Adapted to servo-type steel support diaphragm walls, installation methods, and rebar cage hoisting equipment.

Abstract

This invention relates to a diaphragm wall adapted to servo-type steel supports, its installation method, and a rebar cage hoisting device. Belonging to the field of building construction technology, this invention addresses the shortcomings of existing technologies where the diaphragm wall is poured first, followed by the installation of the waler. This subsequent waler installation process is time-consuming, labor-intensive, and inefficient. Furthermore, due to the large size of the rebar cage, tilting and deformation may occur during hoisting. The invention includes: a rebar cage, concrete, and an H-shaped waler; the concrete encases the rebar cage; the H-shaped waler includes vertical supports and a slotted beam. Two vertical supports are fixed parallel to each other on the surface of the rebar cage. The slotted beam is arranged between the two vertical supports, perpendicular to them, and fixedly connected to both the vertical supports and the outer surface of the rebar cage. Several bolt holes are provided on the slotted beam. By placing the waler on the precast rebar cage, construction time for the steel waler is saved, significantly improving the construction efficiency of the foundation pit.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and in particular relates to a diaphragm wall adapted to servo-type steel support, an installation method, and a steel cage hoisting equipment. Background Technology

[0002] With increasingly stringent deformation control requirements in deep foundation pit engineering, the internal support system using servo-driven steel supports has gradually gained widespread application. This technology offers numerous advantages, including active control of foundation pit deformation and recyclability of the equipment. However, since steel supports are typically connected by bolts, the assembly process is time-consuming, leading to significant deformation of the deep foundation pit over time and causing project delays. Particularly in narrow foundation pits, the lack of sufficient working space further prolongs the assembly and splicing time of the servo-driven steel supports. In foundation pits with strict deformation control, diaphragm walls are a commonly used form of foundation pit support. During the construction and casting of diaphragm walls, the binding and hoisting of the reinforcing cage are critical issues. Therefore, the shorter the installation time of the steel supports, the better. However, in existing technologies, walers need to be installed on the diaphragm wall before installing the steel supports, and the installation of the walers in the later stages of the diaphragm wall installation requires excavating the foundation pit, which takes considerable time. Furthermore, due to the large size of the reinforcing cage, tilting and deformation may occur during hoisting. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a diaphragm wall adapted to servo-type steel supports, an installation method, and a rebar cage hoisting device. This addresses the problems in existing technologies where the diaphragm wall is poured first, and then the walers are installed later. This process is time-consuming, labor-intensive, and inefficient. Additionally, due to the large size of the rebar cage, tilting and deformation may occur during hoisting.

[0004] To achieve the above objectives, this invention provides a diaphragm wall adapted to servo-type steel supports, comprising: a reinforcing cage, concrete, and an H-shaped waler; the concrete encloses the reinforcing cage; the H-shaped waler includes vertical supports and a slotted beam, two of the vertical supports are fixed parallel to each other on the surface of the reinforcing cage, the slotted beam is arranged between the two vertical supports and is perpendicular to the vertical supports, the slotted beam is fixedly connected to the vertical supports, and the slotted beam is fixedly connected to the outer surface of the reinforcing cage; the slotted beam has several bolt holes for connecting steel supports. Because the waler is prefabricated on the reinforcing cage, the construction time of the steel waler is saved, greatly improving the construction efficiency of the foundation pit.

[0005] Optionally, a plurality of slotted crossbeams are provided between the two vertical supports, and each slotted crossbeam has a plurality of slots. The slots are used for positioning the steel supports, which are then placed precisely within the slots, and finally connected together with high-strength bolts. This improves the efficiency of subsequent steel support installation.

[0006] Optionally, the diaphragm wall with servo-compatible steel support further includes an isolation groove and anchor bolts. The isolation groove is placed between the H-shaped waler and the reinforcing cage, the H-shaped waler is placed in the isolation groove, and the anchor bolts pass through the H-shaped waler and the isolation groove before being welded to the reinforcing cage. The isolation groove is used to isolate the concrete during the pouring of the diaphragm wall, preventing concrete from entering the bolt holes and blocking them during the pouring process.

[0007] Optionally, the isolation groove is a concrete groove. It can integrate well with the diaphragm wall concrete, and the same material prevents the effects of thermal expansion and contraction.

[0008] Optionally, the vertical support and the slot beam are made of channel steel or I-beams, and the support is made of shaped steel, which is convenient to process and reduces costs.

[0009] The present invention provides a method for installing a diaphragm wall with an adaptable servo-type steel support, comprising the following steps:

[0010] S01. Pour concrete into a concrete trough;

[0011] S02. Place the H-shaped waler in the concrete trough, and place the H-shaped waler and the concrete trough together on the surface of the reinforcing cage; after passing the anchor bolts through the H-shaped waler and the concrete trough in sequence, weld the anchor bolts to the reinforcing cage;

[0012] S03. Hoist the steel cage into the designated trench section;

[0013] S04. Fill with concrete to enclose the reinforcing cage.

[0014] By installing the H-shaped walers onto the reinforcing cage first, time is saved from installing the steel walers on the poured diaphragm wall, thus saving time for the subsequent installation of steel supports. It also avoids the need for waler splicing during steel support installation at the excavation site, significantly improving the construction efficiency of the foundation pit. Furthermore, the prefabricated H-shaped walers on the reinforcing cage enhance its strength, making it less prone to deformation during hoisting.

[0015] Optionally, step S01 includes the following steps:

[0016] S011. Use the H-shaped waler as a mold to pour a U-shaped concrete trough;

[0017] S012. Several bolt holes for connecting steel supports are made on the slotted crossbeam of the H-shaped waler.

[0018] By using the H-shaped waler as a mold, the U-shaped concrete trough and the H-shaped waler are a better match.

[0019] This invention provides a rebar cage hoisting device for a diaphragm wall adapted to servo-type steel supports, comprising: a crane and two fine-tuning mechanisms. The two fine-tuning mechanisms are Y-shaped and mounted on the crane. Each fine-tuning mechanism has a hoisting rope at both ends, which is used to suspend the rebar cage. The fine-tuning mechanism can adjust the length of the hoisting ropes at both ends. Each fine-tuning mechanism includes a mounting base, a lifting ring, guide wheels, a rope take-up roller, a rotary drive, and a reducer. The lifting ring is fixed to the mounting base, and several guide wheels are symmetrically rotatably mounted on the mounting base. The rope take-up roller is rotatably mounted in the middle position of the mounting base. The rotary drive and the reducer are fixed to the mounting base. The rotary drive is connected to the rope take-up roller via a reduction gear. The two hoisting ropes pass over the guide wheels at both ends of the mounting base and finally wind around the rope take-up roller, with the two ropes winding in opposite directions. A separator wheel is fixed at the center of the rope take-up roller, and the two hoisting ropes pass over the guide wheels at both ends and finally wind around the two sides of the separator wheel.

[0020] The H-shaped waler is prefabricated on the reinforcing cage, which results in an uneven mass distribution and the center of gravity shifting away from the center. This shift causes the cage to tilt towards the H-shaped waler during installation. Therefore, any deviation in the hoisting rope binding position can easily lead to the cage tilting during lifting, making it difficult to place the cage into the designated slot. However, the inclusion of two fine-tuning mechanisms and four adjustable ropes simultaneously suspending the cage allows for precise adjustment of the cage's position during hoisting, preventing tilting or shifting. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a steel cage pre-installed with walers according to an embodiment of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the H-shaped waler installation method according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the installation position of the isolation trench according to an embodiment of the present invention;

[0024] Figure 4 This invention relates to a servo-supported steel reinforcement cage hoisting device for diaphragm walls.

[0025] A schematic diagram of the three-dimensional structure;

[0026] Figure 5This is a three-dimensional structural schematic diagram (I) of the fine-tuning mechanism according to an embodiment of the present invention;

[0027] Figure 6 This is a three-dimensional structural schematic diagram (I) of the fine-tuning mechanism according to an embodiment of the present invention. Detailed Implementation

[0028] Specific embodiments of the present invention will now be described in detail. It should be noted that the embodiments described herein are for illustrative purposes only and are not intended to limit the invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other instances, well-known circuits, software, or methods have not been specifically described to avoid obscuring the invention.

[0029] Throughout this specification, references to "an embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the invention. Therefore, the phrases "in an embodiment," "in an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0030] Please see Figures 1-3 This invention provides an embodiment of a mobile construction waste detection device, comprising: a diaphragm wall adapted to servo-type steel supports, including: a reinforcing cage 10, concrete, and an H-shaped waler; the concrete encloses the reinforcing cage 10; the H-shaped waler includes vertical supports 7 and slotted beams 6, two vertical supports 7 are fixed parallel to each other on the surface of the reinforcing cage 10, the slotted beams 6 are arranged between the two vertical supports 7, and the slotted beams 6 and the vertical supports 7 are perpendicular to each other, the slotted beams 6 and the vertical supports 7 are fixedly connected, the slotted beams 6 and the outer surface of the reinforcing cage 10 are fixedly connected, and the slotted beams 6 have a plurality of bolt holes 601 for connecting steel supports. By setting the waler on the prefabricated reinforcing cage 10, the construction time of the steel waler is saved, which greatly improves the construction efficiency of the foundation pit.

[0031] In this embodiment, please refer to Figures 1-3A plurality of slotted beams 6 are provided between the two vertical supports 7, and each slotted beam 6 has a plurality of slots. The slots are used for positioning the steel supports, which are then placed precisely within the slots, and finally connected together with high-strength bolts. This improves the efficiency of subsequent steel support installation.

[0032] In this embodiment, please refer to Figures 1-3 The diaphragm wall with servo-compatible steel support further includes an isolation groove 9 and an anchor bolt 5. The isolation groove 9 is placed between the H-shaped waler and the reinforcing cage 10, with the H-shaped waler placed within the isolation groove 9. The anchor bolt 5 passes through the H-shaped waler and the isolation groove 9 and is then welded to the reinforcing cage 10. The isolation groove 9 is used to isolate the concrete during the pouring of the diaphragm wall, preventing concrete from entering the bolt holes 601 and blocking them.

[0033] In this embodiment, please refer to Figures 1-3 The isolation groove 9 is a concrete groove. It can be well integrated with the diaphragm wall concrete, and the same material prevents the effects of thermal expansion and contraction.

[0034] In this embodiment, please refer to Figures 1-3 The vertical support 7 and the slot beam 6 are made of channel steel or I-beams, and the support is made of shaped steel, which is convenient to process and reduces costs.

[0035] In this embodiment, please refer to Figures 1-3 The present invention provides a method for installing a diaphragm wall adapted to a servo-type steel support, comprising the following steps:

[0036] S01. Pour concrete into a concrete trough;

[0037] S02. Place the H-shaped waler in the concrete trough, and place the H-shaped waler and the concrete trough together on the surface of the reinforcing cage 10; after passing the anchor bolts 5 through the H-shaped waler and the concrete trough in sequence, weld the anchor bolts 5 and the reinforcing cage 10 together.

[0038] S03. Hoist the steel cage 10 into the designated trench section;

[0039] S04. Fill with concrete to enclose the reinforcing cage 10.

[0040] By installing the H-shaped walers onto the reinforcing cage 10 first, time is saved from installing the steel walers on the poured diaphragm wall, thus saving time for the subsequent installation of steel supports. This also avoids the need for waler splicing during steel support installation at the excavation site, significantly improving the construction efficiency of the foundation pit. Furthermore, the prefabricated H-shaped walers on the reinforcing cage 10 enhance its strength, making it less prone to deformation during hoisting.

[0041] In this embodiment, please refer to Figures 1-3 S01 includes the following steps:

[0042] S011. Use the H-shaped waler as a mold to pour a U-shaped concrete trough;

[0043] S012. Several bolt holes 601 for connecting steel supports are made on the slotted crossbeam 6 of the H-shaped waler.

[0044] By using the H-shaped waler as a mold, the U-shaped concrete trough and the H-shaped waler are a better match.

[0045] In this embodiment, please refer to Figures 4-6 The present invention provides a hoisting device for a steel cage 10 in a diaphragm wall adapted to servo-type steel support, comprising: a crane 1 and two fine-tuning mechanisms 2, the two fine-tuning mechanisms being Y-shaped and hoisted on the crane 1, each fine-tuning mechanism 2 having a hoisting rope 210 at both ends, the hoisting rope 210 being used to suspend the steel cage 10, and the fine-tuning mechanism 2 being able to adjust the length of the hoisting rope 210 at both ends. The fine-tuning mechanism 2 includes a mounting base 201, a lifting ring 202, guide wheels 205, a take-up roller 206, a rotary drive component 203, and a reducer 204. The lifting ring 202 is fixed on the mounting base 201. Several guide wheels 205 are symmetrically rotatably mounted on the mounting base 201. The take-up roller 206 is rotatably mounted in the middle position of the mounting base 201. The rotary drive component 203 and the reducer 204 are fixed on the mounting base 201. The rotary drive component 203 is connected to the take-up roller 206 via the reduction gear. Two lifting ropes 210 pass over the guide wheels 205 at both ends of the mounting base 201 and finally wrap around the take-up roller 206, with the two lifting ropes 210 winding in opposite directions. A separator wheel 2061 is fixed at the center of the take-up roller 206. The two lifting ropes 210 pass over the guide wheels 205 at both ends and finally wrap around the two sides of the separator wheel 2061. The rotary drive component 203 can be an electric motor or a hydraulic motor. When the rotary drive component 203 rotates, the rope take-up roller 206 takes in the rope 210 on one side while loosening the rope 210 on the other side, thereby adjusting the length difference between the two ropes 210.

[0046] The H-shaped waler is prefabricated on the reinforcing cage 10, which will cause the mass distribution on the reinforcing cage 10 to become uneven, and the center of gravity will no longer be in the center of the reinforcing cage 10. The installation will shift towards the H-shaped waler. Therefore, if there is any deviation in the binding position of the reinforcing cage 10 and the lifting ropes 210 during hoisting, the reinforcing cage 10 is prone to tilting, making it difficult to place the reinforcing cage 10 into the designated slot. Because two fine-tuning mechanisms 2 are provided, and four lifting ropes 210 simultaneously suspend the reinforcing cage 10, the length of which is adjustable, the position of the reinforcing cage 10 can be well adjusted during hoisting, preventing the reinforcing cage 10 from shifting or tilting.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A diaphragm wall adapted to serve as a steel bracing, characterized by, The utility model relates to a kind of ground connected wall of adaptive servo type steel support, including: Steel cage, concrete and H-shaped surrounding purlin; The concrete wraps the steel cage; The H-shaped surrounding purlin includes vertical support and slot crossbeam, two vertical supports are fixed in the surface of the steel cage, the slot crossbeam is arranged between two vertical supports, and the slot crossbeam and the vertical support are perpendicular to each other, the slot crossbeam and the vertical support are fixedly connected, the slot crossbeam and the outer surface of the steel cage are fixedly connected, and a plurality of bolt holes are formed in the slot crossbeam; It also includes isolation groove and anchor screw, the isolation groove is placed between the H-shaped surrounding purlin and the steel cage, the H-shaped surrounding purlin is placed in the isolation groove, and the anchor screw is welded on the steel cage after passing through the H-shaped surrounding purlin and the isolation groove.

2. The adapted servo steel braced diaphragm wall according to claim 1, characterized in that: A plurality of slot crossbeams are arranged between two vertical supports, and the slot crossbeam is provided with a plurality of slots.

3. The adapted servo steel braced diaphragm wall according to claim 2, characterized in that: The isolation groove is a concrete groove.

4. The adapted servo steel braced diaphragm wall according to claim 1, wherein: The vertical support and the slot crossbeam are made of channel steel or I-beam.

5. A method of installing a diaphragm wall adapted to serve as a steel brace, characterized in that, The ground connected wall of adaptive servo type steel support is suitable for any one of claims 1-4, comprising the following steps: S01, pouring concrete groove with concrete; S02, place H-shaped surrounding purlin in the concrete groove, place the H-shaped surrounding purlin and concrete groove on the surface of the steel cage;After passing through the H-shaped surrounding purlin and concrete groove with anchor screw in sequence, anchor screw and the steel cage are welded together; S03, hoist the steel cage into the designated slot section; S04, fill the concrete, so that the concrete wraps the steel cage.

6. The method of installing a diaphragm wall with adapted servo steel bracing of claim 5, wherein, The S01 includes the following steps: S011, use H-shaped surrounding purlin as mold to pour a U-shaped concrete groove; S012, form a plurality of bolt holes for connecting steel support on the slot crossbeam of H-shaped surrounding purlin.

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