A plastic steel nail reinforcement structure

Abstract

The present invention discloses a plastic-steel nail reinforcement structure, which belongs to the technical field of slope protection, and comprises a cylinder and an auxiliary punching mechanism, wherein the cylinder is used to drive into the soil and reinforce the surrounding soil; the auxiliary punching mechanism is used to carry the cylinder and drive the cylinder into the soil. The plastic-steel nail reinforcement structure provided by the present invention increases the structural strength of the cylinder and the compressive strength of the cylinder in the radial direction by providing a reinforcing strip outside the cylinder and providing a second through hole on the reinforcing strip; on the other hand, the lateral movement process of the soil is increased by pouring the soil into the first through hole through the second through hole, thereby increasing the pull-out resistance of the cylinder in the axial direction.

Description

Technical Field

[0001] The invention belongs to the technical field of slope protection, and in particular relates to a plastic-steel nail reinforcement structure. Background Art

[0002] In order to ensure the stability of the river slope system, flexible surface soil nail reinforcement technology is usually used to reinforce the river slope using reinforced concrete nails, wooden nails, bamboo nails, etc. Among them, due to the low strength and easy corrosion of wooden nails and bamboo nails, their application surface is relatively small, and they are easily damaged or fail after a period of use. In addition, the tensile strength of the above structure is weak and often cannot meet the actual tensile resistance requirements. Although reinforced concrete nails have the characteristics of high strength and strong tensile resistance, reinforced concrete nails require a series of construction operations such as drilling, grouting, and reinforcement, which are cumbersome procedures, low construction efficiency, and high construction costs. Moreover, when constructing reinforced concrete nails, it is often necessary to galvanize and round the steel bar head to delay the corrosion of the steel bar, which further complicates the overall process and causes a certain degree of pollution to the environment. In view of this, the use of reinforced concrete nails also has certain limitations. Summary of the invention

[0003] In view of the above defects of the prior art, the present invention provides a plastic-steel nail reinforcement structure to solve the problems of the existing slope protection structure being difficult to construct and weak in tensile strength. The plastic-steel nail reinforcement structure provided by the present invention has a simple overall structure, convenient construction, corrosion resistance and high tensile strength, and can effectively improve the stability of the river slope system.

[0004] To achieve the above-mentioned purpose, the present invention provides a plastic-steel nail reinforcement structure, including a cylinder and an auxiliary punching mechanism; a first through hole is axially opened in the middle of the cylinder, and a plurality of reinforcing strips are arranged at intervals on the outer circumference of the cylinder; the reinforcing strip is arranged axially, and a plurality of second through holes that pass through the first through hole are opened on the reinforcing strip; the auxiliary punching mechanism includes a punching column, the outer diameter of which is not greater than the inner diameter of the first through hole and can be coaxially embedded in the first through hole; and a cap with an outer diameter greater than the inner diameter of the first through hole is coaxially arranged at one end of the punching column, and the length of the punching column is greater than the length of the first through hole, so that when the cap is limitedly abutted against one end of the cylinder, one end of the punching column can pass through the other end of the cylinder.

[0005] As a further improvement of the present invention, the reinforcement strip is integrally formed with the cylinder or fixedly connected to the outer peripheral wall surface of the cylinder.

[0006] As a further improvement of the present invention, the cap and the perforated column are integrally formed or detachably connected.

[0007] As a further improvement of the present invention, the end of the perforated column away from the cap is configured as a cone structure or a frustum structure.

[0008] As a further improvement of the present invention, at least two limiting holes penetrating the first through hole are provided on the outer circumferential wall surface near the end of the cylinder, and limiting strips are provided corresponding to the limiting holes; one end of the limiting strip can be passed through one limiting hole and out of the other limiting hole, and at least one end of the limiting strip extends out of the outer circumferential wall surface of the cylinder.

[0009] As a further improvement of the present invention, the limiting hole is provided on the reinforcing strip and / or on the cylinder wall of the cylinder.

[0010] As a further improvement of the present invention, all or part of the limiting holes are located on the same cross section of the cylinder.

[0011] As a further improvement of the present invention, a groove is formed at the end of the perforating column away from the cap corresponding to the limiting strip, so that the portion of the limiting strip extending into the first through hole can pass through the groove.

[0012] As a further improvement of the present invention, the outer cross-section of the cylinder is polygonal or circular.

[0013] As a further improvement of the present invention, the end of the reinforcement strip is configured as a wedge-shaped structure.

[0014] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0015] In general, the above technical solution conceived by the present invention has the following beneficial effects compared with the prior art:

[0016] (1) The plastic-steel nail reinforcement structure of the present invention utilizes an auxiliary punching mechanism to drive the cylinder to punch holes, which can effectively avoid damage to the cylinder during the punching process. The side wall of the cylinder is thickened by reinforcing strips, so that the second through hole on the side wall of the cylinder has a longer lateral course. After the cylinder is buried in the soil, the first through hole in the cylinder and the second through hole on the side wall of the cylinder are filled with soil, and the soil inside and outside the cylinder is connected as a whole through the second through hole, which greatly increases the pull-out resistance of the cylinder.

[0017] (2) The plastic-steel nail reinforcement structure of the present invention provides a limit hole at one end of the cylinder that is driven into the soil, and a limit strip is inserted into the limit hole. The limit strip is used to break the soil during the process of the cylinder being driven into the soil, so that the soil around the cylinder becomes looser, which facilitates the subsequent soil to enter the cylinder through the second through hole more quickly, and facilitates the cylinder to be quickly fixed after being driven into the soil.

[0018] (3) The plastic-steel nail reinforcement structure of the present invention has a simple structure and is easy to construct. It does not require a post-processing process to reinforce the cylinder. The cylinder can be driven into the soil by applying pressure to the auxiliary punching mechanism. The second through hole can connect the soil inside and outside the cylinder as a whole, thereby increasing the pull-out resistance of the cylinder. At the same time, the groove or notch on the auxiliary punching mechanism ensures that the limit strip will not hinder the insertion and removal of the auxiliary punching mechanism after it is passed through the side wall of the cylinder. After the limit strip is driven into the soil, the surrounding soil will also prevent the cylinder from being pulled out, thereby greatly improving the pull-out resistance of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the cylinder in an embodiment of the present invention;

[0020] Figure 2 is a cross-sectional schematic diagram of the cylinder body when it is driven into the soil in the embodiment of the present invention;

[0021] Figure 3 is a cross-sectional view taken along the AA direction of a plastic-steel nail reinforcement structure in a preferred embodiment of the present invention;

[0022] Figure 4 is an AA sectional view of a plastic-steel nail reinforcement structure in another preferred embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of an end structure of an auxiliary punching mechanism in a preferred embodiment of the present invention;

[0024] Figure 6 It is another schematic diagram of the end structure of the auxiliary punching mechanism in the preferred embodiment of the present invention;

[0025] Figure 7 It is a schematic diagram of the end groove structure of the auxiliary punching mechanism in a preferred embodiment of the present invention;

[0026] Figure 8 It is a schematic diagram of the limit strip structure of the present invention.

[0027] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0028] 1. Cylinder; 2. Auxiliary punching mechanism; 3. Limiting strip;

[0029] 101, first through hole; 102, reinforcement strip; 103, second through hole; 104, limiting hole;

[0030] 201. Perforated column; 202. Cap; 203. Conical structure; 204. Cone structure; 205. Groove. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] Example:

[0037] See also Figures 1 to 8 The plastic-steel nail reinforcement structure in the preferred embodiment of the present invention includes a cylinder 1 and an auxiliary punching mechanism 2, wherein the cylinder 1 is used to drive into the soil and reinforce the surrounding soil; the auxiliary punching mechanism 2 is used to carry the cylinder 1 and drive the cylinder 1 into the soil.

[0038] Specifically, if Figure 1 , 2 As shown, a first through hole 101 is provided in the middle of the cylinder 1 along its axis in the preferred embodiment, and a plurality of reinforcing strips 102 are provided axially on the outer peripheral side wall of the cylinder 1, and a plurality of second through holes 103 that penetrate the cylinder 1 are provided on the reinforcing strips 102. In actual setting, by inserting the auxiliary punching mechanism 2 into the first through hole 101, the end of the auxiliary punching mechanism 2 completes the soil breaking process and drives the cylinder 1 into the soil. At the same time, by providing the reinforcing strips 102 on the outer periphery of the cylinder 1 and providing the second through hole 103 on the reinforcing strips 102, on the one hand, the structural strength of the cylinder 1 is increased, and the compressive resistance of the cylinder 1 in the radial direction is increased; on the other hand, by pouring the soil into the first through hole 101 through the second through hole 103, the lateral movement process of the soil is increased, thereby increasing the axial tensile resistance of the cylinder 1.

[0039] Furthermore, the cylinder 1 is made of hard plastic as a whole. For example, in a preferred embodiment, the cylinder 1 is made of a mixture of polypropylene and polyethylene. The obtained cylinder 1 has both the rigidity of polyethylene and the flexibility and weather resistance of polyethylene, so that the cylinder 1 has good strength and toughness, and has good corrosion resistance relative to reinforced concrete nails, wooden stakes, etc. In actual settings, the first through hole 101 inside the cylinder 1 is a circular through hole. Accordingly, the main structure of the auxiliary punching mechanism 2 is a cylindrical structure. The main structure of the auxiliary punching mechanism 2 can coaxially extend into the first through hole 101 and be assembled with it. Through the above-mentioned structural setting, the wear of the inner wall of the cylinder 1 during the use of the auxiliary punching mechanism 2 can be reduced to a certain extent, and the energy loss during the construction process can be reduced.

[0040] Furthermore, the outer cross section of the cylinder 1 is polygonal or circular. Preferably, the outer cross section of the cylinder 1 is a regular polygonal structure, such as Figure 3As shown in , there are multiple corners on the outer wall of the cylinder 1. Through the above arrangement, the cylinder 1 can be prevented from rotating during use, thereby preventing the cylinder 1 from loosening and increasing the pull-out resistance of the cylinder 1. At the same time, the polygonal arrangement of the cylinder 1 also facilitates the arrangement of the reinforcing strip 102 on its outer wall, so that one side of the reinforcing strip 102 can be closely fitted with the outer wall of the cylinder 1 and fixedly connected. In addition, in a preferred embodiment, the reinforcing strip 102 can be arranged after the cylinder 1 is formed, or it can be integrally formed during the molding process of the cylinder 1.

[0041] Furthermore, a plurality of second through holes 103 penetrating the first through hole 101 are axially provided on the reinforcing strip 102. After the cylinder 1 is driven into the soil, the soil around the cylinder 1 can be gradually poured into the first through hole 101 of the cylinder 1 along the second through holes 103. As the buried time of the cylinder 1 in the soil increases, the soil inside and outside the cylinder 1 gradually accumulates, and the soil in each second through hole 103 gradually connects with the soil inside and outside the cylinder 1 to form a whole. Then, when the cylinder 1 is subjected to an external pulling force, the soil penetrating each second through hole 103 can give the cylinder 1 a downward pulling force to prevent the cylinder 1 from being pulled out. In addition, the provision of the reinforcing strip 102 can increase the radial extension distance of the second through hole 103 in the cylinder 1, so that more soil can be accumulated in the horizontal direction, thereby increasing the pull-out resistance of the cylinder 1. Preferably, both ends of the reinforcing strip 102 are configured as wedge-shaped structures. When one end of the cylinder 1 is driven into the soil, the wedge-shaped structure at the end of the reinforcing strip 102 helps to break the soil.

[0042] like Figure 5 , 6 As shown in Figures 7, the auxiliary punching mechanism 2 in the preferred embodiment is in a "T-shaped" structure, and is preferably made of steel. During the construction process, both ends of the auxiliary punching mechanism 2 will be directly subjected to the impact force of the soil and the pressure device. In order to avoid deformation or rupture of the auxiliary punching mechanism 2 during the process of sending the cylinder 1 into the soil, the auxiliary punching mechanism 2 is made of a material with higher hardness such as steel.

[0043] Specifically, the auxiliary punching mechanism 2 includes a punching column 201 whose outer diameter is not greater than the inner diameter of the first through hole 101, and a cap 202 is provided at one end of the punching column 201 for bearing the impact force of the pressure-applying device and transmitting the pressure to the cylinder 1. The outer diameter of the cap 202 is greater than the inner diameter of the first through hole 101, so that when the punching column 201 coaxially penetrates the first through hole 101, the cap 202 can be limited to the end of the cylinder 1. At the same time, the length of the punching column 201 is greater than the length of the cylinder 1, so that when the cap 202 is limited to the end of the cylinder 1, the other end of the punching column 201 can pass through the first through hole 101, and the end of the punching column 201 away from the cap 202 is set to a cone structure 203 or a frustum structure 204, preferably a cone or a frustum, such as Figure 5 , 6 In the process of driving the cylinder 1 into the soil by using the auxiliary punching mechanism 2, the punching column 201 extends out of one end of the cylinder 1 to break the soil below, reduce the resistance encountered during the driving of the cylinder 1, shorten the time for the cylinder 1 to be driven into the soil, and reduce the wear of the cylinder 1.

[0044] Furthermore, the cap 202 is not set in a unique form, and can be in a disc shape, a polygonal structure, or a form that matches the end of the pressure device. Preferably, the cap 202 and the punching column 201 are set in a detachable form, such as a threaded fit form, so that when the cylinder 1 is driven into different depths according to different pressure devices, the cap 202 can be replaced with a cap 202 structure that matches the pressure device. In addition, the outer periphery of the cap 202 does not protrude from the outer peripheral wall of the cylinder 1, so that when the auxiliary punching mechanism 2 drives the cylinder 1 into the soil, the contact area with the soil will not be increased due to the cap 202, which reduces the resistance encountered during the punching process to a certain extent.

[0045] In order to further improve the pull-out resistance of the cylinder 1, a limiting hole 104 penetrating the first through hole 101 is provided near the end of at least two reinforcing strips 102, and each limiting hole 104 is preferably in the same cross section. Figure 3 , 8 Of course, in actual setting, the position of the limit hole 104 is not limited to being opened on the reinforcing strip 102, and it can also be opened at any position in the annular direction of the cylinder 1 as required, and the two limit holes 104 working in combination can be opened on the side walls of two adjacent cylinders 1, and can also be opened on the corresponding side walls with multiple side walls spaced therebetween.

[0046] In actual setting, one end of the limit strip 3 is inserted into one limit hole 104, and is passed out from another limit hole 104 adjacent in the annular direction, and the two ends of the limit strip 3 are respectively passed out of the outer peripheral wall surface of the cylinder 1. Through the setting of the limit strip 3, in the process of driving the cylinder 1 into the soil, the end of the limit strip 3 can increase the area of ​​the cylinder 1 breaking the soil, avoid the outer wall surface of the cylinder 1 and the soil are completely close to each other, and reduce the viscous resistance of the cylinder 1 breaking the soil. At the same time, after loosening the soil around the cylinder 1, the limit strip 3 can not only facilitate the cylinder 1 to be driven into the soil, but also promote the soil around the cylinder 1 to flow into the inside of the cylinder 1 through the second through hole 103 faster, so as to facilitate the connection of the soil inside and outside the cylinder 1 as a whole, and increase the pull-out resistance of the cylinder 1.

[0047] Furthermore, if Figure 3As shown, in order to avoid interference of the limiting strip 3 with the auxiliary punching mechanism 2 after the setting, a groove 205 is opened on one side of the end of the punching column 201, so that the end of the punching column 201 can pass through the first through hole 101 without interfering with the setting of the limiting strip 3, that is, the limiting strip 3 passes through the groove 205.

[0048] In another preferred embodiment, in order to facilitate the insertion of the limit strip 3 on the cylinder 1, the reinforcement strip 102 can be set on the two outer peripheral walls of the cylinder 1 that are away from each other, and corresponding limit holes 104 can be coaxially opened on the two reinforcement strips 102, so that the limit strip 3 can coaxially pass through the two limit holes 104 in a straight state. Correspondingly, a groove 205 is axially opened in the middle of the end of the punching column 201, so that the limit strip 3 can pass through the groove 205 when the punching column 201 works in matching with the cylinder 1, so as to avoid the interference and influence of the punching column 201 on the limit strip 3. Of course, the two coaxially set limit holes 104 can also be opened with one on the reinforcement strip 102 and the other directly on the wall surface of the cylinder 1, such as Figure 4 In short, the opening of the upper limit hole 104 of the cylinder 1 can be adjusted according to the end structure of the perforated column 201 and the structural form of the limit strip 3, as long as the actual construction requirements are met.

[0049] After the limit strip 3 is driven into the soil along with the cylinder 1 and the auxiliary punching mechanism is pulled out, as the soil in the first through hole 101 continues to settle, the soil around the limit strip 3 is gradually filled up, thereby realizing the limiting setting of the limit strip 3. When the cylinder 1 is subjected to an external pulling force, the limit strip 3 will prevent the cylinder 1 from being pulled out of the soil under the action of the surrounding soil, thereby greatly improving the tensile strength of the cylinder 1.

[0050] The working process of the present invention is as follows: when it is necessary to drive the cylinder 1 into the soil, the auxiliary punching mechanism 2 is sleeved on the cylinder 1 along the first through hole 101, the cap 202 of the auxiliary punching mechanism 2 abuts against one end of the cylinder 1, and the limiting strip 3 is inserted into the limiting hole 104 at the end of the cylinder 1 away from the cap 202. The cap 202 is impacted by a pressure device, and the entire cylinder 1 and the auxiliary punching mechanism 2 structure are extended downward into the soil, and the punching column 201 continuously breaks the soil at the end away from the cap 202. After the cylinder 1 is driven into the set position, the auxiliary punching mechanism 2 is pulled out. After the auxiliary punching mechanism 2 is pulled out, the soil around the cylinder 1 is gradually poured into the first through hole 101 of the cylinder 1 through the second through hole 103 to form a stable structure.

[0051] The plastic-steel nail reinforcement structure of the present invention has a relatively simple overall structure and a convenient construction process. After the cylinder 1 is driven into the soil, it can effectively increase the connectivity of the soil inside and outside the cylinder 1, so that the plastic-steel nail reinforcement structure has good anti-pullout performance.

[0052] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic-steel nail reinforcement structure, characterized in that: It includes a barrel and an auxiliary punching mechanism; A first through hole is axially provided in the middle of the cylinder, and a plurality of reinforcing strips are arranged at intervals on the outer circumference of the cylinder; the reinforcing strip is axially provided, and a plurality of second through holes penetrating the first through hole are provided on the reinforcing strip; at least two limiting holes penetrating the first through hole are provided on the outer circumferential wall surface close to the end of the cylinder, and limiting strips are provided corresponding to the limiting holes; one end of the limiting strip passes through one limiting hole and passes through the other limiting hole, and at least one end of the limiting strip extends out of the outer circumferential wall surface of the cylinder; The auxiliary punching mechanism comprises a punching column, the outer diameter of which is not greater than the inner diameter of the first through hole and can be coaxially embedded in the first through hole; and a cap having an outer diameter greater than the inner diameter of the first through hole is coaxially arranged at one end of the punching column; and the length of the punching column is greater than the length of the first through hole, so that when the cap is limitedly abutted against one end of the cylinder, one end of the punching column can pass through the other end of the cylinder; at the same time, a groove is provided at the end of the punching column away from the cap corresponding to the limit strip, so that the part of the limit strip extending into the first through hole passes through the groove; The punching column extends into the first through hole and abuts one end of the cylinder with a cap limiter, and the cap is impacted by a pressure device. The entire cylinder and the auxiliary punching mechanism structure extend downward into the soil, and the end of the punching column away from the cap continuously breaks the soil. After the cylinder is driven into the set position, the auxiliary punching mechanism is pulled out, and after the auxiliary punching mechanism is pulled out, the soil around the cylinder is gradually poured into the first through hole through the second through hole to form a stable structure.

2. The plastic-steel nail reinforcement structure according to claim 1, characterized in that: The reinforcing strip is integrally formed with the cylinder or fixedly connected to the outer peripheral wall surface of the cylinder.

3. The plastic-steel nail reinforcement structure according to claim 1, characterized in that: The cap is integrally formed with the perforated column or is detachably connected thereto.

4. The plastic-steel nail reinforcement structure according to claim 1, characterized in that: The end of the perforated column away from the cap is configured as a cone structure or a frustum structure.

5. The plastic-steel nail reinforcement structure according to claim 1, characterized in that: The limiting holes are arranged on the reinforcing strip and / or on the cylinder wall of the cylinder.

6. The plastic-steel nail reinforcement structure according to claim 1, characterized in that: All or part of the limiting holes are located on the same cross section of the cylinder.

7. The plastic-steel nail reinforcement structure according to claim 1, characterized in that: The outer cross section of the cylinder is polygonal or circular.

8. The plastic-steel nail reinforcement structure according to claim 1, characterized in that: The end of the reinforcement strip is configured as a wedge-shaped structure.

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