Foundation pit supporting device and method of using the same

Abstract

A kind of foundation pit supporting device for the temporary support of foundation pit, reinforcement pedestal;Symmetrically arranged vertical protection mechanism on the two sides of the reinforcement pedestal, the reinforcement pedestal and the vertical protection mechanism are connected by hydraulic telescopic rod, the hydraulic telescopic rod can adjust the spacing of the reinforcement pedestal and the vertical protection mechanism;And the two-way hydraulic telescopic rod supported between the top of the two symmetrically arranged vertical protection mechanisms, the two-way hydraulic telescopic rod can be telescopic adjusted to adjust the spacing between the two vertical protection mechanisms, the device can be quickly installed in foundation pit, play the role of emergency support, anti-collapse support in a short time, gain time for identifying the cause of sudden abnormality, eliminate safety risk, carry out foundation pit reinforcement construction, and can be recycled, the cost is lower.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of foundation pit support, in particular to a foundation pit support device and a using method thereof. BACKGROUND

[0002] In the process of foundation pit construction, earthwork excavation is a necessary process, in order to ensure the safety of underground structure construction and the surrounding environment of the foundation pit, the foundation pit needs to be supported before and after excavation, when unexpected abnormal conditions caused by over-excavation or other construction operations occur, cracks may appear around the ground of the support structure in the foundation pit, the foundation pit wall may leak, and soil may flow, which may cause the ground or road outside the pit to sink, buildings to tilt, or pipes around the pit to break, etc. Adding internal support (horizontal steel support or inclined support) in the foundation pit is a common reinforcement measure, which requires fixing with the waist beam of the pit wall, steel surrounding purlin or concrete stress support at the edge of the pit, has high requirements for construction technology, needs to properly handle the node structure, and requires certain previous construction conditions, otherwise the support capacity will be greatly reduced. SUMMARY

[0003] The present application aims to overcome the defects of the prior art, and provides a foundation pit support device, which solves the problem that the existing reinforcement structure needs to be fixed with the waist beam of the pit wall, steel surrounding purlin or concrete stress support at the edge of the pit, has high requirements for construction technology, needs to properly handle the node structure, and requires certain previous construction conditions, and cannot cope with sudden safety risks of the foundation pit.

[0004] The technical solution to achieve the above-mentioned purpose is:

[0005] The present application provides a foundation pit support device for temporary support of a foundation pit, characterized in that the support device comprises:

[0006] a reinforcing base;

[0007] vertical protection mechanisms symmetrically arranged on both sides of the reinforcing base, the reinforcing base and the vertical protection mechanisms being connected by a hydraulic telescopic rod, the hydraulic telescopic rod being capable of adjusting the distance between the reinforcing base and the vertical protection mechanisms; and

[0008] a bidirectional hydraulic telescopic rod supported between the top portions of the two symmetrically arranged vertical protection mechanisms, the bidirectional hydraulic telescopic rod being capable of telescopic adjustment to adjust the distance between the two vertical protection mechanisms.

[0009] The foundation pit support device of the present application is further improved in that the vertical protection mechanism comprises:

[0010] a fixed support plate erected on the outer side of the reinforcing base, the bottom portion of the fixed support plate being connected with the hydraulic telescopic rod, and the top portion of the fixed support plate being connected with the bidirectional hydraulic telescopic rod;

[0011] A rotatable supporting plate is installed on the top of the fixed supporting plate, and the rotatable supporting plate is erected on the top of the fixed supporting plate by rotating the rotatable supporting plate.

[0012] The top of the fixed supporting plate is connected with a blocking plate on the side away from the rotatable supporting plate, and the rotatable supporting plate is attached to the blocking plate when the rotatable supporting plate is rotated to be erected on the top of the fixed supporting plate.

[0013] The rotatable supporting plate is hollow inside and forms a movable groove.

[0014] The base pit supporting device further comprises a movable supporting plate slidingly arranged in the movable groove, and the movable supporting plate can be adjusted to slide along the movable groove to extend to the outside of the rotatable supporting plate.

[0015] The side of the fixed supporting plate close to the reinforcing base is provided with a vertically arranged connecting rod.

[0016] The end of the bidirectional hydraulic telescopic rod is provided with a movable ring, which is sleeved on the connecting rod and can be adjusted to move along the connecting rod.

[0017] The rotatable supporting plate is connected with the fixed supporting plate through a rotating connecting frame.

[0018] The reinforcing base is provided with a rotatable electric telescopic rod, which is arranged in an inclined manner and is movably connected with the bidirectional hydraulic telescopic rod.

[0019] The electric telescopic rod is connected with the reinforcing base through a rotating support, and is connected with the bidirectional hydraulic telescopic rod through a hinged piece.

[0020] The bottom of the reinforcing base is provided with a plurality of fixed pieces, which are hollow inside, and the reinforcing base is provided with through holes communicating with the interiors of the fixed pieces.

[0021] The top of the reinforcing base is provided with a groove corresponding to the position of the through hole, and the groove communicates with the through hole.

[0022] The application provides a use method of the base pit supporting device, which comprises the following steps:

[0023] Lifting the foundation pit supporting device into the foundation pit and placing the reinforcing base in the supporting position;

[0024] Controlling the hydraulic telescopic rod and the length of the bidirectional hydraulic telescopic rod to adjust the distance of the support to match the foundation pit;

[0025] After the emergency reinforcement of the foundation pit supporting device is completed, the sudden abnormalities of the foundation pit are checked and reinforced;

[0026] After the reinforcement of the foundation pit is completed, the foundation pit supporting device is restored and recycled.

[0027] The beneficial effects of the present application are: the foundation pit supporting device is quickly installed in the foundation pit, which plays a role in preventing collapse and supporting the foundation pit, provides enough time for identifying the cause of sudden abnormalities, reinforcing the foundation pit, and eliminating safety risks, solves the safety hidden danger of the foundation pit, and the device can be recycled, which is more cost-effective. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The overall structure of the foundation pit supporting device of the present application is shown in the figure Figure 1 .

[0029] Figure 2 The overall structure of the foundation pit supporting device of the present application is shown in the figure Figure 2 .

[0030] Figure 3 The use method of the foundation pit supporting device of the present application is shown in the figure.

[0031] Figure 4 The local perspective view of the foundation pit supporting device of the present application is shown in the figure.

[0032] Figure 5 The connection relationship of the fixing member of the foundation pit supporting device of the present application is shown in the figure.

[0033] Figure 6 The local perspective view of the vertical protection assembly of the foundation pit supporting device of the present application is shown in the figure.

[0034] Figure 7 The perspective view of the bidirectional hydraulic telescopic rod of the foundation pit supporting device of the present application is shown in the figure.

[0035] Figure 8 The flow chart of the use method of the foundation pit supporting device of the present application is shown in the figure.

[0036] 1 - reinforcing base, 101 - groove, 103 - fixing part, 2 - hydraulic telescopic rod, 3 - vertical protection mechanism, 301 - fixed support plate, 302 - blocking plate, 303 - rotating connecting frame, 304 - rotating support plate, 305 - movable support plate, 307 - connecting rod, 401 - bidirectional hydraulic telescopic rod, 402 - movable ring, 403 - rotating support, 404 - electric telescopic rod, 405 - hinged part DETAILED DESCRIPTION

[0037] The application will be further described below in conjunction with the drawings and specific embodiments.

[0038] Referring to Figure 1 and Figure 2 , the application provides a foundation pit support device, comprising: a reinforcing base 1, a vertical protection mechanism 3, a bidirectional hydraulic telescopic rod 401,

[0039] The vertical protection mechanism 3 is symmetrically arranged on both sides of the reinforcing base 1, and the reinforcing base 1 and the vertical protection mechanism 3 are connected through a hydraulic telescopic rod 2. The hydraulic telescopic rod 2 can adjust the distance between the reinforcing base 1 and the vertical protection mechanism 3 to support foundation pits of different sizes.

[0040] The bidirectional hydraulic telescopic rod 401 is supported between the top portions of the two symmetrically arranged vertical protection mechanisms 3. The bidirectional hydraulic telescopic rod 401 can be adjusted in extension and retraction to adjust the distance between the two vertical protection mechanisms 3 and to firmly support the top and bottom portions of the vertical protection mechanism 3.

[0041] Further, in combination with Figure 3 and Figure 6 , the vertical protection mechanism 3 of the application comprises a fixed support plate 301, a blocking plate 302, a rotating connecting frame 303, and a rotating support plate 304.

[0042] The fixed support plate 301 is vertically arranged on the outer side of the reinforcing base 1. The bottom portion of the fixed support plate 301 is connected with the hydraulic telescopic rod 2, and the top portion of the fixed support plate 301 is connected with the bidirectional hydraulic telescopic rod 401.

[0043] The rotating support plate 304 is rotatably installed on the top portion of the fixed support plate 301. The rotating support plate 304 is rotatably connected with the fixed support plate 301 through a rotating connecting frame 303. By rotating the rotating support plate 304, the rotating support plate 304 can be vertically arranged on the top portion of the fixed support plate 301 to increase the support height and realize adaptation to foundation pits of different sizes.

[0044] The blocking plate 302 is connected to the top of the fixed support plate 301 away from one side of the rotating support plate 304, when the rotating support plate 304 is rotated to stand at the top of the fixed support plate 301, the rotating support plate 304 is attached to the blocking plate 302, and the rotating support plate 304 is kept vertical by abutting against the blocking plate 302.

[0045] Further, the rotating support plate 304 is internally hollow to form a movable slot, and the foundation pit support device further comprises a movable support plate 305 slidingly arranged in the movable slot, the movable support plate 305 can be adjusted to slide along the movable slot to extend to the outside of the rotating support plate 304, thereby improving the support height to adapt to different sizes of foundation pits. In use, the rotating support plate 304 is first rotated around the rotating connecting frame 303 to be vertical, the support height is increased, if necessary, the movable support plate 305 is extended again to increase the support height again to meet the needs of different working conditions.

[0046] In combination with Figure 4 and Figure 7 , preferably, the fixed support plate is provided with a connecting rod 307 arranged vertically near the side of the reinforcing base, the end of the bidirectional hydraulic telescopic rod 401 is provided with a movable ring 402, the movable ring 402 is sleeved on the connecting rod 307 and can be adjusted to move along the connecting rod 307, thereby realizing the support of the bidirectional hydraulic telescopic rod 401 at different heights for the vertical protection mechanism 3.

[0047] Further, the reinforcing base 1 is provided with a rotatable electric telescopic rod 404, the electric telescopic rod 404 is arranged in an inclined manner, and the electric telescopic rod 404 is movably connected with the bidirectional hydraulic telescopic rod 401, the bottom of the electric telescopic rod 404 is rotatably connected with the reinforcing base 1 through a rotating support 403, and the top of the electric telescopic rod 404 is hingedly connected with the bidirectional hydraulic telescopic rod 401 through a hinge 405, so that the horizontal reinforcing mechanism 4 can be retracted to the top surface of the reinforcing base 1 after the support is completed, thereby reducing the storage space.

[0048] Preferably, the electric telescopic rod 404 is arranged symmetrically, and two electric telescopic rods 404 are respectively connected to the two ends of the fixed part of the bidirectional hydraulic telescopic rod 401, and the hydraulic telescopic rod 2 is provided with two on one side of the reinforcing base 1, thereby improving the reinforcing stability.

[0049] In combination with Figure 4 and Figure 5The bottom of the reinforcing base 1 is provided with a plurality of fixing members 103, the fixing member 103 is hollow inside, the reinforcing base 1 is provided with a through hole in communication with the inside of the fixing member 103, the top of the reinforcing base 1 is provided with a groove corresponding to the position of the through hole, the groove is in communication with the through hole, the bottom of the fixing member 103 is open, forming a through pouring space, and the reinforcing base is fixed by pouring concrete into the groove through the pouring space.

[0050] Further, the inner wall of the fixing member 103 is coated with an anti-adhesion coating, which helps to pour concrete more tightly and avoid uneven distribution of concrete in the hollow part, causing unstable fixation of the reinforcing base 1.

[0051] In combination Figure 8 The use method of the foundation pit supporting device will be introduced below, including the following steps:

[0052] The reinforcing base 1 is placed in the supporting position by hoisting the foundation pit supporting device into the foundation pit;

[0053] The length of the hydraulic telescopic rod 2 and the bidirectional hydraulic telescopic rod 401 is controlled to adjust the supporting distance to match the foundation pit;

[0054] After the emergency reinforcement of the foundation pit supporting device is completed, the sudden abnormalities of the foundation pit are checked and reinforced;

[0055] After the reinforcement of the foundation pit is completed, the foundation pit supporting device is restored and recycled.

[0056] The method can quickly set the foundation pit supporting device at the sudden abnormal position in the foundation pit, reinforce the dangerous area of the foundation pit, and recycle the device after the reinforcement construction is completed, which can be used again and save cost.

[0057] The above embodiments of the application are described in detail in combination with the drawings, and those skilled in the art can make various changes to the application according to the above description. Therefore, some details in the embodiments should not constitute a limitation on the application, and the scope of protection of the application will be defined by the appended claims.

Claims

1. A foundation pit support device for temporary support of foundation pits, characterized in that, The support device includes: Reinforce the base; A vertical protective mechanism symmetrically arranged on both sides of the reinforcing base; the reinforcing base and the vertical protective mechanism are connected by a hydraulic telescopic rod, which can adjust the distance between the reinforcing base and the vertical protective mechanism; and A bidirectional hydraulic telescopic rod is supported between the tops of two symmetrically arranged vertical protective mechanisms. The bidirectional hydraulic telescopic rod can be extended and retracted to adjust the distance between the two vertical protective mechanisms. The vertical protection mechanism includes: A fixed support plate is erected on the outside of the reinforced base. The bottom of the fixed support plate is connected to the hydraulic telescopic rod, and the top of the fixed support plate is connected to the bidirectional hydraulic telescopic rod. A rotatable rotating support plate is mounted on top of the fixed support plate. By rotating the rotating support plate, the rotating support plate can be erected on top of the fixed support plate. A blocking plate is connected to the top of the fixed support plate on the side away from the rotating support plate. When the rotating support plate rotates to the top of the fixed support plate, the rotating support plate is in contact with the blocking plate. The fixed support plate is provided with a vertically arranged connecting rod on the side near the reinforced base; The end of the bidirectional hydraulic telescopic rod is provided with a movable ring, which is sleeved on the connecting rod and can be moved and adjusted along the connecting rod.

2. The foundation pit support device as described in claim 1, characterized in that, The rotating support plate has a hollow interior forming a movable groove; The foundation pit support device also includes a movable support plate that slides within the movable groove. The movable support plate can be slidably adjusted along the movable groove to extend to the outside of the rotating support plate.

3. The foundation pit support device as described in claim 1, characterized in that, The rotating support plate is connected to the fixed support plate via a rotating connecting frame.

4. The foundation pit support device as described in claim 1, characterized in that, The reinforced base is equipped with a rotatable and adjustable electric telescopic rod, which is inclined and is movably connected to the bidirectional hydraulic telescopic rod.

5. The foundation pit support device as described in claim 4, characterized in that, The electric telescopic rod is connected to the reinforced base via a rotating bracket, and the electric telescopic rod is connected to the bidirectional hydraulic telescopic rod via a hinge.

6. The foundation pit support device as described in claim 1, characterized in that, The bottom of the reinforcing base is provided with multiple fasteners, the fasteners are hollow inside, and the reinforcing base is provided with through holes that communicate with the interior of the fasteners.

7. The foundation pit support device as described in claim 6, characterized in that, The top of the reinforcing base is provided with a groove corresponding to the position of the through hole, and the groove communicates with the through hole.

8. A method of using the foundation pit support device as described in claim 1, characterized in that, Includes the following steps: The foundation pit support device is hoisted into the foundation pit, and the reinforced base is placed in the support position; The extension and retraction of the hydraulic telescopic rod and the length of the bidirectional hydraulic telescopic rod are controlled to adjust the support distance to match the foundation pit; After the emergency reinforcement of the foundation pit support device is completed, investigate any sudden abnormalities in the foundation pit and carry out reinforcement treatment. After the foundation pit reinforcement is completed, the foundation pit support device will be restored and recycled.

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