Jacking device for upper channel and lower channel of deep foundation pit

Abstract

The utility model relates to a jacking device for an upper channel and a lower channel of a deep foundation pit, which belongs to the technical field of building construction and comprises a ladder cage unit, a hydraulic cylinder and a PLC (programmable logic controller). Wherein the elevator cage units are arranged in the foundation pit, the number of the elevator cage units is adjusted according to the depth of the deep foundation pit, and the elevator cage units form a vertical channel of the upper foundation pit and the lower foundation pit; the hydraulic cylinder is installed at the bottom of the elevator unit on the bottommost layer, the steel corbel is installed on the elevator unit on the bottommost layer, and the hydraulic cylinder is used for pushing the steel corbel to provide jacking power for the elevator units so as to dismantle the redundant elevator units on the top; the PLC is installed on the trestle plate between the side wall of the foundation pit and the elevator cage unit on the topmost layer and used for controlling work of the hydraulic cylinders. The deep foundation pit up-and-down channel jacking device can directly act on the steel corbels of the elevator at the bottommost layer through the hydraulic cylinders to form jacking force from bottom to top, and top redundant elevator units can be decomposed section by section.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building construction, especially relates to a deep foundation pit up and down passageway jacking device. BACKGROUND

[0002] In the field of building construction, the ladder cage is a temporary passageway facility specially designed for the safe up and down of high-altitude or deep pit work surfaces such as deep foundation pits, high slopes, bridge piers, etc. It combines the convenience of stairs and the safety of protective cages, and is an important vertical access tool on the construction site, especially suitable for conditions without elevators or ordinary ladders.

[0003] In the prior art, Chinese invention patent application CN119641134A discloses a deep foundation pit assembly type ladder cage system and a construction method thereof. The patent realizes the erection of the assembly type ladder cage during the deep foundation pit excavation process through the inner support beam, the support member and the assembly type ladder cage, and does not need to disassemble the auxiliary installation tool after installation, thereby improving the installation speed. However, after the foundation pit construction is completed, the ladder cage usually needs to be disassembled, and the assembly type ladder cage system provided by the patent cannot realize the rapid disassembly of the ladder cage.

[0004] Therefore, how to provide a ladder cage that can be quickly disassembled is a technical problem that needs to be solved at present. UTILITY MODEL CONTENT

[0005] In view of the deficiencies in the prior art, the utility model provides a deep foundation pit up and down passageway jacking device. A hydraulic cylinder directly acts on a steel bracket of the bottommost ladder cage, forming a jacking force from bottom to top, and the redundant ladder cage units at the top can be decomposed section by section.

[0006] The utility model provides a deep foundation pit up and down passageway jacking device, which comprises:

[0007] The ladder cage unit is arranged in the foundation pit, and the number of the ladder cage units is adjusted according to the depth of the deep foundation pit. The ladder cage units constitute a vertical passageway of the up and down foundation pit.

[0008] The hydraulic cylinder is installed at the bottom of the bottommost ladder cage unit, and the bottommost ladder cage unit is provided with a steel bracket. The hydraulic cylinder is used to push the steel bracket to provide jacking power for the ladder cage unit, so as to disassemble the redundant ladder cage units at the top.

[0009] The PLC controller is installed on the trestle board between the side wall of the foundation pit and the topmost ladder cage unit, and is used to control the work of the hydraulic cylinder.

[0010] The technical scheme directly acts on the steel bracket of the bottommost ladder cage through the hydraulic cylinder, forms a jacking force from bottom to top, and can decompose the redundant ladder cage units at the top section by section.

[0011] In some embodiments, a column pile is arranged under the trestle plate for support.

[0012] In some embodiments, a support platform is fixed between the ladder cage unit and the column pile, the support platform is erected as the construction depth deepens, and is fixedly connected with the column pile, and the support platform is provided with a support rod for supporting the ladder cage unit. The fixed connection of the support platform and the column pile provides a stable support foundation for the ladder cage unit, and the design of the support rod can effectively disperse the load and improve the safety of the overall structure.

[0013] In some embodiments, the support platform includes a main beam and a secondary beam, the secondary beam is connected perpendicularly with the column pile, and the main beam is perpendicular to the secondary beam and encloses a frame around the outside of the ladder cage unit; the support rod is arranged at the four corners of the frame, and the support rod is hinged with the secondary beam; when the ladder cage unit is seated on the support platform, the support rod is rotated to open and forms a triangular structure at the four corners of the frame; when the ladder cage passes through the frame, the support rod is rotated to retract and coincides with the secondary beam. The main beam and the secondary beam enclose a frame structure to enhance the lateral stability of the ladder cage, and the hinged support rod can be unfolded to form a triangular support when the ladder cage is in place to improve the anti-overturning capacity, and can be retracted when the ladder cage moves to avoid hindering the construction and achieve flexible adjustment.

[0014] In some embodiments, the support platform is further provided with a diagonal beam, one end of the diagonal beam is fixedly connected with the frame, and the other end is fixedly connected with the column pile. The diagonal beam further strengthens the lateral force resistance of the support platform, so that the support platform can remain stable under the complex stress environment of the deep foundation pit.

[0015] In some embodiments, the topmost ladder cage unit is provided with a retractable step plate, and the retractable step plate is used to connect the topmost ladder cage unit and the trestle plate when opened. The seamless connection between the ladder cage and the trestle plate is realized by the arrangement of the retractable step plate, the safety of personnel passing is improved, and the risk of high-altitude falling is avoided.

[0016] In some embodiments, the retractable step plate includes a fixed step plate and a sliding step plate, the fixed step plate is fixed in the ladder cage unit, and the sliding step plate is installed above the fixed step plate and is slidingly connected with the fixed step plate. The cooperation of the sliding step plate and the fixed step plate makes the step plate more smooth in extension and retraction, facilitates quick unfolding or retraction, improves the construction efficiency, and ensures that the step plate can remain stable in extreme conditions.

[0017] In some embodiments, the sliding step plate is provided with a sliding rail at the bottom, and the sliding rail is fixedly connected with the fixed step plate. The step plate is more stable and reliable in extension and retraction, and the risk of jamming is reduced.

[0018] In some embodiments, the fixed pedal and the sliding pedal surface are provided with anti-skid lines. The anti-skid lines effectively increase the pedal friction and reduce the risk of slipping for workers.

[0019] In some embodiments, adjacent ladder cage units are connected by bolts. The ladder cage is more convenient to disassemble, improves construction efficiency, ensures connection strength, and avoids ladder cage shaking.

[0020] Based on the above scheme, the deep foundation pit up-and-down passage jacking device directly acts on the steel corbel of the bottommost ladder cage through the hydraulic cylinder, forms a top-up jacking force, and can decompose the redundant top ladder cage unit in sections; the PLC controller remotely controls the hydraulic cylinder, and the operator can complete the disassembly without high-altitude operation, completely eliminating the falling hazards of climbing disassembly; the number of ladder cage units can be flexibly configured according to the depth of the foundation pit, forming an assembly structure, and the jacking disassembly mechanism is not limited by the depth of the foundation pit, and has strong versatility; the disassembled ladder cage unit has high integrity and can be directly transported to other construction sites for repeated use, reducing construction cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate certain illustrative embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0022] Figure 1 FIG. 1 is a structural schematic view of a deep foundation pit up-and-down passage jacking device according to the present application;

[0023] Figure 2 FIG. 5 is a plan view of a support platform in the deep foundation pit up-and-down passage jacking device according to the present application;

[0024] Figure 3 FIG. 6 is a structural schematic view of a telescopic pedal in the deep foundation pit up-and-down passage jacking device according to the present application.

[0025] In the drawings:

[0026] 1, ladder cage unit; 2, hydraulic cylinder; 3, PLC controller; 4, trestle plate; 5, vertical column pile; 6, support platform;

[0027] 11, steel corbel; 12, telescopic pedal; 121, fixed pedal; 122, sliding pedal;

[0028] 601, main beam; 602, secondary beam; 603, inclined beam; 604, support rod. DETAILED DESCRIPTION

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] The terms "first", "second", "third" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include one or more of the features.

[0032] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] The terms "system", "unit", "module" used in this paper are a method for distinguishing different components, elements, parts, or assemblies at different levels, which can be replaced by other expressions with the same purpose.

[0034] As Figures 1-3As shown in the embodiment of the deep foundation pit up and down passage jacking device, the deep foundation pit up and down passage jacking device comprises a ladder cage unit 1, a hydraulic cylinder 2 and a PLC controller 3; wherein the ladder cage unit 1 is arranged in the foundation pit, the number of the ladder cage unit 1 is adjusted according to the depth of the deep foundation pit, and the ladder cage unit 1 constitutes a vertical passage of the upper and lower foundation pits; the hydraulic cylinder 2 is installed at the bottom of the bottommost ladder cage unit 1, the bottommost ladder cage unit 1 is provided with a steel corbel 11, the hydraulic cylinder 2 is used for pushing the steel corbel 11 to provide jacking power of the ladder cage unit 1, so as to remove the redundant ladder cage unit 1 at the top; and the PLC controller 3 is installed on a trestle board 4 between the side wall of the foundation pit and the topmost ladder cage unit 1, and is used for controlling the work of the hydraulic cylinder 2.

[0035] In the above schematic embodiment, the deep foundation pit up and down passage jacking device directly acts on the steel corbel 11 of the bottommost ladder cage through the hydraulic cylinder 2, forms a top-up jacking force, and can decompose the redundant ladder cage unit 1 at the top in sections; the PLC controller 3 remotely controls the hydraulic cylinder 2, so that the operator can complete the removal without high-altitude operation, and the falling hazard of climbing removal is completely eliminated; the number of the ladder cage unit 1 can be flexibly configured according to the depth of the foundation pit, a fabricated structure is formed, the jacking and removal mechanism is not limited by the depth of the foundation pit, and the universality is high; the removed ladder cage unit 1 has high integrity and can be directly transported to other sites for repeated use, thereby reducing construction cost.

[0036] Further, the ladder cage unit 1 is internally provided with steps for climbing.

[0037] In some embodiments, the steel corbel 11 is provided with four steel corbels 11, and the steel corbel 11 is fixed on the column of the ladder cage unit 1; the hydraulic cylinder 2 is correspondingly provided with four hydraulic cylinders 2.

[0038] In some embodiments, as shown in the embodiment of the deep foundation pit up and down passage jacking device, Figure 1 As shown, the trestle board 4 is provided with a column pile 5 below for support.

[0039] In some embodiments, as shown in the embodiment of the deep foundation pit up and down passage jacking device, Figure 1 As shown, a support platform 6 is fixed between the ladder cage unit 1 and the column pile 5, the support platform 6 is erected as the construction depth deepens, and is fixedly connected with the column pile 5, and the support platform 6 is provided with a support rod 604 for supporting the ladder cage unit 1. Through the fixed connection of the support platform 6 and the column pile 5, a stable support foundation is provided for the ladder cage unit 1, and the design of the support rod 604 can effectively disperse the load and improve the safety of the overall structure.

[0040] In some embodiments, as shown in the embodiment of the deep foundation pit up and down passage jacking device, Figure 2As shown, the support platform 6 comprises a main beam 601 and a secondary beam 602, the secondary beam 602 is connected perpendicularly to the column pile 5, and the main beam 601 is perpendicular to the secondary beam 602 and encloses a frame around the outside of the ladder cage unit 1; the support rod 604 is arranged at the four corners of the frame, and the support rod 604 is hinged to the secondary beam 602; when the ladder cage unit 1 is placed on the support platform 6, the support rod 604 is rotated to open and forms a triangular structure at the four corners of the frame; when the ladder cage passes through the frame, the support rod 604 is rotated to retract and coincides with the secondary beam 602. The main beam 601 and the secondary beam 602 enclose a frame structure to enhance the lateral stability of the ladder cage, and the hinged support rod 604 can be unfolded to form a triangular support when the ladder cage is in place to improve the anti-overturning capability, and can be retracted when the ladder cage moves to avoid hindering the construction and achieve flexible adjustment.

[0041] In some embodiments, as shown in Figure 1 The support platform 6 is also provided with a diagonal beam 603, one end of which is fixedly connected to the frame, and the other end is fixedly connected to the column pile 5. The diagonal beam 603 further strengthens the lateral force resistance of the support platform 6, so that the support platform 6 can still remain stable under the complex stress environment of the deep foundation pit, while optimizing the load transfer path, reducing the stress burden of the main beam 601 and the secondary beam 602, and prolonging the service life.

[0042] Further, as shown in Figure 2 The main beam 601 is provided with two, and the secondary beam 602 is provided with four, and the space enclosed by the main beam 601 and the middle two secondary beams 602 is used to set the ladder cage unit 1; the diagonal beam 603 is provided with two, and the two diagonal beams 603 are arranged above the side secondary beams 602 and form a triangular structure with the side secondary beams 602 and the column pile 5.

[0043] In some embodiments, as shown in Figure 1 The topmost ladder cage unit 1 is provided with a retractable treadle 12, which is used to connect the topmost ladder cage unit 1 and the trestle plate 4 when the retractable treadle 12 is opened. Through the arrangement of the retractable treadle 12, seamless connection between the ladder cage and the trestle plate 4 is realized, the safety of personnel passing is improved, the risk of high-altitude falling is avoided, and the space is saved due to the retractable characteristics of the treadle, which is convenient for ladder cage adjustment and removal.

[0044] In some embodiments, as shown in Figure 3 The retractable treadle 12 comprises a fixed treadle 121 and a sliding treadle 122, the fixed treadle 121 is fixed in the ladder cage unit 1, and the sliding treadle 122 is installed above the fixed treadle 121, and the sliding treadle is slidingly connected with the fixed treadle 121. The cooperation of the sliding treadle 122 and the fixed treadle 121 makes the treadle more smooth in extension and retraction, facilitates quick unfolding or retraction, improves construction efficiency, and at the same time ensures that the treadle can still remain stable in extreme conditions.

[0045] In some embodiments, the sliding pedal 122 is provided with a sliding rail (not shown in the figure) fixedly connected with the fixed pedal 121. The sliding rail structure makes the pedal extension more stable and reliable, and reduces the risk of jamming.

[0046] Further, the sliding rail is provided with double rails, and the sliding rail adopts a heavy-duty ball sliding rail. The application of the heavy-duty ball sliding rail can enhance the load-bearing capacity and durability, and the double rail design can improve the stability and load capacity of the pedal, which is suitable for frequent use in construction environment.

[0047] In some embodiments, the end of the sliding rail is provided with a limiting baffle, and the bottom of the sliding pedal 122 is provided with a matching anti-escape clamp, which is clamped on the limiting baffle when the sliding pedal 122 is fully opened. Through the cooperation of the limiting baffle and the anti-escape clamp, the pedal can be prevented from accidentally escaping, ensuring the safety during high-altitude operation.

[0048] In some embodiments, the surface of the fixed pedal 121 and the sliding pedal 122 is provided with anti-skid lines. Through the setting of the anti-skid lines, the pedal friction force is effectively increased, the risk of workers slipping is reduced, the high-altitude operation safety specification is met, and the overall construction safety is improved.

[0049] In some embodiments, adjacent ladder cage units 1 are connected by bolts. The bolt connection makes the ladder cage disassembly more convenient, improves the construction efficiency, ensures the connection strength, avoids the ladder cage shaking, and can be reused after disassembly, reducing the construction cost.

[0050] During the earthwork excavation process of a deep foundation pit, when the depth of the foundation pit exceeds 2m, a deep foundation pit up-and-down passage jacking device needs to be used by construction personnel to go up and down the foundation pit. Figures 1-3 The use method of the deep foundation pit up-and-down passage jacking device is described below, including the following steps:

[0051] S1, during the excavation process of the foundation pit, a support platform 6 is arranged at a proper height, the support platform 6 needs to be reliably welded with the vertical column pile 5, and the support platform 6 is mainly used to bear the self-weight of the ladder cage and the active load of the construction personnel and small machines;

[0052] S2, the support rod 604 is rotated to open, and a triangular structure is formed with the frame;

[0053] S3, the ladder cage unit 1 is hoisted above the support rod 604 by using a hoisting device;

[0054] S4, as the excavation depth of the foundation pit deepens, the support rod 604 of the bottom support platform 6 is continuously opened, the ladder cage unit 1 is hoisted by using the hoisting device, the support rod 604 of the upper support platform 6 is retracted, and then the ladder cage unit 1 is placed on the support rod 604 of the bottom support platform 6 by using the hoisting device;

[0055] S5, when the ladder cage unit 1 needs to be removed, the hydraulic cylinder 2 of the bottommost ladder cage unit 1 is controlled by the PLC controller 3 to start working, and the hydraulic cylinder 2 provides the jacking power for the ladder cage unit 1, and the excess ladder cage unit 1 is removed at the top of the foundation pit.

[0056] Through the description of the plurality of embodiments of the deep foundation pit up and down passage jacking device of the utility model, it can be seen that the deep foundation pit up and down passage jacking device embodiment of the utility model has at least one or more of the following advantages:

[0057] 1、 the deep foundation pit up and down passage jacking device provided by the utility model, through the hydraulic cylinder 2 directly acting on the steel corbel 11 of the bottommost ladder cage, the jacking force from bottom to top is formed, and the redundant ladder cage unit 1 at the top can be decomposed section by section; the PLC controller 3 remotely controls the hydraulic cylinder 2, and the operator can complete the removal without high-altitude operation, and the falling hazard of climbing removal is completely eliminated;

[0058] 2、 the deep foundation pit up and down passage jacking device provided by the utility model, the number of ladder cage units 1 can be flexibly configured according to the depth of the foundation pit, forming an assembly structure, and the jacking and removing mechanism is not limited by the depth of the foundation pit, and the universality is strong; the ladder cage unit 1 after removal has high integrity and can be directly transported to other construction sites for repeated use, reducing construction cost;

[0059] 3、 the deep foundation pit up and down passage jacking device provided by the utility model, through the setting of the telescopic pedal 12, seamless connection between the ladder cage and the trestle plate 4 is realized, the safety of personnel passing is improved, the risk of high-altitude falling is avoided, and the telescopic characteristics of the pedal save space and facilitate ladder cage adjustment and removal.

[0060] Finally, it should be explained that: the embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to.

[0061] The above embodiments are only used to illustrate the technical scheme of the utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific implementation of the utility model can be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical scheme of the utility model, they should be covered in the technical scheme range of the utility model claimed by the utility model.

Claims

1. A deep foundation pit up and down passage jacking device, characterized in that, The utility model relates to a deep foundation pit construction method and device, including: ladder cage units are arranged in the foundation pit, the number of ladder cage units is adjusted according to the depth of the deep foundation pit, and the ladder cage units constitute vertical channels of the upper and lower foundation pits; a hydraulic cylinder is installed at the bottom of the bottommost ladder cage unit, the bottommost ladder cage unit is provided with a steel corbel, the hydraulic cylinder is used to push the steel corbel to provide the jacking power of the ladder cage unit, and the top excess ladder cage unit is removed; a PLC controller is installed on the catwalk plate between the side wall of the foundation pit and the topmost ladder cage unit and is used to control the work of the hydraulic cylinder.

2. The deep foundation pit up-and-down passage jacking device according to claim 1, characterized in that, Support column piles are arranged below the catwalk plate and are used to support.

3. The deep foundation pit up-and-down passage jacking device according to claim 2, characterized in that, A support platform is fixed between the ladder cage units and the support column piles, the support platform is erected along with the deepening of the construction depth, is fixedly connected with the support column piles, and is provided with support rods used to support the ladder cage units.

4. The deep foundation pit up and down passage jacking device according to claim 3, characterized in that, The support platform includes a main beam and a secondary beam, the secondary beam is connected perpendicularly with the support column piles, the main beam is perpendicular to the secondary beam and encloses a frame around the outer side of the ladder cage units with the secondary beam, the support rods are arranged at the four corners of the frame, the support rods are hinged with the secondary beam, when the ladder cage units are seated on the support platform, the support rods are rotated to open and form a triangular structure at the four corners of the frame, when the ladder cage passes through the frame, the support rods are rotated to retract and coincide with the secondary beam.

5. The deep foundation pit up-and-down passage jacking device according to claim 4, characterized in that, The support platform is also provided with inclined beams, one end of the inclined beams is fixedly connected with the frame, and the other end is fixedly connected with the support column piles.

6. The deep foundation pit up-and-down passage jacking device according to claim 1, characterized in that, The topmost ladder cage unit is provided with a retractable treadle, the retractable treadle is used to connect the topmost ladder cage unit and the catwalk plate when the retractable treadle is opened.

7. The deep foundation pit up-and-down passage jacking device according to claim 6, characterized in that, The retractable treadle includes a fixed treadle and a sliding treadle, the fixed treadle is fixed in the ladder cage unit, the sliding treadle is installed above the fixed treadle, and the sliding treadle is slidably connected with the fixed treadle.

8. The deep foundation pit up-and-down passage jacking device according to claim 7, characterized in that, The bottom of the sliding treadle is provided with a slide rail, and the slide rail is fixedly connected with the fixed treadle.

9. The deep foundation pit up and down passage jacking device according to claim 7, characterized in that, Antiskid lines are arranged on the surfaces of the fixed treadle and the sliding treadle.

10. The deep foundation pit up-and-down passage jacking device according to claim 1, characterized in that, Adjacent ladder cage units are connected through bolts.

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