Foundation pit steel sheet pile supporting device

Abstract

The utility model discloses a foundation pit steel sheet pile supporting device which comprises a foundation pit and a plurality of steel sheet piles tightly arranged on the inner edge of the foundation pit, H-shaped supporting frames are arranged on the outer sides of the upper portions of the steel sheet piles in a supporting mode, the ends of the adjacent H-shaped supporting frames are combined and fixed through connecting bolts, and adjustable inclined supporting frames are arranged on the outer sides of the adjacent H-shaped supporting frames in a supporting mode. The H-shaped supporting frames convenient to assemble and disassemble are installed on the outer sides of the upper portions of the steel sheet piles of the foundation pit, and the adjustable inclined supporting frames are arranged on the adjacent H-shaped supporting frames, so that people only need to operate outside the foundation pit in the follow-up disassembling process and do not need to enter the foundation pit, the operation safety is greatly improved, meanwhile, follow-up disassembling is simple and convenient, and the working efficiency is improved. And the construction efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit steel sheet piles, and particularly relates to a support device for foundation pit steel sheet piles. Background Art

[0002] In the construction of deep foundation pits in municipal engineering, it is crucial to strengthen the support to ensure the stability of the foundation pit. The steel sheet pile support plays an important role in the engineering construction due to its strong technical effect. It can improve the soft property of the soil layer in the foundation, increase the stability coefficient of the soil wall around the foundation pit, and highlight the energy efficiency of reinforcement.

[0003] After the steel sheet piles are inserted into the edge of the foundation pit, in order to prevent the steel sheet piles from deforming under the pressure of the outer soil, currently, a frame-shaped internal support needs to be placed inside the steel sheet piles. The frame-shaped internal support uses a square steel frame and is hoisted by a crane inside the foundation pit steel sheet piles (as Figure 5 shown). When lowering, it needs to be directly opposite the inside of the steel sheet piles and its position needs to be adjusted to be put in, which is rather troublesome. After reaching a certain position, it is welded to the inner wall of the steel sheet piles. However, the subsequent disassembly is very troublesome, affecting the construction efficiency. Content of the Utility Model

[0004] In order to solve the above existing problems, the utility model provides a support device for foundation pit steel sheet piles.

[0005] The utility model is realized through the following technical solutions:

[0006] A support device for foundation pit steel sheet piles includes a foundation pit and a plurality of steel sheet piles closely arranged on the inner edge thereof. An H-shaped support frame is supported on the outer side of the upper part of the plurality of steel sheet piles. The ends of adjacent H-shaped support frames are fixedly combined by connecting bolts. An adjustable inclined support frame is supported on the outer side of adjacent H-shaped support frames.

[0007] Further optionally, the H-shaped support frame is clamped and fixed in the card slot of the L-shaped clamping plate fixedly arranged on the outer side of the upper part of the steel sheet pile.

[0008] Further optionally, vertical insertion rods are fixedly arranged at the lower parts of both ends of the inclined support frame. The insertion rods are correspondingly inserted into the adjustable sliding components on the H-shaped support frame.

[0009] Further optionally, the sliding component includes a connecting block. Clamping blocks capable of being clamped on the H-shaped support frame are fixedly arranged up and down on the side part of the connecting block. A plurality of locking screws are arranged on the outer side of the clamping blocks.

[0010] Further optionally, a jack socket matched with the insertion rod for insertion is formed on the connecting block.

[0011] Compared with the existing technology, the beneficial effects of the utility model are as follows: by installing an H-shaped support frame that is convenient for assembly and disassembly on the outer side of the upper part of the steel sheet pile in the foundation pit, and arranging an adjustable inclined support frame between adjacent H-shaped support frames, during subsequent disassembly, only personnel need to operate outside the foundation pit, without entering the foundation pit, thus greatly improving safety. At the same time, subsequent disassembly is also relatively simple and convenient, greatly improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 is Figure 1 a schematic enlarged view of the partial structure marked as A in

[0014] Figure 3 is Figure 1 a schematic enlarged view of the partial structure marked as B in

[0015] Figure 4 is a schematic diagram of the upper structure of the steel sheet pile;

[0016] Figure 5 is a schematic diagram of the prior art of the present utility model;

[0017] In the figure: foundation pit 1, steel sheet pile 2, L-shaped clamping plate 21, frame-shaped internal support 3, installation groove 4, H-shaped support frame 5, connecting bolt 6, inclined support frame 7, insertion rod 8, connecting block 9, insertion hole 10, clamping block 11, locking screw 12. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments:

[0019] As Figure 1 and 3 shown, a support device for a foundation pit steel sheet pile includes a foundation pit 1 and a plurality of steel sheet piles 2 tightly arranged on the inner edge thereof. An H-shaped support frame 5 is supported on the outer side of the upper part of the plurality of steel sheet piles 2. The ends of adjacent H-shaped support frames 5 are fixedly combined through connecting bolts 6, and an adjustable inclined support frame 7 is supported outside the adjacent H-shaped support frames 5.

[0020] As Figure 1 and 4 shown, the H-shaped support frame 5 is clamped in the card slot of the L-shaped clamping plate 21 fixed on the outer side of the upper part of the steel sheet pile 2 for fixation. The fixation and disassembly of the H-shaped support frame 5 and the steel sheet pile 2 are more convenient and efficient, and welding is not required.

[0021] As Figure 2As shown, vertical insertion rods 8 are fixed to the lower parts of both ends of the inclined support frame 7. The insertion rods 8 are correspondingly inserted into the slidable components on the H-shaped support frame 5 that can be adjusted, and the inclined support frame 7 can be easily adjusted and installed through the slidable components.

[0022] As Figure 2 shown, the slidable component includes a connection block 9. On the upper and lower sides of the side part of the connection block 9, there are clamping blocks 11 that can be clamped on the H-shaped support frame 5. A plurality of locking screws 12 are arranged on the outer side of the clamping blocks 11.

[0023] As Figure 2 shown, a jack 10 that is inserted and matched with the insertion rod 8 is opened on the connection block 9.

[0024] The implementation principle of an excavation steel sheet pile support device in an embodiment of this application is as follows:

[0025] After the steel sheet piles 2 are inserted and fixed around the excavation 1, installation grooves 4 are excavated on the outer sides of the upper parts of the steel sheet piles 2. Then, four H-shaped support frames 5 are lifted by a crane and placed once in the installation grooves 4 on the outer sides of the upper parts of the steel sheet piles 2, and the H-shaped support frames 5 are clamped in the card slots of the L-shaped clamping plates 21 on the outer sides of the corresponding several adjacent steel sheet piles 2, and connection bolts 6 are used to connect and fix the head and tail ends of the adjacent H-shaped support frames 5;

[0026] In this way, the four H-shaped support frames 5 form a frame-shaped support and are clamped and fixed to the outer sides of the upper parts of the steel sheet piles 2, realizing the strengthening and fixing of the steel sheet piles 2 to prevent them from deforming. At the same time, the connection blocks 9 that slide on the H-shaped support frames 5 are adjusted, and the insertion rods 8 at the lower part of the inclined support frame 7 can be inserted into the jacks 10 of the corresponding two connection blocks 9. After insertion, the locking screws 12 are tightened to firmly fix the connection blocks 9 to the H-shaped support frames 5. In this way, the inclined support frame 7 can make the force on the H-shaped support frame 5 more uniform. Subsequently, during disassembly, only personnel need to operate outside the excavation 1, without the need to enter the excavation 1 for operation, and the safety is greatly improved. At the same time, the subsequent disassembly is also relatively simple and convenient, and the construction efficiency is greatly improved.

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit steel sheet pile support device, comprising a foundation pit (1) and a plurality of steel sheet piles (2) closely arranged at its inner edge, characterized in that: An H-shaped support frame (5) is provided on the upper outer side of a plurality of steel sheet piles (2), the ends of adjacent H-shaped support frames (5) are combined and fixed by connecting bolts (6), and an adjustable inclined support frame (7) is provided on the outer side of adjacent H-shaped support frames (5).

2. A foundation pit steel sheet pile supporting device according to claim 1, characterized in that: The H-shaped support frame (5) is clamped in a clamping groove of an L-shaped clamping plate (21) fixed on the upper outer part of the steel sheet pile (2) to be fixed thereto.

3. A foundation pit steel sheet pile supporting device according to claim 1, characterized in that: Vertical insertion rods (8) are fixed at the lower parts of both ends of the inclined support frame (7), and the insertion rods (8) are correspondingly inserted into the adjustable sliding components on the H-shaped support frame (5).

4. A foundation pit steel sheet pile supporting device according to claim 3, characterized in that: The sliding assembly comprises a connecting block (9), and a clamping block (11) capable of being clamped on the H-shaped support frame (5) is fixed on the upper and lower sides of the connecting block (9), and a plurality of locking screws (12) are arranged on the outer side of the clamping block (11).

5. A foundation pit steel sheet pile supporting device according to claim 4, characterized in that: The connection block (9) is provided with a plug hole (10) which is plugged and matched with the plug rod (8).

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