CN117328386A - High side slope stake sheet wall supporting construction - Google Patents
High side slope stake sheet wall supporting construction Download PDFInfo
- Publication number
- CN117328386A CN117328386A CN202311287294.6A CN202311287294A CN117328386A CN 117328386 A CN117328386 A CN 117328386A CN 202311287294 A CN202311287294 A CN 202311287294A CN 117328386 A CN117328386 A CN 117328386A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- block
- rotating
- wall supporting
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 25
- 239000002689 soil Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
- E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to the related technical field of road construction and discloses a high-side pile plate wall supporting structure which comprises a base, wherein two groups of symmetrically arranged rotating supporting arms are rotationally connected to two sides of the base, a first mounting seat is fixedly connected to the rotating supporting arms, a second mounting seat is fixedly connected between the first mounting seats, a fixed shaft is fixedly connected between the second mounting seats, a pulley is rotationally connected to the fixed shaft, a steel cable is arranged on the pulley, one end of a group of hinging blocks is rotationally connected to the base.
Description
Technical Field
The invention relates to the technical field related to road construction, in particular to a high-slope pile plate wall supporting structure.
Background
In the house construction process, due to regional topography, the project to be built is often located under the mountain foot, so that supporting structures such as a lattice Liang Jia anchor cable, an anti-slide pile, a retaining plate and the like are adopted for the high slope project. And for the anti-slide pile and soil retaining plate supporting structure, reverse construction is mostly adopted, the anti-slide pile is firstly constructed, then earth excavation is carried out, and the soil retaining plate is constructed step by step.
At present, a steel pipe scaffold is erected for reinforcing a single-side template of a retaining plate, and then the template is reinforced by a method of 'ground anchor' reinforcing or reinforcing a split screw by welding on a pile foundation main rib, etc., but because the gradient of a high slope is steeper in the construction process, soil and stones of the slope can slide down to the bottom of the slope under the action of gravity, the existing protection mechanism only protects through a simple concrete supporting structure, the damage of a protection plate used by the supporting structure is easy to cause, the potential safety hazard is large, the service life is lower, and the existing use requirement cannot be met.
Disclosure of Invention
The invention aims to provide a high-slope pile plate wall supporting structure so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a high slope stake board wall supporting construction, includes the base, and the base both sides rotate the rotating turret that is connected with two sets of symmetries and set up, fixedly connected with second mount pad on the rotating turret, fixedly connected with fixed axle between the second mount pad, rotate on the fixed axle and be connected with the pulley, be connected with the foot supporting component that is used for carrying out the support to the rotating turret on the rotating turret, it is connected with a hinge block group to rotate on the base, and the top of hinge block group rotates and is connected with the connecting seat, wherein hinge block group includes a plurality of articulated blocks that end to end, the one end of connecting seat connection steel cable, the other end of steel cable is walked around be connected with buffer assembly behind the pulley, buffer assembly sets firmly at base or ground, hinge block both sides fixedly connected with fixed plate, fixedly connected with fixed plate keep away from on the one end of hinge block, fixedly connected with telescopic link on one side fixedly connected with first dead lever of hinge block, fixedly connected with telescopic link on the telescopic link, install the connecting block is connected with connecting seat, and is connected with the drive nut on the first side of the fixed connection bolt, the other end is connected with the drive screw bolt.
As a further scheme of the invention: the base is fixedly connected with a first installation cylinder, and a first locating pin is connected in a sliding manner in the first installation cylinder.
As a further scheme of the invention: the foot supporting component comprises a rotating supporting arm with one end rotatably connected to the rotating frame, a first mounting seat is rotatably connected to the other end of the rotating supporting arm, a second mounting cylinder is arranged in the first mounting seat, and a second positioning pin is slidably connected to the second mounting cylinder.
As a further scheme of the invention: the driving assembly comprises a screw rod rotatably connected between the hinging block and the fixing block, and the screw rod is in threaded connection with the driving block.
As a further scheme of the invention: the hinge is characterized in that a mounting groove is formed in the hinge block, a driving rod is connected in the mounting groove in a rotating mode, a second bevel gear is fixedly connected to the driving rod, one end of the screw rod penetrates through the hinge block and is fixedly connected with a first bevel gear arranged in the mounting groove, and the first bevel gear is meshed with the second bevel gear.
As a further scheme of the invention: and the driving rod is fixedly connected with a screw head.
As a further scheme of the invention: the buffer component comprises a rotating seat which is rotationally connected to the base, a third fixing rod is fixedly connected to the rotating seat, a stop block is fixedly connected to the top of the third fixing rod, a sliding block is connected to the third fixing rod in a sliding mode, and a second spring sleeved on the third fixing rod is arranged between the sliding block and the stop block.
As a further scheme of the invention: the sliding block is fixedly connected with a lifting seat, and the other end of the steel cable is fixedly connected with the lifting seat.
As still further aspects of the invention: the rotating seat is fixedly connected with a third mounting cylinder, and a third locating pin is connected to the third mounting cylinder in a sliding mode.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, firstly, the protection plate is contracted and raised, then the impact force of soil and stones is primarily buffered through the raised protection plate, then the impact potential energy of the soil and stones is converted into the traction force of the steel cable through the pulley and the steel cable, and then the impact force of the steel cable is buffered and damped through the buffer component, so that the damage of the impact of the soil and stones to the invention is reduced, and the service life of the invention is prolonged.
Drawings
Fig. 1 is a schematic structural view of a high-slope pile-sheet wall supporting structure according to the present invention.
Fig. 2 is an isometric view of a high-slope sheet pile wall support structure in accordance with the present invention.
Fig. 3 is a schematic structural view of a protection plate in a high-slope pile-slab wall supporting structure according to the present invention.
Fig. 4 is a view showing the installation effect of the protection plate in the high-slope pile plate wall supporting structure according to the present invention.
Fig. 5 is a cross-sectional view of a high-slope sheet pile wall supporting structure according to the present invention.
In the figure: 1-base, 2-rotating frame, 3-first mounting cylinder, 4-first locating pin, 5-rotating support arm, 6-first mounting seat, 7-second mounting cylinder, 8-second locating pin, 9-hinge block, 10-fixed plate, 11-fixed block, 12-first fixed rod, 13-telescoping cylinder, 14-telescoping plate, 15-mounting block, 16-mounting bolt, 17-guard plate, 18-mounting nut, 19-second fixed rod, 20-driving block, 21-connecting frame, 22-first spring, 23-screw, 24-mounting groove, 25-first bevel gear, 26-driving rod, 27-second bevel gear, 28-screw head, 29-second mounting seat, 30-fixed shaft, 31-pulley, 32-steel cable, 33-connecting seat, 34-rotating seat, 35-third fixed rod, 36-stopper, 37-second spring, 38-elevating seat, 39-third mounting cylinder, 40-third locating pin, 41-sliding block, 42-driving component, 43-supporting component, 44-buffering component.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art without making any inventive effort, based on the embodiments of the present invention fall within the scope of the present invention, and the present invention will be described in detail below with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 5, in an embodiment of the present invention, a high-slope pile wall supporting structure includes a base 1, two sets of symmetrically disposed rotating frames 2 are rotatably connected at two sides of the base 1, a second mounting seat 29 is fixedly connected to the rotating frames 2, a fixed shaft 30 is fixedly connected between the second mounting seats 29, a pulley 31 is rotatably connected to the fixed shaft 30, a foot supporting component 43 for supporting the rotating frames 2 is connected to the rotating frames 2, a hinge block set is rotatably connected to the base 1, a connecting seat 33 is rotatably connected to the top end of the hinge block set, wherein the hinge block set includes a plurality of hinge blocks 9 rotatably connected end to end, the connecting seat 33 is connected to one end of a steel cable 32, a buffer component 44 is connected to the other end of the steel cable 32 after bypassing the pulley 31, the buffer component 44 is fixedly arranged on the base or the ground, a fixing plate 10 is fixedly connected to two sides of the hinge block 9, the fixing plate 10 is fixedly connected with the fixing block 11 at one end far away from the hinging block 9, the fixing block 11 is fixedly connected with the first fixing rod 12 at one side far away from the hinging block 9, the telescopic cylinder 13 is connected with the telescopic plate 14 in a sliding way, the telescopic plate 14 is fixedly connected with the mounting block 15, the mounting block 15 is connected with the mounting bolt 16 in a sliding way, one end of the mounting bolt 16 is fixedly connected with the protection plate 17, the other end of the mounting bolt 16 is connected with the mounting nut 18 in a threaded way, the second fixing rod 19 is fixedly connected with the driving block 20 in a sliding way, the telescopic plate 14 is fixedly connected with the connecting frame 21, the first spring 22 is fixedly connected between the connecting frame 21 and the driving block 20, the driving block 20 is connected with the driving component 42 for driving the driving block 20, the invention inserts the first locating pin 4 into the ground, and then installs and fixes the base 1 through the sliding connection of the first installing cylinder 3 and the first locating pin 4, then supports and fixes the rotating frame 2 through the foot supporting component 43, and then adjusts the installation angle of the rotating frame 2 through the foot supporting component 43, then inserts the installation bolt 16 into the installation block 15, then installs and fixes the protection plate 17 on the installation block 15 through the threaded connection of the installation nut 18 and the installation bolt 16, and then drives the driving block 20 to move through the driving component 42 after the installation, the first spring 22 stretches the expansion plate 14 to move to the fixing plate 10 through the connecting frame 21, and then pushes the expansion plate 17 to the expansion plate 17 through the elastic force, and then pushes the expansion plate 17 to a bump plate 17 through the elastic force, and then the bump plate 17 is pushed to the bump plate 17 through the elastic force after the bump plate 17 is pushed to the bump plate 17, and the bump plate 17 is placed on the bump plate 17 through the elastic force after the bump plate is pushed to the bump plate 17, the rest impact force directly acts on the hinging block 9 along the protection plate 17, at this moment, the hinges formed by the hinging blocks 9 are C-shaped to concave under the action of the impact force, at this moment, because the lengths of the hinging blocks 9 are unchanged, the top of the hinging block 9 descends under the action of the impact force, at this moment, the hinging block 9 drives the connecting seat 33 to descend, the connecting seat 33 pulls the steel cable 32, so that the rest impact force is transmitted to the steel cable 32, and the rest impact force is secondarily buffered through the arrangement of the buffer component 44.
In one case of this embodiment, referring to fig. 1 to 5, the foot supporting component 43 includes a rotating support arm 5 with one end rotatably connected to the rotating frame 2, a first mounting seat 6 rotatably connected to the other end of the rotating support arm 5, a second mounting cylinder 7 disposed in the first mounting seat 6, and a second positioning pin 8 slidably connected to the second mounting cylinder 7, where the foot supporting component 43 first inserts the second positioning pin 8 into the ground, and then installs and fixes the first mounting seat 6 through the sliding connection between the second mounting cylinder 7 and the second positioning pin 8, and then installs and fixes one end of the rotating support arm 5, and then supports and fixes the rotating frame 2 through the rotating support arm 5.
In one case of this embodiment, referring to fig. 1 to 5, the driving assembly 42 includes a screw 23 rotatably connected between the hinge block 9 and the fixed block 11, the screw 23 is in threaded connection with the driving block 20, a mounting groove 24 is provided in the hinge block 9, a driving rod 26 is rotatably connected in the mounting groove 24, a second bevel gear 27 is fixedly connected to the driving rod 26, one end of the screw 23 passes through the hinge block 9 and is fixedly connected with a first bevel gear 25 provided in the mounting groove 24, the first bevel gear 25 is meshed with the second bevel gear 27, a screw head 28 is fixedly connected to the driving rod 26, the driving assembly 42 can insert a wrench into the screw head 28 and rotate the screw head 28 by screwing the screw wrench, the screw head 28 drives the driving rod 26 to rotate, the second bevel gear 27 is rotated by the first bevel gear 25, and the screw 23 is moved by the screw head 20 being connected with the driving block 20.
In one case of this embodiment, referring to fig. 1 to 5, the buffer assembly 44 includes a rotating seat 34 rotatably connected to the base 1, a third fixing rod 35 is fixedly connected to the rotating seat 34, a stop 36 is fixedly connected to the top of the third fixing rod 35, a sliding block 41 is slidably connected to the third fixing rod 35, a second spring 37 sleeved on the third fixing rod 35 is disposed between the sliding block 41 and the stop 36, a lifting seat 38 is fixedly connected to the sliding block 41, the other end of the steel cable 32 is fixedly connected to the lifting seat 38, a third mounting cylinder 39 is fixedly connected to the rotating seat 34, a third positioning pin 40 is slidably connected to the third mounting cylinder 39, and the buffer assembly 44 firstly inserts the third positioning pin 40 into the ground, so that the rotating seat 34 is fixedly mounted through the sliding connection of the third positioning pin 40 and the third mounting cylinder 39, then when the impact force is transmitted to the steel cable 32, the steel cable 32 drives the lifting seat 38, and in the lifting seat 38 drives the sliding block 41 to lift the second spring 37, thereby compressing the second spring 37.
The working principle of the invention is as follows: the invention firstly inserts the first locating pin 4 into the ground, then installs and fixes the base 1 through the sliding connection of the first installation cylinder 3 and the first locating pin 4, then inserts the second locating pin 8 into the ground, then installs and fixes the first installation seat 6 through the sliding connection of the second installation cylinder 7 and the second locating pin 8, then installs and fixes one end of the rotary supporting arm 5, further carries out supporting and fixing on the rotary frame 2 through the rotary supporting arm 5, further can carry out adaptive adjustment on the installation angle of the rotary frame 2 through the adjustment of the installation position of the first installation seat 6, then inserts the installation bolt 16 into the installation block 15, then carries out threaded connection with the installation bolt 16 through the installation nut 18, installs and fixes the protection plate 17 on the installation block 15, inserts the spanner into the screw head 28 after the installation is completed, the screw head 28 is driven to rotate by a screwing wrench, the screw head 28 drives the driving rod 26 to rotate, the driving rod 26 drives the second bevel gear 27 to rotate, the second bevel gear 27 drives the first bevel gear 25 to rotate by being meshed with the first bevel gear 25, the first bevel gear 25 drives the screw rod 23 to rotate, the screw rod 23 drives the driving block 20 to move by being connected with the screw thread of the driving block 20, the driving block 20 drives the first spring 22 to stretch, the first spring 22 drives the expansion plate 14 to move towards the direction of the fixed plate 10 through the connecting frame 21, the expansion plate 14 drives the protection plate 17 to shrink, and then the protection plate 17 generates elastic bulge at the middle position, then when falling rocks impact on the protection plate 17, firstly, the falling rocks are accepted through the bulge on the protection plate 17, at the moment, the impact force acts on the bulge to push the bulge towards the direction of the hinge block 9, at this time, the impact force is firstly transferred to the expansion plate 14 through the protection plate 17, the expansion plate 14 acts on the first spring 22, then the impact force on the protection plate 17 is buffered once through the arrangement of the first spring 22, then after the bump is smoothed under the impact force of falling rocks, the rest impact force directly acts on the hinging block 9 along the protection plate 17, at this time, the hinges formed by the multiple groups of hinging blocks 9 are concave in a C shape under the impact force, at this time, because the lengths of the multiple groups of hinging blocks 9 are unchanged, at this time, the top of the hinging block 9 descends under the impact force, at this time, the hinging block 9 drives the connecting seat 33 to descend, the connecting seat 33 pulls the steel cable 32, so that the rest impact force is transferred to the steel cable 32, the steel cable 32 drives the lifting seat 38 to lift, and in the lifting seat 38 drives the sliding block 41 to lift, the sliding block 41 compresses the second spring 37, and then the impact force on the steel cable 32 is transferred to the second spring 37 to buffer the impact force through the second spring 37.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. The utility model provides a high side stake board wall supporting construction, includes the base, its characterized in that, the base both sides rotate and are connected with the rotating turret that two sets of symmetries set up, fixedly connected with second mount pad on the rotating turret, fixedly connected with fixed axle between the second mount pad, rotate on the fixed axle and be connected with the pulley, be connected with the foot supporting component that is used for supporting the rotating turret on the rotating turret, rotate on the base and be connected with a hinge block group, the top of hinge block group rotates and is connected with the connecting seat, wherein hinge block group includes a plurality of articulated blocks that end to end rotates to link to each other, the one end of connecting seat connection cable, the other end of cable is walked around be connected with buffer assembly behind the pulley, buffer assembly sets firmly in base or ground, hinge block both sides fixedly connected with fixed plate, fixedly connected with fixed block is kept away from on the one end of hinge block, and is kept away from the first dead lever of hinge block, and is connected with the telescopic cylinder on the first dead lever, fixedly connected with expansion plate on the telescopic cylinder, fixedly connected with installation piece on the telescopic cylinder, the fixed connection has the installation piece, installation piece is connected with the connecting bolt, installs the drive piece on the first side of the fixed connection, the drive piece is connected with the other end, and is connected with the fixed nut.
2. The high-slope pile plate wall supporting structure according to claim 1, wherein the base is fixedly connected with a first mounting cylinder, and a first positioning pin is slidably connected to the first mounting cylinder.
3. The high-slope pile-sheet wall supporting structure according to claim 1, wherein the foot supporting assembly comprises a rotating supporting arm with one end rotatably connected to the rotating frame, a first mounting seat is rotatably connected to the other end of the rotating supporting arm, a second mounting cylinder is arranged in the first mounting seat, and a second positioning pin is slidably connected to the second mounting cylinder.
4. A high slope sheet pile wall supporting structure according to claim 1, wherein the drive assembly comprises a screw rotatably connected between the hinge block and the fixed block, the screw being threadedly connected to the drive block.
5. The high-slope pile plate wall supporting structure according to claim 4, wherein a mounting groove is formed in the hinging block, a driving rod is connected in the mounting groove in a rotating mode, a second bevel gear is fixedly connected to the driving rod, one end of the screw rod penetrates through the hinging block and is fixedly connected with a first bevel gear arranged in the mounting groove, and the first bevel gear is meshed with the second bevel gear.
6. The high-slope sheet pile wall supporting structure according to claim 5, wherein the driving rod is fixedly connected with a screw head.
7. The high-slope pile board wall supporting structure according to claim 1, wherein the buffer assembly comprises a rotating seat rotatably connected to the base, a third fixing rod is fixedly connected to the rotating seat, a stop block is fixedly connected to the top of the third fixing rod, a sliding block is slidably connected to the third fixing rod, and a second spring sleeved on the third fixing rod is arranged between the sliding block and the stop block.
8. The high-slope pile-sheet wall supporting structure according to claim 7, wherein the sliding block is fixedly connected with a lifting seat, and the other end of the steel cable is fixedly connected with the lifting seat.
9. The high-slope pile plate wall supporting structure according to claim 8, wherein a third mounting cylinder is fixedly connected to the rotating base, and a third positioning pin is slidably connected to the third mounting cylinder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311287294.6A CN117328386A (en) | 2023-10-08 | 2023-10-08 | High side slope stake sheet wall supporting construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311287294.6A CN117328386A (en) | 2023-10-08 | 2023-10-08 | High side slope stake sheet wall supporting construction |
Publications (1)
Publication Number | Publication Date |
---|---|
CN117328386A true CN117328386A (en) | 2024-01-02 |
Family
ID=89294813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202311287294.6A Pending CN117328386A (en) | 2023-10-08 | 2023-10-08 | High side slope stake sheet wall supporting construction |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN117328386A (en) |
-
2023
- 2023-10-08 CN CN202311287294.6A patent/CN117328386A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2011146773A2 (en) | Folding tower | |
CN111472789B (en) | Pipe jacking construction process | |
CN214532784U (en) | Lifting anchoring slope protection drilling machine | |
CN117328386A (en) | High side slope stake sheet wall supporting construction | |
CN216130135U (en) | Inner supporting structure for foundation pit | |
CN218265063U (en) | Prefabricated assembled structure of building civil engineering construction | |
CN215252954U (en) | Side slope supporting device for foundation engineering construction | |
CN114775655A (en) | Highway slope anchoring and reinforcing device | |
CN111596265B (en) | Method for field construction of target indication radar | |
CN112900890A (en) | Adjusting device and adjusting method for assembling truss structure | |
CN113585261A (en) | Vibratory pile hammer integrating feeding, overturning, clamping and pile sinking | |
CA2975608C (en) | Non-beam pumping unit driven by a biaxial motor | |
CN112459061A (en) | Pile structure and equipment are buried underground to ground stake for bridge construction | |
CN220394564U (en) | Repeated utilization's foundation ditch supporting mechanism | |
CN111396076A (en) | Pipe jacking construction equipment | |
CN213143937U (en) | House wall reinforcing apparatus | |
CN201221373Y (en) | Beam lifting apparatus for coal mine laneway hydraulic support | |
CN115949183B (en) | Bearing beam structure is built in room | |
CN219472122U (en) | Tunnel portal steel frame with secondary lining applied later | |
CN216043792U (en) | Arc-shaped stop lever bracket for roof-cutting pressure relief gob-side entry retaining | |
CN220768094U (en) | Novel multifunctional steel support hanging plate | |
CN221100015U (en) | Bridge stress bearing detection device | |
CN220469058U (en) | Prevent rainwater inspection shaft of sinking | |
CN218972002U (en) | Support frame for pipeline installation | |
CN220909224U (en) | Building structure reinforcing assembly |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |