CN107044290A - The vertical slip casting steel floral tube in tunnel top props up the integral reinforcing method being combined at the beginning of tunnel - Google Patents
The vertical slip casting steel floral tube in tunnel top props up the integral reinforcing method being combined at the beginning of tunnel Download PDFInfo
- Publication number
- CN107044290A CN107044290A CN201710482684.7A CN201710482684A CN107044290A CN 107044290 A CN107044290 A CN 107044290A CN 201710482684 A CN201710482684 A CN 201710482684A CN 107044290 A CN107044290 A CN 107044290A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- slip casting
- floral tube
- steel floral
- casting steel
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 72
- 239000010959 steel Substances 0.000 title claims abstract description 72
- 238000007569 slipcasting Methods 0.000 title claims abstract description 46
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000002787 reinforcement Effects 0.000 claims abstract description 11
- 239000011435 rock Substances 0.000 claims abstract description 5
- 239000002689 soil Substances 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims description 11
- 238000009412 basement excavation Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 239000004568 cement Substances 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract description 2
- 210000005239 tubule Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/14—Lining predominantly with metal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
Abstract
A kind of vertical slip casting steel floral tube in tunnel top props up the integral reinforcing method being combined at the beginning of tunnel, vertical slip casting steel floral tube is inserted in the range of initial support structure, and extend to tunnel inverted arch top surface；Grouting and reinforcing is carried out to the Rock And Soil in tunnel contour line setting range by slip casting steel floral tube；Slip casting steel floral tube in cut barrel；Slip casting steel floral tube, first branch I-steel, bar-mat reinforcement and advance support are welded together to form an entirety with ductule with U-shaped dowel, integral reinforcing effect is improved.It is an advantage of the invention that：Steel floral tube, the injecting cement paste of spray of molten steel tube end is turned into monocoque structure with first Zhi Xianglian by welding procedure, help to form stable overlying arch ring, solve the Problem of Shallow in tunnel and the biasing problem in tunnel.The vertical slip casting steel floral tube in Tunnel top props up the integral reinforcing method being combined at the beginning of tunnel, is a kind of Tunnel top reinforcement technique with development prospect with advanced technology, economical rationality, the advantage such as quick of constructing.
Description
Technical field
A kind of vertical slip casting steel floral tube in Tunnel top of present invention design props up the integral reinforcing method being combined at the beginning of tunnel, fits
Tunnel reinforcement engineering for highway, railway, mine, municipal administration etc..
Background technology
As China's Large scale construction extends to mountain area, shallow embedding, bias are inevitably run into during tunnel excavation
The problem of, solve the method for problem and mainly have surface grouting, the strong supporting measure such as steel tube shed and advanced conduit, these measures in hole
It is often independent to implement, it is difficult to reach integral reinforcing effect.
The content of the invention
The present invention props up the integral reinforcing method being combined for a kind of vertical slip casting steel floral tube in Tunnel top at the beginning of tunnel, be
Shallow embedding more serious present in tunnel excavation process, bias is preferably solved on traditional construction reinforcement Process ba- sis to ask
Topic.
The technical scheme is that：A kind of vertical slip casting steel floral tube in tunnel top props up the integral reinforcing side being combined at the beginning of tunnel
Method, it is characterised in that comprise the following steps：
1) the initial support structure construction in tunnel：The initial support structure includes first branch I-steel, bar-mat reinforcement and advanced branch
Shield ductule, the construction of initial support structure is carried out according to routine techniques；
2) construction of slip casting steel floral tube：Vertical slip casting steel floral tube is inserted in the range of described initial support structure, and
Extend to tunnel inverted arch top surface；
3) grouting and reinforcing is carried out to the Rock And Soil in tunnel contour line setting range by slip casting steel floral tube；
4) slip casting steel floral tube in cut barrel：During tunnel excavation, slip casting steel floral tube is run into, according to steel floral tube cut
Terminated line, carries out cut by the slip casting steel floral tube in barrel, its length is intersected a segment length with first branch I-steel, intersects
Length by do not influence it is final two lining contour line be defined；
5) weld and form monocoque structure：With U-shaped dowel by slip casting steel floral tube, first branch I-steel, bar-mat reinforcement and
Advance support is welded together to form an entirety with ductule, improves integral reinforcing effect.
Described step 3) in, the tunnel contour line setting range of grouting and reinforcing is 5-7m.
Described step 4) in, the length that the cut length of slip casting steel floral tube intersects with first branch I-steel is 10-20cm.
Described step 5) in, U-shaped special reinforcing bar uses φ 25mm spirals, the long 70cm in dowel two ends, bending section
It is engaged with the periphery of slip casting steel floral tube.
It is an advantage of the invention that：The technological merit of upright controling slip casting steel floral tube and constructing tunnel initial support is combined,
Steel floral tube, the injecting cement paste of spray of molten steel tube end is turned into monocoque structure with first Zhi Xianglian by welding procedure, help to be formed
Stable overlying arch ring, not only solves the Problem of Shallow in tunnel but also also solves the biasing problem in tunnel.Erect on Tunnel top
The integral reinforcing method being combined is propped up at the beginning of tunnel to slip casting steel floral tube, it is quick etc. excellent with advanced technology, economical rationality, construction
Gesture, is a kind of Tunnel top reinforcement technique with development prospect.
Brief description of the drawings
Fig. 1 is the tunnel longitudinal cross-section structural representation of the present invention；
Fig. 2 is the tunnel cross sectional structural representation of the present invention；
Fig. 3 is the enlarged drawing at M in Fig. 1；
Fig. 4 is Fig. 3 top view；
Fig. 5 is a Fig. 4 left side (right side) view；
Fig. 6 is the enlarged drawing at N in Fig. 1；
Fig. 7 is Fig. 6 top view.
Description of symbols in figure：1-U types dowel, 2- I-steel, 3- (Tunnel top is vertical) slip casting steel floral tube, 4- welding
Place, 5- advanced tubules, 6- bar-mat reinforcements, 7- (at the beginning of tunnel prop up during) by the steel floral tube of cut, D- steel floral tube cuts terminated line,
G- ground, P- tunnels, L1- slip casting steel floral tubes are longitudinally arranged spacing, L2- I-steel arrangement spacing, H-I-steel height, B-work
At word steel leg width, A-slip casting tempering pipe and I-steel at vault intersection location, B-slip casting steel floral tube with I-steel in haunch
Intersection location.
Embodiment
1) construction of the vertical slip casting steel floral tube 3 in Tunnel top：
Before tunnel in-cavity construction, by performing vertical slip casting steel floral tube 3 on Tunnel top, the insertion of steel floral tube 3 is propped up at the beginning of tunnel
In the range of and extend to tunnel inverted arch top surface, added by controlling slip casting to carry out slip casting to the Rock And Soil in the range of tunnel contour line 6m
Gu, improve the intensity of Rock And Soil around tunnel.
2) processing of U-shaped special reinforcing bar 1：
Using φ 25mm spirals, the long 70cm in dowel two ends, bending section calculates its radius according to Fig. 2 marks, so
Made afterwards of angle bender.
3) slip casting steel floral tube 3 in cut barrel：
During tunnel excavation, slip casting steel floral tube 3 is run into, according to steel floral tube cut terminated line, by barrel
Slip casting steel floral tube 3 carries out cut, its length is intersected about 15cm with first branch I-steel 2, and specific length is not to influence final two lining
Contour line is defined, to weld.
4) weld and form monocoque structure：
Steel floral tube 3 is welded together with branch I-steel 2 at the beginning of tunnel by U-shaped special reinforcing bar 1, such as run into advanced tubule
5th, bar-mat reinforcement 6 etc. also welds together in the lump, makes monocoque structure.
Claims (4)
1. a kind of vertical slip casting steel floral tube in tunnel top props up the integral reinforcing method being combined at the beginning of tunnel, it is characterised in that including with
Lower step：
1) the initial support structure construction in tunnel：The initial support structure includes first branch I-steel, bar-mat reinforcement 6 and advance support and used
Ductule, the construction of initial support structure is carried out according to routine techniques；
2) construction of slip casting steel floral tube：Vertical slip casting steel floral tube 3 is inserted in the range of described initial support structure, and is extended
To tunnel inverted arch top surface；
3) grouting and reinforcing is carried out to the Rock And Soil in tunnel contour line setting range by slip casting steel floral tube；
4) slip casting steel floral tube in cut barrel：During tunnel excavation, slip casting steel floral tube is run into, is terminated according to steel floral tube cut
Line, carries out cut by the slip casting steel floral tube in barrel, its length is intersected a segment length, intersecting length with first branch I-steel
Degree is not to influence final two linings contour line to be defined；
5) weld and form monocoque structure：With U-shaped dowel by slip casting steel floral tube, first branch I-steel, bar-mat reinforcement and advanced
Supporting is welded together to form an entirety with ductule, improves integral reinforcing effect.
2. the vertical slip casting steel floral tube in tunnel top according to claim 1 props up the integral reinforcing method being combined at the beginning of tunnel, its
It is characterised by, described step 3) in, the tunnel contour line setting range of grouting and reinforcing is 5-7m.
3. the vertical slip casting steel floral tube in tunnel top according to claim 1 props up the integral reinforcing method being combined at the beginning of tunnel, its
It is characterised by, described step 4) in, the length that the cut length of slip casting steel floral tube intersects with first branch I-steel is 10-20cm.
4. the vertical slip casting steel floral tube in tunnel top according to claim 1 props up the integral reinforcing method being combined at the beginning of tunnel, its
It is characterised by, described step 5) in, U-shaped special reinforcing bar uses φ 25mm spirals, the long 70cm in dowel two ends, bending section
It is engaged with the periphery of slip casting steel floral tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710482684.7A CN107044290A (en) | 2017-06-22 | 2017-06-22 | The vertical slip casting steel floral tube in tunnel top props up the integral reinforcing method being combined at the beginning of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710482684.7A CN107044290A (en) | 2017-06-22 | 2017-06-22 | The vertical slip casting steel floral tube in tunnel top props up the integral reinforcing method being combined at the beginning of tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107044290A true CN107044290A (en) | 2017-08-15 |
Family
ID=59547450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710482684.7A Pending CN107044290A (en) | 2017-06-22 | 2017-06-22 | The vertical slip casting steel floral tube in tunnel top props up the integral reinforcing method being combined at the beginning of tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107044290A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020248596A1 (en) * | 2019-06-13 | 2020-12-17 | 河南理工大学 | Protection structure for preventing ground heave caused by tunnel grouting reinforcement and grouting method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007321490A (en) * | 2006-06-02 | 2007-12-13 | Shimizu Corp | Tunnel excavation method |
| CN104100280A (en) * | 2014-07-07 | 2014-10-15 | 中冶交通工程技术有限公司 | Primary double-wing outrigger support structure and tunnel construction method thereof |
| CN104165056A (en) * | 2014-03-11 | 2014-11-26 | 中交一公局厦门工程有限公司 | Construction method for excavating water-rich shallow underground excavation tunnel |
| CN104818991A (en) * | 2015-03-30 | 2015-08-05 | 中铁二十四局集团福建铁路建设有限公司 | Construction method of residual slope wash tunnel with shallow cover and unsymmetrical pressure |
| CN104847374A (en) * | 2015-04-24 | 2015-08-19 | 长安大学 | Soft rock large-deformation tunnel supporting system and construction method thereof |
| CN105863677A (en) * | 2016-04-12 | 2016-08-17 | 中国电建集团成都勘测设计研究院有限公司 | Strengthening method for preliminary tunnel support |
| CN106499413A (en) * | 2016-11-19 | 2017-03-15 | 中铁十二局集团有限公司 | A kind of Shallow-buried section tunnel stratum consolidation construction method |
-
2017
- 2017-06-22 CN CN201710482684.7A patent/CN107044290A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007321490A (en) * | 2006-06-02 | 2007-12-13 | Shimizu Corp | Tunnel excavation method |
| CN104165056A (en) * | 2014-03-11 | 2014-11-26 | 中交一公局厦门工程有限公司 | Construction method for excavating water-rich shallow underground excavation tunnel |
| CN104100280A (en) * | 2014-07-07 | 2014-10-15 | 中冶交通工程技术有限公司 | Primary double-wing outrigger support structure and tunnel construction method thereof |
| CN104818991A (en) * | 2015-03-30 | 2015-08-05 | 中铁二十四局集团福建铁路建设有限公司 | Construction method of residual slope wash tunnel with shallow cover and unsymmetrical pressure |
| CN104847374A (en) * | 2015-04-24 | 2015-08-19 | 长安大学 | Soft rock large-deformation tunnel supporting system and construction method thereof |
| CN105863677A (en) * | 2016-04-12 | 2016-08-17 | 中国电建集团成都勘测设计研究院有限公司 | Strengthening method for preliminary tunnel support |
| CN106499413A (en) * | 2016-11-19 | 2017-03-15 | 中铁十二局集团有限公司 | A kind of Shallow-buried section tunnel stratum consolidation construction method |
Non-Patent Citations (1)
| Title |
|---|
| 鲁荣刚;: "超浅埋偏压隧道加固前后施工力学分析" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020248596A1 (en) * | 2019-06-13 | 2020-12-17 | 河南理工大学 | Protection structure for preventing ground heave caused by tunnel grouting reinforcement and grouting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220129 Address after: 100081 Beijing city Haidian District Daliushu Road No. 2 Applicant after: CARS RAILWAY ENGINEERING Research Institute Address before: 100081 Institute of railway architecture, China Academy of Railway Sciences, No. 2 Daliushu Road, Haidian District, Beijing Applicant before: Zhang Yufang |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170815 |