CN218233435U - Drainage well based on corrugated steel structure - Google Patents
Drainage well based on corrugated steel structure Download PDFInfo
- Publication number
- CN218233435U CN218233435U CN202222348055.4U CN202222348055U CN218233435U CN 218233435 U CN218233435 U CN 218233435U CN 202222348055 U CN202222348055 U CN 202222348055U CN 218233435 U CN218233435 U CN 218233435U
- Authority
- CN
- China
- Prior art keywords
- corrugated steel
- derrick
- along
- arch bar
- drainage
- 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.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a drainage well based on ripple steel construction. Including concrete well seat and derrick, the top in concrete well seat is located along vertical the laying to the derrick, the derrick includes stand and collar tie beam, the stand is fixed to be located on the concrete well seat and the protrusion is laid in the top surface of concrete well seat, a plurality of stands are arranged along circumference interval, the collar tie beam encircle the stand set up and with stand fixed connection, still including being annular arch bar subassembly, the arch bar subassembly encircle the derrick setting and with derrick fixed connection along circumference, the arch bar subassembly is the corrugated structure along the axial. The utility model discloses set up the arch bar subassembly of ripple construction, increase the bending resistance moment of inertia of arch bar subassembly with the ripple for the drainage shaft has higher bearing capacity and stability, through connecting into whole with arch bar subassembly and derrick, thereby has strengthened the influence of resisting external force by a wide margin, makes the drainage shaft can adapt to various complicated flow states, and the on-the-spot installation construction is simple, and overall structure factor of safety is high.
Description
Technical Field
The utility model relates to a tail storehouse drainage technology field especially relates to a pumping shaft based on ripple steel construction.
Background
In a general wet-type stockpiled tailing pond, a flood discharge system is used as an indispensable facility, and whether the type is reasonable and the structure is reliable directly relates to the flood discharge prevention and safety of the tailing pond. Conventional flood drainage systems include drainage well-tunnels, drainage well-drains, chutes-tunnels, chutes-drains, etc., wherein the drainage well-tunnels are widely used in various types, can be adapted to various complex topographic conditions, and have relatively strong drainage capability. The drainage well structure type comprises a well ring type, a window type, a frame type, building blocks and the like, the frame type drainage well is convenient to construct, stable in structure and strong in water inlet capacity, and a common medium-large tailing pond adopts the frame type drainage well.
The frame-type drainage well is of a reinforced concrete structure and consists of a derrick, a well seat and an arch bar. The derrick part comprises upright columns and ring beams which form a circular frame type structure. The well seat part is made of reinforced concrete and is used for supporting the upper derrick and connecting the lower vertical shaft. The arch bar is prefabricated reinforced concrete structure, along with the gradual lifting of well water inlet elevation, the arch bar superposes step by step. Gaps between the arch plates and the headframes are generally filled by 'geotechnical cloth + cement'.
However, the conventional frame-type drainage well derrick is cast in situ, and the arch bar is prefabricated in situ, so that a series of problems of bar lack, insufficient thickness of a protective layer, non-compact vibration and the like exist, and safety and environmental protection accidents caused by the quality problems of the derrick or the arch bar are easy to occur. The arch bar is once only made, installation step by step in the later stage operation process, and the preparation is longer to installation interval time, and the great reality of the stack field management degree of difficulty can appear crack, integrality relatively poor scheduling problem. Under special operating conditions, such as earthquakes, extra flood or other abnormal operating states, the arch bar may be subjected to vibration load or tension, so that the arch bar is loosened or separated, the normal use of the drainage well is further influenced, and even the drainage well is directly collapsed.
In view of the above, it is necessary to provide a drainage well based on corrugated steel structure to solve the above drawbacks.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a drainage shaft based on ripple steel construction aims at solving the current weak problem of drainage shaft arch bar bearing capacity.
In order to realize the above-mentioned purpose, the utility model provides a drainage well based on ripple steel construction, including concrete well seat and derrick, the derrick is along vertical laying in the top of concrete well seat, the derrick includes stand and collar tie beam, the stand is fixed to be located on the concrete well seat and the protrusion in the top surface of concrete well seat is laid, and is a plurality of the stand is arranged along the circumference interval, the collar tie beam encircles the stand sets up and with stand fixed connection, still including being annular arch bar subassembly, the arch bar subassembly encircles along circumference the derrick sets up and with derrick fixed connection, the arch bar subassembly is the corrugate structure along the axial.
Preferably, the arch bar subassembly includes a plurality of corrugated steel plate along circumference concatenation, corrugated steel plate is the arc setting along circumference, corrugated steel plate is the corrugate setting along the axial, corrugated steel plate inwards is horizontal bending type along axial both ends and forms the connecting plate, be equipped with the mounting hole of laying along circumference on the connecting plate, along axially adjacent two corrugated steel plate through first fastener with the mounting hole cooperation is connected, corrugated steel plate has seted up the connecting hole along two tip of circumference, along two of circumference assembling corrugated steel plate through first fastener with the connecting hole cooperation is connected.
Preferably, the corrugated steel plate is provided with a water discharge port in the middle for discharging water.
Preferably, each corrugated steel plate is provided with two water discharge ports, and the cross section of each water discharge port is rectangular.
Preferably, the bottom of the arch bar assembly is partially embedded in and fixedly connected to the concrete well base.
Preferably, a sealing gasket is arranged between two axially adjacent corrugated steel plates.
Preferably, two axially adjacent corrugated steel plates are arranged in a circumferentially staggered manner.
Preferably, the thickness of the corrugated steel plate is 1.6-10.0 mm, and the diameters of the connecting hole and the mounting hole are both set to be 18-22 mm.
Preferably, the first fastener comprises a bolt, the deck plate is fixedly connected with the upright post through a second fastener, and the second fastener comprises an expansion bolt.
Preferably, a climbing ladder is further arranged on the wall surface of the upright post located in the well.
Compared with the prior art, the utility model provides a drainage well based on ripple steel construction has following beneficial effect:
the utility model provides a drainage well based on ripple steel construction, including concrete well seat and derrick, the derrick is along the vertical top of laying in the concrete well seat, the derrick includes stand and collar tie beam, the stand is fixed to be located on the concrete well seat and the protrusion is laid in the top surface of concrete well seat, a plurality of stands are arranged along the circumference interval, the collar tie beam encircle the stand setting and with stand fixed connection, still including being annular arch bar subassembly, the arch bar subassembly encircle the derrick setting and with derrick fixed connection along circumference, the arch bar subassembly is the corrugated structure along the axial. The utility model discloses set up the arch bar subassembly of ripple construction, increase the bending resistance moment of inertia of arch bar subassembly with the ripple for the drainage shaft has higher bearing capacity and stability, through connecting into whole with arch bar subassembly and derrick, thereby has strengthened the influence of resisting external force by a wide margin, makes the drainage shaft can adapt to various complicated flow states, and the on-the-spot installation construction is simple, and overall structure factor of safety is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of a corrugated steel plate according to an embodiment of the present invention;
fig. 2 is a side view of a corrugated steel plate according to an embodiment of the present invention;
fig. 3 is a top view of a corrugated steel plate according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of a drainage well in an embodiment of the invention;
fig. 5 is a schematic view of a partial structure of a derrick according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a corrugated steel plate according to another embodiment of the present invention;
fig. 7 is a schematic view of a partial structure of a derrick according to another embodiment of the present invention;
the reference numbers illustrate:
a drainage well 100; a concrete well base 200; a derrick 300; a column 310; a ladder 311; a collar beam 320; an arch bar assembly 400; a deck plate 410; a connecting plate 420; mounting holes 421; a connecting hole 422; a water discharge port 423; a gasket 424; a first fastener 425; and a second fastener 426.
The purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-7, the utility model provides a drainage well 100 based on ripple steel construction, including concrete well base 200 and derrick 300, derrick 300 is along vertical the laying in the top of concrete well base 200, derrick 300 includes stand 310 and girt 320, stand 310 is fixed to be located on the concrete well base 200 and protrusion in the top surface of concrete well base 200 is laid, and is a plurality of stand 310 is arranged along circumference interval, girt 320 encircle stand 310 set up and with stand 310 fixed connection, still including being annular arch bar subassembly 400, arch bar subassembly 400 encircles along circumference derrick 300 set up and with derrick 300 fixed connection, arch bar subassembly 400 is the corrugated structure along the axial.
Specifically, the drainage well 100 includes a concrete well base 200, a derrick 300, and a crown plate assembly 400, and the concrete well base 200 is reinforced concrete for supporting the derrick 300 at an upper end and a shaft for connecting lower ends. The derrick 300 is vertically connected to the top of the concrete well base 200, the derrick 300 includes a plurality of columns 310 and a plurality of girts 320, the columns 310 are uniformly spaced at the top of the concrete well base 200 along the circumferential direction, and the girts 320 are uniformly spaced around the columns 310 along the vertical direction to connect the plurality of columns 310 as a whole. The arch bar assembly 400 is arranged around the derrick 300 and fixedly connected with the derrick 300, so that the arch bar assembly 400 and the derrick 300 are integrally formed, the arch bar assembly 400 is in a corrugated structure along the axial direction, the bending resistance inertia moment of the arch bar assembly 400 is increased by utilizing the corrugations, and the high bearing capacity and the high stability are realized.
Flood in the reservoir drains downwards through overflowing the top of each layer of the arch bar assembly 400 with the corrugated structure, and the frame-type drainage well 100 has larger drainage capacity and is suitable for tail reservoirs with large catchment area, small flood regulation reservoir capacity and large flood prevention and drainage pressure.
It should be understood that, the arch bar assembly 400 with the corrugated structure is provided, the bending resistance inertia moment of the arch bar assembly 400 is increased by the corrugations, so that the drainage well 100 has high bearing capacity and stability, and the arch bar assembly 400 and the derrick 300 are connected into a whole, so that the influence of external force resistance is greatly enhanced, the drainage well 100 can adapt to various complicated flow states, the field installation and construction are simple, and the safety coefficient of the whole structure is high.
As a preferred embodiment of the utility model, arch bar subassembly 400 includes a plurality of corrugated steel plate 410 along circumference concatenation, corrugated steel plate 410 is the arc setting along circumference, corrugated steel plate 410 is the corrugate setting along the axial, corrugated steel plate 410 inwards is horizontal bending along axial both ends and forms connecting plate 420, be equipped with the mounting hole 421 of laying along circumference on connecting plate 420, along axially adjacent two corrugated steel plate 410 through first fastener 425 with mounting hole 421 cooperation is connected, corrugated steel plate 410 has seted up connecting hole 422 along two tip of circumference, along circumference two of assembling corrugated steel plate 410 through first fastener 425 with connecting hole 422 cooperation is connected.
In detail, the arch bar assembly 400 includes a plurality of corrugated steel plates 410, and the corrugated steel plates 410 are arranged in an arc shape along the circumferential direction, so that the plurality of corrugated steel plates 410 are spliced along the circumferential direction, and are fixedly connected with the derrick 300, and the corrugated steel plates 410 are bent and extended along the axial direction to form a corrugated structure. Corrugated steel plate 410 is along axial both ends for horizontal bending setting, has seted up a plurality of mounting holes 421 that evenly lay along circumference on connecting plate 420 to connect through first fastener 425 along two axial adjacent corrugated steel plate 410, corrugated steel plate 410 is along evenly spaced apart a plurality of connecting holes 422 that are equipped with along the axial at circumferential both ends, so that two adjacent corrugated steel plate 410 along circumference connect through first fastener 425.
It should be understood that the provision of the assemblable deck 410, bent to form tube segments or arcuate sheets, and the use of corrugations to increase the bending moment of inertia of the deck, allows the drainage well 100 to have high load bearing capacity and stability, and be connected using fasteners to form the assemblable deck 410 structure. By integrally connecting the deck plate 410 and the derrick 300, resistance to external force is greatly enhanced, so that the drainage well 100 can be adapted to various complicated flow patterns. Compared with a cast-in-place concrete arch plate, the drainage well 100 with the corrugated steel structure has the advantages of controllable quality of factory standardized manufacture, simplicity in field installation and construction, high safety coefficient of the whole structure and the like.
As a preferred embodiment of the present invention, a water outlet 423 for drainage is disposed in the middle of the corrugated steel plate 410.
It should be understood that another embodiment is provided, a drainage opening 423 is formed in the middle of the corrugated steel plate 410, so as to facilitate drainage from the drainage opening 423, flood in the mine is drained through the customized drainage opening 423 which is diffused through the middle of each layer of corrugated steel plate 410, the window type drainage capacity is small, the construction is simple, and the method is suitable for the tailings mine with small catchment area, large flood regulation capacity and small flood prevention and drainage pressure.
Furthermore, each corrugated steel plate 410 is provided with two water discharge openings 423, and the cross section of each water discharge opening 423 is rectangular.
In detail, the number of the drainage openings 423 may be selected according to actual needs, and two or three drainage openings may be provided, in this embodiment, two drainage openings 423 are provided on each corrugated steel plate 410, and the cross-sectional shape of each drainage opening 423 is set to be rectangular, so as to facilitate quick flood discharge and the like.
As a preferred embodiment of the present invention, the bottom of the arch bar assembly 400 is partially embedded in the concrete well base 200 and is fixedly connected to the concrete well base 200.
It should be noted that during installation, the bottom of the arch bar assembly 400 is partially embedded in and fixedly attached to the concrete well base 200, which enhances its integrity and better resists the impact of water currents on the drainage well 100.
In this embodiment, the first layer of corrugated steel plate 410 is embedded into the concrete well base 200, and then the corrugated steel plate 410 and the vertical column 310 are fixed to form a whole, so as to better resist earthquake, extra flood or other abnormal operation states, bear larger vibration load or tension, and ensure the normal operation of the drainage well 100.
As a preferred embodiment of the present invention, a sealing gasket 424 is disposed between two axially adjacent corrugated steel plates 410.
It should be understood that a sealing gasket 424 is further disposed between the upper and lower corrugated steel plates 410, the sealing gasket 424 can prevent liquid leakage, the sealing gasket 424 fills up unevenness of the joint surface of the corrugated steel plates 410 by elastic deformation thereof, cuts off a leakage path, and plays a role in sealing, thereby ensuring normal use of the drainage well 100.
Further, two axially adjacent corrugated steel plates 410 are circumferentially arranged in a staggered manner.
Specifically, the arrangement of the plurality of corrugated steel plates 410 may be set according to actual requirements, in this embodiment, the arrangement of the plurality of corrugated steel plates 410 along the circumferential direction is set to be staggered, and due to the decomposition of force, the center of each corrugated steel plate 410 is diffused leftwards, rightwards and downwards, and the force is decomposed, thereby increasing the overall firmness of the corrugated steel plates 410.
In a preferred embodiment of the present invention, the thickness of the corrugated steel plate 410 is 1.6 to 10.0mm, and the diameters of the connection hole 422 and the installation hole 421 are both set to 18 to 22mm.
It should be noted that the thickness of the corrugated steel plate 410 can be set according to actual needs, and the diameters of the connection hole 422 and the installation hole 421 can also be set according to actual needs, in this embodiment, the thickness of the corrugated steel plate 410 is set to be 1.6-10.0 mm, which can bear large load and is convenient for processing, the diameters of the connection hole 422 and the installation hole 421 are set to be 18-22 mm, and M18 bolts can be used for connection, so that the self-locking performance is good, and large impact vibration and load can be borne.
In a preferred embodiment of the present invention, the first fastening member 425 comprises a bolt, the deck plate 410 is fixedly connected to the pillar 310 by a second fastening member 426, and the second fastening member 426 comprises an expansion bolt.
It should be understood that the bolts are high-strength bolts, the corrugated steel plates 410 are axially connected into a whole by the high-strength bolts, the corrugated steel plates 410 are circumferentially connected into a whole by the high-strength bolts, and the high-strength bolts are made of high-strength steel, so that the plates of the connecting plate 420 are clamped by a large pre-tightening pressure in the bolt rods, a large friction force is generated, and the connection integrity and rigidity of the corrugated steel plates 410 are improved.
The expansion bolt is adopted to connect the corrugated steel plate 410 and the upright post 310 into a whole, the expansion bolt utilizes the wedge-shaped inclination to promote expansion to generate friction force, the corrugated steel plate 410 is not easy to fall off by utilizing the friction force, and further the fixing effect is achieved, so that the corrugated steel plate 410 takes root on the upright post 310, and the expansion bolt has the advantages of simple construction, good stress performance, detachability, fatigue resistance, no looseness under the action of dynamic load and the like.
The deck plate 410 and the derrick 300 are integrally connected by the first fastener 425 and the second fastener 426, thereby greatly enhancing resistance against the external force.
Furthermore, a climbing ladder 311 is further disposed on the wall surface of the upright 310 in the well.
It should be noted that a ladder 311 is further disposed in the drainage well 100, and the ladder 311 is fixedly embedded on the wall surface of the column 310 in the well, so that the drainage well 100 is convenient to use and simple in structure when workers need to overhaul and maintain the drainage well 100.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a drainage well based on ripple steel construction, a serial communication port, including concrete well seat and derrick, the derrick is along vertical the laying in the top of concrete well seat, the derrick includes stand and collar tie beam, the stand is fixed to be located on the concrete well seat and the protrusion in the top surface of concrete well seat is laid, and is a plurality of the stand is arranged along the circumference interval, the collar tie beam encircles the stand setting and with stand fixed connection still includes and is annular arch bar subassembly, the arch bar subassembly encircles along circumference the derrick set up and with derrick fixed connection, the arch bar subassembly is the corrugated structure along the axial.
2. The draining well based on the corrugated steel structure as claimed in claim 1, wherein the arch bar assembly comprises a plurality of corrugated steel plates spliced along the circumferential direction, the corrugated steel plates are arranged in an arc shape along the circumferential direction, the corrugated steel plates are arranged in a corrugated shape along the axial direction, the corrugated steel plates are inwards bent horizontally along the axial direction to form connecting plates, mounting holes distributed along the circumferential direction are formed in the connecting plates, two corrugated steel plates adjacent along the axial direction are connected with the mounting holes in a matched manner through first fasteners, connecting holes are formed in two end portions of the corrugated steel plates along the circumferential direction, and two corrugated steel plates assembled along the circumferential direction are connected with the connecting holes in a matched manner through the first fasteners.
3. The drainage shaft based on the corrugated steel structure as claimed in claim 2, wherein a drainage port for drainage is opened in the middle of the corrugated steel plate.
4. The draining well according to claim 3, wherein two draining openings are formed in each corrugated steel plate, and the cross-sectional shape of each draining opening is rectangular.
5. The drainage well of claim 1, wherein the bottom of the arch bar assembly is partially embedded in and fixedly connected to the concrete well base.
6. The drainage well based on the corrugated steel structure as claimed in claim 2, wherein a gasket is disposed between two of the corrugated steel plates adjacent in the axial direction.
7. The drainage well based on the corrugated steel structure as claimed in claim 2, wherein two of the corrugated steel plates that are adjacent in the axial direction are arranged in a circumferentially staggered manner.
8. The draining well based on the corrugated steel structure as claimed in claim 2, wherein the thickness of the corrugated steel plate is 1.6-10.0 mm, and the diameters of the connection hole and the installation hole are set to be 18-22 mm.
9. The corrugated steel structure-based drainage well according to claim 2, wherein the first fastener comprises a bolt, the corrugated steel plate is fixedly connected with the pillar through a second fastener, and the second fastener comprises an expansion bolt.
10. The draining well based on the corrugated steel structure as claimed in claim 1, wherein a ladder stand is further provided on the wall surface of the column inside the well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222348055.4U CN218233435U (en) | 2022-09-02 | 2022-09-02 | Drainage well based on corrugated steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222348055.4U CN218233435U (en) | 2022-09-02 | 2022-09-02 | Drainage well based on corrugated steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218233435U true CN218233435U (en) | 2023-01-06 |
Family
ID=84685914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222348055.4U Active CN218233435U (en) | 2022-09-02 | 2022-09-02 | Drainage well based on corrugated steel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218233435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116180873A (en) * | 2023-04-27 | 2023-05-30 | 矿冶科技集团有限公司 | Derrick and frame type drainage well |
-
2022
- 2022-09-02 CN CN202222348055.4U patent/CN218233435U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116180873A (en) * | 2023-04-27 | 2023-05-30 | 矿冶科技集团有限公司 | Derrick and frame type drainage well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207160548U (en) | A kind of anchor of overhanging scaffold | |
| CN218233435U (en) | Drainage well based on corrugated steel structure | |
| CN108166645B (en) | Removable energy dissipation wall of pin-connected panel and removable energy dissipation structure | |
| CN211898414U (en) | Combined type supporting construction for building | |
| CN108487549B (en) | Assembled function-recoverable steel skeleton concrete combined column and mounting method | |
| CN216195312U (en) | Novel frame-type drainage well | |
| JP2019108701A (en) | Fence for safety measures of reinforced soil wall construction | |
| CN109680923B (en) | Mounting structure and building method of cantilever scaffold bottom platform | |
| KR20140027840A (en) | Supporting structure for underground external wall using double layer wale and truss combined strut | |
| CN111962686A (en) | Beam column structure for building and construction method thereof | |
| CN217634263U (en) | Assembled concrete pipeline support | |
| CN217500673U (en) | Combined shear wall for steel tube concrete bundle | |
| CN217949432U (en) | Combined steel plate shear wall | |
| CN217232257U (en) | Connecting node of trapezoidal steel house framework of factory building | |
| CN217758305U (en) | Steel pipe concrete lattice column with replaceable energy-consuming corrugated steel plate | |
| CN215518856U (en) | Support and stand connection structure for basement building | |
| CN115075530B (en) | Cantilever structure and construction method thereof | |
| CN214141320U (en) | Tower crane attaches wall sub-assembly among unit-installment shear wall structure | |
| CN212200732U (en) | Fixing structure of external extending tubular column of building | |
| CN214219736U (en) | Assembled piping lane support and piping lane | |
| CN213952945U (en) | Safety protection device for overhanging layer of external scaffold | |
| CN217733801U (en) | Steel pipe concrete arch bridge reinforced structure | |
| CN210828431U (en) | House reinforcing structure | |
| CN220434311U (en) | Secondary grouting-free exposed rigid joint column foot | |
| CN220014110U (en) | Shear support wall structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |