Press-in caisson pressurized construction device

Abstract

The utility model relates to a kind of pressed into well sinking pressurized construction devices, comprising: pressurized frame, pressurized bracket, pressurized component block, hydraulic jack, jack holder and pressurized cushion block;Pressurized bracket is fixed in pressurized frame side wall;Pressurized component block is fixed in pressurized bracket bottom;Jack holder is fixed in pressurized frame side wall, and jack holder is fixed with hydraulic jack;Hydraulic jack fixed end is pasted pressurized component block bottom, and hydraulic jack telescopic end is pasted with pressurized cushion block.The utility model has the beneficial effect that: by hydraulic jack top in well sinking top, device is applicable to different plane shape well sinking;By setting sliding slot on stand, the position of bolt connected in sliding slot is adjusted, the position of jack holder is adjusted, by increasing pressurized component block, hydraulic jack is provided with counterforce support point, by adjusting holder position and increasing the number of pressurized component block, hydraulic jack continuous depression is realized.

Description

Technical Field

[0001] This utility model relates to the field of caisson construction, and in particular includes a pressurized caisson construction device. Background Technology

[0002] Caissons are constructed either as a whole or in sections on the ground and sink gradually by their own weight or external forces. Due to their simple structure and faster construction speed compared to general retaining structures, this technology has been widely used in the construction of stormwater and sewage pumping stations, bridge pier foundations, and shield tunneling launching and receiving shafts.

[0003] During the sinking process, the well body needs to overcome the side friction resistance of the well wall and the resistance at the cutting edge to sink. In the middle and late stages of sinking, as the contact area between the well wall and the soil increases and the bearing capacity of the deep soil increases, the sinking resistance gradually increases and stagnation is likely to occur.

[0004] The general method for applying reaction force is as follows: steel plates are pre-embedded during the well wall pouring, steel brackets are welded, and through-hole jacks are installed on the brackets to pull the anchor rods to provide reaction force. The brackets are cantilever structures, generally 2 meters high. To prevent the well wall from cracking, they need to be 0.3 meters away from the end of the well wall. Therefore, during sinking, it can only sink to the bottom of the bracket, which means that the 2.3-meter well wall cannot sink through reaction force. It is necessary to use a slope to reserve the height of the bracket or to remove the part above the ground after sinking. In addition, the steel brackets need to be welded and cut to disassemble and install. On average, only 2-3 sets can be installed per day. For large caissons, a large number of brackets need to be added to provide sufficient reaction force, which has a great impact on the construction period and labor costs.

[0005] Therefore, there is an urgent need for a pressurized caisson construction device with a short construction period and low cost. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a pressurized caisson construction device.

[0007] This pressurized caisson construction device includes: a pressurizing frame, a pressurizing bracket, a pressurizing component block, a hydraulic jack, a jack retainer, and a pressurizing pad. The bottom of the pressurizing frame is fixed to the ground around the caisson. The pressurizing bracket is fixed to the side wall of the pressurizing frame with bolts. The pressurizing component block is fixed to the bottom of the pressurizing bracket. The jack retainer is fixed to the side wall of the pressurizing frame, and a hydraulic jack is fixed through the jack retainer. The fixed end of the hydraulic jack is attached to the bottom of the pressurizing component block, and the telescopic end of the hydraulic jack is attached to the pressurizing pad. The pressurizing pad is attached to the top of the caisson wall.

[0008] Preferably, the pressure frame consists of a bottom beam, diagonal supports, and columns; the bottom beam is fixed to the ground around the caisson by fastening bolts laid around the caisson; the columns are fixed to the top of the bottom beam by bolts; and the diagonal supports are fixed between the bottom beam and the columns by bolts.

[0009] Preferably, a reinforcing plate is fixed to the side wall of the column by bolts, and both the reinforcing plate and the column are provided with elongated sliding grooves; the side wall of the jack retainer is connected with bolts, which extend into the sliding grooves and are used to adjust the height of the jack retainer on the side wall of the column.

[0010] Preferably, several pressure-pressurizing components are provided between the pressure-pressurizing bracket and the hydraulic jack, and the pressure-pressurizing components are fixed together by bolts.

[0011] The beneficial effects of this utility model are:

[0012] 1) This utility model uses a hydraulic jack to push the top of the caisson, causing the caisson to sink. This connection method makes the device suitable for caissons with different planar shapes, and has high applicability.

[0013] 2) This utility model achieves continuous downward pressure of the hydraulic jack by setting a sliding groove on the column, adjusting the position of the bolt connected to the sliding groove, adjusting the position of the jack retainer, and adding a pressure component block to provide a reaction support point for the hydraulic jack. By adjusting the position of the retainer and increasing the number of pressure component blocks, the hydraulic jack can be continuously pressed down.

[0014] 3) This utility model is simple to manufacture, and the required raw materials are structural steel and steel plates, which are easy to manufacture;

[0015] 4) The pressure frame of this utility model adopts a modular design, which facilitates transportation and allows for quick installation and disassembly.

[0016] 5) The pressure frame of this utility model is fixed to the ground around the caisson, and the hydraulic jack is pressed against the top of the caisson wall, which can completely press the caisson into the ground without modifying the caisson structure, thus reducing the overall construction difficulty. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram;

[0018] Figure 2 This is an exploded view of the overall structure;

[0019] Figure 3 This is a structural diagram of the pressure frame;

[0020] Figure 4 This is a construction diagram of a pressurized caisson construction device;

[0021] Figure 5 This is a schematic diagram of the hoisting construction of the first section of the caisson wall;

[0022] Figure 6 This is a schematic diagram of the second section of the caisson wall hoisting construction;

[0023] Figure 7 This is a schematic diagram of the overall construction of the caisson wall hoisting.

[0024] Explanation of reference numerals in the attached drawings: 1. Pressure frame 1. Bottom beam 1-1. Diagonal support 1-2. Column 1-3. Pressure bracket 2. Pressure frame 3. Hydraulic jack 4. Jack retainer 5. Reinforcing plate 6. Sliding groove 7. Fastening bolt 8. Pressure pad 9. Caisson wall 10. Detailed Implementation

[0025] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0026] As one embodiment, a pressurized caisson construction device is proposed, such as... Figures 1-7 As shown, it includes: pressure frame 1, bottom beam 1-1, diagonal support 1-2, column 1-3, pressure bracket 2, pressure frame 3, hydraulic jack 4, jack retainer 5, reinforcing plate 6, sliding groove 7, fastening bolt 8, pressure pad 9, caisson wall 10.

[0027] The bottom of the pressure frame 1 is fixed to the ground around the caisson; specifically, as shown in the figure... Figure 3 As shown, the pressure frame 1 consists of a bottom beam 1-1, diagonal supports 1-2, and columns 1-3. The bottom beam 1-1 is fixed to the ground around the caisson by fastening bolts laid around the caisson. The columns 1-3 are fixed to the top of the bottom beam 1-1 by bolts. The diagonal supports 1-2 are fixed between the bottom beam 1-1 and the columns 1-3 by bolts to strengthen the support. The side walls of the columns 1-3 are fixed with reinforcing plates 6 by bolts to increase the strength of the columns 1-3 and ensure the stability of the overall structure during the pressurization process.

[0028] like Figure 1 As shown, the pressure bracket 2 is fixed to the side wall of the pressure frame 1 by bolts, and is used to bear the reaction force when the hydraulic jack 4 is lifted during the pressing process, and to transmit the reaction force to the pressure frame 1.

[0029] like Figure 1 and Figure 2As shown, the pressure component block 3 is fixed to the bottom of the pressure bracket 2; the jack retainer 5 is fixed to the side wall of the pressure frame 1, and the hydraulic jack 4 is fixed through the jack retainer 5; the fixed end of the hydraulic jack 4 is attached to the bottom of the pressure component block 3, and the telescopic end of the hydraulic jack 4 is attached to the pressure pad 9, which is attached to the top of the caisson wall 10. The pressure pad 9 can ensure that the pressure of the jack 4 is evenly distributed on the caisson wall 10, avoiding damage to the wall structure due to stress concentration; specifically, the reinforcing plate 6 and the column 1-3 are both provided with long strip sliding grooves 7; the side wall of the jack retainer 5 is connected with bolts 8, which extend into the sliding grooves 7. The bolts 8 are used to adjust the height of the jack retainer 5 on the side wall of the column 1-3;

[0030] This connection method between the hydraulic jack 4 and the caisson wall 10 is suitable for caissons with different planar shapes and has high applicability.

[0031] like Figure 3 and Figure 4 As shown, several pressure component blocks 3 are provided between the pressure bracket 2 and the hydraulic jack 4, and the pressure component blocks 3 are fixed together by bolts. Specifically, as the caisson is pressed in, the height of the top of the caisson wall 10 decreases, and the stroke of the hydraulic jack 4 reaches its limit. At this time, the fastening bolts 8 are loosened, the jack retainer 5 is slid downward, and at the same time, a pressure pad 3 is added and connected and fixed to the previous pressure pad 3 with bolts. The height of the jack retainer 5 is adjusted so that the bottom of the hydraulic jack 4 contacts the pressure pad 9. The fastening bolts 8 are tightened to fix the retainer 5. During the sinking process, the pressure component blocks 3 are added in sequence and the jack retainer 5 is moved downward to achieve continuous pressing.

Claims

1. A pressurized caisson construction device, characterized in that, include: The system comprises a pressure frame, a pressure bracket, a pressure component block, a hydraulic jack, a jack retainer, and a pressure pad. The bottom of the pressure frame is fixed to the ground around the caisson. The pressure bracket is fixed to the side wall of the pressure frame with bolts. The pressure component block is fixed to the bottom of the pressure bracket. The jack retainer is fixed to the side wall of the pressure frame, and a hydraulic jack is fixed through the jack retainer. The fixed end of the hydraulic jack is attached to the bottom of the pressure component block, and the telescopic end of the hydraulic jack is attached to the pressure pad. The pressure pad is attached to the top of the caisson wall.

2. The pressurized caisson construction device according to claim 1, characterized in that, The pressure frame consists of a bottom beam, diagonal supports, and columns. The bottom beam is fixed to the ground around the caisson by fastening bolts laid around the caisson. The columns are fixed to the top of the bottom beam by bolts. The diagonal supports are fixed between the bottom beam and the columns by bolts.

3. The pressurized caisson construction device according to claim 2, characterized in that, The side wall of the column is fixed with a reinforcing plate by bolts. Both the reinforcing plate and the column are provided with long strip-shaped sliding grooves. The side wall of the jack retainer is connected with bolts that extend into the sliding grooves. The bolts are used to adjust the height of the jack retainer on the side wall of the column.

4. The pressurized caisson construction device according to claim 1, characterized in that, Several pressure-pressurizing components are installed between the pressure-pressurizing bracket and the hydraulic jack, and the pressure-pressurizing components are fixed together by bolts.

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