Protective shell and outer anchor head anchor sealing structure

Abstract

The utility model provides a protective shell and an outer anchor head anchor sealing structure, the protective shell is used for protecting anchor sealing concrete, and the anchor sealing concrete seals an outer anchor head on an anchored retaining wall; the contour of an inner cavity of the protective shell is larger than the outer contour of the anchor sealing concrete so that the protective shell can cover the anchor sealing concrete. The contour of the inner cavity of the protective shell is larger than the outer contour of the anchor sealing concrete, and the protective shell can cover the anchor sealing concrete, so that the anchor sealing concrete can be protected, the anchor sealing concrete is prevented from being directly exposed in the external environment, and the anchor sealing concrete is prevented from being cracked, damaged and even falling off under the action of wind blowing, solarization and rain for a long time. Therefore, the problem that the anchor sealing concrete is easy to crack, damage and even fall off after being used for a long time can be solved, and potential safety hazards are effectively eliminated.

Description

Technical Field

[0001] This application relates to the technical field of slope support engineering, and particularly relates to a protective shell and an external anchor head sealing structure. Background Art

[0002] The slope anchorage support technology is a civil engineering technology that reinforces a slope by passing anchor rods through the potential sliding surface of the rock and soil mass and anchoring them in the deep and stable rock and soil layers, thereby ensuring the stability of the slope.

[0003] In slope anchorage support, the anchored retaining wall and the anchor rod are the main load-bearing structures. The anchor rod is used in combination with the anchored retaining wall, that is, one end of the anchor rod is anchored in the stable rock or soil layer deep in the mountain slope, and the other end is connected to the anchored retaining wall, which can ensure the stability of the slope.

[0004] Currently, in order to prevent the external anchor head of the anchor rod from rusting, the external anchor head is usually sealed with concrete. The sealed external anchor head is wrapped in the sealing concrete. However, the sealing concrete is prone to cracking, damage, and even falling off after long-term use, posing serious safety hazards. Utility Model Content

[0005] This application provides a protective shell and an external anchor head sealing structure, which can solve the problems that the sealing concrete is prone to cracking, damage, and even falling off after long-term use, and effectively eliminate safety hazards.

[0006] In a first aspect, this application provides a protective shell for protecting the sealing concrete, and the sealing concrete seals the external anchor head on the anchored retaining wall;

[0007] The inner cavity contour of the protective shell is larger than the outer contour of the sealing concrete, so that the protective shell can cover the sealing concrete.

[0008] The protective shell provided by the embodiment of this application has an inner cavity contour larger than the outer contour of the sealing concrete, and can cover the sealing concrete, thereby protecting the sealing concrete, preventing the sealing concrete from being directly exposed to the external environment, and avoiding the sealing concrete from cracking, being damaged, or even falling off under the action of wind, sun, and rain for a long time. It can be seen that this application can solve the problems that the sealing concrete is prone to cracking, damage, and even falling off after long-term use, and effectively eliminate safety hazards.

[0009] In combination with the first aspect, in some possible implementation manners, a plurality of bending portions are provided at the edge of the protective shell, and each bending portion can be fixedly connected to the anchored retaining wall through a plurality of fasteners.

[0010] In the embodiment of this application, the protective shell can be conveniently fixed on the anchored retaining wall through the bending portions.

[0011] Combined with the first aspect and the above implementation manners, in order to adapt to the complex construction site environment and ensure the reliable connection between the protective shell and the anchored retaining wall, in some possible implementation manners, at least two of the plurality of bending portions are oppositely arranged.

[0012] Combined with the first aspect and the above implementation manners, in some possible implementation manners, a plurality of water permeable holes are formed in a part of the shell of the protective shell located below the outer anchor head.

[0013] By providing the water permeable holes in the embodiments of the present application, it is possible to prevent rainwater or condensate accumulated on the anchor sealing structure of the outer anchor head from accumulating in the anchor sealing concrete, and reduce the probability of the anchor sealing concrete being pulverized, expanded and cracked.

[0014] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the protective shell is a stainless steel member, and / or, a paint baking layer is provided on the outer surface of the protective shell.

[0015] Considering the structural strength and durability of the protective shell, the protective shell can be made of a stainless steel member with high strength and corrosion resistance. In addition, in order to improve the aesthetic appearance of the project, a paint baking layer can also be provided on the outer surface of the protective shell. In addition, the paint baking layer can also improve the hardness and corrosion resistance of the protective shell, and extend the service life of the protective shell.

[0016] In a second aspect, the present application also provides an outer anchor head sealing structure, including:

[0017] Anchor sealing concrete, the anchor sealing concrete closing the outer anchor head exposed from the anchored retaining wall; and

[0018] The protective shell according to any one of the above first aspects, the protective shell covering the anchor sealing concrete.

[0019] For the outer anchor head sealing structure provided by the embodiments of the present application, the inner cavity contour of the protective shell is larger than the outer contour of the anchor sealing concrete, and can cover the anchor sealing concrete, so as to protect the anchor sealing concrete, prevent the anchor sealing concrete from being directly exposed to the external environment, and avoid the anchor sealing concrete from cracking, breaking or even falling off under the action of wind, sun and rain for a long time.

[0020] Combined with the second aspect, in some possible implementation manners, a high penetration crystalline waterproof coating is applied to the surface of the anchor sealing concrete to fill the cracks on the anchor sealing concrete and / or block the holes on the anchor sealing concrete.

[0021] By applying the high penetration crystalline waterproof coating to the surface of the anchor sealing concrete in the embodiments of the present application, it is not only possible to prevent the anchor sealing concrete from cracking and breaking, but also possible to repair the anchor sealing concrete that has cracked and broken after long-term use.

[0022] Combined with the second aspect and the above implementation manners, in some possible implementation manners, the gap between the protective shell and the sealed anchor concrete is filled with a filler.

[0023] In the embodiments of the present application, the filler can tightly combine the protective shell and the sealed anchor concrete, thereby eliminating the cavity between the protective shell and the sealed anchor concrete, and avoiding the entry of external airflows (such as strong winds) into the cavity to generate abnormal noises, whistles and other noises, which affect the lives of residents around the slope.

[0024] Combined with the second aspect and the above implementation manners, in some possible implementation manners, the edge of the protective shell is closely attached to the anchored retaining wall, and a seal is provided between the edge of the protective shell and the anchored retaining wall.

[0025] In the embodiments of the present application, the seal can seal the gap between the protective shell and the anchored retaining wall, effectively preventing moisture from entering the protective shell.

[0026] Combined with the second aspect and the above implementation manners, in some possible implementation manners, the seal is a sealing strip provided between the edge of the protective shell and the anchored retaining wall, or

[0027] the seal is a waterproof coating applied at the junction of the edge of the protective shell and the anchored retaining wall. Description of the Drawings

[0028] By reading the following detailed description of the embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the embodiments and are not considered as a limitation to the present application. Moreover, in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0029] Figure 1 is the front view of an external anchor head sealed anchor structure of the present application provided on an anchored retaining wall;

[0030] Figure 2 is Figure 1 the sectional structure schematic diagram along the line A-A in

[0031] Figure 3 is Figure 2 the enlarged structure schematic diagram along the partial Ⅰ in

[0032] The descriptions of the reference numerals in the drawings are as follows:

[0033] 100—anchor rod; 101—external anchor head;

[0034] 110—anchored retaining wall; 120—fastener; 130—bearing plate;

[0035] 200—External anchor head sealing structure;

[0036] 210—Protective shell; 211—Bending part; 212—Fastener; 213—Water permeable hole;

[0037] 220—Anchoring concrete;

[0038] 230—Filling material;

[0039] 240—Seal. Specific implementation manner

[0040] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, so they are only examples and cannot be used to limit the protection scope of the present application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0042] Referring to "embodiment" herein means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0043] In the description of the embodiments of this application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0044] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order, or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the term "plurality" means two or more (including two). Similarly, "multiple groups" means two or more groups (including two groups), and "multiple pieces" means two or more pieces (including two pieces).

[0045] In the description of the embodiments of the present application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0046] The slope anchorage support technology is a civil engineering technology that reinforces the slope by passing anchor rods through the potential sliding surface of the soil mass and anchoring them in the deep and stable rock and soil layers, thereby ensuring the stability of the slope.

[0047] In slope anchorage support, the anchored retaining wall and the anchor rod are the main load-bearing structures. The anchor rod is used in combination with the anchored retaining wall, that is, one end of the anchor rod is anchored in the stable rock layer or soil layer deep in the mountain slope, and the other end is connected to the anchored retaining wall, which can ensure the stability of the slope.

[0048] Currently, in order to prevent the external anchor head of the anchor rod from rusting, the external anchor head is usually sealed by means of concrete enclosure. The external anchor head after the sealing treatment is wrapped in the sealing concrete. However, affected by construction quality and environmental conditions, etc., the sealing concrete is prone to diseases such as cracking and hollowing after long-term use. These diseases greatly affect the protective effect of the sealing concrete on the external anchor head, may cause the anchor rod to rust faster, affect the durability of the project, and threaten the safety of the project. At the same time, with the further development of diseases such as cracking and hollowing, the sealing concrete will fall off, seriously threatening the life and property safety of others.

[0049] To solve the above technical problems, the embodiments of the present application provide a protective shell and an external anchor head sealing structure, which can solve the problems that the sealing concrete is prone to cracking, damage, and even falling off after long-term use, and effectively eliminate potential safety hazards.

[0050] The protective shell and the external anchor head sealing structure provided by the embodiments of the present application will be introduced in detail below with reference to the accompanying drawings of the specification.

[0051] See Figure 3 , in slope anchorage support, one end ( Figure 3 the right end in Figure 3The left end of the middle part is connected to the anchored retaining wall 110. Among them, the part of the anchor rod 100 exposed outside the anchored retaining wall 110 is called the external anchor head 101. As Figure 3 shown, a bearing plate 130 is sleeved on the external anchor head 101 of the anchored retaining wall 110, and connection structures such as external threads are provided on the outer periphery of the external anchor head 101. A pre-tightening force is applied to the anchor rod 100 by connecting a fastener 120 to the external anchor head 101. Among them, the anchored retaining wall 110 can be a concrete column. The anchor rod 100 is usually made of steel bars or steel strips. Since steel bars are low in cost and convenient to obtain, they are more widely used. The bearing plate 130 is usually a disc-shaped steel plate with a central hole, and the fastener 120 is usually a fastening nut.

[0052] An embodiment of the present application provides an external anchor head sealing structure 200 for protecting the external anchor head 101 of the anchor rod 100 and preventing the external anchor head 101 from rusting and failing.

[0053] See Figure 1 and Figure 2 As shown in, the external anchor head sealing structure 200 includes sealing concrete 220 and a protective shell 210. The sealing concrete 220 seals the external anchor head 101 exposed outside the anchored retaining wall 110; the protective shell 210 is used to protect the sealing concrete 220. The inner cavity contour of the protective shell 210 is larger than the outer contour of the sealing concrete 220, and the protective shell 210 can cover the sealing concrete 220.

[0054] Among them, the shape of the sealing concrete 220 can be flexibly set according to the forming difficulty and appearance aesthetics. For example, in order to facilitate the forming of the sealing concrete 220, it is usually made into a cuboid structure, and in order to improve the appearance aesthetics, the sealing concrete 220 can also be made into a hemispherical shape. The specific shape of the protective shell 210 can be flexibly determined according to the outer contour shape of the sealing concrete 220. For example, for the cuboid-shaped sealing concrete 220, the protective shell 210 can be a cuboid accordingly. Similarly, for the sealing concrete 220 similar to a hemisphere, the protective shell 210 can be a hemispherical shape accordingly.

[0055] Considering the structural strength and durability of the protective shell 210, the protective shell 210 can be made of a stainless steel part with high strength and corrosion resistance. For example, 304 stainless steel or 316 stainless steel can be selected for processing and manufacturing. In addition, in order to improve the appearance aesthetics of the project, a paint layer can also be provided on the outer surface of the protective shell 210. The paint layer can be a paint layer formed by polyester amino paint, and the thickness can be 20-35 μm. In addition, the paint layer can also improve the hardness and corrosion resistance of the protective shell 210 and extend the service life of the protective shell 210.

[0056] In the solution provided by the embodiment of the present application, the inner cavity contour of the protective shell 210 is larger than the outer contour of the sealed anchor concrete 220, and it can cover the sealed anchor concrete 220, thereby protecting the sealed anchor concrete 220 and preventing it from being directly exposed to the external environment, avoiding cracking, damage or even peeling of the sealed anchor concrete 220 under the action of wind, sun and rain for a long time. It can be seen that the present application can solve the problem that the sealed anchor concrete 220 is prone to cracking, damage or even peeling after long-term use, and effectively eliminate potential safety hazards.

[0057] The solution provided by the embodiment of the present application can not only be applied to new slope anchorage support projects to form the outer anchor head sealing structure 200, but also repair and transform the sealed anchor concrete 220 that has been built and used for a long time, and combine with the original sealed anchor concrete 220 to form a new outer anchor head sealing structure 200.

[0058] In order to facilitate the fixation of the protective shell 210 on the anchored retaining wall 110, in some embodiments, a plurality of bending portions 211 are provided at the edge of the protective shell 210, and each bending portion 211 can be fixedly connected to the anchored retaining wall 110 through a plurality of fasteners 212. Among them, the fasteners 212 can use expansion bolts. The number of fasteners 212 can be flexibly determined according to actual needs. For example, it can be four, six, eight, ten, etc. On the basis of ensuring the firm connection between the protective shell 210 and the anchored retaining wall 110, considering reducing construction procedures and improving construction efficiency, the number of fasteners 212 is as small as possible, usually four, six, etc.

[0059] Since the construction site of the sealed anchor concrete 220 is relatively complex, the bending portions 211 need to be flexibly set according to the actual situation on site. In some embodiments, at least two of the plurality of bending portions 211 are arranged oppositely. In this way, the reliable connection between the protective shell 210 and the anchored retaining wall 110 can be ensured. For example, for Figure 1 the shown outer anchor head sealing structure 200, since the structural dimensions of the anchored retaining walls 110 on both sides of the sealed anchor concrete 220, that is, the concrete columns, are small, only one bending portion 211 is provided on each of the upper and lower sides of the protective shell 210 corresponding to the sealed anchor concrete 220. Of course, if the space of the anchored retaining walls 110 on the upper and lower sides of the sealed anchor concrete 220 is small, only one bending portion 211 can be provided on each of the left and right sides of the protective shell 210 corresponding to the sealed anchor concrete 220. It can be understood that when the space is relatively abundant, a bending portion 211 is preferably provided around the protective shell 210, so as to fully ensure the connection firmness between the protective shell 210 and the anchored retaining wall 110.

[0060] In some embodiments, the gap between the protective shell 210 and the sealed anchor concrete 220 is filled with a filler 230. The filler 230 can be selected according to construction requirements. Considering construction convenience, the filler 230 is preferably a foaming agent. The filler 230 can tightly bond the protective shell 210 and the sealed anchor concrete 220, thereby eliminating the cavity between the protective shell 210 and the sealed anchor concrete 220, improving the connection tightness between the protective shell 210 and the sealed anchor concrete 220, and also avoiding the entry of external airflows (such as strong winds) into the cavity to generate abnormal noises, whistling and other noises, which may affect the lives of residents around the slope.

[0061] In order to prevent moisture from entering the protective shell 210 through the gap between the protective shell 210 and the anchored retaining wall 110 and corroding the sealed anchor concrete 220, in some embodiments, the edge of the protective shell 210 is closely attached to the anchored retaining wall 110, and a seal 240 is provided between the edge of the protective shell 210 and the anchored retaining wall 110. The seal 240 can seal the gap between the protective shell 210 and the anchored retaining wall 110, effectively preventing moisture from entering the protective shell 210.

[0062] The structure and form of the seal 240 can be various. In some embodiments, the seal 240 can be a sealing strip, and in other embodiments, the seal 240 can also be a waterproof coating. When the seal 240 is a sealing strip, it can be provided between the edge of the protective shell 210 and the anchored retaining wall 110; when the seal 240 is a waterproof coating, it can be coated at the junction between the edge of the protective shell 210 and the anchored retaining wall 110. There are various types of sealing strips, including vulcanized rubber sealing strips, silicone rubber sealing strips, neoprene rubber sealing strips, etc., and designers can flexibly select according to actual needs. There are also many types of waterproof coatings, and designers can select according to cost and construction convenience.

[0063] Considering that rainwater or condensate condensed on the external anchor head sealing structure 200 may accumulate in the sealed anchor concrete 220, exacerbating the pulverization, expansion and cracking of the sealed anchor concrete 220, in some embodiments, a plurality of water permeable holes 213 are provided in the partial shell of the protective shell 210 located below the external anchor head 101. In this way, the moisture in the sealed anchor concrete 220 can be discharged from the water permeable holes 213 under the action of gravity. The number and pore size of the water permeable holes 213 can be set according to actual needs, and the embodiments of the present application do not make specific limitations in this regard.

[0064] To prevent the anchoring concrete 220 from cracking and damage, or to repair the anchoring concrete 220 that has cracked and damaged after long-term use, in some embodiments, a high-penetration crystalline waterproof coating is applied to the surface of the anchoring concrete 220, which can fill the cracks on the anchoring concrete 220 and / or plug the holes on the anchoring concrete 220. The high-penetration crystalline waterproof coating, also known as cementitious penetrating crystalline waterproof coating, after reacting with water, the active chemical substances contained in the material penetrate into the concrete interior through the carrier water, forming water-insoluble crystals in the concrete, blocking the capillary channels, thereby making the concrete dense and waterproof.

[0065] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A protective shell (210) for protecting the sealed anchor concrete (220), wherein the sealed anchor concrete (220) seals the external anchor head (101) on the anchored retaining wall (110); characterized in that: The inner cavity contour of the protective shell (210) is larger than the outer contour of the sealed anchor concrete (220), so that the protective shell (210) can cover the sealed anchor concrete (220).

2. The protective shell (210) according to claim 1, wherein The edge of the protective shell (210) is provided with a plurality of bending parts (211), and each bending part (211) can be fixedly connected with the anchored retaining wall (110) through a plurality of fasteners (212).

3. The protective shell (210) according to claim 2, characterized in that, At least two of the plurality of bending parts (211) are arranged oppositely.

4. The protective case (210) according to claim 1, wherein, A plurality of water permeable holes (213) are formed in the partial shell of the protective shell (210) located on the lower side of the external anchor head (101).

5. The protective case (210) according to claim 1, characterized in that, The protective shell (210) is made of stainless steel, and / or a baking paint layer is provided on the outer surface of the protective shell (210).

6. An external anchor head sealing and anchoring structure (200), characterized in that, Comprising: Sealed anchor concrete (220), the sealed anchor concrete (220) seals the external anchor head (101) exposed from the anchored retaining wall (110); And The protective shell (210) according to any one of claims 1 to 5, the protective shell (210) covers the sealed anchor concrete (220).

7. The external anchor head sealing and anchoring structure (200) according to claim 6, characterized in that, The surface of the sealed anchor concrete (220) is coated with a high - permeability crystalline waterproof coating to fill the cracks in the sealed anchor concrete (220) and / or block the holes in the sealed anchor concrete (220).

8. The external anchor head sealing structure (200) according to claim 6, characterized in that, The gap between the protective shell (210) and the sealed anchor concrete (220) is filled with a filler (230).

9. The external anchor head sealing structure (200) according to claim 6, characterized in that, The edge of the protective shell (210) is in close fit with the anchored retaining wall (110), and a seal (240) is provided between the edge of the protective shell (210) and the anchored retaining wall (110).

10. The external anchor head sealing structure (200) according to claim 9, characterized in that, The seal (240) is a sealing rubber strip arranged between the edge of the protective shell (210) and the anchored retaining wall (110), or The seal (240) is a waterproof coating applied at the junction of the edge of the protective shell (210) and the anchored retaining wall (110).

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