CN111101500A - Rammer for construction site - Google Patents
Rammer for construction site Download PDFInfo
- Publication number
- CN111101500A CN111101500A CN202010023229.2A CN202010023229A CN111101500A CN 111101500 A CN111101500 A CN 111101500A CN 202010023229 A CN202010023229 A CN 202010023229A CN 111101500 A CN111101500 A CN 111101500A
- Authority
- CN
- China
- Prior art keywords
- ramming
- bulldozing
- soil
- board
- turntable
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/815—Blades; Levelling or scarifying tools
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/815—Blades; Levelling or scarifying tools
- E02F3/8152—Attachments therefor, e.g. wear resisting parts, cutting edges
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
- E02F5/32—Rippers
Abstract
The invention discloses a rammer for construction sites, which comprises a turntable, a base, a cab and ramming mechanisms, wherein the bottom of the base is respectively provided with a front driving wheel and a rear driving wheel, the upper end surface of the base is provided with the turntable, the cab is fixed on the turntable, the surfaces of the front end part and the rear end part of the turntable are respectively and vertically provided with a left upright post and a right upright post, one side of the left upright post is fixedly provided with a left cross beam through a bolt, one side of the right upright post is fixedly provided with a right cross beam through a bolt, and the ramming mechanisms are arranged into two groups and respectively comprise a first ramming mechanism and a second ramming mechanism, wherein the first ramming mechanism is arranged below the left cross beam, the second ramming mechanism is arranged below the right cross beam, and the ramming machine also comprises a first bulldozing component and a second bulldozing component. And the planeness of the rammed earth ground can be improved.
Description
Technical Field
The invention relates to the technical field of construction machinery, in particular to a rammer for a construction site.
Background
The rammer is a compaction machine for compacting backfill soil layer by using the action of impact and impact vibration. In the road construction process, the earth rammer is one of indispensable equipment, tamps the road foundation through the earth rammer, avoids the road to appear collapsing because of the ground is not real.
The existing soil rammer has single structure and function, only can realize soil ramming operation, and cannot effectively tamp soil at a soil pile to cause uneven ground, so that the existing soil rammer is necessarily improved.
Disclosure of Invention
The invention aims to provide a rammer for a construction site, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a rammer for construction site comprises a rotary table, a base, a cab and a ramming mechanism, wherein the bottom of the base is respectively provided with a front driving wheel and a rear driving wheel, a driving motor which is in driving connection with the front driving wheel and the rear driving wheel is arranged in the base, a turntable is arranged on the upper end surface of the base, the cab is fixed on a turntable, the surfaces of the front end part and the rear end part of the turntable are respectively and vertically provided with a left upright post and a right upright post, a left cross beam is fixedly arranged on one side of the left upright post through a bolt, a right cross beam is fixedly arranged on one side of the right upright post through a bolt, the ramming mechanisms are arranged in two groups, namely a first ramming mechanism and a second ramming mechanism respectively, the first ramming mechanism is arranged below the left cross beam, the second ramming mechanism is arranged below the right cross beam and further comprises a first bulldozing assembly and a second bulldozing assembly, and the first bulldozing assembly and the second bulldozing assembly are arranged on two sides of the rotary table respectively.
Preferably, the first ramming mechanism comprises a first lifting cylinder, a first connecting column and a first ramming plate, a first high-strength spring body is installed between the upper end part of the first lifting cylinder and the lower end face of the left cross beam, the lower end part of the first lifting cylinder is connected with the end part of the first connecting column, the lower end part of the first connecting column is connected with the center of the upper end face of the first ramming plate, and the first connecting column is connected with the first ramming plate in a welding manner.
Preferably, the second ramming mechanism comprises a second lifting cylinder, a second connecting column and a second ramming plate, a second high-strength spring body is installed between the upper end face of the second lifting cylinder and the lower end face of the right cross beam, the lower end of the second lifting cylinder is connected with the end part of the second connecting column, the lower end of the second connecting column is connected with the center of the upper end face of the second ramming plate, and the second connecting column is connected with the second ramming plate in a welding mode.
Preferably, the first bulldozing component and the second bulldozing component are symmetrically arranged and have completely consistent structures, the bulldozing component comprises a bulldozing plate and a mounting support, the surface of the bulldozing plate is of an arc-shaped structure, the bulldozing plate is fixed on the mounting support, the push plate is mounted on one side of the bottom of the mounting support, a telescopic oil cylinder is mounted between the mounting support and the side wall of the turntable, and a plurality of bulldozing teeth are uniformly distributed on the lower end face of the bulldozing plate.
Preferably, a first supporting beam is arranged between the left cross beam and the left upright column, a second supporting beam is arranged between the right cross beam and the right upright column, a first sling is arranged between the outer end of the left cross beam and the top end of the left upright column, and a second sling is arranged between the outer end of the right cross beam and the top end of the right upright column.
Preferably, first rammed earth board and second rammed earth board structure are identical completely, include the board body, the board body adopts the steel sheet to make, the arc structure is buckled into at this body both ends of board, this body up end welding of board has horizontal strengthening rib and vertical strengthening rib, just horizontal strengthening rib and vertical strengthening rib vertical cross arrangement.
Preferably, the carousel includes upper mounting plate and lower platform, the upper mounting plate inboard is opened there is first recess, the platform inboard is opened down has the second recess that sets up with first recess symmetry, open at first recess middle part has first shaft hole, open at second recess middle part has the second shaft hole, install the rotation axis between first shaft hole and the second shaft hole, the rotation axis is connected with base internal rotation motor transmission.
Preferably, the using method comprises the following steps:
A. firstly, an operator drives the rammer to move to an area to be rammed;
B. then, controlling a rotating motor to work, and driving a turntable to rotate by the rotating motor so as to adjust the rammed earth position;
C. controlling a telescopic oil cylinder to work, controlling a bulldozing assembly to work by the telescopic oil cylinder, and pushing the bulldozing assembly to a ramming position after loosening soil in a soil pile;
D. then controlling the lifting oil cylinder to work, and controlling the ramming plate to move downwards by the lifting oil cylinder to perform ramming operation;
E. and C, after the soil is tamped, adjusting the rotation of the turntable again, adjusting the tamping position, repeating the step C and the step D, and tamping the soil in a plurality of areas.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention has novel structural design, is redesigned and improved on the basis of the existing rammer, has the functions of rotation, bidirectional bulldozing and bidirectional ramming, effectively improves the ramming efficiency and can improve the smoothness of rammed earth ground.
(2) According to the invention, the ramming mechanism comprises a lifting oil cylinder, a connecting column and a ramming plate, wherein a high-strength spring body is arranged between the upper end part of the lifting oil cylinder and the lower end surface of the cross beam, the lower end part of the lifting oil cylinder is connected with the end part of the connecting column, the lower end part of the connecting column is connected with the center of the upper end surface of the ramming plate, and the connecting column is welded with the ramming plate. Adopt this structure, can play the cushioning effect in ramming earth, effectual protection ramming earth board, in addition, the ramming earth board structural strength who adopts is high, and surface welded strengthening rib can effectually prevent that it from appearing the deformation phenomenon.
(3) According to the soil ramming assembly, the adopted soil ramming assembly can be used for ramming the soil pile protruding out of the ground, the pushing teeth arranged at the bottom can be used for loosening the soil, when the soil ramming assembly works, soil is pushed and loosened while the soil is pushed to a rammed soil area, the ramming strength can be improved, and meanwhile the smoothness of the rammed soil ground can be guaranteed.
(4) The invention adopts the turntable to flexibly rotate, can realize 360-degree arbitrary driving rotation, can rotate at any angle according to the operation requirement, and further improves the soil tamping efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a dozing assembly of the present invention;
FIG. 3 is a top plan view of the ramming earth plate of the present invention;
FIG. 4 is a schematic view of the turntable structure of the present invention;
FIG. 5 is a flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-5, the present invention provides a technical solution: a rammer for a construction site comprises a rotary table 1, a base 2, a cab 3 and a ramming mechanism, wherein the bottom of the base 2 is respectively provided with a front driving wheel 4 and a rear driving wheel 5, and a driving motor 6 which is in driving connection with the front driving wheel 4 and the rear driving wheel 5 is arranged in the base 2, wherein the driving motor can respectively drive the front driving wheel and the rear driving wheel to work; the utility model discloses a soil compacting machine, including base 2, driver's cabin 3, carousel, bolt fixed mounting left crossbeam 9, right stand 8, rammer mechanism, first rammer mechanism and second rammer mechanism, first rammer mechanism sets up in left crossbeam 9 below, second rammer mechanism sets up in right crossbeam 10 below, still includes first bull-dozing subassembly and second bull-dozing subassembly, first bull-dozing subassembly and second bull-dozing subassembly set up respectively in 1 both sides of carousel, the carousel can be driven to the carousel and rotate by driving the driver's cabin, 1 front end of carousel and rear end surface respectively install left stand 7 and right stand 8 perpendicularly, bolt fixed mounting left crossbeam 9 is passed through to left stand 7 one side, bolt fixed mounting right crossbeam 10 is passed through to right stand 8 one side, rammer mechanism sets up two sets of, is first rammer mechanism and second bull.
According to the invention, the first ramming mechanism comprises a first lifting oil cylinder 11, a first connecting column 12 and a first ramming plate 13, a first high-strength spring body 14 is arranged between the upper end part of the first lifting oil cylinder 11 and the lower end surface of the left cross beam 9, the lower end part of the first lifting oil cylinder 11 is connected with the end part of the first connecting column 12, the lower end part of the first connecting column 12 is connected with the center of the upper end surface of the first ramming plate 13, and the first connecting column 12 is connected with the first ramming plate 13 in a welding manner; the second ramming mechanism comprises a second lifting cylinder 15, a second connecting column 16 and a second ramming plate 17, a second high-strength spring body 18 is installed between the end faces of the upper end portion of the second lifting cylinder 15 and the lower end face of the right cross beam 10, the end portion of the second connecting column 16 is connected to the lower end portion of the second lifting cylinder 15, the end portion of the second connecting column 16 is connected to the center of the upper end face of the second ramming plate 17, and the second connecting column 16 is connected with the second ramming plate 17 in a welding mode. Adopt this structure, can play the cushioning effect in ramming earth, effectual protection ramming earth board, in addition, the ramming earth board structural strength who adopts is high, and surface welded strengthening rib can effectually prevent that it from appearing the deformation phenomenon.
The first bulldozing component and the second bulldozing component are symmetrically arranged and have completely consistent structures, the bulldozing component comprises a bulldozing plate 19 and a mounting bracket 20, the surface of the bulldozing plate 19 is of an arc structure, the bulldozing plate 19 is fixed on the mounting bracket 20, a push plate 21 is mounted on one side of the bottom of the mounting bracket 20, a telescopic oil cylinder 21 is mounted between the mounting bracket 20 and the side wall of the turntable 1, and a plurality of bulldozing teeth 22 are uniformly distributed on the lower end face of the bulldozing plate 19. According to the soil ramming assembly, the adopted soil ramming assembly can be used for ramming the soil pile protruding out of the ground, the pushing teeth arranged at the bottom can be used for loosening the soil, when the soil ramming assembly works, soil is pushed and loosened while the soil is pushed to a rammed soil area, the ramming strength can be improved, and meanwhile the smoothness of the rammed soil ground can be guaranteed.
According to the invention, a first support beam 23 is arranged between the left cross beam 9 and the left upright post 7, a second support beam 24 is arranged between the right cross beam 10 and the right upright post 8, a first sling 25 is arranged between the outer end of the left cross beam 9 and the top end of the left upright post 7, and a second sling 26 is arranged between the outer end of the right cross beam 10 and the top end of the right upright post 8. Wherein, the stability of crossbeam can be improved to the supporting beam and the hoist cable that set up, and then has improved the stability of ramming the native mechanism, has improved work efficiency.
In addition, in the invention, the first rammed earth plate 13 and the second rammed earth plate 17 have completely identical structures, and comprise a plate body 27, wherein the plate body 27 is made of a steel plate, two ends of the plate body 27 are bent into an arc-shaped structure, a transverse reinforcing rib 28 and a longitudinal reinforcing rib 29 are welded on the upper end surface of the plate body 27, and the transverse reinforcing rib 28 and the longitudinal reinforcing rib 29 are arranged in a vertical and crossed manner. The rammed earth plate adopted by the invention has high structure strength, is not easy to wear and deform and has long service life.
In addition, in the invention, the turntable 1 comprises an upper platform 30 and a lower platform 31, a first groove 32 is formed in the inner side of the upper platform 30, a second groove 33 symmetrically arranged with the first groove 32 is formed in the inner side of the lower platform 31, a first shaft hole 34 is formed in the middle of the first groove 32, a second shaft hole 35 is formed in the middle of the second groove 33, a rotating shaft 36 is installed between the first shaft hole 34 and the second shaft hole 35, and the rotating shaft 36 is in transmission connection with the rotating motor in the base 2. The invention adopts the turntable to flexibly rotate, can realize 360-degree arbitrary driving rotation, can rotate at any angle according to the operation requirement, and further improves the soil tamping efficiency.
The working principle is as follows: the using method of the invention comprises the following steps:
A. firstly, an operator drives the rammer to move to an area to be rammed;
B. then, controlling a rotating motor to work, and driving a turntable to rotate by the rotating motor so as to adjust the rammed earth position;
C. controlling a telescopic oil cylinder to work, controlling a bulldozing assembly to work by the telescopic oil cylinder, and pushing the bulldozing assembly to a ramming position after loosening soil in a soil pile;
D. then controlling the lifting oil cylinder to work, and controlling the ramming plate to move downwards by the lifting oil cylinder to perform ramming operation;
E. and C, after the soil is tamped, adjusting the rotation of the turntable again, adjusting the tamping position, repeating the step C and the step D, and tamping the soil in a plurality of areas.
In conclusion, the invention has novel structural design, is redesigned and improved on the basis of the existing soil rammer, has the functions of rotation, bidirectional bulldozing and bidirectional ramming, effectively improves the ramming efficiency and can improve the smoothness of rammed soil ground.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a building site rammer compactor, includes carousel (1), base (2), driver's cabin (3) and rammer mechanism, its characterized in that: the soil compacting machine is characterized in that a front driving wheel (4) and a rear driving wheel (5) are respectively installed at the bottom of the base (2), a driving motor (6) which is connected with the front driving wheel (4) and the rear driving wheel (5) in a driving mode is installed in the base (2), a turntable (1) is installed on the upper end face of the base (2), the cab (3) is fixed on the turntable (1), a left stand column (7) and a right stand column (8) are respectively and vertically installed on the front end portion and the rear end portion of the turntable (1), a left cross beam (9) is fixedly installed on one side of the left stand column (7), a right cross beam (10) is fixedly installed on one side of the right stand column (8), the soil compacting mechanisms are arranged in two groups and are respectively a first soil compacting mechanism and a second soil compacting mechanism, the first soil compacting mechanism is arranged below the left cross beam (9), the second soil compacting mechanism is arranged below the right, still include first bulldozing subassembly and second bulldozing subassembly, first bulldozing subassembly and second bulldozing subassembly set up respectively in carousel (1) both sides.
2. The construction site tamper according to claim 1, wherein: first ramming earth mechanism includes first lift cylinder (11), first spliced pole (12), first ramming earth board (13), install first high strength spring body (14) between first lift cylinder (11) upper end and left crossbeam (9) lower terminal surface, tip connection first spliced pole (12) tip under first lift cylinder (11), tip connection first ramming earth board (13) up end center under first spliced pole (12), just first spliced pole (12) and first ramming earth board (13) welded connection.
3. The construction site tamper according to claim 1, wherein: the second ramming mechanism comprises a second lifting cylinder (15), a second connecting column (16) and a second ramming plate (17), a second high-strength spring body (18) is installed between the upper end portion of the second lifting cylinder (15) and the lower end face of the right cross beam (10), the lower end portion of the second lifting cylinder (15) is connected with the end portion of the second connecting column (16), the lower end portion of the second connecting column (16) is connected with the center of the upper end face of the second ramming plate (17), and the second connecting column (16) is connected with the second ramming plate (17) in a welding mode.
4. The construction site tamper according to claim 1, wherein: first bull-dozing subassembly and second bull-dozing subassembly symmetry set up, and the structure is unanimous completely, including bulldozing board (19), installing support (20), bulldozing board (19) surface is the arc structure, bulldozing board (19) are fixed on installing support (20), push pedal (21) are installed in installing support (20) frame bottom one side, install flexible hydro-cylinder (21) between installing support (20) and carousel (1) lateral wall, the terminal surface equipartition has a plurality of bull-dozing teeth (22) under bulldozing board (19).
5. The construction site tamper according to claim 1, wherein: install first supporting beam (23) between left crossbeam (9) and left stand (7), install second supporting beam (24) between right crossbeam (10) and right stand (8), install first hoist cable (25) between left crossbeam (9) outer tip and left stand (7) top, install second hoist cable (26) between right crossbeam (10) outer tip and right stand (8) top.
6. The construction site tamper according to claim 1, wherein: first rammed earth board (13) and second rammed earth board (17) structure are identical completely, include board body (27), board body (27) adopt the steel sheet to make, bend into the arc structure at board body (27) both ends, board body (27) up end welding has horizontal strengthening rib (28) and vertical strengthening rib (29), just horizontal strengthening rib (28) and vertical strengthening rib (29) vertical cross setting.
7. The construction site tamper according to claim 1, wherein: carousel (1) includes platform (30) and lower platform (31), it has first recess (32) to open to go up platform (30) inboard, platform (31) inboard is opened down has second recess (33) that sets up with first recess (32) symmetry, open at first recess (32) middle part has first shaft hole (34), second recess (33) middle part is opened has second shaft hole (35), install rotation axis (36) between first shaft hole (34) and second shaft hole (35), rotation axis (36) are connected with base (2) internal rotation motor transmission.
8. The use method of the construction site tamper of claim 1 is realized by the following steps: the using method comprises the following steps:
A. firstly, an operator drives the rammer to move to an area to be rammed;
B. then, controlling a rotating motor to work, and driving a turntable to rotate by the rotating motor so as to adjust the rammed earth position;
C. controlling a telescopic oil cylinder to work, controlling a bulldozing assembly to work by the telescopic oil cylinder, and pushing the bulldozing assembly to a ramming position after loosening soil in a soil pile;
D. then controlling the lifting oil cylinder to work, and controlling the ramming plate to move downwards by the lifting oil cylinder to perform ramming operation;
E. and C, after the soil is tamped, adjusting the rotation of the turntable again, adjusting the tamping position, repeating the step C and the step D, and tamping the soil in a plurality of areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023229.2A CN111101500B (en) | 2020-01-09 | 2020-01-09 | Rammer for construction site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023229.2A CN111101500B (en) | 2020-01-09 | 2020-01-09 | Rammer for construction site |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111101500A true CN111101500A (en) | 2020-05-05 |
| CN111101500B CN111101500B (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010023229.2A Active CN111101500B (en) | 2020-01-09 | 2020-01-09 | Rammer for construction site |
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| Country | Link |
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| CN (1) | CN111101500B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111691393A (en) * | 2020-06-22 | 2020-09-22 | 长江师范学院 | Saline soil foundation treatment device |
| CN111996998A (en) * | 2020-08-25 | 2020-11-27 | 杨瑞达 | Channel construction equipment |
| CN112030941A (en) * | 2020-08-31 | 2020-12-04 | 广东劲拓建设工程有限公司 | Multifunctional cement stirring soil pile planting machine |
| CN113186913A (en) * | 2021-05-19 | 2021-07-30 | 靳鸿喜 | Fixed point pile tamping device for land management |
| CN113605354A (en) * | 2021-08-23 | 2021-11-05 | 深圳市天健坪山建设工程有限公司 | Soft soil foundation treatment device and method |
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| CN111996998A (en) * | 2020-08-25 | 2020-11-27 | 杨瑞达 | Channel construction equipment |
| CN111996998B (en) * | 2020-08-25 | 2022-01-14 | 安徽正森建筑工程有限公司 | Channel construction equipment |
| CN112030941A (en) * | 2020-08-31 | 2020-12-04 | 广东劲拓建设工程有限公司 | Multifunctional cement stirring soil pile planting machine |
| CN113186913A (en) * | 2021-05-19 | 2021-07-30 | 靳鸿喜 | Fixed point pile tamping device for land management |
| CN113605354A (en) * | 2021-08-23 | 2021-11-05 | 深圳市天健坪山建设工程有限公司 | Soft soil foundation treatment device and method |
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| CN111101500B (en) | 2021-08-13 |
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Effective date of registration: 20221202 Address after: 266100 27th floor, building 1, 28 Miaoling Road, Laoshan District, Qingdao City, Shandong Province Patentee after: QINGDAO HAIDE ENGINEERING GROUP Co.,Ltd. Address before: Room 416, No.42, Guangzhou road, Nantong Economic and Technological Development Zone, Jiangsu 226000 Patentee before: Hongcheng electronic industry (Nantong) Co.,Ltd. |