CN111997061A - Prefabricated pin-connected panel elevartor shaft foundation ditch encloses fender structure - Google Patents
Prefabricated pin-connected panel elevartor shaft foundation ditch encloses fender structure Download PDFInfo
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- CN111997061A CN111997061A CN202010329852.0A CN202010329852A CN111997061A CN 111997061 A CN111997061 A CN 111997061A CN 202010329852 A CN202010329852 A CN 202010329852A CN 111997061 A CN111997061 A CN 111997061A
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- column pile
- retaining structure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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Abstract
The invention discloses a prefabricated assembly type elevator shaft foundation pit retaining structure which comprises a foundation pit, wherein a first column pile, a second column pile and a retaining structure are fixed inside the foundation pit, one side edge of the first column pile is connected with the second column pile, the first column pile and the second column pile are fixed through inclined struts, the bottom ends of the first column pile and the second column pile are fixed inside the foundation pit through inserted rods, the retaining structure is fixed on one side edge of the first column pile, which is far away from the second column pile, and comprises a fixed seat, a fixed plate and a movable plate, the fixed plate is fixed on one side edge of the bottom end of the fixed seat, the movable plate is connected at the bottom end of the fixed seat and positioned on the side edge of the fixed plate in a sliding manner, the hollow structure is arranged inside the fixed seat, a first motor is fixed at the top of one side edge inside the fixed seat, an output shaft of the first motor is connected with a, a fixed sleeve is fixed on the transmission belt, and a sliding rod is fixed at the bottom end of the fixed sleeve.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a prefabricated assembled type elevator shaft foundation pit retaining structure.
Background
At present, the economy of China is in a high-speed development period, and a large number of building projects with elevator foundation pits need to be built every year. According to the traditional construction method, when the elevator shaft is constructed, firstly, a steel plate maintenance pile is driven into the elevator shaft to serve as a plurality of construction links such as foundation pit supporting, precipitation, desilting, building of a brick moulding bed with a large section and the like. The foundation pit safety fence is an essential tool for whole building activities as a safety measure tool of a construction site of building engineering, and mainly plays a role in isolating the construction foundation pit site from the outside, ensuring the external safety and avoiding non-workers from entering the site, thereby playing a role in safety protection. However, the existing enclosure is low in safety performance, collapse is easy to occur around a foundation pit, and great construction potential safety hazards exist.
Disclosure of Invention
The technical task of the invention is to provide a prefabricated assembled type elevator shaft foundation pit retaining structure aiming at the defects so as to solve the problems.
The technical scheme of the invention is realized as follows:
a prefabricated assembly type elevator shaft foundation pit retaining structure comprises a foundation pit, wherein a first column pile, a second column pile and a soil retaining structure are fixed inside the foundation pit, one side edge of the first column pile is connected with the second column pile, the first column pile and the second column pile are fixed through inclined struts, the bottom ends of the first column pile and the second column pile are fixed inside the foundation pit through inserted rods, the soil retaining structure is fixed on one side edge, away from the second column pile, of the first column pile, the soil retaining structure comprises a fixed seat, a fixed plate and a movable plate, the fixed plate is fixed on one side edge of the bottom end of the fixed seat, the movable plate is connected to the bottom end of the fixed seat and located on the side edge of the fixed plate in a sliding mode, the hollow structure is arranged inside the fixed seat, a first motor is fixed on one side edge of the top inside the fixed seat, and an output shaft of the first motor is, the bottom end of the first rotating shaft is fixed with a first belt pulley, the first belt pulley is connected with a second belt pulley through a transmission belt, a fixed sleeve is fixed on the transmission belt, a slide bar is fixed at the bottom end of the fixed sleeve, a slide rail matched with the slide bar is arranged at the position, corresponding to the slide bar, of the bottom end of the fixed seat, the bottom end of the slide bar is fixedly connected with one side of the top end of the movable plate, a plurality of first through holes are uniformly formed in the surface of the fixed plate, a plurality of second through holes are sequentially formed in the bottom of the first column pile from top to bottom, an electric telescopic rod penetrates through the insides of the first through holes and the second through holes, one end, far away from the soil retaining structure, of the electric telescopic rod penetrates through the second column pile, a plurality of third through holes are formed in the bottom of the inside of the second column pile and the position, corresponding to the electric, the inside middle part of connecting seat is fixed with the bulge, just the middle part of bulge runs through there is the hole, electric telescopic handle runs through the hole, the inside of connecting seat just is located the outside of bulge is hollow out construction, the outside cover of bulge be equipped with the change of bulge looks adaptation, a side fixed surface of change has the teeth of a cogwheel, the side of the teeth of a cogwheel be connected with the worm of teeth of a cogwheel looks adaptation, the one end of worm is connected with the output shaft of motor two, motor two is fixed the inside side of connecting seat, a plurality of spouts two have been seted up on the top of change, spout two sliding connection have with the traveller of spout two-phase adaptation, the top of traveller is fixed with the slide, the surface of connecting seat with the corresponding position of slide set up with the spout one of slide looks adaptation.
Preferably, a plurality of through holes IV are formed in the two ends of the electric telescopic rod, and limiting pins matched with the through holes IV are connected in the through holes IV.
Preferably, the surface of the convex cylinder is provided with a third annular sliding groove, and a sliding block matched with the three phases of the sliding groove is fixed at a position, corresponding to the three phases of the sliding groove, on the inner surface of the rotating ring.
Preferably, a plurality of convex edges are fixed at the joint of the bottom of the connecting seat and the first stud, and the convex edges are fixed with the first stud through fixing bolts.
Preferably, the bottom end of the first motor is fixed inside the fixed seat through a first supporting column.
Preferably, a connecting shaft is fixed in the middle of the second belt pulley, the top end of the connecting shaft is fixedly connected with the connecting block, the connecting shaft is connected with the connecting block through a bearing, and one side edge of the bottom end of the connecting block is fixed in the fixing seat through a second supporting column.
Preferably, the length of the slide rail is the same as the length of the movable plate.
Preferably, a convex plate is fixed in the middle of one side of the movable plate, which is far away from the fixed plate, and the convex plate is perpendicular to the movable plate.
Preferably, the inclined strut and the first column pile are fixed through a connecting plate, the connecting plate is fixed on the side edge of the first column pile through a fixing bolt, and the height of the first column pile is greater than that of the second column pile.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the fixing device is simple in structure, and can fix the first column pile and the second column pile more stably and firmly, so that the firmness of the fixing device is guaranteed.
2. The width that can conveniently adjust retaining structure to make things convenient for retaining structure's use more, make things convenient for people's regulation and use simultaneously, save the intensity of labour of people's operation.
3. Can carry out the effect that blocks to the soil of foundation ditch side through retaining structure to prevent collapsing of the soil property of foundation ditch side, the safety and the use of guarantee device.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a prefabricated assembled elevator shaft foundation pit retaining structure according to an embodiment of the invention;
fig. 2 is a schematic structural view of a soil guard structure according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of the interior of the fixing base according to the embodiment of the invention;
fig. 4 is a schematic structural diagram of a connection seat according to an embodiment of the invention;
FIG. 5 is a schematic structural diagram of a bottom of the connecting socket according to an embodiment of the invention;
FIG. 6 is a schematic structural diagram of a boss according to an embodiment of the present invention;
fig. 7 is a schematic structural view of an electric telescopic rod according to an embodiment of the invention.
In the figure:
1. a foundation pit; 2. a first column pile; 3. a second column pile; 4. a soil retaining structure; 5. bracing; 6. inserting a rod; 7. a fixed seat; 8. a fixing plate; 9. a movable plate; 10. a first motor; 11. a first rotating shaft; 12. a first belt pulley; 13. a transmission belt; 14. a second belt pulley; 15. fixing a sleeve; 16. a slide bar; 17. a slide rail; 18. a first through hole; 19. a second through hole; 20. an electric telescopic rod; 21. a third through hole; 22. a connecting seat; 23. a convex cylinder; 24. a hole; 25. rotating the ring; 26. gear teeth; 27. a worm; 28. a second motor; 29. a second chute; 30. a traveler; 31. a slide plate; 32. a first sliding chute; 33. a fourth through hole; 34. a spacing pin; 35. a third chute; 36. a convex edge; 37. a first supporting column; 38. connecting blocks; 39. a second supporting column; 40. a convex plate; 41. a connecting plate.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
The invention is further described with reference to the following figures and specific examples.
In the first embodiment, as shown in fig. 1 to 7, a prefabricated assembly type elevator shaft foundation pit retaining structure according to an embodiment of the present invention includes a foundation pit 1, a first column pile 2, a second column pile 3 and a soil blocking structure 4 are fixed inside the foundation pit 1, one side of the first column pile 2 is connected with the second column pile 3, the first column pile 2 and the second column pile 3 are fixed by an inclined strut 5, the bottom ends of the first column pile 2 and the second column pile 3 are fixed inside the foundation pit 1 by an inserted link 6, one side of the first column pile 2 away from the second column pile 3 is fixed with the soil blocking structure 4, the soil blocking structure 4 includes a fixed seat 7, a fixed plate 8 and a movable plate 9, one side of the bottom end of the fixed seat 7 is fixed with the fixed plate 8, the bottom end of the fixed seat 7 and the side of the fixed plate 8 are slidably connected with the movable plate 9, the interior of the fixing seat 7 is of a hollow structure, a first motor 10 is fixed on one side edge of the top of the interior of the fixing seat 7, an output shaft of the first motor 10 is connected with a first rotating shaft 11, a first belt pulley 12 is fixed at the bottom end of the first rotating shaft 11, the first belt pulley 12 is connected with a second belt pulley 14 through a driving belt 13, a fixing sleeve 15 is fixed on the driving belt 13, a sliding rod 16 is fixed at the bottom end of the fixing sleeve 15, a sliding rail 17 matched with the sliding rod 16 is arranged at the position, corresponding to the sliding rod 16, of the bottom end of the fixing seat 7, the bottom end of the sliding rod 16 is fixedly connected with one side of the top end of the movable plate 9, a plurality of first through holes 18 are uniformly formed in the surface of the fixing plate 8, a plurality of second through holes 19 are sequentially formed in the bottom of the interior of the first column pile, one end of the electric telescopic rod 20, which is far away from the soil retaining structure 4, penetrates through the second column pile 3, a plurality of through holes three 21 are formed in the position, corresponding to the electric telescopic rod 20, of the bottom inside the second column pile 3, a connecting seat 22 is fixed at a position, corresponding to the electric telescopic rod 20, of the first column pile 2, which is close to one side edge of the second column pile 3, a convex cylinder 23 is fixed in the middle inside the connecting seat 22, a hole 24 is formed in the middle of the convex cylinder 23 in a penetrating manner, the electric telescopic rod 20 penetrates through the hole 24, the inside of the connecting seat 22 and the outer side of the convex cylinder 23 are of a hollow structure, a rotating ring 25 matched with the convex cylinder 23 is sleeved on the outer side of the convex cylinder 23, gear teeth 26 are fixed on the surface of one side of the rotating ring 25, the diameter of the top of the rotating ring 25 is larger than that of the bottom of the rotating ring 25, and a worm 27 matched with, one end of the worm 27 is connected with an output shaft of a second motor 28, the second motor 28 is fixed on the inner side edge of the connecting seat 22, a plurality of second sliding grooves 29 are formed in the top end of the rotating ring 25, sliding columns 30 matched with the second sliding grooves 29 are connected in the second sliding grooves 29 in a sliding mode, sliding plates 31 are fixed on the top ends of the sliding columns 30, first sliding grooves 32 matched with the sliding plates 31 are formed in the positions, corresponding to the sliding plates 31, of the surface of the connecting seat 22, the first sliding grooves 32 are connected with the second sliding grooves 29 in a cross penetrating mode, and the number of the first sliding grooves 32 is three.
In the second embodiment, as shown in fig. 7, both ends of the electric telescopic rod 20 are provided with a plurality of through holes four 33, and a limit pin 34 adapted to the through holes four 33 is connected in the through holes four 33; the two ends of the electric telescopic rod 20 can be fixed more firmly through the four through holes 33 and the limit pin 34.
In a third embodiment, as shown in fig. 6, an annular third sliding groove 35 is formed in the surface of the convex cylinder 23, and a sliding block adapted to the third sliding groove 35 is fixed on the inner surface of the rotating ring 25 at a position corresponding to the third sliding groove 35; the connection between the rotating ring 25 and the convex cylinder 23 is more stable and firm through the sliding grooves three 35 and the sliding blocks.
In a fourth embodiment, as shown in fig. 4 to 5, a plurality of flanges 36 are fixed at the connection positions of the bottom of the connecting seat 22 and the first stud 2, and the flanges 36 are fixed with the first stud 2 through fixing bolts; the connection seat 22 and the first stud 2 can be fixed more firmly through the convex column.
In a fifth embodiment, as shown in fig. 3, the bottom end of the motor i 10 is fixed inside the fixing base 7 through a supporting pillar i 37; the motor I10 can be fixed more stably through the first support column 37, and therefore stability of the device is guaranteed.
In a sixth embodiment, as shown in fig. 3, a connecting shaft is fixed in the middle of the second belt pulley 14, the top end of the connecting shaft is fixedly connected with a connecting block 38, the connecting shaft is connected with the connecting block 38 through a bearing, and one side edge of the bottom end of the connecting block 38 is fixed inside the fixed seat 7 through a second supporting column 39; the second pulley 14 can be fixed more stably through the connecting block 38 and the second supporting column 39.
Seventh, as shown in fig. 2 to 3, the length of the slide rail 17 is the same as that of the movable plate 9; the sliding of the movable plate 9 is facilitated by the slide rail 17, so that the movable plate 9 can be opened.
In an eighth embodiment, as shown in fig. 2, a protruding plate 40 is fixed at a middle portion of a side of the movable plate 9 away from the fixed plate 8, and the protruding plate 40 is perpendicular to the movable plate 9; the convex plate 40 can limit the space between the movable plate 9 and the fixed plate 8.
In a ninth embodiment, as shown in fig. 1, the inclined strut 5 and the first stud 2 are fixed by a connecting plate 41, the connecting plate 41 is fixed on the side of the first stud 2 by a fixing bolt, and the height of the first stud 2 is greater than the height of the second stud 3; the connection and fixation between the inclined strut 5 and the first column pile 2 can be facilitated through the connecting plate 41.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the first column pile 2 and the second column pile 3 can be fixed more stably and firmly through the inserted bar 6 at the bottom end of the first column pile 2 and the second column pile 3, the second column pile 3 can be connected with the first column pile 2 through the inclined strut 5, and meanwhile, a triangular structure can be formed between the first column pile 2 and the second column pile 3 through the electric telescopic rod 20, so that the first column pile 2 and the second column pile 3 are more firmly fixed, the electric telescopic rod 20 can be adjusted according to the distance between the first column pile 2 and the second column pile 3, so that people can use the soil-blocking structure more conveniently, meanwhile, the electric telescopic rod 20 penetrates through the first column pile 2, the second column pile 3 and the fixing plate 8, so that the soil-blocking structure 4 and the first column pile 2 are more stably fixed, the two ends of the electric telescopic rod 20 are fixed through the limiting pin 34, and an external control button can conveniently control the rotation of the motor, the rotation of the motor I10 drives the rotation of the rotating shaft I11 and the belt pulley I12, so as to drive the rotation of the transmission belt 13 and the belt pulley II 14 through the rotation of the belt pulley I12, the rotation of the transmission belt 13 drives the fixed sleeve 15 and the sliding column 30 on the transmission belt 13 to move along with the rotation, so as to drive the movable plate 9 at the bottom end to move along with the sliding column 30, and further the width of the soil retaining structure 4 can be adjusted through the movement of the movable plate 9, so as to more conveniently play a role of soil retaining through the fixed plate 8 and the movable plate 9, and more conveniently use by people, and simultaneously facilitate the operation by people, and when the electric telescopic rod 20 passes through the hole 24 of the connecting seat 22, the rotation of the worm 27 is driven through the rotation of the motor II 28, so as to drive the rotation of the gear teeth 26 and the rotating ring 25 through the rotation of the rotating ring, the sliding of traveller 30 drives the slide 31 on top and slides in spout 32 to the slip through slide 31 can be with the electric telescopic handle 20 fixed more stable in the hole 24, guarantee electric telescopic handle 20's fastness, thereby make the stake 2, the stake 3 between fixed more stable.
The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
Claims (9)
1. The utility model provides a prefabricated pin-connected panel elevartor shaft foundation ditch encloses fender structure, a serial communication port, including foundation ditch (1), the inside of foundation ditch (1) is fixed with post stake (2), post stake two (3) and retaining structure (4), one side of post stake (2) is connected with post stake two (3), post stake (2) with it is fixed through bracing (5) between post stake two (3), just the bottom of post stake (2) and post stake two (3) all is fixed through inserted bar (6) the inside of foundation ditch (1), one side that post stake (2) was kept away from post stake two (3) is fixed with retaining structure (4), retaining structure (4) include fixing base (7), fixed plate (8) and fly leaf (9), the bottom side of fixing base (7) is fixed with fixed plate (8), the bottom of fixing base (7) just is located the side sliding connection of fixed plate (8) has the activity retaining structure (4) Plate (9), the inside of fixing base (7) is hollow out construction, an inside top side of fixing base (7) is fixed with motor one (10), the output shaft and pivot one (11) of motor one (10) are connected, the bottom mounting of pivot one (11) has belt pulley one (12), belt pulley one (12) are connected with belt pulley two (14) through drive belt (13), be fixed with fixed cover (15) on drive belt (13), the bottom mounting of fixed cover (15) has slide bar (16), the bottom of fixing base (7) with slide bar (16) corresponding position seted up with slide bar (16) looks adaptation's slide rail (17), just the bottom of slide bar (16) with top one side fixed connection of fly leaf (9), even a plurality of through-hole one (18) have been seted up on the surface of fixed plate (8), the inner bottom of the first column pile (2) is sequentially provided with a plurality of second through holes (19) from top to bottom, the inner parts of the first through holes (18) and the second through holes (19) are penetrated through by electric telescopic rods (20), one ends, far away from the soil retaining structures (4), of the electric telescopic rods (20) penetrate through the second column pile (3), the inner bottom of the second column pile (3) and the position, corresponding to the electric telescopic rods (20), are provided with a plurality of third through holes (21), the first column pile (2) is close to one side edge of the second column pile (3) and is fixedly provided with a connecting seat (22) at the position, corresponding to the electric telescopic rods (20), the middle part of the inner part of the connecting seat (22) is fixedly provided with a convex cylinder (23), the middle part of the convex cylinder (23) is penetrated through by a hole (24), the electric telescopic rods (20) penetrate through the hole (24), the inner part of the connecting seat (22) and the outer side, which, the outside cover of protruding section of thick bamboo (23) be equipped with change (25) of protruding section of thick bamboo (23) looks adaptation, one side fixed surface of change (25) has teeth of a cogwheel (26), the side of teeth of a cogwheel (26) be connected with worm (27) of teeth of a cogwheel (26) looks adaptation, the one end of worm (27) and the output shaft of motor two (28), motor two (28) are fixed the inside side of connecting seat (22), a plurality of spout two (29) have been seted up on the top of change (25), spout two (29) sliding connection have with traveller (30) of spout two (29) looks adaptation, the top of traveller (30) is fixed with slide (31), the surface of connecting seat (22) with slide (31) corresponding position seted up with spout one (32) of slide (31) looks adaptation.
2. The prefabricated assembled type elevator shaft foundation pit retaining structure as claimed in claim 1, wherein a plurality of through holes four (33) are formed in each end of the electric telescopic rod (20), and a limiting pin (34) matched with the through holes four (33) is connected in each through hole four (33).
3. The prefabricated assembled type elevator shaft foundation pit retaining structure as claimed in claim 1, wherein an annular sliding groove III (35) is formed in the surface of the convex cylinder (23), and a sliding block matched with the sliding groove III (35) is fixed on the inner surface of the rotating ring (25) at a position corresponding to the sliding groove III (35).
4. The prefabricated elevator shaft foundation pit retaining structure as claimed in claim 1, wherein a plurality of convex edges (36) are fixed at the connection positions of the bottoms of the connecting seats (22) and the first column piles (2), and the convex edges (36) are fixed with the first column piles (2) through fixing bolts.
5. The prefabricated elevator shaft foundation pit retaining structure is characterized in that the bottom end of the motor I (10) is fixed inside the fixed seat (7) through a support column I (37).
6. The prefabricated assembled type elevator shaft foundation pit retaining structure as claimed in claim 1, wherein a connecting shaft is fixed to the middle of the second belt pulley (14), the top end of the connecting shaft is fixedly connected with the connecting block (38), the connecting shaft is connected with the connecting block (38) through a bearing, and one side edge of the bottom end of the connecting block (38) is fixed inside the fixed seat (7) through a second supporting column (39).
7. Prefabricated assembled elevator shaft foundation pit retaining structure according to claim 1, characterized in that the length of the sliding rails (17) is the same as the length of the movable plate (9).
8. The prefabricated elevator shaft foundation pit retaining structure of claim 1, wherein a convex plate (40) is fixed in the middle of one side of the movable plate (9) far away from the fixed plate (8), and the convex plate (40) is perpendicular to the movable plate (9).
9. The prefabricated elevator shaft foundation pit retaining structure of claim 1, wherein the inclined strut (5) and the first column pile (2) are fixed through a connecting plate (41), the connecting plate (41) is fixed on the side edge of the first column pile (2) through a fixing bolt, and the height of the first column pile (2) is greater than that of the second column pile (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010329852.0A CN111997061B (en) | 2020-04-24 | 2020-04-24 | Prefabricated pin-connected panel elevartor shaft foundation ditch encloses fender structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010329852.0A CN111997061B (en) | 2020-04-24 | 2020-04-24 | Prefabricated pin-connected panel elevartor shaft foundation ditch encloses fender structure |
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| CN111997061A true CN111997061A (en) | 2020-11-27 |
| CN111997061B CN111997061B (en) | 2022-02-18 |
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| CN108951651A (en) * | 2018-08-08 | 2018-12-07 | 东莞坂盈实业有限责任公司 | A kind of pattern foundation pit supporting structure that stablizing effect is good |
| CN109653158A (en) * | 2018-11-14 | 2019-04-19 | 尹瑜 | A kind of synchronization telescope formula hydraulic engineering baffle device for water |
| CN110644497A (en) * | 2019-09-18 | 2020-01-03 | 长安大学 | Soft soil foundation deep foundation pit supporting device |
| CN110761297A (en) * | 2019-11-04 | 2020-02-07 | 石家庄铁道大学 | Supporting device for construction of civil bridge |
| CN110772702A (en) * | 2019-11-06 | 2020-02-11 | 甘肃省妇幼保健院 | Fixing device of drainage tube for children after ear malformation operation |
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2020
- 2020-04-24 CN CN202010329852.0A patent/CN111997061B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2381365C1 (en) * | 2008-11-11 | 2010-02-10 | Общество с ограниченной ответственностью "Экостройресурс" | Method for restoration of barrow pits for construction of structures |
| CN108951651A (en) * | 2018-08-08 | 2018-12-07 | 东莞坂盈实业有限责任公司 | A kind of pattern foundation pit supporting structure that stablizing effect is good |
| CN109653158A (en) * | 2018-11-14 | 2019-04-19 | 尹瑜 | A kind of synchronization telescope formula hydraulic engineering baffle device for water |
| CN110644497A (en) * | 2019-09-18 | 2020-01-03 | 长安大学 | Soft soil foundation deep foundation pit supporting device |
| CN110761297A (en) * | 2019-11-04 | 2020-02-07 | 石家庄铁道大学 | Supporting device for construction of civil bridge |
| CN110772702A (en) * | 2019-11-06 | 2020-02-11 | 甘肃省妇幼保健院 | Fixing device of drainage tube for children after ear malformation operation |
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| CN111997061B (en) | 2022-02-18 |
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