CN212294194U - A remove greenhouse for track concrete road bed is under construction winter - Google Patents
A remove greenhouse for track concrete road bed is under construction winter Download PDFInfo
- Publication number
- CN212294194U CN212294194U CN202020989192.4U CN202020989192U CN212294194U CN 212294194 U CN212294194 U CN 212294194U CN 202020989192 U CN202020989192 U CN 202020989192U CN 212294194 U CN212294194 U CN 212294194U
- Authority
- CN
- China
- Prior art keywords
- track
- construction
- winter
- greenhouse
- concrete road
- 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
Images
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model discloses a remove greenhouse for track concrete railway roadbed construction in winter, including travelling car, electric fan heater, fire-retardant cotton, wire rope, cover fire-retardant cotton on the travelling car, the travelling car is by the spatial structure that the square steel welding formed, including crossbeam and longeron, the outside welding of longeron has the truckle support column, the welding of truckle support column top has the truckle. The movable greenhouse is simple to manufacture, has low resource investment, achieves the effect of flow maintenance construction, and has high turnover utilization rate; the warm shed has small heat storage area, effectively improves the heat preservation and heat storage maintenance effects of concrete, accelerates the early-stage solidification strength of the concrete track bed, meets the running conditions of the rail car, improves the construction progress, and has good economic effect, energy conservation and environmental protection; the movable greenhouse is convenient to construct and operate, small in potential safety hazard and strong in safety and reliability.
Description
Technical Field
The utility model relates to a track traffic construction technical field is fit for winter concrete in the north and says the bed construction, specifically indicates a removal greenhouse that is used for track concrete to say bed construction in winter.
Background
With the continuous development of economic society, rail transit construction engineering is also gradually developed. In the prior art, after entering winter in northern areas, concrete is difficult to maintain after being poured under the influence of cold weather. When the environmental temperature is reduced to 0 ℃ or below, water existing in the concrete is frozen, the hydration of the cement is stopped, the strength is not enhanced, if the newly poured concrete is frozen, the volume of the frozen concrete after the water is frozen is increased by about 9%, and after the normal-temperature curing is resumed, the porosity in the cement paste is obviously increased compared with that of the normal concrete, so that various physical properties of the concrete are comprehensively reduced, and the durability is seriously deteriorated. For accelerating the construction of urban rail transit in northern areas, ensuring the construction quality in winter and improving the construction efficiency, the traditional greenhouse method is adopted for auxiliary reinforcement and maintenance construction, but the traditional greenhouse adopts a fixed mode, so that the operation space is small, the construction speed is low, the manufacturing cost is high, the disassembly is difficult, the energy consumption is high, and the environment is not protected.
Disclosure of Invention
The utility model aims at providing a remove warm canopy for track concrete roadbed construction in winter, it is little to remove warm canopy heat accumulation area, and the heat accumulation function is high, has shortened concrete roadbed setting time, does benefit to the railcar and transports each item track construction required material in advance, by a wide margin improved the construction progress in winter, has solved the problem of the track traffic concrete roadbed maintenance construction difficulty in winter in the north.
The utility model discloses a following technical scheme realizes:
a movable warm shed for winter construction of a track concrete track bed comprises a movable trolley 1, a fan heater 2, flame-retardant cotton cloth 3 and a steel wire rope 5, wherein the movable trolley 1 is of a three-dimensional structure formed by welding square steel and comprises a cross beam 11 and a longitudinal beam 12, a small pulley support column 13 is welded on the outer side of the longitudinal beam 12, and a small pulley 14 is welded at the top end of the small pulley support column 13;
the two ends of each steel wire rope 5 are provided with buckles 6, the buckles 6 are detachably connected with the track bed steel rails 4, the number of the steel wire ropes 5 is at least 2, each steel wire rope 5 respectively penetrates through the small pulleys 14 positioned on the same side of the movable trolley 1, and the steel wire ropes 5 respectively penetrate through the small pulleys 14 on the two sides of the movable trolley 1 and are parallel to each other;
four corners of the bottom of the moving trolley 1 are provided with universal simple pulleys 15 matched with the track bed steel rails 4, a cross beam 11 at the lower part of the moving trolley 1 is welded with a warm air blower support frame 16, and the warm air blower support frame 16 is provided with a warm air blower 2;
the flame-retardant cotton cloth 3 covers the movable trolley 1.
Moreover, the number of the moving trolleys 1 is at least 2.
Moreover, the warm air blower support frame 16 is of a grid-shaped structure and is composed of a plurality of iron sheets welded on the cross beam 11 in a transverse and longitudinal staggered manner.
Moreover, the movable trolley 1 is formed by welding square steel with the side length of 5CM, and is 1m long, 1.6m wide and 1m high; the distance between the two general simple pulleys 15 for the parallel railways, which cross the track bed steel rail 4, at the bottom of the moving trolley 1 is 1435 mm; the height of the small pulley 14 on the outer side of the longitudinal beam 12 is 0.85 m; the diameter of the steel wire rope 5 is 8 mm.
Moreover, the fan heater 2 adopts a fuel fan heater with the power of 30KW or 40 KM.
Moreover, 2 fan heaters 2 with opposite installation directions are arranged on the fan heater support frame 16.
The utility model discloses following beneficial effect has:
1. the utility model has small heat storage area and high heat storage function, shortens the solidification time of the concrete road bed, is beneficial to the rail car to transport materials required by each track construction in advance, greatly improves the construction progress in winter, and smoothly realizes the construction progress target;
2. the utility model has simple manufacture, less resource investment, high turnover utilization rate, fast turnover moving speed, saved construction cost and good economic effect; a remove greenhouse construction convenient operation for track concrete road bed winter construction, the potential safety hazard is little, and fail safe nature is strong.
3. The utility model discloses can realize keeping warm to the concrete roadbed in the construction winter, solve the problem of the track concrete roadbed construction difficulty winter in the north.
Drawings
FIG. 1 is a schematic structural view of a mobile cart;
FIG. 2 is a schematic view of a movable greenhouse connection for winter construction of a track concrete track bed;
FIG. 3 is a vertical cross-sectional view of a mobile greenhouse for winter construction of a track concrete track bed;
in the figure, 1-moving trolley, 2-warm air blower, 3-flame-retardant cotton cloth, 4-track bed steel rail, 5-steel wire rope, 6-buckle, 7-track bed, 11-cross beam, 12-longitudinal beam, 13-small pulley support column, 14-small pulley, 15-railway general simple pulley and 16-warm air blower support frame.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the embodiments of the present invention are not limited thereto, and the scope of the present invention should not be limited by the following examples.
The experimental methods used in the following examples are all conventional methods unless otherwise specified; the materials, reagents and the like used are commercially available unless otherwise specified.
Example 1
As shown in fig. 1-3, the movable warm shed for winter construction of the track concrete track bed comprises a movable trolley 1, a fan heater 2, flame-retardant cotton cloth 3 and a steel wire rope 5, wherein the movable trolley 1 is of a three-dimensional structure formed by welding square steel and comprises a cross beam 11 and a longitudinal beam 12, a small pulley support column 13 is welded on the outer side of the longitudinal beam 12, and a small pulley 14 is welded at the top end of the small pulley support column 13;
the two ends of each steel wire rope 5 are provided with buckles 6, the buckles 6 are detachably connected with the track bed steel rails 4, the number of the steel wire ropes 5 is at least 2, each steel wire rope 5 respectively penetrates through the small pulleys 14 positioned on the same side of the movable trolley 1, and the steel wire ropes 5 respectively penetrate through the small pulleys 14 on the two sides of the movable trolley 1 and are parallel to each other;
four corners of the bottom of the moving trolley 1 are provided with universal simple pulleys 15 matched with the track bed steel rails 4, a cross beam 11 at the lower part of the moving trolley 1 is welded with a warm air blower support frame 16, and the warm air blower support frame 16 is provided with a warm air blower 2;
the flame-retardant cotton cloth 3 covers the movable trolley 1.
In this embodiment, the number of the moving trolleys 1 is at least 2.
In this embodiment, the support frame 16 of the warm air blower is a grid structure and is composed of a plurality of iron sheets welded on the cross beam 11 in a transverse and longitudinal staggered manner.
In this embodiment, the ballast bed 7 is located below the ballast bed steel rail 4.
In the implementation, the movable trolley 1 is formed by welding square steel with the side length of 5CM, and is 1m long, 1.6m wide and 1m high;
the distance between the two general simple pulleys 15 for the parallel railways, which cross the track bed steel rail 4, at the bottom of the moving trolley 1 is 1435 mm; the height of the small pulley 14 on the outer side of the longitudinal beam 12 is 0.85 m; the diameter of the steel wire rope 5 is 8 mm.
In this embodiment, the fan heater 2 is a fuel fan heater with power of 30KW or 40 KM.
In this embodiment, 2 fan heaters 2 with opposite installation directions are arranged on the fan heater support frame 16.
Example 2
Application background: the first-stage project of No. 1 track of the track traffic of Haoyote city is in a vehicle section from three rooms in the west and all the way to a white tower parking lot along the Xinhua west street. The main line is provided with 20 stations, the west end of the line is provided with a vehicle section 1, and the east end of the line is provided with a parking lot 1. The total length of the whole line track laying is 69.7km, wherein the positive line track laying is 51.7km, the field section track laying is 18km, and 5 track laying bases are arranged on the whole line. According to the total construction period arrangement and the working face handover situation, about 70% of the whole track is laid in winter.
The local area belongs to the continental seasonal climate of the middle temperature zone, the climate change of four seasons is obvious, the difference is large, and the method is characterized in that: the climate change is severe in winter, short in summer and hot, and severe in spring and autumn. The average temperature of the coldest month is-12.7 to-16.1 ℃; the lowest historical temperature is-41.5 ℃. The local area enters a heating period from the beginning of 11 months to the end of heating at the beginning of 4 months in the next year, and a cold period of 5 months is passed.
According to the construction and acceptance regulations of structural engineering, the winter construction is carried out when the average outdoor daily temperature is stably lower than 5 ℃ for three consecutive days or the lowest temperature is lower than 0 ℃.
The concrete track bed in the underground section is linearly arranged, the construction length of the track bed in winter is about 35km, the construction period is short, the operation area is large, the workload is large, the station holes are not completely closed, and the like. In order to ensure the construction progress and the construction quality of the ballast bed, the heat storage and the heat preservation of the movable warm shed are applied.
The construction speed requirement is as follows: in order to ensure that the concrete can meet the requirement of 70% of design strength and the requirement of 75m winter ballast bed construction progress index every day in 48 hours of heat storage, each working face is provided with a 150m mobile greenhouse, and the specific application scheme is as follows:
a movable greenhouse is shown in figures 1-3 and comprises a movable trolley 1, a fan heater 2, flame-retardant cotton cloth 3 and a steel wire rope 5, wherein the movable trolley 1 is of a three-dimensional structure formed by welding square steel and comprises a cross beam 11 and a longitudinal beam 12, a small pulley support column 13 is welded on the outer side of the longitudinal beam 12, and a small pulley 14 is welded at the top end of the small pulley support column 13;
the two ends of each steel wire rope 5 are provided with buckles 6, the buckles 6 are detachably connected with the track bed steel rails 4, the number of the steel wire ropes 5 is at least 2, each steel wire rope 5 respectively penetrates through the small pulleys 14 positioned on the same side of the movable trolley 1, and the steel wire ropes 5 respectively penetrate through the small pulleys 14 on the two sides of the movable trolley 1 and are parallel to each other;
four corners of the bottom of the moving trolley 1 are provided with universal simple pulleys 15 matched with the track bed steel rails 4, a cross beam 11 at the lower part of the moving trolley 1 is welded with a warm air blower support frame 16, and the warm air blower support frame 16 is provided with a warm air blower 2;
the flame-retardant cotton cloth 3 covers the movable trolley 1.
In this embodiment, the number of the moving trolleys 1 is 6.
In this embodiment, the support frame 16 of the warm air blower is a grid structure and is composed of a plurality of iron sheets welded on the cross beam 11 in a transverse and longitudinal staggered manner.
In the implementation, the movable trolley 1 is formed by welding square steel with the side length of 5CM, and is 1m long, 1.6m wide and 1m high;
the distance between the two general simple pulleys 15 for the parallel railways, which cross the track bed steel rail 4, at the bottom of the moving trolley 1 is 1435 mm; the height of the small pulley 14 on the outer side of the longitudinal beam 12 is 0.85 m; the diameter of the steel wire rope 5 is 8 mm;
in this embodiment, according to the structure size and the distance of laying of removing the greenhouse, according to actual construction conditions, set for the distance between the single travelling car to be 25m, in order fully to satisfy the construction requirement, set up 40KW fuel electric fan heater on 2 travelling cars that are close to the entrance to a cave at removal greenhouse both ends, set up 40KW fuel electric fan heater on other 4 travelling cars of keeping away from the entrance to a cave. When the construction stage meets extremely cold weather, a warm air blower is additionally arranged on each movable trolley, and the movable trolleys are installed in the opposite direction.
The practical application is as follows: the movable warm shed is used for preserving heat of the concrete roadbed in winter, any low-temperature weather in winter can be responded, the strength of the concrete in 48 hours can be guaranteed to reach 70% of the design strength, the construction progress of 75 meters every day can be guaranteed, and a good effect is achieved. The method ensures that the track traffic line 1 of the downtown can be normally constructed in winter, ensures the construction period and makes contribution to the urban construction of downtown.
Claims (6)
1. The utility model provides a remove greenhouse that is used for track concrete road bed to be under construction winter, includes removal dolly (1), electric fan heater (2), fire-retardant cotton (3), wire rope (5), its characterized in that:
the moving trolley (1) is of a three-dimensional structure formed by welding square steel and comprises a cross beam (11) and a longitudinal beam (12), a small pulley support column (13) is welded on the outer side of the longitudinal beam (12), and a small pulley (14) is welded at the top end of the small pulley support column (13);
the two ends of each steel wire rope (5) are provided with buckles (6), the buckles (6) are detachably connected with the track bed steel rails (4), the number of the steel wire ropes (5) is at least 2, each steel wire rope (5) respectively penetrates through the small pulleys (14) on the same side of the movable trolley (1), and the steel wire ropes (5) respectively penetrate through the small pulleys (14) on the two sides of the movable trolley (1) and are parallel to each other;
four corners of the bottom of the moving trolley (1) are provided with universal simple pulleys (15) of a railway matched with the track bed steel rails (4), a cross beam (11) at the lower part of the moving trolley (1) is welded with an air heater support frame (16), and an air heater (2) is arranged on the air heater support frame (16);
the flame-retardant cotton cloth (3) covers the movable trolley (1).
2. A mobile greenhouse for winter construction of track concrete road beds as claimed in claim 1, wherein: the number of the movable trolleys (1) is at least 2.
3. A mobile greenhouse for winter construction of track concrete road beds as claimed in claim 1, wherein: the warm air blower support frame (16) is of a grid-shaped structure and is composed of a plurality of iron sheets welded on the cross beam (11) in a transverse and longitudinal staggered mode.
4. A mobile greenhouse for winter construction of track concrete road beds as claimed in claim 1, wherein: the movable trolley (1) is formed by welding square steel with the side length of 5CM, and is 1m long, 1.6m wide and 1m high; the distance between the two general simple pulleys (15) of the parallel railways, which cross the track bed steel rail (4), at the bottom of the moving trolley (1) is 1435 mm; the height of the small pulley (14) on the outer side of the longitudinal beam (12) is 0.85 m; the diameter of the steel wire rope (5) is 8 mm.
5. A mobile greenhouse for winter construction of track concrete road beds as claimed in claim 1, wherein: the warm air blower (2) adopts a fuel warm air blower with the power of 30KW or 40 KM.
6. A mobile greenhouse for winter construction of track concrete road beds as claimed in claim 1, wherein: and 2 warm air blowers (2) with opposite installation directions are arranged on the warm air blower support frame (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020989192.4U CN212294194U (en) | 2020-06-03 | 2020-06-03 | A remove greenhouse for track concrete road bed is under construction winter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020989192.4U CN212294194U (en) | 2020-06-03 | 2020-06-03 | A remove greenhouse for track concrete road bed is under construction winter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212294194U true CN212294194U (en) | 2021-01-05 |
Family
ID=73940834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020989192.4U Active CN212294194U (en) | 2020-06-03 | 2020-06-03 | A remove greenhouse for track concrete road bed is under construction winter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212294194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482259A (en) * | 2021-06-30 | 2021-10-08 | 上海宝冶集团有限公司 | Exterior wall stone-like paint spraying construction method in low-temperature environment |
-
2020
- 2020-06-03 CN CN202020989192.4U patent/CN212294194U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482259A (en) * | 2021-06-30 | 2021-10-08 | 上海宝冶集团有限公司 | Exterior wall stone-like paint spraying construction method in low-temperature environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212294194U (en) | A remove greenhouse for track concrete road bed is under construction winter | |
| CN108755327A (en) | A kind of photovoltaic Road System | |
| CN111851171A (en) | Movable greenhouse and method for carrying out winter concrete roadbed construction by using same | |
| CN101311413A (en) | Process for using underground passage combined with roads on ground as passage of trolley bus | |
| CN206858966U (en) | A kind of truss structure | |
| CN101307659A (en) | Storied building type channel | |
| CN105297561A (en) | Medium and low speed prefabricated reinforced concrete magnetic levitation beam and manufacturing method thereof | |
| CN210363830U (en) | Material thawing device for locomotive carriage | |
| CN101581159A (en) | Building channel | |
| CN207277171U (en) | A kind of straddle-seat type single traffic rail beam girder falling telescopic device | |
| CN102277839A (en) | Open hole construction additionally arranged on existing electrified railway and rapid construction method thereof | |
| CN210971052U (en) | Wagon heating device of wagon tipper | |
| CN213952287U (en) | Truss vehicle device for reconstruction and extension construction of existing overhead operation subway station | |
| CN210939226U (en) | Overhanging type power-concentrated motor train unit head car maintenance operation platform | |
| CN204570386U (en) | A kind of railway switch snow protection device | |
| CN210164272U (en) | Movable type sand stone warehouse heat preservation shed | |
| CN209620030U (en) | A kind of rain shade for foundation pit | |
| CN215716665U (en) | Simple construction rail car | |
| CN202073047U (en) | Increased open cut tunnel structure for existing electrified railway | |
| CN115595836B (en) | Construction method for sub-section process of underground iron prefabricated track slab track bed | |
| CN207376821U (en) | A kind of electronic rain shade suitable on Metro station excavation | |
| CN113250013A (en) | Ground electric heating ice and snow melting system for railway turnout | |
| CN101372825A (en) | Method for using underground passage combined with ground road as trolley bus passage | |
| CN202089067U (en) | City elevated light track traffic facility equipped with parallel elevator | |
| CN204055418U (en) | A kind of indoor are connected the equipment with isolation with outdoor contact wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |