Reverse underground engineering steel concrete pile-column vertical supporting device

Abstract

The invention discloses a top-down underground engineering steel concrete pile-column vertical supporting device, and relates to the technical field of top-down underground engineering, the top-down underground engineering steel concrete pile-column vertical supporting device comprises a base, a concentric-square-shaped plate is slidably arranged on the upper surface of the base, a supporting mechanism is arranged between the base and the concentric-square-shaped plate, and a plurality of through holes are formed in the outer surface of the concentric-square-shaped plate in a surrounding mode; a plurality of through holes are formed in the upper end of the hollow-square-shaped plate, a concrete inserting rod is arranged in each through hole in a sliding mode, a pushing mechanism is arranged between the concrete inserting rods, a plurality of hollow-square-shaped molds are arranged at the upper end of the hollow-square-shaped plate in a sliding mode, and fixing mechanisms are arranged between the corresponding hollow-square-shaped molds and the hollow-square-shaped plate and between every two corresponding hollow-square-shaped molds. According to the concrete column, each concrete insertion rod is arranged in each through hole, and each concrete insertion rod is inserted into soil, so that the stability of the concrete column is improved, and the later inclination of the concrete column is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of reverse underground engineering, and in particular to a steel concrete pile-column vertical support device for reverse underground engineering. Background Art

[0002] The top-down construction method is an unconventional construction method, which is generally adopted in special circumstances such as deep foundations, complex geology, and high groundwater levels. Before work, it is usually necessary to cast or drive intermediate supporting piles and columns at relevant locations inside the building to serve as support for the deadweight of the upper structure and construction loads before the bottom slab is sealed during construction.

[0003] Among them, the publication number is CN205399397U, which is a variable-section wall-type vertical support structure for reverse construction. The support structure includes: a basement wall, the basement wall includes a basement wall steel cage and a basement wall concrete; the basement wall has a first thickness; a wall foundation, the wall foundation includes a wall foundation steel cage and a wall foundation concrete; the wall foundation extends downward from the bottom of the basement wall; the wall foundation has a second thickness, and the second thickness is greater than the first thickness; the connection between the basement wall and the wall foundation is the top elevation position of the basement floor.

[0004] However, the existing supporting structure simply inserts the concrete column into the ground. After the concrete column is inserted, it is easy to cause the concrete column to tilt due to external collision, which not only leads to a poor supporting effect, but also affects the aesthetics of the building. Summary of the invention

[0005] In view of the above-mentioned problems existing in the existing variable-section wall type vertical support structure used in the reverse construction method, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a vertical support device for steel concrete piles and columns for reverse underground engineering, which solves the problem of variable-section wall-type vertical support structure used in reverse construction.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A vertical support device for piles and columns of steel concrete in reverse underground engineering, comprising a base, a circular plate slidably provided on the upper surface of the base, a supporting mechanism provided between the base and the circular plate, a plurality of through holes arranged around the outer surface of the circular plate, a concrete plug rod slidably provided inside each of the through holes, a pushing mechanism provided between each of the concrete plug rods, a plurality of circular molds slidably provided on the upper end of the circular plate, a fixing mechanism provided between the corresponding circular molds and the circular plate and between the corresponding two circular molds.

[0009] Preferably, the supporting mechanism includes a plurality of supporting rods and a plurality of blocking blocks, each supporting rod is fixedly connected to the upper surface of the base, a plurality of cavities are opened inside the circular plate, one end of each supporting rod passes through the lower surface of the corresponding cavity, and each blocking block is slidably arranged inside the corresponding cavity and fixedly connected to the upper end of the corresponding supporting rod.

[0010] Preferably, the pushing mechanism includes a conical block, a baffle, a telescopic rod and a plurality of springs, the conical block is fixedly connected to the upper surface of the base and matches each concrete plug rod, each baffle is respectively fixedly connected to the upper surface of the corresponding concrete plug rod, each telescopic rod is respectively fixedly connected between the circular plate and the corresponding baffle, and each spring is respectively slidably sleeved on the rod wall of the corresponding telescopic rod.

[0011] Preferably, the fixing mechanism includes a plurality of plug plates and a plurality of bolts, each of the plug plates is respectively fixedly connected to the upper end of the circular plate and each circular mold, a slot is provided at the lower end of each circular mold, each of the slots is respectively matched with the corresponding plug plates, each of the slots and one side of each plug plate are provided with an internal thread groove, and each of the bolts is respectively threadedly sleeved on the inside of the corresponding internal thread groove.

[0012] Preferably, the circular mold includes two first mold plates, two second mold plates and a plurality of trapezoidal clips, each of the trapezoidal clips being fixedly connected to the two ends of the corresponding second mold plates, and each of the first mold plates is provided with two trapezoidal clip slots on one side, and each of the trapezoidal clip strips is slidably arranged inside the corresponding trapezoidal clip slots.

[0013] Preferably, one end of each of the concrete insertion rods is provided with an inclined surface, and each of the inclined surfaces fits with the conical surface of the conical block.

[0014] Preferably, the base is cast by concrete.

[0015] Preferably, the lower end of the base is in an inverted cone shape.

[0016] Preferably, the rod wall of each support rod is jointly sleeved with a circular sealing pad.

[0017] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0018] 1. By arranging a concrete plug rod inside each through hole and inserting each concrete plug rod into the soil, the stability of the concrete column can be improved, thereby preventing the concrete column from tilting in the later stage.

[0019] 2. By splitting the circular mold into two first mold plates and two second mold plates, the recycling of the circular mold is facilitated, thereby making the device more environmentally friendly and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 For the present invention Figure 1 A cross-sectional view of

[0022] Figure 3 For the present invention Figure 2 Schematic diagram of the internal structure;

[0023] Figure 4 For the present invention Figure 1 Top view of the medium-circular mold.

[0024] Description of reference numerals:

[0025] 1. Base; 2. Round plate; 3. Concrete plug rod; 4. Round mold; 5. Support rod; 6. Block; 7. Conical block; 8. Baffle; 9. Telescopic rod; 10. Spring; 11. Plug plate; 12. Bolt; 13. First mold plate; 14. Second mold plate; 15. Trapezoidal clip strip; 16. Round sealing pad. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The embodiment of the present invention discloses a vertical support device for steel concrete piles and columns for reverse underground engineering.

[0028] Embodiment 1

[0029] Reference Figure 1-3 A vertical supporting device for piles and columns of steel concrete for reverse underground engineering includes a base 1, a circular plate 2 is slidably provided on the upper surface of the base 1, a supporting mechanism is provided between the base 1 and the circular plate 2, the supporting mechanism includes a plurality of supporting rods 5 and a plurality of stoppers 6, each supporting rod 5 is fixedly connected to the upper surface of the base 1, a plurality of cavities are opened inside the circular plate 2, one end of each supporting rod 5 respectively passes through the lower surface of the corresponding cavity, each stopper 6 is respectively slidably provided inside the corresponding cavity and is respectively fixedly connected to the upper end of the corresponding supporting rod 5, and the base 1 is cast by concrete.

[0030] First, a hole is pre-drilled in the ground, and then the base 1 of the device is placed downward into the hole. Because the base 1 is cast with concrete, it has a large weight. At this time, each support rod 5 can be used to prevent the pre-circular plate 2 of the base 1 from separating when falling, thereby playing a supporting role.

[0031] Reference Figure 1-3A plurality of through holes are provided around the outer surface of the circular plate 2, and a concrete plug rod 3 is slidably arranged inside each through hole. A pushing mechanism is arranged between each concrete plug rod 3, and the pushing mechanism includes a conical block 7, a baffle 8, a telescopic rod 9 and a plurality of springs 10. The conical block 7 is fixedly connected to the upper surface of the base 1 and matches each concrete plug rod 3. Each baffle 8 is respectively fixedly connected to the upper surface of the corresponding concrete plug rod 3. Each telescopic rod 9 is respectively fixedly connected between the circular plate 2 and the corresponding baffle 8. Each spring 10 is respectively slidably sleeved on the rod wall of the corresponding telescopic rod 9. One end of each concrete plug rod 3 is provided with an inclined surface, and each inclined surface is fitted with the conical surface of the conical block 7.

[0032] When the base 1 falls to the bottom of the hole, the base 1 is stationary, but the circular plate 2 still moves downward, and then the conical blocks 7 can squeeze the corresponding concrete plugs 3 respectively, and then the concrete plugs 3 can be inserted into the soil on both sides of the hole to play a supporting role and prevent the subsequent concrete support columns from tilting.

[0033] Reference Figure 1-3 A plurality of circular molds 4 are slidably arranged at the upper end of the circular plate 2, and a fixing mechanism is arranged between the corresponding circular molds 4 and the circular plate 2 and between the corresponding two circular molds 4, the fixing mechanism includes a plurality of plug plates 11 and a plurality of bolts 12, each plug plate 11 is respectively fixedly connected to the upper end of the circular plate 2 and each circular mold 4, a slot is provided at the lower end of each circular mold 4, each slot is respectively matched with the corresponding plug plate 11, each slot and one side of each plug plate 11 are provided with an internal thread groove, and each bolt 12 is respectively threadedly sleeved on the inside of the corresponding internal thread groove.

[0034] Each circular mold 4 is inserted into the outer surface of each corresponding plug plate 11 in turn, and then each circular mold 4 can be fixed by each bolt 12. When the device falls into the hole and stabilizes, concrete can be poured into the interior of the circular mold 4 to complete the pouring of the concrete column.

[0035] Embodiment 2

[0036] Based on Example 1, refer to Figure 4 The circular mold 4 includes two first mold plates 13, two second mold plates 14 and a plurality of trapezoidal clips 15. Each trapezoidal clip 15 is fixedly connected to the two ends of the corresponding second mold plates 14. Two trapezoidal clip grooves are provided on one side of each first mold plate 13. Each trapezoidal clip 15 is slidably arranged inside the corresponding trapezoidal clip groove.

[0037] The circular mold 4 is split into two first mold plates 13 and two second mold plates 14 to facilitate the recycling of the circular mold, thereby making the device more environmentally friendly and saving costs.

[0038] Embodiment 3

[0039] Based on Example 1, refer to Figure 1-3 , the lower end of the base 1 is in an inverted cone shape.

[0040] The inverted cone-shaped bottom can make it easier for the base 1 to be inserted into the soil, thereby further improving the stability of the concrete.

[0041] Embodiment 4

[0042] Based on Example 1, refer to Figure 1-3 The rod wall of each support rod 5 is commonly sleeved with a circular sealing pad 16.

[0043] The circular sealing pad 16 can be used to prevent concrete from falling off during concrete pouring.

Claims

1. A vertical support device for underground engineering steel concrete with piles and columns, comprising a base (1), characterized in that: A circular plate (2) is slidably arranged on the upper surface of the base (1), a supporting mechanism is arranged between the base (1) and the circular plate (2), a plurality of through holes are arranged around the outer surface of the circular plate (2), a concrete plug rod (3) is slidably arranged inside each of the through holes, a pushing mechanism is commonly arranged between each of the concrete plug rods (3), a plurality of circular molds (4) are slidably arranged on the upper end of the circular plate (2), and a fixing mechanism is arranged between the corresponding circular molds (4) and the circular plate (2) and between the corresponding two circular molds (4).

2. The reverse underground engineering steel concrete pile and column vertical support device according to claim 1 is characterized in that: The support mechanism comprises a plurality of support rods (5) and a plurality of stoppers (6), each support rod (5) being fixedly connected to the upper surface of the base (1), a plurality of cavities being provided inside the circular plate (2), one end of each support rod (5) respectively penetrating the lower surface of the corresponding cavity, and each stopper (6) being slidably arranged inside the corresponding cavity and fixedly connected to the upper end of the corresponding support rod (5).

3. The reverse underground engineering steel concrete pile and column vertical support device according to claim 1 is characterized in that: The pushing mechanism comprises a conical block (7), a baffle (8), a telescopic rod (9) and a plurality of springs (10); the conical block (7) is fixedly connected to the upper surface of the base (1) and matches each concrete plug rod (3); each baffle (8) is respectively fixedly connected to the upper surface of the corresponding concrete plug rod (3); each telescopic rod (9) is respectively fixedly connected between the circular plate (2) and the corresponding baffle (8); and each spring (10) is respectively slidably sleeved on the rod wall of the corresponding telescopic rod (9).

4. The reverse underground engineering steel concrete pile and column vertical support device according to claim 1 is characterized in that: The fixing mechanism comprises a plurality of plug plates (11) and a plurality of bolts (12); each of the plug plates (11) is respectively fixedly connected to the upper end of the circular plate (2) and each circular mold (4); a slot is provided at the lower end of each circular mold (4); each of the slots matches the corresponding plug plate (11); an internal thread groove is provided on one side of each of the slots and each of the plug plates (11); each of the bolts (12) is respectively threadedly sleeved inside the corresponding internal thread groove.

5. The reverse underground engineering steel concrete pile and column vertical support device according to claim 1 is characterized in that: The circular mold (4) comprises two first mold plates (13), two second mold plates (14) and a plurality of trapezoidal clip strips (15), each of the trapezoidal clip strips (15) being fixedly connected to two ends of the corresponding second mold plate (14), one side of each of the first mold plates (13) being provided with two trapezoidal clip grooves, each of the trapezoidal clip strips (15) being slidably arranged inside the corresponding trapezoidal clip groove.

6. The reverse underground engineering steel concrete pile-column vertical support device according to claim 1 is characterized in that: One end of each concrete insertion rod (3) is provided with an inclined surface, and each inclined surface fits with the conical surface of the conical block (7).

7. The reverse underground engineering steel concrete pile and column vertical support device according to claim 1 is characterized in that: The base (1) is made of concrete.

8. The reverse underground engineering steel concrete pile and column vertical support device according to claim 1 is characterized in that: The lower end of the base (1) is in an inverted cone shape.

9. The reverse underground engineering steel concrete pile-column vertical support device according to claim 1 is characterized in that: The rod wall of each support rod (5) is commonly sleeved with a circular sealing pad (16).

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