Movable L-shaped steel guide wall

Abstract

The utility model discloses a movable L-shaped steel guide wall, relates to the technical field of diaphragm wall construction guide walls, and solves the problems of long construction period and high manufacturing cost caused by a support guide groove depending on a cast-in-place mode in the prior art. The hoisting device comprises L-shaped box bodies which are symmetrically arranged, the L-shaped box bodies are connected through positioning connecting pieces, a guide groove is formed between the L-shaped box bodies, and hoisting units are arranged on the L-shaped box bodies. The L-shaped box bodies are symmetrically arranged, and the positioning connecting pieces are arranged between the L-shaped box bodies, so that the guide grooves are formed between the L-shaped box bodies so as to be used for guiding in the follow-up diaphragm wall excavation process and protecting notches, meanwhile, the hoisting units are arranged, hoisting is directly conducted in place during construction, the construction period is shortened, and the device can be transferred to be repeatedly used after construction is finished; and the manufacturing cost and the cost are reduced. The steel guide wall is reliable in structure, convenient and efficient to construct and install, capable of shortening the construction period, capable of being transferred for multiple times, reducing manufacturing cost and saving cost and suitable for application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of guide walls for construction of anti-seepage walls, in particular to a movable L-shaped steel guide wall. Background Art

[0002] In water conservancy projects, anti-seepage reinforcement is the main engineering measure for dealing with dangerous reservoir dams. Commonly used anti-seepage reinforcement technologies in projects mainly include grouting anti-seepage reinforcement technology and anti-seepage wall reinforcement technology. Before the construction of the anti-seepage wall, a guide wall is first constructed on the ground as required, a hydraulic grab is used to form a groove, a mud wall is used to ensure the stability of the groove body, and then concrete is poured to form an anti-seepage wall. In conventional construction, most cast-in-place reinforced concrete guide walls are used to guide, protect the groove and bear the load-bearing retaining wall during the construction of the anti-seepage wall. However, the cast-in-place method has many construction procedures, resulting in a long construction period and slow construction progress. At the same time, the cast-in-place guide wall method is expensive. The guide wall produced by the cast-in-place construction can only be abandoned or demolished after the anti-seepage wall is formed, and cannot be used in a turnover manner, resulting in high costs and waste of resources.

[0003] The Chinese utility model patent with publication number CN207775807U discloses a concrete anti-seepage wall guide groove structure, which includes a reinforced concrete guide groove, cap concrete and a concrete anti-seepage wall; the reinforced concrete guide groove is located inside a hydropower or water conservancy building, and includes a left and right groove body symmetrical about the axis of the concrete anti-seepage wall; the groove body cross-sectional shape of the reinforced concrete guide groove includes an L-shape, a ]-shape or a combination of a trapezoid and a rectangle; the cap concrete is located above the concrete anti-seepage wall, and its upper end face is flush with the upper end face of the reinforced concrete guide groove. In this prior art, there is also the problem of long construction period and high cost caused by the cast-in-place method. Utility Model Content

[0004] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a movable L-shaped steel guide wall, which solves the problem of long construction period and high cost caused by relying on cast-in-place support guide grooves in the prior art.

[0005] The technical solution of the utility model is implemented as follows: a movable L-shaped steel guide wall comprises symmetrically arranged L-shaped boxes, which are connected by positioning connectors to form guide grooves between the L-shaped boxes, and each L-shaped box is provided with a hoisting unit.

[0006] Preferably, the L-shaped box includes a vertical guide wall arranged vertically, and the lower end of the vertical guide wall is vertically connected to the transverse wall foundation; the vertical guide walls of adjacent L-shaped boxes are arranged in parallel, and the two are connected by a positioning connector to form a guide groove.

[0007] Preferably, the vertical guide wall and the transverse wall foundation are both steel box structures, and are both provided with X-shaped grilles inside. A rib partition is provided on the top of the transverse wall foundation, and the rib partition is connected to the vertical guide wall.

[0008] Preferably, the positioning connector comprises a pair of symmetrically arranged right-angle bases, which are connected by connecting rods, and a pad for supporting the right-angle base is provided on the vertical guide wall, and the right-angle base is welded or bolted to the pad.

[0009] Furthermore, a stud is fixed on the right-angle base, both ends of the connecting rod are provided with internal threads, and are threadedly connected to the stud through the internal threads, and a locking bolt for matching with the stud is threadedly connected on the connecting rod. A centerline positioning block is provided in the middle of the connecting rod.

[0010] Preferably, the positioning connector comprises a rectangular steel plate, and the two ends of the rectangular steel plate are respectively welded or bolted to the two side walls of the vertical guide wall. A centering groove or a centering circular hole is provided in the middle of the rectangular steel plate.

[0011] Preferably, the hanging unit comprises a rail groove fixedly arranged on the side wall of the vertical guide wall and / or the transverse wall base, and a hanging ring is slidably arranged on the rail groove.

[0012] The beneficial effects of the utility model are as follows: by symmetrically arranging L-shaped boxes and arranging positioning connectors between the L-shaped boxes, guide grooves are formed between the L-shaped boxes, so as to be used for guidance and protection of the grooves in the subsequent excavation process of the anti-seepage wall. At the same time, a hoisting unit is arranged, and the box is directly hoisted into place during construction, which reduces the construction period. After the construction is completed, the box can be transferred and reused, which reduces the construction cost. Further, by arranging positioning connectors, it is convenient to disassemble, connect and transfer the L-shaped boxes, and at the same time, it can form a strong support for the guide groove between the two L-shaped boxes. Adjustable connecting rods and studs are arranged to facilitate the adjustment of the spacing of the guide grooves to meet the construction requirements of anti-seepage walls of different widths. The steel guide wall structure is reliable, the construction and installation are convenient and efficient, the construction period is shortened, and the box can be transferred and reused multiple times, which reduces the construction cost and saves costs, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of a three-dimensional structure connected by a positioning connector of the utility model;

[0015] Figure 2 It is a schematic diagram of a three-dimensional structure connected by another positioning connector of the utility model;

[0016] Figure 3This is a schematic diagram of the X-shaped grille structure of the utility model;

[0017] Figure 4 For this utility model Figure 2 An enlarged schematic diagram of

[0018] Figure 5 This is a schematic diagram of the structure of the hoisting unit of the utility model;

[0019] In the figure: 1: L-shaped box, 2: positioning connector, 3: lifting unit, 4: vertical guide wall, 5: horizontal wall foundation, 6: X-shaped grille, 7: rib partition, 8: right-angle base, 9: connecting rod, 10: rectangular steel plate, 11: pad, 12: center line positioning block, 13: centering groove, 14: stud, 15: locking bolt, 16: rail groove, 17: lifting ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 , 2 As shown, in Example 1, a movable L-shaped steel guide wall comprises a symmetrically arranged L-shaped box 1, the L-shaped boxes 1 are connected by positioning connectors 2, so that guide grooves are formed between the L-shaped boxes 1, and a hoisting unit 3 is provided on each L-shaped box 1. Specifically, in this embodiment, the L-shaped box 1 comprises a vertically arranged vertical guide wall 4, and the lower end of the vertical guide wall 4 is vertically connected to the horizontal wall foundation 5. The vertical guide walls 4 of adjacent L-shaped boxes 1 are arranged in parallel, and the two vertical guide walls 4 are connected by positioning connectors 2 to form a guide groove. In this embodiment, a guide groove is provided for guidance and protection of the notch during the subsequent excavation process of the anti-seepage wall, and a hoisting unit is provided, so that it can be directly hoisted into place during construction, which reduces the construction period, and can be transferred and reused after the construction is completed, which reduces the construction cost.

[0022] During the actual construction, the location of the steel guide wall is firstly laid out according to the location of the anti-seepage wall, and then the soil is excavated, compacted and leveled to form a placement reference surface, and then the steel guide wall is lowered by connecting the crane hook to the lifting unit for lifting, and the horizontal wall foundation is placed on the leveled placement reference surface, and the horizontal position is adjusted to make the guide groove correspond to the location of the anti-seepage wall to be constructed. The excavated area is backfilled with soil and the backfill is ensured to be dense. After backfilling, the position of the steel guide wall is rechecked, and finally the guide groove is used for subsequent trenching construction and anti-seepage wall construction.

[0023] As a further implementation method, the vertical guide wall 4 and the transverse wall foundation 5 are both steel box structures. In this embodiment, the vertical guide wall and the transverse wall foundation are internally connected, and the outer steel box structures of the two are sealed and welded by 16mm thick Q235 steel plates, which not only meets the pressure strength requirements, but also can prevent water or other impurities from entering the interior and affecting subsequent use. And in this embodiment, if Figure 3 As shown, X-shaped grilles 6 are provided inside the vertical guide wall 4 and the transverse wall base 5 to form support and improve the overall strength.

[0024] In addition, a plurality of rib partitions 7 are provided on the top of the transverse wall foundation 5. In this embodiment, the rib partitions are vertically fixed on the upper surface of the transverse wall foundation, and the rib partitions 7 are connected to the vertical guide wall 4. The rib partitions can form a connection between the vertical guide wall 4 and the transverse wall foundation 5, thereby improving the strength and stability of the structural connection. On the other hand, the vertical rib partitions can also increase the friction between the steel guide wall and the backfill soil in the later stage, thereby avoiding displacement of the steel guide wall during the construction of the anti-seepage wall in the later stage, thereby affecting the subsequent construction.

[0025] As a further embodiment, Figure 5 As shown, the hoisting unit 3 includes a rail groove 16 fixed on the side wall of the vertical guide wall 4 and / or the transverse wall foundation 5, and a lifting ring 17 is slidably provided on the rail groove 16. In this embodiment, the rail groove is vertically welded and fixed to the side wall of the vertical guide wall. The lifting ring can be cut from a steel plate. The lifting ring includes an anti-slip portion 18, a sliding portion 19, and a lifting ring portion 20 that are integrally formed and arranged in sequence. The sliding portion slides with the rail groove. During hoisting, the lifting ring 17 moves upward as a whole, and the lifting ring portion at the upper end is higher than the upper surface of the vertical guide wall, which is convenient for hanging with the hook of the crane. After the installation is completed, the lifting ring moves downward so that the whole is lower than the upper surface of the vertical guide wall to avoid hindering the construction operation. As an optional method, the hoisting unit can be optionally arranged on the vertical guide wall or the transverse wall foundation, and can also be optionally arranged on the vertical guide wall and the transverse wall foundation, so as to meet different hoisting requirements for the overall hoisting or split hoisting of the two L-shaped boxes 1.

[0026] Embodiment 2, on the basis of embodiment 1, as Figure 2 , 3 As shown in , 4, the positioning connector 2 includes a pair of symmetrically arranged right-angle bases 8, which are connected by connecting rods 9, and a pad 11 for supporting the right-angle base 8 is provided on the vertical guide wall 4. In this embodiment, the pad is a right-angle pad corresponding to the right-angle base, which is welded and fixed to the side wall of the vertical guide wall 4, and the right-angle base 8 is welded or bolted to the pad 11. The right-angle base is set in a right-angle form, which not only satisfies the bolt connection of the right-angle base and the pad from the side wall direction of the vertical guide wall, but also can use the right-angle base to support from the opposite sides of the two vertical guide walls, thereby improving the stability of the connection. At the same time, in the present application, the two right-angle bases are connected by two connecting rods, and the double-rod form has better anti-bending performance, higher support strength and stability.

[0027] As a further implementation method, in order to meet the needs of more usage scenarios, a stud 14 is fixed on the right-angle base 8, and both ends of the connecting rod 9 are provided with internal threads, and are threadedly connected to the stud 14 through the internal threads. In this embodiment, the internal threads at both ends of the connecting rod are rotated in opposite directions, and the connecting rod 9 is threadedly connected with a locking bolt 15 for cooperating with the stud 14. The locking bolt is threadedly connected to the side wall of the connecting rod and can abut against the internal stud when rotating. When in use, according to the construction needs of the anti-seepage wall of different widths, the locking bolt is tightened and the connecting rod is rotated to adjust the spacing of the right-angle base. Then the spacing of the guide groove is adjusted to meet the construction needs of the anti-seepage wall of different widths.

[0028] As a further optional embodiment, a centerline positioning block 12 is provided in the middle of the connecting rod 9, and a groove is provided in the middle of the connecting rod. The centerline positioning block is engaged with the groove and the connecting rod can rotate relative to the centerline positioning block. By providing the centerline positioning block, the centerline position of the guide groove can be marked and aligned in conjunction with a level or construction layout during hoisting, meeting the positioning needs of on-site installation.

[0029] Embodiment 3, on the basis of embodiment 1, as Figure 1 As shown, the positioning connector 2 includes a rectangular steel plate 10, and the two ends of the rectangular steel plate 10 are respectively welded or bolted to the side walls of the two vertical guide walls 4. In this embodiment, the two vertical guide walls are directly connected using a rectangular steel plate to limit the distance between the two vertical guide walls. In this embodiment, the thickness of the rectangular steel plate is greater than or equal to 15 mm to improve the bending resistance and avoid bending and deformation of the rectangular steel plate during lifting or moving, which affects the width of the guide groove. In addition, a centering groove 13 or a centering circular hole is provided in the middle of the rectangular steel plate 10. The centering groove or centering circular hole for marking the centerline position is provided on the rectangular steel plate, which can be used for line laying and comparison during lifting to improve the accuracy of the installation position.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A movable L-shaped steel guide wall, comprising a symmetrically arranged L-shaped box (1), characterized in that: The L-shaped boxes (1) are connected to each other via positioning connectors (2), so that guide grooves are formed between the L-shaped boxes (1), and each L-shaped box (1) is provided with a hoisting unit (3).

2. The movable L-shaped steel guide wall according to claim 1 is characterized in that: The L-shaped box (1) comprises a vertical guide wall (4) arranged vertically, the lower end of the vertical guide wall (4) being vertically connected to a transverse wall base (5); the vertical guide walls (4) of adjacent L-shaped boxes (1) are arranged in parallel, and the two are connected via a positioning connector (2) to form a guide groove.

3. The movable L-shaped steel guide wall according to claim 2 is characterized in that: The vertical guide wall (4) and the transverse wall base (5) are both steel box structures, and are both provided with X-shaped grilles (6) inside.

4. The movable L-shaped steel guide wall according to claim 3 is characterized in that: A rib partition (7) is provided on the top of the transverse wall foundation (5), and the rib partition (7) is connected to the vertical guide wall (4).

5. The movable L-shaped steel guide wall according to any one of claims 2 to 4, characterized in that: The positioning connection member (2) comprises a pair of symmetrically arranged right-angle bases (8), the right-angle bases (8) being connected via a connecting rod (9), a pad (11) for supporting the right-angle base (8) being provided on the vertical guide wall (4), and the right-angle base (8) and the pad (11) being welded or bolted.

6. The movable L-shaped steel guide wall according to claim 5, characterized in that: The right-angle base (8) is fixedly provided with a stud (14), both ends of the connecting rod (9) are provided with internal threads and are threadedly connected to the stud (14) via the internal threads, and a locking bolt (15) for cooperating with the stud (14) is threadedly connected to the connecting rod (9).

7. The movable L-shaped steel guide wall according to claim 6, characterized in that: A centerline positioning block (12) is provided in the middle of the connecting rod (9).

8. The movable L-shaped steel guide wall according to any one of claims 2 to 4, characterized in that: The positioning connection member (2) comprises a rectangular steel plate (10), and two ends of the rectangular steel plate (10) are respectively welded or bolted to the side walls of the two vertical guide walls (4).

9. The movable L-shaped steel guide wall according to claim 8, characterized in that: A centering groove (13) or a centering circular hole is provided in the middle of the rectangular steel plate (10).

10. The movable L-shaped steel guide wall according to claim 2, 7 or 9, characterized in that: The hanging unit (3) comprises a rail groove (16) fixedly arranged on the side wall of the vertical guide wall (4) and / or the horizontal wall base (5), and a hanging ring (17) is slidably arranged on the rail groove (16).

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