CN112160769B - Prefabricated shield segment formed by post-pouring, segment assembly and construction method - Google Patents
Prefabricated shield segment formed by post-pouring, segment assembly and construction method Download PDFInfo
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- CN112160769B CN112160769B CN202011007500.XA CN202011007500A CN112160769B CN 112160769 B CN112160769 B CN 112160769B CN 202011007500 A CN202011007500 A CN 202011007500A CN 112160769 B CN112160769 B CN 112160769B
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 239000011440 grout Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007569 slipcasting Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a prefabricated shield segment formed by post-pouring, a segment assembly and a construction method.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a prefabricated shield segment formed by post-pouring, a segment assembly and a construction method.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The shield segment is a main assembly component for shield construction, is an innermost permanent lining structure of a tunnel, and plays a role in resisting soil layer pressure, underground water pressure and some special loads. In a tunnel constructed by a shield method, a ring pipe piece lining is generally composed of a top sealing block, two adjacent blocks and three standard blocks, and a through seam or staggered seam splicing mode is adopted between rings. The connections of the inter-segment joints are longitudinal along the longitudinal axis of the tunnel and circumferential perpendicular to the longitudinal axis. The current common duct piece joint connection modes mainly comprise a bent bolt joint, a straight bolt joint, a multi-bolt joint, an inserted joint, a bolt joint, a TA-SRI NG joint and the like. Although the duct piece joint has various forms, the design concept still can not leave metal connecting pieces, and the metal connecting pieces are embedded in the concrete duct pieces or inserted between the duct pieces after the duct pieces are assembled into a ring to play the role of connection and fastening. The section of jurisdiction mainly uses bolted connection as the owner, reserves bolt hole on the section of jurisdiction (general axial connecting bolt hole reserves 6, and the hoop connecting bolt hole reserves 4).
The inventor finds that the duct piece adopted by the shield construction at present mainly has the following problems:
(1) The bolt hole is reserved in the duct piece, so that the difficulty in manufacturing the die is high, and the quality of the duct piece is difficult to guarantee due to excessive details on the duct piece. The reserved hole position under the action of external load is also the weak point of the duct piece, so that the duct piece is easy to damage;
(2) The waterproof weak link of the tunnel is determined by the way of bolt connection among the segments, not the segments, but the gaps among the segments and the rings when the segments form the rings;
(3) The automation degree of the form of bolt connection is not high, and the bolt is easy to rust.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a prefabricated shield segment formed by post-pouring, which is small in processing difficulty and convenient and quick to construct.
In order to realize the purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a prefabricated shield segment formed by post-casting, wherein first end surfaces of two sides along a circumferential direction are provided with first grooves, second end surfaces of two sides along a longitudinal direction are provided with second grooves, and the first grooves are communicated with the second grooves.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, where a first water stop strip is disposed on a first end face of one side of the post-cast prefabricated shield segment along the circumferential direction, and a second water stop strip is disposed on a second end face of one side of the post-cast prefabricated shield segment along the longitudinal direction.
In a second aspect, an embodiment of the present invention provides a post-cast prefabricated shield segment assembly, which is formed by splicing a plurality of segment rings in a longitudinal direction, where the segment rings are formed by splicing a plurality of post-cast prefabricated shield segments in the first aspect in the circumferential direction, a space formed by first grooves of two adjacent post-cast prefabricated shield segments in the circumferential direction is filled with a bonding material, and a space formed by second grooves of two adjacent post-cast prefabricated shield segment rings in the longitudinal direction is filled with a bonding material.
In combination with the second aspect, an embodiment of the present invention provides a possible implementation manner of the second aspect, in the segment ring, at least one post-cast prefabricated shield segment is provided with a grouting hole communicated with the inner space of the first groove or the second groove, and at least one post-cast prefabricated shield segment is provided with an exhaust hole communicated with the inner space of the first groove or the second groove.
In combination with the second aspect, an embodiment of the present invention provides a possible implementation manner of the second aspect, in which the grouting hole is provided in the post-cast prefabricated shield segment at the bottommost position in the segment ring.
In combination with the second aspect, an embodiment of the present invention provides a possible implementation manner of the second aspect, wherein the precast shield segment that is cast-after and formed at the topmost part in the segment ring is provided with the exhaust holes.
In combination with the second aspect, embodiments of the present invention provide a possible implementation manner of the second aspect, and the bonding material is concrete.
In combination with the second aspect, embodiments of the present invention provide a possible implementation manner of the second aspect, that adjacent tube sheets are joined together by circumferential staggered joint or through joint.
In a third aspect, an embodiment of the present invention provides a construction method for a post-cast prefabricated shield segment assembly according to the second aspect, where: the prefabricated shield segment formed by post-pouring is spliced to form a segment ring, the segment rings with the set number are spliced longitudinally, bonding materials are injected into a space formed by a first groove of the prefabricated shield segment formed by post-pouring and adjacent in the circumferential direction and a space formed by a second groove of the adjacent segment ring, the prefabricated shield segment formed by post-pouring and adjacent in the segment ring in the circumferential direction is bonded and fixed by the bonding materials, the adjacent segment rings are bonded and fixed by the bonding materials, and a plurality of segment rings are constructed by the same method until the construction is completed.
With reference to the third aspect, an embodiment of the present invention provides a possible implementation manner of the third aspect, after the segment rings are spliced, a supporting member is placed inside the segment rings, and the supporting member contacts with the inner side surfaces of the segment rings to temporarily support the segment rings.
The invention has the beneficial effects that:
1. according to the duct piece, the bolt holes reserved in the duct piece are omitted, the grooves in the first end face and the second end face of the duct piece are increased, the duct piece is simple in structure and free of special-shaped blocks, the design difficulty of a duct piece processing die is reduced by simplifying the details of the duct piece, large-scale production is facilitated, the quality of the duct piece is guaranteed, meanwhile, the weak points do not need to be arranged on the duct piece, and the damage to the duct piece is avoided.
2. According to the duct piece, the water stop strips are arranged on the first end face and the second end face, the duct piece has good waterproof performance after being spliced, hard contact between the duct pieces can be prevented in the duct piece splicing process, and the duct piece is protected.
3. According to the duct piece assembly, after the tunnel is formed, concrete is poured into the space of the first groove of the adjacent duct piece, and concrete is poured into the space of the second groove of the adjacent duct piece ring, so that the integrity of the tunnel is improved, and the problem of water leakage at the joint of the duct pieces is effectively solved by virtue of the bonding effect between the concrete and the duct pieces.
4. The segment assembly can effectively inhibit the phenomenon of slab staggering between segments due to shearing action after cast-in-place concrete is hardened, and ensure the appearance quality of a formed tunnel.
5. Compared with bolt installation, the construction method of the invention has the advantage that the concrete pouring is easier to realize mechanization and automation.
6. According to the construction method, the supporting piece is arranged, so that the stability of the pipe sheet ring before the concrete is hardened can be ensured, and the pipe sheet ring can be detached after the concrete curing period is finished and used for supporting the newly assembled pipe sheet ring.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a structural axis schematic view of a prefabricated shield segment cast after embodiment 1 of the invention;
fig. 2 is a schematic front view of a prefabricated shield segment structure cast and molded after embodiment 1 of the invention;
FIG. 3 is a schematic diagram of splicing two adjacent segments according to example 2 of the present invention;
FIG. 4 is a schematic view of the grouting holes according to embodiment 2 of the present invention;
FIG. 5 is a schematic diagram of the circular through seam splicing of adjacent pipe sheets in embodiment 2 of the present invention;
FIG. 6 is a schematic view of a cast-in-place concrete structure when adjacent pipe pieces are spliced together in a circular through seam manner according to embodiment 2 of the present invention;
FIG. 7 is a schematic view of ring staggered joint of adjacent pipe sheets according to embodiment 2 of the present invention;
FIG. 8 is a schematic view of a cast-in-place concrete structure when adjacent pipe pieces are connected together in a staggered joint manner according to embodiment 2 of the present invention;
FIG. 9 is a schematic view of the assembly of the supporting member and the segment ring according to example 3 of the present invention;
FIG. 10 is a schematic view of the duct piece assembly in the construction of the duct piece assembly according to embodiment 3 of the present invention;
the concrete pouring device comprises a base, a first groove, a second groove, a first water stop strip, a second groove, a second water stop strip, a concrete, a grouting hole, an exhaust hole and a support ring, wherein the first groove is 1, the first water stop strip is 2, the second groove is 3, the second water stop strip is 4, the concrete is 5, the grouting hole is 6, the exhaust hole is 7, and the support ring is 8.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up" and "down" in the present application, if any, are used merely to indicate correspondence with the directions of the upper and lower portions of the drawings, and are not intended to limit the structure, but merely to facilitate the description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or components so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
In the embodiment, the circumferential direction refers to the circumferential direction of the circumference of the pipe piece ring formed by splicing the pipe pieces, and the longitudinal direction refers to the direction along the longitudinal axis of the tunnel and is consistent with the definition of the circumferential direction and the longitudinal direction of the existing pipe piece.
Just as the background art introduces, present section of jurisdiction is connected with vertical adoption metal connecting piece along the hoop, and the section of jurisdiction mould is made alone big, and the section of jurisdiction fragile, degree of automation is not high when just assembling, and this application has provided a post-cast fashioned prefabricated shield structure section of jurisdiction.
In a typical implementation of this application, as shown in fig. 1-2, a post-cast forming's prefabricated shield constructs section of jurisdiction, has all seted up first recess 1 on the first terminal surface along the annular both sides, the cross-section of first recess is semi-circular, and semi-circular diameter is less than the width of first terminal surface for the plane of setting for the width is left to the both sides of first recess, and on the first terminal surface of one side wherein, be fixed with first sealing rod 2 on the plane of leaving out of first recess both sides, in this embodiment, first sealing rod adopts the rubber sealing rod.
When adjacent section of jurisdiction circumference concatenation, the first terminal surface contact that does not set up first sealing strip of the first sealing strip of one of them section of jurisdiction and another section of jurisdiction, when adjacent section of jurisdiction was along vertical concatenation, the second sealing strip of one of them section of jurisdiction and another section of jurisdiction did not set up the second terminal surface contact of second sealing strip, can effectively avoid the percolating water problem of section of jurisdiction concatenation seam department, and waterproof performance is good, can prevent the hard contact between the section of jurisdiction moreover in the section of jurisdiction assembly process, plays the effect of protection section of jurisdiction.
When can understand, the cross sectional shape of first recess and second recess also can adopt rectangle or other shapes, as long as satisfy two adjacent prefabricated shield segments along the hoop when splicing, the first recess of two segments can constitute a space, when two adjacent prefabricated shield segments along vertical concatenation, the second recess of two segments can constitute a space can.
The section of jurisdiction of this embodiment owing to cancelled the reservation bolt hole, has increased semicircular first recess and second recess, and simple structure does not have the dysmorphism piece, has reduced the design degree of difficulty of section of jurisdiction mold processing, and the scale production of being convenient for does not have the weak point in the section of jurisdiction moreover, and is not fragile, has guaranteed the quality of section of jurisdiction.
Example 2:
the embodiment discloses a post-cast prefabricated shield segment assembly, which is formed by splicing a plurality of segment rings in the longitudinal direction, wherein each segment ring is formed by splicing a plurality of segment rings in the circumferential direction of the post-cast prefabricated shield segment in a plurality of embodiment 1.
As shown in fig. 3, in the same segment ring, the first water stop strip of one of the post-cast prefabricated shield segments is tightly attached to the first end face of the other segment, which is not provided with the first water stop strip, and in the adjacent segment ring, the second water stop strip of one of the segment rings is tightly attached to the second end face of the other segment pipe, which is provided with the second water stop strip, so that the waterproofness is ensured.
In the same segment ring, the first grooves of two adjacent segments jointly form a first channel with a circular cross section and an axis arranged along the longitudinal direction, and the second grooves of two adjacent segment rings can form a second channel with a circular cross section and an axis arranged along the annular direction. Since the first groove and the second groove communicate with each other, the first passage and the second passage communicate with each other.
The first channel and the second channel are filled with bonding materials, the two adjacent pipe pieces in the pipe piece rings along the circumferential direction are fixedly connected through the bonding materials, and the two pipe piece rings adjacent along the longitudinal direction are bonded and fixed.
In this embodiment, the bonding material adopts cast-in-place concrete 5, and cast-in-place concrete can be in the same place the ring direction and the fine bonding of vertical adjacent section of jurisdiction, can also play fine water-proof effects when improving the tunnel wholeness. The phenomenon of slab staggering among the pipe pieces can be effectively prevented after the cast-in-place concrete is hardened.
In the embodiment, the concrete has the characteristic of early strength, and the expanding agent is added into the concrete, so that the filling and compacting are facilitated after the concrete is expanded moderately.
As shown in fig. 4, in this embodiment, at least one of the prefabricated shield segments in the segment ring is provided with a grouting hole 6, the grouting hole is communicated with the first groove or the second groove, preferably the second groove, at least one of the prefabricated shield segments is provided with an exhaust hole 7, the exhaust hole is communicated with the first groove or the second groove, preferably the second groove, and the grouting hole and the exhaust hole are both arranged on the inner arc surface of the segment.
The grouting holes are used for injecting concrete grout into the second channel, and the first channel is communicated with the second channel, so that the concrete grout can flow into the first channel and the second channel, and the pipe sheets are bonded and fixed in the circumferential direction and the longitudinal direction.
In this embodiment, in order to guarantee that concrete filling is closely knit, prevent phenomena such as cavity bubble from appearing, the slip casting hole sets up on the prefabricated shield pipe sheet of back pouring shaping of section of jurisdiction ring bottommost, the exhaust hole sets up on the prefabricated shield pipe sheet of back pouring shaping of section of jurisdiction ring topmost, and the slip casting hole injection of concrete from the bottom section of jurisdiction is followed to the air in the passageway, and the air is discharged from top exhaust hole.
In this embodiment, the adjacent duct pieces are longitudinally spliced by a through joint or a staggered joint, as shown in fig. 5, the through joint splicing refers to that the splicing seams of the adjacent two duct pieces at corresponding positions are on the same straight line in the two adjacent duct piece rings, the concrete structures formed in the first channel and the second channel are as shown in fig. 6, as shown in fig. 7, the staggered joint splicing refers to that the splicing seams of the adjacent two duct pieces at corresponding positions are not on the same straight line in the two adjacent duct piece rings, and the concrete structures formed in the first channel and the second channel are as shown in fig. 8.
Example 3:
the embodiment discloses a construction method of a prefabricated shield segment assembly formed by post-pouring in the embodiment 2, which comprises the following steps: the method comprises the following steps:
and determining the propelling distance of the shield tunneling machine every day according to the actual working condition, and further determining the number of the pipe sheet rings constructed every day.
In the segment assembly construction on the same day:
as shown in fig. 9 to 10, a plurality of prefabricated shield segments formed by post-casting according to embodiment 1 are spliced along the circumference by using construction equipment to form a segment ring, wherein in two adjacent segments, the first water stop strip of one segment is in contact with the first end face of the other segment where the first water stop strip is not arranged.
After the splicing of the segment rings is completed, a support piece is placed in the segment rings, each segment of the segment rings is supported, temporary support is formed, the support piece adopts a support ring 8 made of U-shaped steel, the outer side face of the support ring can be in contact with the inner side face of each segment ring, the segment rings are supported, after the construction of the support piece is completed, the next segment ring is spliced and the support piece is constructed by adopting the same method, and in two adjacent segment rings, the second water stop strip of one segment ring is tightly attached to the second end face of the other segment ring, which is not provided with the second water stop strip.
After the splicing of a plurality of segment rings is completed, concrete grout is injected into a first channel and a second channel which are formed after the grouting holes are spliced, so that in the same segment ring, two adjacent segments are bonded and fixed through concrete, and two adjacent segment rings are bonded and fixed through concrete.
And repeating the steps until the construction of all the segment rings is completed, wherein the segment rings which are constructed and maintained in the early stage are dismantled from the corresponding supporting pieces for supporting the segment rings in the subsequent construction.
The section of jurisdiction assembly of this embodiment utilizes the slip casting to realize the fixed of adjacent section of jurisdiction, for traditional adoption bolt fastening, realizes mechanization and automation more easily, and the efficiency of construction is higher, has shortened construction cycle.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (7)
1. A post-cast prefabricated shield segment assembly is characterized by being formed by longitudinally splicing a plurality of segment rings, wherein each segment ring is formed by splicing a plurality of post-cast prefabricated shield segments in an annular direction, a bonding material is filled in a space formed by first grooves of two adjacent post-cast prefabricated shield segments in the annular direction, and a bonding material is filled in a space formed by second grooves of two adjacent post-cast prefabricated shield segment rings in the longitudinal direction; the bonding material is cast-in-place concrete, so that circumferentially and longitudinally adjacent segments can be well bonded together, the integrity of the tunnel is improved, meanwhile, a waterproof effect can be achieved, and the phenomenon of slab staggering among the segments is effectively prevented;
the prefabricated shield segment formed by post-pouring is provided with first grooves on first end surfaces at two circumferential sides and second grooves on second end surfaces at two longitudinal sides, and the first grooves are communicated with the second grooves; the duct piece does not need to be provided with bolt holes, and is provided with the semicircular first groove and the semicircular second groove, so that the duct piece is simple in structure, does not have a special-shaped block, and can reduce the design difficulty of a duct piece processing die;
a first water stop strip is arranged on the first end face of one side of the shield segment along the circumferential direction, and a second water stop strip is arranged on the second end face of one side of the shield segment along the longitudinal direction; when adjacent section of jurisdiction ring direction concatenation, the first terminal surface contact that does not set up first sealing strip of the first sealing strip of one of them section of jurisdiction and another section of jurisdiction, when adjacent section of jurisdiction is along vertical concatenation, the second sealing strip of one of them section of jurisdiction and another section of jurisdiction do not set up the second terminal surface contact of second sealing strip, can effectively avoid the percolating water problem of section of jurisdiction concatenation seam department, and waterproof performance is good to can prevent the hard contact between the section of jurisdiction, play the guard action.
2. The post-cast prefabricated shield segment assembly of claim 1, wherein in said segment ring, at least one post-cast prefabricated shield segment is provided with a grouting hole communicating with the interior space of the first groove or the second groove, and at least one post-cast prefabricated shield segment is provided with an exhaust hole communicating with the interior space of the first groove or the second groove.
3. The post-cast prefabricated shield segment assembly of claim 2, wherein the bottom-most post-cast prefabricated shield segment of the segment ring is provided with grouting holes.
4. The cast-in-place preformed shield segment assembly of claim 2, wherein the top-most cast-in-place preformed shield segment of the segment ring is provided with vent holes.
5. The post-cast prefabricated shield segment assembly of claim 1, wherein adjacent segments are joined together by staggered or through joints.
6. The construction method of the post-cast prefabricated shield segment assembly of any one of claims 1-5, characterized in that the post-cast prefabricated shield segments are spliced to form segment rings, a set number of segment rings are spliced in the longitudinal direction, a bonding material is injected into a space formed by first grooves of circumferentially adjacent post-cast prefabricated shield segments and a space formed by second grooves of adjacent segment rings, the circumferentially adjacent post-cast prefabricated shield segments in the segment rings are bonded and fixed by the bonding material, the adjacent segment rings are bonded and fixed by the bonding material, and a plurality of segment rings are constructed by the same method until the construction is completed.
7. The construction method of the post-cast prefabricated shield segment assembly according to claim 6, wherein after the segment rings are spliced, the supporting members are placed inside the segment rings and are in contact with the inner side surfaces of the segment rings to temporarily support the segment rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011007500.XA CN112160769B (en) | 2020-09-23 | 2020-09-23 | Prefabricated shield segment formed by post-pouring, segment assembly and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011007500.XA CN112160769B (en) | 2020-09-23 | 2020-09-23 | Prefabricated shield segment formed by post-pouring, segment assembly and construction method |
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| CN112160769A CN112160769A (en) | 2021-01-01 |
| CN112160769B true CN112160769B (en) | 2023-03-21 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761344A (en) * | 2010-01-14 | 2010-06-30 | 华南理工大学 | Prefabricated pipe section for shield tunnel and preparation method thereof |
| CN201599040U (en) * | 2010-01-14 | 2010-10-06 | 广州市市政集团有限公司 | Prefabricated segments for shield tunneling |
| CN205091090U (en) * | 2015-09-23 | 2016-03-16 | 同济大学 | Experimental test piece of using of shield tunnel section of jurisdiction circumferential weld impervious performance |
| CN110821518A (en) * | 2019-12-10 | 2020-02-21 | 中铁十九局集团轨道交通工程有限公司 | Grouting plugging waterproof shield segment structure and construction method thereof |
| CN110985043A (en) * | 2019-12-10 | 2020-04-10 | 西南交通大学 | Shield method hydraulic pressure tunnel lining structure |
-
2020
- 2020-09-23 CN CN202011007500.XA patent/CN112160769B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761344A (en) * | 2010-01-14 | 2010-06-30 | 华南理工大学 | Prefabricated pipe section for shield tunnel and preparation method thereof |
| CN201599040U (en) * | 2010-01-14 | 2010-10-06 | 广州市市政集团有限公司 | Prefabricated segments for shield tunneling |
| CN205091090U (en) * | 2015-09-23 | 2016-03-16 | 同济大学 | Experimental test piece of using of shield tunnel section of jurisdiction circumferential weld impervious performance |
| CN110821518A (en) * | 2019-12-10 | 2020-02-21 | 中铁十九局集团轨道交通工程有限公司 | Grouting plugging waterproof shield segment structure and construction method thereof |
| CN110985043A (en) * | 2019-12-10 | 2020-04-10 | 西南交通大学 | Shield method hydraulic pressure tunnel lining structure |
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| CN112160769A (en) | 2021-01-01 |
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