CN105673036B - The prefabricated tunnel of shield node and construction method when shield is passed through up and down - Google Patents
The prefabricated tunnel of shield node and construction method when shield is passed through up and down Download PDFInfo
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- CN105673036B CN105673036B CN201610047506.7A CN201610047506A CN105673036B CN 105673036 B CN105673036 B CN 105673036B CN 201610047506 A CN201610047506 A CN 201610047506A CN 105673036 B CN105673036 B CN 105673036B
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- 238000010276 construction Methods 0.000 title claims abstract description 40
- 238000009412 basement excavation Methods 0.000 claims description 6
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 238000007596 consolidation process Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 241000209094 Oryza Species 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- 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
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- 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
-
- 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
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The prefabricated tunnel of shield node and construction method when being passed through up and down the present invention relates to a kind of shield, the shield that is particularly suitable for use in pass through complicated construction situation up and down.Prefabricated shield node tunnel structure is pre-buried to specified location, and when shield is passed through, sky, which pushes away, in precast construction crosses.Adopting said method carries out the construction in shield node tunnel, has effectively evaded construction risk when being tunneled in the case of shield is passed through down on the line.
Description
Technical field
The invention belongs to the technical field of tunnel structure, and in particular to a kind of new knot of precast assembly in shield node tunnel
Structure, the shield that is particularly suitable for use in pass through up and down in the case of shield-tunneling construction, shield node is pre- when passing through up and down for specially a kind of shield
Tunnel processed and construction method.
Background technology
The foundation of City Underground Transportation system plays vital effect to the urban traffic blocking for alleviating growing tension.
In January, 2015, National Development and Reform Committee official approval Jinan City track traffic immediate plan, so far, middle national expenditures more than 50 years
Time allow all municipalities directly under the Central Government and Vico-provincial Cities all to be become attached to subway.With the constantly improve of Urban Rail Transit, apply
Work environment becomes increasingly complicated.The situation that shield running tunnel passes through up and down becomes more and more, and shield is in above-mentioned complex conditions
Lower driving easily triggers various security incidents, or even no longer possesses shield-tunneling construction condition.Therefore, shield node tunnel how is ensured
Safe construction be worth causing concern.
Because earth's surface, underground building thing are intensive, shield-tunneling construction space is more and more narrower, two shields of a subway line
Occurs the situation that shield is passed through up and down during structure tunnel piercing unavoidably.Processing mode universal at present is that stratum upper and lower tunnel is entered
Row grouting and reinforcing, under mitigating（On）Row constructing tunnel is to upper（Under）The influence in row tunnel, but the construction of newly built tunnels is to existing
The influence of tunnel deformation is inevitable, gently then influences the train operation in existing tunnel, it is heavy then under existing tunnel can be caused integrally
Fall into, cave in, trigger serious accident.
The content of the invention
It is an object of the invention to be provided for above-mentioned problem, to pass through shield node above and below a kind of shield prefabricated
Assembled tunnel and construction method.Prefabricated shield node tunnel structure is pre-buried to specified location, when shield is passed through, prefabricated
Sky, which pushes away, in structure crosses.Adopting said method carries out the construction in shield node tunnel, has effectively evaded shield and has passed through down on the line
In the case of tunnel when construction risk.
In order to realize the above object the present invention uses following technical proposals.
A kind of shield passes through shield node precast assembly tunnel up and down, it is characterised in that by pass through up and down four shields
Tunnel is incorporated at one, and four shield tunnels are respectively independent prefabricated tunnel, described prefabricated tunnel include top plate, bottom plate and
The side wall being connected with top plate and bottom plate, chamfering is provided with the position that top plate is connected with side wall, is connected in bottom plate with side wall
Position be provided with chamfering, with height two tunnels be attached at side wall position with bolt；Bottom plate and lower floor in upper strata tunnel
The top plate prepared screw-bolt hole in tunnel, levels tunnel is connected as entirety with bolt.
Four prefabricated tunnel is individually prefabricated.
Every prefabricated tunnel difference one-piece casting shaping.
When every prefabricated length of tunnel is long to cause template construction, transport, lifting inconvenient, sectional carries out prefabricated, connection
Position prepared screw-bolt hole, it is connected by screw bolts after lifting is in place, i.e. every tunnel is bolted by the prefabricated tunnel construction sections of multistage
Composition；Prefabricated tunnel is attached at side wall position with bolt, strengthens globality.
Preferably, to make prefabricated, transport, lifting more convenient, prefabricated tunnel also can be pre- by top plate, bottom plate, side wall piecemeal
System, top plate are connected to become entirety with side wall by tenon and tongue-and-groove, and bottom plate is realized also by the mode of joggle with side wall and is connected.
Shield node precast assembly method for tunnel construction when a kind of shield is passed through up and down, comprises the following steps：
（One）It is outer on construction ground to make prefabricated tunnel
The prefabrication step in prefabricated tunnel is：The template in prefabricated tunnel is made, banding steel cage, need to be entered in prefabricated tunnel sidewalls
Row bolt connection position prepared screw-bolt hole, up the prefabricated tunnel roof of prefabricated tunnel floor and lower section need to carry out bolted connection
Position prepared screw-bolt hole, placing concrete, maintenance, removes template；
（Two）Foundation pit excavation and bracing
（1）Excavation pit carries out foundation pit stope support to the prefabricated tunnel floor projected depth in lower section；
（2）Slip casting is carried out in the range of 3-5 rice below the compacting of hole bottom or hole bottom, carries out hole bottom stratum consolidation；
（Three）The prefabricated tunnel in construction lower section
（1）Transport, the prefabricated tunnel of lifting lower section to specified location；
（2）Prefabricated tunnel sidewalls position is connected with；
（Four）Foundation ditch part backfills
Foundation ditch is backfilled at the prefabricated tunnel roof top surface in lower section, backfill rammed earth in foundation ditch；
（Five）The prefabricated tunnel in construction top
（1）Transport, the prefabricated tunnel of lifting top to specified location, make the reserved bolt hole of the prefabricated tunnel floor in top with
The reserved bolt hole alignment of the prefabricated tunnel roof in lower section；
（2）Prefabricated tunnel sidewalls position is connected with；
（3）The prefabricated tunnel floor in top is connected with the prefabricated tunnel roof in lower section；
（4）Banket, be compacted in prefabricated tunnel；
（Six）Foundation ditch backfills, and recovers road surface
After the completion of the prefabricated tunnel transport of upper and lower, splicing operation, foundation ditch backfill, recover road surface；
（Seven）Shield driving, four shield tunnels are formed, be followed successively by shield tunnel on the left of upper strata, shield tunnel on the right side of upper strata
Shield tunnel, lower floor's right side shield tunnel on the left of road, lower floor.
During construction, lower floor's tunnel foundation ditch is first excavated, the prefabricated tunnel of lower floor is lifted in place and connection spiral shell in side wall position is installed
Bolt is fixed, and after foundation ditch is backfilled to the prefabricated tunnel top of lower floor and is compacted, then the prefabricated tunnel in upper strata is lifted in place and installs side wall
Position connecting bolt is fixed.Then, levels tunnel connecting bolt is installed, four tunnels is connected to become entirety.
Beneficial effects of the present invention are：
1st, the construction in shield node tunnel is carried out using this structure, has effectively been evaded in the case of shield passes through down on the line
Construction risk during driving, effectively ensure that construction safety.
2nd, prefabricated shield node tunnel structure is just prefabricated before arrival completes, is pre-buried in place, direct during arrival
Pushed away in inside configuration sky by eliminating closely-spaced tunnel construction infection, the duration greatly being shortened again while ensureing safe.
3. the prefabricated tunnel structure is simple, and can divide situation prefabricated, it is easy to construct and uses.
In a word, pass through up and down four shield tunnels are incorporated at one, realized by pre-buried precast construction by the present invention
" zero spacing " construction of narrow space shield tunnel, breaches space limitation.
Brief description of the drawings
Fig. 1 is prefabricated tunnel sidewalls bolt connection figure；
Fig. 2 is the prefabricated tunnel precast block figure of shield crossing；
Fig. 3 is the prefabricated tunnel plan of shield crossing；
Fig. 4 is elevation before the prefabricated tunnel of shield crossing；
Fig. 5 is the prefabricated tunnel side elevational view of shield crossing；
Fig. 6 is shield crossing schematic three dimensional views.
In figure, 1- chamferings, 9 be bolt；10 be top plate；11 be bottom plate；12 be side wall；13 be prefabricated tunnel on the left of upper strata；
14 be prefabricated tunnel on the right side of upper strata；15 be prefabricated tunnel on the left of lower floor；16 be prefabricated tunnel on the right side of lower floor；17 be shield on the left of upper strata
Structure tunnel；18 be shield tunnel on the right side of upper strata；19 be shield tunnel on the left of lower floor；20 be lower floor on the right side of shield tunnel, 21- top plates
Tenon, 22- side wall tongue-and-grooves, 23- side wall tenons, 24- bottom plate tongue-and-grooves.
Embodiment
Technical scheme is described in detail below by specific embodiment.
Embodiment 1
A kind of shield passes through shield node precast assembly tunnel up and down, and pass through up and down four shield tunnels are incorporated into one
Place, four shield tunnels are respectively independent prefabricated tunnel, described prefabricated tunnel include top plate 10, bottom plate 11 and with top plate 10
The side wall 12 being connected with bottom plate 11, chamfering 1 is provided with the position that top plate 10 is connected with side wall 12, in bottom plate 11 and side wall
The position of 12 connections is provided with chamfering 1, is attached with two tunnels of height in side wall position bolt 9；At the bottom in upper strata tunnel
The prepared screw-bolt hole of top plate 10 of plate 11 and lower floor tunnel, levels tunnel is connected as entirety with bolt 9, that is, is followed successively by a upper strata left side
Prefabricated tunnel 14 on the right side of the prefabricated tunnel 13 in side, upper strata；Prefabricated tunnel 15 on the left of lower floor；Prefabricated tunnel 16 on the right side of lower floor；In formation
Under the shield node that passes through.
Four prefabricated tunnel is individually prefabricated.
Every prefabricated tunnel difference one-piece casting shaping.
When every prefabricated length of tunnel is long to cause template construction, transport, lifting inconvenient, sectional carries out prefabricated, connection
Position prepared screw-bolt hole, it is connected by screw bolts after lifting is in place, i.e. every tunnel is bolted group by the prefabricated tunnel of multistage
Into；Prefabricated tunnel is attached in side wall position bolt 9, strengthens globality.
Preferably, to make prefabricated, transport, lifting more convenient, prefabricated tunnel also can be by top plate 10, bottom plate 11, side wall 12
Precast block, top plate and side wall docking site are connected to become entirety by top plate tenon 21 and side wall tongue-and-groove 22, similarly, bottom plate with
Realized and be connected with the mode of joggle with side wall tenon 23 also by bottom plate tongue-and-groove 24 in side wall docking site.
Embodiment 2
Shield node precast assembly method for tunnel construction when a kind of shield is passed through up and down, comprises the following steps：
（One）It is outer on construction ground to make prefabricated tunnel
The prefabrication step in prefabricated tunnel is：The template in prefabricated tunnel is made, banding steel cage, need to be entered in prefabricated tunnel sidewalls
Row bolt connection position prepared screw-bolt hole, up the prefabricated tunnel roof of prefabricated tunnel floor and lower section need to carry out bolted connection
Position prepared screw-bolt hole, placing concrete, maintenance, removes template；
（Two）Foundation pit excavation and bracing
（1）Excavation pit carries out foundation pit stope support to the prefabricated tunnel floor projected depth in lower section；
（2）Slip casting is carried out in the range of 3-5 rice below the compacting of hole bottom or hole bottom, carries out hole bottom stratum consolidation；
（Three）The prefabricated tunnel in construction lower section
（1）Transport, the prefabricated tunnel of lifting lower section to specified location；
（2）Prefabricated tunnel sidewalls position is connected with；
（Four）Foundation ditch part backfills
Foundation ditch is backfilled at the prefabricated tunnel roof top surface in lower section, backfill rammed earth in foundation ditch；
（Five）The prefabricated tunnel in construction top
（1）Transport, the prefabricated tunnel of lifting top to specified location, make the reserved bolt hole of the prefabricated tunnel floor in top with
The reserved bolt hole alignment of the prefabricated tunnel roof in lower section；
（2）Prefabricated tunnel sidewalls position is connected with；
（3）The prefabricated tunnel floor in top is connected with the prefabricated tunnel roof in lower section；
（4）Banket, be compacted in prefabricated tunnel；
（Six）Foundation ditch backfills, and recovers road surface
After the completion of the prefabricated tunnel transport of upper and lower, splicing operation, foundation ditch backfill, recover road surface；
（Seven）Shield driving, four shield tunnels are formed, be followed successively by shield tunnel 17 on the left of upper strata, shield tunnel on the right side of upper strata
Shield tunnel 19, lower floor's right side shield tunnel 20 on the left of road 18, lower floor.
During construction, lower floor's tunnel foundation ditch is first excavated, the prefabricated tunnel 15,16 of lower floor is lifted in place and side wall position horizontal stroke is installed
Fixed to connecting bolt 9, after foundation ditch is backfilled to the top of the prefabricated tunnel of lower floor 15,16 and is compacted, then by the prefabricated tunnel 13,14 in upper strata
Lift in place and side wall position lateral connection bolt 9 is installed and fix.Then, levels tunnel connecting bolt 21 is installed, makes four
Tunnel is connected to become entirety.
Claims (5)
1. a kind of shield passes through shield node precast assembly tunnel up and down, it is characterised in that by pass through up and down four shield tunnels
Road is incorporated at one, and four shield tunnels are respectively independent prefabricated tunnel, described prefabricated tunnel include top plate, bottom plate and with
The side wall that top plate and bottom plate are connected, chamfering is provided with the position that top plate is connected with side wall, is connected in bottom plate with side wall
Position is provided with chamfering, is attached with two tunnels of height at side wall position with bolt；Bottom plate and lower floor's tunnel in upper strata tunnel
The top plate prepared screw-bolt hole in road, levels tunnel is connected as entirety with bolt；The construction method in the tunnel, including following step
Suddenly：
（One）It is outer on construction ground to make prefabricated tunnel
The prefabrication step in prefabricated tunnel is：The template in prefabricated tunnel is made, banding steel cage, spiral shell need to be carried out in prefabricated tunnel sidewalls
Bolt connecting portion prepared screw-bolt hole, up the prefabricated tunnel roof of prefabricated tunnel floor and lower section it is pre- need to carry out bolt connection position
Bolt hole is stayed, placing concrete, maintenance, removes template；
（Two）Foundation pit excavation and bracing
（1）Excavation pit carries out foundation pit stope support to the prefabricated tunnel floor projected depth in lower section；
（2）Slip casting is carried out in the range of 3-5 rice below the compacting of hole bottom or hole bottom, carries out hole bottom stratum consolidation；
（Three）The prefabricated tunnel in construction lower section
（1）Transport, the prefabricated tunnel of lifting lower section to specified location；
（2）Prefabricated tunnel sidewalls position is connected with；
（Four）Foundation ditch part backfills
Foundation ditch is backfilled at the prefabricated tunnel roof top surface in lower section, backfill rammed earth in foundation ditch；
（Five）The prefabricated tunnel in construction top
（1）Transport, the prefabricated tunnel of lifting top make the reserved bolt hole of the prefabricated tunnel floor in top and lower section to specified location
The reserved bolt hole alignment of prefabricated tunnel roof；
（2）Prefabricated tunnel sidewalls position is connected with；
（3）The prefabricated tunnel floor in top is connected with the prefabricated tunnel roof in lower section；
（4）Banket, be compacted in prefabricated tunnel；
（Six）Foundation ditch backfills, and recovers road surface
After the completion of the prefabricated tunnel transport of upper and lower, splicing operation, foundation ditch backfill, recover road surface；
（Seven）Shield driving, form four shield tunnels, be followed successively by shield tunnel on the left of upper strata, shield tunnel on the right side of upper strata, under
Shield tunnel on the right side of layer left side shield tunnel, lower floor.
2. shield according to claim 1 passes through shield node precast assembly tunnel up and down, it is characterised in that four prefabricated
Tunnel is individually prefabricated.
3. shield according to claim 2 passes through shield node precast assembly tunnel up and down, it is characterised in that every prefabricated
Tunnel difference one-piece casting shaping.
4. shield according to claim 1 passes through shield node precast assembly tunnel up and down, it is characterised in that every tunnel
It is segmented prefabricated, i.e. every tunnel is bolted by the prefabricated tunnel construction sections of multistage and formed；With two prefabricated tunnels of height in side wall
Position is attached with bolt.
5. shield according to claim 1 passes through shield node precast assembly tunnel up and down, it is characterised in that prefabricated tunnel
By top plate, bottom plate, side wall precast block, top plate is connected to become entirety with side wall by tenon and tongue-and-groove, and bottom plate also leads to side wall
The mode for crossing joggle realizes connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610047506.7A CN105673036B (en) | 2016-01-25 | 2016-01-25 | The prefabricated tunnel of shield node and construction method when shield is passed through up and down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610047506.7A CN105673036B (en) | 2016-01-25 | 2016-01-25 | The prefabricated tunnel of shield node and construction method when shield is passed through up and down |
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| Publication Number | Publication Date |
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| CN105673036A CN105673036A (en) | 2016-06-15 |
| CN105673036B true CN105673036B (en) | 2017-11-17 |
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| CN106223969A (en) * | 2016-08-30 | 2016-12-14 | 中铁隧道勘测设计院有限公司 | One closely upper and lower overlap or shield tunnel construction method of closely intersecting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3520484B2 (en) * | 1995-09-20 | 2004-04-19 | 清水建設株式会社 | Construction method of underground structure |
| CN1080355C (en) * | 1996-09-02 | 2002-03-06 | 阎瑞明 | Segmental prefabricating negative pressure sealing submarine tunnel prefabricated components and construction method thereof |
| JP2001220989A (en) * | 2000-02-09 | 2001-08-17 | Taisei Corp | Method for modifying concrete structure having hollow cross section |
| CN1626738A (en) * | 2003-12-09 | 2005-06-15 | 邝伟强 | Full prefabricated packaged type tunnel as far as zero earth backing |
| JP2010229749A (en) * | 2009-03-27 | 2010-10-14 | Taisei Corp | Box for tunnel |
| CN101886401B (en) * | 2010-07-14 | 2012-07-04 | 广州永联钢结构有限公司 | Segmented assembly component of steel end housings of underwater tunnel immersed segment and construction method |
| CN102536262A (en) * | 2012-03-06 | 2012-07-04 | 四川省岷源水利水电工程设计有限公司 | Prefabricated power tunnel and mounting method thereof |
| CN104762993A (en) * | 2015-02-11 | 2015-07-08 | 中国铁建大桥工程局集团有限公司 | Splicing type construction method of urban lake-passing tunnel |
| CN204920961U (en) * | 2015-09-07 | 2015-12-30 | 济南轨道交通集团有限公司 | Adopt underground station of prefabricated component construction |
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