Sandy soil and backfill soil anchor rod non-pore-forming assembly

Abstract

The utility model discloses a sandy soil and backfill soil anchor rod non-pore-forming assembly, and belongs to the field of underground engineering. Comprising a steel strand, an anchor rod head assembly, a cushion assembly, an extrusion anchor fixing piece, a spline housing connecting module, a spline housing, an extrusion anchor, an anchor rod head, an anchor rod body, an anchorage device, a base plate, an inclined integral sizing block, an anchorage device steel strand fixing hole and an anchorage device mounting hole. Grouting can be directly carried out after drilling is finished, construction steps are saved, meanwhile, the inclined overall sizing block is changed into the overall sizing block from double-iron-sheet welding, the welding step is omitted, construction time is saved, construction efficiency is improved, meanwhile, the overall sizing block is designed to be of an integrated structure, yield strength is higher, and the structure is more stable.

Description

Technical Field

[0001] The utility model belongs to the field of underground engineering, and in particular relates to a sand and backfill soil anchor rod non-hole assembly. Background Art

[0002] The sand and backfill anchor rod non-hole assembly technology is developed to meet the needs of foundation stability and support structure, and is particularly suitable for complex geological conditions such as loose sand and artificial backfill. This technology uses a delicate and gentle installation method without large-scale drilling to provide additional support without destroying the soil structure to strengthen the foundation, support retaining walls, slope protection and other projects. This innovative assembly design and implementation method greatly improves the flexibility and safety of civil engineering projects in dealing with complex foundations and environmental conditions, but the existing method cannot bring in steel strands at the time of entry, delays grouting time, and has cumbersome procedures.

[0003] The existing anchor rod pull-type concrete retaining wall structure (publication number: CN204080856U) generally has the following problems during use:

[0004] 1. When the anchor head enters, the steel strand cannot enter together, and grouting cannot be carried out directly: Grouting is difficult: Under normal circumstances, the smooth entry of the steel strand into the hole can ensure the smooth passage of grouting. If the steel strand fails to enter with the anchor head, it may cause the grouting pipeline to be blocked or blocked, and thus grouting cannot be carried out effectively. Grouting is a key step in the installation of anchor rods, which is used to fill the gap between the drilled hole and the steel strand to ensure the anchoring strength and durability. Poor anchoring effect: If the grouting cannot be carried out completely, it will directly affect the bonding force between the anchor body and the surrounding rock. In this case, the tensile and shear strength of the anchor rod may not meet the design requirements, reducing the safety factor of the structure. Increased risk of repair and re-construction: If the initial installation fails to achieve the expected anchoring effect, re-construction or additional repair work may be required, which not only increases the project cost, but may also delay the progress of the project. Safety hazards: As a commonly used support structure, the stability of the anchor rod is directly related to the safety of the entire project. Poor anchoring may cause safety accidents in subsequent use, such as rock and soil sliding, structural deformation, etc., which pose a serious threat to personnel safety and project safety. Long-term durability is impaired: Grouting materials also play an anti-corrosion role in the anchor system. Incomplete grouting may accelerate the corrosion of anchors and steel strands and shorten their service life. Therefore, there is an urgent need for an anchor assembly that can be drilled with steel strands.

[0005] 2. The welding process of the inclined iron gasket is complicated and inconvenient to install: Structural weaknesses: Uneven welds may be produced during the welding process, introducing stress concentration points, which may become potential weaknesses for future structural failure. In addition, the welding area is susceptible to heat, which may change the microstructure and mechanical properties of the material. Increased construction time and cost: Welding is a technical and labor-intensive process that requires professional equipment and skills. This not only increases the construction time, but may also increase the cost of the project, especially when a large amount of welding is required. Construction quality is difficult to guarantee: Welding quality is affected by many factors, such as welder skills, equipment status, and environmental conditions. Inconsistent welding quality may lead to unstable product performance after construction, increasing the difficulty of subsequent inspection and maintenance. Safety risks: Poor welding may cause structural failures such as cracks and fractures during subsequent use. These problems may be prominent when subjected to heavy loads or encountering extreme environmental conditions, and may cause safety accidents in severe cases. Corrosion problems: The welding area may become more susceptible to corrosion due to changes in the corrosion properties of the heat-affected zone, especially when used in a humid or corrosive environment. Long-term exposure to this environment may cause the weld to become the starting point of corrosion, accelerating the damage of the entire component, so there is an urgent need for an anchor rod non-hole assembly that does not require welding.

[0006] 3. The welded inclined iron gasket is prone to leave weak connection structure as a whole: Insufficient structural strength: If there are defects such as pores, inclusions or incomplete welding in the welding part, these defects will weaken the overall structural strength of the inclined iron gasket and increase the risk of fracture or deformation during construction or use. Fatigue fracture: Due to the presence of the heat-affected zone in the welding area, the material properties may be different, resulting in the heat-affected zone being more susceptible to fatigue fracture than other areas. Under the influence of cyclic loads, these weak welding points may gradually crack and eventually lead to structural failure. Accelerated corrosion: The chemical and physical properties of the welding area may be different from those of the parent material, which may make these areas more susceptible to corrosion. Especially in corrosive environments, welds and their surrounding areas may become key areas of corrosion, thereby shortening the service life of the component. Increased safety hazards: As part of the anchor assembly, the structural integrity of the inclined iron gasket is critical to the stability of the entire anchoring system. Structural weaknesses caused by poor welding may cause the overall structure to collapse when subjected to greater forces or encountering extreme conditions, thereby causing safety accidents. Difficulty in maintenance and overhaul: Weak points caused by welding may require regular inspection and special maintenance, which not only increases maintenance costs, but may also cause the project to be suspended due to inspection and repair work, affecting project efficiency. Therefore, there is an urgent need for an anchor rod non-hole assembly with a more stable structure. Utility Model Content

[0007] An anchor rod non-hole assembly for sand and backfill soil, comprising a steel strand, an anchor rod head assembly, a cushion assembly, an extruded anchor fixing plate, a spline sleeve connection module, a spline sleeve, an extruded anchor, an anchor rod head, an anchor rod body, an anchor, a cushion plate, an oblique integral cushion iron, an anchor steel strand fixing hole, and an anchor installation hole;

[0008] It comprises a steel strand, an anchor head assembly and a cushion assembly, wherein the upper end of the steel strand is connected to the cushion assembly, and the lower end of the steel strand is connected to the anchor head assembly;

[0009] A pad is provided at the lower end of the pad assembly, an inclined integral pad is provided on the pad, and an anchor is provided at the upper end of the inclined integral pad;

[0010] An anchor rod body is arranged in the middle of the anchor rod head assembly, an anchor rod head is arranged at the top of the anchor rod body, an extruded anchor fixing plate is arranged at the rear end of the anchor rod head, a spline sleeve connection module is arranged at the rear end of the extruded anchor fixing plate, and a spline sleeve is arranged at the rear end of the spline sleeve connection module.

[0011] Furthermore, an anchor installation hole is provided between the base plate and the oblique integral base iron, and an anchor steel strand fixing hole is provided on the anchor.

[0012] Furthermore, the steel strand passes through a squeeze anchor fixing sheet and is fixed at the end surface by means of a squeeze anchor.

[0013] Furthermore, the spline sleeve connection module is embedded in the spline sleeve, and the spline sleeve can be disassembled after use.

[0014] Furthermore, the spline sleeve connection module, the anchor rod body and the anchor rod head are designed as an integrated whole.

[0015] Furthermore, the anchor steel strand fixing hole adopts a double-hole design.

[0016] The utility model has the following beneficial effects:

[0017] 1. By setting the squeeze anchor and squeeze anchor fixing plate, the anchor head assembly can carry the steel strand when drilling, and grouting can be carried out directly after the drilling is completed, which brings the following advantages: Improved construction efficiency: Since the design of the squeeze anchor and squeeze anchor fixing plate allows the anchor head assembly to carry the steel strand directly when drilling, it simplifies the installation steps of the steel strand. In traditional construction methods, the steel strand needs to be installed separately after the drilling is completed, and this integrated design greatly reduces the construction steps and time. Direct grouting capability: Grouting can be carried out directly after the drilling is completed, which is crucial to improving construction speed and simplifying the process. Direct grouting ensures that the gap between the drilled hole and the steel strand is quickly and evenly filled, reducing the difficulty of grouting and possible voids or unevenness. Enhanced structural safety: Since grouting can be carried out more quickly and evenly, this design improves the overall stability and durability of the anchor body. A fully grouted anchor rod can better resist the impact of the environment and load, thereby improving the long-term safety of the structure. Reduced material waste: Accurate design and construction process can effectively reduce material waste. Since the steel strands are introduced together with the anchor heads and the grouting is carried out directly, this reduces the material loss caused by adjustments or re-operations during the process. Improved quality control: The integrated construction process reduces quality fluctuations caused by multiple operations. The integrated entry and direct grouting of anchor heads and steel strands make the construction more standardized, reducing human errors and quality control problems. Reduced environmental impact: Due to the reduction in construction steps and the reduction in material waste, the negative impact of this design on the environment is also reduced accordingly. Reducing noise, dust and waste generation during the construction process helps to protect the environment. Economic benefits: Reducing construction time and material use directly reduces project costs. In addition, reduced necessary maintenance and long-term structural reliability also bring long-term economic benefits to the project.

[0018] 2. By changing the double iron sheet welding to the integral shim through the inclined integral shim, the welding step is eliminated to save construction time and bring the following advantages: Save construction time: The traditional double iron sheet welding method requires an additional welding process, which is not only time-consuming, but also requires professional welding equipment and technology. The integral shim design eliminates the welding step and directly simplifies the installation process, thereby significantly shortening the construction time. Improve structural consistency: The integral shim is made of a single material, avoiding the structural unevenness that may be caused by the welding interface. This consistent structure provides better mechanical properties and durability, and reduces potential weaknesses caused by poor welding. Enhance structural stability: Welding may introduce defects such as microcracks and stress concentration, which may affect the stability and safety of the structure. The seamless design of the integral shim means higher overall strength and less risk of structural failure. Reduce maintenance costs: Since welding is eliminated, the maintenance requirements of the integral shim are lower. The welded part may corrode or be damaged due to time and environmental factors, while the integral shim has a longer service life and lower maintenance frequency due to its simple structure. Improved safety: The stable and strong characteristics of the integral pad can provide more reliable anchoring support, which is essential to ensure the safety of the entire structure, especially in an environment subject to large loads and stresses.

[0019] 3. The integral pad adopts an integrated structural design, with no gaps in the middle, the yield strength is improved, the overall structure is more stable, and brings the following advantages: Enhanced structural strength and stability: The integral pad with an integrated structural design has no gaps for welding or bolting. This design significantly enhances the structural strength and stability of the pad. Since there are no seams or weak points, the integral pad can bear the load more evenly, reducing the risk of structural failure due to stress concentration. Improved yield strength: The integral structural pad usually has a higher yield strength due to the optimization of materials and manufacturing processes. This means that the pad can withstand greater forces without permanent deformation, which is an important guarantee for the integrity and functionality of the anchor system. Reduced maintenance requirements: Since the integral pad has no welds or other potential corrosion starting points, it has stronger corrosion resistance, thereby reducing the need and cost for long-term maintenance. This is especially important for applications exposed to harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of part A of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of part B of the utility model

[0023] In the figure: 1. Steel strand; 2. Anchor head assembly; 3. Washer assembly; 4. Extrusion anchor fixing plate; 5. Spline sleeve connection module; 6. Spline sleeve; 7. Extrusion anchor; 8. Anchor head; 9. Anchor body; 10. Anchor; 11. Pad; 12. Inclined integral washer; 13. Anchor steel strand fixing hole; 14. Anchor mounting hole. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, this is all.

[0027] Example

[0028] See also Figure 1-3 , the utility model provides a technical solution:

[0029] The invention comprises a steel strand 1, an anchor head assembly 2, and a cushion assembly 3, wherein the upper end of the steel strand 1 is connected to the cushion assembly 3, and the lower end of the steel strand 1 is connected to the anchor head assembly 2; a cushion plate 11 is arranged at the lower end of the cushion assembly 3, an inclined integral cushion iron 12 is arranged on the cushion plate 11, and an anchor 10 is arranged at the upper end of the inclined integral cushion iron 12; an anchor rod body 9 is arranged in the middle of the anchor head assembly 2, an anchor rod head 8 is arranged at the top end of the anchor rod body 9, an extruded anchor fixing plate 4 is arranged at the rear end of the extruded anchor fixing plate 4, and a spline is arranged at the rear end of the extruded anchor fixing plate 4 The sleeve connection module 5 has a spline sleeve 6 at the rear end thereof, an anchor mounting hole 14 is arranged between the pad 11 and the oblique integral pad 12, the anchor 10 has an anchor steel strand fixing hole 13, the steel strand 1 passes through the extrusion anchor fixing plate 4 and is fixed at the end face by the extrusion anchor 7, the spline sleeve connection module 5 is embedded in the spline sleeve 6, and the spline sleeve 6 can be disassembled after use, the spline sleeve connection module 5, the anchor rod body 9 and the anchor rod head 8 are designed as an integrated whole, and the anchor steel strand fixing hole 13 is designed as a double hole.

[0030]

[0031] When using sand and backfill anchor bolts, the design of squeeze anchors and squeeze anchor fixings provides significant efficiency advantages and structural optimization during the construction process. In specific applications, this design allows the anchor head assembly to carry the steel strand directly when drilling into the geological structure, greatly simplifying the multiple steps in traditional anchor installation. This integrated access method not only ensures the accurate position of the steel strand, but also allows grouting operations to be carried out immediately after drilling is completed, saving 20% ​​of construction time.

[0032] In addition, the design of the oblique integral pad in the anchor assembly has also changed from the traditional double iron sheet welding method to a modern integral pad design. This improvement eliminates the welding step, which not only reduces construction time, but also reduces potential structural weaknesses caused by welding, such as stress concentration and corrosion tendency at the weld. The use of the integral pad, through the integrated structural design, further enhances the yield strength of the pad, improves the stability and durability of the overall structure, and saves 15% of the installation time.

[0033] The integrated design of the integral pad not only improves the mechanical properties of the structure, but also ensures the uniformity and consistency of the overall structure due to its seamless characteristics. The structural integration of this design is better than that of traditional methods, and it can more effectively disperse the load during construction and use, reducing the risks caused by uneven materials and poor joints. This stable design ensures the reliability of the anchor rod when it is subjected to external forces, especially when it is subjected to tensile and shear forces, and can provide more stable support.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A sand and backfill anchor rod non-hole assembly, comprising a steel strand (1), an anchor rod head assembly (2), and a cushion assembly (3), characterized in that: The upper end of the steel strand (1) is connected to a cushion assembly (3), and the lower end of the steel strand (1) is connected to an anchor head assembly (2); A pad (11) is arranged at the lower end of the pad assembly (3), an inclined integral pad iron (12) is arranged on the pad (11), and an anchor (10) is arranged at the upper end of the inclined integral pad iron (12); An anchor rod body (9) is arranged in the middle of the anchor rod head assembly (2), an anchor rod head (8) is arranged at the top end of the anchor rod body (9), an extruded anchor fixing plate (4) is arranged at the rear end of the anchor rod head (8), a spline sleeve connection module (5) is arranged at the rear end of the extruded anchor fixing plate (4), and a spline sleeve connection module (6) is arranged at the rear end of the spline sleeve connection module (5).

2. The sand and backfill anchor rod non-hole assembly according to claim 1, characterized in that: An anchor installation hole (14) is provided between the pad (11) and the oblique integral pad iron (12), and an anchor steel strand fixing hole (13) is provided on the anchor (10).

3. The sand and backfill anchor rod non-hole assembly according to claim 1, characterized in that: The steel strand (1) passes through a squeeze anchor fixing plate (4) and is fixed at the end surface by means of a squeeze anchor (7).

4. The sand and backfill anchor rod non-hole assembly according to claim 1, characterized in that: The spline sleeve connection module (5) is embedded in the spline sleeve (6), and the spline sleeve (6) can be disassembled after use.

5. The sand and backfill anchor rod non-hole assembly according to claim 1, characterized in that: The spline sleeve connection module (5), the anchor rod body (9) and the anchor rod head (8) are of integrated design.

6. The sand and backfill anchor rod non-hole assembly according to claim 2, characterized in that: The anchor steel strand fixing hole (13) adopts a double hole design.

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