A detachable system for reserving a hole door of an enclosure and a construction method thereof

Abstract

The application discloses a detachable system for a reserved hole door of an enclosure and a construction method thereof, and at least comprises but is not limited to a supporting body, a first steel reinforcement cage and a second steel reinforcement cage; the first steel reinforcement cage and the second steel reinforcement cage are provided with connecting plates on the contact surfaces of the supporting body; the supporting body and the connecting plates are detachably connected; the detachable supporting body is arranged at the reserved hole door, so that the supporting body can be quickly disassembled and the disassembled supporting body can be recycled; the application does not need to break the thick diaphragm wall, does not affect the overall structure, guarantees the strength of the diaphragm wall structure, and can improve the slotting efficiency and slotting accuracy of the reserved hole door.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction, in particular to a detachable system for reserved door of enclosure structure and a construction method thereof. BACKGROUND

[0002] With the development of urban construction, more and more super-deep and super-thick underground continuous wall projects are built, and the breaking of the entrance and other auxiliary connecting area diaphragm wall is a key factor affecting the safety, quality and progress of the project. At the same time, due to the overweight of the concrete block after the breaking of the super-deep and super-thick underground continuous wall, the requirements for the transfer and hoisting method of the concrete block in the narrow station are very high, so it is also a key factor affecting the construction safety.

[0003] The current common method for breaking the diaphragm wall mainly includes two methods of diamond wire saw cutting and gun machine combined with manual operation. Diamond wire saw cutting is a method of cutting concrete by using high-speed rotating diamond wire rope. The gun machine breaking mainly uses strong impact force and crushing force to break the hard continuous wall concrete into small pieces.

[0004] The two process constructions have the following disadvantages: high quality and safety risk, more waste, not conducive to environmental protection, etc. Taking the wire saw cutting as an example, the existing technology mainly uses the operation platform to realize the wire saw cutting machine and electric hoist, which has high safety risk, destroys the existing structure, is easy to have cross operation, has high cost, high operation technical requirement, long construction period, difficult hoisting and is not conducive to environmental protection, etc. SUMMARY

[0005] The present application aims to provide a detachable system for reserved door of enclosure structure and a construction method thereof, which solves the problems of high safety risk, destruction of existing structure, easy cross operation, high cost, high operation technical requirement, long construction period, difficult hoisting and not conducive to environmental protection in the prior art.

[0006] The present application is realized by the following scheme:

[0007] A detachable system for reserved door of enclosure structure, at least including but not limited to a support body, a first steel reinforcement cage and a second steel reinforcement cage; the first steel reinforcement cage and the second steel reinforcement cage are provided with a connecting plate on the contact surface of the support body; the support body and the connecting plate are detachably connected.

[0008] Based on the structure of the detachable system for reserved door of enclosure structure, the first steel reinforcement cage is arranged on the upper end surface of the support body, the second steel reinforcement cage is arranged on the lower end surface of the support body, the connecting plate is provided with a connecting hole, the support body is provided with a locking hole matched with the connecting hole, and the support body and the connecting plate are connected as a whole by bolts.

[0009] Based on the structure of the detachable system for reserving a hole door of a surrounding structure described above, the support body comprises a side wall support part, a center support part; the center support part is arranged between the two side wall support parts, and a detachable filling layer is arranged between the side part support part and the center support part.

[0010] Based on the structure of the detachable system for reserving a hole door of a surrounding structure described above, the side wall support part comprises a first support vertical plate, a first support side plate and a first support end plate; the first support side plate is arranged in parallel in two, the first support vertical plate is arranged at the center position of the two first support side plates to form an I-shaped structure; the first support end plate is arranged on both sides of the I-shaped structure, and the first support end plate is arranged perpendicularly to the first support vertical plate and the first support side plate respectively; locking holes are uniformly arranged on the first support side plate.

[0011] Based on the structure of the detachable system for reserving a hole door of a surrounding structure described above, the center support part comprises a first support column, a second support column and a center filling layer, the center filling layer is arranged between the first support column and the second support column; the first support column and the second support column are the same in structure.

[0012] Based on the structure of the detachable system for reserving a hole door of a surrounding structure described above, the first support column comprises two support legs arranged in parallel, a cavity structure for pouring concrete is arranged between adjacent support legs, and the support leg comprises a second support vertical plate, a second support side plate and a second support end plate; the second support side plate is arranged in parallel in two, the second support vertical plate is arranged at the center position of the two second support side plates to form an I-shaped structure; the second support end plate is arranged on both sides of the I-shaped structure, and the second support end plate is arranged perpendicularly to the second support vertical plate and the second support side plate respectively; locking holes are uniformly arranged on the second support side plate.

[0013] Based on the structure of the detachable system for reserving a hole door of a surrounding structure described above, the end face of the first support column away from the side wall support part is the inner side, the end face of the first support column close to the side wall support part is the outer side, and positioning steel bars and limiting steel bars are arranged between the support legs of the first support column and the second support column on the inner side.

[0014] Based on the structure of the detachable system for reserving a hole door of a surrounding structure described above, the limiting steel bars are arranged between the second support vertical plates of the support legs on the inner side of the first support column and the second support column, and the limiting steel bars are arranged between the second support end plates of the support legs on the inner side of the first support column and the second support column; the positioning steel bars are used for positioning the center filling layer, so that there is a concave cavity in the center support part, and the limiting steel bars are used for limiting the end position of the center filling layer.

[0015] Based on the structure of the detachable system for the reserved hole door of the enclosure described above, the center filling layer includes a foam board and a wooden box, the foam board is arranged in the opposite wing plates of the second support end plate of the support leg on the inner side of the first support column and the second support column, the height of the foam board is the same as the height of the wing plate of the second support end plate, and the wooden box is arranged in the cavity between the two foam boards.

[0016] The present scheme also provides a construction method for a reserved hole door of an enclosure, comprising the following steps:

[0017] Step one: pouring the underground wall, according to the construction plan and combining the construction technical level and mechanical combination, a special trenching machine is used to excavate a narrow and long deep trench according to the design contour under the condition of slurry protection wall; after cleaning the trench, the reinforcement cage is placed in the trench and the underwater concrete is poured to build a section of reinforced concrete wall, and a plurality of wall sections are connected to form a continuous underground wall;

[0018] Step two: when the main ground wall construction reaches the entrance or wind pavilion, the section line needs to be accurately placed, the trench section needs to be accurately marked during trenching, and the reinforcement cage processing should be started at the same time;

[0019] Step three: setting the detachable system in the marked hole door area, inserting the concrete guide pipe into the avoidance groove, pouring the second reinforcement cage and the support leg, and then pouring the retaining wall and the support column in the concrete containing cavity;

[0020] In step three, the reinforcement cage processing is also included, which is processed on the reinforcement cage platform with distance scale, the upper and lower height lines corresponding to the hole position are accurately marked on the platform, one reinforcement cage processing is divided into three sections, and finally the bolt assembly connection is performed to form the final shape.

[0021] In summary, due to the adoption of the above technical scheme, the present application has the following advantages:

[0022] 1、The present scheme sets the detachable support body at the reserved hole door, which can realize the rapid disassembly of the support body, and the disassembled support body can also be recycled, the present scheme does not need to break the thick ground wall, does not affect the overall structure, ensures the strength of the ground wall structure, and improves the trenching efficiency and accuracy of the reserved hole door.

[0023] 2, The scheme is mainly used for breaking the range of enclosure structure construction in the connection area of the main foundation pit auxiliary structure; the method is simple in construction, the device is convenient to make, the involved process is existing, the device has high recycling rate after the completion of the main structure construction, the economic benefit is extremely obvious under the premise of shortening the period of breaking the hole, safety control, energy saving and environmental protection; with the device, the disturbance to the existing structure during the later breaking of the hole is small, the adverse effect on the main structure is reduced, and the safety of the underground structure is ensured.

[0024] 3, The scheme solves the problems of vibration, structure water leakage and difficult hoisting in narrow space caused by chiseling and cutting on the existing structure, improves the reusability of the enclosure structure material in deep foundation pit construction, and saves the spoil disposal cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall vertical cross-sectional structure in the application;

[0026] Figure 2 It is a schematic diagram of the structure of the connecting plate in the application;

[0027] Figure 3 It is a schematic diagram of the overall horizontal cross-sectional structure in the application;

[0028] Figure 4 It is an enlarged schematic diagram of the center support part in the application;

[0029] Figure 5 It is a schematic diagram of the overall structure of the side wall support part in the application;

[0030] Figure 6 It is a schematic diagram of the application scene of the dismounting system in the application;

[0031] Mark in the figure: 1, support body; 2, first steel reinforcement cage; 3, second steel reinforcement cage; 4, connecting plate; 5, concrete guide pipe; 11, locking hole; 12, side wall support part; 13, center support part; 121, first support vertical plate; 122, first support side plate; 123, first support end plate; 131, first support column; 132, second support column; 133, center filling layer; 134, support leg; 135, cavity structure; 136, second support vertical plate; 137, second support side plate; 138, second support end plate; 139, positioning steel reinforcement; 1310, limiting steel reinforcement; 1331, foam plate; 1332, wooden box; 41, connecting hole; 42, plate body structure; 43, avoiding groove. DETAILED DESCRIPTION

[0032] All the features disclosed in this specification, or all the steps of any method or process specified in this specification, can be combined in any combination, except combinations where at least some of such features and / or steps are mutually exclusive.

[0033] Any feature in the foregoing description, including any accompanying drawings, that is expressed in terms of an "aspect" or "embodiment" does not necessarily refer to the same aspect or embodiment, but can refer to a different aspect or embodiment. Unless otherwise indicated, any disclosed aspect or embodiment described herein can be combined with any other aspect or embodiment, including other aspects or embodiments described herein.

[0034] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. 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 does not indicate or imply that the device or element referred to must have a predetermined orientation, be constructed and operated in a predetermined orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In addition, the terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0036] Embodiment 1

[0037] As Figures 1-5 shown, the present application provides a technical solution:

[0038] A detachable system for a reserved hole door of an enclosure, which at least includes but is not limited to a support body 1, a first steel reinforcement cage 2 and a second steel reinforcement cage 3; the first steel reinforcement cage 2 and the second steel reinforcement cage 3 can be provided with a connecting plate 4 on the contact surface of the support body 1; the support body 1 and the connecting plate 4 are detachably connected.

[0039] Based on the above structure, by providing a detachable support body 1 at the reserved hole door, the support body 1 can be quickly disassembled, and the disassembled support body 1 can also be recycled. The present solution does not need to break the thick diaphragm wall, does not affect the overall structure, ensures the strength of the diaphragm wall structure, and also improves the slotting efficiency and slotting accuracy of the reserved hole door.

[0040] As an example, the first steel reinforcement cage 2 is arranged at the upper end surface of the support body 1, the second steel reinforcement cage 3 is arranged at the lower end surface of the support body 1, the connecting plate 4 is provided with a connecting hole 41, and the support body 1 is provided with a locking hole 11 matched with the connecting hole 41, and the support body 1 and the connecting plate 4 are connected as a whole by bolts.

[0041] Based on the above structure, by bolt connection, the support body 1 can be conveniently disassembled and installed later.

[0042] As an example, the support body 1 can include a side wall support part 12, a center support part 13; the center support part 13 is arranged between the two side wall support parts 12, and a detachable filling layer is arranged between the side wall support part and the center support part 13.

[0043] Based on the above structure, the side wall support part 12 and other ground connecting wall structures of the reserved hole door area are connected as a whole during pouring, the center support part 13 is arranged to provide main support force for the reserved hole door area, and the side wall support part 12 is arranged to form overall support for the reserved hole door area, and the filling layer only has a filling effect to avoid concrete pouring into it. On the one hand, the amount of concrete can be reduced, and on the other hand, the subsequent removal can be facilitated.

[0044] As an example, the side wall support part 12 can include a first support vertical plate 121, a first support side plate 122, and a first support end plate 123; the first support side plate 122 is arranged in parallel to two, the first support vertical plate 121 is arranged at the center position of the two first support side plates 122, forming a I-shaped structure; the first support end plate 123 is arranged on both sides of the I-shaped structure, and the first support end plate 123 is arranged perpendicular to the first support vertical plate 121 and the first support side plate 122 respectively; the locking holes 11 are uniformly arranged on the first support side plate 122;

[0045] Based on the above structure, by arranging the side wall support part 12 in an I-shaped structure, the support of the side wall of the reserved hole door area can be ensured, and by arranging the locking holes 11 on the first support side plate 122, the connection with the connecting holes 41 on the connecting plate 4 can be quickly connected as a whole; the first support end plate 123 is used to increase the contact area with the underground soil.

[0046] As an example, the center support part 13 can include a first support column 131, a second support column 132, and a center filling layer 133, and the center filling layer 133 is arranged between the first support column 131 and the second support column 132; the first support column 131 and the second support column 132 have the same structure;

[0047] The first support column 131 can include two parallel support legs 134, and a cavity structure 135 for pouring concrete is arranged between adjacent support legs 134; the support leg 134 includes a second support vertical plate 136, a second support side plate 137, and a second support end plate 138; the second support side plate 137 is arranged in parallel to two, the second support vertical plate 136 is arranged at the center position of the two second support side plates 137, forming a I-shaped structure; the second support end plate 138 is arranged on both sides of the I-shaped structure, and the second support end plate 138 is arranged perpendicular to the second support vertical plate 136 and the second support side plate 137 respectively; the locking holes 11 are uniformly arranged on the second support side plate 137;

[0048] The end face of the first support column 131 away from the side wall support part 12 is the inner side, and the end face of the first support column 131 close to the side wall support part 12 is the outer side. The positioning steel bars 139 and the limiting steel bars 1310 are arranged between the support legs 134 on the inner side of the first support column 131 and the second support column 132.

[0049] The limiting steel bars 1310 are arranged between the second support vertical plates 136 of the support legs 134 on the inner side of the first support column 131 and the second support column 132, and the limiting steel bars 1310 are arranged between the second support end plates 138 of the support legs 134 on the inner side of the first support column 131 and the second support column 132. The positioning steel bars 139 are used to position the center filling layer 133, so that the center support part 13 has an inner concave cavity. The limiting steel bars 1310 are used to limit the end position of the center filling layer 133.

[0050] Based on the above structure, the initial position of the center filling layer 133 is limited by the positioning steel bars 139, and the end position of the center filling layer 133 is limited by the limiting steel bars 1310. After the center filling layer 133 is added, the center support part 13 has an inner concave concrete containing cavity, that is, a cavity formed between the positioning steel bars 139 and the second support end part. The cavity is filled with concrete, which can form a retaining wall that is thinner than a conventional continuous wall. After completion, the relatively thin retaining wall can be broken by a simple mechanical structure by removing the center filling layer 133, which reduces the construction difficulty and improves the installation accuracy of the reserved hole door.

[0051] As an example, the center filling layer 133 can include a foam board 1331 and a wooden box 1332. The foam board 1331 is arranged in the opposite wings of the second support end plate 138 of the support leg 134 on the inner side of the first support column 131 and the second support column 132. The height of the foam board 1331 is the same as the height of the wing of the second support end plate 138. The wooden box 1332 is arranged in the cavity between the two foam boards 1331.

[0052] Based on the above structure, in this scheme, the area close to the inner side of the second support plate needs to be disassembled and screwed in the later stage, so foam is used for support, and the wooden box 1332 and the limiting steel bars 1310 are used for support at the center position. The foam board 1331 and the wooden box 1332 form a support surface with the same height as the entire support leg 134, which is used to resist the concrete containing cavity, so that the concrete forms a retaining wall at the specified position.

[0053] As an example, the limiting steel bars 1310, the positioning steel bars 139, and the filling layer are also arranged between the side wall support part 12 and the center support part 13, which are arranged the same as the center support part 13, and will not be described here.

[0054] As an example, the connecting plate 4 can include a plate body structure 42 and an avoiding groove 43, the connecting hole 41 and the avoiding groove 43 are arranged on the plate body structure 42, and the avoiding groove 43 is arranged at a position matched with the position of the supporting leg 134.

[0055] Based on the above structure, by arranging the avoiding groove 43, the concrete pipe 5 can be inserted, and the supporting leg 134 and the second reinforcement cage 3 at the lower part of the supporting leg 134 can be poured.

[0056] The scheme not only solves the problems of vibration, structure leakage, and difficult hoisting in a small space caused by chiseling and cutting on the existing structure, but also improves the reusability of the enclosure structure material in deep foundation pit construction and saves the cost of waste disposal.

[0057] Embodiment 2

[0058] As shown in Figure 1 The present application provides a technical scheme:

[0059] A construction method for an enclosure reserved hole door, comprising the following steps:

[0060] Step one: pouring the underground wall, according to the construction plan and combining the construction technical level and mechanical combination to carry out guide wall positioning, using special trenching machinery to excavate a long and narrow deep trench according to the design contour under the condition of slurry support wall; after cleaning the trench, the reinforcement cage is placed in the trench and the underwater concrete is poured to build a section of reinforced concrete wall. Connect several wall sections to form a whole to form a continuous underground wall.

[0061] Step two: when the main body ground wall is constructed to the entrance or the wind pavilion, the section line needs to be accurately placed, the trench section of this part should be accurately marked during trenching, and the reinforcement cage processing should be started at the same time.

[0062] Step three: setting the detachable system in the marked hole door area, inserting the concrete pipe 5 into the avoiding groove 43, pouring the second reinforcement cage 3 and the supporting leg 134, and then pouring the retaining wall and supporting column in the concrete accommodating cavity.

[0063] In step three, the reinforcement cage processing can also be included, which is processed on the reinforcement cage platform with distance scale, the upper and lower elevation lines corresponding to the hole position are accurately marked on the platform, one reinforcement cage processing is processed in three sections, and finally the bolt assembly connection is formed.

[0064] In the scheme, the foam board 1331, the wooden box 1332, the side wall supporting part 12 and the center supporting part 13 are all detachable structures, which are convenient for subsequent recycling. After the supporting structures such as the foam board 1331 and the wooden box 1332 are disassembled, only a thin retaining wall is reserved, which is convenient for breaking the retaining wall at the end.

[0065] The processing of the dismantling system of the scheme is more complex, and the decomposition steps are: first, the supporting vertical plate and the supporting side plate are processed in the factory, each supporting side plate is provided with 8 bolt holes, and the connecting plate is provided with 48 bolt holes; each supporting leg 134 needs to be split into two sections for processing, the middle bolt hole is processed into a long strip hole to reserve the loose bolt movable position, so that the upper column can be easily moved out after the subsequent loose bolt and the lower column; after assembling all the supporting legs 134, they are vertically placed on the processing platform, at this time, the positioning steel bars 139 are welded on the column web plate and a cavity (for filling the concrete on the soil side) is left, then the foam board 1331 is placed within the width range of all the wing plates, after the foam board 1331 is fixed, the wooden box 1332 is placed between the foam boards 1331, then the wooden box 1332 is fixed by using the limiting steel bars 1310. The connection between the main reinforcement of the steel cage and the capping steel plate adopts lap welding, and the main reinforcement is bent to 90° and welded on the top and bottom steel plates in advance. Finally, the first steel cage 2 and the second steel cage 3 are respectively bolted to the dismantling system to form.

[0066] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A detachable system for reserved openings in enclosure structures, characterized by: At least includes but is not limited to a support body, a first steel cage and a second steel cage; a connecting plate is provided on the contact surface between the first steel cage and the second steel cage and the support body; the support body and the connecting plate are detachably connected; the support body includes a side wall support portion and a central support portion; the central support portion is provided between the two side wall support portions, and a detachable filling layer is provided between the side wall support portion and the central support portion; the central support portion includes a first support column, a second support column and a central filling layer, and the central filling layer is provided between the first support column and the second support column; the first support column and the second support column have the same structure; the first support The end face of the support column away from the side wall support part is the inner side, and the end face of the first support column close to the side wall support part is the outer side. Positioning steel bars and limiting steel bars are arranged between the inner support legs of the first support column and the second support column; the limiting steel bars are arranged between the second support vertical plates of the inner support legs of the first support column and the second support column, and the limiting steel bars are arranged between the second support end plates of the inner support legs of the first support column and the second support column; the positioning steel bars are used to position the central filling layer so that there is a concave concrete accommodating cavity in the central support part, and the limiting steel bars are used to limit the end position of the central filling layer.

2. A detachable system for a reserved door in a retaining structure according to claim 1, characterized in that: The first steel cage is arranged on the upper end surface of the support body, the second steel cage is arranged on the lower end surface of the support body, the connecting plate is provided with a connecting hole, the support body is provided with a locking hole matching the connecting hole, and the support body and the connecting plate are connected as a whole by bolts.

3. A detachable system for a reserved door in a retaining structure according to claim 2, characterized in that: The side wall support portion includes a first support vertical plate, a first support side plate and a first support end plate; the first support side plates are arranged in parallel in two, and the first support vertical plate is arranged at the center position of the two first support side plates to form an I-shaped structure; the first support end plates are arranged on both sides of the I-shaped structure, and the first support end plates are respectively arranged perpendicular to the first support vertical plate and the first support side plate; the locking holes are evenly arranged on the first support side plates.

4. A detachable system for a reserved door in a retaining structure according to claim 3, characterized in that: The first support column includes two parallel supporting legs, and a cavity structure for pouring concrete is provided between adjacent supporting legs. The supporting legs include a second supporting vertical plate, a second supporting side plate and a second supporting end plate; the second supporting side plates are arranged in two parallel positions, and the second supporting vertical plate is arranged at the center position of the two second supporting side plates to form an I-shaped structure; the second supporting end plates are arranged on both sides of the I-shaped structure, and the second supporting end plates are respectively arranged perpendicular to the second supporting vertical plate and the second supporting side plate; the locking holes are evenly arranged on the second supporting side plates.

5. The detachable system for a reserved door in a retaining structure according to claim 4, characterized in that: The central filling layer includes a foam board and a wooden box. The foam board is arranged in the wing plates opposite to each other on the second support end plates of the inner support legs of the first support column and the second support column. The height of the foam board is the same as the height of the wing plates of the second support end plates. The wooden box is arranged in the cavity between the foam boards on both sides.

6. A construction method for a reserved door opening in a retaining structure, based on the detachable system for a reserved door opening in a retaining structure according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Concrete the underground wall. According to the construction plan and in combination with the construction technology and machinery combination, the guide wall is laid out and positioned. A specialized trenching machine is used to excavate a narrow, deep trench in 6-meter sections along the designed outline, using mud wall protection. After clearing the trench, a steel cage is placed in the trench and underwater concrete is poured to form a reinforced concrete wall section. Several wall sections are connected to form a continuous underground wall. Step 2: When the main ground-connected wall is constructed to the entrance or wind pavilion, the dividing line must be accurately laid out and the grooves must be accurately marked. The groove sections at this location must be grooved one by one and the steel cage processing must be started at the same time. Step 3: Place the removable system in the marked portal area, insert the concrete conduit into the avoidance channel, cast the second reinforcement cage and support legs, and then cast the retaining wall and support columns in the concrete receiving cavity; Step three also includes the processing of the steel cage, which is carried out on a steel cage platform with a distance scale. The upper and lower elevation lines corresponding to the opening position are accurately marked on the platform. A steel cage should be processed in three sections and finally assembled and connected with bolts to form the final shape.

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