CN215057399U - TBM originating guide platform structure - Google Patents
TBM originating guide platform structure Download PDFInfo
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- CN215057399U CN215057399U CN202121506736.8U CN202121506736U CN215057399U CN 215057399 U CN215057399 U CN 215057399U CN 202121506736 U CN202121506736 U CN 202121506736U CN 215057399 U CN215057399 U CN 215057399U
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Abstract
The utility model provides a TBM originating guide platform structure. The TBM originating guide platform structure comprises a backfilling platform arranged at an originating hole, a sunken guide platform construction area constructed on the backfilling platform and close to the originating hole, and an originating guide platform arranged in the sunken guide platform construction area, wherein a reinforcing bottom plate is constructed on the bottom surface of the sunken guide platform construction area, the originating guide platform comprises two parallel reinforced concrete guide platforms, the top surface of each reinforced concrete guide platform is provided with an inclined surface from outside to inside, the inclined surfaces of the two reinforced concrete guide platforms are distributed in a reversed splayed shape, a steel plate is embedded on the inclined surface of each reinforced concrete guide platform along the length direction of the guide platform, and the TBM originating guide rail is welded on the steel plate. The utility model discloses a guide platform that originates is small, rigidity is big, the wholeness is strong, is convenient for push away and the base of originating as the sky of TBM main equipment, can solve the problem that the sky in TBM hole pushed away apart from long, tunnel interior position little, its steel bracket installation difficulty.
Description
Technical Field
The utility model relates to a tunnel construction field, in particular to TBM originating guide platform structure for narrow and small space.
Background
A full-face tunneling machine (TBM) is used as a special engineering machine for tunneling, is suitable for tunneling of hard rock strata, and is widely applied to tunnel engineering of subways, railways, highways, municipal administration, hydropower and the like. With the continuous development of traffic, many intercity railways or high-speed rails are constructed in mountainous areas, and for tunnel construction projects in the mountainous areas, because of more mountains and narrow construction space, the requirement of TBM starting is difficult to meet; as the TBM needs to be pushed to the starting tunnel face in the hole, the position in the tunnel is small, a common steel bracket cannot be installed, and the length of the push in the hole reaches about 25 meters, the steel bracket is difficult to install. And in the shield construction process, auxiliary structures such as a sedimentation tank and the like are required to be constructed to recover waste water in the construction process, and due to the condition that the starting space is limited, the auxiliary structures are not provided with a multipurpose space to be constructed in a narrow area, so that the TBM shield construction is not changed.
Disclosure of Invention
The utility model discloses the not enough of prior art provides a lead a structure that is used for TBM of narrow and small space to originate, should lead a small rigidity of structure big, the wholeness is strong, is convenient for push away and originate the base as the sky of TBM main equipment.
In order to achieve the technical purpose, the utility model provides a TBM starting guide platform structure, its characterized in that: the tunnel boring machine comprises a backfilling platform arranged at an initial opening, a sunken guide platform construction area constructed on the backfilling platform close to the initial opening and an initial guide platform arranged in the sunken guide platform construction area, wherein a reinforcing bottom plate is constructed on the bottom surface of the sunken guide platform construction area, the initial guide platform comprises two parallel reinforced concrete guide platforms, the top surface of each reinforced concrete guide platform is provided with an inclined surface from outside to inside, the inclined surfaces of the two reinforced concrete guide platforms are distributed in a reversed V shape, a steel plate is embedded in the inclined surface of each reinforced concrete guide platform along the length direction of the guide platform, and a TBM initial guide rail is welded on the steel plate.
The utility model discloses better technical scheme: the backfill platform is formed by arranging a retaining wall around a backfill area and then adopting gravel layered backfill layered compaction in the retaining wall surrounding area, wherein the backfill thickness of each layer is controlled within 50 cm.
The utility model discloses better technical scheme: the sunken type guide platform construction area is a square sunken area with the length of 15-16 m, the width of 10-11 m and the depth of 0.8-1.2 m, and the reinforcing bottom plate is composed of a double-layer reinforcing mesh paved on the bottom surface of the sunken type guide platform construction area and a C30 concrete layer poured on the double-layer reinforcing mesh and with the thickness of 24-26 cm.
The utility model discloses better technical scheme: the starting guide platform is of a C30 reinforced concrete structure, the width of each guide platform is 6-6.5 m, the height of each guide platform is 12-13 m, and the inclined surface of each guide platform is flush with or higher than the top surface of the backfilling platform.
The utility model discloses better technical scheme: the width of the steel plate is 38-42 cm, and the thickness of the steel plate is 2-2.5 cm.
The utility model discloses better technical scheme: the TBM originating rail used 60kg/m track.
The utility model has the advantages that:
(1) the utility model discloses a platform is led to originating uses reinforced concrete to lead the platform, and small rigidity is big, the wholeness is strong, is convenient for push away and originating the base as the sky of TBM main equipment, can solve the problem of TBM hole sky push away apart from long, tunnel interior position little, its steel bracket installation difficulty.
(2) The utility model discloses well backfill platform adopts the layering to backfill the compaction of layering mode, has guaranteed the intensity of backfill platform to dig on backfill platform and establish down concave shield and construct the equipment district, this region can also be the sedimentation tank after the completion of starting at the shield, rational utilization the construction space.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a longitudinal sectional view of the present invention.
In the figure: the method comprises the following steps of 1-starting a hole, 2-backfilling platform, 3-recessed guide platform construction area, 4-reinforcing bottom plate, 400-double-layer reinforcing mesh, 401-C30 concrete layer, 5-starting guide platform, 500-inclined surface, 6-steel plate, 7-TBM guide rail and 8-retaining wall.
Detailed Description
The present invention will be further explained with reference to the drawings and examples. Fig. 1 to 3 are drawings of the embodiment, which are drawn in a simplified manner and are only used for clearly and concisely illustrating the purpose of the embodiment of the present invention. The following detailed description of the embodiments of the present invention is presented in the drawings and is not intended to limit the scope of the invention as claimed. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The embodiment provides a TBM originating guide platform structure, as shown in figures 1 to 3, comprising a backfill platform 2 arranged at an originating opening 1, a sunken guide platform construction area 3 constructed at the position of the backfill platform 2 adjacent to the originating opening 1, and an originating guide platform 5 arranged in the sunken guide platform construction area 3, wherein the backfill platform 2 is formed by arranging a retaining wall 8 around the backfill area and backfilling and compacting in layers by layers in the area surrounded by the retaining wall by adopting gravels, and the backfill thickness of each layer is controlled within 50 cm. The construction area 3 of the sunken guide platform is a square sunken area with the length of 15m, the width of 10m and the depth of 1m, the starting guide platform 5 comprises two reinforced concrete guide platforms which are parallel to each other, the top surface of each reinforced concrete guide platform is provided with an inclined surface 500 from outside to inside, the inclined surfaces 500 of the two reinforced concrete guide platforms are distributed in an inverted splayed shape, a steel plate 6 is embedded on the inclined surface of each reinforced concrete guide platform 500 along the length direction of the guide platform, a TBM starting guide rail 7 is welded on the steel plate 6, and the TBM starting guide rail 7 adopts a 60kg/m track. The reinforced bottom plate 4 consists of a double-layer reinforcing mesh 400 paved on the bottom surface of the concave guide table construction area 3 and a C30 concrete layer 401 which is poured on the double-layer reinforcing mesh and has the thickness of 24-26 cm; the reinforced concrete guide platform is of a C30 reinforced concrete structure, the width of each guide platform is 6-6.5 m, the height of each guide platform is 12-13 m, the width of a steel plate laid on the inclined surface of the reinforced concrete guide platform is 38-42 cm, and the thickness of the steel plate is 2-2.5 cm.
During the concrete construction of the utility model, firstly, the backfilling area is enclosed by the retaining wall, then the backfilling area is backfilled by the gravels in the field in layers and compacted in layers, the backfilling thickness of each layer is controlled within 50cm, and the field is backfilled to be consistent with the height of the table top of the steel structure platform; the originating platform was backfilled to design and then hardened with 25cm thick C30 concrete. Then excavating a sunken guide platform construction area 3 with the length of 15m, the width of 10m and the depth of 1m at the position of the backfill platform 2 close to the starting opening 1, hardening the bottom surface of the sunken guide platform construction area 3, paving double-layer reinforcing steel bar meshes with the diameter of 16 mm and the distance of 300mm, and then pouring 25cmC30 concrete; then constructing two parallel starting guide platforms 5 in a concave guide platform construction area 3, wherein the starting guide platforms 5 are of a C30 reinforced concrete structure, the top surface of each reinforced concrete guide platform is provided with an inclined surface 500 from outside to inside, the inclined surfaces of the two reinforced concrete guide platforms are distributed in an inverted splayed shape, the inclined surfaces 500 of the two reinforced concrete guide platforms are flush with the top surface of the backfill platform 2 or higher than the backfill platform, the length of each guide platform is 13m, the width of each guide platform is 6259mm, the overall height of each guide platform is 1292mm, and the thickness of a web plate is 700 mm; the horizontal distance from the initial guide platform to the center line of the tunnel is 1.935m, the height of the outer platform higher than the backfill platform part is 592mm, the height of the inner side close to the TBM is 321mm, and steel plates with the width of 40cm and the thickness of 2cm are embedded on the inclined surface of each reinforced concrete guide platform along the length direction of the guide platform. In order to prevent the starting guide platform from laterally moving, the guide platform is fixed by embedding C22 steel bars in the backfill surface of the inverted arch, the embedding depth is 10d, the steel bars are double rows of steel bars, and the distance between the steel bars is 200 mm. The guide platform is close to the shield body inclined plane and pre-buried leads to long steel sheet, and the steel sheet width is 40cm, and thickness is 2 cm. After the construction of the starting guide platform is completed, a 60kg/m track is adopted as a TBM stepping slide rail to be directly welded on a steel plate.
The above description is only one embodiment of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. A TBM originating console structure which characterized in that: the steel plate reinforced concrete guide platform comprises a backfill platform (2) arranged at an initial opening (1), a sunken guide platform construction area (3) constructed at the position, close to the initial opening (1), of the backfill platform (2), and an initial guide platform (5) arranged in the sunken guide platform construction area (3), wherein a reinforcing bottom plate (4) is constructed on the bottom surface of the sunken guide platform construction area (3), the initial guide platform (5) comprises two parallel reinforced concrete guide platforms, an inclined surface (500) from outside to inside is arranged on the top surface of each reinforced concrete guide platform, the inclined surfaces (500) of the two reinforced concrete guide platforms are distributed in an inverted splayed shape, a steel plate (6) is embedded in the inclined surface (500) of each reinforced concrete guide platform along the length direction of the guide platform, and a TBM initial guide rail (7) is welded on the steel plate (6).
2. The TBM origination station structure of claim 1, wherein: the backfill platform (2) is formed by arranging a retaining wall (8) around a backfill area and adopting broken stones to backfill, layer by layer, and compact in the area surrounded by the retaining wall, and the backfill thickness of each layer is controlled within 50 cm.
3. A TBM origination station structure according to claim 1 or 2, wherein: the sunken type guide platform construction area (3) is a square sunken area with the length of 15-16 m, the width of 10-11 m and the depth of 0.8-1.2 m, and the reinforcing bottom plate (4) is composed of a double-layer reinforcing mesh (400) paved on the bottom surface of the sunken type guide platform construction area (3) and a C30 concrete layer (401) poured on the double-layer reinforcing mesh and with the thickness of 24-26 cm.
4. A TBM origination station structure according to claim 1 or 2, wherein: the starting guide platform (5) is of a C30 reinforced concrete structure, the width of each guide platform is 6-6.5 m, the height of each guide platform is 12-13 m, and the inclined surface (500) of each guide platform is flush with the top surface of the backfill platform (2) or higher than the top surface of the backfill platform (2).
5. A TBM origination station structure according to claim 1 or 2, wherein: the width of the steel plate (6) is 38-42 cm, and the thickness of the steel plate is 2-2.5 cm.
6. A TBM origination station structure according to claim 1 or 2, wherein: the TBM originating rail (7) adopts a 60kg/m track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121506736.8U CN215057399U (en) | 2021-07-02 | 2021-07-02 | TBM originating guide platform structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121506736.8U CN215057399U (en) | 2021-07-02 | 2021-07-02 | TBM originating guide platform structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215057399U true CN215057399U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121506736.8U Active CN215057399U (en) | 2021-07-02 | 2021-07-02 | TBM originating guide platform structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215057399U (en) |
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2021
- 2021-07-02 CN CN202121506736.8U patent/CN215057399U/en active Active
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