CN214832755U - Foundation pit supporting structure of vertical anchor rod of batter pile - Google Patents
Foundation pit supporting structure of vertical anchor rod of batter pile Download PDFInfo
- Publication number
- CN214832755U CN214832755U CN202121642238.6U CN202121642238U CN214832755U CN 214832755 U CN214832755 U CN 214832755U CN 202121642238 U CN202121642238 U CN 202121642238U CN 214832755 U CN214832755 U CN 214832755U
- Authority
- CN
- China
- Prior art keywords
- foundation ditch
- pile
- batter pile
- batter
- foundation pit
- 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
- Foundations (AREA)
Abstract
The utility model relates to a foundation ditch supporting construction of vertical stock of batter pile belongs to the field of foundation ditch enclosure, and it includes a plurality of batter piles of arranging the setting along the domatic length direction of foundation ditch, sets up at the guan liang of foundation ditch sloping top and wear to establish a plurality of stocks of vertical setting in guanliang, the one end that the foundation ditch bottom surface was kept away from to the batter pile all with guanliang fixed connection, the other end of batter pile is inserted and is established in the foundation ditch bottom surface soil horizon, stock and guanliang fixed connection, the one end that the stock was kept away from guanliang is inserted and is established in the soil layer in the foundation ditch outside, be fixed with a plurality of horizontal poles on the batter pile, the horizontal pole level sets up and arranges along the length direction of batter pile, the one end that the horizontal pole was kept away from the batter pile is inserted and is established in the soil layer of foundation ditch outside. This application when the guarantee is to the good support of foundation ditch and protecting effect, reduces to occupy the foundation ditch inner space, the staff's of being convenient for follow-up construction operation to improve the efficiency of construction, shorten construction cycle.
Description
Technical Field
The application relates to the field of foundation pit bracing, in particular to a foundation pit supporting structure with an inclined pile combined with a vertical anchor.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby the site, and waterproof drainage work is performed. The person who is not excavated can use the method of putting the side slope to stabilize the earth slope, and the size of the slope is determined according to the relevant construction regulations. And the foundation pit needs to be supported by a supporting structure after excavation, so that collapse is prevented.
Relevant notice number is CN 212865956U's china utility model, it discloses an interior bearing structure of foundation ditch, it includes that a plurality of is used for strutting the first horizontal baffle of foundation ditch length direction inner wall and a plurality of is used for strutting the second horizontal baffle of foundation ditch width direction inner wall, the first horizontal baffle of a plurality of and the horizontal baffle of a plurality of second are all arranged along vertical direction, one side that the foundation ditch inner wall was kept away from to first horizontal baffle is provided with the primary importance board, the lateral wall butt of primary importance board in the lateral wall of primary importance board, it is provided with the first bracing piece that is used for supporting two primary importance boards to be located between two primary importance boards of the relative inner wall of foundation ditch fixedly.
Aiming at the related technologies, the inventor thinks that the related supporting structure occupies more space inside the foundation pit, is not beneficial to the subsequent excavation work of the earthwork of the foundation pit, and prolongs the construction period.
SUMMERY OF THE UTILITY MODEL
Occupy the inside space of foundation ditch more for relevant bearing structure, be unfavorable for the excavation work's of foundation ditch earthwork problem, this application provides a foundation ditch supporting construction of vertical stock of batter pile.
The application provides a pair of foundation ditch supporting construction of vertical stock of batter pile adopts following technical scheme:
the utility model provides a foundation ditch supporting construction of vertical stock of batter pile, includes a plurality of batter piles of arranging the setting along the domatic length direction of foundation ditch, sets up at the guan liang of foundation ditch sloping top and wear to establish a plurality of stock of vertical setting in guanliang, the one end that the foundation ditch bottom surface was kept away from to the batter pile all with guanliang fixed connection, the other end of batter pile is inserted and is established in the foundation ditch bottom surface soil horizon, stock and guanliang fixed connection, the one end that the guanliang was kept away from to the stock is inserted and is established in the soil layer in the foundation ditch outside, be fixed with a plurality of horizontal poles on the batter pile, the horizontal pole level sets up and arranges along the length direction of batter pile, the one end that the batter pile was kept away from to the horizontal pole is inserted and is established in the soil layer of foundation ditch outside.
Through adopting above-mentioned technical scheme, utilize batter pile, hat roof beam, stock and horizontal pole to constitute foundation ditch supporting construction, the batter pile is laid on domatic of foundation ditch, and hat roof beam is located the slope top of foundation ditch, stock and horizontal pole all wear to establish in the soil layer in the foundation ditch outside, when the guarantee is to the good support of foundation ditch and protective effect, reduces to occupy the foundation ditch inner space, the staff's of being convenient for follow-up construction operation to improve the efficiency of construction, shorten construction cycle.
Preferably, the connecting hole that supplies the horizontal pole to penetrate is seted up to the batter pile, the horizontal pole includes inserted bar and adapter sleeve, adapter sleeve's one end is kept away from to the inserted bar is worn to establish in the soil horizon outside the foundation ditch, the inserted bar passes through adapter sleeve and batter pile relatively fixed, the inside cavity of inserted bar sets up and is formed with the slip casting chamber, set up a plurality of slip casting holes that communicate with the slip casting chamber on the outer wall of inserted bar.
Through adopting above-mentioned technical scheme, the horizontal pole inserts through the connecting hole and establishes in the foundation ditch soil horizon, pours into concrete mortar into to the inside of inserted bar through the slip casting chamber, and concrete mortar outwards permeates and solidifies through the slip casting hole, improves the joint strength and the stability of horizontal pole and foundation ditch soil horizon, improves this supporting construction's stability then.
Preferably, one end of the inserted bar is arranged in the connecting sleeve in a penetrating mode and is in threaded connection with the connecting sleeve, the connecting sleeve is located in the connecting hole and is in threaded connection with the inclined pile, and the screwing direction of the threads of the connecting sleeve and the inclined pile is opposite to that of the threads of the connecting sleeve and the inserted bar.
Through adopting above-mentioned technical scheme, adapter sleeve and batter pile threaded connection, be convenient for the connection between horizontal pole and the batter pile, and the threaded connection of adapter sleeve and inserted bar and batter pile revolves to opposite to the convenience is dismantled between batter pile and the horizontal pole, can stay the inserted bar after the slip casting in the foundation ditch, demolish between oblique beam and hat roof beam and the foundation ditch, the reuse of supporting structure of being convenient for.
Preferably, the periphery cover of inserted bar is equipped with the elastic ring, the laminating cladding of elastic ring is on the inserted bar, a plurality of micropores have been seted up on the elastic ring.
Through adopting above-mentioned technical scheme, when injecting concrete mortar into the inserted bar, concrete mortar is discharged from the grout injection hole department that is close to adapter sleeve earlier easily, it is inhomogeneous to lead to out the thick liquid, the elastic ring is used for keeping the pressure in the slip casting intracavity, along with constantly pouring into concrete mortar into the slip casting intracavity, the pressure in slip casting chamber constantly increases, thereby outwards strut the elastic ring, make the micropore grow, then concrete mortar loops through slip casting hole and micropore and outwards discharges, thereby make the outwards discharge that concrete mortar can be even, and then improve joint strength and stability between horizontal pole and the foundation ditch.
Preferably, two adjacent fixedly connected with floorbars between the batter piles, the floorbar laminating sets up in the bottom surface of foundation ditch.
Through adopting above-mentioned technical scheme, the bottom of two batter piles is connected fixedly through the floorbar, improves the joint strength between the batter pile to further improve this supporting construction to the support and the protective effect of foundation ditch.
Preferably, a square paving and hanging area is formed among the bottom beam, the top beam and the inclined piles in a surrounding mode, and a reinforcing mesh is paved in the paving and hanging area.
By adopting the technical scheme, the soil layer on the slope surface of the foundation pit is stabilized and protected, the possibility of soil layer slip of the foundation pit side slope is reduced, and the construction safety is guaranteed.
Preferably, four corners of the hanging area are provided with pull rods, one end of each pull rod is fixedly connected with the inclined pile, and the other end of each pull rod is fixedly connected with the adjacent crown beam or the adjacent bottom beam.
Through adopting above-mentioned technical scheme, further improve this supporting construction's overall structure's stability for the difficult slope that takes place of batter pile improves support and the protective effect to the foundation ditch.
Preferably, one surface of the inclined pile, which is close to the slope surface of the foundation pit, is a bonding surface, and the bonding surface is zigzag in the length direction of the inclined pile.
Through adopting above-mentioned technical scheme, increase the area of contact of batter pile and foundation ditch, improve the bonding strength between batter pile and the domatic of foundation ditch for the condition of landslide is difficult for appearing in the batter pile, the guarantee is to the effect of strutting of foundation ditch.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arrangement of the inclined piles, the anchor rods, the crown beams and the cross rods, the occupation of the internal space of the foundation pit is reduced while the good supporting and protecting effects on the foundation pit are guaranteed, and the subsequent construction operation of workers is facilitated, so that the construction efficiency is improved, and the construction period is shortened;
2. by arranging the reinforcing mesh, the soil layer on the slope surface of the foundation pit is stabilized and protected, the possibility of the soil layer on the side slope of the foundation pit slipping is reduced, and the construction safety is guaranteed;
3. through setting up the faying face, increase the contact nep of batter pile and foundation ditch, improve the bonding strength between batter pile and the domatic of foundation ditch for the condition of landslide is difficult for appearing in the batter pile, the guarantee is to the effect of strutting of foundation ditch.
Drawings
Fig. 1 is a schematic structural diagram of a foundation pit supporting structure of a vertical anchor rod of an oblique pile according to an embodiment of the present application.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partial sectional view of a structure embodying a cross bar according to an embodiment of the present application.
Description of reference numerals: 1. oblique piles; 11. a bonding surface; 12. connecting holes; 13. paving a hanging area; 2. a crown beam; 3. an anchor rod; 4. a cross bar; 41. inserting a rod; 411. grouting holes; 412. a grouting cavity; 42. connecting a sleeve; 43. an elastic ring; 5. a bottom beam; 6. a pull rod; 7. and (4) reinforcing mesh.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses foundation ditch supporting construction of vertical stock of batter pile. Referring to fig. 1 and 2, a foundation pit supporting structure of a vertical anchor rod of an oblique pile includes a crown beam 2, a bottom beam 5, and a plurality of oblique piles 1. The batter pile 1 is attached to the slope surface of the fixed foundation pit, and the plurality of batter piles 1 are arranged along the length direction of the slope surface of the foundation pit. Crown beam 2 level sets up on the top of a slope of foundation ditch, and the one end and crown beam 2 fixed connection of batter pile 1 keeping away from the foundation ditch bottom surface, and the other end of batter pile 1 is inserted and is established in the soil horizon of foundation ditch bottom surface. The bottom beam 5 is fixed between two adjacent oblique piles 1, and the bottom beam 5 is attached to the bottom surface of the foundation pit. Be provided with stock 3 between two adjacent batter piles 1, stock 3 wears to establish perpendicularly in guan liang 2, and stock 3 is kept away from the one end of guanliang 2 and is worn to establish in the soil horizon in the foundation ditch outside. Therefore, the supporting structure can reduce the occupation of the internal space of the foundation pit while ensuring good supporting and protecting effects on the foundation pit, is not easy to cause interference and influence on the construction operation of the foundation pit, and improves the construction efficiency.
Referring to fig. 1 and 2, a square hanging area 13 is defined among the bottom beams 5, the top beams 2 and the inclined piles 1, and reinforcing meshes 7 are laid in the hanging area 13, so that a good protection effect is achieved on soil layers on the slope surface of the foundation pit, and the soil layers on the slope surface of the foundation pit are not prone to slipping. Four edges of the hanging area 13 are provided with pull rods 6, one end of each pull rod 6 is fixedly connected with the inclined pile 1, and the other end of each pull rod 6 is fixedly connected with the adjacent crown beam 2 or the bottom beam 5, so that the stability of the whole structure of the supporting structure is improved, the inclined pile 1 is not prone to tilting, the reinforcing mesh 7 is assisted and fixed, and the connection stability of the reinforcing mesh 7 and the slope surface of the foundation pit is guaranteed.
Referring to fig. 1 and 2, one surface of the inclined pile 1, which is close to the slope surface of the foundation pit, is a bonding surface 11, the bonding surface 11 is zigzag in the length direction of the inclined pile 1, the bonding surface 11 is attached to the slope surface of the foundation pit, the contact area between the inclined pile 1 and the slope surface of the foundation pit is increased, and the connection stability between the inclined pile 1 and the foundation pit is improved.
Referring to fig. 2 and 3, in order to further improve the connection strength and stability between the batter pile 1 and the foundation pit, a plurality of connection holes 12 are formed in the batter pile 1, and the connection holes 12 are arranged along the length direction of the batter pile 1. The cross rod 4 penetrates through the connecting hole 12, the cross rod 4 and the inclined pile 1 are fixed relatively, and one end, far away from the inclined pile 1, of the cross rod 4 is inserted into a soil layer on the outer side of the foundation pit.
Referring to fig. 2 and 3, the cross bar 4 includes an insert rod 41 and a connection sleeve 42, the insert rod 41 is hollow and forms a grouting cavity 412, a plurality of grouting holes 411 are formed on the outer wall of the insert rod 41, and the grouting holes 411 are communicated with the grouting cavity 412. One end of the inserted rod 41 penetrates through the connecting sleeve 42, the inserted rod 41 is in threaded connection with the connecting sleeve 42, the grouting cavity 412 penetrates through the end face, close to the connecting sleeve 42, of the inserted rod 41, and one end, far away from the connecting sleeve 42, of the inserted rod 41 is inserted into the soil layer on the outer side of the foundation pit. The connecting sleeve 42 is arranged in the connecting hole 12 in a penetrating mode, the connecting sleeve 42 is in threaded connection with the inclined pile 1, and the screwing directions of the connecting sleeve 42 and the inclined pile 1 are opposite to the screwing directions of the connecting sleeve 42 and the inserting rod 41. When the cross rod 4 is inserted into the soil layer outside the foundation pit, concrete mortar is injected into the cross rod 4 through the grouting cavity 412, the concrete mortar is discharged into the soil layer through the grouting holes 411 and is solidified, the connection strength between the cross rod 4 and the soil layer outside the foundation pit is improved, and the stability of the supporting structure is further improved.
Referring to fig. 2 and 3, when the concrete mortar is injected into the plunger 41, the concrete mortar is easily discharged from the grouting hole 411 adjacent to the connection sleeve 42, resulting in uneven grout discharge. An elastic ring 43 is sleeved on the outer periphery of the insertion rod 41, the elastic ring 43 is made of rubber, the elastic ring 43 is attached and coated on the outer periphery of the insertion rod 41, and a plurality of micropores (not shown in the figure) are formed in the elastic ring 43, and the diameter of each micropore is 0.1mm-0.3 mm. In this example, the diameter of the micropores is 0.2 mm. Along with concrete mortar constantly pours into grouting cavity 412 in, the pressure in grouting cavity 412 constantly increases, and then struts elastic ring 43 for the grow thereupon of micropore's diameter, thereby concrete mortar discharges from grout outlet hole and micropore, makes concrete mortar go out thick liquid more evenly comprehensively, improves the fastness of being connected between horizontal pole 4 and the foundation ditch.
The implementation principle of the foundation pit supporting structure of the vertical anchor rod of the batter pile in the embodiment of the application is as follows: through batter pile 1, hat roof beam 2, the floorbar 5, stock 3, parts such as horizontal pole 4 and reinforcing bar net 7 constitute foundation ditch supporting structure, batter pile 1 is laid on domatic of foundation ditch, hat roof beam 2 and floorbar 5 are connected in batter pile 1's both ends, stock 3 and horizontal pole 4 are all worn to establish in the soil layer in the foundation ditch outside, make this supporting structure have good support and protecting effect to the foundation ditch, and simultaneously, this supporting structure occupies lessly to the inside space of foundation ditch, the staff's of being convenient for follow-up construction operation, thereby improve the efficiency of construction, shorten construction cycle.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a foundation ditch supporting construction of vertical stock of batter pile which characterized in that: including arranging a plurality of batter piles (1) that set up, setting at crown beam (2) of foundation ditch sloping top and wear to establish a plurality of stock (3) of vertical setting in crown beam (2) along the domatic length direction of foundation ditch, the one end that the foundation ditch bottom surface was kept away from in batter pile (1) all with crown beam (2) fixed connection, the other end of batter pile (1) is inserted and is established in the foundation ditch bottom surface soil horizon, stock (3) and crown beam (2) fixed connection, the one end that crown beam (2) were kept away from in stock (3) is inserted and is established in the soil horizon in the foundation ditch outside, be fixed with a plurality of horizontal poles (4) on batter pile (1), horizontal pole (4) level sets up and arranges along the length direction of batter pile (1), the one end that batter pile (1) was kept away from in horizontal pole (4) is inserted and is established in the foundation ditch outside soil horizon.
2. The foundation pit supporting structure of the batter pile vertical anchor rod according to claim 1, characterized in that: connecting hole (12) that supply horizontal pole (4) to penetrate are seted up in batter pile (1), horizontal pole (4) are including inserted bar (41) and connecting sleeve (42), the one end that connecting sleeve (42) were kept away from in inserted bar (41) wears to establish in foundation ditch outside soil horizon, inserted bar (41) are through connecting sleeve (42) and batter pile (1) relatively fixed, the inside cavity setting of inserted bar (41) is formed with slip casting chamber (412), set up on the outer wall of inserted bar (41) a plurality of slip casting holes (411) that communicate with slip casting chamber (412).
3. The foundation pit supporting structure of the batter pile vertical anchor rod according to claim 2, characterized in that: one end of the inserted bar (41) is arranged in a connecting sleeve (42) in a penetrating mode and is in threaded connection with the connecting sleeve (42), the connecting sleeve (42) is located in the connecting hole (12), the connecting sleeve (42) is in threaded connection with the inclined pile (1), and the threaded connection between the connecting sleeve (42) and the inclined pile (1) is opposite to the threaded connection between the connecting sleeve (42) and the inserted bar (41).
4. The foundation pit supporting structure of the batter pile vertical anchor rod according to claim 3, characterized in that: elastic ring (43) are sleeved on the periphery of the inserted bar (41), the elastic ring (43) is attached and coated on the inserted bar (41), and a plurality of micropores are formed in the elastic ring (43).
5. The foundation pit supporting structure of the batter pile vertical anchor rod according to claim 1, characterized in that: two adjacent fixedly connected with floorbar (5) between batter pile (1), floorbar (5) laminating sets up in the bottom surface of foundation ditch.
6. The foundation pit supporting structure of the batter pile vertical anchor rod according to claim 5, characterized in that: a square paving and hanging area (13) is defined among the bottom beam (5), the crown beam (2) and the inclined piles (1), and a reinforcing mesh (7) is paved in the paving and hanging area (13).
7. The foundation pit supporting structure of the batter pile vertical anchor rod according to claim 6, characterized in that: four corners of the hanging area (13) are provided with pull rods (6), one ends of the pull rods (6) are fixedly connected with the inclined piles (1), and the other ends of the pull rods (6) are fixedly connected with the adjacent crown beams (2) or the bottom beams (5).
8. The foundation pit supporting structure of the batter pile vertical anchor rod according to claim 1, characterized in that: one surface of the inclined pile (1) close to the slope surface of the foundation pit is provided with a joint surface (11), and the joint surface (11) is in a zigzag shape in the length direction of the inclined pile (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121642238.6U CN214832755U (en) | 2021-07-19 | 2021-07-19 | Foundation pit supporting structure of vertical anchor rod of batter pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121642238.6U CN214832755U (en) | 2021-07-19 | 2021-07-19 | Foundation pit supporting structure of vertical anchor rod of batter pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214832755U true CN214832755U (en) | 2021-11-23 |
Family
ID=78833231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121642238.6U Active CN214832755U (en) | 2021-07-19 | 2021-07-19 | Foundation pit supporting structure of vertical anchor rod of batter pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214832755U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045841A (en) * | 2021-12-02 | 2022-02-15 | 浙江银晨建设有限公司 | Foundation pit supporting structure |
| CN114687352A (en) * | 2022-03-07 | 2022-07-01 | 中煤建工集团有限公司 | Self-stabilizing broken line sheet pile wall structure |
-
2021
- 2021-07-19 CN CN202121642238.6U patent/CN214832755U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045841A (en) * | 2021-12-02 | 2022-02-15 | 浙江银晨建设有限公司 | Foundation pit supporting structure |
| CN114687352A (en) * | 2022-03-07 | 2022-07-01 | 中煤建工集团有限公司 | Self-stabilizing broken line sheet pile wall structure |
| CN114687352B (en) * | 2022-03-07 | 2024-03-26 | 中煤建工集团有限公司 | Self-stabilizing type broken line sheet pile wall structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214832755U (en) | Foundation pit supporting structure of vertical anchor rod of batter pile | |
| CN103758134B (en) | A kind of construction method combining Double-row Piles Support system | |
| CN107605489B (en) | Three line Large span tunnel inclined shafts are into positive cavity construction method | |
| CN103774675B (en) | Combined double-row-pile combined vertical prestress anchor rod supporting system and construction method thereof | |
| CN110318772A (en) | Canal in Loess Area is greatly across the asymmetric bore tunnel supporting construction of small interval and construction method | |
| CN109594568A (en) | A kind of rock slope ecological safeguard structure and its method | |
| CN103485351A (en) | Inclined pile vertical anchor rod supporting structure for foundation pit supporting and construction method thereof | |
| CN109914422A (en) | A kind of steel pipe and soil nailing combined type foundation pit supporting construction and construction method | |
| CN104863177A (en) | Composite retaining wall structure and construction method thereof | |
| CN103469803A (en) | Pile beam vertical anchor support system used for supporting foundation pit and construction method of pile beam vertical anchor support system | |
| CN110777802A (en) | Deep foundation pit high-low span supporting structure and construction method thereof | |
| CN204780990U (en) | Combined type retaining wall structure | |
| CN112854260B (en) | Ecological concrete rock-soil slope protection structure and construction method | |
| CN203498841U (en) | Inclined pile vertical anchor rod supporting structure used for foundation pit supporting | |
| CN204040041U (en) | A kind of front close rear thin Double-row Piles Support system being provided with vertical anchor pole | |
| CN203729309U (en) | Support system with combined double-row piles combined with vertical prestressed anchor bolts | |
| CN211143084U (en) | Supporting construction of foundation ditch | |
| CN203498842U (en) | Pile beam vertical anchor supporting system used for foundation pit supporting | |
| CN203429645U (en) | Slope support structure assembly | |
| CN105178355A (en) | Stratum pre-reinforcement treatment method for underground space construction | |
| CN216075140U (en) | Double-row pile and double-row high-pressure jet grouting waterproof curtain combined supporting structure | |
| CN215562699U (en) | Put slope excavation side slope protective structure | |
| CN213625605U (en) | Dig deep basal pit structure of stake anchor and hanging net injection concrete soon | |
| CN211646413U (en) | Modular lattice steel frame shotcrete anchor supporting construction | |
| CN110258584B (en) | Foundation pit side slope soil nailing pipe wall enclosure structure and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |