CN203546733U - Mass hollow concrete structure used for large-scale cavity backfilling - Google Patents
Mass hollow concrete structure used for large-scale cavity backfilling Download PDFInfo
- Publication number
- CN203546733U CN203546733U CN201320657699.XU CN201320657699U CN203546733U CN 203546733 U CN203546733 U CN 203546733U CN 201320657699 U CN201320657699 U CN 201320657699U CN 203546733 U CN203546733 U CN 203546733U
- Authority
- CN
- China
- Prior art keywords
- concrete
- concrete structure
- scale
- backfill
- hollow concrete
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a mass hollow concrete structure used for large-scale cavity backfilling, which is used for maximumly reducing concrete consumption under the premise of ensuring structure safety and reliability. The mass hollow concrete structure comprises a backfilling concrete body (2) filled between the outer wall of a tunnel lining (1) and the rock face of a large-scale cavity, wherein the backfilling concrete body (2) is internally provided with vertical holes (3) at intervals along the horizontal direction and the longitudinal direction, and concrete horizontal connecting plates (4) vertically spaced from the vertical holes (3).
Description
Technical field
The utility model relates to railway, highway, municipal engineering field, particularly a kind of large volume hollow concrete structure for large-scale empty backfill.
Background technology
Flourish along with national economy and communication, for convenience of the numerous common people's trip, high ferro and speedway are more and more favored, and safety, more come into one's own fast.In the construction process of high-speed railway or freeway tunnel, owing to being subject to complicated geological, orographic condition and the restriction of prospecting technique level at present, and the impact of the restriction of route selection sweep and the distribution of surrounding city existing buildings, tunnel will pass through the Unfavorable Conditions such as some tomographies, karst cavity, goaf.In Guangxi of China, the karst area such as Guizhou, Yunnan, tunnel is inevitably by some huge molten chambeies, underground river.Tunnel has three kinds conventionally by the processing mode on these huge molten chambeies, underground river: the first adopts abandons quarrel backfill; The second is to build a bridge in tunnel; The third adopts bricklaying backfill.Quarrel backfill scheme is abandoned in employing, and because backfill is highly larger, its settlement after construction is difficult to control, and being conventionally applied to tradition has in tiny fragments of stone, coal, etc. railway roadbed tunnel; In tunnel, set up girder span scheme, owing to will having a large amount of personnel, facility to carry out long working in hole, place, wall stability are had relatively high expectations, practical ranges is limited; Adopt bricklaying backfill scheme, first foundation settlement is controlled, can meet without the requirement of tiny fragments of stone, coal, etc. railway roadbed settlement after construction, and secondly construction is simple, quick; Again, this scheme can adapt to various ambient conditionss, applied widely.But bricklaying backfill scheme engineering quantity is large, and cost is high, how to reduce construction costs, save bricklaying, protection of the environment guarantees that concrete in mass backfill structural safety becomes tunnel by large-scale cavity design, Key Techniques in Construction simultaneously.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of large volume hollow concrete structure for large-scale empty backfill, to guarantee, under structural safety, reliable prerequisite, reducing to greatest extent concrete amount.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
Large volume hollow concrete structure for large-scale empty backfill of the present utility model, comprise the fill concrete body filling between tunnel lining outer wall and large-scale cavity crag, it is characterized in that: in described fill concrete body, along horizontal, longitudinal separation, lay vertical hole, along vertical interval, concrete cross connecting plate is set with vertical hole (3).
The beneficial effects of the utility model are, make full use of the characteristic that concrete anti-compression performance is strong, can reduce significantly concrete backfill amount, reduce construction costs, protection of the environment; Guaranteeing, on structural safety, reliable basis, to have solved preferably concrete in mass heat of hydration problem simultaneously.
Accompanying drawing explanation
This manual comprises two width accompanying drawings:
Fig. 1 is that the utility model is for the structural representation of the large volume hollow concrete structure of large-scale empty backfill;
Fig. 2 is the sectional drawing along I-I line in Fig. 1;
Member, toponym and institute's correspondence markings in figure:
Tunnel lining 1, fill concrete body 2, vertical hole 3, concrete cross connecting plate 4.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Through safety and Technological Economy comparison, Tunnel Base adopts concrete backfill structure without the large-scale cavity of drainage requirement more at present, but concrete work amount is large, construction costs is high, the cubic deformation problem of Cracking that concrete in mass hydration heat of cement causes, may have influence on safety and the normal use of tunnel structure; How safety, economical, solve concrete in mass backfill problem easily and more and more come into one's own and pay close attention to, the structure that reduces concrete in mass backfill bricklaying becomes tunnel by large-scale cavity design, Key Techniques in Construction.
See figures.1.and.2, the utility model is for the large volume hollow concrete structure of large-scale empty backfill, comprise the fill concrete body 2 filling between tunnel lining 1 outer wall and large-scale cavity crag, the interior edge of fill concrete body 2 is horizontal, longitudinal separation is laid vertical hole 3.The setting of vertical hole 3 makes full use of the characteristic that concrete anti-compression performance is strong, can reduce significantly concrete backfill amount, reduces construction costs, protection of the environment, and solved preferably concrete in mass heat of hydration problem.With reference to Fig. 1, for avoiding the too high structure large eccentric pressuring that causes of vertical hole 3, the interior edge of described fill concrete body 2 is vertical arranges concrete cross connecting plate 4 with vertical hole 3 intervals, can effectively strengthen the resistance to overturning of fill concrete body 2 structures, guarantees its safety, reliable.
See figures.1.and.2, for ease of construction, the cross section of described vertical hole 3 is rectangular or circular, and cross-sectional area is 4～9m
2.Conventionally, from reducing bricklaying backfill and effectively heat of hydration evacuation in time being conducted to two aspects, consider, in described vertical hole 3, the spacing between the vertical hole 3 of outermost and large-scale cavity crag is 3～5m, and the horizontal or longitudinal pitch of adjacent two vertical holes 3 is 4～6m.
With reference to Fig. 1, the vertical spacing of described concrete cross connecting plate 4 is 8～10m, the high about 2m of cross connecting plate 4.
The utility model makes full use of the characteristic that concrete anti-compression performance is strong, can reduce significantly concrete backfill amount, reduce construction costs, with huge cavity at the bottom of Line for Passenger Transportation tunnel, Changsha to Kunming tunnel, adopt bricklaying backfill to be treated to example, if adopt traditional bricklaying backfill, need 22.7 ten thousand sides, after the backfill structure of employing the utility model, be 210,000 sides, reduce bricklaying 17000 sides, save approximately 5,000,000 yuan of investments, solved preferably because the heat of hydration causes concrete surface and occurred the phenomenon of crackle simultaneously.
The above the utility model some principle for the large volume hollow concrete structure of large-scale empty backfill that just explain through diagrams, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore the corresponding modify being likely utilized every and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (5)
1. for the large volume hollow concrete structure of large-scale empty backfill, comprise the fill concrete body (2) filling between tunnel lining (1) outer wall and large-scale cavity crag, it is characterized in that: in described fill concrete body (2), along horizontal, longitudinal separation, lay vertical hole (3), along vertical interval, concrete cross connecting plate (4) is set with vertical hole (3).
2. the large volume hollow concrete structure for large-scale empty backfill as claimed in claim 1, is characterized in that: the cross section of described vertical hole (3) is rectangular or circular.
3. the large volume hollow concrete structure for large-scale empty backfill as claimed in claim 1, is characterized in that: in described vertical hole (3), the spacing between the vertical hole of outermost (3) and large-scale cavity crag is 3～5m.
4. the large volume hollow concrete structure for large-scale empty backfill as claimed in claim 1, is characterized in that: in described vertical hole (3), the horizontal or longitudinal pitch of adjacent two vertical holes (3) is 4～6m.
5. the large volume hollow concrete structure for large-scale empty backfill as claimed in claim 1, is characterized in that: the vertical spacing of described concrete cross connecting plate (4) is 8～10m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657699.XU CN203546733U (en) | 2013-10-23 | 2013-10-23 | Mass hollow concrete structure used for large-scale cavity backfilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657699.XU CN203546733U (en) | 2013-10-23 | 2013-10-23 | Mass hollow concrete structure used for large-scale cavity backfilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203546733U true CN203546733U (en) | 2014-04-16 |
Family
ID=50464869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320657699.XU Withdrawn - After Issue CN203546733U (en) | 2013-10-23 | 2013-10-23 | Mass hollow concrete structure used for large-scale cavity backfilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203546733U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498477A (en) * | 2013-10-23 | 2014-01-08 | 中铁二院工程集团有限责任公司 | Large-sized hollow concrete structure for refilling large-scale cavity |
| CN109137699A (en) * | 2018-10-08 | 2019-01-04 | 励土峰 | A method of repairing dell |
-
2013
- 2013-10-23 CN CN201320657699.XU patent/CN203546733U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498477A (en) * | 2013-10-23 | 2014-01-08 | 中铁二院工程集团有限责任公司 | Large-sized hollow concrete structure for refilling large-scale cavity |
| CN103498477B (en) * | 2013-10-23 | 2016-09-21 | 中铁二院工程集团有限责任公司 | Large volume hollow concrete structure for the backfill of large-scale cavity |
| CN109137699A (en) * | 2018-10-08 | 2019-01-04 | 励土峰 | A method of repairing dell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103498477B (en) | Large volume hollow concrete structure for the backfill of large-scale cavity | |
| CN204023501U (en) | A remove dangerous and consolidate prevention of seepage processing structure for earth and rockfill dam | |
| CN201962558U (en) | High-steepness side slope subgrade structure for mountainous area | |
| WO2015021783A1 (en) | Man-made retaining dam for coal mine underground reservoir, and method for connecting coal pillar dam body, surrounding rock, and same | |
| CN202416263U (en) | Concrete faced rockfill dam compounded with gravity dam | |
| CN103321233B (en) | The preparation method of groundwater resources retracting device in landslide deep layer draining and sliding mass | |
| CN107816056A (en) | Filled type concrete gravity retaining wall and its construction technology | |
| CN203546733U (en) | Mass hollow concrete structure used for large-scale cavity backfilling | |
| CN107524154B (en) | The artificial dam apparatus for building and construction process of coal seam goaf | |
| CN204941551U (en) | A kind of subway station of Curve Pipe Jacking supporting and protection structure enlarging shield-tunneling construction | |
| CN103132487A (en) | Method of reducing horizontal displacement of concrete faced rockfill dam and concrete faced rockfill dam | |
| CN203741782U (en) | Multi-section face plate structure of high concrete faced rockfill dam | |
| CN208502792U (en) | A kind of advanced double-deck ductule of crushed zone tunnel advanced support | |
| CN202323879U (en) | Rock-fill dam for preventing seepage by combining with grouted stone | |
| CN105332460A (en) | Environment-friendly seismic-isolation building block | |
| CN203022809U (en) | Reinforced filling board wall | |
| CN205152975U (en) | Steel -pipe pile composite foundation structure that soft base was handled in tunnel | |
| CN203923927U (en) | The high fill culvert load-relieving structure of highway based on sealed plastic container | |
| CN203821435U (en) | T-shaped retaining wall concrete block | |
| CN203302051U (en) | Ecological planting device | |
| CN204401569U (en) | Novel hard filler rolling dam suitable for deep overburden | |
| CN102230318A (en) | Two-fluid grouting water plugging construction method for pebble layer with strong permeability | |
| CN207193905U (en) | Interlock ecological block | |
| Jia et al. | Ground movements in shield tunneling and impacts on railway culvert | |
| Zhang et al. | Study on the Effect of Parallel Pipe Jacking Spacing on Surface Subsidence Deformation in the Pre-Construction Method of Tube Curtain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20160921 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |