Multifunctional foundation pile construction platform device

Abstract

The utility model provides a multifunctional foundation pile construction platform device. The multifunctional foundation pile construction platform device comprises a first limiting piece, a second limiting piece and a construction platform used for being arranged outside the upper end of a steel casing in a sleeving mode, two portal frames are arranged on the upper surface of the construction platform in a diagonal mode, each portal frame is provided with two portal frames at intervals, and a gap between the two portal frames in each portal frame forms a first installation position; a second mounting position is formed in the portal frame in a penetrating manner, and a first limiting part is mounted at the first mounting position; or, at least two second limiting pieces are arranged at intervals and are inserted into the second mounting positions on the corresponding door frames respectively, and the first limiting pieces and the second limiting pieces extend in the radial direction of the construction platform. The steel casing bottom opening outer protection wall can be prevented from loosening and falling off, a reinforcement cage is prevented from floating upwards, and safe construction of operators is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bored cast-in-place pile construction, in particular to a multifunctional foundation pile construction platform device. Background Art

[0002] The slurry-supported bored cast-in-place pile is formed by slowly drilling with a pile driver under the condition of slurry support, taking out the drill cuttings by the slurry, protecting the hole wall from collapsing, and then replacing the slurry with underwater concrete pouring after the hole is formed.

[0003] After the foundation pile hole is formed, during the process of lowering the steel reinforcement cage, installing the conduit, cleaning the hole and pouring the concrete, it often touches and borrows the force at the top of the steel casing, and the disturbance is transmitted from top to bottom to the bottom of the steel casing, resulting in the loosening and falling off of the outer wall protection at the bottom of the steel casing, and even the situation of hole collapse.

[0004] Secondly, the underwater conduit is used to pour concrete for the cast-in-place pile. During this process, due to the large fluidity of the concrete, it is easy to cause the steel reinforcement cage to be lifted up under the influence of the concrete, affecting the forming quality. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multifunctional foundation pile construction platform device to avoid the loosening and falling off of the outer wall protection at the bottom of the steel casing and avoid the floating of the steel reinforcement cage.

[0006] The technical solution of the utility model is: a multifunctional foundation pile construction platform device, including a first limiting member, a second limiting member and a construction platform for sleeving outside the upper end of the steel casing. Two groups of gantries are arranged diagonally on the upper surface of the construction platform, with two spaced in each group. The gap between the two gantries in each group forms a first installation position, and the inside of the gantry is penetrated to form a second installation position. The first limiting member is installed at the first installation position; alternatively, at least two second limiting members are arranged at intervals and are respectively inserted into the second installation positions on the corresponding gantries. Both the first limiting member and the second limiting member extend in the radial direction of the construction platform.

[0007] Preferably, the multifunctional foundation pile construction platform device further includes a third limiting member. The mutually remote sides of the two gantries in each group form a third installation position; at least two third limiting members are arranged at intervals and are respectively installed at the third installation positions outside the gantries. The third limiting member extends in the radial direction of the construction platform.

[0008] Preferably, both the first limiting member and the third limiting member are I-beams, and the second limiting member is a steel bar.

[0009] Preferably, the gantry is a channel steel with an open end at one end, and the open side of the gantry is fixed to the upper surface of the construction platform.

[0010] Preferably, a plurality of second mounting holes are circumferentially and uniformly distributed on the lower surface of the construction platform. Sleeves are provided in the second mounting holes, and anchor bars are connected to the sleeves. One end of the anchor bar away from the sleeve is inserted into the ground.

[0011] Preferably, the construction platform includes splicing plates and connecting members. The splicing plates are arc-shaped, and the circular construction platform is formed by enclosing four splicing plates. Adjacent splicing plates are connected by connecting members, and the gantry is arranged on the upper surface of the splicing plates.

[0012] Preferably, the splicing plates are I-beams.

[0013] Preferably, connecting plates are provided at both ends of the splicing plates. First mounting holes are provided on the connecting plates. The connecting plates on two splicing plates are butted, and the first mounting holes thereon are aligned to insert the connecting members.

[0014] Preferably, at least two layers are provided inside and outside the splicing plates.

[0015] Compared with the related art, the beneficial effects of the present utility model are as follows:

[0016] First, two groups of gantries are arranged diagonally on the construction platform. The gantries form a first mounting position and a second mounting position. When a first limiting member is installed at the first mounting position, during the hoisting of the steel reinforcement cage, the force can be transmitted to the construction platform through the first limiting member, playing a temporary supporting role for the steel reinforcement cage; when two second limiting members are installed at the second mounting position, the two second limiting members pass through the steel reinforcement cage to axially limit the position of the steel reinforcement cage, avoiding floating during the pouring process; at the same time, the conduit passes through between the two second limiting members, which can limit the swing of the conduit, avoiding the disturbance of the conduit to the foundation pile retaining wall at the bottom opening of the steel casing during the pouring process, thereby reducing the excessive thickness of the bottom sediment in the hole and reducing the risk of hole collapse, avoiding the loosening and falling off of the outer retaining wall at the bottom opening of the steel casing, and avoiding the floating of the steel reinforcement cage;

[0017] Second, a third mounting position is also designed on the gantry. When two third limiting members are installed at the third mounting position, by supporting the conduit, it is convenient for the removal of the conduit. At the same time, the third limiting members provide a relatively safe and reliable working platform for workers to remove the conduit, ensuring the construction safety;

[0018] Third, the construction platform is fixed to the ground through anchor bars, ensuring the stability of the overall structure. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the multi-functional foundation pile construction platform device provided by the present utility model when using the first mounting position;

[0020] Figure 2 is Figure 1 the top view of

[0021] Figure 3 Schematic diagram of the multi-functional pile foundation construction platform device provided by the present utility model when using the second installation position;

[0022] Figure 4 is Figure 3 top view of;

[0023] Figure 5 Schematic diagram of the multi-functional pile foundation construction platform device provided by the present utility model when using the third installation position;

[0024] Figure 6 is Figure 4 top view of.

[0025] In the attached drawings: 1, construction platform; 2, connecting plate; 3, first installation hole; 4, connecting piece; 5, second installation hole; 6, anchor bar; 7, sleeve; 8, gantry; 9, second limiting piece; 10, first limiting piece; 11, steel casing; 12, third limiting piece; 15, steel reinforcement cage; 16, conduit; 13, splicing plate. Specific embodiments

[0026] The present utility model will be described in detail below with reference to the attached drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. For the convenience of narration, words such as "upper", "lower", "left", and "right" in the following text only indicate the same direction as the upper, lower, left, and right directions of the attached drawings itself, and do not limit the structure.

[0027] As Figure 1 shown, a multi-functional pile foundation construction platform device provided in this embodiment includes a first limiting piece 10, a second limiting piece 9, a third limiting piece 12, a sleeve 7, an anchor bar 6, a gantry 8, and a construction platform 1 for sleeving outside the upper end of the steel casing 11. A steel reinforcement cage 15 is arranged in the steel casing 11.

[0028] The construction platform 1 includes a splicing plate 13, a connecting piece 4, and a connecting plate 2. The splicing plate 13 is arc-shaped and is processed from 50# I-beam. The circular construction platform 1 is formed by enclosing four splicing plates 13. Connecting plates 2 are arranged at both ends of the splicing plate 13. A first installation hole 3 is provided on the connecting plate 2. The connecting plates 2 on two splicing plates 13 are butted, and the first installation holes 3 thereon are aligned to insert the connecting piece 4. The connecting piece 4 is a bolt, a gasket, and a nut, and is used to connect two adjacent splicing plates 13. Two layers of splicing plates 13 are arranged inside and outside the splicing plate 13. The two layers of splicing plates 13 are interconnected.

[0029] The lower surface of the construction platform 1 is evenly distributed with a plurality of second mounting holes 5 in a circumferential manner. A sleeve 7 is fixed in the second mounting hole 5. The upper end of the anchor bar 6 is tapped inside the sleeve 7, and the upper end of the anchor bar 6 is threadedly connected to the sleeve 7. The lower end of the anchor bar 6 is inserted into the ground and firmly integrated with the ground.

[0030] Two groups of gantry frames 8 are arranged diagonally on the upper surface of the construction platform 1, and two are arranged at intervals in each group. The gantry frame 8 is a 22# channel steel with an open end at one end, and the side of the gantry frame 8 with the open end is welded and fixed to the upper surface of the splicing plate 13 of the construction platform 1.

[0031] The gap between the two gantry frames 8 in each group forms a first installation position, the inside of the gantry frame 8 is through to form a second installation position, and the sides of the two gantry frames 8 in each group away from each other form a third installation position.

[0032] A first limiting member 10 is installed at the first installation position, and the first limiting member 10 penetrates through the reinforcement cage 15 (as Figure 1 、 Figure 2 shown); alternatively, at least two second limiting members 9 are arranged at intervals and are respectively inserted into the second installation positions on the corresponding gantry frames 8, and the second limiting members 9 are spot-welded or wire-tied to the reinforcement cage 15 (as Figure 3 、 Figure 4 shown). Alternatively, at least two third limiting members 12 are arranged at intervals and are respectively installed at the third installation positions outside the gantry frames 8.

[0033] Both the first limiting member 10 and the third limiting member 12 are 16# I-beams, and the second limiting member 9 is a 28# threaded steel bar. The gap at the first installation position is about 30 cm.

[0034] During construction, the periphery of the steel casing 11 is simply tamped and leveled, and two gantry frames 8 are welded at the corresponding positions on the upper surface of the splicing plate 13. Four splicing plates 13 are connected by connectors 4 on the outside of the steel casing 11 to form a circular construction platform 1, and then the anchor bars 6 are installed and fixed to the ground to form the multifunctional foundation pile construction platform device of the present invention.

[0035] As Figure 1 、 Figure 2 shown, first place the first limiting member 10 at the first installation position, then hoist the reinforcement cage 15 so that the horizontal bars on the reinforcement cage 15 are supported on the first limiting member 10, the lower part of the horizontal bars of the reinforcement cage 15 is located below the first limiting member 10, and then install the conduit 16 in the reinforcement cage 15. After the installation is completed, remove the first limiting member 10 and install the second limiting member 9 at the second installation position. As Figure 3 、 Figure 4As shown, the second limiting member 9 (steel bar) is spot-welded to the steel reinforcement cage 15. At this time, the conduit 16 is placed between two spaced second limiting members 9. During the pouring of underwater concrete, it can effectively prevent the steel reinforcement cage 15 from floating up and the position of the conduit 16 from shifting.

[0036] As Figure 5 , Figure 6 shown, the conduit 16 is formed by splicing multiple sections, and it also needs to be disassembled section by section when disassembling. When it is necessary to disassemble the conduit 16, two spaced third limiting members 12 are installed at the third installation position, and the conduit 16 is placed between the two third limiting members 12. Each section of the conduit 16 is spliced through a flange. At this time, additional steel bars are used to horizontally support the upper surface of the third limiting member 12 and the lower surface of the flange. The flange is supported on the third limiting member 12 by the steel bar, thereby realizing the support of the conduit 16, and then workers stand on the third limiting member 12 to disassemble the bolts on the flange.

[0037] The multifunctional pile foundation construction platform device of the present invention can effectively avoid the force on the steel casing during the hoisting and splicing process of the steel reinforcement cage and the removal process of the conduit, prevent the steel casing from disturbing the soil layer due to force and resulting in excessive bottom sediment of the pile or the risk of hole collapse. And during the pouring of underwater concrete, it can effectively prevent the steel reinforcement cage from floating up and the position of the conduit from shifting, facilitating the manual installation and removal of the conduit. At the same time, through the force-bearing structure of the third limiting member and the construction platform, a safe and reliable operation platform is provided, greatly ensuring the construction safety. The multifunctional pile foundation construction platform device is convenient to install and can be reused. It effectively guarantees the construction quality of the pile foundation. After detection, the qualification rate of Class I piles is greatly improved.

[0038] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. A multifunctional pile foundation construction platform device, characterized in that: The invention comprises a first stopper (10), a second stopper (9) and a construction platform (1) for being sleeved on the outer part of the upper end of a steel casing (11), wherein two groups of portal frames (8) are arranged diagonally on the upper surface of the construction platform (1), and two portal frames (8) are arranged in each group at intervals, and the gap between the two portal frames (8) in each group forms a first installation position, and the interior of the portal frame (8) is connected to form a second installation position, and the first stopper (10) is installed at the first installation position; or, at least two second stoppers (9) are arranged at intervals and are respectively inserted into the second installation positions on the corresponding portal frames (8), and the first stopper (10) and the second stopper (9) both extend in the radial direction of the construction platform (1).

2. The multifunctional pile foundation construction platform device according to claim 1, characterized in that: It also includes a third stopper (12), and the sides of the two door frames (8) in each group that are away from each other form a third installation position; at least two third stoppers (12) are arranged at intervals and are respectively installed at the third installation positions outside the door frames (8), and the third stoppers (12) extend in the radial direction of the construction platform (1).

3. The multifunctional pile foundation construction platform device according to claim 2, characterized in that: The first limiting member (10) and the third limiting member (12) are both I-beams, and the second limiting member (9) is a steel bar.

4. The multifunctional pile foundation construction platform device according to claim 1, characterized in that: The door frame (8) is a channel steel with an open end, and the open side of the door frame (8) is fixed to the upper surface of the construction platform (1).

5. The multifunctional pile foundation construction platform device according to claim 1, characterized in that: The lower surface of the construction platform (1) has a plurality of second mounting holes (5) uniformly distributed in a circumference, a sleeve (7) is provided in the second mounting hole (5), an anchor bar (6) is connected to the sleeve (7), and an end of the anchor bar (6) away from the sleeve (7) is inserted into the ground.

6. The multifunctional pile foundation construction platform device according to claim 1, characterized in that: The construction platform (1) comprises a splicing plate (13) and a connecting piece (4); the splicing plate (13) is arc-shaped; four splicing plates (13) are used to enclose the circular construction platform (1); two adjacent splicing plates (13) are connected via the connecting piece (4); and the door frame (8) is arranged on the upper surface of the splicing plate (13).

7. The multifunctional pile foundation construction platform device according to claim 6, characterized in that: The splicing plate (13) is an I-beam.

8. The multifunctional pile foundation construction platform device according to claim 6, characterized in that: Both ends of the splicing plate (13) are provided with connecting plates (2), and the connecting plates (2) are provided with first mounting holes (3). The connecting plates (2) on the two splicing plates (13) are butt-jointed, and the first mounting holes (3) thereon are aligned to insert the connecting piece (4).

9. The multifunctional pile foundation construction platform device according to claim 6, characterized in that: The splicing plate (13) is provided with at least two layers inside and outside.

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