Steel-wood combined double-layer retaining wall structure of manual hole digging pile

Abstract

The utility model discloses a manual hole digging pile steel and wood combined double-layer retaining wall structure, and relates to the technical field of pile hole construction protection, the manual hole digging pile steel and wood combined double-layer retaining wall structure comprises fan-shaped pile casing pieces, a splicing mechanism and a wood pattern mechanism, the fan-shaped pile casing pieces are spliced and fastened through the splicing mechanism to form a cylinder shape, and the wood pattern mechanism comprises vertical reinforcing ribs, annular hoops and wood pattern protective plates. Vertical reinforcing ribs are symmetrically distributed on the outer side of the pile casing mechanism, annular hoops are arranged on the inner sides of the vertical reinforcing ribs, and wood pattern protection plates are arranged on the outer sides of the annular hoops between the vertical reinforcing ribs. According to the utility model, the wood pattern protection plates are matched with the annular hoops and the vertical reinforcing ribs, so that low-cost digging pile protection wall arrangement can be realized, construction can be carried out by matching with an assembled steel casing structure, digging pile construction protection under any complicated geological conditions can be realized, the steel casing structure can be completely disassembled, recycled and reused, geological conditions do not need to be considered, and the construction cost is reduced. And the construction safety of the manual hole digging pile is improved under different soil textures.

Description

Technical Field

[0001] This utility model relates to the field of pile hole construction protection technology, and in particular to a steel-wood composite double-layer protective wall structure for manually excavated piles. Background Technology

[0002] In situations with poor geological and construction conditions, manual excavation of bored piles makes it difficult to guarantee the safety of construction workers, especially when encountering complex geological conditions such as confined water, fluid silt layers, and quicksand layers, which can easily lead to safety and quality accidents. Therefore, the "manual excavation technology for foundation piles" is listed as one of the 13 "restricted" construction technologies in the Ministry of Housing and Urban-Rural Development's "Catalogue of Prohibited and Restricted Technologies for Housing Construction and Municipal Infrastructure Projects (First Batch)". However, because the manual excavation technology for bored piles does not require large machinery, it remains the best choice under special construction conditions to achieve the construction objectives, provided that construction safety can be guaranteed.

[0003] Traditional manually excavated bored piles use steel casings or precast concrete retaining walls. After drilling, it is necessary to determine whether the retaining wall can be removed based on the soil conditions. This results in the steel casings or precast concrete being unable to be removed and recycled in some quicksand geological conditions, greatly increasing construction costs and posing safety hazards during bored pile construction. Therefore, this utility model proposes a steel-wood composite double-layer retaining wall structure for manually excavated bored piles to solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a steel-wood composite double-layer retaining wall structure for manually excavated piles, which reduces the cost of laying retaining walls for excavated piles, adapts to the protection of excavated piles in complex geological conditions, can be dismantled and recycled, and improves the safety of manually excavated pile construction.

[0005] A steel-wood composite double-layer retaining wall structure for manually excavated bored piles includes several fan-shaped retaining tubes; the fan-shaped retaining tubes are fastened together to form a cylindrical shape by a splicing mechanism; it also includes a wooden mold mechanism; vertical reinforcing ribs and circumferential hoops are provided on the outer side of the fan-shaped retaining tubes; a wooden mold guard plate is provided between each of the vertical reinforcing ribs; the wooden mold guard plate is located outside the circumferential hoop.

[0006] Furthermore, the inner side of the fan-shaped casing is provided with longitudinal reinforcement bars for the support piles; a support pile sleeve is provided between the fan-shaped casing and the longitudinal reinforcement bars for the support piles; the longitudinal reinforcement bars for the support piles and the support pile sleeve are fixedly connected by spot welding.

[0007] Furthermore, the inner side of the fan-shaped protective sleeve is provided with several evenly distributed horizontal circumferential ribs and longitudinal ribs; the horizontal circumferential ribs and longitudinal ribs are arranged vertically and alternately.

[0008] Furthermore, the splicing mechanism includes bolt holes, positioning studs, and splicing bolts; the bolt holes are evenly distributed on both sides and the bottom of the fan-shaped protective sleeve; the positioning studs are evenly distributed on the top of the fan-shaped protective sleeve; and the splicing bolts are disposed in the bolt holes.

[0009] Furthermore, the positioning stud corresponds to the bolt hole on the lower side of the adjacent sector-shaped protective sleeve; the positioning stud passes through the bolt hole on the lower side of the adjacent sector-shaped protective sleeve and is screwed with a fastening nut.

[0010] Furthermore, four sets of vertical reinforcing ribs are symmetrically arranged; the circumferential hoop is spot-welded to the vertical reinforcing ribs for fixed connection.

[0011] Furthermore, the wooden mold guard plate is provided with a positioning plate slot on the splicing side; a positioning insert plate is provided between the positioning plate slots; the wooden mold guard plate is distributed in a ring splicing pattern close to the outer side of the circumferential hoop.

[0012] The beneficial effects of this utility model are as follows: by setting up wooden formwork protective plates in conjunction with circumferential hoops and vertical reinforcing bars, low-cost wall protection for bored piles can be achieved. Combined with the assembled steel casing structure, construction protection for bored piles in any complex geological conditions can be achieved. Moreover, the steel casing structure can be 100% dismantled, recycled and reused without considering geological conditions, thus ensuring improved safety of manually excavated bored pile construction under different soil conditions. Attached Figure Description

[0013] Figure 1 This is a top view of the structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the wooden mold mechanism of this utility model.

[0015] Figure 3 This is a schematic diagram of the splicing of the fan-shaped protective sleeve of this utility model.

[0016] The components include: 1. Fan-shaped protective sleeve; 2. Vertical reinforcing ribs; 3. Circumferential hoops; 4. Wooden formwork protective plate; 5. Longitudinal reinforcement of support piles; 6. Support pile sleeves; 7. Horizontal circumferential ribs; 8. Longitudinal ribs; 9. Bolt holes; 10. Positioning studs; 11. Splicing bolts; 12. Fastening nuts; 13. Positioning plate slots; 14. Positioning inserts. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] See Figures 1-3This application discloses a steel-wood composite double-layer retaining wall structure for manually excavated bored piles, including several fan-shaped retaining tubes 1; the fan-shaped retaining tubes 1 are fastened together to form a cylindrical shape by a splicing mechanism; it also includes a wooden mold mechanism; vertical reinforcing ribs 2 and circumferential hoops 3 are provided on the outer side of the fan-shaped retaining tubes 1; a wooden mold guard plate 4 is provided between each of the vertical reinforcing ribs 2; the wooden mold guard plate 4 is located outside the circumferential hoop 3.

[0019] In this embodiment, four sets of vertical reinforcing ribs 2 are symmetrically arranged in a ring, and the circumferential hoop 3 is spot-welded to the vertical reinforcing ribs 2 for fixed connection.

[0020] Furthermore, the inner side of the fan-shaped casing 1 is provided with longitudinal reinforcement bars 5; a support pile sleeve 6 is provided between the fan-shaped casing 1 and the longitudinal reinforcement bars 5; the longitudinal reinforcement bars 5 and the support pile sleeve 6 are fixedly connected by spot welding.

[0021] The retaining pile sleeve 6 is close to the inner wall of the steel casing structure spliced ​​together by the fan-shaped casing plate 1.

[0022] Furthermore, the inner side of the fan-shaped protective sleeve 1 is provided with several evenly distributed horizontal circumferential ribs 7 and longitudinal ribs 8; the horizontal circumferential ribs 7 and longitudinal ribs 8 are arranged vertically and alternately.

[0023] Furthermore, the splicing mechanism includes bolt holes 9, positioning studs 10, and splicing bolts 11; the bolt holes 9 are evenly distributed on both sides and the bottom of the fan-shaped protective sleeve 1; the positioning studs 10 are evenly distributed on the top of the fan-shaped protective sleeve 1; and the splicing bolts 11 are disposed in the bolt holes 9.

[0024] Furthermore, the positioning stud 10 corresponds to the bolt hole 9 on the lower side of the adjacent sector-shaped protective sleeve 1; the positioning stud 10 passes through the bolt hole 9 on the lower side of the adjacent sector-shaped protective sleeve 1 and is screwed with a fastening nut 12.

[0025] Furthermore, the vertical reinforcing ribs 2 are symmetrically arranged in four groups; the circumferential hoop 3 is spot-welded to the vertical reinforcing ribs 2 for fixed connection.

[0026] Furthermore, the wooden mold guard plate 4 has positioning plate slots 13 on its splicing side; positioning inserts 14 are provided between the positioning plate slots 13; the wooden mold guard plate 4 is arranged in a ring splicing distribution close to the outer side of the circumferential hoop 3. Preferably, the wooden mold guard plate 4 is 150mm wide and 30mm thick.

[0027] This manually excavated bored pile steel-wood composite double-layer retaining wall structure is used by forming an outer retaining wall with external wooden formwork panels, vertical reinforcing bars, and circumferential hoops. After the soil is manually excavated, the lower fan-shaped retaining pipe panels are assembled to form a steel retaining pipe structure, and the excavation depth is increased sequentially. This ensures the safety of construction personnel. After the hole is completely formed and personnel are safely on the ground, the fan-shaped retaining pipe panels of the steel retaining pipe structure can be removed for recycling. The retaining wall formed by the external wooden formwork panels ensures that the hole will not collapse under various soil conditions.

[0028] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A steel-wood combined double-layer retaining wall structure for a manual hole digging pile, characterized by: It includes several fan-shaped protective sleeves (1); the fan-shaped protective sleeves (1) are fastened together to form a cylindrical shape by a splicing mechanism; it also includes a wooden mold mechanism; the outer side of the fan-shaped protective sleeves (1) is provided with vertical reinforcing ribs (2) and circumferential hoops (3); a wooden mold guard plate (4) is provided between each of the vertical reinforcing ribs (2); the wooden mold guard plate (4) is located outside the circumferential hoop (3).

2. The artificial hand-dug pile steel-wood combined double-layer retaining wall structure according to claim 1, characterized in that: The inner side of the fan-shaped protective sleeve (1) is provided with longitudinal reinforcement bars (5) of the support piles; a support pile sleeve (6) is provided between the fan-shaped protective sleeve (1) and the longitudinal reinforcement bars (5); the longitudinal reinforcement bars (5) of the support piles and the support pile sleeve (6) are fixedly connected by spot welding.

3. The steel-wood composite double-layer retaining wall structure for manually excavated bored piles according to claim 1, characterized in that: The inner side of the fan-shaped protective sleeve (1) is provided with several evenly distributed horizontal circumferential ribs (7) and longitudinal ribs (8); the horizontal circumferential ribs (7) and longitudinal ribs (8) are arranged vertically and alternately.

4. The artificial hand-dug pile steel-wood combined double-layer retaining wall structure according to claim 1, characterized in that: The splicing mechanism includes bolt holes (9), positioning studs (10), and splicing bolts (11); the bolt holes (9) are evenly distributed on both sides and the bottom of the fan-shaped protective sleeve (1); the positioning studs (10) are evenly distributed on the top of the fan-shaped protective sleeve (1); and the splicing bolts (11) are set inside the bolt holes (9).

5. The artificial hand-dug pile steel-wood combined double-layer retaining wall structure according to claim 4, characterized in that: The positioning stud (10) corresponds to the bolt hole (9) on the lower side of the adjacent sector-shaped protective sleeve (1); the positioning stud (10) passes through the bolt hole (9) on the lower side of the adjacent sector-shaped protective sleeve (1) and is screwed with a fastening nut (12).

6. The artificial hand-dug pile steel-wood combined double-layer retaining wall structure according to claim 1, characterized in that: The vertical reinforcing ribs (2) are symmetrically arranged in four groups; the circumferential hoop (3) is spot-welded to the vertical reinforcing ribs (2).

7. The artificial hand-dug pile steel-wood combined double-layer retaining wall structure according to claim 1, characterized in that: The wooden mold guard plate (4) is provided with a positioning plate slot (13) on the splicing side; a positioning insert plate (14) is provided between the positioning plate slots (13); the wooden mold guard plate (4) is arranged in a ring splicing distribution close to the outer side of the circumferential hoop (3).

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