CN212803267U - Steel negative ring pipe structure for shield construction - Google Patents
Steel negative ring pipe structure for shield construction Download PDFInfo
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- CN212803267U CN212803267U CN202021887894.8U CN202021887894U CN212803267U CN 212803267 U CN212803267 U CN 212803267U CN 202021887894 U CN202021887894 U CN 202021887894U CN 212803267 U CN212803267 U CN 212803267U
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Abstract
A steel negative ring pipe structure for shield construction is formed by splicing four same steel negative ring pipe structure units; the steel negative ring pipe structure unit comprises an arc-shaped pipe piece, a first arc-shaped plate, a second arc-shaped plate, a connecting plate and an inner support; the vertical tangent plane of the arc-shaped duct piece is arc-shaped; the first arc-shaped plate is connected to the front side edge of the arc-shaped pipe piece; the second arc-shaped plate is connected to the rear side edge of the arc-shaped pipe piece; the connecting plates are connected to two ends of the arc-shaped duct piece; the outer side of the connecting plate is connected with a first rubber pad; a group of inner supports are arranged between the first arc-shaped plate and the second arc-shaped plate at intervals; the number and the positions of the inner supports correspond to those of the shield tunneling machine propelling jacks; two ends of the inner support are respectively connected with the first arc-shaped plate and the second arc-shaped plate; and adjacent steel negative ring pipe structural units are connected through a connecting plate. The utility model provides a traditional prefabricated negative loop pipe piece of reinforced concrete easily damage, can the turnover poor, deal with the expense height and demolish the technical problem who wastes time and energy.
Description
Technical Field
The utility model belongs to the technical field of the shield constructs the construction, especially a steel burden ring canal structure that shield structure construction used.
Background
The shield machine is the most advanced ultra-large special equipment for tunnel excavation at present, is high-tech construction equipment for realizing one-step excavation and hole forming of excavation, unearthing, supporting and the like, and is widely applied to tunnel engineering of urban rail transit, railways, highways, municipal administration, hydropower and the like. At present, during the interval construction of urban rail transit engineering, a shield construction method is mostly adopted for construction, and a negative ring pipe piece for shield starting construction is generally a prefabricated reinforced concrete pipe piece.
The prior art has the following disadvantages: firstly, the prefabricated reinforced concrete negative ring pipe piece is easy to damage and poor in turnover; secondly, the reinforced concrete negative ring duct piece connected with the first ring reinforced concrete duct piece and the waste prefabricated reinforced concrete negative ring duct piece are high in treatment cost; thirdly, the dismantling of the prefabricated reinforced concrete negative ring pipe piece is time-consuming and labor-consuming. The utility model aims at providing a shield constructs construction with steel negative ring canal piece application method, but solve prefabricated negative ring canal piece of reinforced concrete and easily damage, can the turnover poor, prefabricated negative ring canal piece of reinforced concrete and deal with the expense height, demolish the problem that waste time, hard.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a circular roofing steel truss structure, but solve traditional prefabricated negative loop pipe piece of reinforced concrete easy damage, can the turnover poor, deal with the expense height and demolish the technical problem who wastes time and energy.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
A steel negative ring pipe structure for shield construction is formed by splicing four same steel negative ring pipe structure units; the steel negative ring pipe structure unit comprises an arc-shaped pipe piece, a first arc-shaped plate, a second arc-shaped plate, a connecting plate and an inner support; the vertical tangent plane of the arc-shaped duct piece is arc-shaped; the first arc-shaped plate is connected to the arc-shaped pipe piece along the front side edge of the arc-shaped pipe piece; the second arc-shaped plate is connected to the arc-shaped pipe piece along the rear side edge of the arc-shaped pipe piece; the two connecting plates are respectively connected to two ends of the arc-shaped duct piece; the outer side of the connecting plate is connected with a first rubber pad; the inner supports are provided with a group of inner supports which are arranged between the first arc-shaped plate and the second arc-shaped plate at intervals; the number and the positions of the inner supports correspond to those of the shield tunneling machine propelling jacks; two ends of the inner support are respectively connected with the first arc-shaped plate and the second arc-shaped plate; and adjacent steel negative ring pipe structural units are connected through a connecting plate.
Preferably, the width of the arc-shaped pipe piece is 1.2 m-2 m, and the radius of the arc-shaped pipe piece is 3 m-15 m.
Preferably, the height of the first arc-shaped plate is 0.2-0.5 m, and the height of the second arc-shaped plate is 0.2-0.5 m corresponding to the height of the first arc-shaped plate.
Preferably, the connecting plate is provided with a first connecting hole; the connecting plates of the adjacent steel-made negative ring pipe structure units are connected through straight bolts penetrating through the first connecting holes.
Preferably, a second rubber pad is connected to the outer side surface of the second arc-shaped plate; second connecting holes are formed in the second arc-shaped plate at intervals; the second rubber pad of the steel negative ring pipe structure is attached to the end of the constructed annular concrete pipe piece, and the steel negative ring pipe structure is connected with the annular concrete pipe piece through a bent bolt penetrating through the second connecting hole.
Preferably, the steel negative ring pipe structure unit is provided with a hoisting hole.
Compared with the prior art, the utility model has the following characteristics and beneficial effect.
1. Compared with the existing prefabricated reinforced concrete duct piece, the steel negative ring pipe structure of the utility model overcomes the problems that the existing prefabricated reinforced concrete duct piece is easy to damage, has poor turnover performance, has high disposal cost for the waste prefabricated reinforced concrete negative ring pipe piece, and wastes time and labor for dismantling; and the utility model discloses a steel negative ring canal structure demolishs swift, cyclic utilization, and green has reduced reinforced concrete negative ring canal piece and has dealt with the expense, has reduced construction cost.
2. The steel negative ring pipe structure of the utility model is formed by splicing four same steel negative ring pipe structure units, and the steel negative ring pipe structure units comprise arc-shaped pipe pieces, a first arc-shaped plate, a second arc-shaped plate, a connecting plate and an inner support; the steel negative ring pipe structure is detachably connected with the reinforced concrete pipe piece, and adjacent steel negative ring pipe structure units are connected through straight bolts; the utility model provides a traditional prefabricated negative loop pipe piece of reinforced concrete easily damage, can the turnover poor, deal with the expense height and demolish the technical problem who wastes time and energy.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic plane structure diagram of the steel negative ring pipe structure unit of the present invention.
Fig. 2 is a schematic structural diagram of the middle steel negative ring pipe structural unit of the present invention, which is provided with a first rubber pad and a second rubber pad.
FIG. 3 is a schematic side view of the connection between the steel negative ring pipe structure and the reinforced concrete segment.
Fig. 4 is a schematic view of the three-dimensional structure of the middle steel negative ring pipe structure and the reinforced concrete pipe piece.
Reference numerals: 1-arc-shaped duct piece, 2-first arc-shaped plate, 3-second arc-shaped plate, 4-connecting plate, 5-inner support, 6-first rubber pad, 7-second rubber pad, 8-first connecting hole, 9-straight bolt, 10-second connecting hole, 11-bent bolt, 12-reinforced concrete duct piece and 13-hoisting hole.
Detailed Description
As shown in fig. 1-4, the steel-made negative ring pipe structure for shield construction is formed by splicing four identical steel-made negative ring pipe structure units; the method is characterized in that: the steel negative ring pipe structural unit comprises an arc-shaped pipe piece 1, a first arc-shaped plate 2, a second arc-shaped plate 3, a connecting plate 4 and an inner support 5; the vertical tangent plane of the arc-shaped duct piece 1 is arc-shaped; the first arc-shaped plate 2 is connected to the arc-shaped pipe piece 1 along the front side edge of the arc-shaped pipe piece 1; the second arc-shaped plate 3 is connected to the arc-shaped duct piece 1 along the rear side edge of the arc-shaped duct piece 1; two connecting plates 4 are respectively connected to two ends of the arc-shaped duct piece 1; the outer side of the connecting plate 4 is connected with a first rubber pad 6; the inner supports 5 are provided with a group and are arranged between the first arc-shaped plate 2 and the second arc-shaped plate 3 at intervals; the number and the positions of the inner supports 5 correspond to those of the shield tunneling machine propelling jacks; two ends of the inner support 5 are respectively connected with the first arc-shaped plate 2 and the second arc-shaped plate 3; and adjacent steel negative ring pipe structural units are connected through a connecting plate 4.
In this embodiment, the width of arc section of jurisdiction 1 is 1.2m ~2m, the radius of arc section of jurisdiction 1 is 3m ~15 m.
In this embodiment, the height of the first arc-shaped plate 2 is 0.2m to 0.5m, and the height of the second arc-shaped plate 3 is 0.2m to 0.5m corresponding to the height of the first arc-shaped plate 2.
In this embodiment, the connecting plate 4 is provided with a first connecting hole 8; the connecting plates 4 of the adjacent steel-made negative ring pipe structure units are connected through straight bolts 9 arranged in the first connecting holes 8 in a penetrating mode.
In this embodiment, a second rubber pad 7 is connected to the outer side surface of the second arc-shaped plate 3; second connecting holes 10 are formed in the second arc-shaped plate 3 at intervals; the second rubber pad 7 of the steel negative ring pipe structure is attached to the end of the constructed reinforced concrete segment 12, and the steel negative ring pipe structure is connected with the reinforced concrete segment 12 through a bent bolt 11 penetrating through the second connecting hole 10.
In this embodiment, the steel negative ring pipe structural unit is provided with a hoisting hole 13.
In this embodiment, the inner support 5 is made of steel pipe or steel bar.
In this embodiment, each arc-shaped duct piece 1 has the same size and shape, and the plane is unfolded into a regular trapezoid.
The construction method of the steel negative ring pipe structure comprises the following steps.
Step one, according to a design drawing of a steel negative ring pipe structure, a steel negative ring pipe structure unit is processed and manufactured in a factory, and materials are transported to a construction site.
And step two, after the shield starting working well is finished and has starting conditions, the deviation of the embedded steel ring at the shield tunnel portal is rechecked.
And step three, carrying out measurement and setting-out on a construction site, and determining the specific positions of the shield starting base and the reaction frame.
And step four, mounting the shield starting base and the reaction frame.
And fifthly, installing the main machine of the shield machine and the subsequent matching equipment, and debugging.
Step six, after starting conditions are met, mounting a first steel negative ring pipe structure unit at the shield tail of the shield tunneling machine; the first steel negative ring pipe structure unit is arranged at the top;
and seventhly, successively installing a second steel-made negative ring pipe structure unit and a third steel-made negative ring pipe structure unit, and respectively connecting the second steel-made negative ring pipe structure unit and the third steel-made negative ring pipe structure unit with the first steel-made negative ring pipe structure unit through a straight bolt 9 by using a connecting plate 4.
And step eight, after the second steel-made negative ring pipe structure unit and the third steel-made negative ring pipe structure unit are installed, welding L-shaped steel plates at the connecting position of the first steel-made negative ring pipe structure unit and the second steel-made negative ring pipe structure unit and the connecting position of the first steel-made negative ring pipe structure unit and the third steel-made negative ring pipe structure unit in the shield shell to fix the second steel-made negative ring pipe structure unit and the third steel-made negative ring pipe structure unit.
And step nine, installing a fourth steel-made negative ring pipe structural unit at the bottom, wherein two ends of the fourth steel-made negative ring pipe structural unit are respectively connected with the steel-made negative ring pipe structural units at two sides through a connecting plate 4 and a straight bolt 9.
And step ten, cutting off the L-shaped steel plate after the first ring steel negative ring pipe structure is manufactured, and pushing the steel negative ring pipe structure to be closely attached to the reaction frame by using a pushing jack.
And step eleven, sequentially installing a first steel-made negative ring pipe structure unit of a second ring steel-made negative ring pipe structure.
And step twelve, repeating the step seven to the step eleven repeatedly to complete the installation of all steel negative ring pipe structures.
And step thirteen, installing a first ring of reinforced concrete pipe pieces, wherein the first ring of reinforced concrete pipe pieces are connected with the steel negative ring pipe structure by adopting bent bolts 11.
And step fourteen, after the shield machine completely enters the tunnel and the number of constructed rings is enough to provide shield propulsion counterforce, dismantling the steel negative ring pipe structure.
The above embodiments are not exhaustive of the specific embodiments, and other embodiments are possible, and the above embodiments are intended to illustrate, but not limit the scope of the present invention, and all applications coming from the simple changes of the present invention fall within the scope of the present invention.
Claims (6)
1. A steel negative ring pipe structure for shield construction is formed by splicing four same steel negative ring pipe structure units; the method is characterized in that: the steel negative ring pipe structure unit comprises an arc-shaped pipe piece (1), a first arc-shaped plate (2), a second arc-shaped plate (3), a connecting plate (4) and an inner support (5); the vertical section of the arc-shaped duct piece (1) is arc-shaped; the first arc-shaped plate (2) is connected to the arc-shaped pipe piece (1) along the front side edge of the arc-shaped pipe piece (1); the second arc-shaped plate (3) is connected to the arc-shaped pipe piece (1) along the rear side edge of the arc-shaped pipe piece (1); two connecting plates (4) are respectively connected to two ends of the arc-shaped duct piece (1); a first rubber pad (6) is connected to the outer side of the connecting plate (4); the inner supports (5) are provided with a group and are arranged between the first arc-shaped plate (2) and the second arc-shaped plate (3) at intervals; the number and the positions of the inner supports (5) correspond to those of the shield tunneling machine propelling jacks; two ends of the inner support (5) are respectively connected with the first arc-shaped plate (2) and the second arc-shaped plate (3); and adjacent steel negative ring pipe structure units are connected through a connecting plate (4).
2. The steel negative ring pipe structure for shield construction according to claim 1, wherein: the width of arc section of jurisdiction (1) is 1.2m ~2m, the radius of arc section of jurisdiction (1) is 3m ~15 m.
3. The steel negative ring pipe structure for shield construction according to claim 1, wherein: the height of the first arc-shaped plate (2) is 0.2 m-0.5 m, and the height of the second arc-shaped plate (3) is adapted to the height of the first arc-shaped plate (2) and is 0.2 m-0.5 m.
4. The steel negative ring pipe structure for shield construction according to claim 1, wherein: the connecting plate (4) is provided with a first connecting hole (8); the connecting plates (4) of the adjacent steel-made negative ring pipe structure units are connected through straight bolts (9) arranged in the first connecting holes (8) in a penetrating mode.
5. The steel negative ring pipe structure for shield construction according to claim 1, wherein: a second rubber pad (7) is connected to the outer side surface of the second arc-shaped plate (3); second connecting holes (10) are formed in the second arc-shaped plate (3) at intervals; and a second rubber pad (7) of the steel negative ring pipe structure is attached to the end part of the constructed reinforced concrete pipe piece (12), and the steel negative ring pipe structure is connected with the reinforced concrete pipe piece (12) through a bent bolt (11) penetrating through the second connecting hole (10).
6. The steel negative ring pipe structure for shield construction according to claim 1, wherein: and hoisting holes (13) are formed in the steel negative ring pipe structure unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021887894.8U CN212803267U (en) | 2020-09-02 | 2020-09-02 | Steel negative ring pipe structure for shield construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021887894.8U CN212803267U (en) | 2020-09-02 | 2020-09-02 | Steel negative ring pipe structure for shield construction |
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| CN212803267U true CN212803267U (en) | 2021-03-26 |
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| CN202021887894.8U Active CN212803267U (en) | 2020-09-02 | 2020-09-02 | Steel negative ring pipe structure for shield construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279788A (en) * | 2021-06-10 | 2021-08-20 | 北京市政建设集团有限责任公司 | Novel steel negative ring pipe structure for shield construction |
| CN113775356A (en) * | 2021-09-01 | 2021-12-10 | 中建交通建设集团有限公司 | Shield constructs underground butt joint section secondary lining structure |
-
2020
- 2020-09-02 CN CN202021887894.8U patent/CN212803267U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279788A (en) * | 2021-06-10 | 2021-08-20 | 北京市政建设集团有限责任公司 | Novel steel negative ring pipe structure for shield construction |
| CN113279788B (en) * | 2021-06-10 | 2022-07-22 | 北京市政建设集团有限责任公司 | Novel steel negative ring pipe structure for shield construction |
| CN113775356A (en) * | 2021-09-01 | 2021-12-10 | 中建交通建设集团有限公司 | Shield constructs underground butt joint section secondary lining structure |
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