CN210714703U - Shield tunnel lining structure shared by subway and high-speed rail - Google Patents
Shield tunnel lining structure shared by subway and high-speed rail Download PDFInfo
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- CN210714703U CN210714703U CN201921620896.8U CN201921620896U CN210714703U CN 210714703 U CN210714703 U CN 210714703U CN 201921620896 U CN201921620896 U CN 201921620896U CN 210714703 U CN210714703 U CN 210714703U
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Abstract
The utility model discloses a shield tunnel lining structure that subway high-speed railway shared, including subway lining ring, high-speed railway lining ring and reinforced concrete combination carrier bar, reinforced concrete combination carrier bar includes two rows of concrete cushion and i-shaped steel supporting beam that top-down set up, two gomphosis portions about the both ends all are equipped with, all be equipped with curved bolt hole on each gomphosis portion, the connecting portion of subway lining ring and gomphosis portion and the connecting portion of high-speed railway lining ring and gomphosis portion, hoop curved bolt wear to locate curved bolt hole with subway lining ring and high-speed railway lining ring respectively the wrong joint piece dress form sharing shield tunnel structure ring at the upper and lower both ends of reinforced concrete combination carrier bar; a plurality of longitudinal bolt holes are formed in the subway lining ring and the high-speed rail lining ring, the longitudinal bolts penetrate through the longitudinal bolt holes to longitudinally assemble a plurality of shared shield tunnel structure rings to form a shield tunnel lining structure shared by the subway and the high-speed rail, and the subway and high-speed rail lining structure is suitable for subway and high-speed rail dual-purpose tunnels in shield construction.
Description
Technical Field
The utility model relates to a shield tunnel construction's technical field, concretely relates to shield tunnel lining structure of subway high-speed railway sharing.
Background
The rail transit plays an important role in the normal operation of the city, but the construction space of the ground is very precious and limited, and the independent high-speed rail and ground light rail line not only occupies a large space on the ground and the ground, but also has a great influence on the surrounding living and commercial activities, so that the introduction of a part of traffic engineering into the ground is an important trend of the development of modern cities. However, the dense traffic lines in cities are high, the intersection and the parallel of a plurality of underground lines can be avoided, when the line selection of the subway and the high-speed rail is parallel at a small clear distance, the subway and the high-speed rail overlapping type shield tunnel is adopted as an effective solution, and particularly in projects of parallel running through rivers and the like of a plurality of lines, the subway and the high-speed rail overlapping type shield tunnel has the advantages of reducing investment, shortening construction period, improving underground space utilization rate, avoiding multiple disturbances on stratums and the like.
The shield method has the advantages of safety, reliability, high construction speed, mature technology, small influence on the surrounding environment and the like, and is the preferred construction method in the construction of urban rail transit. After the self-shield tunneling machine tunneling technology is introduced into China, through digestion and absorption for over ten years, China becomes a strong country for manufacturing and technology of shield related equipment, and according to actual requirements, different shield tunneling machines such as an elliptical shield, a horseshoe shield, a rectangular shield and the like have appeared in sequence. Therefore, in the foreseeable future, the overlapped shield tunnel of the high-speed rail and the subway can be widely applied to urban rail transit construction, and aiming at the requirement, the overlapped shield tunnel building structure applicable to the common use of the highway and the railway is designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shield tunnel lining structure of subway high-speed railway sharing can realize reducing with subway and high-speed railway double-line unification under the sectional condition of major diameter tunnel to solve the current problem of how letting a shield tunnel current railcar and high-speed railway vehicle respectively.
The purpose of the utility model is realized through the following technical scheme:
a shield tunnel lining structure shared by subways and high-speed railways comprises a subway lining ring, a high-speed railway lining ring and a steel-concrete combined bearing beam, wherein the steel-concrete combined bearing beam comprises two rows of concrete cushion layers and I-shaped steel supporting beams which are arranged from top to bottom, the left end and the right end of each I-shaped steel supporting beam are respectively provided with an upper embedding part and a lower embedding part, each embedding part, a connecting part of the subway lining ring and the embedding part and a connecting part of the high-speed railway lining ring and the embedding part are respectively provided with a bent bolt hole, and annular bent bolts penetrate through the bent bolt holes to splice the subway lining ring and the high-speed railway lining ring at the upper end and the lower end of the steel-concrete combined bearing beam in a staggered mode to form a;
and a plurality of longitudinal bolt holes are formed in the subway lining ring and the high-speed rail lining ring, and the longitudinal bolts penetrate through the longitudinal bolt holes to longitudinally assemble a plurality of shared shield tunnel structure rings to form a shield tunnel lining structure shared by the subway and the high-speed rail.
Furthermore, the subway lining ring is composed of 4 first subway ring segments and 1 second subway ring segment, wherein 1 second subway ring segment and 4 first subway ring segments are sequentially connected, the second subway ring segment is arranged at the left side embedded part of the upper layer, and one of the first subway ring segments is arranged at the right side embedded part of the upper layer.
Further, the high-speed rail lining ring is composed of 8 first high-speed rail ring pipe pieces and 1 second high-speed rail ring pipe piece, wherein 1 second high-speed rail ring pipe piece and 8 first high-speed rail ring pipe pieces are sequentially connected, the second high-speed rail ring pipe pieces are installed in the right side embedding portion of the lower layer, and one of the first subway ring pipe pieces is installed in the left side embedding portion of the lower layer.
Further, all set up to 2 rows of hoop bolt holes on the longitudinal direction of first subway ring section of jurisdiction, second subway ring section of jurisdiction, first high-speed railway ring section of jurisdiction and second high-speed railway ring section of jurisdiction, every row of 2 hoop bolt holes, the hoop bolt passes hoop bolt hole connects into subway lining ring, connects into high-speed railway lining ring first high-speed railway ring section of jurisdiction and second subway ring section of jurisdiction.
Further, the outer radius R1 of the subway lining ring is 3m, the thickness is 0.3m, the width is 1.5m, the central angle α 2 of the first subway ring segment is 60 ° 5 '0 ", and the central angle α 1 of the second subway ring segment is 40 ° 3' 20".
Furthermore, three longitudinal bolt holes are formed in the first subway ring pipe piece, one longitudinal bolt hole is formed in the second subway ring pipe piece, the central angle theta 1 corresponding to the adjacent longitudinal bolt holes in the subway lining ring is 20 degrees 1'40 degrees, and the angle between each bolt hole and the lining edge is half of theta 1.
Further, the outer radius R2 of the high-speed rail lining ring is 5m, the thickness is 0.5m, and the width is 1.5m, the central angle β 2 of the first high-speed rail ring segment is 36 ° 49'28 ", and the central angle β 1 of the second high-speed rail ring segment is 12 ° 16' 29".
Furthermore, three longitudinal bolt holes are formed in the first high-speed ring pipe piece, one longitudinal bolt hole is formed in the second high-speed ring pipe piece, the central angle theta 2 corresponding to the adjacent longitudinal bolt on the high-speed rail lining ring is 12 degrees, 16'29.3 degrees, and the angle between the bolt and the lining edge is half of theta 2.
Further, the width of the I-shaped steel supporting beam is 0.75 m.
And further, pouring and connecting the concrete cushion layer and the I-shaped steel supporting beam to form the reinforced concrete combined bearing beam.
The utility model has the advantages that:
1) if the existing single circular large-section shield tunnel is used for both subway and high-speed rail, the diameter of a shield machine needs to reach 14m, and the overlarge diameter not only causes the torque of a cutter head of the shield machine to be increased sharply, but also obviously increases the thickness of tunnel segments, so that the excavation amount is increased greatly, and the construction cost is increased in multiples; the utility model discloses a shield tunnel lining structure of subway high-speed railway sharing adopts the radius to overlap for 5m and 3 m's tunnel mutually, has reduced under the sectional condition of major diameter tunnel with subway and high-speed railway double-line unification, has not only improved the reliability of structure, less disturbance to the country rock, the moment of torsion of shield structure machine when reducing the construction again, has reduced subway ring section of jurisdiction and high-speed railway ring section of jurisdiction thickness, has practiced thrift cost and engineering time, has great realistic meaning to urban rail transit construction.
2) Although the number of the ring pipe pieces of the subway ring and the high-speed rail ring is only 2, the staggered joint assembly of the ring pipe pieces can be realized through the ring pipe pieces of 2 types, the longitudinal rigidity of the lining structure is improved, the joints are tightly combined, and the waterproof effect is better; the steel-concrete combined bearing beam enables the shared shield tunnel structure to be integrated through the embedding of the steel-concrete combined bearing beam and a subway lining ring or a high-speed rail lining ring and the cushion concrete, and the annular bent bolts are arranged on the contact surfaces of the annular upper I-shaped steel supporting beam and the annular duct pieces, so that the shared shield tunnel structure has the advantages of high strength, light weight and the like.
3) The utility model discloses only need once only through excavation, the structure just can once only be assembled and take shape, can obtain the utility model discloses a dual-purpose eclipsed form shield tunnel masonry structure of subway high-speed railway compares with disconnect-type small cross section shield tunnel, does not have the intermediate layer soil between the disconnect-type shield tunnel, the utility model discloses a structural integrity is stronger, to surrounding soil layer disturbance littleer, the construction risk is littleer, helps controlling ground settlement better, guarantees the safety of peripheral structure.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view taken along line 1-1 of FIG. 1;
fig. 3 is a schematic structural view of an i-shaped steel support beam according to the present invention;
in the figure, 1-subway lining ring, 101-first subway ring segment, 102-second subway ring segment, 2-high-speed railway lining ring, 201-first high-speed railway ring segment, 202-second high-speed railway ring segment, 3-steel-concrete combined bearing beam, 301-concrete cushion layer, 302-I-shaped steel supporting beam, 303-embedded part, 4-bent bolt hole, 5-longitudinal bolt hole and 6-annular bolt hole.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
example 1
Referring to fig. 1, a shield tunnel lining structure shared by subways and high-speed railways includes a subway lining ring 1, a high-speed railway lining ring 2 and a reinforced concrete combination carrier beam 3, wherein the reinforced concrete combination carrier beam 3 includes two rows of concrete cushion layers 301 and an I-shaped steel support beam 302 arranged from top to bottom, the left end and the right end of the I-shaped steel support beam 302 are respectively provided with an upper embedding part 303 and a lower embedding part 303, each embedding part 303, a connecting part of the subway lining ring 1 and the embedding part 303, and a connecting part of the high-speed railway lining ring 2 and the embedding part 303 are respectively provided with a bent bolt hole 4, and a circumferential bent bolt is inserted into the bent bolt hole 4 to respectively stagger-joint the subway lining ring 1 and the high-speed railway lining ring 2 at the upper end and the lower end of the reinforced concrete combination carrier beam;
a plurality of longitudinal bolt holes 5 are formed in the subway lining ring 1 and the high-speed rail lining ring 2, and longitudinal bolts penetrate through the longitudinal bolt holes 5 to longitudinally assemble a plurality of shared shield tunnel structure rings to form a shield tunnel lining structure shared by subway and high-speed rail.
The utility model discloses a steel-concrete combination carrier bar 3 has both played the effect of connecting ground hoop and high-speed railway ring, has also played the effect as subway basis, the utility model discloses a shield tunnel lining structure of subway high-speed railway sharing adopts subway lining ring 1 and high-speed railway lining ring 2 to overlap mutually, has reduced under the sectional condition of major diameter tunnel with subway and high-speed railway double-line unification, has not only improved the reliability of structure, less disturbance to the country rock, the moment of torsion of shield structure machine when reducing the construction again, has reduced subway ring section of jurisdiction and high-speed railway ring section of jurisdiction thickness, has practiced thrift cost and engineering time, has great realistic meaning to urban rail transit construction.
Referring to fig. 1 to 3, the subway lining ring 1 is composed of 4 first subway ring segments 101 and 1 second subway ring segment 102, wherein 1 second subway ring segment 102 and 4 first subway ring segments 101 are sequentially connected, the second subway ring segment 102 is installed at the upper left side engaging portion 303, and one first subway ring segment 101 is installed at the upper right side engaging portion 303.
High-speed railway lining ring 2 comprises 8 first high-speed railway ring sections 201 and 1 second high-speed railway ring section of jurisdiction 202, 1 second high-speed railway ring section of jurisdiction 202 and 8 first ground high-speed railway ring section of jurisdiction connects gradually, second high-speed railway ring section of jurisdiction 202 is installed in lower floor's right side gomphosis portion 303, one of them first ground railway ring section of jurisdiction 101 is installed in lower floor's left side gomphosis portion 303.
Preferably, the concrete cushion 301 and the i-shaped steel support beam 302 are cast to connect the reinforced concrete composite load-bearing beam 3.
Although the types of the ring pipe pieces of the subway lining ring 1 and the high-speed rail lining ring 2 are only 2, the staggered joint assembly of the ring pipe pieces and the steel-concrete combined bearing beam 3 can be realized through the respective 2 ring pipe pieces, the longitudinal rigidity of the lining structure is improved, the joints are tightly combined, and the waterproof effect is better; the steel-concrete combined bearing beam 3 enables the shared shield tunnel structure ring to be a whole through the embedding of the steel-concrete combined bearing beam and the subway lining ring 1 or the high-speed rail lining ring 2 and the cushion concrete, and the annular bending bolts are arranged on the contact surface of the annular upper I-shaped steel supporting beam and the annular pipe piece, so that the shared shield tunnel structure ring has the advantages of high strength, light weight and the like.
All set up to 2 rows of hoop bolt holes 6 on the longitudinal direction of first subway ring section of jurisdiction 101, second subway ring section of jurisdiction 102, first high-speed railway ring section of jurisdiction 201 and second high-speed railway ring section of jurisdiction 202, every row of 2 hoop bolt holes 6, the hoop bolt passes hoop bolt hole 6 connects into subway lining ring 1, connects into high-speed railway lining ring 2 with first high-speed railway ring section of jurisdiction 101 and second subway ring section of jurisdiction 102, hoop bolt hole 6.
The utility model discloses a hoop bolt hole 6 is total 32, and the cooperation through hoop bolt and hoop bolt is pieced together subway lining cutting ring 1 and high-speed railway lining cutting ring 2 staggered joint in the upper and lower both sides of reinforced concrete combination carrier bar 3.
Referring to fig. 1, the outer radius R1 of the metro lining ring 1 is 3m, the thickness is 0.3m, and the width is 1.5m, the central angle α 2 of the first metro ring segment 101 is 60 ° 5 '0 ", and the central angle α 1 of the second metro ring segment 102 is 40 ° 3' 20".
Referring to fig. 1, three longitudinal bolt holes 5 are formed in the first subway ring segment 101, one longitudinal bolt hole 5 is formed in the second subway ring segment 102, a central angle θ 1 corresponding to the adjacent longitudinal bolt hole 5 on the subway lining ring 1 is 20 ° 1'40 ", and angles between bolt holes and a lining edge are half of θ 1.
Longitudinal bolts penetrate through the longitudinal bolt holes 5 to connect the longitudinal subway lining rings 1.
Referring to fig. 1, the outer radius R2 of the high-speed rail lining ring 2 is 5m, the thickness is 0.5m, and the width is 1.5m, the central angle β 2 of the first high-speed rail ring segment 201 is 36 ° 49'28 ", and the central angle β 1 of the second high-speed rail ring segment 202 is 12 ° 16' 29".
Referring to fig. 1, three longitudinal bolt holes 5 are formed in the first high-speed ring segment, one longitudinal bolt hole 5 is formed in the second high-speed ring segment 202, a central angle θ 2 corresponding to an adjacent longitudinal bolt on the high-speed rail lining ring 2 is 12 ° 16'29.3 ", and angles between the bolt and the lining edge are half of θ 2.
Longitudinal bolts pass through the longitudinal bolt holes 5 to connect the longitudinal high-speed rail lining rings 2.
The number of the longitudinal bolts is 39.
The width of the I-shaped steel supporting beam 302 is 0.75m, and the combined bearing beam 3 made of steel and concrete is integrated through the embedding of the two sides of the I-shaped steel supporting beam 302 at the lower part and the lining ring and the cushion concrete.
The utility model discloses an one end of second subway ring section of jurisdiction 102 links to each other with one of them first subway ring section of jurisdiction 101, and the other end links to each other with reinforced concrete combination carrier beam 3, and the one end of second high-speed railway ring section of jurisdiction 202 links to each other with one of them first high-speed railway ring section of jurisdiction 201, and the other end also links to each other with reinforced concrete combination carrier beam 3. As shown in fig. 1, when the next common shield tunnel structure ring is assembled, the second metro ring segment 102 is placed at the lower right side of the lining ring, and the second high-speed metro ring segment 202 is placed at the upper left side of the high-speed metro lining ring 2, so that the staggered joint assembly between the segment rings can be realized.
If the existing single circular large-section shield tunnel is used for both subway and high-speed rail, the diameter of a shield machine needs to reach 14m, and the overlarge diameter not only causes the torque of a cutter head of the shield machine to be increased sharply, but also obviously increases the thickness of tunnel segments, so that the excavation amount is increased greatly, and the construction cost is increased in multiples; the utility model discloses a shield tunnel lining structure that subway high-speed railway is shared adopts the radius to overlap for 5m and 3 m's tunnel mutually, has reduced under the sectional condition of major diameter tunnel with subway and high-speed railway double-line unification, has not only improved the reliability of structure, less disturbance to the country rock, the moment of torsion of shield structure machine when reducing the construction again, has reduced subway ring section of jurisdiction and high-speed railway ring section of jurisdiction thickness, has practiced thrift cost and engineering time.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. The utility model provides a shield tunnel lining structure of subway high-speed railway sharing which characterized in that: the combined bearing beam comprises a subway lining ring (1), a high-speed rail lining ring (2) and a steel-concrete combined bearing beam (3), wherein the steel-concrete combined bearing beam (3) comprises two rows of concrete cushion layers (301) and I-shaped steel supporting beams (302) which are arranged from top to bottom, the left end and the right end of each I-shaped steel supporting beam (302) are respectively provided with an upper embedding part and a lower embedding part (303), each embedding part (303), a connecting part of the subway lining ring (1) and the embedding part (303) and a connecting part of the high-speed rail lining ring (2) and the embedding part (303) are respectively provided with a bent bolt hole (4), and a circumferential bent bolt penetrates through the bent bolt hole (4) to assemble the subway lining ring (1) and the high-speed rail lining ring (2) at the upper end and the lower end of the steel-concrete combined bearing beam (3) in;
a plurality of longitudinal bolt holes (5) are formed in the subway lining ring (1) and the high-speed rail lining ring (2), and the longitudinal bolts penetrate through the longitudinal bolt holes (5) to longitudinally assemble a plurality of shared shield tunnel structure rings to form a shield tunnel lining structure shared by the subway and the high-speed rail.
2. The shield tunnel lining structure shared by the subway and the high-speed rail according to claim 1, wherein: subway lining ring (1) comprises 4 first subway ring segments (101) and 1 second subway ring segments (102), 1 second subway ring segments (102) and 4 first subway ring segments (101) connect gradually, second subway ring segments (102) are installed in upper left side gomphosis portion (303), one of them first subway ring segments (101) are installed in upper right side gomphosis portion (303).
3. The shield tunnel lining structure shared by the subway and the high-speed rail according to claim 2, wherein: high-speed railway lining ring (2) comprise 8 first high-speed railway ring section of jurisdiction (201) and 1 second high-speed railway ring section of jurisdiction (202), 1 second high-speed railway ring section of jurisdiction (202) and 8 first high-speed railway ring section of jurisdiction (201) connects gradually, second high-speed railway ring section of jurisdiction (202) is installed in lower floor right side gomphosis portion (303), one of them first subway ring section of jurisdiction (101) is installed in lower floor left side gomphosis portion (303).
4. The shield tunnel lining structure shared by subway high-speed rails according to claim 2 or 3, characterized in that: all set up to 2 rows of hoop bolt holes (6) on the longitudinal direction of first subway ring section of jurisdiction (101), second subway ring section of jurisdiction (102), first high-speed railway ring section of jurisdiction (201) and second high-speed railway ring section of jurisdiction (202), every row 2 hoop bolt holes (6), hoop bolt pass hoop bolt hole (6) connect into subway lining ring (1) with first subway ring section of jurisdiction (101) and second subway ring section of jurisdiction (102), connect into high-speed railway lining ring (2) with first high-speed railway ring section of jurisdiction and second high-speed railway ring section of jurisdiction (202).
5. The shield tunnel lining structure shared by subway high-speed railways according to claim 2, wherein the outer radius R1 of said subway lining ring (1) is 3m, the thickness is 0.3m, the width is 1.5m, the central angle α 2 of said first subway ring segment (101) is 60 degrees, 5 '0 degrees, and the central angle α 1 of said second subway ring segment (102) is 40 degrees, 3' 20 degrees.
6. The shield tunnel lining structure shared by the subway and the high-speed rail according to claim 2, wherein: three longitudinal bolt holes (5) are formed in the first subway ring segment (101), one longitudinal bolt hole (5) is formed in the second subway ring segment (102), a central angle theta 1 corresponding to the adjacent longitudinal bolt hole (5) in the subway lining ring (1) is equal to 20 degrees 1'40 degrees, and the distance between each bolt hole and the lining edge is half of the distance theta 1.
7. The shield tunnel lining structure shared by subway high-speed railways according to claim 3, wherein the outer radius R2 of said high-speed railway lining ring (2) is 5m, the thickness is 0.5m, the width is 1.5m, the central angle β 2 of said first high-speed railway ring segment (201) is 36 degrees 49'28 degrees, and the central angle β 1 of said second high-speed railway ring segment (202) is 12 degrees 16'29 degrees.
8. The shield tunnel lining structure shared by the subway and the high-speed rail according to claim 3, wherein: three longitudinal bolt holes (5) are formed in the first high-speed ring pipe piece, one longitudinal bolt hole (5) is formed in the second high-speed ring pipe piece (202), the central angle theta 2 corresponding to the adjacent longitudinal bolt on the high-speed rail lining ring (2) is 12 degrees, 16'29.3 degrees, and the angle between the bolt and the lining edge is half of theta 2.
9. The shield tunnel lining structure shared by the subway and the high-speed rail according to claim 1, wherein: the width of the I-shaped steel supporting beam (302) is 0.75 m.
10. The shield tunnel lining structure shared by the subway and the high-speed rail according to claim 1, wherein: and the concrete cushion (301) and the I-shaped steel supporting beam (302) are cast to be connected into the reinforced concrete combined bearing beam (3).
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| CN201921620896.8U CN210714703U (en) | 2019-09-26 | 2019-09-26 | Shield tunnel lining structure shared by subway and high-speed rail |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828013A (en) * | 2020-07-21 | 2020-10-27 | 中铁隧道局集团有限公司 | Ground shield tunnel experiment entity model and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828013A (en) * | 2020-07-21 | 2020-10-27 | 中铁隧道局集团有限公司 | Ground shield tunnel experiment entity model and construction method thereof |
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