Construction method pile profile steel positioning and fixing device

Abstract

The utility model discloses a construction method pile profile steel positioning and fixing device which is H-shaped profile steel and comprises a leveling mechanism and a positioning and fixing mechanism. The leveling mechanism comprises a left support and a right support which are arranged in parallel; the left support and the right support are arranged on the two sides of a pile hole respectively. Leveling units are arranged on the left support and the right support; the positioning and fixing mechanism comprises a connecting piece and a reinforcing steel bar; the two ends of the connecting piece are fixed to the left support and the right support respectively. A positioning hole matched with the cross section of the H-shaped steel is formed in the connecting piece; a plurality of vertically arranged first fixing holes are formed in the left support and the right support, and a plurality of vertically arranged second fixing holes matched with the first fixing holes are formed in a flange plate of the H-shaped steel; the steel bars penetrate through the first fixing holes and the second fixing holes, and the H-shaped steel is fixed to the construction method pile section steel positioning and fixing device. The device can ensure section steel insertion perpendicularity, improve section steel insertion success rate and section steel insertion precision, and avoid reworking and reinsertion of section steel.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit engineering, and in particular relates to a construction method pile steel positioning and fixing device. Background Art

[0002] The construction sequence of the construction method pile generally includes positioning → trench excavation → pile hole formation → cement soil production and pouring → steel section insertion → crown beam construction. That is, in the construction method pile, it is necessary to insert the steel section into the pile hole as its stress reinforcement material before the cement soil mixture hardens until the cement hardens, forming a seamless underground wall with certain strength and rigidity. In the existing construction, the insertion of the steel section usually relies on the steel section to sink by its own weight and the verticality is controlled by the plumb bob. Because the steel section is long and is easily disturbed by the outside world during the lowering process, the verticality of the steel section insertion is difficult to ensure, resulting in a low one-time insertion success rate. Moreover, the depth of the pile hole is generally deeper than the steel section, and the depth of the steel section inserted into the pile hole may have a large error, resulting in low insertion depth accuracy. The solution to the above problem is usually to rework and re-insert the steel section. However, the resistance is large when the steel section is pulled out, so it is difficult to recover the steel section, and the recovery rate of the steel section is low. Utility Model Content

[0003] The main purpose of the utility model is to provide a method pile steel positioning and fixing device, which can ensure the verticality of steel insertion, improve the success rate and precision of steel insertion, and avoid rework and re-insertion of steel.

[0004] The technical solution adopted by the utility model is:

[0005] A method pile steel positioning and fixing device, comprising a leveling mechanism and a positioning and fixing mechanism; the steel is an H-shaped steel;

[0006] The leveling mechanism comprises a left support and a right support arranged in parallel; the left support and the right support are respectively placed on both sides of the pile hole; and a leveling unit is provided on the left support and the right support;

[0007] The positioning and fixing mechanism includes a connecting piece and a steel bar; the two ends of the connecting piece are respectively fixed on the left support and the right support; the connecting piece is provided with a positioning hole adapted to the cross section of the H-shaped steel; a plurality of vertically arranged first fixing holes are provided on the left support and the right support, and a plurality of vertically arranged second fixing holes adapted to the first fixing holes are provided on the flange plate of the H-shaped steel; the steel bar passes through the first fixing hole and the second fixing hole to fix the H-shaped steel on the construction method pile steel positioning and fixing device.

[0008] Preferably, there are at least two connecting pieces, which are arranged in parallel up and down; after the H-shaped steel passes through the positioning holes on the connecting piece in sequence, the H-shaped steel is fixed to the construction method pile steel positioning and fixing device by two steel bars; this structure can ensure the verticality of the H-shaped steel insertion.

[0009] Preferably, the positioning hole is 1 to 2 cm wider than the cross section of the H-shaped steel to facilitate the insertion of the H-shaped steel and improve construction efficiency.

[0010] Preferably, the connecting member is an I-beam, and the two flange plates of the I-beam are respectively welded vertically and fixed on the left support and the right support to form a stable frame; the web of the I-beam is provided with positioning holes that are compatible with the cross-section of the H-beam; this structure can ensure the stability and reliability of the entire structure.

[0011] Preferably, the connecting member is a steel plate, and the two ends of the steel plate are respectively fixed on the left support and the right support; the steel plate is provided with positioning holes that are compatible with the cross-section of the H-shaped steel; the structure is very simple.

[0012] Preferably, the left support and the right support are T-shaped steels, and the leveling unit is arranged on the flange plate of the T-shaped steel; the two ends of the connecting piece are respectively fixed on the web plate of the T-shaped steel; local materials are used, so that the whole device is simple and convenient to manufacture, and the manufacturing cost is low.

[0013] Preferably, the left support and the right support both include a horizontal plate and a vertical plate, the horizontal plate and the vertical plate form a T-shape, and the leveling unit is arranged on the horizontal plate; the two ends of the connecting member are respectively fixed on the vertical plates; the structure is simple and reliable.

[0014] Preferably, the horizontal plate and the vertical plate are integrally formed to make the entire structure more stable.

[0015] Preferably, the leveling unit includes a leveling bolt and a level bubble. The leveling bubble and the leveling bolt are both arranged on the flange plate of the T-shaped steel, and the device is ensured to be placed horizontally by adjusting the leveling bolt.

[0016] Preferably, the vertical plates of the left support and the right support are at least 0.2 meters away from the bored piles to facilitate installation.

[0017] The I-beams are of the same model, and the T-beams of the left and right supports are of the same model; the flange plates of the left and right T-beams are flush and placed on the ground. The I-beam has a hole in the middle, and the shape of the hole is consistent with the cross-section of the inserted H-beam.

[0018] The beneficial effects of the utility model are:

[0019] T-shaped steel, H-shaped steel, I-shaped steel, steel plates, etc. can be used on site to save costs;

[0020] By setting the leveling mechanism and the positioning and fixing mechanism, the verticality of the steel section insertion can be ensured, the success rate of the steel section insertion can be improved, the rework and re-insertion of the steel section can be avoided, the resistance of the steel section withdrawal can be reduced, the recovery rate of the steel section withdrawal can be improved, and the problem of the difficulty in controlling the verticality of the steel section insertion can be solved;

[0021] The positioning and fixing device is set to improve the insertion accuracy of the steel section, avoid rework and re-insertion of the steel section, and solve the problem of low depth accuracy of the steel section inserted into the pile hole;

[0022] The structure is simple and reliable, and it is easy to use.

[0023] It is easy to manufacture, has strong maneuverability and a wide range of applications. It can be used in wide sections such as construction pile support and irregularly widened sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the main structure of the pile steel positioning and fixing device in the construction method of Example 1;

[0026] Figure 2 is a schematic diagram of the top view of the pile steel positioning and fixing device in the construction method of Example 1;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the pile steel positioning and fixing device in the construction method of Example 1;

[0028] Figure 4 A schematic diagram of the main structure of the pile steel positioning and fixing device in the construction method of Example 2;

[0029] In the figure: 1. Left support, 2. Right support, 3. Upper connecting piece, 4. Lower connecting piece, 5. H-shaped steel, 6. Rebar, 7. First fixing hole, 8. Second fixing hole, 9. Positioning hole, 10. Leveling bolt, 11. Level bubble. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] Example 1

[0032] See also Figure 1-Figure 3, a method pile steel positioning and fixing device, which includes a leveling mechanism and a positioning and fixing mechanism; the steel is an H-shaped steel 5. The leveling mechanism includes a left support 1 and a right support 2 arranged in parallel. The left support 1 and the right support 2 are respectively placed at 0.2 meters on both sides of the pile hole; a leveling unit is provided on the left support 1 and the right support 2. In this embodiment, the left support 1 and the right support 2 both include a horizontal plate and a vertical plate, and the horizontal plate and the vertical plate form a T shape and are integrally formed. The leveling unit includes a leveling bolt 10 and a level bubble 11. The leveling bolt 10 is arranged on the horizontal plates of the left support 1 and the right support 2, and the level bubble 11 is arranged on the horizontal plate of the left support 1. By adjusting the leveling bolt, the device can be placed horizontally.

[0033] The positioning and fixing mechanism includes a connecting piece and a steel bar 6; the two ends of the connecting piece are respectively fixed on the left support 1 and the right support 2; the connecting piece is provided with a positioning hole 9 which is adapted to the cross section of the H-shaped steel 5 and is 1 cm wider than the cross section of the H-shaped steel 5. In the present embodiment, there are two connecting pieces (an upper connecting piece 3 and a lower connecting piece 4, which are arranged in parallel up and down), both of which are steel plates. The two ends of the steel plate are respectively fixed on the vertical plates of the left support 1 and the right support 2. The positioning holes 9 on the upper connecting piece 3 and the lower connecting piece 4 are aligned up and down. A first fixing hole 7 is provided on the vertical plates of the left support 1 and the right support 2, and a second fixing hole 8 adapted to the first fixing hole 7 is provided on the flange plate of the H-shaped steel 5. In the present embodiment, the first fixing hole 7 and the second fixing hole 8 are both arranged in two rows, and a plurality of holes are arranged vertically in each row, so as to accurately adjust the depth of the H-shaped steel 5 inserted into the pile hole. After the H-shaped steel 5 passes through the positioning holes 9 on the lower connecting piece 4 and the upper connecting piece 3 in sequence, when the H-shaped steel 5 is inserted to the designed depth, two steel bars 6 pass through the first fixing hole 7 and the second fixing hole 8 to fix the H-shaped steel 5 on the construction method pile steel positioning and fixing device to prevent the H-shaped steel 5 from tilting.

[0034] Example 2

[0035] See also Figure 4, which is different from Example 1: the left support 1 and the right support 2 are two T-steels of the same model (left T-steel and right T-steel); the leveling bubble 11 and the leveling bolt 10 are both arranged on the flange plate of the T-steel, and the device is ensured to be placed horizontally by adjusting the leveling bolt 10. The upper connecting member 3 and the lower connecting member 4 are two I-steels of the same model. The two flange plates of the I-steel are vertically welded and fixed on the webs of the left T-steel and the right T-steel to form a stable frame. The web of the I-steel is provided with positioning holes 9 that are compatible with the cross-section of the H-steel 5. Two rows of first fixing holes 7 are provided on the webs of the left T-steel and the right T-steel, and there are a plurality of first fixing holes 7 in each row. A second fixing hole 8 matched with the first fixing hole 7 is provided on the flange plate of the H-beam 5, that is, two rows of second fixing holes 8 are provided on the flange plate of the H-beam 5, and each row of second fixing holes 8 has a plurality of second fixing holes 8; after the H-beam 5 passes through the positioning holes 9 on the lower connecting member 4 and the upper connecting member 3 in sequence, when the H-beam 5 is inserted to the designed depth, two steel bars 6 pass through the first fixing hole 7 and the second fixing hole 8 to fix the H-beam 5 on the construction method pile steel positioning and fixing device.

[0036] When in use, the flanges of the left and right T-shaped steels are flush and placed on the ground, with the web spacing of 0.2 meters from the pile hole; the positioning hole 9 is located in the middle of the web of the I-shaped steel. The opening shape of the positioning hole 9 is consistent with the cross-section of the inserted H-shaped steel 5. As the strength of the cement soil increases, the H-shaped steel 5 is stably fixed in the cement soil and no longer sinks, and the fixing steel bar 6 is taken out for subsequent construction and recycling.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A method pile steel positioning and fixing device, wherein the steel is an H-shaped steel, characterized in that: It includes a leveling mechanism and a positioning and fixing mechanism; The leveling mechanism comprises a left support and a right support arranged in parallel; the left support and the right support are respectively placed on both sides of the pile hole; and a leveling unit is provided on the left support and the right support; The positioning and fixing mechanism includes a connecting piece and a steel bar; the two ends of the connecting piece are respectively fixed on the left support and the right support; the connecting piece is provided with a positioning hole adapted to the cross section of the H-shaped steel; a plurality of vertically arranged first fixing holes are provided on the left support and the right support, and a plurality of vertically arranged second fixing holes adapted to the first fixing holes are provided on the flange plate of the H-shaped steel; the steel bar passes through the first fixing hole and the second fixing hole to fix the H-shaped steel on the construction method pile steel positioning and fixing device.

2. The method pile steel positioning and fixing device according to claim 1 is characterized in that: There are at least two connecting pieces, which are arranged in parallel up and down; after the H-shaped steel passes through the positioning holes on the connecting pieces in sequence, the H-shaped steel is fixed on the construction method pile steel positioning and fixing device by the steel bars.

3. The method pile steel positioning and fixing device according to claim 1 or 2, characterized in that: The positioning hole is 1 to 2 cm wider than the cross section of the H-shaped steel.

4. The method pile steel positioning and fixing device according to claim 1 or 2, characterized in that: The connecting piece is an I-beam, and two flange plates of the I-beam are respectively fixed on a left support and a right support; a positioning hole matching the cross section of the H-beam is provided on the web of the I-beam.

5. The method pile steel positioning and fixing device according to claim 1 or 2, characterized in that: The connecting piece is a steel plate, and the two ends of the steel plate are respectively fixed on the left support and the right support; the steel plate is provided with positioning holes that are compatible with the cross section of the H-shaped steel.

6. The method pile steel positioning and fixing device according to claim 1 is characterized in that: The left support and the right support are T-shaped steels, and the leveling unit is arranged on the flange plate of the T-shaped steel; and the two ends of the connecting piece are respectively fixed on the web plate of the T-shaped steel.

7. The method pile steel positioning and fixing device according to claim 1 is characterized in that: The left support and the right support both include a horizontal plate and a vertical plate, the horizontal plate and the vertical plate form a T-shape, and the leveling unit is arranged on the horizontal plate; and the two ends of the connecting member are respectively fixed on the vertical plates.

8. The method pile steel positioning and fixing device according to claim 7 is characterized in that: The horizontal plate and the vertical plate are integrally formed.

9. The method pile steel positioning and fixing device according to claim 1, 6 or 7, characterized in that: The leveling unit includes a leveling bolt and a level bubble.

10. The method pile steel positioning and fixing device according to claim 1 is characterized in that: The left support and the right support are at least 0.2 meters away from the bored pile.

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