CN116624174A

CN116624174A - Segment lining structure and construction method thereof

Info

Publication number: CN116624174A
Application number: CN202310830489.4A
Authority: CN
Inventors: 陈欣; 胡洋; 刘榆嵩; 王欢; 刘中东; 李文彪; 罗轩; 牛富生; 王�华; 孙亮亮; 侯占京; 王百泉; 赵冬; 赵杰杰; 刘长旭; 黄小龙; 杨峻; 沈海琦; 廖婷; 周阳
Original assignee: China Railway Pearl River Delta Investment Development Co ltd; China Railway Tunnel Group Co Ltd CRTG; China Railway Tunnel Group Erchu Co Ltd; CRTG Survey and Design Institute Co Ltd
Current assignee: China Railway Pearl River Delta Investment Development Co ltd; China Railway Tunnel Group Co Ltd CRTG; China Railway Tunnel Group Erchu Co Ltd; CRTG Survey and Design Institute Co Ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2023-08-22
Anticipated expiration: 2043-07-06
Also published as: CN116624174B

Abstract

The application relates to the field of building tunnels, and particularly provides a duct piece lining structure and a construction method thereof. The second section of jurisdiction is used for with ground contact, and one side and the first section of jurisdiction of second section of jurisdiction are connected. The third segment is connected with the other side of the second segment. One side of the connecting duct piece is connected with the first duct piece, and the other side is connected with the third duct piece. The segment lining structure further comprises an inner support assembly, the length of the inner support assembly is greater than that of one segment ring and less than that of two segment rings along the axial direction of the segment lining structure, and the inner support assembly is arranged on the first segment and the second segment of one segment ring and the second segment and the third segment of the adjacent other segment ring. Can keep stable when the segment ring is built.

Description

Segment lining structure and construction method thereof

Technical Field

The application relates to the field of building tunnels, in particular to a segment lining structure and a construction method thereof.

Background

The demonstration tunnel can contain common tunnel defect types such as tunnel leakage water, cracks, holes and the like, so that a simulation scene is provided for various inspection equipment and repair equipment to simulate the defect treatment repair process. In the related art, a tunnel can be formed through a segment lining, but the stability of the tunnel construction process is insufficient due to the heavy weight and the large number of segments.

Disclosure of Invention

In view of the above, it is necessary to provide a segment lining structure having high stability in the construction process and a construction method thereof.

The embodiment of the application provides a segment lining structure, which comprises a plurality of segment rings, wherein the segment rings are coaxially arranged, two adjacent segment rings relatively rotate for a preset angle, and each segment ring comprises a first segment, a second segment, a third segment and a connecting segment. The second duct piece is used for being in contact with the ground, and one side of the second duct piece is connected with the first duct piece. The third segment is connected with the other side of the second segment. One side of the connecting duct piece is connected with the first duct piece, and the other side of the connecting duct piece is connected with the third duct piece. The pipe sheet lining structure further comprises an inner supporting component, the length of the inner supporting component is greater than that of one pipe sheet ring and less than that of two pipe sheet rings along the axial direction of the pipe sheet lining structure, and the inner supporting component is arranged on a first pipe sheet and a second pipe sheet of one pipe sheet ring and a second pipe sheet and a third pipe sheet of the other adjacent pipe sheet ring.

In the segment lining structure of the above embodiment, the inner support assembly may be disposed on the first segment and the second segment of the first segment ring, and the first segment and the third segment of the second segment ring, and the inner support assembly is used for supporting the segment ring when the segment ring is constructed, so as to maintain stability of the segment ring. Along the axis direction of the segment lining structure, the length of the inner support component is greater than that of one segment ring and less than that of two segment rings, so that the inner support component can stably support the first segment ring and the second segment ring at the same time, and the stability of the segment rings is kept.

In at least one embodiment, the inner support assembly includes a support base, a first platform, and a second platform. The bottom of the supporting seat is propped against the first duct piece and the second duct piece of one duct piece ring, the second duct piece and the third duct piece of the other duct piece ring, and the top of the supporting seat is propped against the connecting duct piece. The first platform is arranged on the supporting seat, one side of the first platform is propped against the first duct piece, and the other side of the first platform is propped against the third duct piece. The second platform is arranged on the supporting seat and is positioned above the first platform, one side of the second platform is propped against the connecting duct piece, and the other side of the second platform is propped against the first duct piece of one duct piece ring and the third duct piece of the other duct piece ring.

In the segment lining structure of the above embodiment, the segment ring can be stably supported by the cooperation of the first platform, the second platform and the supporting seat, and after the first segment ring is built, the inner supporting component can be carried from the first segment ring to the second segment ring to the third segment ring so as to be convenient for supporting other subsequent segment rings.

The embodiment of the application also provides a construction method of the segment lining structure, which comprises the following steps:

the first segment ring: splicing a first segment A and a second segment A of the first segment ring;

the second segment ring: splicing the second segment B and the third segment B of the second segment ring;

building an inner support assembly: the support of the inner support assembly is propped against the first duct piece A, the second duct piece B and the third duct piece B;

first and third segment rings: splicing the first segment C and the second segment C of the first segment ring and the third segment ring;

moving the inner support assembly: and placing the inner support assembly on the second segment ring and the third segment ring.

In the construction method of the segment lining structure of the above embodiment, when the segment ring is built by building the inner support assembly, the inner support assembly can support the segment ring so as to keep the stability of the segment ring, and along with the completion of the building of the segment ring, the inner support assembly can also move so as to support other segment rings, so that the process of building the segment ring can keep the stability thereof all the time.

In at least one embodiment, the steps of the first and third segment rings comprise:

splicing a third segment A of the first segment ring to the second segment A, and splicing a fourth segment A to the first segment A;

splicing a fifth segment A of the first segment ring with the wedge-shaped segment A;

connecting one side of the fifth segment A with the third segment A, and connecting the wedge-shaped segment A with the fourth segment A;

and splicing the first duct piece C and the second duct piece C of the third duct piece ring.

In the construction method of the segment lining structure in the above embodiment, the third segment a may be spliced first and then the fourth segment a may be spliced when the segments are spliced, so that the center of gravity of the first segment ring is as close to the preset straight line as possible. Because wedge section of jurisdiction A is comparatively less, splice fifth section of jurisdiction A and wedge section of jurisdiction A in advance, the concatenation is convenient to once only hoist fifth section of jurisdiction A and wedge section of jurisdiction A, can reduce and hoist the number of times, promote concatenation efficiency.

In at least one embodiment, the step after splicing the third segment a and the fourth segment a and before splicing the first segment C and the second segment C further includes the steps of:

and splicing the first segment B of the second segment ring to the second segment B.

In the construction method of the segment lining structure of the embodiment, the first segment B can be conveniently spliced, and the contact area of the first segment C can be increased when the first segment C is spliced, so that the stability of the first segment C is improved.

In at least one embodiment, the step of splicing the fourth segment a to the first segment a further includes the steps of:

one end of a supporting rod of the inner supporting component is propped against the third pipe sheet B, and the other end of the supporting rod is connected with the fourth pipe sheet A.

In the construction method of the segment lining structure of the above embodiment, since the height of the fourth segment a is high when the fourth segment a is spliced, the position where the second platform supports the second segment is relatively low, and the fourth segment a is connected through the support rod so that the fourth segment a can be kept stable.

In at least one embodiment, the step before the first segment ring further comprises the steps of: pouring a cast-in-place section;

the method further comprises the following steps after the first segment ring and the third segment ring: and pouring a ring beam between the cast-in-situ section and the first segment ring.

In the construction method of the segment lining structure in the above embodiment, after the first segment ring is spliced, the first segment ring may be connected with the cast-in-place segment, so as to improve the stability of the first segment ring.

In at least one embodiment, the step of the first segment ring comprises:

lifting the second duct piece A with the radian of 60-80 degrees through a first lifting point positioned at the middle position of the second duct piece A and a second lifting point positioned at one side of the second duct piece A, wherein the height of the second lifting point is 0.3R-0.4R higher than that of the first lifting point;

and lifting the first pipe piece A with the radian of 60-80 degrees, wherein the height of a first lifting point of the first pipe piece A is 0.5R-0.6R higher than that of a second lifting point, and R is the radius of the pipe piece lining structure.

In the construction method of the segment lining structure of the above embodiment, the angles of the second segment a and the first segment a can be adapted so as to facilitate splicing.

In at least one embodiment, the step of the second segment ring comprises:

splicing the second duct piece B to the second duct piece A and the first duct piece A, wherein the second duct piece B and the second duct piece A are symmetrically arranged along the projection plane of the axis of the duct piece lining structure;

and splicing the third duct piece B with the second duct piece B and the second duct piece A, wherein the third duct piece B and the first duct piece A are symmetrically arranged along the projection plane of the axis of the duct piece lining structure.

In the construction method of the segment lining structure of the embodiment, the third segment B is lifted and spliced on the second segment B through the first lifting point and the second lifting point, the centers of gravity of the first segment a and the second segment a are deviated to the left, and the centers of gravity of the second segment B and the third segment B are deviated to the right, so that the centers of gravity are kept in the middle as much as possible after connection, and the stability is improved, so that the inner support assembly is built.

In at least one embodiment, the step of moving the inner support assembly further comprises: and splicing to finish the second segment ring.

In the construction method of the segment lining structure of the above embodiment, the inner support assembly is located between the second segment ring and the third segment ring, so that when the second segment ring is spliced, the inner support assembly can support the second segment ring to keep the splicing stability of the second segment ring

According to the segment lining structure and the construction method thereof, the segment ring is supported by the inner support assembly, so that the stability of the segment ring is maintained. In the process of splicing the segment rings, the first segment ring is spliced firstly, then the second segment ring is spliced, the first segment ring is spliced completely after the inner support assembly is kept stable, so that the stability of the segment ring splicing process can be kept, and the inner support assembly can be conveniently moved.

Drawings

Fig. 1 is a perspective view of a segment lining structure in an embodiment of the present application.

Fig. 2 is a side view of the first segment ring, inner support assembly, outer support assembly and shoe of fig. 1.

Fig. 3 is a side view of the second segment ring, inner support assembly, outer support assembly and shoe of fig. 1.

Fig. 4 is a perspective view of the second segment ring a of fig. 1.

Fig. 5 (a) is a side view of the second segment a lifted in accordance with an embodiment of the present application.

Fig. 5 (b) is a side view of the first segment a lifted in accordance with an embodiment of the present application.

Fig. 6 is a schematic view of the first segment ring, the second segment ring, and the third segment ring of fig. 1 deployed.

Fig. 7 to 15 are perspective structural views of a process of constructing a segment lining structure.

Fig. 16 is a perspective view of a segment lining structure in another embodiment of the present application.

Description of the main reference signs

Segment lining structure 100

Segment ring 10

First segment ring 10a

First segment A11a

Second segment A12a

Third segment A13a

Fourth segment A14a

Fifth segment A15a

Wedge-shaped segment A16a

A second segment ring 10b

First segment B11B

Second segment B12B

Third segment B13B

Fourth segment B14B

Fifth segment B15B

Third segment ring 10c

First segment C11C

Second segment C12C

Connection hole 101

Grouting hole 102

Inner support assembly 20

Support seat 21

First platform 22

Second platform 23

Support bar 24

Outer support structure 30

Support 31

Shoe 40

Base 41

Pallet 42

Cast-in-situ section 50

Ring beam 60

Preset straight line O

Included angle alpha, beta

Radian gamma

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments.

It is noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like are used herein for illustrative purposes only.

When two elements (planes, lines) are arranged in parallel, it is understood that the relationship between the two elements includes both parallel and substantially parallel. Wherein substantially parallel is understood to mean that there may be an angle between the two elements that is greater than 0 deg. and less than or equal to 10 deg..

When two elements (planes, lines) are disposed vertically, it is understood that the relationship between the two elements includes both vertically and generally vertically. Wherein substantially perpendicular is understood to mean that the angle between the two elements is greater than or equal to 80 deg. and less than 90 deg..

When a parameter is greater than, equal to, or less than a certain endpoint, it is understood that the endpoint allows for a tolerance of + -10%, e.g., a to B greater than 10, it is understood to include cases where a to B is greater than 9, as well as cases where a to B is greater than 11.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Some embodiments of the present application provide a segment lining structure, including a plurality of segment rings, a plurality of segment rings are coaxially disposed, two adjacent segment rings relatively rotate by a preset angle, and each segment ring includes a first segment, a second segment, a third segment, and a connecting segment. The second duct piece is used for being in contact with the ground, and one side of the second duct piece is connected with the first duct piece. The third segment is connected with the other side of the second segment. One side of the connecting duct piece is connected with the first duct piece, and the other side of the connecting duct piece is connected with the third duct piece. The pipe sheet lining structure further comprises an inner supporting component, the length of the inner supporting component is greater than that of one pipe sheet ring and less than that of two pipe sheet rings along the axial direction of the pipe sheet lining structure, and the inner supporting component is arranged on a first pipe sheet and a second pipe sheet of one pipe sheet ring and a second pipe sheet and a third pipe sheet of the other adjacent pipe sheet ring.

Some embodiments of the present application will be described below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.

Referring to fig. 1, 2 and 3, an embodiment of the present application provides a segment lining structure 100, where the segment lining structure 100 includes a plurality of segment rings 10 and an inner support assembly 20, the plurality of segment rings 10 are coaxially arranged, for convenience of description, among the plurality of segment rings 10 arranged in a set arrangement, the segment ring 10 at the end is a first segment ring 10a, the segment ring 10 adjacent to the first segment ring 10a is a second segment ring 10b, and the second segment ring 10b is located between the first segment ring 10a and a third segment ring 10c, and so on. The inner support assembly 20 is located on the segment ring 10 for supporting the segment ring 10.

Each segment ring 10 includes a first segment, a second segment, a third segment, and a connecting segment. The second duct piece is in contact with the ground and is positioned between the first duct piece and the third duct piece, the connecting duct piece is opposite to the second duct piece and is positioned between the first duct piece and the third duct piece, so that the first duct piece, the second duct piece and the third duct piece are connected in a duct piece connecting ring shape.

For the purpose of describing the present solution more clearly, the first segment of the first segment ring 10a is set to be the first segment a11a, the second segment is set to be the second segment B12B, the first segment of the second segment ring 10B is set to be the first segment B11B, the second segment is set to be the second segment B12B and so on. Alternatively, each segment ring 10 has the same structure, i.e., the first segment a11a has the same shape as the first segment B11B, and the second segment a12a has the same shape as the second segment B12B.

The second segment ring 10B rotates a predetermined angle around the segment lining structure 100 with respect to the first segment ring 10a so that the second segment B12B is connected with the second segment a12a and the first segment a11a, and the third segment B13B is connected with the second segment a12a and the third segment a13a to increase connection stability.

The inner support assembly 20 can be disposed at the first segment a11a, the second segment a12a, the first segment B11B, and the third segment B13B, and the inner support assembly 20 is used to support the segment ring 10 when the segment ring 10 is constructed so as to maintain the stability of the segment ring 10. Along the axial direction of the segment lining structure 100, the length of the inner support assembly 20 is greater than the length of one segment ring 10 and less than the lengths of two segment rings 10, which enables the inner support assembly 20 to stably support both the first segment ring 10a and the second segment ring 10b at the same time, so as to maintain the stability of the segment rings 10.

In addition, since the inner support assembly 20 is usually lifted and carried by the crane when the segment ring 10 is constructed, the length of the inner support assembly 20 is set so that the segment ring 10 can be completely spliced, and at least part of the upper part of the inner support assembly 20 is free of segments, so that the inner support assembly is convenient to lift.

By way of example, the inner support assembly 20 is placed on the first segment ring 10a and the second segment ring 10b such that the inner support assembly 20 can support various locations inside the first segment ring 10a, and when the first segment ring 10a is spliced, and the second segment ring 10b is not spliced, there is no shield at the upper end of the portion of the inner support assembly 20 located on the second segment ring 10b, so that the inner support assembly 20 is lifted up and carried to the second segment ring 10b and the third segment ring 10c, and so on.

Optionally, in some embodiments, the radian γ of each of the first segment a11a, the second segment a12a, and the third segment a13a is 72 °, the straight line where the diameter of the segment lining structure 100 perpendicular to the ground is set to be the preset straight line O, the included angle α between one side of the second segment a12a, which is close to the first segment a11a, and the preset straight line O is 18 °, and the included angle β between the other side of the second segment a12a and the preset straight line O is 54 °. The included angle alpha between one side of the second segment B12B, which is close to the first segment B11B, and the preset straight line O is 54 degrees, and the included angle beta between the other side of the second segment B and the preset straight line O is 18 degrees. At this time, the preset angle of rotation of the second segment ring 10b with respect to the first segment ring 10a is 36 °.

One side of the first segment a11a away from the second segment a12a and one side of the third segment B13B away from the second segment B12B are located on a horizontal line coincident with the diameter of the segment lining structure 100, which can facilitate subsequent splicing of the connecting segments. In addition, on the projection plane facing the axis of the segment lining structure 100, the first segment a11a and the second segment a12a of the first segment ring 10a are symmetrical with the second segment B12B and the third segment B13B of the second segment ring 10B, so that the stress of the bottom structure is balanced, and the stability is maintained.

It is understood that the radian γ of the first segment a11a, the second segment a12a, and the third segment a13a is not limited to 72 °, but may be other, for example, 65 °, 75 °, or the like. The angles between the two sides of the second segment a12a and the preset straight line O are not limited to 18 ° and 54 °, but may be other angles, such as 16 ° and 56 °, 20 ° and 52 °.

Optionally, in some embodiments, the connecting segment a includes a fourth segment a14a, a fifth segment a15a, and a wedge segment a16a. One side of the fourth pipe sheet a14a is connected with one side of the first pipe sheet a11a far away from the second pipe sheet a12a, and the other side of the fourth pipe sheet a14a is wedge-shaped. One side of the fifth segment a15a is connected with one side of the third segment a13a away from the second segment a12a, and the other side of the fifth segment a15a is wedge-shaped. The wedge-shaped duct piece a16a is disposed between the fourth duct piece a14a and the fifth duct piece a15a, and is engaged with one side of the fourth duct piece a14a and the fifth duct piece a15a in a wedge shape.

Referring to fig. 4 in combination, optionally, each segment is further provided with a grouting hole 102, the grouting hole 102 is located in the middle of the inner side of each segment, and by way of example, the first segment a11a is provided with a grouting hole 102 for pouring concrete into the first segment a11a, and the grouting hole 102 can be used as a first hanging point to be matched with a hanging hook so as to hang the first segment a11a.

The two sides of each segment are provided with connecting holes 101, and the connecting holes 101 corresponding to the two adjacent segments are communicated so as to be fixed through bolts and screws. For example, the two sides of the first segment a11a are provided with the connection holes 101, the connection hole 101 on one side of the first segment a11a is communicated with the connection hole 101 of the second segment a12a, and the connection hole 101 on the other side of the first segment a11a is communicated with the connection hole 101 of the fourth segment a14a of the connection segment a. The connection hole 101 of the first segment a11a can also be used as a second hanging point for being matched with the hanging hook of the crane so as to hang and convey the first segment. The connection hole 101 has both a connection function and a function for cooperating with a hook to lift the segment.

Referring to fig. 5 and 6 in combination, the grouting hole 102 of the first segment is used as a first hanging point, and the connecting hole 101 of the first segment is used as a second hanging point, so as to hang the first segment, and adjust the position and angle of the first segment. The first lifting point is used for lifting the first duct piece, and the second lifting point is used for adjusting the angle of the first duct piece.

Optionally, the segments are also provided with connection holes 101 along both sides of the axis of the lining segment structure, which connection holes 101 are used for connecting segments of two adjacent segment rings 10 by means of bolts. By way of example, the second segment a12a, the second segment B12B, and the third segment B13B are connected by bolts penetrating the connection holes 101 of the second segment a12a and the connection holes 101 of the second segment B12B, and the third segment B13B.

Referring to fig. 7, 8 and 9, the inner support assembly 20 is disposed in the segment ring 10 for supporting the segment ring 10. The inner support assembly 20 includes a support base 21, a first platform 22 and a second platform 23. The bottom of the supporting seat 21 is abutted against the first duct piece a11a, the second duct piece a12a, the second duct piece B12B and the third duct piece B13B, and the top of the supporting seat 21 is abutted against the fifth duct piece a15a and the fourth duct piece B14B. The first platform 22 is disposed on the supporting seat 21, one side of the first platform 22 abuts against the first segment a11a and the third segment B13B, and the other side abuts against the first segment B11B and the third segment a13a. The second platform 23 is disposed on the supporting seat 21 and located above the first platform 22, one side of the second platform 23 abuts against the fourth duct piece a14a and the first duct piece B11B, and the other side abuts against the third duct piece a13a and the fifth duct piece B15B. The segment ring 10 is supported by the inner support assembly 20, so that the segment ring 10 can be kept stable.

Along the axial direction of the segment rings 10, the length of the supporting seat 21 is greater than the length of one segment ring 10 and less than the lengths of two segment rings 10, so that the supporting seat 21 can be stably placed on the bottom structure. The first and second platforms 22 and 23 support the segment to maintain stability of the segment ring 10.

After the first segment ring 10a is built, the inner support assembly 20 can be carried from the first segment ring 10a to the second segment ring 10b and from the second segment ring 10b to the third segment ring 10c, so as to support the subsequent other segment rings 10.

Referring to fig. 10, 11, 12 and 13, optionally, in some embodiments, the inner support assembly 20 further includes a support rod 24, where the support rod 24 is disposed obliquely, and one end of the support rod 24 is inserted into the connection hole 101 of the third segment B13B when the first segment ring 10a is constructed, and the other end is connected to the fourth segment a14a, so as to keep the fourth segment a14a stable when the fourth segment a14a is constructed. When the second segment ring 10B is constructed, the support bar 24 is inclined toward the other direction, and one end is inserted into the connection hole 101 of the first segment C11C and the other end is connected to the fifth segment B15B. When constructing different segment rings 10, the support rods 24 can all stably support the segment so as to splice the segment rings 10.

Referring to fig. 2 and 3, optionally, in some embodiments, the segment lining structure 100 further includes an outer support structure 30, where the outer support structure 30 is disposed on the outer side of the segment ring 10, and is used to support and position the segment ring 10 on the outer side. The position of the segment ring 10 is defined by the inner support assembly 20 cooperating with the outer support structure 30.

The outer support structure 30 includes two support members 31, and the two support members 31 are disposed on opposite sides of the segment ring 10 and below the horizontal diameter of the segment ring 10. One support 31 abuts against the first segment, and the other support 31 abuts against the third segment. Because support piece 31 is located duct piece ring 10 and is the diameter below of level, can reduce the condition that produces the interference when putting up first duct piece and third duct piece and take place, support piece 31 can also share the gravity of partial first duct piece and third duct piece in addition to further promote stability.

Optionally, in some embodiments, the segment lining structure 100 further includes a shoe 40, where the shoe 40 is disposed at the bottom of the segment ring 10, for supporting the segment ring 10 to maintain stability of the segment ring 10. The shoe 40 comprises a base 41 and supporting plates 42 arranged on two sides of the base 41, wherein the base 41 is in direct contact with the segment ring 10 and is adapted to the shape of the segment ring 10 so as to support the segment ring 10. The cross section of the supporting plate 42 is L-shaped, and is matched with the base 41 to form a containing groove, concrete can be filled in the containing groove, the concrete is contacted with the duct piece ring 10, and accordingly the bottom support 40 and the duct piece ring 10 can be fixed after the concrete is solidified.

Optionally, in some embodiments, the segment lining structure 100 further includes a cast-in-place segment 50, as shown in fig. 16, where the cast-in-place segment 50 is a structure formed by casting concrete, and the first segment ring 10a is connected to the cast-in-place segment 50, and the segment lining structure 100 includes both the cast-in-place segment 50 and an assembled segment formed by the segment rings 10, which can increase the variety, so as to provide more various disease simulation scenarios for various inspection devices and repair devices. Alternatively, the cast-in-place segment 50 has a length of 11m and the plurality of segment rings 10 has a length of 9m. A ring beam 60 is cast between the cast-in-situ segment 50 and the first segment ring 10a, and the cast-in-situ segment 50 is connected with the first segment ring 10a through the ring beam 60.

Specifically, one end of the first segment ring 10a of the cast-in-situ Liang Kaojin is provided with a plurality of section steel and is arranged at intervals around the axis of the segment lining structure 100. Bolts are used to penetrate through the connecting holes 101 of the segments of the first segment ring 10a and are connected with the section steel of the cast-in-situ beam to preliminarily connect the cast-in-situ beam with the first segment ring 10a, and then the ring beam 60 is formed by casting to connect the cast-in-situ beam with the first segment ring 10a.

Referring to fig. 1 to 16, an embodiment of the present application further provides a construction method of a segment lining structure 100, which includes:

s102, a first segment ring 10a: the first segment a11a and the second segment a12a of the first segment ring 10a are spliced.

S103, a second segment ring 10b: the second segment B12B and the third segment B13B of the second segment ring 10B are spliced.

S104, building the inner support assembly 20: the brackets of the inner support assembly 20 are abutted against the first segment a11a, the second segment a12a, the second segment B12B and the third segment B13B.

S105, first and third segment rings 10: the first segment C11C and the second segment C12C of the first segment ring 10a and the third segment ring 10C are spliced.

S107, moving the inner support assembly 20: the inner support assembly 20 is placed between the second segment ring 10b and the third segment ring 10c.

Through building interior supporting component 20 so that when building segment ring 10, interior supporting component 20 can support segment ring 10 to keep segment ring 10's stability, and with segment ring 10's construction is accomplished, interior supporting component 20 can also remove, in order to support other segment rings 10, so that the process of building segment ring 10 can keep its stability all the time.

To provide more pest simulation as possible, the segment lining structure 100 may add the cast-in-situ segment 50, and thus, step S102 may further include the steps of:

s101: cast-in-place segment 50 is cast. The process of casting the cast-in-place segment 50 is as follows: cushion construction, base plate waterproof coiled material construction, base plate waterproof protection layer construction, base plate and short side wall steel bar binding, deformation joint water stop, water stop steel plate installation, base plate and short side wall template installation, base plate and short side wall concrete pouring, side wall steel bar binding, deformation joint water stop, water stop steel plate installation, side wall template installation, side wall concrete pouring, demolding maintenance, support system erection, arch frame erection, vault template installation, vault concrete pouring, demolding maintenance, side wall and arc roof waterproof layer construction, and arc roof waterproof protection layer construction.

It should be understood that the step S101 is not limited to the following step S102, but the step S101 may be performed simultaneously with the step S102, that is, the first segment ring 10a is built while the cast-in-place segment 50 is cast, or the step S102 is performed before the step S101.

Step S102: first segment ring 10a: the first segment a11a and the second segment a12a of the first segment ring 10a are spliced. Since the second segment a12a is in contact with the ground, and the dimension of the second segment a12a on the right side of the preset straight line O is larger than the dimension on the left side, the first segment a11a is located on the left side of the second segment a12a, so as to keep the center of gravity of the first segment ring 10 in the building process as close to the preset straight line O as possible. Step S102 includes:

s1021: and lifting the second duct piece A12a with the radian gamma of 60-80 degrees through a first lifting point positioned at the middle position of the second duct piece A12a and a second lifting point positioned at one side of the second duct piece A12a, wherein the height of the second lifting point is 0.3R-0.4R higher than that of the first lifting point. Specifically, the radian γ of the second segment a12a is 72 °, the radius of the second segment a12a is 2700mm, the wall thickness is 300mm, the second hanging point is 910mm higher than the first hanging point, and the second hanging point is located on the right side of the first hanging point, so that the angle α between the side of the second segment a12a close to the first segment a11a and the preset straight line O is 18 °, and the angle β between the other side of the second segment a12a and the preset straight line O is 54 °.

S1022: and lifting the first pipe piece A11a with the radian gamma of 60-80 degrees, wherein the height of a first lifting point of the first pipe piece A11a is 0.5R-0.6R higher than that of a second lifting point, and R is the radius of the pipe piece lining structure 100. Specifically, the radian γ of the first segment a11a is 72 °, the second hanging point of the first segment a11a is 1587mm higher than the first hanging point, and the second hanging point to be hung is located at the left side of the first hanging point, so that the angle of the first segment a11a and the second segment a12a is adapted to facilitate splicing.

After the second segment a12a and the first segment a11a are spliced, the second segment ring 10b is spliced, that is, step S103 is performed, where the second segment ring 10b: the second segment B12B and the third segment B13B of the second segment ring 10B are spliced.

Step S103 includes: s1031: the second segment B12B is spliced to the second segment a12a and the first segment a11a, and the second segment B12B and the second segment a12a are symmetrically arranged along the projection plane of the axis of the segment lining structure 100.

The second duct piece B12B is lifted by the first lifting point and the second lifting point, the second lifting point is positioned on the left side of the first lifting point and is 910mm higher than the first lifting point, so that the second duct piece B12B and the second duct piece A12a are symmetrically arranged, half of the second duct piece B12B is connected with the second duct piece A12a, the other half of the second duct piece B12B is connected with the first duct piece A11a, and the connection stability is high.

S1032: the third segment B13B is spliced with the second segment B12B and the second segment a12a, and the third segment B13B and the first segment a11a are symmetrically arranged along the projection plane of the axis of the segment lining structure 100.

The third duct piece B13B is lifted and spliced to the second duct piece B12B through the first lifting point and the second lifting point, the centers of gravity of the first duct piece A11a and the second duct piece A12a are deviated to the left, and the centers of gravity of the second duct piece B12B and the third duct piece B13B are deviated to the right, so that the centers of gravity are kept in the middle as much as possible after connection, and the stability is improved, so that the inner support assembly 20 is built.

S104, building the inner support assembly 20: the brackets of the inner support assembly 20 are abutted against the first segment a11a, the second segment a12a, the second segment B12B and the third segment B13B. The length of the inner support assembly 20 along the axial direction is greater than one segment ring 10 and less than the lengths of two segment rings 10, so that the inner support assembly 20 needs to be built after the first segment a11a, the second segment a12a, the second segment B12B and the third segment B13B are spliced, the inner support assembly 20 can simultaneously support the two segment rings 10, and the inner support assembly 20 can be conveniently carried.

After the inner support assembly 20 is built, the first segment ring 10a can be spliced, and the third segment ring 10c can be spliced for subsequent carrying of the inner support assembly 20.

Thus, the process starts with step S105, the first segment ring 10 and the third segment ring 10: the first segment C11C and the second segment C12C of the first segment ring 10a and the third segment ring 10C are spliced. Step S105 includes:

s1051, splicing the third segment A13a of the first segment ring 10a to the second segment A12a, and splicing the fourth segment A14a to the first segment A11a. During the splicing, the third segment a13a may be spliced first, and then the fourth segment a14a may be spliced, so that the center of gravity of the first segment ring 10a is as close to the preset line O as possible.

S1054, splicing the fifth duct piece A15a of the first duct piece ring 10a with the wedge-shaped duct piece A16a.

Because wedge-shaped duct piece A16a is relatively smaller, the fifth duct piece A15a and wedge-shaped duct piece A16a are spliced in advance, so that the splicing is convenient, and the fifth duct piece A15a and the wedge-shaped duct piece A16a are lifted at one time, so that the lifting times can be reduced, and the splicing efficiency is improved.

And S1055, connecting one side of the fifth duct piece A15a with the third duct piece A13a, and connecting the wedge-shaped duct piece A16a with the fourth duct piece A14 a.

After the fifth segment a15a and the wedge segment a16a are spliced, the first segment ring 10a is spliced, and the wedge blocks are padded on the top of the supporting seat 21 of the inner supporting component 20, on both sides of the first platform 22 and the second platform 23, so that the inner supporting component 20 can stably support each segment of the first segment ring 10.

The fourth pipe sheet A14a is spliced firstly, so that one side of the fourth pipe sheet A14a, which is close to the fifth pipe sheet A15a, is upwards arranged, one side of the third pipe sheet A13a, which is close to the fifth pipe sheet A15a, is upwards arranged, and the installation is simpler and quicker by lifting from top to bottom when the fifth pipe sheet and the wedge-shaped pipe sheets are built.

S1056, splicing the first duct piece C11C and the second duct piece C12C of the third duct piece ring 10C.

Since the height of the fourth pipe sheet a14a is high when the fourth pipe sheet a14a is spliced, the position where the second stage 23 supports the second pipe sheet is relatively low, the step S1051 further includes the steps of:

s1052: one end of the supporting rod 24 of the inner supporting component 20 is abutted against the third pipe piece B13B, and the other end is connected with the fourth pipe piece a14 a. Specifically, one end of the support bar 24 is inserted into the connection hole 101 of the third tube sheet B13B, and the other end is connected to the fourth tube sheet a14 a. The fourth tube sheet a14a is further supported by the support bar 24 to keep the fourth tube sheet a14a stable.

In the process of splicing the duct pieces, the condition that other duct pieces are pre-installed on two sides of the duct piece along the axial direction should be reduced as much as possible, for example, if the second duct piece C12C and the first duct piece C11C are installed first, when the first duct piece B11B is installed, the first duct piece a11a is arranged on one side of the first duct piece B11 a, and the first duct piece C11C is arranged on the other side of the first duct piece B, so that the position accuracy requirement of the second duct piece B12B is high when the second duct piece B12B is hoisted, so that the first duct piece a11a and the first duct piece C cannot interfere.

Thus, in step S1056, the first segment C11C and the second segment C12C of the third segment ring 10C are spliced. The method also comprises the step S1053: the first segment B11B of the second segment ring 10B is spliced to the second segment B12B. Therefore, the first duct piece B11B can be conveniently spliced, and the contact area of the first duct piece C11C can be increased when the first duct piece C11C is spliced, so that the stability of the first duct piece C11C is improved.

After the first segment ring 10a is spliced, the first segment ring 10a may be connected to the cast-in-situ segment 50 to improve the stability of the first segment ring 10a, so that the method further includes step S106: ring beams 60 are cast between cast-in-place segment 50 and first segment ring 10a. The cast-in-place segment 50 can be stably connected with the first segment ring 10a by forming the cast-in-place ring beam 60. The first segment ring 10a is initially connected to the cast-in-place segment 50 by bolts passing through the section steel and the connecting holes 101 of the segments in the first segment ring 10a before casting the ring beam 60.

After the first segment ring 10a is spliced and the first segment C11C and the second segment C12C are spliced, the inner support assembly 20 may be carried so that the inner support assembly 20 supports the second segment ring 10b and the third segment ring 10C. Thus, step S107 is performed: moving the inner support assembly 20: the inner support assembly 20 is placed between the second segment ring 10b and the third segment ring 10c.

Because the second segment ring 10b is not completely spliced, the upper end of the portion of the inner support assembly 20 corresponding to the second segment ring 10 is not covered, the inner support assembly 20 can be directly lifted and carried by the crane, and when the inner support assembly 20 is carried to the second segment ring 10b and the third segment ring 10c, the inner support assembly 20 is put down.

The inner support assembly 20 is carried and then includes a step S108 of splicing the second segment ring 10 b. The inner support assembly 20 is located between the second segment ring 10b and the third segment ring 10c, so that when the second segment ring 10b is spliced, the inner support assembly 20 can support the second segment ring 10b, keep the second segment ring 10b stable in splicing, and finish other segment rings 10 by analogy. And (5) after the segment rings 10 are spliced, backfilling concrete.

Accordingly, the specific steps of the construction method of the segment lining structure 100 may be:

s101: cast-in-place segment 50 is cast.

S106: ring beams 60 are cast between cast-in-place segment 50 and first segment ring 10a.

S107: moving the inner support assembly 20: the inner support assembly 20 is placed between the second segment ring 10b and the third segment ring 10c.

S108, splicing the second segment ring 10 b.

In summary, the embodiment of the present application provides a segment lining structure 100 and a construction method thereof, in which the inner support assembly 20 supports the segment ring 10, so as to maintain the stability of the segment ring 10. In the process of splicing the segment rings 10, the first segment ring 10a is spliced firstly, then the second segment ring 10b is spliced, the first segment ring 10a is spliced completely after the inner support assembly 20 is kept stable, so that the stability of the segment ring 10 in the splicing process can be kept, and the inner support assembly 20 can be moved conveniently.

In addition, those skilled in the art will recognize that the foregoing embodiments are merely illustrative of the present application and are not intended to be limiting, as appropriate modifications and variations of the foregoing embodiments are within the scope of the present disclosure.

Claims

1. The utility model provides a segment lining structure, includes a plurality of segment rings, a plurality of the coaxial setting of segment ring, its characterized in that, adjacent two the relative rotation of segment ring is predetermine the angle, every segment ring includes:

a first segment;

the second duct piece is used for being in contact with the ground, and one side of the second duct piece is connected with the first duct piece;

the third duct piece is connected with the other side of the second duct piece;

one side of the connecting duct piece is connected with the first duct piece, and the other side of the connecting duct piece is connected with the third duct piece;

the pipe sheet lining structure further comprises an inner supporting component, the length of the inner supporting component is greater than that of one pipe sheet ring and less than that of two pipe sheet rings along the axial direction of the pipe sheet lining structure, and the inner supporting component is arranged on a first pipe sheet and a second pipe sheet of one pipe sheet ring and a second pipe sheet and a third pipe sheet of the other adjacent pipe sheet ring.

2. The segment lining structure of claim 1, wherein the inner support assembly comprises:

the bottom of the supporting seat is propped against the first duct piece and the second duct piece of one duct piece ring, the second duct piece and the third duct piece of the other duct piece ring, and the top of the supporting seat is propped against the connecting duct piece;

the first platform is arranged on the supporting seat, one side of the first platform is propped against the first duct piece, and the other side of the first platform is propped against the third duct piece;

the second platform is arranged on the supporting seat and is positioned above the first platform, one side of the second platform is propped against the connecting duct piece, and the other side of the second platform is propped against the first duct piece of one duct piece ring and the third duct piece of the other duct piece ring.

3. The construction method of the segment lining structure is characterized by comprising the following steps of:

4. A method of constructing a segment lining structure according to claim 3, wherein the steps of the first and third segment rings comprise:

5. The method of constructing a segment lining structure according to claim 4, wherein after the step of splicing the third segment a and the fourth segment a and before the step of splicing the first segment C and the second segment C, further comprises the steps of:

6. The method of constructing a segment lining structure according to claim 4, wherein the step of splicing a fourth segment a to the first segment a further comprises the steps of:

7. A method of constructing a segment lining structure according to claim 3, wherein the step of, before the first segment ring, further comprises the steps of: pouring a cast-in-place section;

8. A method of constructing a segment lining structure according to claim 3, wherein the step of the first segment ring comprises:

9. The method of constructing a segment lining structure according to claim 8, wherein the step of the second segment ring includes:

10. A method of constructing a segment lining structure according to claim 3, wherein the step of moving the inner support assembly further comprises: and splicing to finish the second segment ring.