CN111733818A - Soil sampling device and application construction method thereof - Google Patents
Soil sampling device and application construction method thereof Download PDFInfo
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- CN111733818A CN111733818A CN202010510164.4A CN202010510164A CN111733818A CN 111733818 A CN111733818 A CN 111733818A CN 202010510164 A CN202010510164 A CN 202010510164A CN 111733818 A CN111733818 A CN 111733818A
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- soil sampling
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- steel pipe
- pipe pile
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/08—Removing obstacles
Abstract
The invention relates to a soil sampling device and an application construction method thereof. The soil sampling bin comprises a first end and a second end which are oppositely arranged, the bin door is connected with the second end through a pivot, and the bin door turns towards the interior of the soil sampling bin; the limiting plate is arranged at the second end and used for limiting the bin door to rotate towards the outside of the soil sampling bin. When the soil sampling cabin is used, the soil sampling cabin sinks along the steel pipe pile, the cabin door is opened under the action of soil body extrusion, the soil body in the steel pipe pile enters the soil sampling cabin, the soil sampling cabin continues to sink, the sinking is stopped after the soil sampling elevation designed by the steel pipe pile is reached, then the soil sampling cabin is lifted, the cabin door is closed under the action of self weight of the soil body in the soil sampling cabin at the moment, the soil body is kept in the soil sampling cabin, and finally the soil sampling cabin is lifted out of the steel pipe pile to finish the soil sampling in the steel pipe pile. The soil taking device is convenient to operate and rapid in soil taking, and meets the requirement of civilized construction. In addition, the application and construction method of the soil sampling device is simple and suitable for popularization and application.
Description
Technical Field
The invention relates to the field of building construction, in particular to a soil sampling device and an application construction method thereof.
Background
The steel pipe pile is a thin-wall driven pile, the soil squeezing effect is very small when the pile is sunk, and the steel pipe pile has the advantages of high steel compression strength, high tensile strength, uniform material and good ductility, so that the steel pipe pile after being processed into the steel pipe pile has high rigidity, high bending resistance and high shearing resistance, is high in construction speed, simple in site construction process, easy to control civilized construction, and is a pile type with very outstanding advantages. In recent years, with the continuous improvement of pile driving equipment and pile sinking technology, the application of the steel pipe pile in bridge engineering is increasingly wide, the construction is high in quality and efficiency, the influence on the environment is low, and the active improvement is brought to civilized construction.
The steel pipe pile is used as a pile foundation of a bridge structure and needs to be anchored with a bearing platform, and the common method is that reinforced concrete is adopted to fill a core from the pile top in the steel pipe pile to a range of 6-10m below the pile top, and steel bars are extended to be anchored into the bearing platform to form a common stress system. However, in the actual construction process, the soil taking in the steel pipe pile has certain difficulty, the construction operation space is small, the soil taking depth is large, and no special construction equipment is used for construction, so that the difficulty of soil taking is large, the efficiency is low, and the civilized construction is difficult to guarantee.
Disclosure of Invention
Therefore, it is necessary to provide a soil taking device which is convenient to operate, fast and efficient and can ensure civilized construction and an application construction method thereof, aiming at the problems that the soil taking in the steel pipe pile is difficult to achieve, the efficiency is low, and the civilized construction is difficult to ensure.
An earth-moving apparatus comprising:
the soil sampling bin comprises a first end and a second end which are oppositely arranged;
the bin gate is connected with the second end through a pivot, and the bin gate turns towards the interior of the soil sampling bin;
and the limiting plate is arranged at the second end and used for limiting the bin door to rotate towards the outside of the soil sampling bin.
In one embodiment, the soil sampling device further comprises a first reinforcing ring plate and a second reinforcing ring plate, the first reinforcing ring plate is sleeved on the outer wall of the first end, the second reinforcing ring plate is sleeved on the outer wall of the second end, and the first reinforcing ring plate and the second reinforcing ring plate are both connected with the soil sampling bin.
In one embodiment, the soil sampling bin is in a hollow tubular shape, and the limiting plate is arranged on the inner wall of the soil sampling bin and extends along the circumferential direction of the soil sampling bin.
In one embodiment, the bin gate comprises a first turning plate, a second turning plate and a pin shaft, wherein two ends of the pin shaft are connected with the soil sampling bin, the pin shaft is located between the first turning plate and the second turning plate, and the first turning plate and the second turning plate are rotatably connected with the pin shaft.
In one embodiment, the limiting plates include a first limiting plate and a second limiting plate, the projection of the first flap at the second end at least partially overlaps the first limiting plate, and the projection of the second flap at the second end at least partially overlaps the second limiting plate.
In one embodiment, the first and second limiting plates are symmetrical along the pin axis.
In one embodiment, the soil sampling device further comprises a limiting strip, wherein the limiting strip is arranged on one side, back to the soil sampling bin, of the bin door, and the limiting strip is vertically connected with the pin shaft.
In one embodiment, the vibration hammer is arranged at the first end and is detachably connected with the first end.
In one embodiment, the system further comprises a crane disposed at and removably coupled to the first end.
The application construction method of the soil sampling device comprises the following steps:
after the steel pipe pile is sunk in place, the soil taking bin is lifted and inserted into an orifice of the steel pipe pile;
the soil taking bin sinks along the steel pipe pile under the action of external force, the bin gate is extruded by soil in the steel pipe pile in the descending process, the bin gate is opened, and the soil in the steel pipe pile enters the soil taking bin;
when the soil sampling bin descends to a preset height, the soil sampling bin is lifted, the bin door is closed under the extrusion of soil in the soil sampling bin, and the soil is left in the soil sampling bin;
and lifting the soil sampling bin out of the steel pipe pile to finish soil sampling in the steel pipe pile.
When the soil taking device is used, the soil taking bin is inserted into a steel pipe pile, the soil taking bin sinks along the steel pipe pile under the action of external force, in the descending process, the bin gate is extruded by soil, the bin gate is turned over towards the inside of the soil taking bin, the bin gate is opened, the soil in the steel pipe pile enters the soil taking bin, the soil taking bin sinks continuously, the sinking stops after the soil taking elevation designed by the steel pipe pile is reached, then the soil taking bin is lifted, the bin gate is closed under the action of self weight, the limiting plate limits the outward turning of the bin gate, the soil is kept in the soil taking bin, and finally the soil taking bin is lifted out of the steel pipe pile to finish the soil taking in the steel pipe pile. The soil taking device is convenient to operate and rapid in soil taking, and meets the requirement of civilized construction. In addition, the application and construction method of the soil sampling device is simple and suitable for popularization and application.
Drawings
FIG. 1 is a schematic structural view of an example of a soil sampling device;
FIG. 2 is a schematic view of the structure of the door of the soil sampling device shown in FIG. 1;
fig. 3-8 are step diagrams of an application construction method of the soil sampling device according to an embodiment.
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.
The invention starts from the angle of quickly taking soil in the steel pipe pile, and adopts a steel pipe with a diameter slightly smaller than that of the steel pipe pile to manufacture the soil taking bin, thereby forming the device for quickly taking soil in the steel pipe pile. The soil sampling device of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the soil sampling device 1 of an embodiment includes a soil sampling bin 10, a bin gate 12, and a limit plate 14. The soil sampling bin 10 comprises a first end 100 and a second end 102 which are oppositely arranged, a bin door 12 is pivotally connected with the second end 102, and the bin door 12 is turned towards the interior of the soil sampling bin 10; the limiting plate 14 is disposed at the second end 102, and the limiting plate 14 is used for limiting the rotation of the bin door 12 towards the outside of the soil sampling bin 10.
When the soil sampling device 1 is used, the soil sampling bin 10 is inserted into the steel pipe pile 2, the soil sampling bin 10 sinks along the steel pipe pile 2 under the action of external force, in the descending process, the bin gate 12 is extruded by the soil body 3, the bin gate 12 is turned towards the inside of the soil sampling bin 10, the bin gate 12 is opened, the soil body 3 in the steel pipe pile 2 enters the soil sampling bin 10, the soil sampling bin 10 continues to sink, the sinking is stopped after the soil sampling elevation designed by the steel pipe pile 2 is reached, then the soil sampling bin 10 is lifted, the bin gate 12 is closed under the action of self weight of the soil body 3 in the soil sampling bin 10 at the moment, the limiting plate 14 limits the outward turning of the bin gate 12, the soil body 3 is kept in the soil sampling bin 10, and finally the soil sampling bin 10 is lifted to the steel pipe pile 2, and the soil sampling in the steel pipe pile 2 is completed. The soil sampling device 1 is convenient to operate, can sample soil quickly, and meets the requirement of civilized construction.
The soil sampling bin 10 is inserted into the steel pipe pile 2, and therefore, the outer diameter thereof is slightly smaller than the inner diameter of the steel pipe pile 2. In this embodiment, the soil sampling bin 10 is a Q235 steel pipe with a wall thickness of 12 mm. When soil is taken out, the second end 102 of the soil taking bin 10 faces downwards and is in contact with the soil body 3 in the steel pipe pile 2. The length of the soil sampling bin 10 can be selected according to actual needs, and in order to facilitate the subsequent extraction of the soil sampling bin 10, the length of the soil sampling bin 10 is higher than the designed soil sampling depth of the steel pipe pile 2, that is, when the soil sampling bin 10 reaches the designed soil sampling depth, a part of the soil sampling bin needs to extend out of the steel pipe pile 2, so that the subsequent hoisting is convenient. Therefore, the total length of the soil sampling bin 10 is the designed soil sampling depth of the steel pipe pile 2 plus the part extending out of the steel pipe pile 2.
In addition, as shown in fig. 1, in the present embodiment, the soil sampling device 1 further includes a first reinforcing ring plate 16 and a second reinforcing ring plate 18, the first reinforcing ring plate 16 is sleeved on the outer wall of the first end 100, the second reinforcing ring plate 18 is sleeved on the outer wall of the second end 102, and both the first reinforcing ring plate 16 and the second reinforcing ring plate 18 are connected to the soil sampling bin 10. Because the soil sampling bin 10 can receive the promotion of external force and the extrusion of soil body 3 at the in-process of fetching soil, in order to guarantee the intensity of soil sampling bin 10, prevent to take place to warp at the in-process of fetching soil, consequently, all set up the reinforcing ring board at the upper and lower both ends in soil sampling bin 10. In this embodiment, the first and second stiffening ring plates 16, 18 are each Q235 steel tubes with a wall thickness of 10 mm. The first reinforcing ring plate 16 is welded to the first end 100 of the soil sampling bin 10, and the second reinforcing ring plate 18 is welded to the second end 102. In addition, the heights of the first reinforcement ring plate 16 and the second reinforcement ring plate 18 can be selected according to actual needs, and in the embodiment, the heights of the first reinforcement ring plate 16 and the second reinforcement ring plate 18 are the same and are both 600 mm. When the soil sampling bin 10 reaches the designed soil sampling depth of the steel pipe pile 2, the soil sampling bin 10 surrounded by the first reinforcing ring plate 16 is positioned outside the steel pipe pile 2. That is, the entire length of the soil sampling bin 10 is the designed soil sampling depth of the steel pipe pile 2 plus the height of the first reinforcing ring plate 16.
During the soil sampling process, the second end 102 of the soil sampling bin 10 is in contact with the soil body 3, i.e. the first end 100 is the upper end of the soil sampling bin 10, and the second end 102 is the lower end of the soil sampling bin 10. The bin gate 12 is arranged at the second end 102 of the soil sampling bin 10, and the bin gate 12 is turned towards the interior of the soil sampling bin 10, so that soil 3 can conveniently enter the interior of the soil sampling bin 10 in the soil sampling process. As shown in fig. 1 and fig. 2, in the present embodiment, the bin door 12 includes a first turning plate 120, a second turning plate 122 and a pin 124, two ends of the pin 124 are connected to the soil sampling bin 10, the pin 124 is located between the first turning plate 120 and the second turning plate 122, and the first turning plate 120 and the second turning plate 122 are rotatably connected to the pin 124. The hole is opened on the pipe wall of the soil sampling bin 10, two ends of a pin shaft 124 are arranged in the hole of the pipe wall in a penetrating way, and the first turning plate 120 and the second turning plate 122 are fixed on the pin shaft 124. In the present embodiment, the pin 124 overlaps with the diameter of the soil sampling bin 10, and the first flap 120 and the second flap 122 are symmetrically disposed along the pin 124. The bin door 12 is of a double-leaf opening type, and both the first flap 120 and the second flap 122 are turned towards the inside of the soil sampling bin 10 and move towards each other during soil sampling. In other embodiments, the door 12 may be opened by a single door, and the pin 124 is disposed along the inner wall of the soil sampling bin 10. Specifically, in this embodiment, a hole with a diameter of 60mm is formed in the pipe wall of the second end 102 of the soil sampling bin 10, a pin 124 with a diameter of 55mm is inserted in the hole, a positioning pin hole with a diameter of 21.5 is formed in the pin 124, and an M20 long bolt is used as a positioning pin.
When the soil sampling bin 10 reaches the soil sampling depth designed by the steel pipe pile 2, the soil sampling bin 10 is upwards extracted, at the moment, the bin gate 12 is downwards overturned under the action of the gravity of the soil body 3 in the soil sampling bin 10, and the bin gate 12 is closed, so that the soil body 3 is reserved in the soil sampling bin 10. The limit plate 14 is disposed at the second end 102 of the soil sampling bin 10, and is used for limiting the rotation of the bin door 12 towards the outside of the soil sampling bin 10. In this embodiment, the soil sampling bin 10 is a hollow tube, and the limiting plate 14 is disposed on the inner wall of the soil sampling bin 10 and extends along the circumferential direction of the soil sampling bin 10. The limiting plate 14 is a sheet structure with a certain width, and is arranged along the circumferential direction of the inner wall of the soil sampling bin 10, and is used for preventing the bin door 12 from turning towards the outside of the soil sampling bin 10. The limiting plate 14 can be a steel plate and is welded with the inner wall of the soil sampling bin 10.
Further, as shown in fig. 2, in the present embodiment, the limiting plate 14 includes a first limiting plate 140 and a second limiting plate 142, a projection of the first flap 120 at the second end 102 at least partially overlaps the first limiting plate 140, and a projection of the second flap 122 at the second end 102 at least partially overlaps the second limiting plate 142. The first limiting plate 140 is used for limiting the rotation angle of the first flap 120, and the second limiting plate 142 is used for limiting the rotation angle of the second flap 122. When the bin gate 12 is closed, the edge of the first turning plate 120 overlaps with the first limiting plate 140, and the edge of the second turning plate 122 overlaps with the second limiting plate 142, so as to ensure that the bin gate 12 keeps a closed state under the pressure of the soil body 3 inside the soil sampling bin 10. In addition, in the present embodiment, the first and second stopper plates 140 and 142 are symmetrical along the pin 124. The lengths of the first limiting plate 140 and the second limiting plate 142 may be selected according to actual needs, and are not limited herein.
Referring to fig. 2, in the present embodiment, the soil sampling device 1 further includes a limiting strip, the limiting strip is disposed on a side of the door 12 opposite to the interior of the soil sampling bin 10, and the limiting strip is vertically connected to the pin 124. The combination of the stop strip and the stop plate 14 can better prevent the door 12 from turning outward, and the stop strip is perpendicularly connected to the pin 124 to form a plane with the pin 124, thereby further limiting the turning angle of the door 12. In this embodiment, the number of spacing strip is a plurality of, and a plurality of spacing strips parallel arrangement. The limiting strips are steel strips and are connected with the pin shaft 124 in a welding mode.
After the soil sampling bin 10 is inserted into the orifice of the steel pipe pile 2, the soil sampling bin 10 needs to be lowered along the steel pipe pile 2 by means of external force. In this embodiment, the soil sampling device 1 further includes a vibration hammer 20, and the vibration hammer 20 is disposed at the first end 100 and detachably connected to the first end 100. After the vibration hammer 20 is started, the soil sampling bin 10 can be sunk into the steel pipe pile 2 under the action of the vibration hammer 20. The vibration hammer 20 is detachably connected with the soil sampling bin 10, and when the soil sampling bin 10 reaches a preset soil sampling depth, the vibration hammer 20 is detached. The vibration hammer 20 is provided with a clamping device, and is connected with the soil sampling bin 10 through the clamping device. The vibration hammer 20 is a common construction tool in the art, and the structure thereof is not described herein.
And when the soil sampling bin 10 reaches the designed soil sampling bottom elevation of the steel pipe pile 2, stopping sinking, closing the vibration hammer 20, and detaching the vibration hammer 20. In this embodiment, the soil sampling device 1 further includes a crane 30, and the crane 30 is disposed at the first end 100 and detachably connected to the first end 100. The soil sampling bin 10 can be lifted under the cooperation of the crane 30, so that the soil sampling bin 10 lifts the steel pipe pile 2. The connection mode of the crane 30 and the soil sampling bin 10 is a connection mode commonly used in the art, and is not limited herein.
The application and construction method of the soil sampling device 1 will be described with reference to fig. 1 to 8.
The application and construction method of the soil sampling device 1 comprises the following steps:
step one, as shown in fig. 3 and 4, after the steel pipe pile 2 is driven to the position, the soil sampling bin 10 is lifted and inserted into the hole of the steel pipe pile 2. Wherein, P represents the original ground, and T represents the designed borrowing bottom surface. In this embodiment, the soil sampling bin 10 may be lifted up by means of the vibration hammer 20 or the crane 30, aligned with the opening of the steel pipe pile 2 to prepare for soil sampling, where the bin gate 12 is in a closed state.
And step two, the soil taking bin 10 sinks along the steel pipe pile 2 under the action of external force, the bin gate 12 is extruded by the soil body 3 in the steel pipe pile 2 in the descending process, the bin gate 12 is opened, and the soil body 3 in the steel pipe pile 2 enters the soil taking bin 10. As shown in fig. 5, after the soil sampling bin 10 is inserted into the opening of the steel pipe pile 2, the vibration hammer 20 is turned on to sink the soil sampling bin 10 into the steel pipe pile 2, and the soil sampling bin 10 is moved downward along the steel pipe pile 2 by the vibration hammer 20.
And step three, when the soil sampling bin 10 descends to a preset height, lifting the soil sampling bin 10, closing a bin door 12 under the extrusion of soil 3 in the soil sampling bin 10, and leaving the soil 3 in the soil sampling bin 10. As shown in fig. 6 and 7, after the soil sampling bin 10 sinks to the designed soil sampling bottom elevation T of the steel pipe pile 2, the sinking is stopped, the vibration hammer 20 is closed, the crane 30 is connected to the first end 100 of the soil sampling bin 10, then the soil sampling bin 10 starts to be lifted in cooperation with the crane 30, at this time, the bin gate 12 is automatically closed under the action of the gravity of the soil body 3 in the soil sampling bin 10, and the soil body 3 is left in the soil sampling bin 10.
And step four, lifting the soil sampling bin 10 to the steel pipe pile 2 to finish soil sampling in the steel pipe pile 2. As shown in fig. 8, the soil sampling bin 10 moves out of the steel pipe pile 2 and takes out the soil body 3 in the steel pipe pile 2, so as to realize soil sampling in the steel pipe pile 2.
The soil sampling device 1 is novel in structure, and provides equipment special for sampling soil in the steel pipe pile 2, so that the soil sampling in the steel pipe pile 2 is simpler and more convenient, the soil sampling efficiency is improved, and civilized construction is guaranteed. The application construction method of the soil sampling device 1 is convenient to operate, and the difficult problem of sampling soil in the steel pipe pile 2 is effectively solved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but it should not be understood that several variations and modifications can be made on the premise of the inventive concept, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An earth borrowing device, comprising:
the soil sampling bin comprises a first end and a second end which are oppositely arranged;
the bin gate is connected with the second end through a pivot, and the bin gate turns towards the interior of the soil sampling bin;
and the limiting plate is arranged at the second end and used for limiting the bin door to rotate towards the outside of the soil sampling bin.
2. The soil sampling device of claim 1, further comprising a first reinforcing ring plate and a second reinforcing ring plate, wherein the first reinforcing ring plate is sleeved on the outer wall of the first end, the second reinforcing ring plate is sleeved on the outer wall of the second end, and both the first reinforcing ring plate and the second reinforcing ring plate are connected with the soil sampling bin.
3. The soil sampling device of claim 1, wherein the soil sampling bin is hollow and tubular, and the limiting plate is arranged on the inner wall of the soil sampling bin and extends along the circumferential direction of the soil sampling bin.
4. The soil sampling device of claim 3, wherein the bin gate comprises a first turning plate, a second turning plate and a pin, two ends of the pin are connected with the soil sampling bin, the pin is located between the first turning plate and the second turning plate, and the first turning plate and the second turning plate are rotatably connected with the pin.
5. The soil sampling device of claim 4 wherein the limiting plates comprise a first limiting plate and a second limiting plate, a projection of the first flap at the second end at least partially overlaps the first limiting plate, and a projection of the second flap at the second end at least partially overlaps the second limiting plate.
6. The soil sampling device of claim 5, wherein the first and second limiting plates are symmetrical along the pin.
7. The soil sampling device of claim 4, further comprising a limiting strip, wherein the limiting strip is arranged on one side of the bin gate, which faces away from the interior of the soil sampling bin, and the limiting strip is vertically connected with the pin shaft.
8. The earth sampling device of claim 1, further comprising a vibratory hammer disposed at and removably coupled to the first end.
9. The earthmoving device of claim 1, further comprising a crane disposed at and removably connected to said first end.
10. An application construction method of the soil sampling device according to any one of claims 1 to 9, characterized by comprising the following steps:
after the steel pipe pile is sunk in place, the soil taking bin is lifted and inserted into an orifice of the steel pipe pile;
the soil taking bin sinks along the steel pipe pile under the action of external force, the bin gate is extruded by soil in the steel pipe pile in the descending process, the bin gate is opened, and the soil in the steel pipe pile enters the soil taking bin;
when the soil sampling bin descends to a preset height, the soil sampling bin is lifted, the bin door is closed under the extrusion of soil in the soil sampling bin, and the soil is left in the soil sampling bin;
and lifting the soil sampling bin out of the steel pipe pile to finish soil sampling in the steel pipe pile.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010510164.4A CN111733818A (en) | 2020-06-08 | 2020-06-08 | Soil sampling device and application construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010510164.4A CN111733818A (en) | 2020-06-08 | 2020-06-08 | Soil sampling device and application construction method thereof |
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| CN111733818A true CN111733818A (en) | 2020-10-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045279A (en) * | 2022-06-07 | 2022-09-13 | 山东中铁路桥工程有限公司 | Soil sampler for cleaning sundries in steel casing |
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| CN110195436A (en) * | 2019-05-24 | 2019-09-03 | 中交第四航务工程局有限公司 | A kind of device quickly drawn except stake heart sand |
| CN110258564A (en) * | 2019-05-24 | 2019-09-20 | 中国港湾工程有限责任公司 | A kind of construction method of tubular pole placer |
| CN210068035U (en) * | 2019-07-08 | 2020-02-14 | 王涛 | Slag removing barrel for pile foundation construction |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195436A (en) * | 2019-05-24 | 2019-09-03 | 中交第四航务工程局有限公司 | A kind of device quickly drawn except stake heart sand |
| CN110258564A (en) * | 2019-05-24 | 2019-09-20 | 中国港湾工程有限责任公司 | A kind of construction method of tubular pole placer |
| CN210068035U (en) * | 2019-07-08 | 2020-02-14 | 王涛 | Slag removing barrel for pile foundation construction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115045279A (en) * | 2022-06-07 | 2022-09-13 | 山东中铁路桥工程有限公司 | Soil sampler for cleaning sundries in steel casing |
| CN115045279B (en) * | 2022-06-07 | 2024-01-30 | 山东中铁路桥工程有限公司 | Soil sampler for cleaning sundries in steel protective cylinder |
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Application publication date: 20201002 |
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