阅读说明：本技术 一种桩基施工用支模装置及使用该装置的施工系统 (Formwork device for pile foundation construction and construction system using same ) 是由 刘�文 蒋云东 刘静 仇宁涛 王余 邹育麟 徐威 唐林 陈颖 张科 申传贵 陈 于 2021-01-18 设计创作，主要内容包括：本发明属于工程施工技术领域。本发明涉及一种桩基施工用支模装置,其包括：至少两个相互对称的模板面板,两个模板面板之间设置有伸缩支撑杆机构,在伸缩支撑杆机构的作用下,两个模板面板相互收紧或者张开；模板面板的第一侧面上设置有倾斜注料口。本发明涉及一种使用上述桩基施工用支模装置的施工系统,其包括：从上往下布置的孔口承重支架、上述桩基施工用支模装置、扩孔挖掘操作平台和提升机构,桩基施工用支模装置和扩孔挖掘操作平台能够分别作垂直升降运动。本发明桩基施工用支模装置及使用该装置的施工系统浇筑的支撑体一体成型,无需后续工艺,节约成本,施工简便,且能够及时对边缘进行加固,安全可靠。(The invention belongs to the technical field of engineering construction. The invention relates to a formwork device for pile foundation construction, which comprises: the two template panels are mutually symmetrical, a telescopic supporting rod mechanism is arranged between the two template panels, and the two template panels are mutually tightened or expanded under the action of the telescopic supporting rod mechanism; an inclined injection port is arranged on the first side surface of the template panel. The invention relates to a construction system using the formwork device for pile foundation construction, which comprises: from last orifice bearing support, above-mentioned pile foundation construction are with formwork device, reaming excavation operation platform and hoist mechanism that down arranges, pile foundation construction is with formwork device and reaming excavation operation platform can do vertical lift motion respectively. The formwork supporting device for pile foundation construction and the support body poured by the construction system using the formwork supporting device are integrally formed, follow-up processes are not needed, the cost is saved, the construction is simple and convenient, the edge can be reinforced in time, and the formwork supporting device is safe and reliable.)

1. The utility model provides a formwork device is used in pile foundation construction which characterized in that, it includes: the formwork comprises at least two mutually symmetrical formwork panels (11), wherein the two formwork panels (11) are arranged at intervals, a telescopic supporting rod mechanism (12) is arranged between the two formwork panels (11), and the two formwork panels (11) are mutually tightened or expanded under the action of the telescopic supporting rod mechanism (12);

an inclined injection port (13) is formed in the first side face of each template panel (11), and the distance from the inclined injection port (13) to the top of each template panel (11) is larger than the distance from the inclined injection port (13) to the bottom of each template panel (11); and a supporting leg (14) is further arranged on the second side surface of the template panel (11), and the second side surface is opposite to the first side surface.

2. The formwork device for pile foundation construction according to claim 1, wherein the telescopic support rod mechanism (12) comprises a plurality of telescopic sleeves (121), the plurality of telescopic sleeves (121) are distributed at intervals along the length direction of the formwork panel (11), each telescopic sleeve (121) comprises at least one support rod (1201) and at least two screws (1202), the support rod (1201) has two ends with screw openings, and the two ends of the support rod (1201) are respectively connected with the first side surfaces of the two formwork panels (11) through the screws (1202).

3. The formwork device for pile foundation construction according to claim 2, wherein the supporting foot (14) is a knife-edge supporting foot (14), and a grout leakage preventing pad (15) is provided at the bottom of the knife-edge supporting foot (14).

4. The formwork device for pile foundation construction according to claim 2, wherein a formwork back rib (16) is further provided on the first side of the formwork panel (11).

5. A construction system using the formwork apparatus for pile foundation construction according to any one of claims 1 to 4, comprising: an aperture load-bearing support (2) arranged from top to bottom, a formwork device (1) for pile foundation construction and a reaming excavation operating platform (3) according to any one of claims 1 to 4,

install hoist mechanism (4) on orifice bearing support (2) under hoist mechanism's (4) effect, pile foundation construction is with formwork device (1) with vertical lift motion is made respectively in reaming excavation operation platform (3).

6. The construction system according to claim 5, wherein the orifice load-bearing support (2) comprises at least 6 vertical supports (21), the 6 vertical supports (21) are arranged at intervals and form a rectangular frame structure, adjacent vertical supports (21) are connected through an oblique scissor support (22), the bottoms of adjacent vertical supports (21) are connected through a first horizontal support (23), and the tops of adjacent vertical supports (21) are connected through a second horizontal support (24).

7. The construction system according to claim 6, wherein the aperture bearing support (2) further comprises at least 6 ceiling diagonal supports (25), the 6 ceiling diagonal supports (25) are arranged above the rectangular frame structure at intervals and form a trapezoid frame structure, the bottom of each ceiling diagonal support (25) is connected with the top of the vertical support (21), and the tops of the adjacent ceiling diagonal supports (25) are connected through a third horizontal support (26); a rainproof shed (6) is mounted on the trapezoid frame structure.

8. The construction system according to claim 5, wherein the reaming excavation operation platform (3) comprises a support skeleton (31), a guard rail (32) and a fall prevention net (33), the fall prevention net (33) being fixedly mounted on an upper surface of the support skeleton (31); the protective guard (32) is arranged above the supporting framework (31) in a surrounding mode, and arc-shaped guide ribs (34) are arranged on the outer wall of the protective guard (32) in a surrounding mode.

9. The construction system according to claim 5, wherein the lifting mechanism (4) comprises a first rail beam (41), a second rail beam (42), a first lifter (43), a second lifter (44), a first lifting beam (45), a second lifting beam (46), a first lifting lug (47) provided on the formwork device (1) for pile foundation construction, a second lifting lug (48) provided on the reaming and excavating operation platform (3), and a power control box (49),

the first track beam (41) and the second track beam (42) are respectively and fixedly arranged on the orifice bearing bracket (2), the first lifter (43) is fixedly arranged on the first track beam (41), and the second lifter (44) is fixedly arranged on the second track beam (42);

the first lifting beam (45) is positioned between the formwork supporting device (1) for pile foundation construction and the first lifter (43), the first lifter (43) is connected with the upper surface of the first lifting beam (45) through a first connecting rope, and the lower surface of the first lifting beam (45) is connected with a first lifting lug (47) on the formwork supporting device (1) for pile foundation construction through a second connecting rope;

the second lifting beam (46) is positioned between the formwork device (1) for pile foundation construction and the second lifter (44), the second lifter (44) is connected with the upper surface of the second lifting beam (46) through a third connecting rope, and the lower surface of the second lifting beam (46) is connected with a second lifting lug (48) on the reaming and excavating operation platform (3) through a fourth connecting rope;

the first lifter (43) and the second lifter (44) are connected with the power supply control box (49) through leads.

10. Construction system according to claim 9, wherein the first lifter (43) is a first electric block and the second lifter (44) is a second electric block.

Technical Field

The invention belongs to the technical field of engineering construction, and particularly relates to a formwork supporting device for pile foundation construction and a construction system using the formwork supporting device.

Background

The pile foundation construction is a construction form that a columnar pile body is made of reinforced concrete, steel, wood and the like, and then is driven or pressed into the stratum by a pile sinking machine until solid soil is achieved, or a concrete columnar pile body is poured after a hole is formed, so that the bearing capacity of the pile bearing platform is enhanced. The formwork is the installation formwork, when the pile foundation is constructed to a certain depth, the formwork is installed on the concrete dado, then the concrete is injected into the formwork to form a support body, and the support body plays a role in reinforcing the concrete dado.

At present, traditional pile foundation construction mode adopts monolithic plank sheathing or steel form to assist flitch and steel pipe member to accomplish the installation, and the fashioned template of installation has suitable for reading and end opening, pours into concrete into from the suitable for reading of template into, forms the supporter in the concrete recasting, and this template simple structure is comparatively commonly used. However, a gap is required between the formwork and the retaining wall poured before after pouring, and the gap needs additional filler for gap filling operation, so that the final appearance quality of the support body is poor, the integrity of the retaining wall is poor, the whole formwork is long in installation, and the construction efficiency is low.

Therefore, there is a need for a formwork device for pile foundation construction to solve the above problems.

Disclosure of Invention

The invention provides a formwork supporting device for pile foundation construction, which aims to solve the technical problems that a gap is required to exist between a traditional formwork and a previously poured retaining wall after the traditional formwork is poured, and the gap needs additional filler for gap filling operation, so that the final appearance quality of a supporting body is poor, the integrity of the retaining wall is poor, the whole formwork is long in installation time, and the construction efficiency is low.

The technical scheme for solving the technical problems is as follows:

a formwork device for pile foundation construction, comprising: the template comprises at least two template panels which are symmetrical to each other, wherein the two template panels are arranged at intervals, a telescopic supporting rod mechanism is arranged between the two template panels, and the two template panels are mutually tightened or expanded under the action of the telescopic supporting rod mechanism;

an inclined injection port is arranged on the first side surface of each template panel, and the distance from the inclined injection port to the top of the template panel is greater than the distance from the inclined injection port to the bottom of the template panel; the second side surface of the template panel is also provided with supporting legs, and the second side surface is opposite to the first side surface.

The invention has the beneficial effects that:

(1) the concrete can be injected into the construction section through the inclined injection port, the subsequent process is not needed, the cost is saved, the position of the inclined injection port is obvious, and the construction is simple and convenient;

(2) the telescopic supporting rod mechanism can quickly realize die closing and die releasing, is convenient to operate and has higher working efficiency;

(3) the concrete can be integrally formed in the construction section, and the poured support body has better quality and stability;

(4) by using the formwork device for pile foundation construction, pouring can be carried out while construction is carried out, edges can be reinforced in time, and construction safety is greatly improved.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, flexible bracing piece mechanism includes a plurality of telescopic tube, and is a plurality of telescopic tube follows the length direction interval distribution of template panel, every telescopic tube comprises an at least bracing piece and two piece at least screws, the bracing piece has the both ends of taking the silk mouth, the both ends of bracing piece all through the screw rod respectively with two the first side of template panel is connected.

The beneficial effect of adopting the further scheme is that: the bracing piece is located the centre, and the both ends and the screw rod of bracing piece are connected, through rotating the bracing piece, alright realize the removal of both ends screw rod, not only convenient to use can strengthen the installation stability of template panel moreover, convenient and practical.

Furthermore, the supporting legs are blade angle supporting legs, and slurry leakage prevention pad parts are arranged at the bottoms of the blade angle supporting legs.

The beneficial effect of adopting the further scheme is that: the edge angle supporting legs are triangular, can be stably placed on the uneven supporting surface and are beneficial to fixing the template panel; the slurry leakage prevention pad piece can improve the sealing effect of the template panel on the construction section, improve the construction quality and enhance the construction safety.

Further, a template back rib is further arranged on the first side face of the template panel.

The beneficial effect of adopting the further scheme is that: the template back rib can increase the rigidity and the intensity of template panel, and the help template panel supports the construction section, improves the security.

The invention also provides a construction system using the formwork device for pile foundation construction, which can solve the technical problems of high safety risk and low construction efficiency of the existing pile foundation excavation construction.

A construction system using the above formwork device for pile foundation construction, comprising: an orifice bearing support arranged from top to bottom, the formwork device for pile foundation construction and a reaming and excavating operation platform, wherein,

and a lifting mechanism is arranged on the orifice bearing support, and under the action of the lifting mechanism, the formwork supporting device for pile foundation construction and the reaming and excavating operation platform respectively perform vertical lifting motion.

The invention has the beneficial effects that:

(1) the orifice bearing support can provide an installation point for the lifting mechanism, and lays a foundation for controlling the stable lifting of the formwork supporting device for foundation construction and the reaming excavation operation platform;

(2) the formwork supporting device for pile foundation construction and the reaming excavation operation platform are respectively controlled, and the lifters of the formwork supporting device for pile foundation construction and the reaming excavation operation platform can be selected in a targeted manner, so that the whole safety coefficient of a construction system is improved;

(3) according to the invention, personnel can stand on the reaming excavation operation platform to carry out edge trimming work, so that the operation is convenient and the safety is higher;

(4) the construction system provided by the invention has the advantages that the erection structure is stable, the integral hoisting can be carried out, the construction is convenient, the labor intensity of operators can be effectively reduced through the lifting mechanism, the labor force is saved, and the economic benefit is better.

Further, the orifice bearing support comprises at least 6 vertical supports, 6 vertical supports are arranged at intervals and form a rectangular frame structure, the vertical supports are connected through an oblique scissors support, the vertical supports are adjacent to each other, the bottoms of the vertical supports are connected through a first horizontal support, and the tops of the vertical supports are connected through a second horizontal support.

The beneficial effect of adopting the further scheme is that: the orifice bearing support is convenient to mount, dismount and transfer, has better strength, and is convenient and practical.

Further, the orifice bearing support further comprises at least 6 ceiling inclined supports, the 6 ceiling inclined supports are arranged above the rectangular frame structure at intervals and form a trapezoidal frame structure, the bottom of each ceiling inclined support is connected with the top of the vertical support, and the tops of the adjacent ceiling inclined supports are connected through a third horizontal support; a rainproof shed is mounted on the trapezoidal frame structure.

The beneficial effect of adopting the further scheme is that: the ceiling inclined support provides an installation foundation for the rain-proof shed, and the arrangement of the rain-proof shed not only solves the problem of influence of rainfall weather on construction in the pile hole, but also avoids the conditions of hole wall instability, hole collapse and water accumulation in the hole due to the fact that rainfall soaks in the hole opening.

Further, the reaming excavation operation platform comprises a support framework, a protective guard and an anti-falling net, wherein the anti-falling net is fixedly arranged on the upper surface of the support framework; the protective guard is arranged above the supporting framework in a surrounding mode, and arc-shaped guide ribs are arranged on the outer wall of the protective guard in a surrounding mode.

The beneficial effect of adopting the further scheme is that: when reaming and excavating are carried out, the guard rail and the anti-falling net can ensure the construction safety of operators; the arc-shaped guide ribs play a role in guiding and preventing the hole wall from being scratched when the reaming excavation operation platform is lifted.

Further, the lifting mechanism comprises a first track beam, a second track beam, a first lifter, a second lifter, a first lifting beam, a second lifting beam, a first lifting lug arranged on the formwork supporting device for pile foundation construction, a second lifting lug arranged on the reaming excavation operation platform and a power supply control box, wherein,

the first track beam and the second track beam are respectively and fixedly arranged on the orifice bearing support, the first lifter is fixedly arranged on the first track beam, and the second lifter is fixedly arranged on the second track beam;

the first lifting beam is positioned between the formwork supporting device for pile foundation construction and the first lifter, the first lifter is connected with the upper surface of the first lifting beam through a first connecting rope, and the lower surface of the first lifting beam is connected with a first lifting lug on the formwork supporting device for pile foundation construction through a second connecting rope;

the second lifting beam is positioned between the formwork supporting device for pile foundation construction and the second lifter, the second lifter is connected with the upper surface of the second lifting beam through a third connecting rope, and the lower surface of the second lifting beam is connected with a second lifting lug on the reaming and excavating operation platform through a fourth connecting rope;

the first lifter and the second lifter are connected with the power supply control box through wires.

The beneficial effect of adopting the further scheme is that:

(1) the whole operation of the lifting mechanism can be controlled remotely, and other personnel or equipment are not required to drag the temporary edge, so that the temporary edge safety of the operating personnel outside the orifice is ensured, the personnel is saved, the strength is reduced, and the construction efficiency is improved;

(2) the lifting mechanism not only bears the lifting and descending of the formwork supporting device for pile foundation construction in the pile hole, but also can apply reverse tension to the formwork panel when the retaining wall concrete is poured, so that the stability when the formwork supporting device for pile foundation construction is used for carrying out retaining wall concrete pouring is ensured.

Further, the first lifter is a first electric hoist, and the second lifter is a second electric hoist.

The beneficial effect of adopting the further scheme is that: the electric hoist can be remotely controlled, is convenient to manufacture, install and maintain, has the upper limit dual limiting function, and is safe and effective.

Drawings

FIG. 1 is a schematic structural diagram of a formwork device for pile foundation construction in a front view;

FIG. 2 is a schematic front view of the construction system of the present invention;

FIG. 3 is a schematic diagram of a construction system according to the present invention;

FIG. 4 is a front view of the load bearing support of the present invention;

FIG. 5 is a schematic right-side view of the orifice load bearing support of the present invention;

FIG. 6 is a schematic front view of the reaming excavation operation platform of the present invention;

fig. 7 is a schematic front view of the reaming excavation operation platform of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a formwork device for pile foundation construction; 11. a template panel; 12. a telescopic support rod mechanism; 121. a telescopic sleeve; 1201. a support bar; 1202. a screw; 13. inclining the injection port; 14. supporting legs; 15. a pulp leakage prevention pad member; 16. a template back rib;

2. an orifice load bearing support; 21. a vertical support; 22. an oblique scissor bracket; 23. a first horizontal support; 24. a second horizontal support; 25. a ceiling diagonal support; 26. a third horizontal support;

3. reaming and excavating the operating platform; 31. a support framework; 32. protecting the fence; 33. the anti-falling net; 34. an arc-shaped guide rib;

4. a lifting mechanism; 41. a first track beam; 42. a second track beam; 43. a first lifter; 44. a second lifter; 45. a first lifting beam; 46. a second lifting beam; 47. a first lifting lug; 48. a second lifting lug; 49. a power supply control box;

5. a limiting member;

6. rain-proof canopy.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable 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 meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention is further illustrated with reference to the accompanying figures 1 to 7:

in a first mode

This mode provides a formwork device for pile foundation construction, combines fig. 1, and it includes: the formwork structure comprises at least two formwork panels 11 which are symmetrical to each other, wherein the two formwork panels 11 are arranged at intervals, a telescopic supporting rod mechanism 12 is arranged between the two formwork panels 11, and the two formwork panels 11 are mutually tightened or expanded under the action of the telescopic supporting rod mechanism 12;

an inclined injection port 13 is arranged on the first side surface of each template panel 11, and the distance from the inclined injection port 13 to the top of the template panel 11 is greater than the distance from the inclined injection port 13 to the bottom of the template panel 11; the second side surface of the template panel 11 is further provided with supporting feet 14, and the second side surface is opposite to the first side surface.

This mode can be solved and present traditional template need have the clearance with the dado of pouring before after pouring, and this clearance needs extra filler to carry out the caulking operation, has caused final support body to look the quality relatively poor outward, and the dado wholeness is not good, and whole template installation is with long, the not high technical problem of efficiency of construction.

According to the method, the concrete can be injected into the construction section through the inclined injection port 13, a subsequent process is not needed, the cost is saved, the position of the inclined injection port 13 is obvious, and the construction is simple and convenient; the telescopic supporting rod mechanism 12 can quickly realize mold closing and mold releasing, the operation is convenient, and the working efficiency is higher; the concrete can be integrated into one piece in the construction section, and the supporter quality of pouring is better, and stability is better.

Further, the telescopic supporting rod mechanism 12 includes a plurality of telescopic sleeves 121, the plurality of telescopic sleeves 121 are distributed at intervals along the length direction of the formwork panel 11, each telescopic sleeve 121 is composed of at least one supporting rod 1201 and at least two screws 1202, the supporting rod 1201 has two ends with screw openings, and the two ends of the supporting rod 1201 are respectively connected with the first side surfaces of the two formwork panels 11 through the screws 1202.

Like this, bracing piece 1201 is located the centre, and the both ends of bracing piece 1201 are connected with screw rod 1202, through rotating bracing piece 1201, alright realize the removal of both ends screw rod 1202, not only convenient to use can strengthen the installation stability of template panel 11 moreover, convenient and practical.

Further, the supporting leg 14 is a knife edge supporting leg 14, and the bottom of the knife edge supporting leg 14 is provided with a slurry leakage prevention pad 15.

Thus, the edge angle supporting leg 14 is triangular, and the edge angle supporting leg 14 can be stably placed on an uneven supporting surface, which is helpful for fixing the template panel 11; the slurry leakage prevention pad piece 15 can improve the sealing effect of the template panel 11 on the construction section, improve the construction quality and enhance the construction safety.

Further, a formwork back rib 16 is further disposed on the first side of the formwork panel 11.

Thus, the template back rib 16 can increase the rigidity and strength of the template panel 11, help the template panel 11 support the construction section, and improve the safety.

Mode two

This mode provides a construction system of using mode pile foundation construction with formwork device, combines fig. 1 to 7, and it includes: an orifice bearing support 2, the formwork device 1 for pile foundation construction and a reaming and excavating operation platform 3 which are arranged from top to bottom, wherein,

and a lifting mechanism 4 is installed on the orifice bearing support 2, and under the action of the lifting mechanism 4, the formwork supporting device 1 for pile foundation construction and the reaming excavation operating platform 3 respectively perform vertical lifting motion.

The mode can solve the technical problems that the existing pile foundation excavation construction is high in safety risk and low in construction efficiency.

The construction system has stable erection structure, the labor intensity of operators can be effectively reduced through the lifting mechanism 4, the labor force is saved, and the economic benefit is better; the orifice bearing support 2 can provide an installation point for the lifting mechanism 4, and lays a foundation for controlling the stable lifting of the formwork supporting device for foundation construction and the reaming excavation operation platform 3; the formwork supporting device 1 and the reaming excavation operation platform 3 for pile foundation construction are respectively controlled, and the lifters of the formwork supporting device 1 and the reaming excavation operation platform 3 for pile foundation construction can be selected in a targeted manner, so that the overall safety factor of a construction system is improved; personnel can stand on reaming excavation operation platform 3 and carry out the work of picking the limit, convenient operation, and the security is higher.

It can be understood that the present method and construction system can be embodied in the following forms:

mode III

This mode provides a construction system of using mode pile foundation construction with formwork device, combines fig. 1 to 7, and it includes: an orifice bearing support 2, the formwork device 1 for pile foundation construction and a reaming and excavating operation platform 3 which are arranged from top to bottom, wherein,

a lifting mechanism 4 is arranged on the orifice bearing support 2, and under the action of the lifting mechanism 4, the formwork supporting device 1 for pile foundation construction and the reaming and excavating operation platform 3 respectively perform vertical lifting movement;

the orifice bearing support 2 comprises at least 6 vertical supports 21, the 6 vertical supports 21 are arranged at intervals and form a rectangular frame structure, adjacent vertical supports 21 are connected through an oblique scissor support 22, the bottoms of adjacent vertical supports 21 are connected through a first horizontal support 23, and the tops of adjacent vertical supports 21 are connected through a second horizontal support 24;

the reaming and excavating operation platform 3 comprises a support framework 31, a protective guard 32 and an anti-falling net 33, wherein the anti-falling net 33 is fixedly arranged on the upper surface of the support framework 31; the guard rail 32 is arranged above the support framework 31 in a surrounding manner, and the outer wall of the guard rail 32 is provided with an arc-shaped guide rib 34 in a surrounding manner;

the lifting mechanism 4 includes a first rail beam 41, a second rail beam 42, a first lifter 43, a second lifter 44, a first lifting beam 45, a second lifting beam 46, a first lifting lug 47 provided on the formwork device for pile foundation construction 1, a second lifting lug 48 provided on the reaming and excavating operation platform 3, and a power control box 49,

the first track beam 41 and the second track beam 42 are respectively and fixedly arranged on the orifice bearing bracket 2, the first lifter 43 is fixedly arranged on the first track beam 41, and the second lifter 44 is fixedly arranged on the second track beam 42;

the first lifting beam 45 is positioned between the formwork device 1 for pile foundation construction and the first lifter 43, the first lifter 43 is connected with the upper surface of the first lifting beam 45 through a first connecting rope, and the lower surface of the first lifting beam 45 is connected with a first lifting lug 47 on the formwork device 1 for pile foundation construction through a second connecting rope;

the second lifting beam 46 is positioned between the formwork device 1 for pile foundation construction and the second lifter 44, the second lifter 44 is connected with the upper surface of the second lifting beam 46 through a third connecting rope, and the lower surface of the second lifting beam 46 is connected with a second lifting lug 48 on the reaming and excavating operation platform 3 through a fourth connecting rope;

the first lifter 43 and the second lifter 44 are connected to the power control box 49 through wires.

Thus, when reaming and excavating, the guard rail 32 and the anti-falling net 33 can ensure the construction safety of operators; the arc-shaped guide ribs 34 play a role in guiding and preventing the wall of the hole from being scratched when the reaming excavation operation platform 3 is lifted; the orifice bearing bracket 2 is convenient to mount, dismount and transfer, has better strength, and is convenient and practical; the whole operation of the lifting mechanism 4 can be controlled remotely, and other personnel or equipment are not required to drag the temporary edge, so that the temporary edge safety of the operating personnel outside the orifice is ensured, the personnel is saved, the strength is reduced, and the construction efficiency is improved; the lifting mechanism 4 not only supports the lifting and lowering of the formwork support device 1 for pile foundation construction in the pile hole, but also can apply reverse tension to the formwork panel 11 when the retaining wall concrete is poured, thereby ensuring the stability when the retaining wall concrete is poured by using the formwork support device 1 for pile foundation construction.

It is understood that the upper surfaces of the first lifting beam 45 and the second lifting beam 46 may be provided with lifting lugs for connecting the connecting ropes; in addition, on the formwork device 1 for pile foundation construction, a lifting lug can be specifically arranged at the top of the formwork panel 11; on the reaming and excavating work platform 3, a lifting lug may be provided on the upper surface of the support frame 31.

It will also be appreciated that, at the construction orifice, it is possible to provide locking notches and leveling pads of the orifice load-bearing support 2; the locking notch mainly plays roles in positioning four corners of a base plane, ensuring stability of an orifice, preventing collapse of the orifice and protecting safety of subsequent operation construction, and the support leveling cushion layer mainly plays a role in leveling a bearing support system and guaranteeing stability of the support.

In addition, a safety fence and a notice board can be arranged, the safety fence notice board can be used for safety protection of an anti-skid pile foundation construction area, and meanwhile, the safety fence can be installed on the anti-skid pile foundation construction area for operation regulation, danger notification, safety warning and the like, so that a good safety protection effect can be achieved.

Further, the edge of the orifice load-bearing support 2 is provided with a stop 5. In this way, the mounting of the aperture load carrier 2 can be assisted by the stop 5.

Further, the orifice bearing support 2 further comprises at least 6 ceiling diagonal supports 25, the 6 ceiling diagonal supports 25 are arranged above the rectangular frame structure at intervals and form a trapezoidal frame structure, the bottom of each ceiling diagonal support 25 is connected with the top of the vertical support 21, and the tops of the adjacent ceiling diagonal supports 25 are connected through a third horizontal support 26; and a rainproof shed 6 is arranged on the trapezoidal frame structure.

Thus, the ceiling inclined support 25 provides an installation foundation for the rain-proof shed 6, and the arrangement of the rain-proof shed 6 not only solves the problem of influence of rainfall weather on construction in the pile hole, but also avoids the conditions of hole wall instability, hole collapse and water accumulation in the hole due to the fact that rainfall soaks in the hole opening and the hole.

Further, the first lifter 43 is a first electric hoist, and the second lifter 44 is a second electric hoist.

Therefore, the electric hoist can be remotely controlled, is convenient to manufacture, install and maintain, and is simple and practical.

The working principle and the steps are as follows:

s1, uniformly hoisting the installed orifice bearing support 2, the formwork supporting device 1 for pile foundation construction and the reaming excavation operation platform 3 to the orifice;

s2, moving the worker to the reaming and excavating operation platform 3, and moving the reaming and excavating operation platform 3 into the hole through the second lifter 44; the formwork supporting device 1 for pile foundation construction is moved into the hole through the first lifter 43;

and S3, carrying out edge trimming work by a worker of the reaming excavation operation platform 3, and pouring concrete into the construction section through an inclined injection port 13 on the template panel 11.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.