CN109267565A - For shield launching and receive the closure door structure and its construction method in construction - Google Patents
For shield launching and receive the closure door structure and its construction method in construction Download PDFInfo
- Publication number
- CN109267565A CN109267565A CN201811300719.1A CN201811300719A CN109267565A CN 109267565 A CN109267565 A CN 109267565A CN 201811300719 A CN201811300719 A CN 201811300719A CN 109267565 A CN109267565 A CN 109267565A
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- CN
- China
- Prior art keywords
- steel
- concrete
- steel plate
- sulphur
- shield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 92
- 239000010959 steel Substances 0.000 claims abstract description 92
- 239000004567 concrete Substances 0.000 claims abstract description 72
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000005864 Sulphur Substances 0.000 claims abstract description 44
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 33
- 230000002787 reinforcement Effects 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000004804 winding Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
- E02D5/187—Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints
-
- 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A kind of closure door structure and its construction method in shield launching and reception construction, diaphram wall is embedded in concrete as skeleton by steel reinforcement cage and is formed, the corresponding shield circle perforation sections bottom transverse weld of steel reinforcement cage has one block of bottom steel plate, vertically it is welded on the upper opening steel form of the left and right side composition square of bottom steel plate respectively with two blocks of side steel plates of size with bottom steel plate, corresponding vertical reinforcement is mutually welded with bottom steel plate upper and lower surfaces on steel reinforcement cage, and transverse weld has more reinforcing bars between two blocks of side steel plates；The length of above-mentioned bottom steel plate is that tunnel diameter adds 1m, and with a thickness of 2cm to 5cm, width is equal to the thickness of diaphram wall；Around sulphur concrete is built in upper opening steel form, the diaphram wall body other than upper opening steel form pours for normal concrete；The present invention solves the problems, such as that traditional shield method winding cutter head, cutter head and reinforcing bar are very stiff and demanding and the characteristics of pull periphery concrete, have and reduce the loss of shield machine cutter head, improve shield efficiency.
Description
Technical field
The present invention relates to the mating structures in shield machine construction, and in particular to cooperates in shield launching and reception construction
The concrete closure door structure and its construction method used.
Background technique
Diaphram wall uses reinforced concrete structure, whole or substep lifting steel reinforcement cage, integral cast-in-situ concrete, shield
Machine penetrates through diaphram wall.
During constructing tunnel, shield machine is being originated in receive process, is penetrated through to diaphram wall, shield machine cutter head meeting
Generate very big abrasion.Reinforcing bar can wind cutter head, while periphery reinforcing bar can tear periphery concrete, cause periphery concrete cracking,
A series of problems, such as shield driving is difficult, causes that shield driving low efficiency, time-consuming, cost is high.
For shield machine during penetrating through diaphram wall, cutter head directly contacts concrete, therefore can generate biggish cutter head
Abrasion.The reinforcing bar and cutter head of exposure are the processes of " very stiff and demanding ", and tool bit abrasion is more serious.
And the part reinforcing bar of exposure can wind cutter head, have an adverse effect to shield.And the reinforcing bar for being wrapped in cutter head can be right
Tunnel and the hole week concrete of diaphram wall handover generate the effect of pullling, and this additional tensile stress will increase cutter head deformation and mill
Consumption, and cause periphery concrete cracking.
Diaphram wall uses fiber bar (fibre reinforced composites) concrete structure, mixed instead of the reinforcing bar of above scheme
Solidifying soil.To reduce shield machine tool bit abrasion, less reinforcing bar winding cutter head phenomenon.But this scheme still has following deficiency
Place:
When excavation of foundation pit, fiber bar cage is lifted, under Gravitative Loads, the unfavorable percussion of site operation, fiber steel reinforcing brittle failure is existing
As serious, need to carry out the lifting of steel reinforcement cage using segmentation, framing means, construction process requirement is high, and the construction period is long.
It still will appear small part fiber bar winding cutter head simultaneously and pull periphery concrete phenomenon, wear cutter head and make
At periphery concrete cracking.
Summary of the invention
In order to solve the problems in the prior art, the purpose of the present invention is to and providing a kind of effectively can avoid reinforcing bar to shield machine
Cutter head causes the closure door structure of abrasion being used in shield launching and reception construction.
The object of the present invention is achieved like this: it is a kind of for shield launching and the closure door structure received in construction, including
Diaphram wall: being embedded in concrete as skeleton by steel reinforcement cage and formed, steel reinforcement cage corresponding shield circle perforation area
Domain bottom is laterally welded with one block of bottom steel plate, is vertically welded on bottom steel plate respectively with two blocks of side steel plates of size with bottom steel plate
Left and right side forms the upper opening steel form of square, and corresponding vertical reinforcement is mutually welded with bottom steel plate upper and lower surfaces on steel reinforcement cage
It connects, transverse weld has more reinforcing bars between two blocks of side steel plates；The length of above-mentioned bottom steel plate is that tunnel diameter adds 1m, with a thickness of 2cm
To 5cm, width is equal to the thickness of diaphram wall；Around building sulphur concrete in upper opening steel form, other than upper opening steel form
Diaphram wall body poured for normal concrete；
The weight ratio of the sulphur concrete forms are as follows: sulphur: sand: cement: industrial paraffin 1:1.3:0.4:0.02.
It is yet another object of the invention to provide a kind of for shield launching and receives the construction party of the closure door structure in construction
Method.
A further object of the present invention be achieved in that it is described closure door structure construction method the following steps are included:
1) the upper opening steel form construction of sulphur concrete protection wall is perfused: in the corresponding round perforation sections bottom welding of steel reinforcement cage
One block of bottom steel plate, bottom plate size: a length of tunnel diameter adds 1m, thickness 2cm to 5cm, and width is diaphram wall thickness, vertical steel
Muscle is welded on bottom steel plate upper and lower surface, to provide vertical supporting power, the globality of reinforcing steel bar cage；In bottom steel plate two sides, welding 2
Block welds more cross-brace reinforcing bars between 2 blocks of side steel plates with dimension side steel plate, outside the more cross-brace reinforcing bars and side steel plate
The transverse steel of side corresponds, to provide cross-brace power；Upper opening steel form is fixed form；
2) pour sequence: when pulling out conduit, casting concrete is high to design top mark, first pours normal silicate concrete and is poured onto out
At mouthful, sulphur concrete is then poured in template, partially pours normal silicate concrete on last diaphram wall；It extracts
Locking notch pipe or connector case, maintain into wall；
3) melt sulphur concrete after excavating: heating equipment heating and melting penetrates through region sulphur concrete to liquid-plastic state, uses
The sulphur concrete of liquid-plastic state is transported to outside hole by Transport Machinery；
4) reinforcing bar is manually cut: after perforation region sulphur concrete melts, reinforcing bar exposure, using the artificial cutting of steel of bar cutter
Muscle；Heating equipment stops heating, and hole week sulphur concrete restores to former intensity.
Compared with prior art, the beneficial effects of the present invention are:
(1)) present invention sets about filling using a kind of New Style Concrete Materials to underground continuous wall-enclosure structure middle seal door from material
Divide the characteristic using sulphur concrete, substitutes Conventional Portland concrete in perforation region；It is in the sulphur of liquid-plastic state after heating
Concrete, perforation are easy, greatly reduction tool bit abrasion.
(2) reinforcing bar exposes, and can be not in the process of shield machine cutter head Yu reinforcing bar " very stiff and demanding " by manually cutting, solution
Certainly traditional shield method winding cutter head, cutter head and reinforcing bar are very stiff and demanding and pull periphery concrete problem.
(3) sulphur concrete for pouring sequentially solution that the present invention is special pours problem, and then solves diaphram wall and enclose
The problem that protection structure closure door is abolished.
(4) it shortens the construction period, improves shield efficiency.
Detailed description of the invention
Fig. 1 is that the present invention pours the schematic diagram for completing diaphram wall.
Fig. 2 is the construction schematic diagram of steel reinforcement cage of the present invention and upper opening steel form.
Fig. 3 is artificial cutting of steel muscle schematic diagram of the invention.
Fig. 4 is shield crossing closure door schematic diagram of the present invention.
Specific embodiment
Fig. 2 shows a kind of for shield launching and the closure door structure received in construction, including diaphram wall: by reinforcing bar
Cage is embedded in concrete as skeleton and forms, and the steel reinforcement cage 1 corresponding shield circle perforation sections bottom transverse weld has
One piece of bottom steel plate 2a is formed with bottom steel plate with two pieces of sides steel plate 2b, 2c of size left and right side for being vertically welded on bottom steel plate respectively
The upper opening steel form of square, corresponding vertical reinforcement is mutually welded with bottom steel plate upper and lower surfaces on steel reinforcement cage 1, two blocks of side steel
Transverse weld has more reinforcing bars between plate 2b, 2c；The length of above-mentioned bottom steel plate 2a is that tunnel diameter adds 1m, extremely with a thickness of 2cm
5cm, width are equal to the thickness of diaphram wall；Around building sulphur concrete 4 in upper opening steel form, other than upper opening steel form
Diaphram wall body is that normal concrete pours 3；
The weight ratio of the sulphur concrete forms are as follows: sulphur: sand: cement: industrial paraffin is 1:1.3:0.4:0.02(referring to figure
3, Fig. 4).Bottom steel plate midpoint is located at the lowest point (6 o'clock position) of shield border circular areas.
Seal up a door structure construction method the following steps are included:
1) the upper opening steel form construction of sulphur concrete protection wall is perfused: in the corresponding round perforation sections bottom welding of steel reinforcement cage
One block of bottom steel plate, bottom plate size: a length of tunnel diameter adds 1m, thickness 2cm to 5cm, and width is diaphram wall thickness, and more perpendicular
To reinforcement welding in bottom steel plate upper and lower surface, to provide vertical supporting power, the globality of reinforcing steel bar cage；In bottom steel plate two sides,
2 pieces of welding welds more cross-brace reinforcing bars between 2 blocks of side steel plates, the more cross-brace reinforcing bars and side with dimension side steel plate
Transverse steel on the outside of steel plate corresponds, to provide cross-brace power；Upper opening steel form is fixed form；
2) pour sequence: when pulling out conduit, casting concrete is high to design top mark, first pours normal silicate concrete and is poured onto out
At mouthful, sulphur concrete is then poured in template, partially pours normal silicate concrete on last diaphram wall；It extracts
Locking notch pipe or connector case, maintain into wall；
3) melt sulphur concrete after excavating: heating equipment heating and melting penetrates through region sulphur concrete to liquid-plastic state, uses
The sulphur concrete of liquid-plastic state is transported to outside hole by Transport Machinery；
4) manually cut reinforcing bar: after perforation region sulphur concrete melts, reinforcing bar exposure is manually cut into using bar cutter
Reveal reinforcing bar 5(Fig. 3)；Heating equipment stops heating, and hole week sulphur concrete restores to former intensity.
Sulphur concrete has good corrosion resistance and density, and fusing point is low.Sulphur concrete is thermoplastic material, exposure
In the environment of thermal cycle, heat-resisting quantity, durability is poor.Therefore sulphur concrete is used to replace Conventional Portland concrete,
Its characteristic is made full use of, in diaphram wall shield launching, reaches closure door region using sulphur concrete, shield cutter passes through this
When region, sulphur concrete closure door structure is heated with heating equipment, at this point, sulphur concrete is in liquid-plastic state, exposure
Reinforcing bar can manually cut (referring to Fig. 3).
Fig. 4 is shown, the sulphur concrete in the upper opening template of the head tunneling direction face closure door structure of shield machine 6
Position.The reinforcing bar 5 penetrated through in region in Fig. 4 is manually cut off.
Abbreviation and Key Term definition:
Sulphur concrete: sulphur concrete is mainly formed by sulphur and thick, fine aggregate, and the novel building of a small amount of toughener is added
Material.
Diaphram wall closure door: the door opening structure in diaphram wall body to shield launching, receives.
Claims (2)
1. it is a kind of for shield launching and the closure door structure received in construction, including, diaphram wall: by steel reinforcement cage as skeleton
It is embedded in concrete and forms, which is characterized in that the corresponding shield circle of the steel reinforcement cage (1) penetrates through sections bottom transverse weld
There is one piece of bottom steel plate (2a), is vertically welded on the left and right of bottom steel plate respectively with two pieces of side steel plates (2b, 2c) of size with bottom steel plate
Side forms the upper opening steel form (2) of square, and corresponding vertical reinforcement is mutually welded with bottom steel plate upper and lower surfaces on steel reinforcement cage (1)
It connects, transverse weld has more reinforcing bars between two pieces of side steel plates (2b, 2c)；The length of above-mentioned bottom steel plate (2a) adds for tunnel diameter
1m, with a thickness of 2cm to 5cm, width is equal to the thickness of diaphram wall；Around building sulphur concrete in upper opening steel form (2), on
Diaphram wall body other than opening steel form pours for normal concrete；
The weight ratio of the sulphur concrete forms are as follows: sulphur: sand: cement: industrial paraffin 1:1.3:0.4:0.02.
2. a kind of construction method of the structure of closure door as described in claim 1, characterized in that the following steps are included:
1) the upper opening steel form construction of sulphur concrete protection wall is perfused: in the corresponding round perforation sections bottom welding of steel reinforcement cage
One block of bottom steel plate, bottom plate size: a length of tunnel diameter adds 1m, thickness 2cm to 5cm, and width is diaphram wall thickness, vertical steel
Muscle is welded on bottom steel plate upper and lower surface, to provide vertical supporting power, the globality of reinforcing steel bar cage；In bottom steel plate two sides, welding 2
Block welds more cross-brace reinforcing bars between 2 blocks of side steel plates with dimension side steel plate, outside the more cross-brace reinforcing bars and side steel plate
The transverse steel of side corresponds, to provide cross-brace power；Upper opening steel form is fixed form；
2) pour sequence: when pulling out conduit, casting concrete is high to design top mark, first pours normal silicate concrete and is poured onto out
At mouthful, sulphur concrete is then poured in template, partially pours normal silicate concrete on last diaphram wall；It extracts
Locking notch pipe or connector case, maintain into wall；
3) melt sulphur concrete after excavating: heating equipment heating and melting penetrates through region sulphur concrete to liquid-plastic state, uses
The sulphur concrete of liquid-plastic state is transported to outside hole by Transport Machinery；
4) reinforcing bar is manually cut: after perforation region sulphur concrete melts, reinforcing bar exposure, using the artificial cutting of steel of bar cutter
Muscle；Heating equipment stops heating, and hole week sulphur concrete restores to former intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811300719.1A CN109267565B (en) | 2018-11-02 | 2018-11-02 | Door sealing structure for shield launching and receiving construction and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811300719.1A CN109267565B (en) | 2018-11-02 | 2018-11-02 | Door sealing structure for shield launching and receiving construction and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109267565A true CN109267565A (en) | 2019-01-25 |
| CN109267565B CN109267565B (en) | 2021-05-04 |
Family
ID=65191160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811300719.1A Active CN109267565B (en) | 2018-11-02 | 2018-11-02 | Door sealing structure for shield launching and receiving construction and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109267565B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561324A (en) * | 2020-04-29 | 2020-08-21 | 中铁十二局集团有限公司 | Construction method for shield tunneling machine to penetrate through underground diaphragm wall |
| CN113565087A (en) * | 2021-05-04 | 2021-10-29 | 中铁上海工程局集团有限公司 | Underground continuous wall reinforcement cage structure with formwork and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04269210A (en) * | 1991-02-22 | 1992-09-25 | Shimizu Corp | Construction method for underground continuous wall |
| CN102022119A (en) * | 2010-12-15 | 2011-04-20 | 广东华隧建设股份有限公司 | Shield machine balance originating method |
| CN103437369A (en) * | 2013-08-30 | 2013-12-11 | 上海建工二建集团有限公司 | Deep foundation pit support and removing method thereof |
| CN103953350A (en) * | 2014-05-20 | 2014-07-30 | 中铁四局集团有限公司 | Method for breaking tunnel door of quicksand stratum shield machine |
| CN108166777A (en) * | 2017-12-17 | 2018-06-15 | 哈尔滨理工大学 | Green method for dismounting based on electrothermal way crushing technology |
-
2018
- 2018-11-02 CN CN201811300719.1A patent/CN109267565B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04269210A (en) * | 1991-02-22 | 1992-09-25 | Shimizu Corp | Construction method for underground continuous wall |
| CN102022119A (en) * | 2010-12-15 | 2011-04-20 | 广东华隧建设股份有限公司 | Shield machine balance originating method |
| CN103437369A (en) * | 2013-08-30 | 2013-12-11 | 上海建工二建集团有限公司 | Deep foundation pit support and removing method thereof |
| CN103953350A (en) * | 2014-05-20 | 2014-07-30 | 中铁四局集团有限公司 | Method for breaking tunnel door of quicksand stratum shield machine |
| CN108166777A (en) * | 2017-12-17 | 2018-06-15 | 哈尔滨理工大学 | Green method for dismounting based on electrothermal way crushing technology |
Non-Patent Citations (3)
| Title |
|---|
| 刘彦青等: "《建筑施工技术》", 31 August 2018, 北京理工大学出版社 * |
| 杨新安等: "《城市隧道工程》", 31 March 2015, 同济大学出版社 * |
| 杨波主编: "《建筑施工实用手册》", 31 August 2015, 安徽科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561324A (en) * | 2020-04-29 | 2020-08-21 | 中铁十二局集团有限公司 | Construction method for shield tunneling machine to penetrate through underground diaphragm wall |
| CN113565087A (en) * | 2021-05-04 | 2021-10-29 | 中铁上海工程局集团有限公司 | Underground continuous wall reinforcement cage structure with formwork and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109267565B (en) | 2021-05-04 |
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