Enclosure structure for deep foundation pit open caisson

Abstract

The utility model relates to the technical field of foundation pit open caisson enclosure structures, and discloses a deep foundation pit open caisson enclosure structure which comprises four edge supporting strips used for being erected at the corners of an open caisson, and a plurality of base holes are fixedly formed in the inner side walls of the edge supporting strips in a welded mode. Adjusting supporting rods are arranged between the base holes and used for supporting and fixing the position between the two edge supporting strips, inserting grooves are formed in the edge supporting strips, and the fence further comprises a plurality of enclosure supporting plates inserted between the inserting grooves. By means of modular design, the structure is simple, assembly is convenient, installation can be fast, stacking installation can be achieved, good supporting force is formed for the deep foundation pit open caisson after an enclosure structure is formed, collapse of the deep foundation pit open caisson is avoided, the internal moving space is wider after installation is completed, and follow-up construction of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of retaining structures for deep foundation pit caissons, in particular to a retaining structure for deep foundation pit caissons. Background Art

[0002] During the construction of deep foundation pit caissons such as elevator shafts, it is necessary to support the inner wall of the wall. Conventionally, the enclosure is carried out through a reinforced cement structure, but such construction has a slow effect and high cost. In addition, it will result in a smaller movable area in the shaft with a relatively small cross-section, restricting the construction equipment and the number of construction workers and being unfavorable for further improving the construction efficiency. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is: in order to overcome the problems existing above, a retaining structure for deep foundation pit caissons is provided, which solves the above problems.

[0004] The utility model solves its technical problems by adopting the following technical solutions:

[0005] A retaining structure for deep foundation pit caissons includes four rib support bars for standing at the corners of the caisson. A number of base holes are fixedly welded on the inner side wall of the rib support bars. An adjusting support rod is arranged between the base holes to support and fix the position between two rib support bars. A slot is arranged on the rib support bars, and a number of retaining support plates are further included and inserted between the slots.

[0006] Preferably, insertion pieces are fixedly welded at both ends of the retaining support plate, and the insertion pieces are inserted into the slots. After the retaining support plates are stacked and inserted in place, the outer side wall of the retaining support plate is flush with the outer side wall of the rib support bar, so that the retaining support plate can effectively fit on the inner wall of the foundation pit caisson and maintain good supporting force.

[0007] Preferably, the adjusting support rod includes two screw rods and a screw rod barrel. The screw rods are respectively threadedly connected to both ends of the screw rod barrel, and a plug is fixedly arranged at the end of the screw rod for insertion into the base hole. By rotating the screw rod barrel, the screw rods can move relatively closer or farther away from each other, so as to adapt to the sizes of different foundation pits, with good adjustability and improved versatility.

[0008] Preferably, a dust-proof end sleeve is further fixedly arranged at the root of the plug for abutting against the outer end face of the base hole, preventing sand, gravel and cement from entering the base hole during construction and making it inconvenient to remove the adjusting support rod.

[0009] The advantages and positive effects of the utility model are:

[0010] Modular design, simple structure, convenient assembly, can be quickly installed, and can be stacked for installation.

[0011] And after forming the enclosure structure, it forms a good supporting force for the deep foundation pit caisson, avoiding its collapse, and after installation, the internal activity space is more spacious, facilitating the subsequent construction of workers.

[0012] After the casting is completed, it can be disassembled and reused. Brief Description of the Drawings

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 is a schematic structural view of the present utility model.

[0015] The reference numerals in the drawings are described separately as follows: 10, screw barrel; 11, screw; 12, plug; 13, dust-proof end sleeve; 14, enclosure support plate; 15, insertion piece; 16, rib support bar; 17, slot; 18, base hole; 19, adjusting support rod. Detailed Description of the Preferred Embodiments

[0016] Now the present utility model will be further described in detail in conjunction with the drawings. These drawings are all simplified schematic views, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model. The following is a further detailed description of the embodiments of the present utility model with reference to the drawings:

[0017] As Figure 1 shown, a kind of enclosure structure for deep foundation pit caisson of the present utility model includes four rib support bars 16 for standing at the corners of the caisson. A plurality of base holes 18 are fixedly welded on the inner side wall of the rib support bar 16. An adjusting support rod 19 is arranged between the base holes 18 to support and fix the position between the two rib support bars 16. A slot 17 is arranged on the rib support bar 16, and it also includes a plurality of enclosure support plates 14 inserted between the slots 17.

[0018] Preferably, insertion pieces 15 are fixedly welded at both ends of the enclosure support plate 14, and the insertion pieces 15 are inserted into the slots 17. In this way, when the enclosure support plates 14 are stacked and inserted in place, the outer side wall of the enclosure support plate 14 is flush with the outer side wall of the rib support bar 16, so that the enclosure support plate 14 can effectively fit on the inner wall of the foundation pit caisson to maintain a good supporting force.

[0019] Preferably, the adjusting support rod 19 includes two screw rods 11 and a screw rod barrel 10. The screw rods 11 are respectively threadedly connected to both ends of the screw rod barrel 10, and a plug 12 is fixedly provided at the end of the screw rod 11 for insertion into the base hole 18. By rotating the screw rod barrel 10, the screw rods 11 can be made to approach or move away from each other relatively, thereby adapting to the sizes of different foundation pits, having good adjustability and improving versatility.

[0020] Preferably, a dust-proof end sleeve 13 is also fixedly provided at the root of the plug 12 for abutting against the outer end face of the base hole 18 to prevent sand, gravel, cement, etc. from entering the base hole 18 during construction, which may cause inconvenience in removing the adjusting support rod 19.

[0021] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manners. Any other implementation manners obtained by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A deep foundation pit caisson enclosure structure, characterized in that: The invention comprises four edge support bars (16) for erecting at the corners of the caisson, a plurality of base holes (18) are welded and fixedly provided on the inner side walls of the edge support bars (16), an adjustment support rod (19) is provided between the base holes (18) for supporting and fixing the position between two edge support bars (16), a slot (17) is provided on the edge support bar (16), and a plurality of enclosure support plates (14) are inserted between the slots (17).

2. A deep foundation pit caisson enclosure structure according to claim 1, characterized in that: Inserts (15) are welded and fixed at both ends of the enclosure support plate (14), and the inserts (15) are inserted into the slots (17), so that when the enclosure support plates (14) are stacked and inserted into place, the outer side walls of the enclosure support plates (14) are flush with the outer side walls of the edge support strips (16).

3. The deep foundation pit caisson enclosure structure according to claim 2 is characterized in that: The adjusting support rod (19) comprises two screw rods (11) and a screw barrel (10), wherein the screw rods (11) are respectively threadedly connected to two ends of the screw barrel (10), and a plug (12) is fixedly provided at the end of the screw rod (11) for being inserted into the base hole (18). By rotating the screw barrel (10), the screw rods (11) can be relatively brought closer or relatively separated, thereby adapting to different foundation pit sizes.

4. The enclosure structure for deep foundation pit caisson according to claim 3 is characterized in that: A dustproof end sleeve (13) is also fixedly provided at the root of the plug (12) for abutting against the outer end surface of the base hole (18) to prevent sand, gravel and cement from entering the base hole (18) during construction, thereby making it difficult to remove the adjustment support rod (19).

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