CN113685185B - Vertical shaft concrete lining suspension necking construction device and method - Google Patents
Vertical shaft concrete lining suspension necking construction device and method Download PDFInfo
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- CN113685185B CN113685185B CN202110962975.2A CN202110962975A CN113685185B CN 113685185 B CN113685185 B CN 113685185B CN 202110962975 A CN202110962975 A CN 202110962975A CN 113685185 B CN113685185 B CN 113685185B
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- lining
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- 239000000725 suspension Substances 0.000 title claims abstract description 56
- 238000010276 construction Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 121
- 239000000463 material Substances 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 16
- 230000007547 defect Effects 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims description 36
- 230000002787 reinforcement Effects 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 9
- 230000005641 tunneling Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 2
- 238000003908 quality control method Methods 0.000 abstract description 7
- 230000008030 elimination Effects 0.000 abstract description 3
- 238000003379 elimination reaction Methods 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/12—Accessories for making shaft linings, e.g. suspended cradles, shutterings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/04—Lining shafts; Linings therefor with brick, concrete, stone, or similar building materials
Abstract
A vertical shaft concrete lining suspension necking construction device and method comprises a module, a demolding mechanism, a distributing mechanism and a suspension mechanism, wherein the module is formed by connecting a main die and a necking die, the main die is of a hinged folding structure, the necking die is of a sliding surface sliding structure, the demolding mechanism is connected with the necking die, the suspension mechanism is positioned at the upper part of a vertical shaft of the main die, the distributing mechanism is positioned between the main die and the suspension mechanism, the suspension mechanism releases the main die into the shaft bottom, lining is performed from top to bottom or from bottom to top through the main die, or sliding lining is performed, in the lining process, the necking die or expansion opening is driven by the demolding mechanism, the distributing mechanism is used for uniformly distributing materials, the adaptability is good, a plurality of sets of templates are not needed for short-section and long-section vertical shaft lining, frequent disassembly is not needed, the defect elimination is facilitated, the quality control difficulty is reduced, the construction efficiency is improved, and the operation is simple and convenient.
Description
Technical Field
The invention belongs to the technical field of shaft lining, and relates to a device and a method for constructing a suspension necking of a shaft concrete lining.
Background
When the shaft lining is constructed, in order to ensure construction safety, a long-section digging and building or short-section digging and building construction scheme is adopted to carry out well wall concrete lining according to the stability of surrounding rock while timely carrying out well wall support; the lining is usually carried out by layering and sectioning by adopting a combined steel template. The traditional shaft concrete lining method has the advantages of high resource investment, frequent process conversion, limited construction speed, high quality control difficulty and relatively high engineering cost. The system analysis mainly has the following prominent defects and shortcomings:
a short-section digging and building method or a long-section digging and building method is adopted, a plurality of sets of combined templates are manufactured, and the manual installation, the disassembly, the concrete pouring and the like are frequently carried out in a layered manner from bottom to top, so that the investment of manpower resources and material resources is more, the construction speed is restricted, and the engineering cost is increased.
The concrete is layered, the construction and parting are more, the concrete joint is more, the steel bar overlap joint is more, and the engineering quality control difficulty is high; meanwhile, the concrete can be demolded after being strong, construction defects cannot be found at any time in the construction process, effective treatment cannot be achieved timely, effective maintenance cannot be carried out on the concrete, and quality control difficulty is increased.
The templates are disassembled for multiple times, concrete is constructed in a layered mode, the working procedures are frequently alternated, and the construction speed is seriously limited; meanwhile, the combined template has poor adaptability to the construction method of short-section and long-short digging and laying, and is unfavorable for quick construction of organizations.
Disclosure of Invention
The invention provides a device and a method for constructing a suspension necking of a concrete lining of a vertical shaft, wherein a main die and a necking die are connected to form a die set, the main die is of a hinged folding structure, the necking die is of a sliding surface sliding structure, a demoulding mechanism is connected with the necking die, a suspension mechanism is positioned at the upper part of a vertical shaft of the main die, a material distributing mechanism is positioned between the main die and the suspension mechanism, the suspension mechanism releases the main die into a shaft bottom, the main die is lined from top to bottom or lined from bottom to top, or slides and lines, in the lining process, the demoulding mechanism drives the necking die to shrink or expand, the material distributing mechanism uniformly distributes materials, the adaptability is good, a plurality of sets of templates are not needed for short-section and long-section vertical shaft lining, frequent disassembly is not needed, the defect elimination is facilitated, the quality control difficulty is reduced, the construction efficiency is improved, and the operation is simple and convenient.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a vertical shaft concrete lining suspension necking construction device comprises a module, a demoulding mechanism, a distributing mechanism and a suspension mechanism; the die set, the material distributing mechanism and the suspension mechanism are positioned on the same vertical axis, the suspension mechanism is positioned at the upper part of the die set and connected with the die set, the demolding mechanism is connected with the die set, and the material distributing mechanism is positioned between the die set and the suspension mechanism; the demoulding mechanism drives the necking die of the module to shrink or expand.
The module comprises a round cylinder with upper and lower openings, wherein the round cylinder is formed by connecting a main die and a necking die; the main die is formed by hinging two arc plates with each other; the necking die is formed by mutually sliding and matching two reverse slope opening arc plates, and a sliding groove is arranged on the reverse slope opening arc plate positioned on the inner side.
The lower end of the main die is connected with an outward inclined blade foot die, and an inclined chiseling-free template is arranged along the outer side of the blade foot die; the cutting edge foot die is in a conical cylinder structure and is formed by connecting a plurality of inclined cutting edge arc plates.
The edge of the upper end of the main die is provided with a hanging ring; an annular platform is arranged in the upper end of the main die; the main mould is internally provided with a hanging ladder.
The demolding mechanism comprises lug seats connected with two ends of the double-head oil cylinder, the lug seats are connected with two side surfaces of the connecting plate, and one end of the connecting plate is connected with the necking die.
The material distributing mechanism comprises a plurality of movable joint sliding barrels connected with the material distributor, and the movable joint sliding barrels penetrate into the pouring funnel.
The suspension mechanism comprises a plurality of head pulleys connected with the upper end of the derrick, and two ends of a steel cable which bypasses the head pulleys are respectively connected with the windlass and the module.
The mounting method of the vertical shaft concrete lining suspension necking construction device comprises the following steps:
SA1, mounting a main die and a necking die to form a circular cylinder with upper and lower openings;
SA1-1, placing the main die after hinging and combining on a workpiece platform, and mutually expanding two arc plates around a junction point;
SA1-2, placing a necking die on a workpiece platform, and respectively welding two inverted groove arc plates with two arc plate sides of a main die; during welding, the thick wall side of the reverse slope opening arc plate is contacted with the open side of the main die;
SA2, mounting a demoulding mechanism, and connecting the demoulding mechanism with the necking die;
SA2-1, connecting one connecting plate of the demoulding mechanism with the inner cambered surface of one inverted groove arc plate of the necking die;
SA2-2, connecting the other connecting plate of the demoulding mechanism with the sliding surface of the other reverse slope opening arc plate of the necking mould;
SA2-3, respectively placing two ear seats on the upper side surfaces of the connecting plates, enabling the pin shafts to pass through the ear seats and the connecting plates to be matched with each other, and enabling the ear seats to rotate around the pin shafts;
SA2-4, pushing the two arc plates of the main die to mutually rotate around the intersection point, so that the two reverse slope mouth arc plates of the necking die are mutually close, the two arc plates continue to rotate, and the connecting plate positioned on the outer reverse slope mouth arc plate gradually enters the sliding groove on the inner reverse slope mouth arc plate; at the moment, the sliding surfaces of the two reverse slope opening arc plates are in sliding contact with each other, and then the telescopic ends of the double-head oil cylinders are connected with the lug seats; after the installation is completed, the demoulding mechanism is positioned in the main mould;
SA3, checking, namely connecting the double-head oil cylinder with a checking hydraulic pump station;
SA3-1, starting a checking hydraulic station, wherein the double-head oil cylinder pushes two reverse bevel arc plates of the necking die to mutually contact and slide, and the necking die is limited by a hinging point of the main die and mutually close to form necking, and mutually far away from each other to form expanding;
SA3-2, if the center line distance between the two main dies is smaller than the diameter of the main dies after necking and is within a set value range, necking is qualified;
SA3-3, if the center line distance between the two main dies tends to be close to the diameter of the main dies after the opening is expanded, the opening is qualified;
when the height of the module needs to be increased, the stacked multi-layer main dies are connected with each other to form expansion, and when the main dies are stacked, the necking dies and the demoulding mechanism are synchronously increased.
The construction method of the vertical shaft concrete lining suspension necking construction device comprises the following steps:
when the shaft is driven in a short section, the lining is adopted from top to bottom,
SB1, preparing, namely leveling a shaft bottom plate after the shaft is excavated and supported to be high in a lining section, and leveling and correcting; in the step, the vertical hanging scaffold is positioned in a shaft;
SB2, placing a cutting edge die, erecting a suspension mechanism at the upper part of a shaft, and suspending the cutting edge die into the bottom of the shaft by adopting a winch;
SB3, paving a chiseling-free template, and annularly paving the chiseling-free template outside the cutting edge die, wherein the rough surface of the chiseling-free template faces the wall of the well barrel;
SB4, binding a reinforcement cage, binding the reinforcement cage at a lining section in the shaft, wherein the reinforcement cage is an annular reinforcement cage, and a welding end extending downwards is reserved at the lower end of the reinforcement cage;
SB5, installing a module, hanging the module into a shaft by adopting a winch, and connecting the lower end of the main module with the cutting edge die; in the step, a reinforcement cage is positioned in a pouring space between the inner wall of a shaft and the outer wall of a module, and a necking die is in an expanding state;
SB6, installing a suspension ladder and a platform, installing an annular platform at the upper end in the main mould, and suspending the suspension ladder on the inner wall of the main mould;
SB7, a distributing mechanism, wherein a distributor of the distributing mechanism is arranged on a vertical shaft hanging scaffold, and a movable joint chute is pulled to enable a pouring funnel to extend to the upper part of a pouring space;
SB8, pouring, namely conveying the concrete into the distributor, enabling the concrete to enter a pouring funnel along the movable joint chute, and vibrating after entering a pouring space from the pouring funnel; in the step, a plurality of pouring funnels simultaneously and evenly discharge concrete into a pouring space in an equal amount; before the initial setting of the concrete, the module keeps a stable suspension state;
SB9, demoulding, starting a demoulding mechanism, driving a necking die to shrink by a double-head oil cylinder, and separating a main die from poured concrete;
SB10, eliminating the defect, driving the main die to slowly lift by a winch, checking pouring defects on an annular platform or a hanging ladder by an operator, repairing the defects, and curing after initial setting; in the step, in the process of lifting the main die, the cutting edge foot die is separated from the connection with the main die;
SB11, descending lining, excavating the shaft again, descending the cutting edge foot mould, when the shaft excavating support is enough to have a cycle progress or has concrete lining condition, lowering the main mould to the bottom of the shaft by the winch, and driving the necking mould to expand by the double-head oil cylinder; and repeating SB 2-SB 10, and sequentially completing the short-section lining of the vertical shaft.
The construction method of the shaft concrete lining suspension necking construction device comprises the following steps when the short-section tunneling of the shaft is switched to the long-section tunneling of the shaft:
lining from bottom to top when the long section of the vertical shaft is tunneled;
after the shaft excavation supporting is completed, forming a long section lining section; repeating SB2, SB 4-SB 8 to complete the concrete lining of the first silo of the long section of the vertical shaft, and repeating SB9 in time to demould so as to separate the main die from the cutting edge die;
lifting the main mould and the distributing mechanism, supporting and correcting in place, completing the next warehouse, carrying out concrete lining, and completing the long-section lining of the vertical shaft from bottom to top in sequence;
or tunneling the long section of the vertical shaft, and lining from bottom to top;
the lifting mechanism of the lifting frame is connected with the main mould, demoulding is not needed, and the main mould is driven by the lifting mechanism to slide upwards from the bottom of the well to finish the lining of the long section of the vertical shaft continuously from bottom to top.
The beneficial effects of the invention are mainly shown in:
the main mould and the necking mould are connected to form a module, the main mould adopts a hinged structure, the necking mould adopts a sliding surface sliding structure, the demoulding mechanism drives the necking mould to realize necking and expansion, demoulding is carried out during necking, lining is carried out during expansion, adaptability is good, and frequent disassembly and assembly are not needed in the lining process.
The necking die keeps sliding contact all the time in the demolding process, and is limited by the connecting plate, so that the stability in the demolding process is improved.
When the shaft is lined from top to bottom, the cutting edge foot mould is used as a bottom mould, which is favorable for connecting stubbles during layered pouring, and is convenient for overlap joint of reinforcing steel bars and leveling correction.
And a roughening-free template paved outside the cutting edge die forms a rough pouring surface after pouring, and roughening is not needed in the downward lining process, so that the construction precision is improved.
And in the process of ascending or descending of the main mould, the defect inspection and repair are carried out on the concrete which is poured and not initially set, thereby being beneficial to repairing while constructing and improving the pouring quality.
The demoulding mechanism is driven by a double-head oil cylinder, an oil pipe is connected with a hydraulic station by a hose, and the hydraulic station is arranged on a vertical well hanging scaffold outside or in a well, so that the whole weight of a main mould is reduced, and the space is saved.
The movable joint slide barrels are adopted for the pipelines which are communicated with the pouring space by the distributor, and are uniformly distributed to the pouring space, so that the stability in the pouring process is improved, and the main die is prevented from deviating to one side.
When the long section of the vertical shaft is lined from bottom to top, a cutting edge foot die and a chiseling-free die plate are not needed, the lining is layered upwards from the bottom of the shaft, the lining of the long section is gradually completed, and the construction efficiency is further improved.
When the long section of the vertical shaft is lined from bottom to top, the lifting frame can be directly connected with the main die, so that the main die slides upwards from the bottom of the well to line, the long section of the vertical shaft is lined from bottom to top, and the integral casting of the vertical shaft is finished at one time.
Drawings
The invention is further described with reference to the drawings and examples below:
fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic front view of the module of the present invention.
Fig. 3 is a schematic top view of fig. 2.
FIG. 4 is a schematic view of the connection between the necking die and the demolding mechanism.
Fig. 5 is a schematic front view of fig. 4.
FIG. 6 is a schematic view of the connection of the reverse-slope arc plate and the connecting plate outside the necking die.
FIG. 7 is a schematic view of the connection of the reverse-slope arc plate and the connecting plate on the inner side of the necking die.
Fig. 8 is a schematic structural view of the suspension mechanism of the present invention.
Fig. 9 is a state diagram of the top-down lining of the present invention.
Fig. 10 is a top view of the lining of fig. 9.
Fig. 11 is a state diagram of the lining of the present invention from bottom to top using lifting frames.
In the figure: the die set 1, the main die 11, the necking die 12, the cutting edge die 13, the roughening-free die plate 14, the hanging ring 15, the annular platform 16, the hanging ladder 17, the demoulding mechanism 2, the double-head oil cylinder 21, the lug seat 22, the connecting plate 23, the distributing mechanism 3, the distributor 31, the movable joint chute 32, the pouring hopper 33, the hanging mechanism 4, the derrick 41, the crown block 42, the steel cable 43 and the winch 44.
Detailed Description
As shown in fig. 1-11, a vertical shaft concrete lining suspension necking construction device comprises a module 1, a demoulding mechanism 2, a distributing mechanism 3 and a suspension mechanism 4; the die set 1, the material distributing mechanism 3 and the suspension mechanism 4 are positioned on the same vertical axis, the suspension mechanism 4 is positioned at the upper part of the die set 1 and connected with the die set 1, the demolding mechanism 2 is connected with the die set 1, and the material distributing mechanism 3 is positioned between the die set 1 and the suspension mechanism 4; the demoulding mechanism 2 drives the necking die 12 of the module 1 to shrink or expand. When the lining is used, the main mould 11 is lined from top to bottom or lined from bottom to top, or slides, in the lining process, the demoulding mechanism 2 drives the necking mould 12 to shrink or expand, the distributing mechanism 3 distributes materials evenly, the adaptability is good, the short-section and long-section shaft lining does not need a plurality of sets of templates, frequent mounting and dismounting are not needed, the defect elimination is facilitated, the quality control difficulty is reduced, the construction efficiency is improved, and the operation is simple and convenient.
In a preferred scheme, the module 1 comprises a circular cylinder with upper and lower openings, wherein the circular cylinder is formed by connecting a main die 11 and a necking die 12; the main die 11 is formed by hinging two arc plates with each other; the necking die 12 is formed by mutually sliding and matching two reverse slope opening arc plates, and a sliding groove is arranged on the reverse slope opening arc plate positioned on the inner side. When the steel bar casting device is used, the module 1 is positioned in a vertical shaft, a casting space is formed between the outer wall of the main module 11 and a well wall, and a steel bar cage is positioned in the casting space; the main die 11 is formed by hinging two arc plates with each other, and rotates at a hinging point when necking or expanding; when the inner reverse slope arc plate and the outer reverse slope arc plate of the necking die 12 are matched in a sliding way, the sliding groove on the inner reverse slope arc plate is matched with the connecting plate 23 of the demolding mechanism 2 for limiting.
Preferably, the height of the main die 11 determines the height of the necking die 12, and the higher the height is, the more demoulding mechanisms 2 are correspondingly arranged, so that a plurality of connecting plates 23 are matched with a plurality of sliding grooves on the inner reverse-slope arc plate, and the stability and the structural strength during necking and expanding are improved.
In a preferred scheme, the lower end of the main die 11 is connected with an outward inclined blade foot die 13, and an inclined chiseling-free template 14 is arranged along the outer side of the blade foot die 13; the blade foot die 13 is in a conical cylinder structure and is formed by connecting a plurality of inclined cutting edge arc plates. When the construction method is used, the cutting foot die 13 forms stubbles when being lined from top to bottom in a segmented mode, the roughening-free template 14 is used for forming a rough surface at the stubbles, and the poured concrete is not required to be roughened when being lined upwards, so that the construction efficiency is improved.
Preferably, when lining from bottom to top, the blade foot die 13 is used as a bottom die in pouring, and the larger end of the cross section of the conical cylinder body faces downwards.
Preferably, the conical cylinder of the cutting edge foot die 13 is formed by connecting a plurality of cutting edge arc plates by fasteners, and is favorable for disassembly, transportation and recycling after lining from bottom to top is completed.
Preferably, the chiseling-free template 14 is an arc splice plate, the rough surface faces the casting space, and the rough surface is formed on the concrete surface at the joint after casting.
In a preferred scheme, the upper end edge of the main die 11 is provided with a hanging ring 15; an annular platform 16 is arranged in the upper end of the main die 11; a hanging ladder 17 is arranged inside the main mould 11. In use, the lifting ring 15 is connected to the steel cable 43 of the suspension mechanism 4, the annular platform 16 is used for an operator to stand, and an operator operating space is provided for the suspension ladder 17 to climb.
In a preferred scheme, the demolding mechanism 2 comprises lug seats 22 connected with two ends of the double-head oil cylinder 21, the lug seats 22 are connected with two side surfaces of a connecting plate 23, and one end of the connecting plate 23 is connected with the necking die 12. When the device is used, the double-head oil cylinder 21 is connected with a hydraulic station, the hydraulic station is arranged outside or in a vertical shaft, the hydraulic station controls the double-head oil cylinder 21 to start and stop, the double-head oil cylinder 21 drives two reverse slope opening arc plates of the necking die 12 to mutually slide, necking or expanding is realized, and the connecting plate 23 limits the necking die 12.
In a preferred embodiment, the distributor device 3 comprises a plurality of articulated carriages 32 connected to the distributor 31, the articulated carriages 32 being inserted into the casting hopper 33. When the concrete pouring device is used, after concrete is conveyed to the distributor 31, the distributor 31 distributes the concrete uniformly, so that the concrete enters the pouring funnel 33 along the movable joint chute 32, and the pouring funnel 33 is discharged into a pouring space.
Preferably, the distributor 31 is an electrohydraulic three-way distributor, and the three distributing openings are respectively connected with three movable joint slide drums 32, so that concrete slurry is uniformly distributed in a pouring space, and the inclination of the main mould 11 in the pouring process is avoided to reduce lining accuracy.
In a preferred embodiment, the suspension mechanism 4 includes a plurality of head gears 42 connected to the upper end of the derrick 41, and two ends of a wire rope 43 wound around the head gears 42 are respectively connected to a hoist 44 and the module 1. When in use, the derrick 41 is positioned at the wellhead outside the vertical shaft, the steel cable 43 passes through the head sheave 42, the two ends of the steel cable are respectively connected with the windlass 44 and the hanging ring 15 on the main die 11, the windlass 44 winds the steel cable 43 to release the main die 11, and the head sheave 42 synchronously rolls along with the winding of the steel cable 43, so that the lifting resistance is reduced.
In a preferred embodiment, the method for installing the vertical shaft concrete lining suspension necking construction device comprises the following steps:
SA1, mounting a main die and a necking die to form a circular cylinder with upper and lower openings;
SA1-1, placing the hinged combined master mould 11 on a workpiece platform, and mutually expanding two arc plates around a junction point;
SA1-2, placing the necking die 12 on a workpiece platform, and respectively welding two reverse slope mouth arc plates with two arc plate sides of the main die 11; during welding, the thick wall side of the reverse slope opening arc plate is contacted with the opening side of the main die 11;
SA2, mounting a demoulding mechanism, and connecting the demoulding mechanism 2 with the necking die 12;
SA2-1, connecting one connecting plate 23 of the demoulding mechanism 2 with the inner cambered surface of one inverted groove arc plate of the necking die 12;
SA2-2, connecting the other connecting plate 23 of the demoulding mechanism 2 with the sliding surface of the other reverse slope opening arc plate of the necking die 12;
SA2-3, respectively placing two ear seats 22 on the upper side surfaces of the connecting plates 23, enabling the pin shafts to pass through the ear seats 22 and the connecting plates 23 to be matched with each other, and enabling the ear seats 22 to rotate around the pin shafts;
SA2-4, pushing the two arc plates of the main die 11 to mutually rotate around the intersection point, so that the two reverse slope mouth arc plates of the necking die 12 are mutually close, the two arc plates continue to rotate, and the connecting plate 23 positioned on the outer reverse slope mouth arc plate gradually enters the sliding groove on the inner reverse slope mouth arc plate; at this time, the sliding surfaces of the two reverse slope opening arc plates are in sliding contact with each other, and then the telescopic ends of the double-head oil cylinders 21 are connected with the lug seats 22; after the installation is completed, the demoulding mechanism 2 is positioned in the main mould 11;
SA3, checking, namely connecting the double-head oil cylinder 21 with a checking hydraulic pump station;
SA3-1, starting a checking hydraulic station, wherein the double-head oil cylinder 21 pushes two reverse-slope opening arc plates of the necking die 12 to mutually contact and slide, and the necking die 12 is mutually close to form a necking and mutually far away from form an expanding opening under the limitation of a hinging point of the main die 11;
SA3-2, if after necking, the center line distance between the two main dies 11 is smaller than the diameter of the main dies 11 and is within a set value range, necking is qualified;
SA3-3, if the center line distance between the two main dies 11 tends to be close to the diameter of the main die 11 after the opening is expanded, the opening is qualified;
when the height of the die set 1 needs to be increased, the stacked multi-layer main dies 11 are connected with each other to form expansion, and when the main dies 11 are stacked, the necking dies 12 and the demolding mechanism 2 are synchronously increased. The method is favorable for completing assembly test in a factory building, the number is disassembled after inspection, and then the assembly is transferred to a construction site for assembly, so that a large amount of early preparation time is avoided in on-site manufacturing and installation.
In a preferred scheme, the construction method of the vertical shaft concrete lining suspension necking construction device comprises the following steps of:
when the shaft is driven in a short section, the lining is adopted from top to bottom,
SB1, preparing, namely leveling a shaft bottom plate after the shaft is excavated and supported to be high in a lining section, and leveling and correcting; in the step, the vertical hanging scaffold is positioned in a shaft;
SB2, placing a cutting edge die, erecting a suspension mechanism 4 at the upper part of a shaft, and suspending the cutting edge die 13 into the bottom of the shaft by adopting a winch 44;
SB3, paving a roughening-free template, and annularly paving a roughening-free template 14 outside the cutting edge die 13, wherein the rough surface of the roughening-free template 14 faces the wall of the well barrel;
SB4, binding a reinforcement cage, binding the reinforcement cage at a lining section in the shaft, wherein the reinforcement cage is an annular reinforcement cage, and a welding end extending downwards is reserved at the lower end of the reinforcement cage;
SB5, installing a module, hanging the module 1 into a shaft by adopting a winch 44, and connecting the lower end of the main die 11 with the cutting edge die 13; in the step, a reinforcement cage is positioned in a pouring space between the inner wall of a shaft and the outer wall of the module 1, and the necking die 12 is in an expanding state;
SB6, installing a suspension ladder and a platform, installing an annular platform 16 at the upper end in the main mould 11, and suspending a suspension ladder 17 on the inner wall of the main mould 11;
SB7, a distributing mechanism, in which a distributor 31 of the distributing mechanism 3 is arranged on a vertical hanging scaffold, and a movable joint chute 32 is pulled to enable a pouring funnel 33 to extend to the upper part of a pouring space;
SB8, pouring, namely conveying the concrete into a distributor 31, enabling the concrete to enter a pouring funnel 33 along a movable joint chute 32, and vibrating after entering a pouring space from the pouring funnel 33; in this step, a plurality of pouring hoppers 33 simultaneously and uniformly discharge concrete into the pouring space in equal amounts; before the initial setting of the concrete, the module 1 maintains a stable suspended state;
SB9, demoulding, namely starting the demoulding mechanism 2, driving the necking die 12 to shrink by the double-head oil cylinder 21, and separating the main die 11 from the poured concrete;
SB10, eliminating the defect, driving the main die 11 to slowly lift by a winch 44, checking pouring defects on the annular platform 16 or the hanging ladder 17 by an operator, repairing the defects, and curing after initial setting; in this step, the blade foot die 13 is disconnected from the main die 11 during the process of raising the main die 11;
SB11, descending lining, excavating the shaft again, descending the cutting edge foot mould 13, when the shaft excavating support is enough to be a cycle progress or has concrete lining conditions, lowering the main mould 11 to the bottom of the shaft by the winch 44, and driving the necking mould 12 to expand by the double-head oil cylinder 21; and repeating SB 2-SB 10, and sequentially completing the short-section lining of the vertical shaft. The method is beneficial to quickly constructing the short section of the vertical shaft, avoids lining by adopting templates with various specifications, reduces frequent disassembly and installation in the lining process, is beneficial to controlling the construction quality and reduces the cost.
In a preferred scheme, the construction method of the shaft concrete lining suspension necking construction device comprises the following steps when the short-section tunneling of the shaft is switched to the long-section tunneling of the shaft:
lining from bottom to top when the long section of the vertical shaft is tunneled;
after the shaft excavation supporting is completed, forming a long section lining section; repeating SB2, SB 4-SB 8 to complete the lining of the first silo concrete of the long section of the vertical shaft, and repeating SB9 in time to demould so as to separate the main die 11 from the cutting edge die 13;
lifting the main mould 11 and the distributing mechanism 3, supporting and correcting the main mould to be in place, completing the next warehouse, carrying out concrete lining, and completing the long-section lining of the vertical shaft from bottom to top in sequence; the method aims at the long section of the vertical shaft, the lining is layered from bottom to top, the lining except the first bin at the bottom of the shaft needs the cutting edge die 13, and the rest layered positions do not need the cutting edge die 13, so that the lining efficiency is further improved.
Preferably, the construction of the short section and the long section of the vertical shaft from top to bottom is combined, so that the efficiency and the construction quality of the integral vertical shaft lining are improved, and the problem of frequent disassembly and assembly during integral lining of the vertical shaft is solved.
Or tunneling the long section of the vertical shaft, and lining from bottom to top;
the lifting mechanism of the lifting frame is connected with the main mould 11, demoulding is not needed, the main mould 11 is driven by the lifting mechanism to slide upwards from the bottom of the well to finish the long-section lining of the vertical shaft continuously from bottom to top. The method is beneficial to pouring concrete while the main mould 11 slides, lining is completed at one time, the problems of more concrete joints, more parting joints and more steel bar overlap joint are reduced, maintenance is convenient, quality control difficulty is reduced, and lining is quickly constructed.
Preferably, before lifting by adopting the lifting frame, the two connecting plates 23 connected with the necking die 12 are lapped and fixed, the lapping plates are lapped on the upper side and the lower side of the connecting plates 23, the fastener passes through the lapping plates and the connecting plates 23 to be connected and fixed, after the fixing, the main die 11 and the necking die 12 are combined into a cylinder with a stable structure, and the main die 11 does not rotate around a hinging point any more.
Preferably, the front end of the telescopic rod of the lifting mechanism is connected with a supporting frame, the supporting frame is rigidly connected and fixed with the main die 11, the telescopic rod is connected with the distributor 31, and when the lifting mechanism lifts, the main die 11 and the distributor 31 synchronously lift along with the telescopic rod.
Preferably, the support frame is of a hollow frame structure, and the connecting column penetrates through the frame to be rigidly connected with the main die 11; before connection, the hanging ring 15 is detached firstly, and then is connected with a hanging ring connecting hole on the main die 11 through a connecting column.
The foregoing embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict. The protection scope of the invention is defined by the technical proposal of the claims, and the equivalent substitution of technical characteristics in the technical proposal of the claims is taken as the protection scope. I.e., equivalent replacement modifications within the scope of this patent are also within the scope of protection of the present invention.
Claims (3)
1. A method for installing a vertical shaft concrete lining suspension necking construction device is characterized in that,
the vertical shaft concrete lining suspension necking construction device comprises a module (1), a demoulding mechanism (2), a distributing mechanism (3) and a suspension mechanism (4); the die set (1), the material distributing mechanism (3) and the suspension mechanism (4) are positioned on the same vertical axis, the suspension mechanism (4) is positioned at the upper part of the die set (1) and connected with the die set, the demolding mechanism (2) is connected with the die set (1), and the material distributing mechanism (3) is positioned between the die set (1) and the suspension mechanism (4); the demoulding mechanism (2) drives a necking die (12) of the module (1) to shrink or expand;
the module (1) comprises a circular cylinder body with upper and lower openings, wherein the circular cylinder body is formed by connecting a main die (11) and a necking die (12); the main die (11) is formed by hinging two arc plates with each other; the necking die (12) is formed by mutually sliding and matching two reverse slope opening arc plates, and a chute is arranged on the reverse slope opening arc plate positioned on the inner side;
the lower end of the main die (11) is connected with an outward inclined blade foot die (13), and an inclined chiseling-free template (14) is arranged along the outer side of the blade foot die (13); the cutting edge foot die (13) is of a conical barrel structure and is formed by connecting a plurality of inclined cutting edge arc plates;
the edge of the upper end of the main die (11) is provided with a hanging ring (15); an annular platform (16) is arranged in the upper end of the main die (11); a hanging ladder (17) is arranged in the main mould (11);
the demolding mechanism (2) comprises lug bases (22) connected with two ends of the double-head oil cylinder (21), the lug bases (22) are connected with two side surfaces of the connecting plate (23), and one end of the connecting plate (23) is connected with the necking die (12);
the material distributing mechanism (3) comprises a plurality of movable joint slide barrels (32) connected with the material distributor (31), and the movable joint slide barrels (32) are deeply poured into the funnel (33);
the suspension mechanism (4) comprises a plurality of head pulleys (42) connected with the upper end of the derrick (41), and two ends of a steel cable (43) which bypasses the head pulleys (42) are respectively connected with a winch (44) and the module (1);
the method also comprises the following steps:
SA1, mounting a main die and a necking die to form a circular cylinder with upper and lower openings;
SA1-1, placing a main die (11) after hinging and combining on a workpiece platform, and mutually expanding two arc plates around a junction point;
SA1-2, placing a necking die (12) on a workpiece platform, and respectively welding two inverted groove arc plates with two arc plate sides of a main die (11); during welding, the thick wall side of the reverse slope opening arc plate is contacted with the open side of the main die (11);
SA2, mounting a demoulding mechanism, and connecting the demoulding mechanism (2) with the necking die (12);
SA2-1, connecting one connecting plate (23) of the demoulding mechanism (2) with the inner cambered surface of one inverted groove arc plate of the necking die (12);
SA2-2, connecting the other connecting plate (23) of the demoulding mechanism (2) with the sliding surface of the other reverse slope opening arc plate of the necking die (12);
SA2-3, wherein two ear seats (22) are respectively arranged on the upper side surface of the connecting plate (23), a pin shaft penetrates through the ear seats (22) and the connecting plate (23) to be matched with each other, and the ear seats (22) rotate around the pin shaft;
SA2-4, pushing the two arc plates of the main die (11) to mutually rotate around the intersection point, so that the two reverse slope mouth arc plates of the necking die (12) are mutually close, the two arc plates continue to rotate, and the connecting plate (23) positioned on the outer reverse slope mouth arc plate gradually enters the sliding groove on the inner reverse slope mouth arc plate; at the moment, the sliding surfaces of the two reverse slope opening arc plates are in sliding contact with each other, and then the telescopic ends of the double-head oil cylinders (21) are connected with the lug seats (22); after the installation is completed, the demoulding mechanism (2) is positioned in the main mould (11);
SA3, checking, namely connecting the double-head oil cylinder (21) with a checking hydraulic pump station;
SA3-1, starting a checking hydraulic station, wherein a double-head oil cylinder (21) pushes two reverse-slope opening arc plates of a necking die (12) to mutually contact and slide, and the necking die (12) is mutually close to form a necking and mutually far away from each other to form an expanding opening under the limitation of a hinging point of a main die (11);
SA3-2, if the center line distance between the two main dies (11) is smaller than the diameter of the main dies (11) after necking and is within a set value range, necking is qualified;
SA3-3, if the center line distance between the two main dies (11) tends to be close to the diameter of the main die (11) after the opening is expanded, the opening is qualified;
when the height of the die set (1) needs to be increased, the stacked multi-layer main dies (11) are connected with each other to form expansion, and when the main dies (11) are stacked, the necking dies (12) and the demolding mechanism (2) are synchronously increased.
2. A construction method for utilizing a vertical shaft concrete lining to suspend a necking construction device is characterized in that the vertical shaft concrete lining suspending necking construction device comprises a module (1), a demoulding mechanism (2), a distributing mechanism (3) and a suspending mechanism (4); the die set (1), the material distributing mechanism (3) and the suspension mechanism (4) are positioned on the same vertical axis, the suspension mechanism (4) is positioned at the upper part of the die set (1) and connected with the die set, the demolding mechanism (2) is connected with the die set (1), and the material distributing mechanism (3) is positioned between the die set (1) and the suspension mechanism (4); the demoulding mechanism (2) drives a necking die (12) of the module (1) to shrink or expand;
the module (1) comprises a circular cylinder body with upper and lower openings, wherein the circular cylinder body is formed by connecting a main die (11) and a necking die (12); the main die (11) is formed by hinging two arc plates with each other; the necking die (12) is formed by mutually sliding and matching two reverse slope opening arc plates, and a chute is arranged on the reverse slope opening arc plate positioned on the inner side;
the lower end of the main die (11) is connected with an outward inclined blade foot die (13), and an inclined chiseling-free template (14) is arranged along the outer side of the blade foot die (13); the cutting edge foot die (13) is of a conical barrel structure and is formed by connecting a plurality of inclined cutting edge arc plates;
the edge of the upper end of the main die (11) is provided with a hanging ring (15); an annular platform (16) is arranged in the upper end of the main die (11); a hanging ladder (17) is arranged in the main mould (11);
the demolding mechanism (2) comprises lug bases (22) connected with two ends of the double-head oil cylinder (21), the lug bases (22) are connected with two side surfaces of the connecting plate (23), and one end of the connecting plate (23) is connected with the necking die (12);
the material distributing mechanism (3) comprises a plurality of movable joint slide barrels (32) connected with the material distributor (31), and the movable joint slide barrels (32) are deeply poured into the funnel (33);
the suspension mechanism (4) comprises a plurality of head pulleys (42) connected with the upper end of the derrick (41), and two ends of a steel cable (43) which bypasses the head pulleys (42) are respectively connected with a winch (44) and the module (1);
the method also comprises the following steps:
when the shaft is driven in a short section, the lining is adopted from top to bottom,
SB1, preparing, namely leveling a shaft bottom plate after the shaft is excavated and supported to be high in a lining section, and leveling and correcting; in the step, the vertical hanging scaffold is positioned in a shaft;
SB2, placing a cutting edge die, erecting a suspension mechanism (4) at the upper part of a shaft, and suspending the cutting edge die (13) into the bottom of the shaft by adopting a winch (44);
SB3, paving a chiseling-free template, annularly paving a chiseling-free template (14) outside the cutting edge foot die (13), and enabling the rough surface of the chiseling-free template (14) to face the wall of the well barrel;
SB4, binding a reinforcement cage, binding the reinforcement cage at a lining section in the shaft, wherein the reinforcement cage is an annular reinforcement cage, and a welding end extending downwards is reserved at the lower end of the reinforcement cage;
SB5, installing a module, hoisting the module (1) into a shaft by adopting a winch (44), and connecting the lower end of a main die (11) with a cutting edge die (13); in the step, a reinforcement cage is positioned in a pouring space between the inner wall of a shaft and the outer wall of a module (1), and a necking die (12) is in an expanding state;
SB6, installing a suspension ladder and a platform, installing an annular platform (16) at the upper end in the main mould (11), and suspending a suspension ladder (17) on the inner wall of the main mould (11);
SB7, a distributing mechanism, in which a distributor (31) of the distributing mechanism (3) is arranged on a vertical hanging scaffold, and a movable joint chute (32) is pulled to enable a pouring funnel (33) to extend to the upper part of a pouring space;
SB8, pouring, namely conveying the concrete into a distributor (31), enabling the concrete to enter a pouring funnel (33) along a movable joint chute (32), and vibrating after entering a pouring space from the pouring funnel (33); in the step, a plurality of pouring hoppers (33) simultaneously and uniformly discharge concrete into a pouring space in equal quantity; before the initial setting of the concrete, the module (1) keeps a stable suspension state;
SB9, demolding, namely starting the demolding mechanism (2), driving the necking die (12) to shrink by the double-head oil cylinder (21), and separating the main die (11) from the poured concrete;
SB10, eliminating the defect, a winch (44) drives a main die (11) to slowly lift, an operator is positioned on an annular platform (16) or a hanging ladder (17) to check pouring defects and repair the defects, and maintenance is carried out after initial setting; in the step, in the process of lifting the main die (11), the cutting edge foot die (13) is disconnected with the main die (11);
SB11, descending lining, excavating the shaft again, descending the cutting edge foot mould (13) along with the shaft, when the shaft is excavated and supported to be in a circulation progress or have concrete lining conditions, lowering the main mould (11) to the bottom of the shaft by the winch (44), and driving the necking mould (12) to expand by the double-head oil cylinder (21); and repeating SB 2-SB 10, and sequentially completing the short-section lining of the vertical shaft.
3. The construction method using a shaft concrete lining suspension necking construction means according to claim 2, characterized in that when switching from shaft short section driving to shaft long section driving, it comprises the steps of:
lining from bottom to top when the long section of the vertical shaft is tunneled;
after the shaft excavation supporting is completed, forming a long section lining section; repeating SB2 and SB 4-SB 8 to complete the concrete lining of the first silo of the long section of the vertical shaft, and repeating SB9 in time to demould so as to separate the main die (11) from the cutting edge die (13);
lifting the main die (11) and the distributing mechanism (3), supporting, correcting and positioning, completing the next bin, lining concrete, and completing the long-section lining of the vertical shaft from bottom to top in sequence;
or tunneling the long section of the vertical shaft, and lining from bottom to top;
the lifting mechanism of the lifting frame is connected with the main mould (11), demoulding is not needed, and the main mould (11) is driven by the lifting mechanism to slide and line from the bottom of the well upwards, so that the long-section lining of the vertical shaft is continuously completed from bottom to top.
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| CN114607022A (en) * | 2022-03-19 | 2022-06-10 | 临沂市政集团有限公司 | Movable prefabricated inspection shaft construction device |
| CN116480352B (en) * | 2023-06-20 | 2023-09-22 | 中铁五局集团第一工程有限责任公司 | Shaft full-ring lining device and construction method |
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