Rainproof structure for foundation pit construction

Abstract

The utility model relates to the technical field of foundation pit construction, in particular to a rainproof structure for foundation pit construction, which comprises an embedded steel plate embedded at the top of a crown beam, a moving device is welded on the embedded steel plate, the moving device is connected with a telescopic rain shed, and the telescopic rain shed is connected with the top beam. The telescopic canopy can be driven by the moving device to slide and be unfolded or folded, drainage ditches are distributed on the outer side of the top beam, and the drainage ditches are arranged in the same direction as the erection direction of the top beam. The utility model has the advantages that the bad influence of rainwater on the foundation pit construction, especially the foundation pit construction risk, is reduced, and the foundation pit construction safety is ensured; on the premise that the construction progress is required, construction under the rainy day condition can be achieved to a certain extent, and the construction progress is not affected; the device is simple and reasonable in structure, very convenient to mount, dismount and use, low in manufacturing cost and suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit construction, in particular to a rainproof structure for foundation pit construction. Background Art

[0002] At present, the foundation pit construction is greatly affected by rain, because the foundation pit is an open excavation project, so rainwater will inevitably fall into the foundation pit. Therefore, rain will cause the construction site to stop working, the foundation pit to accumulate water, etc., causing progress to lag and safety to be uncontrollable. Summary of the invention

[0003] The purpose of the utility model is to provide a rainproof structure for foundation pit construction in accordance with the above-mentioned deficiencies of the prior art, by newly setting a retractable canopy that can be expanded or retracted on the crown beam, and further guiding rainwater to the drainage ditch for drainage, thereby reducing the adverse effects of rainwater on foundation pit construction and ensuring construction safety.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] A rainproof structure for foundation pit construction, including a retaining structure arranged around the foundation pit, the retaining structure including a crown beam, characterized in that: the rainproof structure includes an embedded steel plate embedded in the top of the crown beam, a moving device is welded on the embedded steel plate, the moving device is connected to a retractable canopy, the retractable canopy can slide and be unfolded or folded under the drive of the moving device, a drainage ditch is arranged on the outer side of the crown beam, and the drainage ditch is arranged in the same direction along the erection direction of the crown beam.

[0006] The top of the retractable canopy is arranged in an arc shape, and the diversion position of the arc corresponds to and matches the layout position of the drainage ditch.

[0007] The drainage ditches are respectively arranged on both sides of the arc-shaped top of the retractable canopy.

[0008] The moving device comprises an I-beam and a ball bearing. The I-beam is welded and fixed to the embedded steel plate. The ball bearing is arranged between the I-beams and forms a sliding fit with the I-beams.

[0009] The advantages of the utility model are: reducing the adverse effects of rainwater on foundation pit construction, especially the risks of foundation pit construction, and ensuring the safety of foundation pit construction; under the premise that there are requirements for the construction progress, construction under rainy conditions can be achieved to a certain extent without affecting the construction progress; the structure is simple and reasonable, installation and disassembly and use are very convenient, the cost is low, and it is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0011] The features of the present utility model and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments for the understanding of those skilled in the same industry:

[0012] As Figure 1 shown, the markings 1-7 in the figure respectively represent: the capping beam 1, the embedded steel plate 2, the I-beam 3, the ball 4, the retractable awning 5, the drainage ditch 6, and the foundation pit 7.

[0013] Embodiment: As Figure 1 shown, in this embodiment, the rain-proof structure for foundation pit construction is used to shield the foundation pit 7, thereby achieving a rain-proof effect, especially to prevent rainwater from falling into the foundation pit and causing waterlogging in the foundation pit.

[0014] Specifically, as Figure 1 shown, a retaining structure such as a diaphragm wall is provided around the foundation pit 7, and this retaining structure is used to retain the external soil mass of the foundation pit 7. A capping beam 1 is provided at the top of the retaining structure, an embedded steel plate 2 is provided at the top of the capping beam 1, and the embedded steel plate 2 extends along the erection direction of the capping beam 1. After the capping beam 1 is concreted, the I-beam 4 is welded and fixed to the embedded steel plate 2 as a track; through the embedded construction of the embedded steel plate 2, the connection performance between it and the capping beam 1 is ensured, and further the structural performance and stability of the I-beam 4 fixed on the embedded steel plate 2 are ensured. A ball 4 is provided at the bottom of the retractable awning 5, and the ball 4 is carried on the I-beam 3 to realize its longitudinal movement on the I-beam 3.

[0015] In this embodiment, the ball 4 is carried on the I-beam 3, and additional devices such as a limit collar can also be provided between the two to ensure that the ball 4 only contacts the I-beam 3 and can move longitudinally along it. For example, as Figure 1 shown, a downward-opening "["-shaped limit collar is provided on the periphery of the ball 4 to limit the ball 4. In actual use, in addition to the ball 4, various movable structures that can realize sliding and rolling can also be provided at the bottom of the retractable awning 5 to be adapted to the I-beam 3 and move longitudinally along it, such as rollers.

[0016] In rainy days, the staff on the ground can pull the retractable awning 5 to unfold it. At this time, the ball 4 slides longitudinally along the I-beam 3, and the unfolded retractable awning 5 shields the foundation pit 7, thereby achieving rain-proof; after the rain stops, the staff can pull the retractable awning 5 to fold it up and continue the construction of the foundation pit 7.

[0017] As Figure 1As shown in the figure, in this embodiment, drainage ditches 6 are constructed around the foundation pit 7 and arranged in the same direction as the erection direction of the capping beam 1. At the same time, the top of the retractable awning 5 is set to be arc-shaped, which means that the central position of the retractable awning 5 is relatively high and the outer position is relatively low, thus forming an arc. At this time, since the top of the retractable awning 5 is arc-shaped, rainwater will not accumulate above the retractable awning 5 to increase unnecessary loads. Instead, under the guidance of the top arc, the rainwater can flow from the retractable awning 5 into the surrounding drainage ditches 6, and then be discharged quickly in a centralized manner, avoiding rainwater accumulation at the perimeter of the foundation pit.

[0018] Although the above embodiments have described in detail the concept and embodiments of the object of the present invention with reference to the accompanying drawings, those of ordinary skill in the art can recognize that various improvements and transformations can still be made to the present invention without departing from the scope defined by the claims. Therefore, they will not be elaborated here one by one.

Claims

1. A rainproof structure for foundation pit construction, comprising a protective structure arranged around the foundation pit, the protective structure comprising a crown beam, characterized in that: The rainproof structure includes an embedded steel plate embedded in the top of the crown beam, a moving device is welded on the embedded steel plate, the moving device is connected to a retractable canopy, and the retractable canopy can slide and unfold or fold under the drive of the moving device. A drainage ditch is arranged on the outer side of the crown beam, and the drainage ditch is arranged in the same direction along the erection direction of the crown beam.

2. A rainproof structure for foundation pit construction according to claim 1, characterized in that: The top of the retractable canopy is arranged in an arc shape, and the diversion position of the arc corresponds to and matches the layout position of the drainage ditch.

3. A rainproof structure for foundation pit construction according to claim 2, characterized in that: The drainage ditches are respectively arranged on both sides of the arc-shaped top of the retractable canopy.

4. A rainproof structure for foundation pit construction according to claim 1, characterized in that: The moving device comprises an I-beam and a ball bearing. The I-beam is welded and fixed to the embedded steel plate. The ball bearing is arranged between the I-beams and forms a sliding fit with the I-beams.

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