CN109630178B - Optimization method for air bridge of ventilation facility in roadway - Google Patents
Optimization method for air bridge of ventilation facility in roadway Download PDFInfo
- Publication number
- CN109630178B CN109630178B CN201811470891.1A CN201811470891A CN109630178B CN 109630178 B CN109630178 B CN 109630178B CN 201811470891 A CN201811470891 A CN 201811470891A CN 109630178 B CN109630178 B CN 109630178B
- Authority
- CN
- China
- Prior art keywords
- steel
- bridge
- shaped steel
- concrete
- construction
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009423 ventilation Methods 0.000 title claims abstract description 15
- 238000005457 optimization Methods 0.000 title claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 88
- 239000010959 steel Substances 0.000 claims abstract description 88
- 238000010276 construction Methods 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 239000004035 construction material Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Bridges Or Land Bridges (AREA)
- Building Environments (AREA)
Abstract
The invention discloses an optimization method of an air bridge of a ventilation facility in a roadway, which changes the traditional brick-concrete structure and concrete pouring structure method into a method of splicing I-shaped steel and steel plates to construct the air bridge. The masonry materials used by the traditional construction air bridge are mostly brick-concrete structures and concrete pouring structures, but the construction time of the brick-concrete structures and the concrete pouring structures in underground construction is long, the construction procedures are relatively complex, the construction materials are difficult to transport, the air bridge is easy to deform and frequent to maintain along with the increase of the mine pressure in the later period. The method for splicing the I-shaped steel and the steel plates is adopted for wind bridge construction, and the method has the advantages of simple transportation of construction materials, short construction time, improvement of deformation resistance of the wind bridge, less personnel investment, low safety risk and the like.
Description
Technical Field
The invention relates to an air bridge optimization method for a ventilation facility in a roadway, and belongs to the field of mine ventilation facilities.
Background
Along with the rapid construction of modern mines in China, the adjustment work of the ventilation system is also frequently carried out, and the adjustment of the ventilation system is mainly completed by increasing and decreasing ventilation facilities, so that the requirements of the production air volume of the mine and the safety, stability and reliability of the ventilation system are met. In general, the problem of a mine ventilation system is solved at the intersection of two roadways by building brick-concrete and concrete pouring structure air bridges. However, the air bridge of the brick-concrete structure and the concrete pouring structure is long in construction time and relatively complex in construction process, and the pressure of a mine in the later period damages the air bridge greatly, so that the later period maintenance is frequent, and potential hazards are brought to the safety of a ventilation system of the mine.
Disclosure of Invention
The air bridge of the ventilation facility is innovatively transformed according to the field construction condition, the labor intensity in the carrying process of building raw materials is reduced, the construction time is shortened, stable grouting pressure is provided, the problem that the air bridge is deformed due to the pressure in underground construction of a mine is solved, the working efficiency is improved, the economic benefit is improved, and cost reduction and efficiency improvement are realized.
The invention is realized according to the following technical scheme:
an optimization method of an air bridge of a ventilation facility in a roadway changes the traditional brick-concrete structure and concrete pouring structure method into a method of splicing I-shaped steel and steel plates to construct the air bridge.
The concrete construction process comprises the following steps:
1) clearing the roadway; 2) supporting two sides; 3) erecting and fixing an I-shaped steel upright column at the lower part of the bridge floor; 4) paving bridge deck I-steel; 5) erecting and fixing an I-shaped steel upright column at the upper part of the bridge floor; 6) paving a bridge floor and fixing a wall steel plate; 7) pouring concrete; 8) air leakage treatment and concrete spraying; 9) roadway cleaning and civilized construction.
The specific construction method comprises the following steps:
1. constructing a foundation with the width of 500mm and the depth of 500mm on two sides of the large roadway according to the designed width and height of the air bridge;
2. the wall body at the lower part of the bridge floor of the air bridge adopts I-steel as a supporting wall, the east and west sides respectively adopt a plurality of I-steel, the distance is 1m, the height of the I-steel supporting wall is 4m, the depth of a wall foundation is 0.5m, the widths of the east and west upright columns are 5.5m, an anchor rod is respectively arranged at the 1m position of the lower end of the upright column wall and is fixed with the lane side, the I-steel is respectively arranged at the upper openings of the I-steel of the east and west upright columns, a thick steel plate is adopted, holes with the specification of 200mm multiplied by 150mm are cut.
3. The bridge deck of the air bridge is made of I-shaped steel, the length of the I-shaped steel is 6.5m, the distance between the I-shaped steel is 0.5m, and the I-shaped steel is horizontally erected. Both ends are fixed with the vertical column I-shaped steel by welding steel plate preformed holes and bolts. And paving steel plates on the bridge deck, and adopting concrete to pour compactly.
4. The wall body on the upper portion of the bridge floor of the air bridge adopts I-shaped steel as a supporting wall, the south side and the north side are respectively provided with a plurality of I-shaped steel, the distance is 1.5 meters, the height of the I-shaped steel supporting wall is 4m, the widths of the south upright column and the north upright column are 5.5m, steel plates are welded at the lower openings of the upright columns, holes are cut, the steel plates are connected and fixed with the I-shaped steel of the bridge floor through bolts, steel plates with the thickness of 10mm are welded at the upper openings of the upright columns, holes are cut, anchor rods are erected and fixed.
5. In order to ensure that the air bridge is tight and does not leak air, concrete is sprayed on the upper part of the bridge floor.
The invention has the beneficial effects that:
the masonry materials used by the traditional construction air bridge are mostly brick-concrete structures and concrete pouring structures, but the construction time of the brick-concrete structures and the concrete pouring structures in underground construction is long, the construction procedures are relatively complex, the construction materials are difficult to transport, the air bridge is easy to deform and frequent to maintain along with the increase of the mine pressure in the later period.
The method for splicing the I-shaped steel and the steel plates is adopted for wind bridge construction, and the method has the advantages of simple transportation of construction materials, short construction time, improvement of deformation resistance of the wind bridge, less personnel investment, low safety risk and the like.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention;
FIG. 2 is a view of the plane A-A of FIG. 1;
FIG. 3 is a view from side B-B of FIG. 1;
FIG. 4 is a cross-sectional view of an east wall support wall in the west auxiliary conveying lane;
FIG. 5 is a cross-sectional view of a west side support wall in the west auxiliary conveying lane.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 5, the optimization method of the air bridge of the ventilation facility in the roadway changes the traditional brick-concrete structure and concrete pouring structure method into the method of splicing I-shaped steel and steel plates to construct the air bridge, shortens the construction time, improves the deformation capacity of the air bridge, and can recycle the air bridge materials.
The concrete construction process and scheme are as follows:
construction procedure
Cleaning a roadway → supporting two sides → supporting a bridge floor lower part I-shaped steel column, fixing → paving a bridge floor I-shaped steel → supporting a bridge floor upper part I-shaped steel column, fixing → paving a bridge floor, fixing a wall part steel plate → pouring concrete → air leakage treatment, spraying concrete → cleaning a roadway and civilized construction
Construction scheme
1. And constructing a foundation with the width of 500mm and the depth of 500mm along two sides of the west auxiliary transportation main roadway according to the designed width and height of the air bridge.
2. The wall body at the lower part of the air bridge deck adopts 20b of I-steel 100 as a supporting wall, the east and west sides respectively adopt 7I-steel, the distance is 1m, the height of the I-steel supporting wall is 4m, the depth of the wall foundation is 0.5m, the widths of the east and west upright posts are 5.5m, an anchor rod 300 with the diameter of 22mm multiplied by 2400mm is respectively arranged at the position of 1m at the lower end of the upright post wall and is fixed with the roadway side, 20b of I-steel is respectively arranged at the upper openings of the I-steel 200 of the east and west upright posts, a steel plate with the thickness of 10mm and a cutting hole with the specification of 200mm multiplied by 150mm are adopted.
3. The bridge deck of the air bridge adopts 100 b of I-steel, the length of the I-steel is 6.5m, the space between the I-steel is 0.5m, and the I-steel is horizontally erected. Two ends of the steel plate are welded with holes with the diameter of 16mm, and the bolts are fixed with the column I-shaped steel. And paving steel plates with the thickness of 5mm on the bridge deck, and adopting C20 concrete to pour the steel plates to be compact with the thickness of 200 mm.
4. The wall body at the upper part of the air bridge deck adopts 20b of I-steel 100 as a supporting wall, the south and north sides respectively adopt 5I-steel, the distance is 1.5 m, the height of the I-steel supporting wall is 4m, the width of the south and north upright columns is 5.5m, the lower opening of the upright column is welded with a 10mm thick steel plate, a hole is cut, a phi 16mm bolt is adopted to be connected and fixed with the bridge deck I-steel, the upper opening of the upright column is welded with the 10mm thick steel plate, the hole is cut, a phi 22 multiplied by 2400mm anchor rod is erected and fixed on a roadway roof, the wall surface adopts a 10mm thick steel plate, the specification of the steel plate is 1500mm multiplied by 1000 mm.
5. In order to ensure that the air bridge is tight and does not leak air, C20 concrete is sprayed on the upper part of the bridge floor, and the thickness is 100 mm.
The masonry materials used by the traditional construction air bridge are mostly brick-concrete structures and concrete pouring structures, but the construction time of the brick-concrete structures and the concrete pouring structures in underground construction is long, the construction procedures are relatively complex, the construction materials are difficult to transport, the air bridge is easy to deform and frequent to maintain along with the increase of the mine pressure in the later period.
The method for splicing the I-shaped steel and the steel plates is adopted for wind bridge construction, and the method has the advantages of simple transportation of construction materials, short construction time, improvement of deformation resistance of the wind bridge, less personnel investment, low safety risk and the like.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (1)
1. An optimization method of an air bridge of a roadway ventilation facility is characterized by comprising the following steps: the traditional brick-concrete structure and concrete pouring structure method is changed into a method of splicing I-shaped steel and steel plates to construct the air bridge;
the concrete construction process comprises the following steps:
1) clearing the roadway; 2) supporting two sides; 3) erecting and fixing an I-shaped steel upright column at the lower part of the bridge floor; 4) paving bridge deck I-steel; 5) erecting and fixing an I-shaped steel upright column at the upper part of the bridge floor; 6) paving a bridge floor and fixing a wall steel plate; 7) pouring concrete; 8) air leakage treatment and concrete spraying; 9) clearing a roadway and performing civilized construction;
the specific construction method comprises the following steps:
a. constructing a foundation with the width of 500mm and the depth of 500mm on two sides of the large roadway according to the designed width and height of the air bridge;
b. the wall body at the lower part of the bridge floor of the air bridge adopts I-steel as a supporting wall, the east and west sides respectively adopt a plurality of I-steel, the distance is 1 meter, the height of the I-steel supporting wall is 4m, the depth of a wall foundation is 0.5m, the widths of the east and west upright columns are 5.5m, an anchor rod is respectively arranged at the 1m position of the lower end of the upright column wall and is fixed with the lane side, the I-steel is respectively arranged at the upper openings of the I-steel of the east and west upright columns, a thick steel plate is adopted, holes with the specification of 200mm multiplied by 150mm are cut, and;
c. the bridge deck of the air bridge is made of I-shaped steel, the length of the I-shaped steel is 6.5m, the space between the I-shaped steel is 0.5m, and the I-shaped steel is horizontally erected; both ends are fixed with the vertical column I-shaped steel by welding steel plate preformed holes and bolts; paving steel plates on the bridge deck, and adopting concrete to pour compactly;
d. the wall body at the upper part of the bridge floor of the air bridge adopts I-shaped steel as a supporting wall, the south and north sides respectively adopt a plurality of I-shaped steel with the interval of 1.5 meters, the height of the I-shaped steel supporting wall is 4m, the width of the south and north upright posts is 5.5m, steel plates are welded at the lower openings of the upright posts, then holes are cut, the steel plates with the thickness of 10mm are welded and fixed with the I-shaped steel of the bridge floor through bolts, the holes are cut, anchor rods are erected and fixed on the top plate of the roadway, the wall surface adopts steel plates and is fixed on the;
e. in order to ensure that the air bridge is tight and does not leak air, concrete is sprayed on the upper part of the bridge floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811470891.1A CN109630178B (en) | 2018-12-04 | 2018-12-04 | Optimization method for air bridge of ventilation facility in roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811470891.1A CN109630178B (en) | 2018-12-04 | 2018-12-04 | Optimization method for air bridge of ventilation facility in roadway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109630178A CN109630178A (en) | 2019-04-16 |
| CN109630178B true CN109630178B (en) | 2020-08-11 |
Family
ID=66070881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811470891.1A Active CN109630178B (en) | 2018-12-04 | 2018-12-04 | Optimization method for air bridge of ventilation facility in roadway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109630178B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07293198A (en) * | 1994-04-28 | 1995-11-07 | Maeda Corp | Pedestal for air duct |
| RU2201507C1 (en) * | 2001-06-26 | 2003-03-27 | ОАО "Уральский научно-исследовательский и проектный институт галургии" | Method of ventilation of excavation section during inverse order of development |
| CN102383820B (en) * | 2011-10-06 | 2016-05-25 | 山西晋城无烟煤矿业集团有限责任公司 | Coal mine underground airbridge construction method |
| CN102966365B (en) * | 2012-05-16 | 2015-04-08 | 山西晋城无烟煤矿业集团有限责任公司 | Novel air bridge construction method |
| CN102900437A (en) * | 2012-09-29 | 2013-01-30 | 山西晋城无烟煤矿业集团有限责任公司 | Multi-channel grade separation type laneway arrangement method on coal face |
| CN103410550B (en) * | 2013-08-05 | 2016-06-22 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of coal mine underground airbridge construction method |
| CN104234734A (en) * | 2014-07-23 | 2014-12-24 | 山东科技大学 | Novel air crossing construction method of deep mine and highland pressure impact coal seam |
| CN105256713B (en) * | 2015-11-03 | 2017-06-16 | 苏交科集团股份有限公司 | Semi-assembly type steel concrete composite beam and construction method thereof |
| CN106149540A (en) * | 2016-07-19 | 2016-11-23 | 长安大学 | Assembling steel plate composite beam bridge and construction method thereof based on steel reinforced concrete combined bridge deck |
| CN206273876U (en) * | 2016-11-10 | 2017-06-23 | 深圳市市政设计研究院有限公司 | A kind of Anti-seismic combined type bridge pier |
-
2018
- 2018-12-04 CN CN201811470891.1A patent/CN109630178B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109630178A (en) | 2019-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108265885B (en) | Construction method of high-large non-orthogonal large-inclination-angle special-shaped concrete inclined column | |
| CN103924505B (en) | Use prefabricated steel-concrete combination T beam and the construction method of Wavelike steel webplate | |
| CN107090975B (en) | Formwork erecting construction method for ultrahigh large-span concrete cast-in-place beam bailey truss | |
| CN110387822B (en) | Cast-in-situ bent cap assembly type steel pipe support and construction method thereof | |
| CN102392536B (en) | Construction method for long-span hanging vestibule type template support system | |
| CN104594204B (en) | Urban light rail viaduct mountain type U beam Construction Supporting System and construction method | |
| CN210216163U (en) | Self-supporting cantilever formwork support system | |
| CN110552502A (en) | Construction method of C-shaped stock yard intermediate retaining wall overhanging platform | |
| CN107435335A (en) | Brick retaining wall steel bar girder hardened system and method on foundation pit enclosure top beam | |
| CN210066504U (en) | Large-span cantilever truss type bent cap support system | |
| CN204475184U (en) | Urban light rail viaduct mountain type U beam Construction Supporting System | |
| CN204299179U (en) | Cast-in-situ reinforced concrete thin-wall rectangular small bore open tubular column template assembly | |
| CN102767378B (en) | Double-column type tunnel portal method for bent frame construction tunnel | |
| CN210658013U (en) | Hanging basket structure for construction of wet joints of prefabricated erected small box girder cross-line bridge | |
| CN109630178B (en) | Optimization method for air bridge of ventilation facility in roadway | |
| CN218479176U (en) | A outer frame post installation node for in reinforced concrete foundation ditch supports | |
| CN111424948A (en) | Construction method and construction platform for cantilever structure layer of high-rise building | |
| CN108951643B (en) | Super high-rise deep foundation pit basement core tube large-span large-area support changing construction method | |
| CN107299596B (en) | Concrete support trestle plate lower supporting beam template system and construction method thereof | |
| CN114215333B (en) | Quick construction method for outer cornices of high-rise buildings | |
| CN216586226U (en) | Large-scale concrete drainage box culvert roof suspension type template support | |
| RU128636U1 (en) | BASE ASSEMBLY JOINT REINFORCED CONCRETE COLUMN WITH FOUNDATION | |
| CN213203667U (en) | Supporting structure for post-cast strip-striding temporary lane of top plate of ground depot | |
| CN206036408U (en) | Span pipeline normal position of foundation ditch and suspend protection architecture in midair | |
| CN210621475U (en) | Cast-in-situ bent cap assembled steel pipe support |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |