effects 0.000 claims abstract description 14
- 238000009412 basement excavation Methods 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 23
- 238000010586 diagram Methods 0.000 description 15
- 239000002689 soil Substances 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a kind of support constructions of ultra-shallow earth-covered rectangle big cross section, belong to project dug underground technical field, including the multiple vertical rectangular tube curtain structures being generally aligned in the same plane and vertical spacing is arranged, multiple vertical rectangular tube curtain structure passes through bolt respectively and connect at least one layer of turbulent flow in horizontal rectangular duct curtain structure, and rectangular tube curtain structure is to be made of rectangular steel pipe and equal concrete perfusion in rectangular tube curtain structure vertically.The pipe curtain structure that the utility model is formed by using rectangular steel pipe, compared with the pipe curtain structure of round steel pipe composition, the mutual contact area of single steel pipe is increased, and then reduces influence of the bearing capacity to single steel pipe jacking deviation, the safety on ground when ensure that excavation.
Description
Technical field
The utility model relates to project dug underground technical field, in particular to a kind of support knot of ultra-shallow earth-covered rectangle big cross section
Structure.
Background technique
With the fast development of urbanization process, urban ground traffic congestion situation is at the world for restricting urban development
Property problem.In order to cope with the traffic above-ground of city increasingly congestion, ground lower rail is greatly developed in more and more cities and area one after another
Road traffic.
Since in bustling location, traffic above-ground cannot be interrupted, generally use shallow embedding dark when building tunneling subway station
Digging method usually first will carry out pre-reinforcement or pre support to bottom before excavation, and the self-stable ability in hole week after being excavated with raising guarantees
The safety of excavation.Pre support system is broadly divided into stratum consolidation slip casting, freezing process, Shed-pipe Advanced Support, pipe-roof method etc..Wherein pipe curtain
The advantages that method can almost form any tunnel cross-section shape because its section is flexible, and geology is adaptable has become big disconnected
A kind of common construction method of face bored tunnel.
But current pipe-roof method uses the Pipe curtain fore-poling system being made of round steel pipe, since round steel pipe forms
Pipe curtain bearing capacity it is larger by single steel pipe jacking deviation effects, large area be easy to cause surface subsidence when excavating, or even influences
Road environment, traffic and pipeline.
Utility model content
The purpose of this utility model is to provide a kind of support constructions of ultra-shallow earth-covered rectangle big cross section, are applied with improving underground
The safety and accuracy of work.
In order to achieve the above object, the utility model uses a kind of support construction of ultra-shallow earth-covered rectangle big cross section, including position
In multiple vertical rectangular tube curtain structures that same plane and vertical spacing are arranged, multiple vertical rectangular tube curtain structure passes through respectively
Bolt connect at least one layer of turbulent flow in horizontal rectangular duct curtain structure, and rectangular tube curtain structure is to be made of rectangular steel pipe and rectangular tube curtain vertically
Equal concrete perfusion in structure.
Preferably, the multiple vertical rectangular tube curtain structure includes successively being spaced the first vertical rectangular tube curtain structure, second
Vertical rectangular tube curtain structure and the vertical rectangular tube curtain structure of third, the first vertical rectangular tube curtain structure, the second vertical rectangular tube curtain
Structure and the vertical rectangular tube curtain structure of third pass through bolt respectively and connect with upper and lower two layers of turbulent flow in horizontal rectangular duct curtain structure, upper water
The equal concrete perfusion of flat rectangular pipe curtain structure.
Preferably, the upper layer turbulent flow in horizontal rectangular duct curtain structure and the first vertical rectangular tube curtain structure, second are connected to
The upper end of vertical rectangular tube curtain structure and third vertical pipe curtain structure.
Preferably, the first vertical rectangular tube curtain structure, the second vertical rectangular tube curtain structure, the vertical rectangular tube of third
Rectangle in four rectangular box that curtain structure is divided by upper and lower two layers of turbulent flow in horizontal rectangular duct curtain structure along pipe curtain wall body arrangement is rigid
Ring frame.
Preferably, the perpendicular of both sides is arranged in the described first vertical rectangular tube curtain structure and the vertical rectangular tube curtain structure of third
The lower end of straight rectangular tube curtain structure is connect with buried pipe curtain.
Preferably, steel plate is connected between two arm of angle of the rectangle rigid ring circle angle.
Compared with prior art, there are following technical effects for the utility model：The utility model is by using rectangular steel pipe
The pipe curtain structure of composition increases the mutual contact area of single steel pipe compared with the pipe curtain structure of round steel pipe composition,
And then reduce influence of the bearing capacity to single steel pipe jacking deviation, the safety on ground when ensure that excavation.
Detailed description of the invention
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail：
Fig. 1 is a kind of structural schematic diagram of the support construction of ultra-shallow earth-covered rectangle big cross section；
Fig. 2 is the rectangular tube curtain structure schematic diagram for being marked with concrete；
Fig. 3 is the schematic diagram of working procedure one；
Fig. 4 is the schematic diagram of working procedure two；
Fig. 5 is the schematic diagram of working procedure three；
Fig. 6 is the schematic diagram of working procedure four；
Fig. 7 is the schematic diagram of working procedure five；
Fig. 8 is the schematic diagram of working procedure six；
Fig. 9 is the schematic diagram of working procedure seven；
Figure 10 is the schematic diagram of working procedure eight；
Figure 11 is the schematic diagram of working procedure nine；
Figure 12 is the schematic diagram of working procedure ten；
Figure 13 is the schematic diagram of working procedure 11；
Figure 14 is the schematic diagram of working procedure 12；
Figure 15 is the schematic diagram of working procedure 13.
Specific embodiment
In order to further explain the feature of the utility model, please refer to detailed description below in connection with the utility model with
Attached drawing.Institute's attached drawing is only for reference and purposes of discussion, is not used to limit the protection scope of the utility model.
As shown in Figure 1, present embodiment discloses a kind of support constructions of ultra-shallow earth-covered rectangle big cross section, including it is located at same
Plane and vertical spacing arrangement multiple vertical rectangular tube curtain structures, multiple vertical rectangular tube curtain structure pass through respectively bolt with
At least one layer of turbulent flow in horizontal rectangular duct curtain structure connection, rectangular tube curtain structure are made of rectangular steel pipe and in vertical rectangular tube curtain structure
Equal concrete perfusion.
Wherein, multiple vertical rectangular tube curtain structures in the present embodiment include at least three, and each vertical rectangular tube curtain
What is be spaced between structure is equidistant, and the lower end of multiple vertical rectangular tube curtain structure is connect with buried pipe curtain structure, upper end is logical
It crosses lateral connection bolt to connect at least one layer turbulent flow in horizontal rectangular duct curtain structure, in the application, which is mainly
It constructs to be formed using rectangular pipe jacking machine.And in multiple vertical rectangular tube curtain structures and the turbulent flow in horizontal rectangular duct curtain structure of top layer
Concrete perfusion.
It should be noted that the present embodiment removes middle layer horizontal tube curtain not concrete perfusion in entire pipe curtain system,
Remaining horizontal and vertical duct curtain concrete perfusion.Pipe curtain structure can be increased substantially after horizontal and vertical duct curtain concrete perfusion
Bearing capacity, and middle layer horizontal tube curtain reduces the excavation height of the soil body, does not need primarily to form small pilot drive
Concrete perfusion improves its bearing capacity, and the non-concrete perfusion of middle layer horizontal tube curtain, avoids and generates to bottom part ring frame
Excessive pressure ensure that the stability of entire big cross section support construction.
By using the Pipe curtain fore-poling system of rectangular steel pipe composition and the pipe curtain being made of round steel pipe in the present embodiment
Pre support system is compared, and is face contact between single rectangular steel pipe in the Pipe curtain fore-poling system of rectangular steel pipe composition, and round
It is point contact between single round just extension in the Pipe curtain fore-poling system of steel pipe composition.Therefore, the pipe formed using rectangular steel pipe
In curtain pre support system, the contact area between single steel pipe is larger, reduces single steel pipe jacking deviation to Pipe curtain fore-poling
The influence of system bearing capacity, the stability of big cross section when ensure that excavation, when large area being avoided to excavate caused by surface subsidence.
As further preferred scheme, as shown in Figure 1 to Figure 2, three vertical rectangular tube curtain knots are chosen in the present embodiment
Structure is successively spaced the first vertical rectangular tube curtain structure 10, the second vertical rectangular tube curtain structure 11 and the vertical rectangular tube curtain knot of third
Structure 12, the first vertical rectangular tube curtain structure 10, the second vertical rectangular tube curtain structure 11 and the vertical rectangular tube curtain structure 12 of third divide
Not Tong Guo cross bolts 40 connect with upper layer turbulent flow in horizontal rectangular duct curtain structure 20, lower layer's turbulent flow in horizontal rectangular duct curtain structure 21, first is vertical
Rectangular tube curtain structure 10, the second vertical rectangular tube curtain structure 11, the vertical rectangular tube curtain structure 12 of third and upper layer horizontal rectangular
The equal concrete perfusion of pipe curtain structure 20.In practical construction process, when being excavated by the pipe curtain structure that rectangular steel pipe is formed for station
Pre support system is provided.
It should be noted that lower layer's turbulent flow in horizontal rectangular duct curtain structure 21 in the present embodiment includes two sections of turbulent flow in horizontal rectangular duct curtain knots
Structure, one section of two sections of faces pass through cross bolts and the first vertical rectangular tube curtain structure 10, the second vertical rectangular tube curtain structure respectively
The connection of 11 pipe shafts, another section of two sections of faces pass through cross bolts and the second vertical rectangular tube curtain structure 11 and the vertical square of third respectively
The pipe shaft of shape pipe curtain structure 12 connects.
As further preferred scheme, the height of multiple vertical rectangular tube curtain structures in the vertical direction in the present embodiment
Identical, the length of two layers of turbulent flow in horizontal rectangular duct curtain structure in the horizontal direction is identical.Lower layer's turbulent flow in horizontal rectangular duct curtain structure position level in
The lower section of upper layer turbulent flow in horizontal rectangular duct curtain, and upper layer turbulent flow in horizontal rectangular duct curtain structure by lateral connection bolt respectively with three vertical squares
The upper end of shape pipe curtain structure connects, and the lower end of the vertical rectangular tube curtain structure on both sides is arranged in three vertical rectangular tube curtain structures
It is connect with buried pipe curtain.
It should be noted that in the big cross section support construction, the vertical rectangular tube curtain structure and lower tube curtain of the left and right sides
Connection, center vertical rectangular tube curtain do not need setting lower tube curtain, because intermediate vertical rectangular tube curtain is temporary structure, construct
It needs to remove in journey, and left and right sides pipe curtain number can be used as permanent structure, will not remove after work.In addition, intermediate vertical
Pipe curtain is primarily subjected to vertical force, and two sides vertical duct curtain needs to bear top vertical force and horizontal earth pressure, in arranged on left and right sides
Vertical rectangular tube curtain lower end setting lower tube curtain can make it have more high stability, guarantee construction safety.
As further preferred scheme, three vertical rectangular tube curtain structures are by two layers of turbulent flow in horizontal rectangular duct curtain in the present embodiment
For segmentation of structures at four rectangular box, each rectangular box is interior to arrange the rigid ring frame of rectangle along pipe curtain wall body.
Pipe curtain fore-poling system combination ring frame body provided in this embodiment system avoids and uses round steel pipe push pipe at this stage
When forming the disadvantages of junction shearing resistance of pipe curtain bring is insufficient, while improving by the steel loop frame of erection station lining construction
Safety.The surface subsidence in digging process is considerably reduced, it can be achieved that large area excavation, improves equipment driving and slag tap
Efficiency.And then improve construction efficiency, shorten construction period, reduce construction cost.
As further preferred scheme, as shown in Figure 1, being connected between two arm of angle of rectangle steel loop circle angle in the present embodiment
There is steel plate, two arms of angle at the steel plate and ring circle angle form triangle, play the role of reinforcing rectangle steel loop frame stability.
Specifically, in practical applications, it can be all connected with steel plate in four frame angles of rectangle steel loop frame, it can also be several wherein
Junction steel plate in a frame angle.
As shown in Fig. 3-Figure 15, it is using the process that the big cross section support construction in the present embodiment is constructed：
（1）It is successively constructed rectangle steel push pipe from centre to both sides using rectangular pipe jacking machine, forms first layer turbulent flow in horizontal rectangular duct
Curtain, and be bolted, which uses M27 bolt；
（2）It is successively constructed rectangle steel push pipe using rectangular pipe jacking machine from top to bottom, forms vertical rectangular tube curtain, and carry out spiral shell
It tethers and connects；
（3）It is successively constructed rectangle steel push pipe from centre to both sides using rectangular pipe jacking machine, forms second layer turbulent flow in horizontal rectangular duct
Curtain, and be bolted；
（4）In addition to second layer horizontal tube curtain, pipe curtain perfusion C30 auto dense concrete is formed by other；
（5）Bottom rectangle ring frame in side is installed, it is longitudinal to excavate the soil body, one of straight-flanked ring frame is set up until perforation every 6m；
（6）Top rectangular ring frame in side is installed, it is longitudinal to excavate the soil body, one of straight-flanked ring frame is set up until perforation every 6m；
（7）Gradually remove the position ring frame, plate in construction side bottom plate, bottom girder, bottom side wall and part；
（8）The segment section pipe curtain of the position ring frame and second layer turbulent flow in horizontal rectangular duct curtain is gradually removed, side remaining side of constructing
Wall and top plate；
（9）Bottom rectangle ring frame in the other side is installed, it is longitudinal to excavate the soil body, one of straight-flanked ring frame is set up every 6m until passing through
It is logical；
（10）Top rectangular ring frame in the other side is installed, it is longitudinal to excavate the soil body, one of straight-flanked ring frame is set up every 6m until passing through
It is logical；
（11）Gradually remove the position ring frame, plate in construction other side bottom plate, bottom girder, bottom side wall and part；
（12）Another part section pipe curtain of the position ring frame and remaining second layer turbulent flow in horizontal rectangular duct curtain is gradually removed, construction is another
Side residue side wall and top plate；
（13）Vertical rectangular tube curtain structure is successively removed from top to bottom, applies remaining top plate, middle plate and bottom plate.
It should be noted that the result as above-mentioned steps are constructed is as shown in figure 15, the present embodiment is by combining rectangle
Pipe curtain structure and steel loop mount structure are constructed, and road pavement traffic and neighbouring existing pipeline influence smaller, and effective solution is super
The big problem of shallow earthing rectangle big cross section metro station construction difficulty.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of support construction of ultra-shallow earth-covered rectangle big cross section, which is characterized in that including being generally aligned in the same plane and vertical spacing
Multiple vertical rectangular tube curtain structures of arrangement, multiple vertical rectangular tube curtain structure pass through bolt and at least one layer of horizontal square respectively
The connection of shape pipe curtain structure, rectangular tube curtain structure are to be made of rectangular steel pipe and equal concrete perfusion in vertical rectangular tube curtain structure.
2. the support construction of ultra-shallow earth-covered rectangle big cross section as described in claim 1, which is characterized in that the multiple vertical square
Shape pipe curtain structure includes successively being spaced the first vertical rectangular tube curtain structure, the second vertical rectangular tube curtain structure and the vertical rectangle of third
Pipe curtain structure, the first vertical rectangular tube curtain structure, the second vertical rectangular tube curtain structure and the vertical rectangular tube curtain structure difference of third
It is connect by bolt with upper and lower two layers of turbulent flow in horizontal rectangular duct curtain structure, the equal concrete perfusion of upper layer turbulent flow in horizontal rectangular duct curtain structure.
3. the support construction of ultra-shallow earth-covered rectangle big cross section as claimed in claim 2, which is characterized in that the horizontal square in upper layer
Shape pipe curtain structure and it is connected to the first vertical rectangular tube curtain structure, the second vertical rectangular tube curtain structure and third vertical pipe
The upper end of curtain structure.
4. the support construction of ultra-shallow earth-covered rectangle big cross section as claimed in claim 2, which is characterized in that described first is vertical
Rectangular tube curtain structure, the second vertical rectangular tube curtain structure, the vertical rectangular tube curtain structure of third are by upper and lower two layers of turbulent flow in horizontal rectangular duct curtain
Along the rigid ring frame of rectangle of pipe curtain wall body arrangement in four rectangular box that structure is divided into.
5. the support construction of ultra-shallow earth-covered rectangle big cross section as claimed in claim 2, which is characterized in that the first vertical square
The lower end of the vertical rectangular tube curtain structure on both sides is arranged in shape pipe curtain structure and the vertical rectangular tube curtain structure of third and underground
The connection of pipe curtain.
6. the support construction of ultra-shallow earth-covered rectangle big cross section as claimed in claim 4, which is characterized in that the rigid ring frame of rectangle
Steel plate is connected between two arm of angle of frame angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355220.XU CN208106458U (en) | 2018-03-15 | 2018-03-15 | A kind of support construction of ultra-shallow earth-covered rectangle big cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355220.XU CN208106458U (en) | 2018-03-15 | 2018-03-15 | A kind of support construction of ultra-shallow earth-covered rectangle big cross section |
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| Publication Number | Publication Date |
|---|---|
| CN208106458U true CN208106458U (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820355220.XU Active CN208106458U (en) | 2018-03-15 | 2018-03-15 | A kind of support construction of ultra-shallow earth-covered rectangle big cross section |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593881A (en) * | 2019-09-17 | 2019-12-20 | 中铁第六勘察设计院集团有限公司 | Method for realizing large-section underground space excavation by using small-section combined jacking pipe |
| CN111485893A (en) * | 2019-10-10 | 2020-08-04 | 上海申通地铁集团有限公司 | Earth excavation construction method for pipe curtain channel with oversized cross section in saturated soft soil area |
-
2018
- 2018-03-15 CN CN201820355220.XU patent/CN208106458U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593881A (en) * | 2019-09-17 | 2019-12-20 | 中铁第六勘察设计院集团有限公司 | Method for realizing large-section underground space excavation by using small-section combined jacking pipe |
| CN111485893A (en) * | 2019-10-10 | 2020-08-04 | 上海申通地铁集团有限公司 | Earth excavation construction method for pipe curtain channel with oversized cross section in saturated soft soil area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Wangjiang Road in Baohe District of Hefei city of Anhui Province, No. 96 230023 Co-patentee after: THE FIFITH CONSTRUCTION LTD.OF CHINA TIESIJU CIVIL ENGINEERING Group Patentee after: CHINA TIESIJU CIVIL ENGINEERING GROUP Co.,Ltd. Address before: 230023 technical center of China Railway four Bureau, No. 96 Wangjiang East Road, Anhui, 618, Hefei Co-patentee before: THE FIFITH CONSTRUCTION LTD.OF CHINA TIESIJU CIVIL ENGINEERING Group Patentee before: CHINA TIESIJU CIVIL ENGINEERING GROUP Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |