CN213627606U

CN213627606U - Subway shield tunnel damping segment ring suitable for differential settlement and high-intensity earthquake areas

Info

Publication number: CN213627606U
Application number: CN202022864938.1U
Authority: CN
Inventors: 范建国; 王东元; 宋仪; 石龙; 李敬; 李继祥
Original assignee: China Railway Liuyuan Group Co Ltd
Current assignee: China Railway Liuyuan Group Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-06
Anticipated expiration: 2030-12-03

Abstract

The utility model provides a subway shield tunnel damping pipe ring suitable for difference subsides and high intensity earthquake district for solve the difference and subside or the structural stress that seismic wave arouses concentrates, leads to tunnel structure to take place to warp the problem of damaging. The damping pipe piece ring comprises a groove-shaped ring beam pipe piece ring, a damper and a liner steel barrel; the damper is connected with the groove-shaped ring beam segment rings positioned on the left side and the right side of the damper through damper connecting bolts, the liner steel barrel is arranged on the inner side of the damper and is tightly attached to the damper; the damper is formed by connecting a left loading plate, an inner core positioned in the middle and a right loading plate through a damper spring mechanism. The utility model discloses make shield structure subway tunnel structure in difference settlement zone territory or high intensity earthquake region have stronger deformation self-control and adaptation stratum-structure relative deformability to reduce and eliminate the structural stress concentration that the deformation brought even, avoid structural deformation to damage, it is convenient to make the installation, and the practicality is strong.

Description

Subway shield tunnel damping segment ring suitable for differential settlement and high-intensity earthquake areas

Technical Field

The utility model belongs to the technical field of the shield tunnel, in particular to be suitable for difference to subside and subway shield tunnel damping pipe ring in high intensity earthquake district.

Background

The subway is one of the main means for solving urban public transport. However, in the long-term operation process of the existing subway, the longitudinal uneven settlement phenomenon of the shield subway tunnel occurs under the influence of factors such as uneven stratum, uneven load, large-area underground water level descending and the like, and especially, the general regional stratum settlement exists in coastal soft soil areas in east of China, which can cause uneven settlement at different structures. China is also a country with frequent earthquake disasters, and the shield subway tunnel structure in a high-intensity earthquake area is deformed and cracked due to earthquake waves. The deformation of the shield tunnel segment structures slightly influences the comfort of train operation, and the segment structures and peripheral buildings are damaged, even casualty accidents can occur, so that the normal operation of subways is influenced. The reason for this is that the subway segment structure is buried deeply, and it must be ensured that the ring direction and the longitudinal direction have enough rigidity to resist the pressure of water and soil, but the segment structure does not have enough deformation self-adjusting performance. Differential settlement or seismic waves can cause the formation to move, thereby causing the structure built into the formation to move. This formation-structure relative movement can cause stress concentrations that can lead to failure of the tunnel structure. Therefore, the damage of the segment structure of the shield subway tunnel caused by uneven settlement or high-intensity earthquake is reduced or even eliminated, and the annular flexible segment structure which is provided with one or more rings allowing deformation is the optimal scheme for solving the problem. Through the flexible deformation of a ring or a plurality of ring segments, the whole subway segment structure and the structure at the joint of the subway tunnel and the subway station can move along with the movement of the stratum caused by differential settlement or earthquake, but the overall structure performance of the subway segment structure is not influenced. The novel segment structure is called as a damping segment of a subway shield tunnel. The damping pipe piece has the rigidity and the waterproof capability of the conventional pipe piece so as to resist the pressure of water and soil in the stratum while allowing deformation, and the safe operation of the shield subway tunnel is ensured.

At present, the annular joint of the subway shield tunnel segment mainly adopts a bolt joint (comprising a bent bolt joint, a straight bolt joint and a combined bolt joint), the capacity of adapting to stratum deformation is very poor, the concrete segment can be cracked under the condition of small differential settlement, even the joint is caused to be permanently damaged, the waterproof performance and the integrity of the shield tunnel are influenced, and particularly, the phenomenon is easier to occur in the subway station end wall and the tunnel connection area which are easy to generate differential settlement. In a high-intensity earthquake area, strong earthquake waves can cause stratum deformation, and structural pipe pieces without self-adaptive performance can resist the deformation, so that overlarge stress concentration in a structure can be caused, and the structure is damaged. The deformation adaptive damping pipe piece allows the pipe piece to displace to a certain degree along with the stratum, so that the structural damage caused by differential settlement or earthquake can be sufficiently eliminated to be intangible.

Damping section of jurisdiction ring structure on the basis of fully understanding deformation structure damage mechanism and reason, through the combined action of different structural component, solved these problems, simultaneously because not all reform transform into the damping section of jurisdiction with all sections of jurisdiction, can effectual control engineering cost. The utility model discloses a damping section of jurisdiction is articulated convenient with existing conventional subway shield tunnel section of jurisdiction, adapts to mainstream subway shield construction process, and the practicality is very strong, expects to obtain promoting in subway shield tunnel to the disaster prevention that can be expected to china subtracts the disaster also has great contribution.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the structural movement caused by differential settlement or seismic waves can cause stress concentration and cause deformation and damage of a tunnel structure, the embodiment of the utility model provides a subway shield tunnel damping pipe ring suitable for differential settlement and a high-intensity seismic area, and the damping pipe ring is installed to ensure that the shield subway tunnel structure in the differential settlement area or the high-intensity seismic area has stronger deformation adaptability, thereby reducing or even eliminating the structural stress concentration caused by deformation and avoiding structural damage; the utility model discloses a damping pipe piece ring has with conventional shield subway tunnel section of jurisdiction structure supporting characteristics, and the construction is convenient, does not need to use other equipment separately, only needs to jump the dress at installation conventional section of jurisdiction in-process the utility model discloses a pipe piece ring can, the practicality is very strong.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a subway shield tunnel damping pipe ring suitable for differential settlement and high-intensity earthquake areas, which comprises a groove-shaped ring beam pipe ring, a damper and a liner steel drum; the damper is connected with the groove-shaped ring beam pipe sheet rings positioned on the left side and the right side of the damper through damper connecting bolts, the liner steel barrel is arranged on the inner side of the damper, and the liner steel barrel is tightly attached to the damper; the damper is formed by connecting a left loading plate, an inner core positioned in the middle and a right loading plate through a damper spring mechanism; the damper connecting bolts are arranged on the left loading plate and the right loading plate.

Preferably, the inner core is formed by alternately arranging a plurality of inner core rubber layers and inner core steel gaskets, the inner core steel gasket is arranged on the outermost side of the inner core, and damping spring mounting holes are formed in the inner core steel gaskets and the inner core rubber layers.

Preferably, the damper spring mechanism consists of a damping spring, an anchor head, a buckle and a damping spring gasket; the damping spring is installed in the damping spring installation hole, two ends of the damping spring are fixedly connected with the left loading plate and the right loading plate through the buckles and the anchor heads respectively, and the left loading plate and the right loading plate are provided with reserved holes respectively.

Preferably, a waterproof rubber strip is arranged on the outer side of the inner core.

Preferably, the groove-shaped ring beam pipe piece ring is formed by connecting a plurality of arc-shaped groove-shaped ring beam pipe pieces through ring beam connecting bolts, and the damper is composed of a plurality of arc-shaped damper sections.

Preferably, the groove-shaped ring beam pipe piece ring is formed by connecting three or four single arc groove-shaped ring beam pipe pieces with central angles of 120 degrees or 90 degrees through the ring beam connecting bolts, the width of each groove-shaped ring beam pipe piece is one third to one half of that of a conventional pipe piece, the thickness of each groove-shaped ring beam pipe piece is smaller than that of the conventional pipe piece, and the thickness of the rib beams around each groove-shaped ring beam pipe piece is 15-20 cm.

As preferred, arc cell type ring beam section of jurisdiction passes through connecting bolt with subway shield tunnel's conventional section of jurisdiction to be connected, arc cell type ring beam section of jurisdiction with be equipped with the waterproof pad of second between the conventional section of jurisdiction, arc cell type ring beam section of jurisdiction with be equipped with first waterproof pad between the attenuator.

Preferably, the damper is composed of three or four single blocks of the arc-shaped damper segments with central angles of 120 ° or 90 °.

Preferably, the thickness of the damper is 20-50cm, and the monoblock arc damper section is provided with at least 2 damper spring mechanisms.

Preferably, the inner diameter and the outer diameter of the left side loading plate and the right side loading plate are the same as those of a conventional segment ring, and the thickness of the left side loading plate and the right side loading plate is 2.5-3.5 cm.

Preferably, the inner container steel barrel consists of an inner container and a waterproof and anti-skid gasket arranged on the outer side of the inner container, and the inner container is formed by connecting a plurality of arc-shaped inner container sections through reverse bolts of the inner container.

Preferably, the inner container is formed by connecting three or four single arc-shaped inner container sections with central angles of 120 degrees or 90 degrees through the reverse bolts of the inner container.

Preferably, the tail end of the single arc-shaped inner container section is provided with a flange plate with a bolt hole; the thickness of the single arc-shaped inner container section is 2.5-3.5 cm; the length of the flange plate is 10-15 cm.

The utility model discloses following beneficial effect has:

the utility model provides a subway shield tunnel damping pipe sheet ring suitable for difference settlement and high-intensity earthquake areas mainly comprises three parts, namely a groove-shaped ring beam pipe sheet ring, a damper and a liner steel drum, wherein each main part also comprises other auxiliary structural parts to ensure the expected function, and the system is combined together to form a shield subway tunnel damping pipe sheet ring structure which can adapt to difference deformation and shock resistance, has self-adaptive deformability and also has certain rigidity, waterproof and water-stopping capabilities; the structure also has the function of being adjustable under the condition of not interrupting the operation in the subway operation process. Therefore, through the installation the utility model discloses a damping section of jurisdiction ring structure for shield subway tunnel structure in difference settlement zone or high intensity seismic region has stronger deformation adaptability, thereby reduces and eliminates the structural stress concentration that the deformation brought even, avoids structural damage. The utility model discloses a damping section of jurisdiction loop constructs the structure have with the supporting characteristics of conventional shield subway tunnel section of jurisdiction structure, it is convenient to be under construction, does not need to use other equipment separately, only jumps the dress at installation conventional section of jurisdiction in-process the utility model discloses section of jurisdiction loop constructs can, the practicality is very strong, expects to obtain promoting in subway shield tunnel to the disaster prevention that subtracts the disaster to china also has great contribution. The utility model discloses there is following beneficial effect:

(1) the ring beam duct piece and the damper are manufactured in a factory and assembled together through the connecting parts on the spot, so that the quality of a finished product of the damping duct piece ring is ensured, the engineering safety is ensured, and the engineering progress can be improved. The utility model discloses the production installation of damping tube piece ring also need not extra equipment, and the manufacture factory of conventional section of jurisdiction has sufficient production and assembly capacity. Therefore, the damping pipe piece ring has the characteristics of convenience in manufacturing, easiness in quality guarantee and capability of being in high butt joint with a conventional pipe piece.

(2) The main structure of the damper comprises two side loading plates, a damping spring, a rubber layer, a steel base plate, a waterproof adhesive tape, a buckle and the like. Two ends of the damping spring are respectively anchored on the loading plates at two sides, a plurality of rubber layers are arranged in the loading plates, adjacent rubber layers are separated and supported by steel backing plates, and waterproof rubber strips are arranged on the outer side surfaces of the inner cores. Therefore, the damping duct piece ring of the utility model has the functions of self-waterproof and water-stop.

(3) And connecting bolts are arranged on the loading plates on the two sides of the damper in the circumferential direction, and the damper and the ring beam duct piece are connected through the bolts to form an integral structure. After the loading plate, the rubber layer, the steel gasket and the damping spring are initially assembled, the damping spring is hooked by the tensioning rod, and is tensioned by means of a jack, when the tensioning force meets the specified requirement, the buckling clamp is installed, the jack is removed, the jack shrinks along with the spring, and under the action of the spring tension, the rubber layer and the steel gasket are tightly attached together to form a composite structure which can deform and has rigidity. Therefore, the damper contained in the damping pipe ring of the utility model has certain rigidity and flexible characteristic, and can deform in a self-adaptive manner.

(4) And transporting the installed damping duct pieces to a subway construction site, and transporting the damping duct pieces and the conventional duct pieces to a subway shield machine together. And (5) continuing construction, installing the conventional duct piece, and continuing to install the damping duct piece by using the shield machine after installing the damping duct piece. Therefore the utility model discloses damping section of jurisdiction transportation and conventional section of jurisdiction do not have the difference, have the convenient characteristic of transportation.

(5) Installing the inner container steel barrel, connecting the three prefabricated inner container sections through reverse bolts, and arranging a waterproof and resistance-increasing rubber pad (a waterproof anti-skidding gasket) on the outer surface of the inner container, wherein the size of the rubber pad is the same as that of the outer surface of the inner container. Adjusting the attaching tightness degree of the liner steel barrel and the damping pipe ring by adjusting the reverse bolt of the liner; the rubber pad is tightly wrapped and extruded by the liner and the damping pipe piece ring structure, has waterproof and anti-skidding effects, and simultaneously allows deformation to a certain degree by utilizing the mechanical property of rubber. Therefore, the damping tube sheet ring has double safety characteristics in the aspects of water resistance, rigidity maintenance, deformation adaptation and the like.

(6) Utilize the ring beam section of jurisdiction to link together damping section of jurisdiction and conventional section of jurisdiction, this construction step does not have big difference with the conventional section of jurisdiction of installation, consequently does not need extra equipment, and constructor also very easy to operate. And after the damping pipe piece is installed, continuously installing the conventional pipe piece. Therefore, the utility model discloses damping section of jurisdiction ring has the convenient characteristic of site operation.

(7) After the installation of whole section of jurisdiction is accomplished, along with time lapse, the difference subsides and slowly takes place, and damping spring and rubber pad in the attenuator are because have elastic deformation ability, and the trend that consequently can adapt to the difference and subside takes place to warp, nevertheless can not cause structural damage. In a high-intensity earthquake area, the principle is similar, but larger structural deformation caused by an earthquake can be adapted by installing more damping pipes, and huge loss caused by structural damage is avoided. Therefore, the damping pipe ring of the utility model not only has the characteristics of disaster prevention and reduction, but also saves cost for a long time.

(8) The inner container steel barrel can be adjusted as required in the subway operation process, and the combination degree of the inner container steel barrel and the damping pipe sheet ring can be tight and loose. Therefore, the double-function underground shield segment structure has double functions, can be used as an inner support structure of the damping tube segment ring to resist external water and soil pressure together, and can also be properly adjusted to follow the differential settlement of the stratum or deform together with the damping tube segment ring under the action of an earthquake, so that the whole underground shield segment structure has stronger deformation adaptability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a damping tube sheet ring structure of a subway shield tunnel suitable for differential settlement and high-intensity earthquake areas in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a groove-shaped ring beam tube sheet ring in a damping tube sheet ring of a subway shield tunnel suitable for differential settlement and high-intensity earthquake areas according to an embodiment of the present invention;

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a sectional view taken along line A-A';

FIG. 5 is a sectional view taken along line B-B';

FIG. 6 is a cross-sectional view taken along line C-C';

FIG. 7 is a schematic diagram of a three-dimensional structure of a steel cap;

fig. 8 is a schematic structural view of a damper in a damping pipe segment ring of a subway shield tunnel suitable for differential settlement and high-intensity earthquake areas according to an embodiment of the present invention;

FIG. 9 is a plan view of FIG. 7;

FIG. 10 is a cross-sectional view taken along line D-D';

FIG. 11 is a cross-sectional view taken along line E-E';

FIG. 12 is a sectional view taken along line F-F';

FIG. 13 is an exploded view of an arcuate damper section of an embodiment of the damper of the present invention;

fig. 14 is a schematic structural view of an inner core in an arc-shaped damper section in a damper in a damping tube sheet ring of a subway shield tunnel suitable for differential settlement and high-intensity seismic areas according to an embodiment of the present invention;

FIG. 15 is a diagram of a damper spring mechanism;

FIG. 16 is a snap-fit construction of the damper spring mechanism;

fig. 17 is a schematic structural view of an inner container steel drum in a damping duct piece ring of a subway shield tunnel suitable for differential settlement and high-intensity earthquake areas according to an embodiment of the present invention;

FIG. 18 is a plan view of FIG. 17;

FIG. 19 is a sectional view taken along line G-G';

FIG. 20 is a sectional view taken along line H-H';

fig. 21 is a schematic view of the connection between the damping duct pieces and the conventional duct pieces of the subway shield tunnel in the embodiment of the present invention, which is suitable for differential settlement and high-intensity earthquake areas;

FIG. 22 is a sectional view taken along line I-I';

figure 23 is subway station and tunnel junction the embodiment of the utility model provides a subway shield tunnel damping section of jurisdiction ring suitable for difference subsides and high intensity seismic region is suitable for difference to subside and high intensity seismic region's subway shield tunnel damping section of jurisdiction ring and conventional section of jurisdiction and arranges the sketch map.

Description of reference numerals:

1. a groove-shaped ring beam pipe sheet ring; 2. a damper; 3. a steel barrel with an inner container; 4. a first waterproof pad; 10. an arc groove type ring beam segment; 11. the ring beam and the damper are connected with bolt holes; 12. a ring beam connecting bolt; 13. the ring beam is connected with the bolt hole; 14. a steel cap; 20. an arcuate damper section; 21. a left side loading plate; 22. an inner core; 23. a right side loading plate; 24. a waterproof adhesive tape; 25. a damper connecting bolt; 26. a damper spring mechanism; 27. an inner core rubber layer; 28. an inner core steel shim; 29. a damping spring; 30. an anchor head; 31. buckling; 32. a damping spring washer; 33. tensioning the reserved hole by a damper spring mechanism; 34. a snap ring; 35. a rotating shaft is buckled; 41. a waterproof anti-slip gasket; 42. an arc-shaped inner liner section; 43. the inner container is provided with a reverse bolt; 44. a flange plate; 50. conventional duct pieces; 51. a second waterproof pad; 52. a force reducing spring; 53. the damping and conventional segment connecting bolt; 60. a damping segment; 100. a damping tube sheet ring; 200. a conventional tubing ring; 300. subway stations.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The embodiment provides a subway shield tunnel damping pipe sheet ring suitable for differential settlement and high-intensity seismic areas, which comprises a groove-shaped ring beam pipe sheet ring 1, a damper 2 and a liner steel barrel 3 as shown in fig. 1, 2, 8 and 17; the damper 2 is connected with the groove-shaped ring beam pipe sheet rings 1 positioned on the left side and the right side of the damper 2 through damper connecting bolts 25, the liner steel barrel 3 is arranged on the inner side of the damper 2, and the liner steel barrel 3 is tightly attached to the damper 2; the damper 2 is formed by connecting a left loading plate 21, an inner core 22 positioned in the middle and a right loading plate 23 through a damper spring mechanism 26; the damper connecting bolts 25 are provided on the left and

right loading plates

21 and 23.

As shown in fig. 12 to 16, the inner core 22 is composed of a plurality of inner core rubber layers 27 and inner core steel gaskets 28 which are alternately arranged, the outermost side of the inner core 22 is provided with the inner core steel gasket 28, and the inner core steel gasket 28 and the inner core rubber layers 27 are provided with damping spring mounting holes; the damper spring mechanism 26 consists of a damping spring 29, an anchor head 30, a buckle 31 and a damping spring gasket 32; the damping spring 29 is mounted in the damping spring mounting hole, two ends of the damping spring 29 are respectively and fixedly connected with the left loading plate 21 and the right loading plate 23 through the buckle 31 and the anchor head 30, the buckle 31 is composed of a buckle ring 34 and a buckle rotating shaft 35, and the left loading plate 21 and the right loading plate 23 are respectively provided with a reserved hole; and a waterproof rubber strip 24 is arranged outside the inner core 22.

The damper installation process is as follows: firstly, preliminarily assembling a left loading plate 21, a right loading plate 23, a core steel gasket 28, a core rubber layer 27 and a damping spring 29; then, hooking the tensioning rod on the damper spring mechanism to stretch the reserved hole 33, and starting a jack to stretch; finally, after the tensile force meets the requirement, the buckle 31 is installed, and the jack is removed; the damper spring 29 contracts and presses the buckle against the left and

right load plates

21 and 23. Meanwhile, the rubber layer 27 and the steel backing plate 28 are tightly attached together under the action of the tension of the damping spring 29 to form a deformable and rigid composite structure, and the composite structure forms a plurality of arc-shaped damper sections 20; the thickness of the damper 2 is 20-50cm, and the monoblock arc damper is at least provided with 2 damping springs 29 to provide enough pressure; the damper springs 29 are anchored to the left and

right load plates

21 and 23 by means of snaps.

The damper 2 can be composed of a plurality of arc-shaped damper sections 20; the damper 2 can be composed of three or four monoblock arc damper sections 20 with central angles of 120 degrees or 90 degrees; in this embodiment, the damper 2 is composed of three monoblock arc damper segments 20 with a central angle of 120 °; the thickness of the damper is 20-50cm, and the monoblock arc damper is at least provided with 2 damper spring mechanisms. The inner and outer diameters of the left and

right loading plates

21 and 23 are the same as those of the conventional tube sheet 200, and the thickness of the left and

right loading plates

21 and 23 is 2.5 to 3.5 cm.

As shown in fig. 2-7, the groove-shaped ring beam duct piece ring 1 can be formed by connecting a plurality of arc-shaped groove-shaped ring beam duct pieces 10 through ring beam connecting bolts 12; the groove-shaped ring beam pipe piece ring 1 can be formed by connecting three or four single arc groove-shaped ring beam pipe pieces 10 with central angles of 120 degrees or 90 degrees through ring beam connecting bolts 12, and in the embodiment, the groove-shaped ring beam pipe piece ring 1 can be formed by connecting three single arc groove-shaped ring beam pipe pieces 10 with central angles of 120 degrees through ring beam connecting bolts 12; the ring beam connecting bolt 12 is composed of a ring beam connecting screw rod, a ring beam connecting nut and a ring beam connecting gasket. The arc groove type ring beam duct piece 10 is provided with the ring beam connecting bolt hole 13 matched with the ring beam connecting bolt 12; the width of the groove-shaped ring beam duct piece 10 is about one third to one half of that of a conventional duct piece 50, the thickness of the groove-shaped ring beam duct piece 10 is slightly smaller than that of the conventional duct piece 50, the thickness of ribs around the groove-shaped ring beam is 15-20cm, and the groove-shaped ring beam duct piece has enough structural strength. The steel cap 14 in fig. 7 is used to form a damper spring mechanism pre-hole 33 in the groove-shaped ring beam tube sheet ring 1, to provide a space for the anchor head 30 and the clip 31, to allow the left and

right loading plates

21 and 23 of the damper 2 to be in flat contact with the side of the groove-shaped ring beam tube sheet ring 1, and to facilitate installation of the first waterproof gasket 4 shown in fig. 1. And the groove-shaped ring beam pipe sheet ring 1 is provided with a ring beam and damper connecting bolt hole 11 matched with the damper connecting bolt 25. And a first waterproof pad 4 is arranged between the arc groove type ring beam duct piece 10 and the damper 2.

Damper attachment bolts 25 attach the arcuate damper sections 20 to the single arcuate channel type ring beam segment 10. As shown in fig. 4, the ring beam connecting bolts 12 connect the single arc-shaped, channel-shaped ring beam segments 10 together to form a closed channel-shaped ring beam segment ring 1, thus also bringing together the arc-shaped damper segments 20 to form a closed damper 2.

As shown in fig. 17-20, the inner container steel drum 3 is composed of an inner container and a waterproof and anti-slip gasket 41 arranged outside the inner container, and the inner container is formed by connecting a plurality of arc-shaped inner container sections 42 through inner container reverse bolts 43; the inner container is formed by connecting three or four single arc-shaped inner container sections 43 with central angles of 120 degrees or 90 degrees through the inner container reverse bolts 43, and in the embodiment, the inner container is formed by connecting three single arc-shaped inner container sections 43 with central angles of 120 degrees through the inner container reverse bolts 43. A flange plate 44 is welded at the tail end of the arc-shaped inner container section 42; the size of the inner container is adjusted by adjusting the reverse bolt 43 of the inner container, so that the close fit degree of the inner container steel barrel 3 and the damper 2 is adjusted; the inner container is formed by connecting three or four single arc-shaped inner container sections 42 with central angles of 120 degrees or 90 degrees through inner container reverse bolts 43; the thickness of the single arc-shaped inner container section 42 is 2.5-3.5 cm; the length of the flange plate 44 is 10-15 cm; the inner container reverse bolt 43 is composed of an inner container connecting screw rod, an inner container connecting gasket and an inner container connecting nut.

As shown in fig. 21 and 22, the damping duct piece 60 is connected with the conventional duct piece connecting bolt 53 and the conventional duct piece 50 of the subway shield tunnel through damping, and a second waterproof gasket 51 is provided between the arc-shaped groove type girt beam duct piece 10 and the conventional duct piece 50. The groove-shaped ring beam duct piece 10 is used for transition between a conventional duct piece 50 of the subway shield tunnel and the damper 2. Damping and conventional section of jurisdiction connecting bolt 53 comprises connecting screw, conventional section of jurisdiction side coupling nut, conventional section of jurisdiction side coupling gasket and subtracts power spring 52, damping section of jurisdiction side coupling gasket and damping section of jurisdiction side coupling nut, subtracts power spring 52 and can alleviate the stress concentration of the rotatory bolt department that arouses of damping section of jurisdiction.

As shown in fig. 23, the present embodiment is mainly installed in an area with large differential deformation, for example, an area in 50m of two sides of a headwall of a subway station 300, and the damping tube sheet ring 100 of the present embodiment is installed by separating one ring or several rings of conventional tube sheet rings 200, so as to form a tube sheet structure capable of adapting to deformation as a whole; if the damping duct pieces are applied to a high-intensity earthquake area, the damping duct pieces are generally installed in the whole subway shield tunnel, and the damping duct pieces are installed in an jumping mode according to the number of the damping duct pieces, wherein the damping duct pieces are calculated according to parameters such as earthquake intensity, geotechnical engineering and the like, so that the deformation adapting effect is achieved, and the manufacturing cost is saved to the maximum extent.

According to the technical scheme, the subway shield tunnel damping pipe sheet ring suitable for differential settlement and high-intensity earthquake areas is a shield subway tunnel damping pipe sheet ring structure which can adapt to differential deformation and earthquake resistance, has self-adaptive deformation capability and has certain rigidity, water resistance and water stop capability; the structure also has the function of being adjustable without interrupting the operation. Therefore, through the installation the utility model discloses a damping section of jurisdiction ring structure for shield subway tunnel structure in difference settlement zone or high intensity seismic region has stronger deformation adaptability, thereby reduces and eliminates the structural stress concentration that the deformation brought even, avoids structural damage. The utility model discloses a damping section of jurisdiction loop constructs the structure have with the supporting characteristics of conventional shield subway tunnel section of jurisdiction structure, it is convenient to be under construction, does not need to use other equipment separately, only jumps the dress at installation conventional section of jurisdiction in-process the utility model discloses section of jurisdiction loop constructs can, the practicality is very strong, expects to obtain promoting in subway shield tunnel to the disaster prevention that subtracts the disaster to china also has great contribution. The utility model discloses there is following beneficial effect:

The embodiments of the present invention have been described in detail through the embodiments, but the description is only exemplary of the embodiments of the present invention and should not be considered as limiting the scope of the embodiments of the present invention. The scope of protection of the embodiments of the present invention is defined by the claims. All utilize technical scheme of the embodiment of the utility model, or technical staff in the field is in the utility model discloses under embodiment technical scheme's the inspiration the utility model discloses in the essence and the protection scope of the embodiment, design similar technical scheme and reach above-mentioned technological effect, perhaps to the impartial change and improvement etc. that the application scope was made, all should still belong to within the protection scope is covered to the patent of the embodiment of the utility model.

Claims

1. A subway shield tunnel damping pipe sheet ring suitable for differential settlement and high-intensity earthquake areas is characterized by comprising a groove-shaped ring beam pipe sheet ring, a damper and an inner container steel barrel; the damper is connected with the groove-shaped ring beam pipe sheet rings positioned on the left side and the right side of the damper through damper connecting bolts, the liner steel barrel is arranged on the inner side of the damper, and the liner steel barrel is tightly attached to the damper; the damper is formed by connecting a left loading plate, an inner core positioned in the middle and a right loading plate through a damper spring mechanism; the damper connecting bolts are arranged on the left loading plate and the right loading plate.

2. The subway shield tunnel damping tube sheet ring suitable for differential settlement and high-intensity seismic areas as claimed in claim 1, wherein said inner core is composed of a plurality of inner core rubber layers and inner core steel gaskets arranged alternately, said inner core steel gaskets are arranged on the outermost side of said inner core, and damping spring mounting holes are arranged on said inner core steel gaskets and said inner core rubber layers.

3. The subway shield tunnel damping pipe sheet ring suitable for differential settlement and high-intensity seismic areas as claimed in claim 2, wherein said damper spring mechanism is composed of a damping spring, an anchor head, a buckle and a damping spring gasket; the damping spring is installed in the damping spring installation hole, two ends of the damping spring are fixedly connected with the left loading plate and the right loading plate through the buckles and the anchor heads respectively, and the left loading plate and the right loading plate are provided with reserved holes respectively.

4. The subway shield tunnel damping tube sheet ring suitable for differential settlement and high-intensity seismic areas as claimed in claim 1, wherein a waterproof rubber strip is arranged outside said inner core.

5. The subway shield tunnel damping tube sheet ring suitable for differential settlement and high-intensity seismic areas as claimed in claim 1, wherein said groove-shaped ring beam tube sheet ring is formed by connecting a plurality of arc-shaped groove-shaped ring beam tube sheets through ring beam connecting bolts, and said damper is formed by a plurality of arc-shaped damper sections.

6. The subway shield tunnel damping tube sheet ring suitable for differential settlement and high-intensity seismic areas as claimed in claim 5, wherein said groove-shaped ring beam tube sheet ring is formed by connecting three or four single arc-shaped groove-shaped ring beam tube sheets with central angles of 120 ° or 90 ° by said ring beam connecting bolts, the width of said groove-shaped ring beam tube sheet is one third to one half of that of a conventional tube sheet, the thickness of said groove-shaped ring beam tube sheet is smaller than that of the conventional tube sheet, and the thickness of the peripheral rib beams of said groove-shaped ring beam tube sheet is 15-20 cm.

7. The subway shield tunnel damping tube sheet ring suitable for differential settlement and high-intensity seismic areas as claimed in claim 5, wherein said arc-shaped groove-shaped ring beam tube sheet is connected with a conventional tube sheet of a subway shield tunnel through a connecting bolt, a second waterproof pad is arranged between said arc-shaped groove-shaped ring beam tube sheet and said conventional tube sheet, and a first waterproof pad is arranged between said arc-shaped groove-shaped ring beam tube sheet and said damper.

8. The subway shield tunnel damper pipe ring suitable for differential settlement and high-intensity seismic areas as claimed in claim 5, wherein said damper is composed of three or four single blocks of said arc damper segments with central angle of 120 ° or 90 °.

9. A subway shield tunnel damping tube sheet ring suitable for differential settlement and high-intensity seismic areas as claimed in claim 5, wherein said damper is 20-50cm thick, and said single block arc damper segment is provided with at least 2 said damper spring mechanisms.

10. The subway shield tunnel damping tube sheet ring suitable for differential settlement and high-intensity seismic areas as claimed in claim 1, wherein the inner and outer diameters of said left and right loading plates are the same as those of conventional tube sheet rings, and the thickness of said left and right loading plates is 2.5-3.5 cm.

11. The subway shield tunnel damping pipe ring suitable for differential settlement and high-intensity seismic regions as claimed in claim 1, wherein said inner container steel drum is composed of an inner container and a waterproof and anti-slip gasket arranged outside said inner container, said inner container is formed by connecting a plurality of arc-shaped inner container sections through inner container reverse bolts.

12. A subway shield tunnel damping tube ring suitable for differential settlement and high-intensity seismic areas as claimed in claim 11, wherein said inner container is formed by connecting three or four single arc-shaped inner container sections with central angles of 120 ° or 90 ° by reverse bolts of said inner container.

13. The subway shield tunnel damping pipe sheet ring suitable for differential settlement and high-intensity seismic areas according to claim 11, wherein a flange plate with bolt holes is arranged at the tail end of the single arc-shaped inner liner section; the thickness of the single arc-shaped inner container section is 2.5-3.5 cm; the length of the flange plate is 10-15 cm.