CN111963211A - Steel structure for connecting shield tunnel with external channel - Google Patents
Steel structure for connecting shield tunnel with external channel Download PDFInfo
- Publication number
- CN111963211A CN111963211A CN202010847308.5A CN202010847308A CN111963211A CN 111963211 A CN111963211 A CN 111963211A CN 202010847308 A CN202010847308 A CN 202010847308A CN 111963211 A CN111963211 A CN 111963211A
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- China
- Prior art keywords
- plate
- welded
- shield
- fixed
- steel structure
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Abstract
The invention discloses a steel structure for connecting a shield tunnel with an external channel, wherein the steel structure is positioned at an opening position on a shield segment and comprises a top beam positioned at the top of the opening, a bottom beam positioned at the bottom of the opening and arc-shaped special-shaped stand columns positioned at two sides of the opening. The invention has the advantages that: through the arrangement of the joint steel structure, on the premise of ensuring the rigidity, the dead weight of the structure is effectively reduced, and the overlarge load at the joint structure is avoided; meanwhile, the arrangement of the outer side plate well isolates the external environment from the shield tunnel; the direction of the middle rib plate is consistent with the direction of the rib plate of the shield steel pipe piece, so that the continuity of the stress of the joint structure and the stress of the pipe piece structure are ensured.
Description
Technical Field
The invention belongs to the technical field of shield tunnels, and particularly relates to a steel structure for connecting a shield tunnel with an external channel.
Background
With the advance of the modernization process, the construction of the shield tunnel in urban traffic construction is more and more common, but the shield tunnel always has the characteristics of more difficulty and higher risk in the construction process of the subway tunnel. The external channel of the shield tunnel is used as a functional channel in the tunnel, bears the functions of fire fighting, evacuation, pipeline arrangement and the like of the tunnel, and is an important component of the shield tunnel. However, due to the characteristics of various external channel structure types, complex environmental geological conditions, high construction precision requirement, ground settlement control, tunnel waterproofing, structural stress system change after the shield segment is perforated and the like, how to safely and effectively connect the shield tunnel structure with the external channel structure is a technical problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a steel structure for connecting a shield tunnel and an external channel according to the defects of the prior art, and the steel structure effectively reduces the dead weight of the structure and avoids overlarge load at a joint structure on the premise of ensuring the rigidity by arranging a top beam and a bottom beam which are connected with the external channel and arc-shaped special-shaped stand columns at two sides at the position of an opening on a shield segment.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a steel construction that shield tunnel and external channel are connected which characterized in that the steel construction is located the trompil position department on the shield constructs the section of jurisdiction, including being located the top roof beam at trompil top, being located the bottom roof beam of trompil bottom and being located the convex dysmorphism stand of trompil both sides.
The openings are rectangular in horizontal and vertical projection.
The top roof beam includes roof, outer panel and interior plate, the roof is followed the last reason portion setting of trompil, the upper portion of outer panel is through sealed flitch welded fastening in on the roof, the lower part of outer panel is followed the extrados of shield structure section of jurisdiction arranges, the upper portion of interior plate with roof welded fastening, lower part with the lower part welded fastening of outer panel, the roof the outer panel and interior plate three welds the constitution and is the triangle-shaped top roof beam, be provided with the vertical stiffening rib of interval arrangement in the inner chamber of top roof beam.
The shield segment is made of steel lining blocks, and the top plate is welded and fixed with the steel lining blocks on the upper edge of the opening.
The bottom roof beam includes bottom plate, outer panel and interior plate, the bottom plate is followed the lower edge portion setting of trompil, the lower part of outer panel is through sealed flitch welded fastening in on the bottom plate, the upper portion of outer panel is followed the extrados of shield structure section of jurisdiction arranges, the upper portion of interior plate with the upper portion welded fastening of outer panel, lower part with bottom plate welded fastening, the bottom plate the outer panel and interior plate three welds the constitution and is the triangle-shaped bottom roof beam, be provided with the vertical stiffening rib of interval arrangement in the inner chamber of bottom roof beam.
The shield segment is made of steel lining blocks, and the bottom plate is welded and fixed with the steel lining blocks on the lower edge of the opening.
And the outer side plate is rigidly connected with the external channel structure.
The arc-shaped special-shaped stand column comprises a hole edge plate, an outer side plate and an inner side plate, wherein the hole edge plate is arranged along the side edge part of an opening, one side of the hole edge of the outer side plate is welded and fixed on the hole edge plate through a sealing pasting plate, one side of the non-hole edge of the outer side plate is arranged along the outer arc surface of a shield segment, one side of the hole edge of the inner side plate is welded and fixed with the hole edge plate, one side of the non-hole edge of the inner side plate is welded and fixed with one side of the non-hole edge of the outer side plate, the hole edge plate, the outer side plate and the inner side plate are welded to form a triangular special-shaped stand column, and horizontal stiffening ribs arranged at intervals are arranged in the inner cavity of the special-shaped.
The invention has the advantages that: through the arrangement of the joint steel structure, on the premise of ensuring the rigidity, the dead weight of the structure is effectively reduced, and the overlarge load at the joint structure is avoided; meanwhile, the arrangement of the outer side plate well isolates the external environment from the shield tunnel; the direction of the middle rib plate is consistent with the direction of the rib plate of the shield steel pipe piece, so that the continuity of the stress of the joint structure and the stress of the pipe piece structure are ensured.
Drawings
FIG. 1 is a schematic diagram of a shield tunnel and an external channel connected steel structure according to the present invention;
FIG. 2 is a schematic view of the shield segments at the openings of the present invention in an expanded configuration;
FIG. 3 is a three-dimensional view of the connection structure at the opening of the present invention;
FIG. 4 is a schematic structural view of a bottom beam and a top beam of the present invention;
fig. 5 is a schematic structural diagram of the arc-shaped special-shaped column in the invention.
Detailed Description
Referring to fig. 1-5, the symbols in the figures are: the shield structure comprises a circumscribed structure 1, an opening 2, a steel structure 3, a top beam 3a, an outer side plate 3a1, an inner side plate 3a2, a top plate 3a3, a vertical stiffening rib 3a4, a sealing patch 3a5, a bottom beam 3b, an outer side plate 3b1, an inner side plate 3b2, a bottom plate 3b3, a vertical stiffening rib 3b4, a sealing patch 3b5, a circular arc-shaped special-shaped upright post 3c, an outer side plate 3c1, an inner side plate 3c2, a hole edge plate 3c3, a horizontal stiffening rib 3c4, a sealing patch 3c5, a shield segment 4 and a shield segment ring 5.
Example (b): as shown in fig. 1-5, the embodiment specifically relates to a steel structure for connecting a shield tunnel with an external channel, and the steel structure 3 is also called a joint structure, and is installed at the position of an opening 2 on a shield segment 4, and comprises a top beam 3a located at the top of the opening 2, a bottom beam 3b located at the bottom of the opening 2, and arc-shaped special-shaped columns 3c located at two sides of the opening 2.
As shown in fig. 1-5, the opening 2 in this embodiment is disposed at the upper shoulder position of the shield segment ring 5, i.e. at the inclinometer position of the shield segment ring 5, so that the stress is complicated. The steel structure 3 forms a ring structure through the combination of the top beam 3a, the bottom beam 3b and the arc-shaped special-shaped columns 3c positioned on two sides, and after the opening 2 is formed, the vertical load and the internal force transmitted from the tube side of the opening 2 are borne through the top beam 3a and the bottom beam 3b, the force is transmitted to the arc-shaped special-shaped columns 3c on two sides through the steel structure, and finally the force is transmitted to the shield segment 4 with complete periphery through the arc-shaped special-shaped columns 3 c.
As shown in fig. 1 to 5, the roof beam in this embodiment includes a top plate 3a3, an outer side plate 3a1, and an inner side plate 3a2, the top plate 3a1 is disposed along the upper edge of the opening 2, the upper portion of the outer side plate 3a1 is welded and fixed to the top plate 3a3 via a sealing patch 3a5, the sealing patch 3a5 ensures structural waterproof performance, the lower portion of the outer side plate 3a1 is disposed along the outer arc surface of the shield segment 4, the upper portion of the inner side plate 3a2 is welded and fixed to the top plate 3a3, the lower portion is welded and fixed to the lower portion of the outer side plate 3a1, the three portions are welded to form a triangular roof beam 3a, and vertical stiffening ribs 3a4 are disposed in the inner cavity of the roof beam 3a to further increase the load-carrying capacity of the roof beam 3 a. The shield segment 4 is a steel lining block, and the top plate 3a3 is welded and fixed to the steel lining block.
As shown in fig. 1 to 4, the bottom beam 3b in this embodiment includes a bottom plate 3b3, an outer side plate 3b1 and an inner side plate 3b2, the bottom plate 3b3 is disposed along the lower edge of the bore 2, the lower portion of the outer side plate 3b1 is welded and fixed to the bottom plate 3b3 via a sealing patch 3b5, the sealing patch 3b5 can ensure structural waterproof performance, the upper portion of the outer side plate 3b1 is disposed along the outer arc surface of the shield segment 4, the upper portion of the inner side plate 3b2 is welded and fixed to the upper portion of the outer side plate 31 and the lower portion is welded and fixed to the bottom plate 3b3, the bottom plate 3b3, the outer side plate 3b1 and the inner side plate 3b2 are welded to form a triangular bottom beam 3b, and vertical stiffening ribs 3b4 are disposed at intervals in the inner cavity of the bottom beam 3b in order to further increase the supporting and bearing capacity of. The shield segment 4 is made of steel lining blocks, and the bottom plate 3b3 is welded and fixed with the steel lining blocks.
As shown in fig. 5, the circular arc shaped special-shaped pillar 3c in this embodiment includes a hole side plate 3c3, an outer side plate 3c1 and an inner side plate 3c2, the hole side plate 3c3 is disposed along the side edge portion of the opening 2, the hole side of the outer side plate 3c1 is welded and fixed to the hole side plate 3c3 via a sealing patch 3c5, the non-hole side of the outer side plate 3c1 is disposed along the outer arc surface of the shield segment 4, the hole side of the inner side plate 3c2 is welded and fixed to the hole side plate 3c3, the non-hole side of the inner side plate 3c2 is welded and fixed to the non-hole side of the outer side plate 3c1, the hole side plate 3c3, the outer side plate 3c1 and the outer side plate 3c2 are welded to form a circular arc shaped special-shaped pillar 3c, and horizontal stiffening ribs 3c4 are disposed in the inner cavity of the circular arc shaped pillar 3 c.
In addition, a rigid connection mode is adopted between the external connection structure 1 and each outer side plate on the steel structure 3.
Claims (8)
1. The utility model provides a steel construction that shield tunnel and external channel are connected which characterized in that the steel construction is located the trompil position department on the shield constructs the section of jurisdiction, including being located the top roof beam at trompil top, being located the bottom roof beam of trompil bottom and being located the convex dysmorphism stand of trompil both sides.
2. The steel structure of claim 1, wherein the openings are rectangular in horizontal and vertical projection.
3. The steel structure of claim 1, wherein the top beam comprises a top plate, an outer plate and an inner plate, the top plate is disposed along an upper edge of the opening, an upper portion of the outer plate is welded and fixed to the top plate through a sealing plate, a lower portion of the outer plate is disposed along an extrados surface of the shield segment, an upper portion of the inner plate is welded and fixed to the top plate, a lower portion of the inner plate is welded and fixed to a lower portion of the outer plate, the top plate, the outer plate and the inner plate are welded to form the triangular top beam, and vertical stiffening ribs are disposed in an inner cavity of the top beam at intervals.
4. The steel structure of claim 3, wherein the shield segments are steel lining blocks, and the top plate is welded to the steel lining blocks on the upper edge of the opening.
5. The steel structure of claim 1, wherein the bottom beam comprises a bottom plate, an outer plate and an inner plate, the bottom plate is disposed along a lower edge of the opening, a lower portion of the outer plate is welded and fixed to the bottom plate through a sealing plate, an upper portion of the outer plate is disposed along an extrados surface of the shield segment, an upper portion of the inner plate is welded and fixed to an upper portion of the outer plate, a lower portion of the inner plate is welded and fixed to the bottom plate, the outer plate and the inner plate are welded to form the triangular bottom beam, and vertical stiffening ribs are disposed in an inner cavity of the bottom beam at intervals.
6. The steel structure of claim 5, wherein the shield segments are steel lining blocks, and the bottom plate is welded to the steel lining blocks on the lower edge of the opening.
7. A shield tunnel and outer channel connecting steel structure according to claim 3 or 5, wherein said outer panel is rigidly connected to the outer channel structure.
8. The steel structure of claim 1, wherein the arc-shaped special-shaped columns comprise hole side plates, outer side plates and inner side plates, the hole side plates are arranged along the side edge portions of the openings, one side of the hole side of each outer side plate is welded and fixed on the hole side plates through sealing and pasting plates, one side of the non-hole side of each outer side plate is arranged along the outer arc surface of the shield segment, one side of the hole side of each inner side plate is welded and fixed with the hole side plates, one side of the non-hole side of each inner side plate is welded and fixed with one side of the non-hole side of each outer side plate, the hole side plates, the outer side plates and the inner side plates are welded to form the arc-shaped special-shaped columns in a triangular shape, and horizontal stiffening ribs are arranged in the inner cavities of the arc-shaped special-shaped columns at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010847308.5A CN111963211B (en) | 2020-08-21 | 2020-08-21 | Steel structure for connecting shield tunnel with external channel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010847308.5A CN111963211B (en) | 2020-08-21 | 2020-08-21 | Steel structure for connecting shield tunnel with external channel |
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| CN111963211A true CN111963211A (en) | 2020-11-20 |
| CN111963211B CN111963211B (en) | 2022-09-27 |
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| CN209457945U (en) * | 2018-12-07 | 2019-10-01 | 中铁上海工程局集团有限公司 | The compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction |
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| CN209539364U (en) * | 2019-01-14 | 2019-10-25 | 上海市隧道工程轨道交通设计研究院 | A kind of joint connecting structure of service channel and running tunnel |
| CN111119231A (en) * | 2020-01-02 | 2020-05-08 | 深圳市综合交通设计研究院有限公司 | Road structure of half roadbed and half tunnel and construction method thereof |
| CN111379574A (en) * | 2020-05-06 | 2020-07-07 | 中国石油天然气集团有限公司 | Method for connecting oil-gas pipeline into shield tunnel from middle |
| CN111379573A (en) * | 2020-05-06 | 2020-07-07 | 中国石油天然气集团有限公司 | Connecting system for connecting shield tunnel in middle of oil and gas pipeline |
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2020
- 2020-08-21 CN CN202010847308.5A patent/CN111963211B/en active Active
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| JP2880706B1 (en) * | 1998-03-18 | 1999-04-12 | 西松建設株式会社 | Segment structure of shield tunnel and branching method of shield tunnel using the same |
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|---|---|
| CN111963211B (en) | 2022-09-27 |
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