CN114790747B - Positioning mechanism for supporting deep foundation pit of steel sheet pile and mounting device thereof - Google Patents
Positioning mechanism for supporting deep foundation pit of steel sheet pile and mounting device thereof Download PDFInfo
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- CN114790747B CN114790747B CN202210497621.XA CN202210497621A CN114790747B CN 114790747 B CN114790747 B CN 114790747B CN 202210497621 A CN202210497621 A CN 202210497621A CN 114790747 B CN114790747 B CN 114790747B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 124
- 239000010959 steel Substances 0.000 title claims abstract description 124
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 1
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 210000001503 joint Anatomy 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
- E02D5/08—Locking forms; Edge joints; Pile crossings; Branch pieces
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The application discloses a positioning mechanism for supporting a deep foundation pit of a steel sheet pile and a mounting device thereof, which belong to the technical field of building construction and are used for mounting the steel sheet pile, and the positioning mechanism comprises a positioning base, positioning grooves and positioning reinforcing ribs, wherein the positioning base is horizontally paved in the deep foundation pit, the positioning grooves are distributed along the length direction of the positioning base, and the shape of the positioning grooves is the same as the section shape of the steel sheet pile; one end of the positioning reinforcing rib is fixed on the positioning base, and the other end of the positioning reinforcing rib extends in a direction away from the positioning base; the positioning reinforcing ribs are arranged in the region formed by the positioning grooves in a separated mode and are arranged in pairs, and the positioning reinforcing ribs are positioned in the steel sheet pile after the steel sheet pile is inserted into the positioning grooves. In view of the technical scheme, the steel sheet pile splicing device can be used for completing rapid splicing of the steel sheet pile, so that the splicing difficulty of the steel sheet pile is reduced, and the splicing efficiency is improved.
Description
Technical Field
The application belongs to the technical field of building construction, and particularly relates to a positioning mechanism for supporting a steel sheet pile deep foundation pit and an installation device thereof.
Background
The steel sheet pile cofferdam is the most commonly used sheet pile cofferdam, steel sheet piles are profile steel with locking openings, and are commonly provided with Larsen type, rake Mo Na type and the like, and the steel sheet piles can be spliced into cofferdams with various shapes according to the needs and can be reused for multiple times, so that the steel sheet pile cofferdam has wide application.
At present, when assembling the steel sheet pile, use the loop wheel machine to hoist the steel sheet pile more to make the fore shaft of the steel sheet pile that is being installed aim at its below and install the steel sheet pile that completes, loop wheel machine control steel sheet pile moves down and accomplishes the concatenation of steel sheet pile, but because the fore shaft of steel sheet pile is less, be difficult to observe, lead to the process of aligning the fore shaft to waste time and energy, need constructor to adjust, increased the construction degree of difficulty, reduced the efficiency of construction.
Therefore, how to quickly splice the steel sheet piles, reduce the splicing difficulty of the steel sheet piles, and improve the splicing efficiency becomes a technical problem to be solved by the technicians in the field.
Disclosure of Invention
The application aims to provide a positioning mechanism for supporting a steel sheet pile deep foundation pit and a mounting device thereof, which can be used for rapidly splicing the steel sheet pile, reduce the splicing difficulty of the steel sheet pile and improve the splicing efficiency.
In order to achieve the above purpose, the application is realized by the following technical scheme:
a positioning mechanism for steel sheet pile deep basal pit support, its characterized in that: the positioning base is horizontally paved in a deep foundation pit, the positioning grooves are distributed along the length direction of the positioning base, and the shape of the positioning grooves is the same as the section shape of the steel sheet pile; one end of the positioning reinforcing rib is fixed on the positioning base, and the other end of the positioning reinforcing rib extends in a direction away from the positioning base; the positioning reinforcing ribs are arranged in the region formed by the positioning grooves in a separated mode and are arranged in pairs, and the positioning reinforcing ribs are positioned in the steel sheet pile after the steel sheet pile is inserted into the positioning grooves.
Furthermore, the positioning groove comprises a main groove and a locking groove, wherein the locking groove is positioned at two ends of the main groove and is communicated with the main groove, and the adjacent positioning grooves are communicated through the locking groove.
Further, the main groove is of a U-shaped notch structure, and the locking notch groove is formed by a notch structure bent towards the outer side of the U-shaped structure and gradually approaches to two sides of the U-shaped notch structure in the bending process; the positioning reinforcing ribs are located at the corner positions of the U-shaped structure of the main groove, and are attached to the steel sheet piles after the steel sheet piles are inserted into the positioning grooves.
Further, a plurality of supporting ribs are distributed among the positioning reinforcing ribs, and two ends of the positioning supporting piece are fixedly connected with the positioning reinforcing ribs at corresponding positions respectively; and supporting ribs between two adjacent groups of positioning reinforcing ribs on the positioning base are arranged in a staggered manner in the vertical direction.
Furthermore, a plurality of foundation bolt holes are uniformly distributed on the positioning base, and the foundation bolt holes are fixed in the deep foundation pit through fasteners.
Further, the foundation bolt hole is located outside the area surrounded by the locating groove and the locating base, a hole expansion is arranged at the top of the foundation bolt hole, and the hole diameter of the hole expansion is larger than that of the foundation bolt.
The device for installing the steel sheet pile comprises a movable machine body, a movable frame and a clamping frame, wherein a hanging frame is installed at the top end of the movable machine body, the movable frame is of a telescopic structure, and two ends of the movable frame are respectively connected with the hanging frame and the clamping frame; the clamping frame is used for clamping the steel sheet pile, a pushing component is connected between the clamping frame and the movable frame, and the pushing component pushes the clamping frame to move downwards.
Further, the movable frame comprises a fixed rod, a middle rod and a movable rod, wherein the fixed rod, the middle rod and the movable rod are hollow rod bodies, one end of the fixed rod is connected with a hanging bracket, the middle rod is sleeved on the fixed rod, the movable rod is sleeved on the middle rod, and the bottom end of the movable rod is connected with a clamping frame.
Further, the clamping frame comprises a clamping part and a locking part, wherein the clamping part is of an inverted U-shaped structure and is connected with the movable frame, and the locking part is positioned on the outer wall of the clamping part.
Further, the locking part is a locking bolt.
Compared with the prior art, the application has the beneficial effects that:
the positioning mechanism is effectively linked and matched with the mounting mechanism, so that stable and rapid assembly of the steel sheet pile is realized, the assembly difficulty of the steel sheet pile in the construction process is reduced, the efficiency of assembling the steel sheet pile is improved, and constructors can realize assembly of the lock catches with the assistance of the positioning grooves, the positioning base and the positioning reinforcing ribs when assembling the steel sheet pile, thereby avoiding the situation that the steel sheet pile is misplaced during assembly.
Drawings
FIG. 1 is a schematic view of a positioning structure according to the present application.
Fig. 2 is a partial enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic view of the construction of the steel sheet pile assembly of the present application.
Fig. 4 is a schematic structural view of the positioning reinforcing rib in the present application.
Fig. 5 is a schematic view of a construction for installing a steel sheet pile according to the present application.
Fig. 6 is a schematic diagram of another construction for installing steel sheet piles.
Fig. 7 is a partial enlarged view of a portion B in fig. 6.
In the figure: 100. positioning a base; 101. a foundation bolt hole; 200. a positioning groove; 201. a main groove; 202. a locking notch groove; 300. positioning reinforcing ribs; 301. a support rib; 400. a moving body; 500. a hanging bracket; 600. a movable frame; 601. a fixed rod; 602. an intermediate lever; 603. a movable rod; 604. a limiting plate; 700. a clamping frame; 701. a clamping part; 702. a locking part; 800. a pushing assembly; 900. a winder; 901. a wire rope.
Detailed Description
The technical scheme of the application is further described and illustrated below by combining with the embodiment. In describing in detail, references to orientation terms, including but not limited to "upper, lower, left, right," are merely intended to facilitate understanding of the present application by those skilled in the art in light of the visual orientation illustrated in the accompanying drawings. The terms "mounted," "connected," and "connected" are to be construed broadly as the terms used herein, unless otherwise specifically defined and defined, and as such, the terms used herein should be construed in a manner consistent with the understanding of those terms used herein by those of ordinary skill in the art.
As shown in fig. 1 to 4, a positioning mechanism for supporting a deep foundation pit of a steel sheet pile comprises a positioning base 100 placed at the bottom of the deep foundation pit and horizontally arranged, wherein the positioning base 100 extends in the horizontal direction. The positioning base 100 is of a hollow structure, a plurality of positioning grooves 200 are machined on the top surface of the positioning base, and the positioning grooves 200 are distributed in the length direction of the positioning foundation pit 100. The positioning groove 200 is fixedly connected with a positioning reinforcing rib 300 in an area surrounded by the positioning foundation pit 100, and the positioning reinforcing rib 300 is perpendicular to the positioning base 100 and extends in a direction away from the positioning base 100. The positioning reinforcing ribs 300 are arranged in pairs, and the pairs of positioning reinforcing ribs 300 form a group.
Through the structural style that is provided with a plurality of constant head tanks 200 on location base 100 to be provided with paired location strengthening rib 300 in the inside of constant head tank 200, can make the constructor when assembling the steel sheet pile, be convenient for observe the steel sheet pile and the corresponding relation of bottom constant head tank 200, overcome the problem that the steel sheet pile hasp is less and the steel sheet pile recess is great shelters from the sight through the guide of location strengthening rib 300. Constructor can utilize location strengthening rib 300 laminating steel sheet pile inner wall to lead the concatenation direction of steel sheet pile, steel sheet pile inner wall is along location strengthening rib 300 downwardly moving, the fore shaft of steel sheet pile is in alignment state this moment, and along with the removal of steel sheet pile, can make the fore shaft of installing steel sheet pile accomplish the butt joint with the fore shaft of steel sheet pile that has been fixed on locating base 100, and then realize the assembly of steel sheet pile, avoided the dislocation condition that steel sheet pile concatenation in-process probably takes place for the steel sheet pile can accomplish the concatenation steadily, fast, reduce the concatenation degree of difficulty, improve concatenation efficiency.
The positioning stiffener 300 may be detachably connected to the positioning base 100, for example, by a clamping connection, a threaded connection, etc. The positioning reinforcing rib 300 and the positioning base 100 are detachably connected, so that the assembly or recycling of the structure during transportation and construction can be facilitated, and portability can be improved.
The sealing ring is arranged on the periphery of the positioning groove 200, and when the steel sheet pile is installed in the positioning groove 200, gaps between the positioning groove 200 and the steel sheet pile can be prevented by the sealing ring, so that the soil blocking and waterproof performance of the steel sheet pile are improved.
The positioning groove 200 comprises a main groove 201 and a locking notch groove 202, wherein the main groove 201 is communicated with the locking notch groove 202, and the locking notch groove 202 is positioned at two ends of the main groove 201. The shape of the main groove 201 and the locking groove 202 is matched with the shape of the steel sheet pile, so that the steel sheet pile can smoothly enter the positioning groove 200 when moving downwards, and the butt joint is completed. Through the cooperation of constant head tank 200 and positioning base 100, can realize that the installation stability of steel sheet pile in the deep basal pit improves, be difficult for taking place the offset.
The main groove 201 is of a U-shaped structure, the positioning reinforcing ribs 300 are located at the inner corner positions of the U-shaped structure, and when the steel sheet pile is inserted into the positioning groove 200, the positioning reinforcing ribs 300 can be attached to the inner wall of the steel sheet pile and enable the steel sheet pile to slide. When constructors assemble the steel sheet piles, because the locking notch of the steel sheet piles is smaller, and the grooves of the steel sheet piles are larger, the steel sheet piles are easy to observe, the steel sheet piles are assembled by aligning the locking notch of the steel sheet piles with the grooves of the steel sheet piles, positioning reinforcing ribs 300 are aligned, the inner walls of the steel sheet piles are attached to the inner walls of the steel sheet piles by the positioning reinforcing ribs 300 to guide the steel sheet piles to be assembled, the inner walls of the steel sheet piles move downwards vertically along the positioning reinforcing ribs 300, the locking notch of the steel sheet piles are in an aligned state at the moment, the locking notch of the steel sheet piles and the locking notch of the steel sheet piles which are fixed on the positioning base 100 can be abutted together along with the movement of the steel sheet piles, the assembly of the steel sheet piles is completed, and the situation that the steel sheet piles are dislocated during the assembly can be effectively avoided, the steel sheet piles can be assembled stably and rapidly, and the efficiency of the steel sheet piles is improved.
A plurality of supporting ribs 301 are fixedly connected between the positioning reinforcing ribs 300 which are arranged in pairs in the positioning grooves 200, the supporting ribs 301 are arranged in parallel, but the supporting ribs 301 in the adjacent positioning grooves 200 are arranged in a staggered manner in the vertical direction. The supporting rib 301 can effectively support the steel sheet pile by the positioning reinforcing rib 300, so that the positioning reinforcing rib 300 has better structural strength, deformation of the spliced steel sheet pile under the action of a large external force is avoided, and the stability of the steel sheet pile is improved.
A plurality of foundation bolt holes 101 are machined in the positioning base 100, and the positioning base 100 is connected to the bottom surface of the deep foundation pit through the foundation bolt holes 101 and fasteners and used for preventing the positioning base 100 from deviating in the deep foundation pit. Of course, in practical use, a plurality of positioning bases 100 may be provided, and the positioning bases 100 between adjacent ones may be integrated by assembling.
In order to facilitate the installation and positioning of the steel sheet pile in the above-described structure, it is necessary to employ a steel sheet pile installation device, which includes a moving body 400, a movable frame 600, and a clamping frame 700, in cooperation therewith. A hanger 500 is installed at the top of the mobile body 400; the movable frame 600 is of a telescopic structure, and one end of the movable frame is connected with the hanging frame 500; the clamping frame 700 is installed at the other end of the movable frame 600 for clamping the steel sheet pile.
The clamping frame 700 is used for clamping one end of a steel sheet pile, the clamping frame 700 clamping the steel sheet pile moves to a deep foundation pit on a horizontal plane through the action of the moving machine body 400, the inner wall of the steel sheet pile is tightly attached to the positioning reinforcing ribs 300, and the splicing guide of the steel sheet pile is realized by the positioning reinforcing ribs 300.
The pushing assembly 800 is arranged between the movable frame 600 and the clamping frame 700, and the pushing assembly 800 can drive the clamping frame 700 to move downwards, so that the steel sheet pile being installed can be assembled with the steel sheet pile fixed on the positioning base 100 quickly and stably, and the installation efficiency is improved.
The pushing assembly 800 is a hydraulic cylinder.
The movable frame 600 includes a fixed bar 601, an intermediate bar 602, and a movable bar 603. One end of the fixing rod 601 is connected to the hanger 500; the middle rod 602 is slidably sleeved on the fixed rod 601; the movable rod 603 is slidably sleeved on the middle rod 602, and the clamping frame 700 is installed at the bottom of the movable rod 603; the inside of the fixed rod 601, the middle rod 602 and the movable rod 603 is hollow. Like this, make the structure of adjustable shelf 600 comparatively nimble, make it possess the adjustability, constructor accessible adjusts the position of steel sheet pile of length adjustment of adjustable shelf 600 to better splice the installation to steel sheet pile.
As shown in fig. 6, the cradle 600 further includes a winder 900 and a wire rope 901. The winder 900 is disposed on the moving body 400 at one side of the movable frame 600, a steel cable 901 is wound around the winder 900, and one end of the steel cable 901 sequentially passes through the inner cavities of the fixed rod 601, the middle rod 602 and the movable rod 603 and then is connected with the bottom of the movable rod 603. When the movable frame 600 is used, the steel cable 901 is wound and released through the winding machine 900, so that the steel cable 901 pulls the movable rod 603 to move up and down, when the movable rod 603 is pulled to move up, the middle rod 602 enters the inner cavity of the movable rod 603, the fixed rod 601 enters the inner cavity of the middle rod 602, the purpose of shortening the movable frame 600 is achieved, when the movable rod 603 is pulled to move down, the middle rod 602 slides out of the inner cavity of the movable rod 603, and the fixed rod 601 slides out of the inner cavity of the middle rod 602, the purpose of extending the movable frame 600 is achieved, and the length of the movable frame 600 is adjusted. The application can adjust the position of the steel sheet pile by adjusting the length of the movable frame 600, and can better splice and install the steel sheet pile.
The movable frame 600 of the present application further includes a limiting plate 604. The limiting plate 604 is disposed on the outer walls of the bottoms of the fixed rod 601 and the middle rod 602, and can limit the movement of the middle rod 602 and the movable rod 603. When the steel cable 901 pulls the movable rod 603 to move downwards, the middle rod 602 is prevented from being separated from the fixed rod 601 by the limiting plate 604, and the movable rod 603 is prevented from being separated from the middle rod 602, so that the stability of adjustment is improved.
The clamping frame 700 according to the present application includes a clamping portion 701 and a locking portion 702. The clamping part 701 is connected with the movable frame 600, and the clamping part 701 has an inverted U-shaped structure and is used for clamping the steel sheet pile; the locking part 702 is provided on an outer sidewall of the clamping part 701 for locking the steel sheet pile, and the locking part 702 includes a locking bolt. Like this, utilize clamping part 701 centre gripping steel sheet pile to utilize locking part 702 locking steel sheet pile, can with the stable installation of steel sheet pile on removing organism 400, thereby remove organism 400 and can shift to the mounted position department with steel sheet pile is stable, and when the concatenation steel sheet pile, loosen locking part 702, can make the smooth downwardly moving of steel sheet pile, guarantee that steel sheet pile concatenation process is steady and go on smoothly.
Finally, although the description has been described in terms of embodiments, not every embodiment is intended to include only a single embodiment, and such description is for clarity only, as one skilled in the art will recognize that the embodiments of the disclosure may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (1)
1. A positioning mechanism for steel sheet pile deep basal pit support, its characterized in that: the steel plate pile positioning device comprises a positioning base (100), positioning grooves (200) and positioning reinforcing ribs (300), wherein the positioning base (100) is horizontally paved in a deep foundation pit, the positioning grooves (200) are distributed along the length direction of the positioning base (100), and the shape of each positioning groove (200) is the same as the section shape of a steel plate pile; one end of the positioning reinforcing rib (300) is fixed on the positioning base (100), and the other end of the positioning reinforcing rib (300) extends in a direction away from the positioning base (100); the positioning reinforcing ribs (300) are arranged in the region formed by the positioning grooves (200) in a separated mode and are arranged in pairs, the positioning reinforcing ribs (300) are positioned in the steel sheet pile after the steel sheet pile is inserted into the positioning grooves (200), the positioning grooves (200) comprise main grooves (201) and locking grooves (202), the locking grooves (202) are positioned at two ends of the main grooves (201) and are communicated with the main grooves (201), adjacent positioning grooves (200) are communicated through the locking grooves (202), the main grooves (201) are of U-shaped notch structures, and the locking grooves (202) are formed by notch structures bent towards the outer sides of the U-shaped notch structures and gradually approach to two sides of the U-shaped notch structures in the bending process; the positioning reinforcing ribs (300) are positioned at the corner positions of the U-shaped structure of the main groove (201), after the steel sheet piles are inserted into the positioning grooves (200), the positioning reinforcing ribs (300) are attached to the steel sheet piles, a plurality of supporting ribs (301) are distributed among the positioning reinforcing ribs (300), and two ends of each supporting rib (301) are fixedly connected with the corresponding positioning reinforcing ribs (300); the utility model discloses a foundation ditch, including location base (100) and foundation ditch (101), support muscle (301) between two sets of location strengthening ribs (300) adjacent on location base (100) are dislocation set in vertical direction, still equipartition has a plurality of rag bolt holes (101) on location base (100), rag bolt hole (101) are fixed in deep basal pit through the fastener, rag bolt hole (101) are located the regional outside that constant head tank (200) enclosed at location base (100), just the top of rag bolt hole (101) is provided with the reaming, and the aperture of reaming is greater than the diameter of rag bolt hole (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210497621.XA CN114790747B (en) | 2022-05-09 | 2022-05-09 | Positioning mechanism for supporting deep foundation pit of steel sheet pile and mounting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210497621.XA CN114790747B (en) | 2022-05-09 | 2022-05-09 | Positioning mechanism for supporting deep foundation pit of steel sheet pile and mounting device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114790747A CN114790747A (en) | 2022-07-26 |
| CN114790747B true CN114790747B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210497621.XA Active CN114790747B (en) | 2022-05-09 | 2022-05-09 | Positioning mechanism for supporting deep foundation pit of steel sheet pile and mounting device thereof |
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| CN114277818A (en) * | 2021-12-21 | 2022-04-05 | 中交三公局第三工程有限公司 | Rectangular steel sheet pile cofferdam structure of deepwater bearing platform and construction method thereof |
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|---|---|---|---|---|
| CN204492014U (en) * | 2015-03-26 | 2015-07-22 | 中国五冶集团有限公司 | I iron fixed mount |
| CN208167737U (en) * | 2018-04-25 | 2018-11-30 | 江苏省交通工程集团有限公司 | A kind of U-shaped steel sheet pile pile sinking limiting device |
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| Publication number | Publication date |
|---|---|
| CN114790747A (en) | 2022-07-26 |
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