CN214245706U

CN214245706U - Enlarged footing stock structure

Info

Publication number: CN214245706U
Application number: CN202022892419.6U
Authority: CN
Inventors: 纪银凤
Original assignee: Beijing Dongdi Geotechnical Engineering Co ltd
Current assignee: Beijing Dongdi Geotechnical Engineering Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-09-21
Anticipated expiration: 2030-12-03

Abstract

The utility model belongs to the technical field of the anchor technique and specifically relates to an enlarged footing stock structure is related to, and it is including inserting the body of rod in the ground, and the body of rod outside is provided with the barb pole, and barb pole one end is articulated with the body of rod, is provided with the expansion device that is used for opening the barb pole between the other end and the body of rod. In this application, open barb rod through expansion device, in barb rod inserted the pore wall, increased the compactness of being connected between stock structure and the pore wall, improved the anchor power between stock structure and the pore wall, reached the effect that has increased stock structure withdrawal resistance.

Description

Enlarged footing stock structure

Technical Field

The application relates to the field of anchoring technology, in particular to an enlarged footing anchor rod structure.

Background

At present, in the rock-soil anchoring technology of foundation pit, slope support and the like, an anchor rod structure is commonly used, an anchor rod is used as a tension member penetrating into a stratum, one end of the anchor rod is connected with an engineering structure, and 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 transmits the tension at the head of the anchor rod to the region of the 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 stock structure generally adopts one or more reinforcing bars to bind, drills in required reinforcement position, then downthehole with stock one end insert, then carries out the slip casting downthehole, waits for the thick liquids to solidify, and the stock structure installation is accomplished.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the anchoring force of the anchor rod structure and the hole wall is insufficient, so that the pulling resistance of the anchor rod structure is reduced.

SUMMERY OF THE UTILITY MODEL

In order to increase anchor rod structure's withdrawal resistance, this application provides an enlarged footing anchor rod structure.

The application provides an enlarged footing stock structure adopts following technical scheme:

the utility model provides an enlarged footing stock structure, is provided with the barb pole including the body of rod in inserting the ground outside the body of rod, barb pole one end and body of rod are articulated, are provided with the expansion device that is used for opening the barb pole between the other end and the body of rod.

Through adopting above-mentioned technical scheme, after drilling the hole with the drilling machine in required position, it is downthehole to remove the body of rod insert, then opens barb pole through expansion device, and in barb pole inserted the hole wall, the compactness of being connected between stock structure and the hole wall has been increased, has improved the anchor power between stock structure and the hole wall, has reached the effect that has increased stock structure withdrawal resistance.

Preferably, the unfolding device comprises a movable ring and a support rod, the movable ring is sleeved on the outer side of the rod body and is in sliding connection with the rod body, the support rod is located between the barb rod and the movable ring, and two ends of the support rod are respectively hinged to the barb rod and the movable ring.

By adopting the technical scheme, when the unfolding device is opened, the movable ring is moved and slides along the rod body, the movable ring drives the support rod to move, the support rod drives the barb rod to be opened, and the barb rod is inserted into the inner side of the hole wall, so that the unfolding of the barb rod is completed; when laying the stock structure, the barb pole laminating is at body of rod lateral wall, has reduced the resistance between stock structure and the pore wall when laying, has improved the convenience of laying the stock structure.

Preferably, the movable rings are provided with a plurality of movable rings, a connecting rod is arranged between every two adjacent movable rings, and two ends of the connecting rod are fixedly connected with the two adjacent movable rings respectively.

Through adopting above-mentioned technical scheme, realized the simultaneous movement between a plurality of movable rings through the transmission of connecting rod, made every barb pole open in step, realized the linkage between the barb pole, improved the expansion efficiency of a plurality of barb poles.

Preferably, an adjusting component for enabling the movable ring to move is arranged between the movable ring and the rod body.

Through adopting above-mentioned technical scheme, utilize adjusting part to come to adjust the position of activity ring in the body of rod outside, adjusting part drives the activity ring and slides along the body of rod, and adjusting part's setting has improved the convenience of sliding the activity ring.

Preferably, the adjusting assembly comprises a screw and an adjusting ring, the screw is rotatably connected with the rod body, the adjusting ring is sleeved on the outer side of the screw, the adjusting ring is in threaded connection with the screw, and the adjusting ring is fixedly connected with the movable ring.

Through adopting above-mentioned technical scheme, when the position of activity ring is adjusted to needs, rotate the screw rod, the screw rod rotates around self axis, and the screw rod drives the adjustable ring and moves along the screw rod, adjusts the pole and drives the activity ring and take place to remove, has realized the change to activity ring position, has improved the convenience of slip activity ring, has accelerated the speed that the activity ring removed simultaneously.

Preferably, the rod body is provided with a placing groove on the outer side, and the barb rod and the support rod are both positioned in the placing groove when the barb rod is not unfolded.

Through adopting above-mentioned technical scheme, when barb pole did not expand, barb pole and vaulting pole do not expose the arrangement groove outside, have reduced the contact between barb pole and vaulting pole and the pore wall, have further reduced the resistance when laying the stock structure.

Preferably, the one end that the body of rod inserted ground sets up to the anchor head, and the anchor head lateral wall is provided with the limiting plate, limiting plate and anchor head lateral wall fixed connection.

Through adopting above-mentioned technical scheme, after the body of rod inserted the downthehole that the drilling machine bored, the body of rod drove limiting plate and pore wall butt, and the limiting plate carries on spacingly to the anchor head, has increased the frictional force between anchor head and the pore wall, with the rigidity of anchor head, has reduced the probability that the anchor head takes place to remove when rotating the screw rod, has improved the stability that anchor head and pore wall are connected.

Preferably, a grouting channel is formed in the rod body, and two ends of the grouting channel are respectively communicated with two ends of the rod body.

Through adopting above-mentioned technical scheme, lay the completion back at the stock structure, carry out the slip casting to the downthehole through the slip casting passageway, the thick liquids is full of the gap between the body of rod and the pore wall, and after the thick liquids solidify, realize reinforced (rfd) effect to the body of rod, has improved the convenience of slip casting in the gap to the body of rod and pore wall simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the barb rod and the expansion device, the barb rod is opened by utilizing the expansion device, and the barb rod is inserted into the hole wall, so that the connection tightness between the anchor rod structure and the hole wall is increased, the anchoring force between the anchor rod structure and the hole wall is improved, and the effect of increasing the pulling resistance of the anchor rod structure is achieved;

2. through the arrangement of the connecting rods, each barb rod is opened synchronously, so that the linkage between barb rods is realized, and the expansion efficiency of a plurality of barb rods is improved;

3. through the setting of arrangement groove, reduced the contact between barb rod and vaulting pole and the pore wall, further reduced the resistance when laying the stock structure.

Drawings

FIG. 1 is a schematic view of the present application within a reinforcement hole;

FIG. 2 is a schematic structural diagram of the present application;

FIG. 3 is a schematic view of a reinforcement hole;

FIG. 4 is a schematic view of the bottom end of the rod body;

FIG. 5 is a schematic view of the top end of the stick body.

Description of reference numerals: 1. a rod body; 11. an anchor head; 111. a limiting plate; 12. a placing groove; 121. a barb rod; 2. a deployment device; 21. a movable ring; 211. a connecting rod; 22. a stay bar; 3. an adjustment assembly; 31. a screw; 32. an adjusting ring; 321. a first lever; 4. grouting a channel; 5. a soil layer; 51. and (7) reinforcing the holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses enlarged footing stock structure. Referring to fig. 1 and 2, an enlarged footing stock structure includes the body of rod 1, and body of rod 1 inserts in soil layer 5, and the body of rod 1 lateral wall sets up barb rod 121, is provided with expansion device 2 between barb rod 121 and the body of rod 1 outside. Insert the body of rod 1 in soil layer 5, then utilize expansion device 2 to expand barb rod 121, make barb rod 121 insert in soil layer 5, increased the compactness of being connected between stock structure and the pore wall, improved the anchor power between stock structure and the pore wall, reached the effect that has increased stock structure withdrawal resistance.

Referring to fig. 2 and 3, the surface of the soil 5 is provided with reinforcement holes 51, the reinforcement holes 51 are vertically arranged, and the reinforcement holes 51 are drilled by a drilling machine. The movable rod body 1 is inserted into the reinforcing hole 51, and after the barb rod 121 is unfolded, the barb rod 121 is inserted into the hole wall, so that the resistance for moving out the rod body 1 is increased.

Referring to fig. 3 and 4, the rod body 1 is vertically arranged, the bottom end of the rod body 1 is provided with an anchor head 11, the anchor head 11 is vertically arranged, the top end of the anchor head 11 is fixedly connected with the bottom end of the rod body 1, the bottom end of the anchor head 11 is provided with a pointed end, and the bottom end of the anchor head 11 is inserted into the bottom wall of the reinforcing hole 51; in order to carry out spacing to anchor

head

11, 11 lateral walls of anchor head are provided with limiting plate 111, and limiting plate 111 is vertical to be set up, and limiting plate 111 is provided with two, and two limiting plates 111 are along the axis symmetry of anchor head 11, two limiting plates 111 respectively with 11 lateral walls fixed connection of anchor head, the both sides and the reinforcement hole 51 lateral wall butt that two limiting plates 111 kept away from each other.

Remove the body of rod 1 and insert in the reinforcement hole 51, in the body of rod 1 drove 11 bottom ends of anchor head and inserts the diapire of reinforcement hole 51, anchor head 11 drove two limiting plates 111 and the lateral wall butt of reinforcement hole 51, carries on spacingly to anchor head 11 through the frictional force between limiting plate 111 and the lateral wall of reinforcement hole 51, has reduced the rotation of anchor head 11 in reinforcement hole 51.

Referring to fig. 4, the sidewall of the rod body 1 is provided with eight placement grooves 12, the placement grooves 12 are vertically arranged, every four placement grooves are divided into two groups, the two groups of placement grooves 12 are symmetrical along the central axis of the rod body 1, the planes of the two groups of placement grooves 12 are perpendicular to the planes of the two limiting plates 111, and the heights of the two groups of placement grooves 12 outside the rod body 1 are the same.

Referring to fig. 3 and 4, eight barb rods 121 are provided, eight barb rods 121 are respectively located eight accommodating grooves 12, barb rods 121 are obliquely arranged, and the bottom ends of barb rods 121 are hinged to the bottom walls of accommodating grooves 12. When the removal body of rod 1 inserts in strengthening hole 51, barb pole 121 is located and places groove 12, has reduced the butt between barb pole 121 and the strengthening hole 51 lateral wall, has reduced the body of rod 1 and has laid the resistance between in-process and the strengthening hole 51 lateral wall, and the body of rod 1 is laid convenient and fast.

Referring to fig. 3 and 4, the unfolding device 2 includes movable ring 21 and vaulting pole 22, and movable ring 21 is provided with four, and the cover of movable ring 21 is established in the body of rod 1 outside, and movable ring 21 and body of rod 1 lateral wall sliding connection, movable ring 21 are located barb pole 121 top, and movable ring 21 is located between two adjacent barb poles 121, and vaulting pole 22 one end is articulated with barb pole 121 top, and the other end is articulated with movable ring 21 lateral wall.

When the unfolding device 2 is opened, the movable ring 21 is moved, the movable ring 21 slides along the rod body 1, the movable ring 21 drives the support rod 22 to move, the support rod 22 drives the top end of the barb rod 121 to be far away from the rod body 1, the barb rod 121 is opened, and meanwhile, the barb rod 121 is inserted into the reinforcing hole 51.

Referring to fig. 4, a connecting rod 211 is arranged between two adjacent movable rings 21, the connecting rod 211 is vertically arranged, and the top end and the bottom end of the connecting rod 211 are respectively fixedly connected with two sides of the two adjacent movable rods, which are close to each other. The setting of connecting rod 211 has realized the linkage of four activity rings 21 along vertical direction, provides the expansion efficiency of all barb poles 121, labour saving and time saving.

Referring to fig. 5, an adjusting assembly 3 is arranged between the movable ring 21 and the outer side wall of the rod body 1, the adjusting assembly 3 comprises a screw 31 and an adjusting ring 32, the screw 31 is vertically arranged, the bottom end of the screw 31 is rotatably connected with the top end of the rod body 1, the screw 31 and the rod body 1 share the same axis, the cross section area of the screw 31 is the same as that of the rod body 1, and the outer side of the screw 31 is provided with threads; the adjustable ring 32 level sets up, adjustable ring 32 and screw 31 lateral wall threaded connection, is provided with first pole 321 between adjustable ring 32 and the activity ring 21 of keeping away from anchor head 11, the vertical setting of first pole 321, first pole 321 top and adjustable ring 32 top fixed connection, first pole 321 bottom and activity ring 21 top fixed connection, first pole 321 and connecting rod 211 collineation altogether.

When using adjusting part 3, rotate screw rod 31, screw rod 31 rotates around self axis, and screw rod 31 drives adjustable ring 32 and moves along screw rod 31, adjusts the transmission of pole through first pole 321 and makes activity ring 21 slide along the body of rod 1, and then drives four activity ring 21 synchronous motion, has improved the convenience of removing activity ring 21.

Referring to fig. 4 and 5, slip casting passageway 4 has all been seted up in the body of rod 1 and the screw rod 31, and slip casting passageway 4 is vertical to be set up, and slip casting passageway 4 sets up along the axis of the body of rod 1 and screw rod 31, and the 4 tops of slip casting passageway flush with the screw rod 31 top, and 4 bottoms of slip casting passageway communicate with 11 lateral walls of anchor head and flush.

After the barb rod 121 is unfolded, slurry is injected into the grouting channel 4, the slurry enters a gap between the rod body 1 and the side wall of the reinforcing hole 51 along the grouting channel 4, and the slurry is solidified by standing, so that the pulling resistance of the anchor rod structure is increased.

The implementation principle of the enlarged footing stock structure of the embodiment of this application does: when the installation stock structure, drill the position of required reinforcement earlier, then remove the body of rod 1 and insert in the reinforcement hole 51, later utilize adjusting part 3 to drive movable ring 21 and take place to remove, the fly leaf makes barb pole 121 expand through vaulting pole 22, barb pole 121 top is inserted in the reinforcement hole 51 lateral wall, then inject the thick liquids in slip casting passageway 4, until the thick liquids are full of the body of rod 1 and the gap between the reinforcement hole 51 lateral wall, the solidification of stewing, then carry out the resistance to plucking power test, the stock structure installation finishes through experimental back.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an enlarged footing stock structure which characterized in that: the barb type ground wire inserting device comprises a rod body (1) inserted into the ground, wherein a barb rod (121) is arranged on the outer side of the rod body (1), one end of the barb rod (121) is hinged to the rod body (1), and an unfolding device (2) used for opening the barb rod (121) is arranged between the other end of the barb rod and the rod body (1).

2. An enlarged head anchor structure according to claim 1, wherein: unfolding device (2) are including activity ring (21) and vaulting pole (22), and activity ring (21) cover is established in the body of rod (1) outside, and activity ring (21) and body of rod (1) sliding connection, and vaulting pole (22) are located between barb pole (121) and activity ring (21), and vaulting pole (22) both ends are articulated with barb pole (121) and activity ring (21) respectively.

3. An enlarged head anchor structure according to claim 2, wherein: the movable rings (21) are provided with a plurality of connecting rods (211), the connecting rods (211) are arranged between every two adjacent movable rings (21), and two ends of each connecting rod (211) are fixedly connected with the two adjacent movable rings (21) respectively.

4. An enlarged head anchor structure according to claim 2, wherein: an adjusting component (3) used for enabling the movable ring (21) to move is arranged between the movable ring (21) and the rod body (1).

5. An enlarged head anchor structure according to claim 4, wherein: adjusting part (3) include screw rod (31) and adjustable ring (32), and screw rod (31) rotate with the body of rod (1) and are connected, and adjustable ring (32) cover is established in the screw rod (31) outside, and adjustable ring (32) and screw rod (31) threaded connection, adjustable ring (32) and activity ring (21) fixed connection.

6. An enlarged head anchor structure according to claim 2, wherein: the storage groove (12) is formed in the outer side of the rod body (1), and the barb rod (121) and the support rod (22) are both located in the storage groove (12) when the barb rod (121) is not in an unfolded state.

7. An enlarged head anchor structure according to claim 1, wherein: the anchor rod is characterized in that one end, inserted into the ground, of the rod body (1) is provided with an anchor head (11), a limiting plate (111) is arranged on the side wall of the anchor head (11), and the limiting plate (111) is fixedly connected with the side wall of the anchor head (11).

8. An enlarged head anchor structure according to claim 1, wherein: a grouting channel (4) is formed in the rod body (1), and two ends of the grouting channel (4) are communicated with two ends of the rod body (1) respectively.