CN114215335A - Movable construction platform for rock anchor beam of underground factory building - Google Patents
Movable construction platform for rock anchor beam of underground factory building Download PDFInfo
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- CN114215335A CN114215335A CN202111457908.1A CN202111457908A CN114215335A CN 114215335 A CN114215335 A CN 114215335A CN 202111457908 A CN202111457908 A CN 202111457908A CN 114215335 A CN114215335 A CN 114215335A
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- 238000010276 construction Methods 0.000 title claims abstract description 79
- 239000011435 rock Substances 0.000 title claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 128
- 239000010959 steel Substances 0.000 claims abstract description 128
- 239000000725 suspension Substances 0.000 claims abstract description 25
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000009193 crawling Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 18
- 238000009412 basement excavation Methods 0.000 abstract description 17
- 238000009434 installation Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000605 extraction 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
- 238000010422 painting Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G2003/283—Mobile scaffolds; Scaffolds with mobile platforms mobile horizontally
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Abstract
The invention discloses a movable construction platform for rock anchor beams of underground factories, which comprises a first movable track and a steel platform structure; the first moving track is arranged on the rock anchor beam and drives the steel platform structure on the first moving track to move through the electric chain block; the steel platform structure comprises a steel platform main beam arranged on the first moving track, and a grid-shaped steel platform secondary beam is arranged above the steel platform main beam; the system also comprises two tensioning suspension cages which are cantilevered on the left side and the right side of the main beam of the steel platform and a second moving track arranged on the steel platform structure, and a movable ceiling construction platform is also arranged on the second moving track; the anchor cable construction is synchronously carried out by utilizing the mobile platform, the bottom excavation can adopt a construction method of leading a middle pilot tunnel in advance and carrying out staggered excavation on the side walls on the left side and the right side, the traditional single-plane construction is converted into multi-space construction according to the principle of 'plane multi-process, three-dimensional multi-layer, layered excavation and layer-by-layer support', and the limited construction space is fully utilized to the great extent.
Description
Technical Field
The invention relates to the field of construction devices of water conservancy and hydropower engineering plants, in particular to a movable construction platform for rock anchor beams of underground factories.
Background
In a certain extraction and storage power station project in Israel, a factory building is designed to be an underground factory building, the rock condition of the original factory building part is not ideal when the factory cross hole is excavated to 1 km, then the original factory building is rotated and shifted from the design, the region with more geological fracture zones is avoided, and finally the shifted factory building still has a few geological fracture zones which can not be avoided.
At present, under different geological conditions of such projects at home and abroad, the method is generally divided into two methods:
1. in case of normal geological conditions: the general construction processes include excavation and slag discharge, primary concrete spraying, anchor bolt support, secondary lining and the like. The underground factory building area is generally excavated in a blasting mode, layered and block construction is not needed, and the condition that a steel platform is used for high-altitude layered operation does not exist.
2. In case of poor geological conditions: the general construction processes comprise excavation and slag discharge, reinforcing mesh hanging, primary concrete spraying, anchor rod supporting, anchor cable reinforcing construction, secondary lining and the like. The underground plant area generally adopts the mechanical excavation mode to excavate the construction, and the anchor rope construction will be after the excavation finishes, and this regional excavation work of pause, the transportation rig is gone into the field and is carried out drilling construction, and the outward transportation anchor rope is gone into the field and is installed, and transportation slip casting equipment accomplishes the slip casting of anchor section, carries out anchor pier head installation and stretch-draw work after waiting to accomplish by force. During the construction of the whole anchor cable, the next excavation and support work in the area can not be carried out.
Because the straight line construction period of a factory building is short, the anchor cable construction process is complex, the anchor cable construction process comprises drilling, installation, grouting, tensioning and anchor pier head fixing, the overall construction period is long, and excavation and the whole straight line construction period are delayed by more than 2 months. Therefore, an anchor cable construction platform which does not affect the continuous excavation work of machinery below a rock anchor beam layer after the excavation and support of the rock anchor beam layer are finished is needed, so that the aims of layered construction and shortening of the straight line construction period are fulfilled.
Disclosure of Invention
The anchor cable construction method aims to solve the technical problem that in the prior art, anchor cable construction procedures are complex, including drilling, mounting, grouting, tensioning and anchor pier head fixing, and the total construction period is long, so that the anchor cable construction method occupies the following mechanical excavation period.
In order to solve the technical problems, the technical scheme adopted by the invention is to provide a movable construction platform for the rock anchor beam of the underground plant, which comprises a first movable track and a steel platform structure; the first moving track is arranged on the rock anchor beam and drives the steel platform structure on the first moving track to move through the electric chain block;
the steel platform structure comprises a steel platform main beam arranged on the first moving track, the steel platform main beam is a square frame, and bearing pulley blocks are fixed at four corners of the lower surface of the steel platform main beam; a grid-shaped steel platform secondary beam is arranged above the steel platform main beam, and a pattern steel plate and a protective fence are laid on the steel platform secondary beam;
the steel platform main beam tensioning device is characterized by further comprising two tensioning suspension cages which are cantilevered to the left side and the right side of the steel platform main beam, the tensioning suspension cages are located on the same side of the steel platform main beam in the moving direction, and crawling ladders which penetrate through the steel platform structure are arranged in the tensioning suspension cages;
all be fixed with the anchor board of vertical fin form on the rock anchor roof beam at first removal track head and the tail both ends, anchor board bottom is equipped with the mounting panel of horizontal direction to be fixed in on the rock anchor roof beam through mounting panel and fixing bolt, the steel platform structure is connected with the anchor board at both ends respectively through the electronic chain block of first electronic chain block and second.
Particularly, the tensioning suspension cage comprises a cage body and a group of cantilever beams at the top of the cage body, the cantilever beams are arranged between the steel platform main beam and the steel platform secondary beam, and the upper end and the lower end of each cantilever beam are respectively fixedly connected with the steel platform secondary beam and the steel platform main beam.
Furthermore, the cantilever beam structure further comprises a first stiffening plate and a second stiffening plate which are horizontally arranged between the cantilever beams, and a vertical third stiffening plate which is connected with the cantilever beams and the steel platform main beam, wherein the first stiffening plate and the second stiffening plate are fixedly connected with the side wall of the steel platform secondary beam through tensioning plates.
Furthermore, the tensioning suspension cage is divided into an upper layer and a lower layer which are separated by a middle rail; and a transverse pull guardrail is further arranged on the periphery of the tensioning suspension cage, and an operation opening is reserved on one side, close to the rock wall, of the tensioning suspension cage.
Particularly, the device also comprises a stopper, wherein the stopper comprises a U-shaped support covered on the first moving track, the lower surface of the U-shaped support is provided with wing plates extending towards two ends, and the wing plates are detachably connected with the rock anchor beams on the left side and the right side of the first moving track; the movable type bearing pulley block is characterized by further comprising a stop block arranged on the upper surface of the U-shaped support, vertical fixing rods are further arranged on the left side and the right side of the stop block, and the fixing rods are fixed through U-shaped clamps arranged on the end face of the bearing pulley block in a movable state.
Particularly, the device also comprises V-shaped stop plates arranged at the end heads of the two ends of the first moving track, and a plurality of support plates are arranged between the inclined plate and the horizontal plate of each stop plate.
Particularly, the suspended ceiling construction system further comprises a second moving track arranged on the steel platform structure, the second moving track is perpendicular to the first moving track, and a movable suspended ceiling construction platform is further arranged on the second moving track.
Particularly, a transverse tension beam is further arranged inside the steel platform main beam, two ends of the transverse tension beam exceed the steel platform main beam, and a bearing pulley block is additionally arranged below the transverse tension beam.
Compared with the prior art, the invention has the following advantages and beneficial effects:
plane multiple processes, three-dimensional multilayer. The anchor cable construction is synchronously carried out by utilizing the mobile platform, the bottom excavation can adopt a construction method that a middle pilot tunnel is used for first, and side walls on the left side and the right side are excavated at staggered intervals, the traditional single-plane construction is converted into multi-space construction according to the principle of 'plane multi-process, three-dimensional multi-layer, layered excavation and layer-by-layer support', and the limited construction space is fully planned and utilized to a great extent.
Saving the straight construction period. The anchor cable construction is separately stripped from the straight line construction period, bottom mechanical excavation and supporting are not influenced, each anchor cable construction process comprises drilling installation, anchor pier head construction, grouting, tensioning and the like, the later stage can also involve a tension releasing process and secondary repair construction, the whole process construction of a single anchor cable probably needs 3.5 days, the total number of the anchor cables in the whole process of the platform is 26, and the straight line construction period is saved by about 3 months.
Has a space which can be reconstructed and reused. By utilizing the movable rail and the wide operation platform, other operation procedures in the high altitude of a workshop in the later period, such as steel bar prestress tension, tension release, suspended ceiling construction, wall painting and the like, all have operable and improved spaces.
The cost input and the benefit output have high cost performance. The whole steel platform is low in manufacturing cost which is about one thirty-sixth of the price specified by the construction period per month in the construction contract, partial straight construction period is about 2 weeks after the assembly and the disassembly are carried out, the construction period benefit output value saved by the platform investment is about thirty times of the cost, and the economic benefit is large.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic diagram of the relationship between the steel platform structure and the rock anchor beam.
Fig. 3 is a schematic structural view of an embodiment with a tensioned cage.
Fig. 4 is a schematic structural view of the cantilever beam and the steel platform main beam.
FIG. 5 is a schematic diagram of a brake and stopper plate structure.
The explanation of each reference number in the figure is: a rock anchor beam-1; a first moving track-11; an anchor plate-12; a first electric chain block-13; steel platform structure-2; a steel platform main beam-21; a bearing pulley block-22; a transverse tension beam-23; a steel platform secondary beam-24; a patterned steel plate-25; a protective enclosure-26; tensioning a suspension cage-3; a cantilever beam-31; a first stiffener-311; a second stiffener-312; a third stiffener-313; a tension plate-32; an operation port-33; a stopper-4; a U-shaped support-41; a wing-42; a stopper-43; a fixing rod-44; a U-shaped clip-45; a stopper plate-5; a support plate-51; a second moving rail-61; and 7, a ceiling construction platform.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so as to further understand the concept, the technical problems solved, the technical features constituting the technical solutions, and the technical effects brought by the technical solutions.
As shown in fig. 1 and 2, the movable construction platform for the rock anchor beam of the underground plant comprises a first movable track 11 and a steel platform structure 2; the first moving track 11 is arranged on the rock anchor beam 1, and the steel platform structure 2 on the first moving track 11 is driven to move through an electric chain block;
the steel platform structure 2 comprises a steel platform main beam 21 arranged on the first moving track 11, the steel platform main beam 21 is a square frame, and bearing pulley blocks 22 are fixed at four corners of the lower surface of the steel platform main beam 21; a grid-shaped steel platform secondary beam 24 is arranged above the steel platform main beam 21, and a pattern steel plate 25 and a protective fence 26 are laid on the steel platform secondary beam 24;
the steel platform main beam 21 is characterized by further comprising two tensioning suspension cages 3 overhanging the left side and the right side of the steel platform main beam 21, wherein the tensioning suspension cages 3 are positioned on the same side of the steel platform main beam 21 in the moving direction, and crawling ladders penetrating through the steel platform structure 2 are arranged in the tensioning suspension cages 3;
all be fixed with vertical finned anchor plate 12 on the rock anchor roof beam 1 at first movable rail 11 head and the tail both ends, anchor plate 12 bottom is equipped with the mounting panel of horizontal direction to be fixed in on the rock anchor roof beam 1 through mounting panel and fixing bolt, steel platform structure 2 is connected with the anchor plate 12 at both ends respectively through first electronic chain block 13 and the electronic chain block of second.
Installing a first movable rail 11 on the basis of a rock anchor beam 1, installing and erecting a steel platform main beam 21 by using a jack, welding and installing a bearing pulley block 22 at the corner of the lower surface of the steel platform main beam 21, installing a steel platform secondary beam 24 and paving a pattern steel plate 25 after removing the jack, installing protective fences 26 at two sides on the frame of the steel platform secondary beam 24 after the completion, fixing anchoring plates 12 on the rock anchor beam 1 at two ends of the first movable rail 11, respectively connecting the anchoring plates 12 at two ends with a first electric chain hoist 13 and a second electric chain hoist, respectively connecting the first electric chain hoist 13 and the second electric chain hoist with a steel platform structure 2 from two ends by using a steel stranded wire so as to ensure that the platform can move in two directions, after the installation work of the anchor cable is completed by using the first electric chain hoist 13, when the tensioning work and the releasing work are needed, reversely pulling the platform by using the second electric chain hoist at the other end of the rail, at the moment, the platform has the capability of bidirectional movement, and the construction requirement is met. Then set up second removal track 61 on the decorative pattern steel sheet 25 laid, the length direction of second removal track 61 is perpendicular with the length direction of first removal track 11, fixed mode with decorative pattern steel sheet 25 is the same with the fixed mode of first removal track 11, and set up the similar furred ceiling construction platform of structure and steel platform structure 2 on second removal track 61, and utilize the furred ceiling construction platform 7 of lateral shifting on steel platform structure 2 to carry out the furred ceiling construction, carry out the anchor rope installation in the below, the anchor rope is stretched and is put the construction and also can carry out the furred ceiling construction in step and can not lead to the fact the influence to the construction below when also can be put in step, can further shorten the time limit for a project, great economic benefits has.
As a preferred embodiment, the tensioning suspension cage 3 includes a cage body and a set of overhanging beams 31 at the top of the cage body, the overhanging beams 31 are arranged between the steel platform main beam 21 and the steel platform secondary beam 24, and the upper and lower ends of the overhanging beams 31 are respectively fixedly connected with the steel platform secondary beam 24 and the steel platform main beam 21.
As shown in fig. 3 and 4, as a further embodiment, the steel platform structure further includes a first stiffening plate 311 and a second stiffening plate 312 horizontally disposed between the cantilever beams 31, and further includes a vertical third stiffening plate 313 connecting the cantilever beams 31 and the steel platform main beam 21, where the first stiffening plate 311 and the second stiffening plate 312 are fixedly connected to the side wall of the steel platform secondary beam 24 through a tension plate 32.
In this embodiment, the tensioning suspension cage 3 is mainly connected with the steel platform main beam 21 through the cantilever beam 31 of i-steel, and because of the cantilever type suspension cage, the vertical third stiffening plate 313 is additionally welded at the joint of the steel platform main beam 21, one side of the triangular third stiffening plate 313 is connected with the steel platform main beam 21, and the other side is connected with the cantilever beam 31, so that the integral reinforcement effect is achieved, and the safety of the tensioning suspension cage 3 is ensured by matching with the steel platform secondary beam 24 above.
As a further embodiment, the tension cage 3 is divided into an upper layer and a lower layer, and is separated by a middle rail; the periphery of the tensioning suspension cage 3 is also provided with a transverse pulling guardrail, and an operation opening 33 is reserved at one side of the tensioning suspension cage 3 close to the rock wall.
In this embodiment, the whole stress structure of stretch-draw cage 3 comprises the I-steel, fixed suspension in platform one side, stretch-draw cage 3 welds reinforcing bar and reinforcing bar net piece all around and carries out safety protection, main work bearing bottom surface is reinforcing bar and plank structure, stretch-draw cage 3 is two-layer, one side is left the manhole passageway, and the welding steel cat ladder provides upper and lower passageway, when personnel utilize stretch-draw cage 3 to carry out the stretch-draw operation, only utilize operation mouth 33 to carry out the operation near wall body one side, the safety risk of existence is lower.
As shown in fig. 5, as a preferred embodiment, the stopper 4 further comprises a U-shaped brace 41 covering the first moving rail 11, the lower surface of the U-shaped brace 41 is provided with wing plates 42 extending towards two ends, and the wing plates 42 are detachably connected with the rock anchor beam 1 on the left and right sides of the first moving rail 11; the device also comprises a stop block 43 arranged on the upper surface of the U-shaped support 41, vertical fixing rods 44 are arranged on the left side and the right side of the stop block 43, and the fixing rods 44 are fixed through U-shaped clips 45 arranged on the end surface of the bearing pulley block 22 in a moving state.
In this embodiment, the retainer 4 is mainly composed of a U-shaped brace 41 made of a steel plate, a wing plate 42 and a steel bar used as a fixing rod 44 by welding, the fixing rod 44 is fixed by a U-shaped clip 45 on the end surface of the bearing pulley block 22 during traveling, the retainer 4 below is prevented from slipping downwards, the fixing rod 44 is put down when the stopper stops, and is fixed on the rock anchor beam 1 by a fixing bolt on the wing plate 42, at this time, the U-shaped brace 41 just covers the first moving track 11, and the stopper 43 on the U-shaped brace 41 abuts against an outer baffle of the bearing pulley block 22, so that the bearing pulley block 22 can be further prevented from slightly swinging due to disturbance during operation.
As a preferred embodiment, the device further comprises a V-shaped stop plate 5 disposed at the end of each end of the first moving rail 11, and a plurality of support plates 51 are disposed between the inclined plate and the horizontal plate of the stop plate 5.
In this embodiment, the stopper plate 5 serves to prevent the trolley from moving beyond the first moving rail 11 during movement, and serves as a head stop.
As a preferred embodiment, the suspended ceiling construction system further comprises a second moving rail 61 arranged on the steel platform structure 2, the second moving rail 61 is perpendicular to the first moving rail 11, and a movable suspended ceiling construction platform 7 is further arranged on the second moving rail 61.
In this embodiment, in order to further save the construction period, the transverse second movable rail 61 is provided, and the hoisting construction platform 7 capable of transversely moving on the steel platform structure 2 is additionally arranged on the second movable rail 61, so that the synchronous construction of a bottom excavation process, the installation of the anchor cables on the rock anchor beam 1, an anchor cable tensioning and releasing process and a top hoisting process can be realized by using the hoisting construction platform 7, the construction period can be effectively shortened, and the construction progress is further accelerated.
In a preferred embodiment, a cross tie beam 23 is further arranged inside the main steel platform beam 21, two ends of the cross tie beam 23 exceed the main steel platform beam 21, and a bearing pulley block 22 is additionally arranged below the cross tie beam 23.
In this embodiment, the added bearing pulley block 22 can help the bearing pulley block 22 at the corner of the lower surface of the main beam 21 of the steel platform to share the self weight and the upper load of the device, so that the safety factor of the device can be increased.
In the invention, the steel platform main beam 21 is HEB500 section steel, the steel platform secondary beam 24 is IPN 180I-shaped steel, the upper part of the steel platform secondary beam 24 is fully paved with a pattern steel plate to form the whole construction steel platform, and the total area is 224 square meters. HEB500 shaped steel of steel platform girder 21 is every 12M longest, needs the cutting and assembles the connection according to the size, and the connecting plate that uses is two-layer 10mm thickness steel sheet, and even trompil is 16, and aperture 24mm, the bolt of supporting 16M 24 models carries out fixed connection, and the junction of connecting plate and HEB500 shaped steel of steel platform girder 21 adopts the welding. The anchoring plate 12 is a steel plate with the thickness of 10mm, the anchoring plate is fixed by using expansion bolts, the chain block is 500kg in grade, and the pulley end of the movable pulley block is connected with the steel strand.
The first movable rail 11 and the second movable rail 61 are made of UPN180 type steel, two sides of the first movable rail are fixed by angle iron L50 x 50 x 5, the spacing is 3M, the diameter of an opening on the angle iron is 12mm, and the first movable rail and the second movable rail are fixed by an expansion bolt M12 in a matched mode. The first electric chain block 13 and the second electric chain block are both in the 500kg grade, and the bearing pulley block 22 is connected with the first electric chain block 13 and the second electric chain block through steel strands.
The terms "connected" and "fixed" in the description of the present invention may be fixed, formed, welded, or mechanically connected, and the specific meaning of the above terms in the present invention is understood.
In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc. are used in the orientation or positional relationship indicated only for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element referred to must have a particular orientation and therefore should not be construed as limiting the present invention.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; while the invention has been described in detail and with reference to the foregoing embodiments, those skilled in the art will appreciate that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A movable construction platform for underground plant rock anchor beams comprises a first movable track (11) and a steel platform structure (2); the rock anchor beam moving device is characterized in that the first moving track (11) is arranged on the rock anchor beam (1) and drives the steel platform structure (2) on the first moving track (11) to move through an electric chain block;
the steel platform structure (2) comprises a steel platform main beam (21) arranged on the first moving track (11), the steel platform main beam (21) is a square frame, and bearing pulley blocks (22) are fixed at four corners of the lower surface of the steel platform main beam (21); a grid-shaped steel platform secondary beam (24) is arranged above the steel platform main beam (21), and a pattern steel plate (25) and a protective fence (26) are laid on the steel platform secondary beam (24);
the steel platform main beam tensioning device is characterized by further comprising two tensioning suspension cages (3) which are cantilevered to the left side and the right side of the steel platform main beam (21), wherein the tensioning suspension cages (3) are located on the same side of the steel platform main beam (21) in the moving direction, and crawling ladders which penetrate through the steel platform structure (2) are arranged in the tensioning suspension cages (3);
all be fixed with vertical finned anchor board (12) on the rock anchor roof beam (1) at first removal track (11) head and the tail both ends, anchor board (12) bottom is equipped with the mounting panel of horizontal direction to be fixed in on rock anchor roof beam (1) through mounting panel and fixing bolt, steel platform structure (2) are connected with anchor board (12) at both ends respectively through first electronic chain block (13) and the electronic chain block of second.
2. The movable construction platform for the rock anchor beam of the underground plant room as claimed in claim 1, wherein the tensioning suspension cage (3) comprises a cage body and a set of cantilever beams (31) at the top of the cage body, the cantilever beams (31) are arranged between the main steel platform beam (21) and the secondary steel platform beam (24), and the upper end and the lower end of the cantilever beams (31) are respectively fixedly connected with the secondary steel platform beam (24) and the main steel platform beam (21).
3. The movable construction platform for the rock anchor beam of the underground factory building as claimed in claim 2, further comprising a first stiffening plate (311) and a second stiffening plate (312) horizontally arranged between the cantilever beams (31), and further comprising a vertical third stiffening plate (313) connecting the cantilever beams (31) and the steel platform main beam (21), wherein the first stiffening plate (311) and the second stiffening plate (312) are fixedly connected with the side wall of the steel platform secondary beam (24) through a tension plate (32).
4. The movable construction platform for rock anchor beams of underground factories according to claim 2, characterized in that the tension cage (3) is divided into an upper layer and a lower layer, which are separated by a middle rail; the periphery of the tensioning suspension cage (3) is also provided with a transverse pulling guardrail, and one side of the tensioning suspension cage (3) close to the rock wall is provided with an operation opening (33).
5. The movable construction platform for rock anchor beams of underground factories according to claim 1, characterized by further comprising a stopper (4), wherein the stopper (4) comprises a U-shaped brace (41) covered on the first moving track (11), the lower surface of the U-shaped brace (41) is provided with wing plates (42) extending towards two ends, and the wing plates (42) are detachably connected with the rock anchor beams (1) at the left and right sides of the first moving track (11); the device is characterized by further comprising a stop block (43) arranged on the upper surface of the U-shaped support (41), wherein vertical fixing rods (44) are further arranged on the left side and the right side of the stop block (43), and the fixing rods (44) are fixed through U-shaped clamps (45) arranged on the end surface of the bearing pulley block (22) in a moving state.
6. The movable construction platform for rock anchor beams for underground factories according to claim 1, which further comprises V-shaped stop plates (5) arranged at the ends of both ends of the first moving track (11), wherein a plurality of support plates (51) are arranged between the inclined plates and the horizontal plates of the stop plates (5).
7. A movable construction platform for rock anchor beams of underground factories according to claim 1, characterized by further comprising a second moving track (61) arranged on the steel platform structure (2), wherein the second moving track (61) is perpendicular to the first moving track (11), and a movable ceiling construction platform (7) is arranged on the second moving track (61).
8. The movable construction platform for the rock-anchored beam of the underground factory building as claimed in claim 1, wherein the steel platform main beam (21) is further provided with a cross-bracing beam (23) inside, the two ends of the cross-bracing beam (23) exceed the steel platform main beam (21), and a bearing pulley block (22) is additionally arranged below the cross-bracing beam (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111457908.1A CN114215335A (en) | 2021-12-02 | 2021-12-02 | Movable construction platform for rock anchor beam of underground factory building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111457908.1A CN114215335A (en) | 2021-12-02 | 2021-12-02 | Movable construction platform for rock anchor beam of underground factory building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114215335A true CN114215335A (en) | 2022-03-22 |
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| CN202111457908.1A Pending CN114215335A (en) | 2021-12-02 | 2021-12-02 | Movable construction platform for rock anchor beam of underground factory building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115198711A (en) * | 2022-07-06 | 2022-10-18 | 中国建筑第八工程局有限公司 | Construction platform structure and construction method of concrete cast-in-place pile for Yangjiang river |
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