CN207863959U - A kind of shield section centre closed steel bushing that misses the stop of ventilating shaft - Google Patents
A kind of shield section centre closed steel bushing that misses the stop of ventilating shaft Download PDFInfo
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- CN207863959U CN207863959U CN201820216496.XU CN201820216496U CN207863959U CN 207863959 U CN207863959 U CN 207863959U CN 201820216496 U CN201820216496 U CN 201820216496U CN 207863959 U CN207863959 U CN 207863959U
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- manhole
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Abstract
The utility model belongs to subway shield tunnel construction field, more particularly to the closed steel bushing that misses the stop of ventilating shaft among a kind of shield section, including cylinder, cylinder body bottom is provided with bearing, cylinder includes identical 2 transition rings of diameter and 4 standard rings, standard ring is arranged in the middle part of cylinder, transition rings are arranged in the both sides of standard ring, it is provided with square hole, round hole and inlet at the top of standard ring, it is provided with pressure relief vent in the middle part of standard ring, barrel outer surface is integrally provided with horizontal rib and circumferential gusset, and cylinder outer surface of upper is welded with steel bushing lifting lug.The utility model wide adaptability, it is simple in structure, be convenient to mount and dismount, short construction period and can be recycled, the utility model configuration simultaneously is reasonable, technologically advanced, can effectively meet the small airtight space such as intermediate ventilating shaft misses the stop, improve construction efficiency, construction cost has been saved, construction risk is reduced.
Description
Technical field
The utility model belongs to subway shield tunnel construction field, and in particular to a kind of shield section centre closed steel that misses the stop of ventilating shaft
Sleeve.
Background technology
As Shield Construction Technique is increasingly mature, shield method in the municipal works such as city underground and highway, submerged tunnel and
It is used widely in the engineerings such as some intercity light rails and railway, how to avoid the risk of shield-tunneling construction, especially major accident,
It is issues that need special attention in construction.Shield accident statistics in recent years, shield major accident mostly occur originate, the arrival stage,
It is easier to gush the major accidents such as blowout water especially in weak rich water saturated silty sand stratum, it is total in some small scale structures
Reduction originates, receive number, and intermediate ventilating shaft is a kind of effective method for reducing risk using closed miss the stop, but is at present
It only there is no a kind of device to miss the stop for intermediate ventilating shaft.
It discloses a kind of slurry shield application No. is the utility model of 201620328785.X and passes through section artesian water layer of sand
The native case of ventilating shaft closing, it is proposed that closed theory of missing the stop eliminates ventilating shaft and receives and originate process, prevented slurry shield in pressure-bearing
Water sand layer ventilating shaft receives and originates safety accident, simple for process, risk is controllable, but still remains backfill and clear up quantities
Greatly, the deficiencies of reserved opening closing and recovery time are long, later stage negative ring dismounting program is cumbersome and the time is long, risk is big.
Application No. is 201620535559.9 and 201710533673.7 utility models to disclose one kind for shield machine
The device and a kind of auxiliary device being used for shield launching and reception of closed origin and arrival, greatly reduce shield launching
And receive risk, but not closed to intermediate ventilating shaft miss the stop carries out targeted design, and the equal structure of the device is cumbersome, structure and
Size is not suitable for the smaller intermediate ventilating shaft in space, and installation and use are inconvenient.
Invention content
The utility model in order to solve problem above, provides a kind of for reduction small scale structures shield launching reception wind
The closed steel bushing that misses the stop of intermediate ventilating shaft of danger.
The utility model is achieved by the following technical solution：A kind of shield section centre closed steel bushing that misses the stop of ventilating shaft
Cylinder, including cylinder, cylinder body bottom are provided with bearing, and cylinder includes identical 2 transition rings of diameter and 4 standard rings, standard ring
It is arranged in the middle part of cylinder, transition rings are arranged is provided with square hole, round hole and injection at the top of the both sides of standard ring, standard ring
Mouthful, pressure relief vent is provided in the middle part of standard ring, barrel outer surface is integrally provided with horizontal rib and circumferential gusset, cylinder upper outer
Face is welded with steel bushing lifting lug.
Cylinder is rolled by 20mm steel plates, and a ring is formed by upper and lower two semi-rings, and transverse flange is arranged in two halves interannular,
It is connected by screw bolts, cylinder includes identical 2 transition rings of diameter and 4 standard rings, and standard ring is arranged in the middle part of cylinder, transition
Ring is arranged in the both sides of standard ring, and transition rings side is equipped with the annular flange for being connected between steel bushing, transition rings lower part both sides
With the section center of circle in being provided with the manhole to come in and go out for personnel at 40 ° of angles, steel bushing be completed after in no flange side transition rings and
Arc panel is welded on the inside of pre-buried portal ring at gap, forms enclosure space, balances Water And Earth Pressures inside and outside ventilating shaft.
The a diameter of 600mm of manhole, includes the manhole doughnut-shaped steel plate being connect with cylinder and manhole flange disk, on manhole flange disk
The equidistant bolt hole for offering 20 a diameter of 30mm, ring flange is weldingly fixed on manhole doughnut-shaped steel plate top, and is set between the two
8 pieces of manhole stiffeners are equipped with, cover plate for manhole is provided on manhole flange disk, installation lifting lug is welded on cover plate for manhole.
Standard ring both sides are equipped with the annular flange connected for steel bushing, per ring half interannular connection type and transition up and down
Ring is identical, the standard ring being connect with transition rings be arranged above be useful for portal abolish dregs cleaning and steel bushing backfill it is rectangular
Hole, and this standard ring top center 30 ° of relief holes for being provided with pressure off-load when being removed for steel bushing to the right, round hole setting
At the top of intermediate two ring standard rings.
Rectangular pore size is 800mm × 1100mm, includes the square hole rectangular steel plates being connect with cylinder, square hole ring flange
With rectangular blind patch, it is provided with square hole stiffener between square hole rectangular steel plates and square hole ring flange, on square hole ring flange
Being equally spaced has the square hole flange bolt hole of 26 a diameter of 30mm, rectangular blind patch thickness 30mm and size and square hole flange
Dish external diameter is identical, and bolt hole corresponding with square hole flange bolt hole is distributed on rectangular blind patch, is welded on rectangular blind patch
There is lifting lifting lug.
The internal diameter of a diameter of 450mm of pressure relief vent, round hole are 720mm, and the two structure is identical as manhole.
Bearing is made of four blocks of 20mm thickness bearing webs and bearing gusset normal thereto and base-plate, bearing web and
The top of bearing gusset is welded with cylinder extrados, and the bottom of bearing web and bearing gusset is solid with base-plate welding respectively
Fixed, adjacent two web is one group of composition box-shaped supporting leg, and the end of box-shaped supporting leg and medium position are respectively welded thickness 50mm, wide
The iron clad of 400mm is spent, it is thickness 50mm that the bottom of box-shaped supporting leg, which is welded with size, and sectional dimension is the parallels of 450 × 450mm,
The locating piece for preventing steel bushing from rotating also is welded in cylinder body bottom both sides.
The utility model is other than having the advantages that traditional steel bushing assembly convenience, can be recycled also directed to intermediate ventilating shaft etc.
Small space structure carries out targeted design, simplifies structure, optimization reserved opening, refinement, is more applicable for the small-sized knot such as ventilating shaft
Structure shield is closed to miss the stop.The utility model wide adaptability, it is simple in structure, be convenient to mount and dismount, short construction period and can be recycled,
The utility model configuration simultaneously is reasonable, technologically advanced, can effectively meet the small airtight space such as intermediate ventilating shaft misses the stop, and improves and applies
Work efficiency rate, has saved construction cost, reduces construction risk.
Description of the drawings
Fig. 1 is the utility model splicing structure schematic diagram；
Fig. 2 is the structural representation side view of the utility model transition rings；
Fig. 3 is the structural representation front view of Fig. 2；
Fig. 4 is manhole structure's schematic diagram of the utility model；
Fig. 5 is the utility model standard ring structure schematic diagram；
Fig. 6 is the structural representation side view of Fig. 5；
Fig. 7 is the utility model square hole structural representation front view；
Fig. 8 is the structural representation side view of Fig. 7 square holes；
Fig. 9 is the bearing structure illustration of the utility model；
Figure 10 is the utility model bearing web drawing.
In figure：1- cylinders, 2- manholes, 2a- manhole doughnut-shaped steel plates, 2b- manhole flange disks, 2c- manhole stiffened panels, 2d- people
Hole bolt hole, 3- annular flanges, 4- steel bushing lifting lugs, 5- horizontal ribs, 6- transverse flanges, 7- circumferential direction gussets, 8- square holes,
8a- square hole rectangular steel plates, 8b- square hole ring flanges, 8c- square hole stiffeners, 8d- square hole flange bolt holes, 9- pressure releases
Hole, 10- inlets, 11- round holes, 12- bearings, 12a- bearing webs, 12b- bearing gussets, 12c- base-plates, 12d- pads
Iron, 12e- iron clads, 13- locating pieces.
Specific implementation mode
The utility model is described further in conjunction with Fig. 1~Figure 10, a kind of shield section centre closed steel that misses the stop of ventilating shaft
Sleeve, including 1 cylinder of cylinder, 1 bottom are provided with bearing 12, and cylinder 1 includes identical 2 transition rings of diameter and 4 standard rings,
Standard ring is arranged in the middle part of cylinder, and transition rings are arranged is provided with square hole 8, round hole at the top of the both sides of standard ring, standard ring
11 and inlet 10, pressure relief vent 9 is provided in the middle part of standard ring, and 1 outer surface of cylinder is integrally provided with horizontal rib 5 and circumferential gusset
7,1 outer surface of upper of cylinder is welded with steel bushing lifting lug 4.
The utility model steel bushing is that the transition rings at logical standard ring and standard ring both ends are composed, standard ring and group cyclization
Between connection be flanged joint, it is contemplated that the installation requirements of steel bushing cylinder 1 respectively resolve into cylinder 1 along center line
Lower two hemizonids are equally attached using transverse flange 6.
Wherein, cylinder 1 is rolled by 20mm steel plates, forms a ring by upper and lower two semi-rings, the setting of two halves interannular is horizontal
It to flange 6, is connected by screw bolts, which shares 2 transition rings and 4 standard ring compositions, the outer horizontal rib 5 of cylinder and ring
Latticed gusset is formed to gusset 7.Transition rings side is equipped with annular flange 3, for the connection between steel bushing, transition rings lower part edge
Manhole 2 is set at the drift angle of 40 ° of center both sides, is passed in and out with for construction personnel, a diameter of 600mm of manhole 2, by connecting with cylinder 1
Manhole doughnut-shaped steel plate 2a, manhole flange disk 2b and the cover plate for manhole composition connect, the outer diameter of manhole flange disk 2b are 840mm, except with
Manhole doughnut-shaped steel plate 2a welding is outer, using 8 pieces of manhole stiffened panel 2c, be equally spaced above manhole flange disk 2b 20 it is a diameter of
The manhole bolt hole 2d of 30mm, manhole cover plate thickness are 20mm, and size is identical as manhole flange disk 2b outer diameters, are divided above cover plate for manhole
It is furnished with manhole bolt hole 2d corresponding with manhole flange disk 2b, installation lifting lug is welded on cover plate for manhole, cover plate for manhole can be convenient for
Installation.Steel bushing welds arc panel on the inside of transition rings and the pre-buried portal ring after being completed at gap, forms enclosure space,
Balance Water And Earth Pressures inside and outside ventilating shaft.
Standard ring both sides are equipped with annular flange 3, and per ring, half interannular connection type is identical as transition rings up and down, with transition rings
The standard ring of connection is arranged above square hole 8, abolishes dregs cleaning for portal and steel bushing backfill, top center are to the right
30 ° of setting relief holes 9, pressure release when being removed for steel bushing, two ring standard ring top setting round hole 11 of centre are used for steel bushing
Backfill, standard ring top are respectively provided with inlet 10, mortar injection when for that can not be backfilled at the top of sleeve.8 headroom of square hole is
800mm × 1100mm is made of the square hole rectangular steel plates 8a, square hole ring flange 8b and the rectangular blind patch that are connect with cylinder 1,
Between square hole ring flange 8b and square hole rectangular steel plates 8a be arranged square hole stiffener 8c, above equidistantly distributed 26 it is a diameter of
The square hole flange bolt hole 8d of 30mm, rectangular blind patch thickness 30mm, size is identical as the outer diameter of square hole ring flange 8b, rectangular
Flange bolt hole corresponding with square hole ring flange 8b is distributed with above blind patch, three rich shape are provided on rectangular blind patch
Gusset, the high 10mm of gusset, length is identical as 8 internal diameter of square hole, and lifting lifting lug is welded on rectangular blind patch, facilitates rectangular port lid
The installation of plate.The internal diameter of relief hole 9 is 450mm, and the internal diameter of round hole 11 is 720mm, and structure type is identical as manhole 2.Note
Entrance 10 is made of steel pipe, ring flange and cover board, and steel pipe bottom is welded on the top of standard ring, and steel pipe top is fixed with flange
Disk, the bolt hole of 4 a diameter of 19mm of equidistantly distributed is to fixed injection pipe on ring flange.
Bearing web 12a, with bearing web 12a vertical bearing gusset 12b, Yi Jizhi of the bearing 12 by four pieces of 20mm thickness
Seat bottom plate 12c compositions, bearing web 12a are welded with the bearing tops gusset 12b and 1 extrados of cylinder, lower part and base-plate 12c
Welding, two neighboring bearing web 12a are one group, collectively constitute box-shaped supporting leg, the end and middle part of box-shaped supporting leg are respectively welded
Thickness is 50mm, the iron clad 12e of width 400mm, and the parallels 12d of 50 × 450 × 450mm is welded in the bottom of box-shaped supporting leg, to
Reinforce the stress intensity of bearing 12；Steel bushing two bottom sides weld locating piece 13, when steel bushing connect for positioning and can
It effectively prevent the rotation of steel bushing.In addition, being welded with steel bushing lifting lug 4 on the utility model cylinder 1,2 are connect per boxing before assembling
Pin inner supports, for preventing steel bushing from deforming in hoisting process.
Embodiment：
The closed steel bushing intermediate ventilating shaft between the Line 2 Metro generation ice formation of Harbin that misses the stop of ventilating shaft is closed among shield section
In missing the stop, the right line length 2911m in the section, left line length 2987m, locally there is silty clay folder on place stratum based on medium-fine sand layer
Layer；Intermediate ventilating shaft is closer away from river surface（About 90 meters）, water is abundant, head is about 22 meters high, and lateral Water And Earth Pressures are big, shield launching with
Receiving pole easily causes leak, forms piping, is easily connected to Song Hua River, intractability is very big；Section ventilating shaft is in preserved egg rivers
On bed, stratum horizontal slice characteristic is apparent, there is silty clay interlayer, easily forms water passage, and rotary jet strengthening and is frozen in
It is susceptible under river channels and reinforces blind area and defect, shield receives and to originate risk larger.It is used at ventilating shaft among alive ice
Diameter 6800mm, long 12500mm steel bushings are closed misses the stop, and ventilating shaft is connected to and considers that shield is received and originated, and it is smaller that cost increases good fortune,
But it greatly reduces ventilating shaft reception and originates risk, and steel bushing can be used for the main roads Shi Mao station shield and receive and be used in turn, and have
The cost of having made thinner of effect, reduces risk.
Construction risk can be effectively reduced using the utility model, shortens short construction period, raising construction efficiency, had larger
Promotional value.
Claims (7)
1. the closed steel bushing that misses the stop of ventilating shaft among a kind of shield section, including cylinder（1）, it is characterised in that：Cylinder（1）Bottom is set
It is equipped with bearing（12）, cylinder（1）Including identical 2 transition rings of diameter and 4 standard rings, standard ring is arranged in the middle part of cylinder,
Transition rings are arranged is provided with square hole at the top of the both sides of standard ring, standard ring（8）, round hole（11）And inlet（10）, mark
It is provided with pressure relief vent in the middle part of lead ring（9）, cylinder（1）Outer surface is integrally provided with horizontal rib（5）With circumferential gusset（7）, cylinder
（1）Outer surface of upper is welded with steel bushing lifting lug（4）.
2. the closed steel bushing that misses the stop of ventilating shaft among a kind of shield section according to claim 1, it is characterised in that：Cylinder
（1）It is rolled by 20mm steel plates, a ring is formed by upper and lower two semi-rings, transverse flange is arranged in two halves interannular（6）, using spiral shell
It tethers and connects, transition rings side is equipped with the annular flange for being connected between steel bushing（3）, transition rings lower part both sides are in the section center of circle
It is provided with the manhole to come in and go out for personnel at 40 ° of angles（2）, steel bushing be completed after in no flange side transition rings and pre-buried portal ring
Arc panel is welded at the gap of inside, forms enclosure space, balances Water And Earth Pressures inside and outside ventilating shaft.
3. the closed steel bushing that misses the stop of ventilating shaft among a kind of shield section according to claim 2, it is characterised in that：Manhole
（2）A diameter of 600mm, including with cylinder（1）The manhole doughnut-shaped steel plate of connection（2a）With manhole flange disk（2b）, manhole flange disk
（2b）On equidistantly offer the bolt hole of 20 a diameter of 30mm（2d）, ring flange（2b）It is weldingly fixed on manhole doughnut-shaped steel plate
（2a）Top, and 8 pieces of manhole stiffeners are provided between the two（2c）, manhole flange disk（2b）On be provided with cover plate for manhole, manhole
Installation lifting lug is welded on cover board.
4. the closed steel bushing that misses the stop of ventilating shaft among a kind of shield section according to claim 2, it is characterised in that：Standard ring
Both sides are equipped with the annular flange connected for steel bushing（3）, per ring, half interannular connection type is identical as transition rings up and down, with mistake
The standard ring for crossing ring connection is arranged above the square hole for being useful for that portal abolishes dregs cleaning and steel bushing backfills（8）, and this
Standard ring top center 30 ° of relief holes for being provided with pressure off-load when being removed for steel bushing to the right（9）, round hole（11）Setting
At the top of intermediate two ring standard rings.
5. the closed steel bushing that misses the stop of ventilating shaft among a kind of shield section according to claim 4, it is characterised in that：Square hole
（8）Size be 800mm × 1100mm, including with cylinder（1）The square hole rectangular steel plates of connection（8a）, square hole ring flange（8b）
With rectangular blind patch, square hole rectangular steel plates（8a）With square hole ring flange（8b）Between be provided with square hole stiffener（8c）, side
Shape hole ring flange（8b）On the square hole flange bolt hole of 26 a diameter of 30mm is equidistantly distributed with（8d）, rectangular blind patch thickness
30mm and size and square hole ring flange（8b）Outer diameter is identical, is distributed on rectangular blind patch and square hole flange bolt hole（8d）
Corresponding bolt hole is welded with lifting lifting lug on rectangular blind patch.
6. the closed steel bushing that misses the stop of ventilating shaft among a kind of shield section according to claim 4, it is characterised in that：Pressure relief vent
（9）A diameter of 450mm, round hole（11）Internal diameter be 720mm, the two structure is and manhole（2）It is identical.
7. the closed steel bushing that misses the stop of ventilating shaft among a kind of shield section according to claim 1, it is characterised in that：Bearing
（12）By four blocks of 20mm thickness bearing webs（12a）With bearing gusset normal thereto（12b）And base-plate（12c）Composition, branch
Seat web（12a）With bearing gusset（12b）Top and cylinder（1）Extrados welds, bearing web（12a）With bearing gusset
（12b）Bottom respectively with base-plate（12c）It is welded and fixed, adjacent two web（12a）For one group of composition box-shaped supporting leg, box-shaped
The end of supporting leg and medium position are respectively welded thickness 50mm, the iron clad of width 400mm（12e）, the bottom weldering of box-shaped supporting leg
It is thickness 50mm to be connected to size, and sectional dimension is the parallels of 450 × 450mm（12d）, in cylinder（1）Two bottom sides are also welded solid
Surely there is the locating piece for preventing steel bushing from rotating（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820216496.XU CN207863959U (en) | 2018-02-07 | 2018-02-07 | A kind of shield section centre closed steel bushing that misses the stop of ventilating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820216496.XU CN207863959U (en) | 2018-02-07 | 2018-02-07 | A kind of shield section centre closed steel bushing that misses the stop of ventilating shaft |
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| Publication Number | Publication Date |
|---|---|
| CN207863959U true CN207863959U (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820216496.XU Active CN207863959U (en) | 2018-02-07 | 2018-02-07 | A kind of shield section centre closed steel bushing that misses the stop of ventilating shaft |
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| CN (1) | CN207863959U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307001A (en) * | 2019-08-09 | 2019-10-08 | 文杰 | A kind of steel construction casing of non-excavating construction |
| CN111535823A (en) * | 2020-06-15 | 2020-08-14 | 中铁二局集团有限公司 | Shield construction method for pipe gallery working well |
-
2018
- 2018-02-07 CN CN201820216496.XU patent/CN207863959U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307001A (en) * | 2019-08-09 | 2019-10-08 | 文杰 | A kind of steel construction casing of non-excavating construction |
| CN111535823A (en) * | 2020-06-15 | 2020-08-14 | 中铁二局集团有限公司 | Shield construction method for pipe gallery working well |
| CN111535823B (en) * | 2020-06-15 | 2022-03-01 | 中铁二局集团有限公司 | Shield construction method for pipe gallery working well |
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