CN112919929A - Steam type maintenance trolley and construction method - Google Patents
Steam type maintenance trolley and construction method Download PDFInfo
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- CN112919929A CN112919929A CN202110167370.4A CN202110167370A CN112919929A CN 112919929 A CN112919929 A CN 112919929A CN 202110167370 A CN202110167370 A CN 202110167370A CN 112919929 A CN112919929 A CN 112919929A
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- 238000012423 maintenance Methods 0.000 title claims abstract description 98
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 230000000712 assembly Effects 0.000 claims abstract description 22
- 238000000429 assembly Methods 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims description 52
- 238000009434 installation Methods 0.000 claims description 10
- 238000009415 formwork Methods 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 238000001723 curing Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 238000005507 spraying Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 210000004262 dental pulp cavity Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011897 real-time detection Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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Abstract
The invention provides a steam type maintenance trolley which comprises a support system and a sealing assembly, wherein the support system comprises a plurality of support units which are sequentially arranged along the longitudinal direction of a tunnel, the sealing assembly covers the working surface of the support system, the sealing assembly is in contact with a lining surface of the tunnel and is used for forming a sealed maintenance space between the lining surface and the sealing assembly, a steam nozzle is arranged on the sealing assembly, and steam for maintenance is conveyed into the maintenance space through the steam nozzle; the bracket unit comprises two groups of bracket assemblies which are symmetrically arranged, and the two groups of bracket assemblies are detachably connected; the bracket assembly includes a vertical support, a swing drive and a plurality of arcuate supports. The maintenance trolley can adapt to tunnels with different tunnel sections and large section span and height variation range, free selection of one-time maintenance length is realized, and the problem of individual requirements of complicated and variable tunnel section sizes on the maintenance trolley is effectively solved. The invention also provides a construction method of the steam type maintenance trolley.
Description
Technical Field
The invention relates to the technical field of tunnel maintenance, in particular to a steam type maintenance trolley and a construction method.
Background
Concrete curing is to create necessary humidity and temperature conditions for the process of gradually hardening concrete through hydration, and is an indispensable part in tunnel construction. In the tunnel construction process, spraying maintenance needs to be carried out for more than 7-14 days after the secondary lining concrete is poured. If the maintenance measures of the two-lining concrete are not proper, the strength of the concrete cannot quickly meet the design requirements, and temperature cracks and cracks are easily generated on the surface of the concrete, so that the construction quality of the tunnel is directly influenced.
At present, in domestic tunnel construction, natural curing, artificial fog gun curing and root canal spraying curing are generally adopted for concrete curing. The natural curing method is to cover the surface of the concrete and water the surface of the concrete by utilizing the natural condition that the average temperature is higher than 5 ℃ so as to provide the temperature and the humidity required by hydration. The maintenance method is greatly influenced by external environment and human factors, has poor maintenance effect, and is difficult to ensure the quality and the service life of the lining. The manual fog gun maintenance method is characterized in that workers use a fog gun machine to carry out water spraying maintenance on the surface of lined concrete, and the manual fog gun maintenance method has the defects that manpower is consumed, a channel is occupied during maintenance, and normal passing of tunnel construction equipment is influenced; the root canal spraying maintenance has the defects of poor maintenance water spraying effect and incapability of fully covering the maintenance area. And the manual fog gun maintenance and root canal spraying maintenance methods have the defects that the maintenance water temperature and the surface temperature of the concrete to be maintained have larger difference, and the concrete is easy to crack and crack due to the cold water.
The maintenance method has the problems of long maintenance period, uneven maintenance and low intelligent degree. With the development of the technology, a maintenance trolley for maintenance is developed by a plurality of companies, but the existing trolley has the defects that the size of the main body of the trolley is fixed, and the maintenance requirements of different section sizes cannot be met.
In view of the above, there is a need for a steam type maintenance trolley and a construction method thereof to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a steam type maintenance trolley and a construction method, aiming at solving the problems that the existing maintenance method has longer maintenance period, uneven maintenance and low intelligent degree; the size of the trolley main body is fixed, the problems that the maintenance requirements of different section sizes cannot be met, the maintenance length is limited at one time and the trolley is not flexible are solved, and the specific technical scheme is as follows:
a steam type maintenance trolley is characterized by comprising a support system and a sealing assembly, wherein the support system comprises a plurality of support units which are sequentially arranged along the longitudinal direction of a tunnel, the sealing assembly covers the working surface of the support system, the sealing assembly is in contact with the lining surface of the tunnel and is used for forming a sealed maintenance space between the lining surface and the sealing assembly, a steam nozzle is arranged on the sealing assembly, and steam for maintenance is conveyed into the maintenance space through the steam nozzle;
the bracket unit comprises two groups of bracket assemblies which are symmetrically arranged, and the two groups of bracket assemblies are detachably connected; the support component comprises a vertical support, a swinging driving piece and a plurality of arc supports, the plurality of arc supports are sequentially arranged, adjacent arc supports are rotatably connected, the vertical support is rotatably connected with one arc support positioned at the end part, and the swinging driving piece is connected between the vertical support and the arc supports and between the adjacent arc supports.
Preferred among the above technical scheme, vertical braces and arc support are telescopic socket joint structure, set up flexible driving piece between two parts that cup joint each other, support through flexible driving piece drive vertical braces or arc and stretch out and draw back.
Preferred among the above technical scheme, vertical braces is including the interior support piece that cup joints in proper order, connecting support piece and outer support piece, all be equipped with flexible driving piece between interior support piece and the connecting support piece and between connecting support piece and the outer support piece, flexible driving piece is used for driving vertical braces extension or shortens.
Preferably among the above technical scheme, still be connected with scalable landing leg on the vertical braces, scalable landing leg rotates with one in interior support piece, connection support piece and the outer support piece and is connected, scalable landing leg is used for supporting vertical braces.
Preferred among the above technical scheme, the arc supports including the interior arc support piece and the outer arc support piece that cup joint, interior arc support piece and outer arc support piece are equipped with flexible driving piece within a definite time, support the extension or shorten through flexible driving piece drive arc.
Preferably, in the above technical solution, between the vertical support and the arc-shaped support, the outer support is rotatably connected with the inner arc-shaped support, and the swing driving member is connected with the outer arc-shaped support and the outer support;
between adjacent arc supports, an outer arc support in the upper arc support is rotationally connected with an inner arc support in the next arc support, and the swing driving piece is connected with two outer arc supports in the adjacent arc supports;
and the two groups of bracket assemblies are connected through two outer arc-shaped supporting pieces far away from one end of the vertical support.
Preferably, in the above technical scheme, the sealing assembly comprises a film and an air bag, the film covers the working surface of the support system, the air bag is arranged on the film and arranged along the periphery of the working surface of the support system, and the air bag is in contact with the lining surface of the tunnel to realize that the lining surface, the air bag and the film form a maintenance space; the steam nozzle is arranged on the film; the membrane and the air bag are of an integrated structure, and the membrane is connected with the bracket system through a fixing ring.
Preferably among the above technical scheme, seal assembly still includes temperature sensor and humidity transducer, temperature sensor and humidity transducer set up in on the film, temperature sensor and humidity transducer are used for measuring the temperature and the humidity in the maintenance space respectively.
Preferably, the maintenance system further comprises a transportation device, the transportation device comprises a chassis system, an electric hydraulic steam system and a formwork transportation system, the electric hydraulic steam system and the formwork transportation system are arranged on the chassis system, the electric hydraulic steam system is used for conveying steam in the maintenance space and monitoring the temperature and humidity in the maintenance space, and the formwork support system is used for transporting the support assembly;
the template conveying system comprises a rotary device, a transverse sliding mechanism and a lifting mechanism, wherein the rotary device is arranged on the chassis system, the transverse sliding mechanism is arranged on the rotary device, and the lifting mechanism is arranged on the transverse sliding mechanism.
The invention also provides a construction method of the steam type maintenance trolley, which is characterized by comprising the following steps of:
step 2: placing one of the support assemblies on a lifting mechanism of a conveying device, conveying the support assembly to a construction position by the conveying device, and rotating the vertical support to an installation side by the rotation of the rotating device;
and step 3: the transverse sliding mechanism moves transversely according to the bracket component on the lifting mechanism: the bracket assembly on the lifting mechanism is arranged on the left side, and the transverse sliding mechanism moves transversely leftwards; the bracket assembly on the lifting mechanism is arranged on the right side, and the transverse sliding mechanism moves to the right side;
and 4, step 4: the lifting mechanism lifts, the vertical support extends to contact with the ground, and the telescopic support legs extend to support the vertical support;
and 5: each arc-shaped support extends to match the profile shape of the section of the tunnel, the transverse sliding mechanism resets, and the transportation device retreats;
step 6: repeating the step 2 to the step 5, mounting the rest support assembly to the position corresponding to the mounted support assembly, and fixing the two support assemblies to complete the mounting of one support unit;
and 7: repeating the steps 1 to 6, and installing the rest support units according to the construction length of the tunnel to form a complete support system;
and 8: arranging a sealing assembly on a working surface of the bracket system, connecting a steam nozzle with a conveying pipeline, and inflating an air bag in the sealing assembly to realize contact sealing of the air bag and the lining surface;
and step 9: the steam nozzle delivers steam for maintenance to maintain the lining surface.
The technical scheme of the invention has the following beneficial effects:
according to the maintenance trolley disclosed by the invention, the air bag is attached and sealed with tunnel lining surfaces with different tunnel heights and different arch crown radians through the vertical support, the stretching of the arc support and the swinging of the arc support. The maintenance trolley disclosed by the invention can adapt to tunnels with different tunnel sections and large section span and height change ranges, and effectively solves the problem of individual requirements of complicated and variable tunnel section sizes on the maintenance trolley.
And a plurality of support units are modularly spliced along the longitudinal direction of the tunnel to form a support system, and a sealing assembly is arranged on the support system, so that the free selection of one-time maintenance length can be realized. In actual use, different numbers of splicing rings can be determined according to the length of the tunnel and the specific maintenance requirement, so that longer or shorter maintenance length at one time can be realized.
The maintenance trolley conveying device is combined with the support system and the sealing assembly to form a split design, the support assembly is conveyed to a construction point through the conveying device, the position of the support assembly is adjusted when the support assembly is positioned through the template conveying system, the mechanical assembly and positioning of the main body structure of the maintenance trolley are realized, the labor intensity is greatly reduced, and the installation period is shortened; compared with the traditional portal type maintenance trolley structure, the expansion type installation and positioning of the trolley support system can be realized quickly, and the channel is not occupied during maintenance, so that other construction equipment can pass through the channel conveniently.
The maintenance trolley forms a sealed maintenance space through the sealing assembly and the lining surface, the maintenance period is short, the maintenance is not influenced by the environment, the maintenance is uniform, and the maintenance area is fully covered; a temperature sensor and a humidity sensor are arranged on a film of the sealing assembly, so that the temperature and the humidity in the maintenance space can be measured, and an intelligent control mechanism for feedback adjustment is formed according to the temperature and the humidity detected in real time. Setting curing temperature and humidity parameters through analyzing the relationship between the temperature and humidity in the curing space and the concrete strength, and carrying out automatic and intelligent curing; the method avoids crack generation caused by large temperature difference between water and concrete, prevents arch wall cracks and improves concrete curing quality.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view showing the overall construction of a maintenance truck according to the present invention;
FIG. 2 is a schematic structural view of the holder unit of FIG. 1;
FIG. 3 is a schematic view of the structure of the arcuate support of FIG. 2;
FIG. 4 is a schematic view of the structure of the vertical support of FIG. 2;
FIG. 5 is a partial cross-sectional view of the vertical support;
fig. 6 is a flow chart of the maintenance cart installation (the left side bracket assembly installation is shown in the figure):
the device comprises a support unit 1, a support unit 1.1, a vertical support 1.1, an inner support 1.1.2, a connecting support 1.1.3, an outer support 1.2, an arc support 1.2, an inner arc support 1.2.1, an outer arc support 1.2, an outer arc support 1.3, a swing drive 1.4, a telescopic support leg 1.5, a telescopic drive 2, a sealing assembly 3 and a transportation device.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Example 1:
referring to fig. 1 to 5, a steam type maintenance trolley comprises a support system and a sealing assembly, wherein the support system comprises a plurality of support units which are sequentially arranged along the longitudinal direction of a tunnel, the sealing assembly covers the working surface of the support system, the sealing assembly is in contact with the lining surface of the tunnel and is used for forming a sealed maintenance space between the lining surface and the sealing assembly, a steam nozzle is arranged on the sealing assembly, and steam for maintenance is conveyed into the maintenance space through the steam nozzle;
the support unit comprises two groups of support assemblies which are symmetrically arranged, the two groups of support assemblies are detachably connected, and the two groups of support assemblies are respectively arranged on the left side and the right side of the tunnel; the bracket assembly comprises a vertical support 1.1, a swinging driving piece 1.3 and a plurality of arc supports 1.2, the arc supports 1.2 are sequentially arranged, adjacent arc supports 1.2 are rotatably connected, the vertical support 1.1 is rotatably connected with one arc support 1.2 at the end part, and the swinging driving piece 1.3 is connected between the vertical support 1.1 and the arc supports 1.2 and between the adjacent arc supports 1.2; one surfaces of the vertical supports 1.1 and the arc supports 1.2 facing the lining surface are working surfaces; the work surfaces of the plurality of rack assemblies form the work surfaces of the rack system.
Referring to fig. 1, only one rack unit is illustrated in fig. 1, on which a sealing assembly is provided; in actual construction, a plurality of bracket units can be arranged according to actual conditions, adjacent bracket units are connected through bolts, and a sealing assembly is arranged on a bracket system formed by the plurality of bracket units.
The vertical support 1.1 and the arc-shaped support 1.2 are telescopic sleeved structures, a telescopic driving piece 1.5 is arranged between the two parts which are sleeved with each other, and the telescopic driving piece 1.5 drives the vertical support 1.1 or the arc-shaped support 1.2 to stretch; the number of the sleeved parts and the length of a single part can be set according to actual conditions in the vertical supports 1.1 and the arc supports 1.2, so that the movement strokes of the vertical supports 1.1 and the arc supports 1.2 can meet actual use requirements.
In this embodiment, preferably, the vertical support 1.1 includes an inner support 1.1.1, a connecting support 1.1.2, and an outer support 1.1.3, which are sequentially sleeved, a telescopic driving member 1.5 is disposed between the inner support 1.1.1 and the connecting support 1.1.2, and between the connecting support 1.1.2 and the outer support 1.1.3, and the telescopic driving member 1.5 is used for driving the vertical support 1.1 to extend or shorten.
The vertical support 1.1 is further connected with a telescopic supporting leg 1.4, the telescopic supporting leg 1.4 is rotatably connected with one of the inner support 1.1.1, the connecting support 1.1.2 and the outer support 1.1.3, and the telescopic supporting leg 1.4 is used for supporting the vertical support 1.1.
Preferably, the telescopic supporting leg 1.4 can be an oil cylinder or an air cylinder, or an existing product with a telescopic function is directly purchased; the telescopic leg 1.4 is in this embodiment pivotally connected to the support member 1.1.2, see fig. 1 and 2.
Arc supports 1.2 including the interior arc support piece 1.2.1 and the outer arc support piece 1.2.2 that cup joint, interior arc support piece 1.2.1 and outer arc support piece 1.2.2 are equipped with flexible driving piece 1.5 within a definite time, support 1.2 extension or shorten through flexible driving piece 1.5 drive arc.
Referring to fig. 5, in the vertical support 1.1, the telescopic driving member 1.5 is arranged inside the vertical support 1.1; likewise, in the arc support 1.2, the telescopic drive 1.5 is arranged inside the arc support 1.2.
Preferably, the telescopic driving element 1.5 and the swing driving element 1.3 are both oil cylinders or air cylinders.
Between the vertical support 1.1 and the arc-shaped support 1.2, the outer support 1.1.3 is rotationally connected with the inner arc-shaped support 1.2.1, and the swing driving piece 1.3 is connected with the outer arc-shaped support 1.2.2 and the outer support 1.1.3;
between adjacent arc supports 1.2, an outer arc support 1.2.2 in the upper arc support 1.2 is rotationally connected with an inner arc support 1.2.1 in the next arc support 1.2, and the swing driving piece 1.3 is connected with two outer arc supports 1.2.2 in the adjacent arc supports 1.2;
between the two sets of bracket assemblies, there is a connection, preferably by bolts, by two pieces of outer arcuate support members 1.2.2 at the end remote from the vertical supports 1.1.
Preferably, the vertical supports and the arc supports and the adjacent arc supports can be hinged or connected through bolts.
Referring to fig. 1, the sealing assembly includes a film and an airbag, the film covers a working surface of the support system, the airbag is disposed on the film and is disposed along the periphery of the working surface of the support system, and the airbag is in contact with a lining surface of the tunnel to form a maintenance space by the lining surface, the airbag and the film; preferably, the steam spray head is arranged on the film.
The sealing assembly further comprises a temperature sensor and a humidity sensor, wherein the temperature sensor and the humidity sensor are arranged on the film and are respectively used for measuring the temperature and the humidity in the maintenance space, and a feedback adjustment intelligent control mechanism is formed according to the real-time detection temperature and the real-time detection humidity. Setting curing temperature and humidity parameters through analyzing the relationship between the temperature and humidity in the curing space and the concrete strength, and carrying out automatic and intelligent curing; the method avoids crack generation caused by large temperature difference between water and concrete, prevents arch wall cracks and improves concrete curing quality.
Preferably, the film is provided with a sensor interface, and the interface is provided with threads; the temperature sensor and the humidity sensor are directly screwed at the interface through threads;
the film and the air bag are of an integrated structure, the film is connected with the bracket system through the fixing ring, and the fixing ring and the bracket system can be connected through a binding belt.
Steam formula maintenance platform truck still includes conveyer 3, and conveyer 3 is split type structure with the combination of mounting system and seal assembly in this embodiment, conveyer 3 includes chassis system and sets up electric hydraulic pressure steam system and template conveying system on chassis system, electric hydraulic pressure steam system is arranged in to carrying steam and monitoring maintenance temperature and humidity in the space in the maintenance space, and electric hydraulic pressure steam system still is arranged in the action of hydro-cylinder or cylinder among the control support system simultaneously, template braced system is used for transporting the support assembly.
The template conveying system comprises a rotary device, a transverse sliding mechanism and a lifting mechanism, wherein the rotary device is arranged on the chassis system, the transverse sliding mechanism is arranged on the rotary device, and the lifting mechanism is arranged on the transverse sliding mechanism.
The transportation device is designed in the prior art, and can be set by a person in the field according to actual conditions, and the transportation device is simply explained in the embodiment.
The chassis system can select the existing crawler-type chassis, is suitable for the complicated ground working condition of the tunnel, and is used for the walking of the whole transportation device.
The electric hydraulic steam system integrates an electric system, a hydraulic system and a water vapor system into a whole, wherein the water vapor system comprises a water tank, a steam generator and a conveying pipeline and is fixed on a chassis system (the electric system and the hydraulic system are in the prior art and are not further described here); the water tank provides water required by the steam generator, the water tank is connected to the steam generator through a conveying pipeline, and the steam generator is connected with the conveying pipeline to the position of the steam nozzle on the film.
The rotary device consists of a rotary support and a rotary motor, and the rotary support and the rotary motor are both arranged on the chassis system; the transverse sliding mechanism comprises a sliding rail assembly and a driving motor, the sliding rail assembly is arranged on the slewing bearing, the lifting mechanism is arranged on a sliding piece on the sliding rail assembly, the driving motor drives the lifting mechanism to transversely move, and the rotary motor drives the lifting mechanism and the transverse sliding mechanism to rotate together; lifting mechanism can choose hydraulic cylinder for use, realizes with bracket component jack-up through hydraulic cylinder is flexible, for the convenience of placing the bracket component, can set up the smooth board of placing on hydraulic cylinder's piston rod, places the bracket component on placing the board, guarantees the stationarity of bracket component on lifting mechanism.
Referring to the processes (a) to (f) in fig. 6 (fig. 6 illustrates the installation process of the left bracket assembly), the method of using the maintenance cart of the present embodiment is:
step 2: placing one of the bracket assemblies on a lifting mechanism of a transportation device and transporting the bracket assembly to a construction position by the transportation device, wherein the rotation device rotates the vertical support to the installation side (as shown in (a) of figure 6);
and step 3: the transverse sliding mechanism moves transversely according to the bracket component on the lifting mechanism: the bracket assembly on the lifting mechanism is arranged on the left side, and the transverse sliding mechanism moves leftwards (as shown in (b) in fig. 6); the bracket assembly on the lifting mechanism is arranged on the right side, and the transverse sliding mechanism moves to the right side;
and 4, step 4: lifting by a lifting mechanism, extending the vertical support to contact with the ground, and extending the telescopic supporting legs to support the vertical support (as shown in (c) and (d) in fig. 6);
and 5: extending each arc-shaped support to match the profile shape of the section of the tunnel, resetting the transverse sliding mechanism (as shown in (e) and (f) in fig. 6), and withdrawing the transportation device;
step 6: repeating the step 2 to the step 5, mounting the rest support assembly to the position corresponding to the mounted support assembly, and fixing the two support assemblies to complete the mounting of one support unit;
and 7: repeating the steps 1 to 6, and installing the rest support units according to the construction length of the tunnel to form a complete support system;
and 8: arranging a sealing assembly on a working surface of the bracket system, connecting a steam nozzle with a conveying pipeline, and inflating an air bag in the sealing assembly to realize contact sealing of the air bag and the lining surface;
and step 9: the steam nozzle delivers steam for maintenance to maintain the lining surface.
The steam delivery of the steam generator is automatically controlled by the temperature sensor and the humidity sensor, and the steam output of the spray head and the real-time detection of the temperature and the humidity form a feedback adjustment intelligent control mechanism, so that the automatic and intelligent cyclic maintenance is realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A steam type maintenance trolley is characterized by comprising a support system and a sealing assembly, wherein the support system comprises a plurality of support units which are sequentially arranged along the longitudinal direction of a tunnel, the sealing assembly covers the working surface of the support system, the sealing assembly is in contact with the lining surface of the tunnel and is used for forming a sealed maintenance space between the lining surface and the sealing assembly, a steam nozzle is arranged on the sealing assembly, and steam for maintenance is conveyed into the maintenance space through the steam nozzle;
the bracket unit comprises two groups of bracket assemblies which are symmetrically arranged, and the two groups of bracket assemblies are detachably connected; the support component comprises a vertical support (1.1), a swinging driving piece (1.3) and a plurality of arc supports (1.2), wherein the plurality of arc supports (1.2) are sequentially arranged, adjacent arc supports (1.2) are rotationally connected, the vertical support (1.1) is rotationally connected with one arc support (1.2) positioned at the end part, and the swinging driving piece (1.3) is connected between the vertical support (1.1) and the arc supports (1.2) and between the adjacent arc supports (1.2).
2. A steam maintenance trolley according to claim 1, characterized in that the vertical support (1.1) and the arc support (1.2) are both telescopic sleeves, a telescopic driving member (1.5) is arranged between the two parts which are sleeved with each other, and the vertical support (1.1) or the arc support (1.2) is driven to be telescopic by the telescopic driving member (1.5).
3. The steam maintenance trolley according to claim 2, wherein the vertical support (1.1) comprises an inner support (1.1.1), a connecting support (1.1.2) and an outer support (1.1.3) which are sequentially sleeved, telescopic driving members (1.5) are arranged between the inner support (1.1.1) and the connecting support (1.1.2) and between the connecting support (1.1.2) and the outer support (1.1.3), and the telescopic driving members (1.5) are used for driving the vertical support (1.1) to extend or shorten.
4. A steam maintenance trolley according to claim 3, characterized in that a telescopic leg (1.4) is also connected to the vertical support (1.1), the telescopic leg (1.4) being rotatably connected to one of the inner support (1.1.1), the connecting support (1.1.2) and the outer support (1.1.3), the telescopic leg (1.4) being used to support the vertical support (1.1).
5. A steam maintenance trolley according to claim 4, characterized in that the arc support (1.2) comprises a sleeved inner arc support (1.2.1) and an outer arc support (1.2.2), a telescopic driving member (1.5) is arranged between the inner arc support (1.2.1) and the outer arc support (1.2.2), and the arc support (1.2) is driven to extend or shorten by the telescopic driving member (1.5).
6. A steam maintenance trolley according to claim 5, characterized in that between the vertical support (1.1) and the arc support (1.2), the outer support (1.1.3) is rotatably connected with the inner arc support (1.2.1), and the swing drive (1.3) connects the outer arc support (1.2.2) and the outer support (1.1.3);
between adjacent arc supports (1.2), an outer arc support (1.2.2) in the upper arc support (1.2) is rotationally connected with an inner arc support (1.2.1) in the lower arc support (1.2), and the swinging driving piece (1.3) is connected with two outer arc supports (1.2.2) in the adjacent arc supports (1.2);
between the two groups of bracket assemblies, two pieces of outer arc-shaped supporting pieces (1.2.2) are connected at one end far away from the vertical support (1.1).
7. A steam maintenance trolley according to any one of claims 1 to 6, wherein the sealing assembly comprises a film and an air bag, the film covers the working surface of the support system, the air bag is arranged on the film and arranged along the periphery of the working surface of the support system, and the air bag is in contact with the lining surface of the tunnel to form a maintenance space by the lining surface, the air bag and the film; the steam nozzle is arranged on the film; the membrane and the air bag are of an integrated structure, and the membrane is connected with the bracket system through a fixing ring.
8. A steam maintenance trolley according to claim 7, wherein the sealing assembly further comprises a temperature sensor and a humidity sensor, the temperature sensor and the humidity sensor being disposed on the membrane, the temperature sensor and the humidity sensor being for measuring the temperature and the humidity, respectively, within the maintenance space.
9. A steam maintenance trolley according to claim 7, further comprising a transportation device (3), the transportation device (3) comprising a chassis system and an electro-hydraulic steam system and a formwork transportation system arranged on the chassis system, the electro-hydraulic steam system being adapted to transport steam and monitor temperature and humidity within the maintenance space, the formwork support system being adapted to transport the carriage assembly;
the template conveying system comprises a rotary device, a transverse sliding mechanism and a lifting mechanism, wherein the rotary device is arranged on the chassis system, the transverse sliding mechanism is arranged on the rotary device, and the lifting mechanism is arranged on the transverse sliding mechanism.
10. A construction method of a steam maintenance trolley according to claim 9, comprising the steps of:
step 1, determining the number of arc supports in a support assembly according to the profile of a tunnel section, assembling two symmetrical support assemblies and waiting for installation;
step 2: placing one of the support assemblies on a lifting mechanism of a conveying device, conveying the support assembly to a construction position by the conveying device, and rotating the vertical support to an installation side by the rotation of the rotating device;
and step 3: the transverse sliding mechanism moves transversely according to the bracket component on the lifting mechanism: the bracket assembly on the lifting mechanism is arranged on the left side, and the transverse sliding mechanism moves transversely leftwards; the bracket assembly on the lifting mechanism is arranged on the right side, and the transverse sliding mechanism moves to the right side;
and 4, step 4: the lifting mechanism lifts, the vertical support extends to contact with the ground, and the telescopic support legs extend to support the vertical support;
and 5: each arc-shaped support extends to match the profile shape of the section of the tunnel, the transverse sliding mechanism resets, and the transportation device retreats;
step 6: repeating the step 2 to the step 5, mounting the rest support assembly to the position corresponding to the mounted support assembly, and fixing the two support assemblies to complete the mounting of one support unit;
and 7: repeating the steps 1 to 6, and installing the rest support units according to the construction length of the tunnel to form a complete support system;
and 8: arranging a sealing assembly on a working surface of the bracket system, connecting a steam nozzle with a conveying pipeline, and inflating an air bag in the sealing assembly to realize contact sealing of the air bag and the lining surface;
and step 9: the steam nozzle delivers steam for maintenance to maintain the lining surface.
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