CN211692481U - Supporting base for assembled lining - Google Patents
Supporting base for assembled lining Download PDFInfo
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- CN211692481U CN211692481U CN202020052591.8U CN202020052591U CN211692481U CN 211692481 U CN211692481 U CN 211692481U CN 202020052591 U CN202020052591 U CN 202020052591U CN 211692481 U CN211692481 U CN 211692481U
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- base
- lining
- groove
- tunnel
- tenon
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Abstract
The utility model provides a supporting base for an assembled lining, which comprises a base and a horizontal bottom beam arranged along the axis direction of a tunnel; the base is of two cuboid structures with symmetrical structures and trapezoidal sections, and the length of the cuboid structures is equal to that of the single-ring full-section assembly type lining structure along the axial direction of the tunnel; a groove for inserting the assembled lining arch ring is arranged above the cuboid structure, and two end parts of each assembled lining arch ring are inserted into the grooves and connected into a whole; the base is positioned by the locking ground anchor; one end of the cuboid structure is provided with a tenon extending towards the axis direction of the tunnel, the other end of the cuboid structure is provided with a mortise inwards towards the axis direction of the tunnel, the shape and the size of the tenon and the mortise are matched, and the two adjacent bases are connected with the mortise in an inserted manner through the tenons at the ends. The utility model discloses the site operation of being convenient for has strengthened the whole atress nature of each base, has improved the overall stability of full section assembled lining cutting structure, has consolidated joint strength.
Description
Technical Field
The utility model relates to an assembled lining cutting specifically relates to a support base for assembled lining cutting.
Background
The drilling and blasting construction method has the characteristics of low requirement on construction site, flexible organization, easy guarantee of construction period and the like, and is a main construction method for railway, highway and subway tunnels. The construction method comprises the steps of drilling, charging, blasting, excavating rock-soil mass, and then performing primary support and secondary lining. Wherein, the secondary lining is usually constructed by adopting a mode of pouring concrete by a site formwork. The problems of irregular reinforcement binding, poor concrete pouring and maintaining quality, difficult filling in the vault concrete pouring process and the like can occur in the construction process of carrying out cast-in-place secondary lining under primary support, and construction diseases such as concrete cracking, block falling, inverted arch cracking and uplifting, insufficient vault lining thickness, insufficient strength, large water seepage amount, even tunnel collapse and the like are generated, so that the engineering progress and the engineering cost are seriously influenced.
Therefore, a fabricated lining structure is provided, and a base which is matched with the fabricated lining structure to play a supporting role needs to be designed.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a support base for assembled lining cutting.
In order to achieve the above object, the present invention provides a supporting base for an assembled lining, the base is disposed below an assembled lining arch ring, and is connected to both ends of the assembled lining arch ring, the base is connected to both ends of a horizontal bottom beam to form a closed semi-circular arch structure, the base and the horizontal bottom beam are arranged along the direction of the tunnel axis, and the base is located by locking a ground anchor; wherein the content of the first and second substances,
the two structurally symmetrical cuboids of the base have trapezoidal sections, and the length of the cuboids is equal to that of the single-ring full-section assembly type lining structure along the axial direction of the tunnel; a groove for inserting the fabricated lining arch ring is formed above the cuboid structure, and two end parts of each fabricated lining arch ring are inserted into the groove and connected into a whole;
cuboid structure one end is equipped with the tenon that extends to tunnel axis direction, and another tip is equipped with the tongue-and-groove to the indent of tunnel axis direction, just the tenon with shape, the size phase-match of tongue-and-groove, adjacent two the base passes through the tip the tenon with the tongue-and-groove plug-in connection is as an organic whole.
Preferably, the cross section of the tenon is in a trapezoidal bump structure, and the bump structure extends outwards from the body of the cuboid structure; the cross-sectional shape of tongue-and-groove is trapezoidal groove structure, groove structure to the body of cuboid structure is inside sunken the tip of cuboid structure forms one-tenth one inwards concave socket groove.
Preferably, the horizontal bottom beam is connected with the reserved steel bars of the base through a steel bar connector.
Preferably, the bottom of the groove is provided with bolt holes for connection of the base and the fabricated lining arch ring.
Preferably, the bolt holes are curved holes.
Preferably, the base is provided with an anchor hole penetrating through the thickness of the base.
Preferably, the base and the horizontal bottom beam are a prefabricated whole.
Compared with the prior art, the utility model discloses at least one kind's beneficial effect as follows has:
the utility model discloses above-mentioned structure has adopted prefabricated pin-connected panel structure, its site operation of being convenient for.
The end parts of the adjacent bases in the structure of the utility model are connected by the tenon, thereby strengthening the whole stress of each base; and is convenient for construction.
The utility model discloses base and horizontal floorbar structure are favorable to the fixed of assembled lining cutting ring and assemble among the above-mentioned structure, have improved the overall stability of full section assembled lining cutting structure.
The utility model has the above structure, the base is connected with above-mentioned horizontal floorbar etc. through locking the ground anchor location, has further consolidated joint strength.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view of a connection between a base and a horizontal bottom beam according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural view of a base and a horizontal bottom beam according to a preferred embodiment of the present invention;
FIG. 3a is an enlarged view of a portion of FIG. 2A;
FIG. 3B is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 3C is a cross-sectional view taken along line C-C of FIG. 3 a;
FIG. 4a is a schematic view of a base anchor in a preferred embodiment of the present invention;
FIG. 4b is a top view of FIG. 4 a;
in the figure: the foundation is 1, the horizontal bottom beam is 2, the tenon is 3, the mortise is 4, the groove is 5, the embedded bolt is 6, the ground locking anchor rod is 7, the embedded PVC pipe is 8, the cast-in-place concrete is 9, and the anchor hole is 10.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Referring to fig. 1, for the structural schematic diagram of a support base for assembled lining of an embodiment of the present invention, base 1 is disposed below the assembled lining arch ring, and is connected to both ends of each assembled lining arch ring, referring to fig. 2, base 1 is connected to both ends of horizontal bottom beam 2, and constitutes a closed semicircular arch structure.
Referring to fig. 1, a base 1 and horizontal bottom beams 2 are uniformly arranged at intervals along the axial direction of a tunnel, and each ring of fabricated lining arch ring is installed on the base 1 and has a lap joint length of 1m with the base 1.
As shown in fig. 2, fig. 3a, fig. 3b and fig. 3c, the base 1 is a rectangular parallelepiped structure with two symmetrical structures and a trapezoidal cross section, and the length of the rectangular parallelepiped structure is equal to the length of the single-ring full-section fabricated lining structure along the tunnel axis direction; the upper side of the cuboid structure is provided with a groove 5 for inserting the assembled lining arch ring, and the two end parts of each assembled lining arch ring are inserted into the grooves 5 of the two cuboid structures.
Referring to fig. 4a, 4b, the base 1 is anchored by a lock; a plurality of anchor holes 10 penetrating through the thickness of the base 1 are formed in the base 1, ground locking anchor rods 7 are inserted into PVC pipes 8 embedded in the ground on the base 1, and cast-in-place concrete 9 is integrated to achieve positioning.
Referring to fig. 1 and 3c, one end of the rectangular structure is provided with a tenon 3 extending towards the axial direction of the tunnel, the other end of the rectangular structure is provided with a mortise 4 recessed towards the axial direction of the tunnel, the shape and size of the tenon 3 and the mortise 4 are matched, and two adjacent bases 1 are connected with the mortise 4 into a whole through the tenon 3 at the end. Base 1 and horizontal floorbar 2 are arranged along tunnel axis direction, will connect gradually through tenon 3 between two adjacent bases 1 each other and connect, connect through tenon 3 and make every base 1 of ring assembled lining cutting arch ring connect as an organic wholely, make stress distribution even, have strengthened the holistic atress nature of base 1.
As a preferable mode, referring to fig. 3c, the cross-sectional shape of the tenon 3 is a trapezoidal bump structure, and the bump structure extends outward from the body of the rectangular parallelepiped structure. The cross-sectional shape of tongue-and-groove 4 is trapezoidal groove structure, and groove structure is sunken to the body of cuboid structure inside, forms the socket groove of indent earlier on at the tip of cuboid structure.
In other preferred embodiments, the horizontal bottom beams 2 are reinforced concrete beams having a cross-section of 30mm x 40mm and a length of 1031.76 mm. The reinforcing bar of horizontal floorbar 2 and the 1 reinforcing bar overlap joint of both sides base are connected as an organic whole through the reservation reinforcing bar of reinforcing bar connector and base 1. The base 1 and the horizontal bottom beam 2 can also be prefabricated in one piece.
In other preferred embodiments, the base 1 is provided with base 1 bolt holes for connection of the base 1 to the fabricated lining arch ring. The distance between the bolt hole of the base 1 and the side edge of the base 1 is 450 mm. In a preferred embodiment, the bolt holes of the base 12 are curved holes with a diameter of 36mm and a radius of curvature of 400 mm. Bolts 6 are embedded in the base 1.
Above-mentioned embodiment, base and horizontal floorbar structure are favorable to the fixed of assembled lining cutting ring and are assembled, have improved the overall stability of full section assembled lining cutting structure.
All the parts used in this document can be standard parts or common technologies, if not detailed, and can be purchased from the market, the specific connection mode of each part can be conventional means such as bolts, rivets and welding, etc., which are mature in the prior art, the machinery, parts and electrical equipment are conventional models in the prior art, and the circuit connection is conventional in the prior art, which is easy to be realized by those skilled in the art, and no specific description is given here.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (7)
1. The utility model provides a support base for assembled lining, the base set up in the below of assembled lining arch ring, with the both ends of assembled lining arch ring are connected, the base is connected in the both ends of horizontal floorbar, constitutes a confined semicircle arch-shaped structure, its characterized in that: the base and the horizontal bottom beam are arranged along the axial direction of the tunnel, and the base is anchored through a ground lock; wherein the content of the first and second substances,
the two structurally symmetrical cuboids of the base have trapezoidal sections, and the length of the cuboids is equal to that of the single-ring full-section assembly type lining structure along the axial direction of the tunnel; a groove for inserting the fabricated lining arch ring is formed above the cuboid structure, and two end parts of each fabricated lining arch ring are inserted into the groove and connected into a whole;
cuboid structure one end is equipped with the tenon that extends to tunnel axis direction, and another tip is equipped with the tongue-and-groove to the indent of tunnel axis direction, just the tenon with shape, the size phase-match of tongue-and-groove, adjacent two the base passes through the tip the tenon with the tongue-and-groove plug-in connection is as an organic whole.
2. A support footing for a fabricated lining as defined in claim 1 wherein: the cross section of the tenon is in a trapezoidal convex block structure, and the convex block structure extends outwards from the body of the cuboid structure; the cross-sectional shape of tongue-and-groove is trapezoidal groove structure, groove structure to the body of cuboid structure is inside sunken the tip of cuboid structure forms one-tenth one inwards concave socket groove.
3. A support footing for a fabricated lining as defined in claim 1 wherein: and the horizontal bottom beam is connected with the reserved steel bars of the base through a steel bar connector.
4. A support footing for a fabricated lining as defined in claim 1 wherein: and the bottom of the groove is provided with a bolt hole for connecting the base with the fabricated lining arch ring.
5. A support footing for a fabricated lining as defined in claim 4 wherein: the bolt holes are bent holes.
6. A support footing for a fabricated lining as defined in claim 1 wherein: the base is provided with an anchor hole penetrating through the thickness of the base.
7. A support footing for a fabricated lining as defined in claim 1 wherein: the base and the horizontal bottom beam are a prefabricated whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020052591.8U CN211692481U (en) | 2020-01-10 | 2020-01-10 | Supporting base for assembled lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020052591.8U CN211692481U (en) | 2020-01-10 | 2020-01-10 | Supporting base for assembled lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211692481U true CN211692481U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020052591.8U Active CN211692481U (en) | 2020-01-10 | 2020-01-10 | Supporting base for assembled lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211692481U (en) |
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2020
- 2020-01-10 CN CN202020052591.8U patent/CN211692481U/en active Active
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