CN210797552U

CN210797552U - Anti-floating anchor rod structure

Info

Publication number: CN210797552U
Application number: CN201921178802.6U
Authority: CN
Inventors: 陈建平; 黄言君
Original assignee: Jiangsu Maosheng Construction Group Co ltd
Current assignee: Jiangsu Maosheng Construction Group Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-06-19
Anticipated expiration: 2029-07-24

Abstract

The utility model relates to an anti-floating anchor rod structure, which comprises a foundation, a through hole arranged in the foundation, an anchor rod positioned in the through hole and a cement layer, wherein the cement layer is positioned around the anchor rod, a waterproof part is arranged in the cement layer, the waterproof part comprises an anti-seepage groove arranged at the top of the cement layer, anti-seepage cement is laid in the anti-seepage groove, and a water stop steel plate is arranged above the anti-seepage cement; the top of the water stop steel plate extends to the upper part of the anti-seepage groove, the edge of the water stop steel plate protrudes towards the periphery, a water stop strip is laid between the water stop steel plate and the foundation, and the water stop strip is abutted to the water stop steel plate; install waterproofing membrane between stagnant water steel sheet inboard and the stock, waterproofing membrane both sides carry out the butt with stagnant water steel sheet and stock respectively. The utility model discloses have better water-proof effects to the stock node.

Description

Anti-floating anchor rod structure

Technical Field

The utility model belongs to the technical field of the technique of building anti-floating construction and specifically relates to an anti-floating anchor rod structure is related to.

Background

At present, an anti-floating anchor rod is a structural member which is arranged for resisting upward displacement of a building on the anti-floating anchor rod in an underground structure of a building engineering, is related to the height and the change condition of an underground water level, and is opposite to the stress direction of a compression-resistant pile. The anti-floating anchor rod is different from a common foundation pile, has unique performance, and is the biggest difference from the common foundation pile: the anti-floating pile bears the pulling force for the anti-pulling pile body, the stress of the common anti-floating pile is also transferred from the pile top to the pile bottom, and the stress of the pile body is changed along with the change of the underground water level. During construction, a down-the-hole drill is generally used for forming holes in foundation rocks, and the anti-floating anchor rods are arranged to connect the structure or the structure foundation and the foundation rocks into a whole to work together as a part of the foundation or the upper structure, so that the foundation can effectively resist the buoyancy of underground water.

The prior art is an anti-floating anchor rod provided by patent application document with publication number CN208395870U, which comprises an anchor rod and an anchor rod pile wrapping the anchor rod, wherein the anchor rod pile is a concrete pile with strength at least reaching C25, and comprises a pile main body and an enlarged head connected to the bottom of the pile main body; the enlarged head and the pile main body are coaxially arranged and integrally formed, and the diameter of the enlarged head is larger than that of the pile main body. Because the anchor rod pile of the utility model is a concrete pile, the anchor rod pile comprises a pile main body and an expansion head connected with the bottom of the pile main body, and the diameter of the expansion head is larger than that of the pile main body; has better anti-floating capability.

The above prior art solutions have the following drawbacks: because anti-floating anchor rod generally can set up longer, often have the connected node of stock and ground on the route of stock, the seepage problem of stock department can appear when the water repellent of connected node is not good, influences building structure's stability.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an anti-floating anchor rod structure can promote the water-proof effects of stock connected node department.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an anti-floating anchor rod structure comprises a foundation, a through hole arranged in the foundation, an anchor rod and a cement layer, wherein the anchor rod and the cement layer are arranged in the through hole; the top of the water stop steel plate extends to the upper part of the anti-seepage groove, the edge of the water stop steel plate protrudes towards the periphery, a water stop strip is laid between the water stop steel plate and the foundation, and the water stop strip is abutted to the water stop steel plate; install waterproofing membrane between stagnant water steel sheet inboard and the stock, waterproofing membrane both sides carry out the butt with stagnant water steel sheet and stock respectively.

By adopting the technical scheme, the structure of the anti-seepage groove is increased, the anti-seepage cement is laid, and the anti-seepage effect is achieved on the top of the cement layer; the structures of the waterproof steel plate and the waterproof coiled material are added, the anti-seepage treatment is carried out on the joint of the anchor rod and the anti-seepage cement, and water flow is not easy to seep out along the side wall of the anchor rod; the structure of the bulge at the top of the water stop steel plate and the water stop strip is increased, the junction of the water stop steel plate and the water stop groove is prevented from seepage, and water flow is not easy to seep along the inner wall of the water stop groove, so that the structure is adopted, and the connection node of the anchor rod has a better waterproof effect.

The utility model discloses further set up to: the anchor rod comprises a reinforcement cage and concrete, wherein the reinforcement cage comprises fixed reinforcements, a plurality of anchoring reinforcements positioned around the fixed reinforcements, and reinforcement rings positioned on the outer layers of the anchoring reinforcements; concrete is arranged on the inner side and the outer side of the reinforcement cage.

By adopting the technical scheme, the anchor rod structure is made of concrete and a reinforcement cage, and has higher structural strength compared with an anchor rod formed by wrapping reinforcement with common grouting cement; when resisting buoyancy, during buoyancy transmitted the concrete to the cement layer and finally transmitted the soil layer from the steel reinforcement cage, played stock structure's anti buoyancy performance, had better anti floating effect.

The utility model discloses further set up to: the periphery of the steel reinforcement cage is provided with inclined connecting ribs which are arranged in an inclined manner, and the inclined direction is upward inclined from the center to the periphery; the connecting ribs are positioned in the cement layer.

Through adopting above-mentioned technical scheme, increased the structure of splice bar, the splice bar that the slope set up has increased the connection area between stock and the cement layer, has strengthened the connection between stock and the cement layer, has promoted the anti floating ability of stock.

The utility model discloses further set up to: the fixed steel bars and the anchoring bars are welded, and the anchoring bars are arranged at four positions around the fixed steel bars.

Through adopting above-mentioned technical scheme, used four places anchor muscle to fix around fixed reinforcing bar, the structure of steel reinforcement cage is comparatively stable in the stock.

The utility model discloses further set up to: be provided with the waterproof board on the stock, the waterproof board is located cement layer top and waterproof board all around with the through-hole inner wall butt.

By adopting the technical scheme, the structure of the waterproof board is increased, partial water flow in the cement layer can be prevented from seeping, the waterproof board is positioned at the top of the cement layer, impermeable cement is paved above the waterproof board, and the waterproof board is positioned between the cement layer and the impermeable cement, so that the two types of cement are not easy to mix.

The utility model discloses further set up to: the periphery of the waterproof board is provided with inclined planes, and the inclined planes incline upwards from the center to the periphery.

Through adopting above-mentioned technical scheme, increased the waterproof board inclined plane all around, be convenient for send the waterproof board into the through-hole when using, it is comparatively convenient to be under construction.

The utility model discloses further set up to: the bottom of the water stop steel plate is provided with a connecting rod, the connecting rod is positioned in the seepage-proofing cement, the bottom of the connecting rod is provided with a tapered insertion end, the insertion end comprises a tip part and a tail part, and the plane area of the tail part is larger than the section area of the connecting rod.

Through adopting above-mentioned technical scheme, use the structure of connecting rod and set up the insertion end of connecting rod tip in prevention of seepage cement, the insertion end plays better fixed effect to the stagnant water steel sheet, is difficult for appearing the phenomenon of perk, has strengthened the structural stability of stagnant water steel sheet.

The utility model discloses further set up to: the connecting rods are arranged at four positions at the bottom of the water stop steel plate and distributed in a circular array around the anchor rod.

Through adopting above-mentioned technical scheme, set up a plurality of connecting rods and set up the connecting rod into circular array, stagnant water steel sheet and prevention of seepage cement's connection is more stable.

To sum up, the utility model discloses a beneficial technological effect does:

1. the structures of the water stop steel plate, the anti-seepage cement, the water stop strip and the waterproof coiled material are added, the anti-seepage effect at the joint of the anchor rod is improved, the whole structure is more stable, and the anti-floating anchor rod is convenient to use for a long time;

2. the anchor rod is formed by the structure of matching the reinforcement cage with the concrete, the anchor rod has higher structural strength, the structure of the connecting rib is increased, the anti-floating capacity of the anchor rod is improved, the structural stability is higher, and the long-term work of a waterproof piece is facilitated;

3. the connecting rod of stagnant water steel sheet bottom and the structure of inserting the end have been increased, have promoted the structural stability of stagnant water steel sheet, have reduced the influence to the stagnant water steel sheet when sealing rod expands simultaneously.

Drawings

FIG. 1 is a schematic sectional view of the main structure of the present invention;

FIG. 2 is an enlarged schematic view of portion A1 of FIG. 1;

fig. 3 is a schematic cross-sectional view of the anchor rod structure of the present invention.

Reference numerals: 1. a foundation; 11. a through hole; 2. an anchor rod; 21. a reinforcement cage; 211. fixing the steel bars; 212. anchoring ribs; 213. a reinforcing bar ring; 22. concrete; 3. a cement layer; 4. connecting ribs; 5. seepage-proofing cement; 51. waterproof coiled materials; 52. a waterproof sheet; 6. a water stop steel plate; 61. a connecting rod; 62. an insertion end; 7. a water stop strip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an anti-floating anchor rod structure, including ground 1, set up through-hole 11 in ground 1 and install stock 2 and the cement layer 3 in through-hole 11, cement layer 3 is located around stock 2. An anti-seepage groove is formed at the top of the through hole 11 and is also positioned at the top of the cement layer 3.

Referring to fig. 1 and 2, a waterproof plate 52 is fixedly connected to the outer side of the anchor rod 2, the waterproof plate 52 is positioned on the top of the cement layer 3 and between the cement layer 3 and the bottom of the impermeable trough, and the waterproof plate 52 separates the cement layer 3 from the impermeable trough. In order to facilitate the matching between the waterproof plate 52 and the through hole 11, an inclined plane is formed around the bottom of the waterproof plate 52, the inclined direction of the inclined plane is upwards inclined from the center to the periphery, and the edge of the waterproof plate 52 is abutted against the inner wall of the through hole 11 after the waterproof plate is installed.

Referring to fig. 1 and 2, a layer of seepage-proofing cement 5 is laid in the seepage-proofing groove, a water-stopping steel plate 6 is mounted on the outer side of the anchor rod 2, the bottom of the water-stopping steel plate 6 is abutted to the seepage-proofing cement 5, a waterproof coiled material 51 is sleeved on the outer side of the anchor rod 2, the waterproof coiled material 51 is positioned between the anchor rod 2 and the water-stopping steel plate 6, and the inner side and the outer side of the waterproof coiled material 51 are respectively abutted to the. The anti-seepage effect on the side wall of the anchor rod 2 is achieved. Waterproof steel sheet top edge is protruding to all around, has laid one deck sealing rod 7 between waterproof steel sheet top and ground 1 surface, and sealing rod 7 is located between waterproof steel sheet top edge and the ground 1 and both sides carry out the butt with waterproof steel sheet and ground 1 respectively, and sealing rod 7 has played the water-proof effects to prevention of seepage groove edge.

Referring to fig. 1 and 2, a connecting rod 61 is fixedly connected to the bottom of the water stop steel plate 6, the connecting rod 61 is inserted into the impermeable cement 5, a tapered insertion end 62 is connected to the bottom of the connecting rod 61, the insertion end 62 comprises a tip portion and a tail portion, the tip portion is arranged downwards, and the tail portion plane area of the insertion end 62 is larger than the section area of the connecting rod 61. The structure of using connecting rod 61 can strengthen the connection before stagnant water steel sheet 6 and prevention of seepage cement 5, and the installation of stagnant water steel sheet 6 is more stable, and the influence that causes stagnant water steel sheet 6 structure is less when sealing rod 7 absorbs water and expands simultaneously. The connecting rods 61 are connected with four positions at the bottom of the water stop steel plate 6 and distributed in a circular array by taking the axis of the anchor rod 2 as the center.

Referring to fig. 3, the anchor rod 2 is made of a reinforcement cage 21 and concrete 22, the reinforcement cage 21 includes a fixing reinforcement 211, four anchoring reinforcements 212 located around the fixing reinforcement 211, and a reinforcement ring 213 located outside the anchoring reinforcements 212, the fixing reinforcement 211 and the anchoring reinforcements 212 are welded, and the anchoring reinforcements 212 are distributed around the fixing reinforcement 211 in a circular array. The inside and outside both sides of steel reinforcement cage 21 all are provided with concrete 22, and the stock 2 that adopts above-mentioned structure has higher intensity and life than the structure of conventional concrete 22 parcel reinforcing bar. Be connected with the splice bar 4 of slope all around at steel reinforcement cage 21, the direction of splice bar 4 slope is from 2 centers of stock to tilt up all around, and splice bar 4 has increased the connection area between stock 2 and the cement layer 3 in inserting cement layer 3, has promoted the anti effect of floating of stock 2.

The implementation principle of the embodiment is as follows: during construction, the structures of the reinforcement cage 21 and the concrete 22 are matched to form the structure of the anchor rod 2, the diameter of the section of the anchor rod 2 is 25cm or 20cm, and the inclined connecting ribs 4 need to be welded on the reinforcement cage 21 before the concrete 22 is poured; the through hole 11 on the foundation 1 is excavated through a drilling machine, cement is poured to form a cement layer 3 after the excavation is finished, an anti-seepage groove is formed at the top of the through hole 11, and the anchor rod 2 can be driven into the through hole at the moment by cement strength bottom crossing. The concrete 22 on the anchor rods 2 with the anchor rods 2 above the foundation 1 is broken off, after which the arrangement of the flashing can be carried out.

The structure of the seepage-proofing groove is added, and seepage-proofing cement 5 is laid, so that the seepage-proofing effect is achieved on the top of the cement layer 3. The structures of the waterproof steel plate and the waterproof coiled material 51 are added, the anti-seepage treatment is carried out on the joint of the anchor rod 2 and the anti-seepage cement 5, and water flow is not easy to seep out along the side wall of the anchor rod 2. The bulge at the top of the water stop steel plate 6 and the structure of the water stop strip 7 are added, the junction of the water stop steel plate 6 and the water stop groove is prevented from seepage, and water flow is not easy to seep along the inner wall of the water stop groove. The anchor rod 2 has better waterproof effect at the connecting node.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an anti-floating anchor rod structure, includes ground (1), sets up through-hole (11) in ground (1) and is arranged in stock (2) and cement layer (3) in through-hole (11), and cement layer (3) are located stock (2) all around, its characterized in that: the waterproof part comprises an anti-seepage groove arranged at the top of the cement layer (3), anti-seepage cement (5) is laid in the anti-seepage groove, and a water stop steel plate (6) is arranged above the anti-seepage cement (5); the top of the water stop steel plate (6) extends to the upper part of the anti-seepage groove, the edge of the water stop steel plate protrudes towards the periphery, a water stop strip (7) is laid between the water stop steel plate (6) and the foundation (1), and the water stop strip (7) is abutted to the water stop steel plate (6); waterproof coiled materials (51) are installed between the inner side of the water stop steel plate (6) and the anchor rod (2), and the two sides of each waterproof coiled material (51) are respectively abutted to the water stop steel plate (6) and the anchor rod (2).

2. An anti-floating anchor structure according to claim 1, wherein: the anchor rod (2) comprises a reinforcement cage (21) and concrete (22), wherein the reinforcement cage (21) comprises fixed reinforcements (211), a plurality of anchoring reinforcements (212) positioned around the fixed reinforcements (211) and reinforcement rings (213) positioned on the outer layers of the anchoring reinforcements (212); concrete (22) is arranged on the inner side and the outer side of the reinforcement cage (21).

3. An anti-floating anchor structure according to claim 2, wherein: the periphery of the reinforcement cage (21) is provided with inclined connecting ribs (4), the connecting ribs (4) are arranged in an inclined manner, and the inclined direction is upwards inclined from the center to the periphery; the connecting ribs (4) are positioned in the cement layer (3).

4. An anti-floating anchor structure according to claim 2, wherein: the fixed steel bars (211) and the anchoring bars (212) are welded, and the anchoring bars (212) are arranged at four positions around the fixed steel bars (211).

5. An anti-floating anchor structure according to claim 1, wherein: the anchor rod (2) is provided with a waterproof plate (52), and the waterproof plate (52) is positioned at the top of the cement layer (3) and the periphery of the waterproof plate (52) is abutted against the inner wall of the through hole (11).

6. An anti-floating anchor structure according to claim 5, wherein: the periphery of the waterproof plate (52) is provided with an inclined plane, and the inclined direction of the inclined plane is upwards inclined from the center to the periphery.

7. An anti-floating anchor structure according to claim 1, wherein: the bottom of the water stop steel plate (6) is provided with a connecting rod (61), the connecting rod (61) is located in the anti-seepage cement (5), the bottom of the connecting rod (61) is provided with a tapered insertion end (62), the insertion end (62) comprises a tip portion and a tail portion, and the plane area of the tail portion is larger than the section area of the connecting rod (61).

8. An anti-floating anchor structure according to claim 7, wherein: the connecting rods (61) are arranged at four positions at the bottom of the water stop steel plate (6) and distributed around the anchor rod (2) in a circular array.