CN203685204U - Spraying building concealed irregular middle wall combined type multiple-arch tunnel lining structure - Google Patents
Spraying building concealed irregular middle wall combined type multiple-arch tunnel lining structure Download PDFInfo
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- CN203685204U CN203685204U CN201320848199.4U CN201320848199U CN203685204U CN 203685204 U CN203685204 U CN 203685204U CN 201320848199 U CN201320848199 U CN 201320848199U CN 203685204 U CN203685204 U CN 203685204U
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- middle wall
- arch
- arch tunnel
- irregular
- construction
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- 230000001788 irregular Effects 0.000 title abstract 6
- 238000005507 spraying Methods 0.000 title abstract 6
- 239000007921 spray Substances 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000004567 concrete Substances 0.000 claims abstract description 9
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 22
- 239000011435 rock Substances 0.000 abstract description 9
- 239000000835 fiber Substances 0.000 abstract 1
- 239000011210 fiber-reinforced concrete Substances 0.000 abstract 1
- 230000035772 mutation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a spraying building concealed irregular middle wall combined type multiple-arch tunnel lining structure, relates to construction facilities for multiple-arch tunnels in railway, highway, subway or municipal administration and particularly relates to engineering facilities such as long tunnels and municipal tunnels which are high in requirement for construction speed. A multiple-arc structure is formed by a primary support structure and a secondary lining structure and the secondary lining structure is arranged on an inner layer of the primary supporting structure. The spraying building concealed irregular middle wall combined type multiple-arch tunnel lining structure is characterized in that a lining steel frame is arranged between the multiple-arc structure and steel fiber reinforced concrete sprays on the external surface of the lining steel frame to form into the spraying building concealed irregular middle wall. The spraying building concealed irregular middle wall combined type multiple-arch tunnel lining structure has the advantages of being strong in intensity, stiffness and toughness due to the facts that the irregular structured middle wall with the spraying building steel fiber concrete and the profile steel frame is adopted and rock pillar protection is reserved in rear holes during construction, bearing large surrounding rock load, guaranteeing integral stability and the structure safety of the middle wall during the construction and reducing stiffness mutation due to the fact that the structure is smoothly connected with the primary support.
Description
Technical field:
The utility model relates to the Multi-arch Tunnel Construction facility of railway, highway, subway or municipal administration, the engineering services that particularly grow up tunnel and city tunnel etc. are had relatively high expectations to quick construction.
Background technology:
At present, the structural shape that both at home and abroad multiple-arch tunnel adopts mainly contains in monolithic wall multiple-arch tunnel in wall multiple-arch tunnel and combined type.In monolithic, wall multiple-arch tunnel is because difficulty of construction is large, and waterproof effect is poor, and structure durability is poor, seldom adopts at present.In common combined type, wall multiple-arch tunnel is to adopt at present maximum multiple-arch tunnel structural shapes, but its speed of application is slow, circuit bad adaptability, invest high, efficiency of construction is low, has restricted the extensive use of multiple-arch tunnel.
Also expedite the emergence of a lot of improved multiple-arch tunnel structural shapes for above problem.Some structures are the supporting apparatus of holing after stretching into, and when preliminary bracing and middle wall stresses are concentrated, removed when this method exists waste material, dismounting temporary supporting to affect duration, dismounting, have larger potential safety hazard and make structure experience repeatedly the problem of stress state; Some structures are Special-shaped second liner structure, but have the excessive endurance issues of each spot size gap, are only suitable for the situation that wall rock condition is good.Moreover, after all side Tunnel Second Lining Construction is first excavated in consideration in these improved multiple-arch tunnel structure designs, just can carry out opposite side tunnel excavation, efficiency of construction is lower; The country rock load releasing simultaneously bringing by first excavating the rear excavation of the strong rigidity opposing side constructing tunnel of side secondary lining, cause and first excavated side Tunnel Second Lining and experience repeatedly stress state, destructible waterproofing system and the problem that causes secondary lining to ftracture, thus anti-drainage effect, structure durability and long-term safety affected.
Summary of the invention:
Problem to be solved in the utility model provides a kind of anti-drainage effect good for above deficiency exactly, and structure durability is good, the multiple-arch tunnel liner structure that efficiency of construction is high.Its technical scheme is as follows:
It forms double-arch structure by preliminary bracing structure and secondary liner structure, and secondary liner structure is positioned at the internal layer of preliminary bracing structure.Its key technology is between double-arch structure, to be provided with lining cutting steelframe, lining cutting steelframe external surface spray establish steel fibrous concrete form spray build profile steel frame concrete in wall.
Compared with prior art, the utlity model has following beneficial effect:
1, the utility model adopts wall in special-shaped " steel fibrous concrete+profile steel frame is built in spray " structure, its structure alienation is in hole preliminary bracing in advance, once spray and build steel fibrous concrete with hole preliminary bracing in advance, form spray and build wall compound multiple-arch tunnel in implicit expression abnormal shape; After when construction, the reserved rock pillar protection in row hole, has stronger intensity, rigidity and toughness, can bear larger country rock load, ensures wall resistance to overturning and structural safety in construction period, and makes itself and preliminary bracing along connecing as far as possible, reduces rigidity sudden change.In tunnel and city tunnel, have broad application prospects growing up.
2, middle wall construction spray is built and is formed, and without temporary lining, to tunnel remainder, construction does not cause interference, substantially can realize accessible construction organization, reduces construction way and saves investment, significantly improves Multi-arch Tunnel Construction efficiency, has significant economic results in society.
3, this kind of new-type tunnel lining structure solved and first excavated the problem that just can carry out opposite side tunnel excavation after side Tunnel Second Lining Construction, improved efficiency of construction.After having solved the strong rigidity opposing by first excavating side secondary lining, excavate the country rock load releasing problem that side constructing tunnel brings simultaneously, solve and first excavated the problem that side Tunnel Second Lining experiences repeatedly stress state, destructible waterproofing system and causes secondary lining cracking, improve anti-drainage effect, improved structure durability and long-term safety.
Brief description of the drawings:
Fig. 1 is the utility model liner structure profile;
Fig. 2 is the utility model liner structure steelframe figure.
Detailed description of the invention:
Referring to Fig. 1, Fig. 2, the utility model forms double-arch structure by preliminary bracing structure 2 and secondary liner structure 3, and secondary liner structure 3 is positioned at the internal layer of preliminary bracing structure 2.Its key technology is between double-arch structure, to be provided with lining cutting steelframe, lining cutting steelframe external surface spray establish steel fibrous concrete form spray build profile steel frame concrete in wall 4.
Described lining cutting steelframe comprises two vertical parallel perpendicular supports 8, between perpendicular support 8, stull 7 is installed, and perpendicular support 8 tops arrange diagonal brace 6.
The outer lining cutting of supporting and protection structure 2 and secondary liner structure 3 in the early stage has anchor pole 1.
After adopting when construction, the reserved rock pillar 5 in row hole, has stronger intensity, rigidity and toughness, can bear larger country rock load, ensures wall resistance to overturning and structural safety in construction period.
Claims (3)
1. wall compound multiple-arch tunnel liner structure in implicit expression abnormal shape is built in a spray, form double-arch structure by preliminary bracing structure (2) and secondary liner structure (3), secondary liner structure (3) is positioned at the internal layer of preliminary bracing structure (2), it is characterized in that being provided with lining cutting steelframe between double-arch structure, lining cutting steelframe external surface spray establish steel fibrous concrete form spray build profile steel frame concrete in wall (4).
2. wall compound multiple-arch tunnel liner structure in implicit expression abnormal shape is built in spray according to claim 1, it is characterized in that lining cutting steelframe comprises two vertical parallel perpendicular supports (8), between perpendicular support (8), stull (7) is installed, and perpendicular support (8) top arranges diagonal brace (6).
3. wall compound multiple-arch tunnel liner structure in implicit expression abnormal shape is built in spray according to claim 1, it is characterized in that the outer lining cutting of supporting and protection structure (2) and secondary liner structure (3) has anchor pole (1) in the early stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848199.4U CN203685204U (en) | 2013-12-20 | 2013-12-20 | Spraying building concealed irregular middle wall combined type multiple-arch tunnel lining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848199.4U CN203685204U (en) | 2013-12-20 | 2013-12-20 | Spraying building concealed irregular middle wall combined type multiple-arch tunnel lining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685204U true CN203685204U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320848199.4U Expired - Lifetime CN203685204U (en) | 2013-12-20 | 2013-12-20 | Spraying building concealed irregular middle wall combined type multiple-arch tunnel lining structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685204U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405402A (en) * | 2014-10-13 | 2015-03-11 | 中铁二院重庆勘察设计研究院有限责任公司 | Symmetric middle separation wall construction method for hidden type middle wall multi-arch tunnel |
| CN104405419A (en) * | 2014-10-13 | 2015-03-11 | 中铁二院重庆勘察设计研究院有限责任公司 | Parallel middle separation wall construction method for hidden type middle wall multi-arch tunnel |
| CN109441480A (en) * | 2018-11-02 | 2019-03-08 | 云南建投第三建设有限公司 | Row hole face gib construction after a kind of multiple-arch tunnel |
-
2013
- 2013-12-20 CN CN201320848199.4U patent/CN203685204U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405402A (en) * | 2014-10-13 | 2015-03-11 | 中铁二院重庆勘察设计研究院有限责任公司 | Symmetric middle separation wall construction method for hidden type middle wall multi-arch tunnel |
| CN104405419A (en) * | 2014-10-13 | 2015-03-11 | 中铁二院重庆勘察设计研究院有限责任公司 | Parallel middle separation wall construction method for hidden type middle wall multi-arch tunnel |
| CN109441480A (en) * | 2018-11-02 | 2019-03-08 | 云南建投第三建设有限公司 | Row hole face gib construction after a kind of multiple-arch tunnel |
| CN109441480B (en) * | 2018-11-02 | 2020-06-09 | 云南建投第三建设有限公司 | Temporary supporting construction method for backward tunnel face of multi-arch tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
|
| CX01 | Expiry of patent term |