CN212612449U

CN212612449U - Hole-combining type anchor rod construction structure

Info

Publication number: CN212612449U
Application number: CN202020856771.1U
Authority: CN
Inventors: 坛发亮
Original assignee: Beijing Jianda Hongtu Construction Engineering Co ltd
Current assignee: Beijing Jianda Hongtu Construction Engineering Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-02-26
Anticipated expiration: 2030-05-20

Abstract

The utility model relates to a cellular-type stock construction structures relates to stock construction technical field, and it includes the ground layer, still includes two at least anchor eyes that offer on the lateral wall on ground layer and transverse arrangement, at least two stretching into ground one end intercommunication that crosses of anchor eye is equipped with the stock in every anchor eye respectively and has been annotated the grout body, and the grout body is even as an organic whole in the intercommunication department of two at least anchor eyes, and the anchor eye is stretched out respectively to the one end of two piece at least stocks, and this end screw thread connection has the nut and wears to be equipped with the backing plate, the nut supports the backing plate tightly on ground layer lateral wall. The utility model discloses the crossing connection of many stock in, interact has increased whole bearing capacity.

Description

Hole-combining type anchor rod construction structure

Technical Field

The utility model belongs to the technical field of the technique of stock construction and specifically relates to a cellular type stock construction structures is related to.

Background

With the rapid development of foundation engineering construction and the development and utilization of underground space engineering, the bolting technology is widely applied to engineering construction of side slopes, foundation pits, water conservancy projects, dams, mines, underground engineering and the like as an efficient and economic supporting technology. The anchor rod is used as a tension member penetrating into the stratum, one end of the anchor rod is connected with an engineering structure, the other end of the anchor rod penetrates into the stratum, the whole anchor rod is divided into a free section and an anchoring section, the free section is an area for transmitting the tension at the head of the anchor rod to an anchoring body, and the function of the free section is to apply prestress on the anchor rod; the anchoring section is an area where the prestressed tendons and the soil layer are bonded by cement paste, and has the functions of increasing the bonding friction effect of the anchoring body and the soil layer, increasing the bearing effect of the anchoring body and transmitting the pulling force of the free section to the deep part of the soil body.

The anchor rod among the prior art generally is linear structure, and the bonding frictional force of anchor body and soil layer is limited, though can adopt many anchor rods, does not have interact between these anchor rods, can't strengthen the bearing capacity each other. Therefore, there is a need for an anchor rod structure having multiple intersecting connections, which provides interaction between the anchor rods and increases the pressure bearing capacity of the anchor rods.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a and cellular type stock construction structures, many stock are crossing to be connected, and interact has increased whole bearing capacity.

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

the utility model provides a and cellular type stock construction structures, includes the ground layer, still includes two at least anchor eyes that set up on the lateral wall on ground layer and transverse arrangement, at least two the ground one end intercommunication that crosses of stretching into of anchor eye is equipped with the stock and has been annotated the grout body in every anchor eye respectively, and the grout body links as an organic wholely in the intercommunication department of two at least anchor eyes, and the anchor eye is stretched out respectively to the one end of two piece at least stock, and this end threaded connection has the nut and wears to be equipped with the backing plate, the nut supports the backing plate tightly on ground layer lateral wall.

By adopting the technical scheme, the grouting bodies are connected into a whole at the communication positions of the anchor holes, so that the anchor rods can interact with each other, the inclination angles of the anchor rods are different, and the anchor rods can be mutually restricted and acted in different directions, thereby increasing the integral pressure-bearing capacity; in the application, at least two anchor holes are transversely distributed and are not limited by the height of the side wall of the rock-soil layer; the anchor holes are mutually overlapped at the communicated positions, so that the occupied space is reduced, the volume of grouting body can be reduced, and materials are saved; because the anchor holes are communicated with each other, after the anchor holes drilled later are communicated with the anchor holes drilled earlier, the resistance borne by the drilling equipment is reduced, the drilling speed is high, and the construction efficiency is improved.

The utility model discloses further set up to: one ends of the at least two anchor holes, which extend into the rock-soil layer, are respectively inclined downwards, the inclination angles of the at least two anchor holes are sequentially different by 1-3 degrees, and the ends of the at least two anchor holes, which extend into the rock-soil layer, are arranged up and down.

The utility model discloses further set up to: the anchor eye sets up to three, and the downward inclination of the one end of three anchor eye stretching into the ground layer is 11 °, 13 and 15 in proper order.

Through adopting above-mentioned technical scheme, the part of stretching into ground layer of three anchor eyes is arranged from top to bottom and can be made the stock crisscross each other to the stock is difficult to mutual interference when the installation.

The utility model discloses further set up to: be provided with many stands on the ground layer lateral wall, at least two the stock is worn out from between the adjacent stand.

Through adopting above-mentioned technical scheme, the stand can support the ground layer lateral wall.

The utility model discloses further set up to: the waist rail is connected between the plurality of stand columns and the at least two base plates in an abutting mode.

Through adopting above-mentioned technical scheme, the waist rail can transmit the pressure that each stand and stock received, improves the whole supporting ability to the ground layer lateral wall.

The utility model discloses further set up to: and wedge-shaped cushion blocks are arranged between the nuts and the base plates on each anchor rod in a cushioning mode, and two sides of each wedge-shaped cushion block are respectively attached to the nuts and the base plates.

Through adopting above-mentioned technical scheme, wedge cushion fills up and establishes between nut and backing plate, can transition the angle between nut and the backing plate, is favorable to making firm the tight backing plate of supporting of nut.

The utility model discloses further set up to: and a flexible pad is padded between the nut and the wedge-shaped cushion block.

Through adopting above-mentioned technical scheme, the flexible pad increases frictional force and makes the nut be difficult to not hard up, can also help less angular deviation between transition nut and the wedge cushion, further improves the steadiness of nut.

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

1. the grouting bodies are connected into a whole and can be mutually restricted and acted in different directions, so that the integral pressure bearing capacity is improved; the height of the side wall of the rock-soil layer is not limited; the volume of the grouting body can be reduced, and materials are saved; the punching speed is high, and the construction efficiency is improved;

2. the parts of the three anchor holes extending into the rock-soil layer are arranged up and down, so that the anchor rods can be staggered with each other, and the anchor rods are not easy to interfere with each other during installation;

3. the flexible pad increases frictional force and makes the nut be difficult to not hard up, can also help less angular deviation between transition nut and the wedge cushion, further improves the steadiness of nut.

Drawings

Fig. 1 is a sectional view of a parallel hole type anchor construction structure.

Fig. 2 is a structural view of a bolt and a grout body of a parallel hole bolt construction structure.

Fig. 3 is a front view illustrating a parallel hole type anchor construction structure.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

Reference numerals: 1. a rock-soil layer; 2. an anchor eye; 3. an anchor rod; 4. grouting body; 5. a column; 6. a wale; 61. i-shaped steel; 62. a connecting rod; 7. a nut; 8. a base plate; 9. a wedge-shaped cushion block; 10. a flexible mat.

Detailed Description

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

Referring to fig. 1 and fig. 2, for the utility model discloses a and cellular type stock construction structures, including ground layer 1, seted up two at least anchor eyes 2 on ground layer 1's the lateral wall, 2 transverse arrangement of two at least anchor eyes, 1 one end of stretching into ground layer of anchor eye 2 communicates in cross, is equipped with respectively in every anchor eye 2 to insert and is equipped with stock 3 and has annotated grouting body 4, and grouting body 4 is even as an organic whole in the intercommunication department of two at least anchor eyes 2, and grouting body 4 can adopt cement mortar. Through the integrated grout body 4, the anchor rods 3 can be mutually restricted and acted in different directions, and the integral pressure-bearing capacity is increased. In order to ensure that the anchor rod 3 has better bearing capacity and also consider the construction difficulty of the anchor holes 2, the number of the anchor holes 2 is preferably three.

The heights of the ends, extending out of the anchor holes 2, of the three anchor holes 2 are the same, the ends, extending into the rock-soil layer 1, of the three anchor holes 2 are all inclined downwards, the inclination angles can be sequentially different by 1-3 degrees, the ends, extending into the rock-soil layer 1, of the three anchor holes 2 are arranged and communicated from top to bottom, the three anchor rods 3 are staggered, and therefore the anchor rods 3 are not prone to mutual interference when being installed. The specific angle difference of the anchor eye 2 is determined according to the length of the three anchor eyes 2, and the specific angle difference is described by taking the example that the inclination angles sequentially differ by 2 degrees. The downward inclination angles of the three anchor holes 2 in the vertical direction may be set to 11 °, 13 ° and 15 ° in sequence.

Referring to fig. 3, many stands 5 are provided with at the interval on the 1 lateral wall of ground layer, stand 5 can support 1 lateral wall of ground layer, 2 intervals in three anchor eyes are seted up between adjacent stand 5, the one end of three anchor eyes 2 is worn out respectively from between the adjacent stand 5, still be provided with waist rail 6 on many stands 5, waist rail 6 includes the I-steel 61 that two horizontal intervals set up, several connecting rods 62 of vertical fixedly connected with between two I-steels 61, three stock 3 pass between two I-steels 61 of back pass waist rail 6 between the adjacent stand 5. One end of each anchor rod 3 extending out of the anchor hole 2 is respectively in threaded connection with a nut 7 and penetrates through a base plate 8, the waist beam 6 is located between the plurality of upright posts 5 and the three base plates 8, and the base plates 8 are tightly abutted to the two I-shaped steels 61 of the waist beam 6 by the nuts 7. The waist beam 6 can transmit the pressure of each upright post 5 and the anchor rod 3, and the integral supporting capacity of the side wall of the rock-soil layer 1 is improved.

Referring to fig. 3 and 4, included angles exist between the three anchor rods 3 and the side wall of the rock-soil layer 1, included angles also exist between the backing plate 8 on the anchor rods 3 and the nuts 7, and the nuts 7 are not easy to firmly support the backing plate 8. In order to solve the problem, can wear to establish wedge cushion 9 on three stock 3 respectively, wedge cushion 9 is located between nut 7 and the backing plate 8, and the both sides of wedge cushion 9 laminate with nut 7 and backing plate 8 that correspond respectively, can transition the angle between nut 7 and the backing plate 8 to make the tight backing plate 8 of support that nut 7 can stabilize.

In order to further improve the stability of the nut 7, a flexible cushion 10 can be arranged between the nut 7 and the wedge-shaped cushion block 9 in a cushioning mode, and friction force is increased to enable the nut 7 not to be easily loosened. There are different angles in three anchor eyes 2 on vertical direction and horizontal direction, and the accuracy of each angle is not high moreover, and three wedge cushion 9 are difficult to each angle of accurate adaptation, and flexible pad 10 can also help less angular deviation between transition nut 7 and the wedge cushion 9 to further improve nut 7's steadiness.

The implementation principle of the embodiment is as follows: the grouting bodies 4 are connected into a whole at the communication positions of the anchor holes 2, so that the three anchor rods 3 can interact with each other, the inclination angles of the anchor rods 3 are different, and the anchor rods can be mutually restricted and acted in different directions, so that the integral pressure-bearing capacity is increased; the three anchor holes 2 are transversely distributed and are not limited by the height of the side wall of the rock-soil layer 1; in addition, the anchor holes 2 are mutually overlapped at the communicated position, so that the occupied space is reduced, the volume of the grouting body 4 can be reduced, and the material is saved; because the anchor holes 2 are communicated with each other, after the anchor holes 2 drilled later are communicated with the anchor holes 2 drilled earlier, the resistance borne by the drilling equipment is reduced, the drilling speed is high, and the construction efficiency is improved. The wedge-shaped cushion block 9 and the flexible cushion 10 can transition the included angle between the nut 7 and the cushion plate 8 on the inclined anchor rod 3, and the stability of the nut 7 is improved.

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. A hole-combining type anchor rod construction structure comprises a rock-soil layer (1), and is characterized in that: still include two at least seting up on the lateral wall of ground layer (1) and transverse arrangement's anchor eye (2), at least two the intercommunication that crosses of stretching into ground one end of anchor eye (2), be equipped with stock (3) and have grouted body (4) in every anchor eye (2) respectively, grouted body (4) are even as an organic whole in the intercommunication department of two at least anchor eyes (2), and anchor eye (2) are stretched out respectively to the one end of two piece at least stock (3), and this end threaded connection has nut (7) and wears to be equipped with backing plate (8), nut (7) support backing plate (8) tightly on ground layer (1) lateral wall.

2. A parallel hole type anchor construction structure according to claim 1, wherein: one ends of the at least two anchor holes (2) extending into the rock-soil layer (1) are respectively inclined downwards, the inclination angles of the at least two anchor holes are sequentially different by 1-3 degrees, and one ends of the at least two anchor holes (2) extending into the rock-soil layer (1) are arranged up and down.

3. A parallel hole type anchor construction structure according to claim 2, wherein: the anchor holes (2) are three, and the downward inclination angles of one ends of the three anchor holes (2) extending into the rock-soil layer (1) are respectively 11 degrees, 13 degrees and 15 degrees.

4. A parallel hole type anchor construction structure according to claim 1, wherein: be provided with many stands (5) on the ground layer (1) lateral wall, at least two stock (3) are worn out between adjacent stand (5).

5. A parallel hole type anchor construction structure according to claim 4, wherein: the novel vertical type floor is characterized by further comprising a transverse waist beam (6), wherein the waist beam (6) is abutted between the plurality of stand columns (5) and the at least two base plates (8).

6. A parallel hole type anchor construction structure according to any one of claims 2 to 5, wherein: every all fill up between nut (7) on stock (3) and backing plate (8) and be equipped with wedge cushion (9), the both sides of wedge cushion (9) laminate with nut (7) and backing plate (8) respectively.

7. A parallel hole type anchor construction structure according to claim 6, wherein: and a flexible pad (10) is padded between the nut (7) and the wedge-shaped cushion block (9).