CN111365028A - Concrete monitoring method based on variable-section adjustable lining trolley - Google Patents
Concrete monitoring method based on variable-section adjustable lining trolley Download PDFInfo
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- CN111365028A CN111365028A CN202010247117.5A CN202010247117A CN111365028A CN 111365028 A CN111365028 A CN 111365028A CN 202010247117 A CN202010247117 A CN 202010247117A CN 111365028 A CN111365028 A CN 111365028A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000009415 formwork Methods 0.000 claims abstract description 28
- 238000012423 maintenance Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000007797 corrosion Effects 0.000 claims abstract description 6
- 238000005260 corrosion Methods 0.000 claims abstract description 6
- 230000003020 moisturizing effect Effects 0.000 claims abstract description 5
- 238000004321 preservation Methods 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 44
- 230000001502 supplementing effect Effects 0.000 claims description 28
- 230000035699 permeability Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 24
- 239000013589 supplement Substances 0.000 description 16
- 230000008859 change Effects 0.000 description 7
- 238000013519 translation Methods 0.000 description 6
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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
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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
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
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Abstract
A concrete monitoring method based on a variable-section adjustable lining trolley comprises the following steps: s1: assembling from bottom to top to form a variable-section adjustable lining trolley; s2: supporting steel bars between the side formwork unit 2 and the top formwork unit 1 and the tunnel face, and arranging the pre-embedded corrosion monitoring sensors on the steel bars; s3: sequentially pouring concrete from bottom to top; s4: removing the mold after the mold removing condition is achieved; s5: coating the self-adhesive water-saving curing film on the surface of the lining for moisturizing and curing; s6: adopting inflatable canvas to closely adhere to the surface of the lining for heat preservation and maintenance; s7: by means of gas-permeable systemsThe tester is used for rapidly detecting the surface quality of the concrete; by using CO2The concentration sensor and the temperature and humidity sensor monitor the parameters of the concrete service environment for a long time. The construction method has the advantages of simple structure, low cost, convenient operation, capability of meeting the construction requirement of continuous sections and capability of improving the construction efficiency and the construction quality.
Description
Technical Field
The invention mainly relates to a tunnel transition section lining construction technology, in particular to a concrete monitoring method based on a variable section adjustable lining trolley.
Background
A tunnel transition section lining trolley is special equipment for tunnel construction and is used for lining construction of a tunnel section.
At present, the existing tunnel transition section lining trolley mainly comprises a framework unit, an arc-shaped template unit, a connecting template unit and a supporting unit, wherein the arc-shaped template unit consists of a top template, two side templates and two bottom templates. The supporting unit can push each side template to drive the corresponding bottom template to swing outwards, so that the outer contour of the template unit is expanded outwards, the requirement for tunnels with different sizes and sections is met, and the construction cost is reduced.
Because the arch part of the existing tunnel transition section lining trolley can not be adjusted, when the tunnel has a plurality of continuous sections, the trolley can not meet the construction requirements, and the maintenance and monitoring of the secondary lining concrete of the oversized section are difficult to implement.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a concrete monitoring method based on a variable-section adjustable lining trolley, which is convenient to operate, can meet the construction requirement of continuous sections and can improve the construction efficiency and the construction quality.
In order to solve the technical problems, the invention adopts the following technical scheme:
a concrete monitoring method based on a variable-section adjustable lining trolley comprises a plurality of top mould units, a pair of side mould units, a pair of top mould supporting beams, a pair of leveling mechanisms, a transverse moving frame, a middle supporting column, a pair of longitudinal and transverse moving lifting mechanisms and a pair of transverse adjusting oil cylinders; the monitoring method comprises the following steps:
s1: assembling the longitudinal and transverse moving lifting mechanism, the middle support column, the transverse adjusting oil cylinder, the transverse moving frame, the transverse adjusting mechanism, the top die support beam, the side die unit and the top die unit from bottom to top to form a variable-section adjustable lining trolley;
s2: supporting steel bars among the side formwork unit, the top formwork unit and the tunnel face, and arranging the pre-embedded corrosion monitoring sensors on the steel bars;
s3: sequentially pouring concrete from bottom to top;
s4: removing the mold after the mold removing condition is achieved;
s5: coating the self-adhesive water-saving curing film on the surface of the lining for moisturizing and curing;
s6: adopting inflatable canvas to closely adhere to the surface of the lining for heat preservation and maintenance;
s7: adopting a gas permeability coefficient tester to rapidly detect the surface quality of the concrete; by using CO2The concentration sensor and the temperature and humidity sensor monitor the parameters of the concrete service environment for a long time.
As a further improvement of the above technical solution:
when the transverse adjusting oil cylinder drives the pair of longitudinal transverse moving lifting mechanisms to drive the top die supporting beams to move towards two sides through the transverse moving frame and/or when the transverse adjusting mechanism drives the top die units and the top die supporting beams to move towards two sides, the two top die units at the arch top are disconnected with each other, so that a supplementary space is formed between the two top die supporting beams and between the two top die units positioned at the arch top, and then the top die supplementary units and the top die supplementary supporting frames are installed into the corresponding supplementary spaces and form supplementary connection with the corresponding top die units and the top die supporting beams to form a new arch top.
The horizontal adjusting mechanism comprises a horizontal moving oil cylinder and a pair of supporting tables, buckling wheels are arranged at the bottoms of the supporting tables, the supporting tables are arranged on the transverse moving frame at intervals in a sliding mode through the buckling wheels, the two ends of the horizontal moving oil cylinder are connected with the supporting tables, and the horizontal moving oil cylinder is hinged to the transverse moving frame.
The top die unit comprises a top die plate and a top die supporting piece, the top die plate is connected with the top die supporting beam through the top die supporting piece, and the corresponding pouring window is arranged on the top die plate.
The side formwork unit comprises a side formwork and a side formwork support piece, the side formwork is hinged to the top formwork, and the side formwork is connected with the side of the longitudinal and transverse moving lifting mechanism through the side formwork support piece.
The top die supplementing unit comprises a top die supplementing plate and a supplementing supporting rod, the top die supplementing plate is arranged in the supplementing space and hinged with the top die plate, the supplementing supporting rod is connected with the top die supplementing plate and the top die supplementing supporting frame, and the corresponding pouring window is arranged on the top die supplementing plate.
The transverse moving frame comprises an inner fixed beam and a pair of outer transverse moving sleeve frames, the inner fixed beam is fixedly connected with the top of the middle support column, the outer transverse moving sleeve frames are slidably arranged on the inner fixed beam, a pair of longitudinal and transverse moving lifting mechanisms are fixedly connected with the outer transverse moving sleeve frames on the corresponding sides, and a pair of leveling mechanisms are slidably connected with the outer transverse moving sleeve frames on the corresponding sides.
The cross sliding frame further comprises extension blocks, and the extension blocks are connected to the two ends of the inner fixed beam in a complementary mode.
The outer transverse moving sleeve frame is fixedly connected with the transverse moving frame, the transverse adjusting oil cylinder is connected with the transverse moving frame on the corresponding side, the lifting oil cylinder is installed on the transverse moving frame, longitudinal moving rollers are installed at the bottom of the lifting oil cylinder, and transverse moving rollers are arranged at the bottom of the transverse moving frame.
Compared with the prior art, the invention has the advantages that:
the invention relates to a concrete monitoring method based on a variable-section adjustable lining trolley, which is characterized in that self-adhesive water-saving maintenance films are coatedMaintaining the lining surface in a moisture-preserving manner, maintaining the lining surface in a heat-preserving manner by closely adhering inflatable canvas to the lining surface, and monitoring the lining surface in a pre-embedded manner by using a pre-embedded corrosion monitoring sensor, a gas permeability coefficient tester and CO2The concentration sensor and the temperature and humidity sensor are used for monitoring for a long time, so that the timely maintenance and effective improvement of the cracking condition are realized. The construction method is simple in structure and convenient to operate, can meet the construction requirement of continuous sections, greatly reduces the construction cost, and improves the construction efficiency and the construction quality.
Drawings
FIG. 1 is a schematic structural view of a variable-section adjustable lining trolley according to the present invention.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Fig. 3 is an enlarged schematic view of fig. 1 at B.
Fig. 4 is an enlarged schematic view of fig. 1 at C.
FIG. 5 is a schematic structural view showing an adjustment state of the variable-section adjustable lining trolley according to the present invention.
FIG. 6 is a schematic structural view of the adjustable lining trolley with variable cross-section according to the present invention after adjustment and supplement.
Fig. 7 is an enlarged schematic view of fig. 6 at D.
FIG. 8 is a flow chart of the concrete monitoring method based on the variable-section adjustable lining trolley.
The reference numerals in the figures denote:
1. a top die unit; 11. a top template; 12. a top die support; 121. a vertical support bar; 1211. a vertical screw rod; 1212. a vertical threaded rod; 122. an oblique supporting rod; 1221. an oblique screw rod; 1222. an oblique threaded sleeve rod; 13. a transverse pulling member; 131. a transverse screw rod; 132. a transverse threaded rod; 14. a locking mechanism; 141. a connecting seat; 142. a locking plate; 2. a side mold unit; 21. a side template; 22. a side form support; 221. a side form support bar; 2211. a side form threaded sleeve rod; 2212. a side form screw rod; 222. side form anchor rods; 3. a top form support beam; 4. a leveling mechanism; 41. a translation oil cylinder; 42. a support table; 43. a pinch roller; 5. a top mold supplement unit; 51. a top mold supplement plate; 52. supplementing the supporting rod; 521. a vertical supplementary screw rod; 522. vertically supplementing a threaded sleeve rod; 6. supplementing a support frame for the top die; 61. supplementing the beam; 62. a support beam; 63. erecting a beam; 7. transversely moving the frame; 71. an inner fixed beam; 72. the jacket frame is transversely moved; 73. a lengthening block; 8. a middle support column; 9. a vertically and horizontally moving and lifting mechanism; 91. a vertically and horizontally moving frame; 92. a lift cylinder; 93. longitudinally moving the roller; 94. transversely moving the roller; 10. and a transverse adjusting oil cylinder.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
Fig. 1 to 8 show an embodiment of the concrete monitoring method based on a variable-section adjustable lining trolley of the present invention, the lining trolley comprises a plurality of top formwork units 1, a pair of side formwork units 2, a pair of top formwork support beams 3, a pair of leveling mechanisms 4, a traverse carriage 7, a middle support column 8, a pair of traverse lifting mechanisms 9 and a pair of traverse cylinders 10; the monitoring method comprises the following steps:
s1: assembling a longitudinal and transverse moving lifting mechanism 9, a middle support column 8, a transverse adjusting oil cylinder 10, a transverse moving frame 7, a transverse adjusting mechanism 4, a top formwork support beam 3, a side formwork unit 2 and a top formwork unit 1 from bottom to top to form a variable-section adjustable lining trolley;
s2: supporting steel bars between the side formwork unit 2 and the top formwork unit 1 and the tunnel face, and arranging the pre-embedded corrosion monitoring sensors on the steel bars;
s3: sequentially pouring concrete from bottom to top;
s4: removing the mold after the mold removing condition is achieved;
s5: coating the self-adhesive water-saving curing film on the surface of the lining for moisturizing and curing;
s6: adopting inflatable canvas to closely adhere to the surface of the lining for heat preservation and maintenance;
s7: adopting a gas permeability coefficient tester to rapidly detect the surface quality of the concrete; by using CO2The concentration sensor and the temperature and humidity sensor monitor the parameters of the concrete service environment for a long time.
The invention carries out moisturizing maintenance by covering the self-adhesive water-saving maintenance film on the surface of the lining, carries out heat preservation maintenance by closely pasting the inflatable canvas on the surface of the lining,through a pre-embedded corrosion monitoring sensor, a gas permeability coefficient tester and CO2The concentration sensor and the temperature and humidity sensor are used for monitoring for a long time, so that the timely maintenance and effective improvement of the cracking condition are realized. The construction method is simple in structure and convenient to operate, can meet the construction requirement of continuous sections, greatly reduces the construction cost, and improves the construction efficiency and the construction quality.
In this embodiment, when the traverse cylinder 10 drives the pair of traverse lifting mechanisms 9 to drive the top mold supporting beams 3 to move towards both sides through the traverse frame 7 and/or when the traverse mechanism 4 drives the top mold units 1 and the top mold supporting beams 3 to move towards both sides, the two top mold units 1 at the arch top are disconnected from each other, so that the supplementary space is formed between the two top mold supporting beams 3 and between the two top mold units 1 at the arch top, and then the top mold supplementary units 5 and the top mold supplementary supporting frames 6 are installed in the corresponding supplementary spaces and form supplementary connections with the corresponding top mold units 1 and the top mold supporting beams 3 to form a new arch top. And the top die supplementing unit 5, the top die supplementing support frame 6 and the widened supplementing space form compensation, so that an arch structure adaptive to a new section is formed. And a strain gauge 15 is arranged on the new arch top for monitoring, so that the monitoring accuracy is further improved.
In this embodiment, leveling mechanism 4 includes translation hydro-cylinder 41 and a pair of supporting bench 42, and a pair of supporting bench 42 bottom is equipped with detains the wheel 43, and a pair of supporting bench 42 is interval cunning dress on sideslip frame 7 through detaining wheel 43, and a pair of supporting bench 42 is connected at the both ends of translation hydro-cylinder 41, and translation hydro-cylinder 41 is articulated with sideslip frame 7. When the width needs to be increased, the translation oil cylinder 41 is started, and as the support table 42 is slidably mounted on the traverse frame 7 through the buckle wheel 43, the support table 42 can move transversely on the traverse frame 7 to drive the top die unit 1 and the top die supporting beam 3 to move towards two sides, and when the required position is reached, the translation oil cylinder 41 is restrained by itself and the support table 42 is pressed downwards to realize positioning, so that the stability after the width is increased is ensured, and the structure is simple and the design is ingenious.
In this embodiment, the top die unit 1 includes a top die plate 11 and a top die support 12, and the top die plate 11 is connected to the top die support beam 3 through the top die support 12. Each top template 11 is connected with the top template supporting beam 3 through a top template supporting piece 12 to form a supporting system for the top templates 11, and the structure is simple and reliable.
In this embodiment, the top formwork support 12 includes a vertical support bar 121 and an oblique support bar 122, the vertical support bar 121 connects the top formwork 11 and the top formwork support beam 3, and the oblique support bar 122 connects the vertical support bar 121 and the top formwork support beam 3. Through the cooperation of vertical bracing piece 121 and diagonal bracing piece 122, improved the intensity of support system greatly.
In this embodiment, the vertical support rod 121 includes a vertical screw 1211 and a pair of vertical threaded rods 1212, one vertical threaded rod 1212 is hinged to the top die plate 11, the other vertical threaded rod 1212 is fixedly connected to the top die support beam 3, the vertical screw 1211 is in threaded connection with the pair of vertical threaded rods 1212, and the inclined support rod 122 is connected to the vertical threaded rod 1212 on the upper portion. In the structure, the change of the arc shape can be adapted through the hinge structure; and the adjustability of the distance between the top formwork 11 and the top formwork supporting beam 3 can be realized through the threaded connection of the vertical screw rod 1211 and the vertical threaded sleeve rod 1212, and the adaptability of the whole structure is further improved.
In this embodiment, the diagonal support rod 122 includes a diagonal screw rod 1221 and a pair of diagonal threaded sleeve rods 1222, the pair of diagonal threaded sleeve rods 1222 are respectively hinged to the vertical threaded sleeve rod 1212 and the top mold support beam 3, and the diagonal screw rod 1221 is in threaded connection with the pair of diagonal threaded sleeve rods 1222. The change of the arc shape can be adapted through the hinge structure; and through the threaded connection of slant lead screw 1221 and slant screw loop bar 1222, can realize the adjustability of interval between top form 11 and the top form supporting beam 3, further improved overall structure's adaptability.
In this embodiment, a horizontal pulling member 13 is connected between two vertical support rods 121 at the top of the arch. The arrangement of the transverse pull piece 13 improves the stability and strength between the two vertical support rods 121 on the top of the arch.
In this embodiment, the transverse pulling member 13 includes a transverse screw rod 131 and a pair of transverse threaded rods 132, the pair of transverse threaded rods 132 are respectively hinged to the vertical threaded rods 1212 at both sides, and the transverse screw rod 131 is in threaded connection with the pair of transverse threaded rods 132. The change of the arc shape can be adapted through the hinge structure; and through the threaded connection of the transverse screw rod 131 and the transverse threaded sleeve rod 132, the adjustability of the distance between the two vertical supporting rods 121 positioned at the top of the arch can be realized, and the adaptability of the whole structure is further improved.
In this embodiment, the side form unit 2 includes a side form 21 and a side form support 22, the side form 21 is hinged to the top form 11, and the side form 21 is connected to the side of the vertical and horizontal movement lifting mechanism 9 through the side form support 22. Each side template 21 is connected with the longitudinal and transverse moving lifting mechanism 9 through a side template supporting piece 22 to form a supporting system for the side templates 21, and the structure is simple and reliable.
In this embodiment, the side form supporting member 22 includes a side form supporting rod 221 and a side form anchor rod 222, the side form 21 is connected to the side of the longitudinal and transverse movement lifting mechanism 9 through the side form supporting rod 221, and the side form 21 is further connected to the bottom of the tunnel through the side form anchor rod 222. Through the cooperation of side forms bracing piece 221 and side forms stock 222, improved the intensity of support system greatly.
In this embodiment, the side mold support rod 221 includes a side mold threaded sleeve rod 2211 and a pair of side mold screws 2212, the pair of side mold screws 2212 are respectively hinged to the side mold plate 21 and the side of the vertical and horizontal movement lifting mechanism 9, and the side mold threaded sleeve rod 2211 is respectively in threaded connection with the pair of side mold screws 2212. The change of the arc shape can be adapted through the hinge structure; and the thread connection of the side die screw rod 2212 and the side die thread sleeve rod 2211 can realize the adjustability of the distance between the side die plate 21 and the longitudinal and transverse movement lifting mechanism 9, and further improve the adaptability of the whole structure.
In this embodiment, the adjacent top forms 11 are hinged to each other. Through mutual hinge joint between the top templates 11, the adjustability of radian is guaranteed, and the arc-shaped change can be adapted to.
In this embodiment, a locking mechanism 14 is provided between each adjacent top mold plate 11. The locking mechanism 14 can lock the top formwork 11 after being hinged and adjusted, and construction quality is greatly improved.
In this embodiment, the locking mechanism 14 includes a pair of connecting seats 141 and a locking plate 142, the pair of connecting seats 141 are respectively disposed on the adjacent top forms 11, and both ends of the locking plate 142 are respectively fastened to the corresponding connecting seats 141. In this structure, when each top form 11 is adjusted to a desired position, the locking is completed by the fastening connection between the locking piece 142 and the connecting seat 141, and the structure is simple and easy.
In this embodiment, the top mold supplement unit 5 includes a top mold supplement plate 51 and a supplement support rod 52, the top mold supplement plate 51 is disposed in the supplement space and hinged to the top mold plate 11, the supplement support rod 52 connects the top mold supplement plate 51 and the top mold supplement support frame 6, and the corresponding pouring window is disposed on the top mold supplement plate 51. A new vault structure is formed by hinging the top mould supplementing plate 51 with the top mould plates 11 at two sides, and then a support is formed by supplementing the support rod 52, so that the stability of the new vault structure is ensured.
In this embodiment, the supplementary support rod 52 includes a vertical supplementary screw 521 and a pair of vertical supplementary threaded rods 522, one vertical supplementary threaded rod 522 is hinged to the top mold supplementary plate 51, the other vertical supplementary threaded rod 522 is fixedly connected to the top mold supplementary support frame 6, and the vertical supplementary screw 521 is in threaded connection with the pair of vertical supplementary threaded rods 522. The change of the arc shape can be adapted through the hinge structure; and the adjustability of the distance between the top die supplement plate 51 and the top die supplement support frame 6 can be realized through the threaded connection of the vertical supplement screw rod 521 and the vertical supplement threaded sleeve rod 522, and the adaptability of the whole structure is further improved.
In this embodiment, the traverse frame 7 includes an inner fixed beam 71 and a pair of outer traverse frames 72, the inner fixed beam 71 is fixedly connected to the top of the middle support column 8, the outer traverse frames 72 are slidably mounted on the inner fixed beam 71, a pair of vertical and horizontal moving lifting mechanisms 9 is fixedly connected to the outer traverse frames 72 on the corresponding sides, and a pair of leveling mechanisms 4 is slidably connected to the outer traverse frames 72 on the corresponding sides. The transverse adjusting oil cylinder 10 drives the transverse moving lifting mechanism 9 to transversely move, so that the outer transverse moving sleeve frame 72 is driven to move on the inner fixing beam 71, the widening function is finally realized, and the structure is simple and ingenious.
In this embodiment, the cross-car frame 7 further includes an extension block 73, and the extension block 73 is additionally connected to both ends of the inner fixed beam 71. The arrangement of the extension block 73 can lengthen the inner fixed beam 71, considerably prolongs the variable stroke of the outer transverse moving sleeve frame 72, can adapt to the construction of a large-span variable-section tunnel, and has simple structure and ingenious conception.
In this embodiment, the vertical and horizontal movement lifting mechanism 9 includes a vertical and horizontal movement frame 91 and a lifting cylinder 92, the outer horizontal movement jacket frame 72 is fixedly connected with the vertical and horizontal movement frame 91, the horizontal adjustment cylinder 10 is connected with the vertical and horizontal movement frame 91 of the corresponding side, the lifting cylinder 92 is installed on the vertical and horizontal movement frame 91, a vertical movement roller 93 is installed at the bottom of the lifting cylinder 92, and a horizontal movement roller 94 is installed at the bottom of the vertical and horizontal movement frame 91. When the width needs to be widened, the transverse moving rail can be laid firstly, the transverse moving roller 94 at the bottom of the longitudinal and transverse moving frame 91 bears on the transverse moving rail, at the moment, the lifting oil cylinder 92 contracts to enable the longitudinal moving roller 93 to be separated from the longitudinal moving rail, then the transverse adjusting oil cylinder 10 is started to drive the longitudinal and transverse moving lifting mechanism 9 to transversely move, so that the outer transverse moving sleeve frame 72 is driven to move on the inner fixed beam 71, and finally the widening function is realized. The lifting oil cylinder 92 can also drive the top die unit 1 to descend, so that demolding is facilitated.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (9)
1. A concrete monitoring method based on a variable-section adjustable lining trolley is characterized in that the lining trolley comprises a plurality of top die units (1), a pair of side die units (2), a pair of top die supporting beams (3), a pair of leveling mechanisms (4), a transverse moving frame (7), a middle supporting column (8), a pair of longitudinal and transverse moving lifting mechanisms (9) and a pair of transverse adjusting oil cylinders (10); the monitoring method comprises the following steps:
s1: assembling a longitudinal and transverse moving lifting mechanism (9), a middle support column (8), a transverse adjusting oil cylinder (10), a transverse moving frame (7), a transverse adjusting mechanism (4), a top die support beam (3), a side die unit (2) and a top die unit (1) from bottom to top to form a variable-section adjustable lining trolley;
s2: supporting steel bars between the side formwork unit (2) and the top formwork unit (1) and the tunnel face, and arranging the pre-embedded corrosion monitoring sensors on the steel bars;
s3: sequentially pouring concrete from bottom to top;
s4: removing the mold after the mold removing condition is achieved;
s5: coating the self-adhesive water-saving curing film on the surface of the lining for moisturizing and curing;
s6: adopting inflatable canvas to closely adhere to the surface of the lining for heat preservation and maintenance;
s7: adopting a gas permeability coefficient tester to rapidly detect the surface quality of the concrete; by using CO2The concentration sensor and the temperature and humidity sensor monitor the parameters of the concrete service environment for a long time.
2. The concrete monitoring method based on the variable-section adjustable lining trolley as claimed in claim 1, wherein: when the transverse adjusting oil cylinder (10) drives the pair of longitudinal transverse moving lifting mechanisms (9) to drive the top die supporting beams (3) to move towards two sides through the transverse moving frame (7) and/or when the transverse adjusting mechanism (4) drives the top die units (1) and the top die supporting beams (3) to move towards two sides, the two top die units (1) at the arch top are disconnected with each other, so that a supplementary space is formed between the two top die supporting beams (3) and between the two top die units (1) at the arch top, and then the top die supplementary unit (5) and the top die supplementary supporting frame (6) are installed into the corresponding supplementary space and form supplementary connection with the corresponding top die units (1) and the top die supporting beams (3) to form a new arch top.
3. The concrete monitoring method based on the variable-section adjustable lining trolley as claimed in claim 2, wherein: the horizontal adjusting mechanism (4) comprises a horizontal moving oil cylinder (41) and a pair of supporting tables (42), buckling wheels (43) are arranged at the bottoms of the supporting tables (42), the supporting tables (42) are arranged on the transverse moving frame (7) in a sliding mode at intervals through the buckling wheels (43), the two ends of the horizontal moving oil cylinder (41) are connected with the supporting tables (42), and the horizontal moving oil cylinder (41) is hinged to the transverse moving frame (7).
4. The concrete monitoring method based on the variable-section adjustable lining trolley as claimed in claim 2 or 3, wherein: the top die unit (1) comprises a top die plate (11) and a top die supporting piece (12), the top die plate (11) is connected with the top die supporting beam (3) through the top die supporting piece (12), and the corresponding pouring window is arranged on the top die plate (11).
5. The concrete monitoring method based on the variable-section adjustable lining trolley as claimed in claim 4, wherein: the side form unit (2) comprises a side form plate (21) and a side form supporting piece (22), the side form plate (21) is hinged to the top form plate (11), and the side form plate (21) is connected with the side of the longitudinal and transverse moving lifting mechanism (9) through the side form supporting piece (22).
6. The concrete monitoring method based on the variable-section adjustable lining trolley as claimed in claim 4, wherein: the top die supplementing unit (5) comprises a top die supplementing plate (51) and a supplementing support rod (52), the top die supplementing plate (51) is arranged in the supplementing space and hinged with the top die plate (11), the supplementing support rod (52) is connected with the top die supplementing plate (51) and the top die supplementing support frame (6), and a corresponding pouring window is arranged on the top die supplementing plate (51).
7. The concrete monitoring method based on the variable-section adjustable lining trolley as claimed in claim 2 or 3, wherein: the transverse moving frame (7) comprises an inner fixed beam (71) and a pair of outer transverse moving sleeve frames (72), the inner fixed beam (71) is fixedly connected with the top of the middle support column (8), the outer transverse moving sleeve frames (72) are slidably arranged on the inner fixed beam (71), a pair of longitudinal and transverse moving lifting mechanisms (9) are fixedly connected with the outer transverse moving sleeve frames (72) on the corresponding sides, and a pair of horizontal adjusting mechanisms (4) are slidably connected with the outer transverse moving sleeve frames (72) on the corresponding sides.
8. The concrete monitoring method based on the variable-section adjustable lining trolley as claimed in claim 7, wherein: the cross sliding frame (7) further comprises an extension block (73), and the extension block (73) is connected to two ends of the inner fixing beam (71) in a supplementing mode.
9. The concrete monitoring method based on the variable-section adjustable lining trolley as claimed in claim 7, wherein: the transverse and longitudinal movement lifting mechanism (9) comprises a transverse and longitudinal movement frame (91) and a lifting oil cylinder (92), an outer transverse movement sleeve frame (72) is fixedly connected with the transverse and longitudinal movement frame (91), a transverse adjusting oil cylinder (10) is connected with the transverse and longitudinal movement frame (91) of the corresponding side, the lifting oil cylinder (92) is installed on the transverse and longitudinal movement frame (91), a longitudinal movement roller (93) is installed at the bottom of the lifting oil cylinder (92), and a transverse movement roller (94) is arranged at the bottom of the transverse and longitudinal movement frame (91).
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