CN213596994U

CN213596994U - Composite wall soil nail supporting construction

Info

Publication number: CN213596994U
Application number: CN202022247863.2U
Authority: CN
Inventors: 贾鹏飞; 崔军强; 张少毅; 何浪; 王祎; 陈继杰; 甄作鹏; 雷珺
Original assignee: Tianshui Geological Engineering Survey Institute Of Building Materials Co ltd
Current assignee: Tianshui Geological Engineering Survey Institute Of Building Materials Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-07-02
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a compound wall soil nail supporting construction, including soil nail and supporting plate, the soil nail includes the hollow body of rod, the one end of the body of rod is connected with the pole head, and the one end that the body of rod is close to the pole head is equipped with a plurality of discharge openings, the supporting plate package rubbing board body, the middle part of plate body is equipped with the perforation that is used for passing the body of rod, and the edge of plate body is equipped with first protruding board group and second protruding board group, first protruding board group and second protruding board group all are equipped with the connecting hole, and two adjacent protecting boards pass through the connecting hole and connect. The utility model discloses a set up soil nail and supporting plate, for traditional supporting construction, the stability of this structural support is stronger, and the soil layer of wall is more firm.

Description

Composite wall soil nail supporting construction

Technical Field

The utility model belongs to foundation ditch construction field, concretely relates to compound wall soil nail supporting construction.

Background

The foundation pit engineering is temporary support and soil body strengthening engineering which is adopted to protect the smooth construction of open cut of underground space and prevent the surrounding environment from being damaged. Two common support forms in the field of foundation pit support are pile anchor support and composite soil nailing wall support. In the process of foundation pit support, when the space meets the slope-releasing condition, the side wall of the foundation pit is preferably subjected to slope release, and the composite soil nailing wall is matched with a smaller slope-releasing coefficient for support. However, the slope is required to occupy the foundation pit and the surrounding space, and for the occasions with limited construction space, the slope coefficient is required to be increased or the vertical excavation is required to be carried out, and the pile anchor support of the side wall of the foundation pit is carried out, namely the side wall support is carried out in the mode that a reinforced concrete pile is matched with a prestressed anchor rod.

For the two support forms, the support capability of the composite soil nailing wall is limited, and the construction cost is relatively low; the pile anchor support has strong soil retaining capacity, but to achieve the expected soil retaining support effect, a plurality of slope protection piles are needed, and prestressed anchor rods are inserted into soil between the piles, so that the construction cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a composite wall soil nail supporting construction through the combination with soil nail and stock for when practicing thrift the cost, have better supporting effect.

In order to solve the above problems existing in the prior art, the utility model discloses the technical scheme who adopts is:

a composite wall soil nail supporting structure comprises soil nails and a supporting plate.

The soil nail comprises a hollow rod body, one end of the rod body is connected with a rod head, and one end of the rod body, which is close to the rod head, is provided with a plurality of discharge holes.

The supporting plate comprises a plate body, a through hole used for penetrating the rod body is formed in the middle of the plate body, a first convex plate group and a second convex plate group are arranged at the edge of the plate body, connecting holes are formed in the first convex plate group and the second convex plate group, and two adjacent supporting plates are connected through the connecting holes.

Through setting up soil nail and supporting plate, for traditional supporting construction, the stability of this structural support is stronger, and the soil layer of wall is more firm.

Further, the body of rod is hollow cylinder, the pole head is the cone, and the maximum diameter of pole head is greater than the diameter of the body of rod, will the diameter design of pole head is bigger, after punching, makes things convenient for subsequent slip casting.

Further, still include support piece, support piece includes sleeve and a plurality of bracing piece, telescopic internal diameter is greater than the external diameter of the body of rod, and is a plurality of the bracing piece is all connected in telescopic one end, and the bracing piece is the arc pole, and the bracing piece includes linkage segment and support section, the linkage segment is connected in the sleeve, the support section is used for a backplate of butt, through setting up support piece, utilizes support piece to be connected backplate and soil nail for the area of connecting is bigger, and the backplate after the connection is more stable.

Further, four supporting rods are connected to the sleeve, four supporting rods are distributed in a central symmetry mode by taking the axis of the sleeve as the center, and supporting force is more balanced by the aid of the four supporting rods, so that stability of the supporting plate is guaranteed.

Further, the plate body is square, first flange group is equipped with two, and the both ends that the plate body is relative are located respectively to two first flange groups, the second flange group is equipped with two, and two second flange groups are located respectively with the both ends that first flange group is adjacent, through setting up first flange group and second flange group for the supporting plate can interconnect, connects the back, and a plurality of supporting plates' an organic whole nature is better, has better supporting effect.

Further, first flange group includes two first flanges, second flange group includes two second flanges, and every first flange and every second flange all are equipped with a connecting hole, first flange thickness is half of plate body thickness, and the thickness of second flange is the same with first flange thickness, and one of them one side of plate body is located to first flange, and the opposite side of plate body is located to the second flange, and when two backplate were connected, first flange and second flange overlap joint to through bolted connection, after the overlap joint, the thickness of first flange and second flange just in time was the same with plate body thickness, will first flange and second flange all design to half of body thickness, with first flange and second flange overlap joint during the connection, just in time was the same with the thickness of plate body, made the supporting plate wholeness after the concatenation better.

Furthermore, one side of the plate body is provided with a containing groove and a supporting groove communicated with the containing groove, the supporting groove is arranged at the edge of the containing groove, when the supporting plate is abutted to the supporting piece, the supporting section is positioned in the supporting groove through the arrangement of the containing groove and the supporting groove after connection, and one end of the sleeve is positioned in the containing groove to avoid the movement of the supporting piece.

Further, the support grooves are four, and four support grooves and four support rods are arranged in a one-to-one correspondence manner, the accommodating groove is a circular groove, the axis of the accommodating groove and the axis of the through hole are collinear, the accommodating groove and the through hole are collinear, and after the sleeve is connected, the supporting force is more uniform.

Furthermore, the reinforced bar net is laid on one side, far away from the rod head, of the support protection plate, and the connection strength and reliability of the soil nails and the concrete are improved by arranging the reinforced bar net.

Further, the one end that the pole body was kept away from the pole head is equipped with the screw thread, still includes the nut, nut threaded connection is in the tip of the pole body, and the nut here also can be changed into the end cap, and the screw thread of the pole body can be the internal thread also can be the external screw thread, as long as can connect nut or end cap, inside shutoff to the pole body can.

The utility model has the advantages that:

(1) the utility model discloses a set up soil nail and supporting plate, for traditional supporting construction, the stability of this structural support is stronger, and the soil layer of wall is more firm.

(2) The utility model discloses a set up first protruding board group and second protruding board group for the supporting plate can interconnect, connects the back, and a plurality of supporting plates's an organic whole nature is better, has better supporting effect.

(3) The utility model discloses the thickness of first flange and second flange is exactly the same with plate body thickness, will first flange and second flange all design for half of body thickness, with first flange and second flange overlap joint during the connection, just in time the same with the thickness of plate body for the supporting plate wholeness after the concatenation is better.

(4) The utility model discloses a set up the reinforcing bar net, improved the joint strength and the reliability of soil nail and concrete.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a first schematic structural view of the fixing assembly of FIG. 1;

FIG. 3 is a second schematic structural view of the fixing assembly of FIG. 1;

FIG. 4 is a schematic view of the structure of the soil nail of FIG. 2;

FIG. 5 is a schematic view of the structure of the support shield of FIG. 3;

fig. 6 is a schematic structural view of the supporting member in fig. 3.

1-soil nailing; 11-a rod body; 12-a discharge hole; 13-a club head; 2-reinforcing mesh; 3-a screw cap; 4-supporting the guard plate; 41-plate body; 42-a receiving groove; 43-a support groove; 44-perforation; 45-a first raised plate; 46-a second flange; 47-connecting hole; 5-a support member; 51-a sleeve; 52-support bar.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and reference numerals.

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Example 1:

as shown in fig. 1, 4 and 5, a composite wall soil nailing and supporting structure comprises soil nails 1 and supporting plates 4.

The soil nail 1 comprises a hollow rod body 11, one end of the rod body 11 is connected with a rod head 13, and one end, close to the rod head 13, of the rod body 11 is provided with a plurality of discharge holes 12.

The supporting and protecting plate 4 comprises a plate body 41, a through hole 44 for penetrating through the rod body 11 is formed in the middle of the plate body 41, a first convex plate group and a second convex plate group are arranged on the edge of the plate body 41, the first convex plate group and the second convex plate group are both provided with connecting holes 47, and two adjacent supporting and protecting plates 4 are connected through the connecting holes 47.

Through setting up soil nail 1 and supporting plate 4, for traditional supporting construction, the stability of this structural support is stronger, and the soil layer of wall is more firm.

Example 2:

as shown in fig. 1-6, the composite wall soil nailing and supporting structure comprises soil nails 1 and supporting plates 4.

The club body 11 is a hollow cylinder, the club head 13 is a cone, and the maximum diameter of the club head 13 is larger than that of the club body 11.

The diameter of the rod head 13 is designed to be larger, so that subsequent grouting is facilitated after punching.

The support structure further comprises a support part 5, the support part 5 comprises a sleeve 51 and a plurality of support rods 52, the inner diameter of the sleeve 51 is larger than the outer diameter of the rod body 11, the support rods 52 are all connected to one end of the sleeve 51 (the support rods 52 are connected to the side wall of the sleeve 51 and protrude towards one end of the sleeve 51), the support rods 52 are arc-shaped rods (the arc-shaped rods are the longitudinal sections of the support rods 52, namely, the axial lines of the support rods 52 are arc-shaped), the support rods 52 comprise a connecting section and a supporting section, the connecting section is connected to the sleeve 51, and the supporting section is used for abutting against the supporting plate 4.

Through setting up support piece 5, utilize support piece 5 to connect supporting plate 4 and soil nail 1 for the area of connecting is bigger, and supporting plate 4 after the connection is more stable.

The sleeve 51 is connected with four support rods 52, and the four support rods 52 are distributed in a central symmetry manner by taking the axis of the sleeve 51 as the center.

By arranging the four support rods 52, the support force is more balanced, and the stability of the support plate 4 is ensured.

The plate body 41 is a square plate, the first convex plate groups are provided with two, the two first convex plate groups are respectively arranged at two opposite ends of the plate body 41, the second convex plate groups are provided with two, and the two second convex plate groups are respectively arranged at two adjacent ends of the plate body 41 and the first convex plate groups.

Through setting up first protruding board group and second protruding board group for a plurality of backplate 4 integrations are better after connecting, have better effect of strutting by 4 interconnect of backplate.

The first convex plate group comprises two first convex plates 45, the second convex plate group comprises two second convex plates 46, and each first convex plate 45 and each second convex plate 46 are provided with a connecting hole 47.

The thickness of first protruding board 45 is half of the thickness of plate body 41, and the thickness of second protruding board 46 is the same with the thickness of first protruding board 45, and wherein one side of plate body 41 is located to first protruding board 45, and the opposite side of plate body 41 is located to second protruding board 46, and when two backplate 4 were connected, first protruding board 45 and the overlap joint of second protruding board 46 to through bolted connection, after the overlap joint, the thickness of first protruding board 45 plus the thickness of second protruding board 46 just in time was the same with plate body 41 thickness.

The first convex plate 45 and the second convex plate 46 are both designed to be half of the thickness of the body, and the first convex plate 45 and the second convex plate 46 are overlapped during connection and are exactly the same as the thickness of the plate body 41, so that the integrity of the spliced supporting plate 4 is better.

One side of the plate body 41 is provided with a receiving groove 42 and a supporting groove 43 communicated with the receiving groove 42, and the supporting groove 43 is arranged at the edge of the receiving groove 42.

When the backup plate 4 abuts the backup 5, the backup section is located in the backup groove 43.

By providing the receiving groove 42 and the supporting groove 43, the supporting section is located in the supporting groove 43 after the connection, and one end of the sleeve 51 is located in the receiving groove 42, thereby preventing the movement of the supporting member 5.

The number of the supporting grooves 43 is four, and the four supporting grooves 43 and the four supporting rods 52 are arranged in a one-to-one correspondence manner.

The receiving groove 42 is a circular groove, and the axis of the receiving groove 42 is collinear with the axis of the through hole 44.

By arranging the receiving groove 42 and the through hole 44 in a collinear manner, the supporting force is more uniform after the sleeve 51 is connected.

The support guard plate is characterized by further comprising a reinforcing mesh 2, wherein the reinforcing mesh 2 is laid on one side of the support guard plate 4 far away from the rod head 13.

Through setting up reinforcing bar net 2, improved the joint strength and the reliability of soil nail 1 with the concrete.

The one end that pole body 11 kept away from pole head 13 is equipped with the screw thread, still includes

nut

3, 3 threaded connection of nut is in the tip of the pole body 11, and nut 3 here also can change into the end cap, and the screw thread of the pole body 11 can be the internal thread also can be the external screw thread, as long as can connect nut 3 or end cap, to the inside shutoff of the pole body 11 can.

The specific construction method comprises the following steps:

when strutting, squeeze into the wall body with soil nail 1 earlier, connect support piece 5 in the body of rod 11 after that, during the connection, the one end that makes sleeve 51 keep away from bracing piece 52 penetrates the body of rod 11 earlier, and make bracing piece 52 overlap joint in the wall body edge, embolia a backplate 4 after that, make bracing piece 52 card go into in the support groove 43, through first flange 45 and the overlap joint of second flange 46 between two adjacent backplate 4, rethread bolted connection, perhaps connect two adjacent backplate 4 earlier, the supporting plate 4 after will connecting cup joints in the body of rod 11 together again.

And grouting, namely pressing concrete into the rod body 11, pressing the concrete out of the discharge hole 12, allowing the concrete to enter between the rod body 11 and the soil body, and filling a gap between the rod body 11 and the soil body until the concrete flows out of the hole.

And (2) spraying concrete on the surface of the wall, integrating the supporting plate 4 with the wall, laying the reinforcing mesh 2 on the side of the supporting plate 4 away from the wall, after the reinforcing mesh 2 is laid, selectively welding the reinforcing mesh 2 and the rod body 11 partially (the step can be omitted), and finally spraying a layer of concrete.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. The utility model provides a compound wall soil nail supporting construction which characterized in that: comprises soil nails (1) and a supporting and protecting plate (4);

the soil nail (1) comprises a hollow rod body (11), one end of the rod body (11) is connected with a rod head (13), and one end of the rod body (11) close to the rod head (13) is provided with a plurality of discharge holes (12);

the supporting and protecting plate (4) comprises a plate body (41), a through hole (44) used for penetrating through the rod body (11) is formed in the middle of the plate body (41), a first convex plate group and a second convex plate group are arranged at the edge of the plate body (41), the first convex plate group and the second convex plate group are respectively provided with a connecting hole (47), and two adjacent supporting and protecting plates (4) are connected through the connecting holes (47).

2. A composite wall soil nailing supporting construction according to claim 1, wherein: still include support piece (5), support piece (5) include sleeve (51) and a plurality of bracing piece (52), the internal diameter of sleeve (51) is greater than the external diameter of the body of rod (11), bracing piece (52) are the arc pole, and bracing piece (52) are including linkage segment and support section, the linkage segment is connected in sleeve (51), the support section is used for a butt backplate (4).

3. A composite wall soil nailing supporting construction according to claim 2, wherein: the sleeve (51) is connected with four support rods (52), and the four support rods (52) are distributed in a central symmetry mode by taking the axis of the sleeve (51) as the center.

4. A composite wall soil nailing supporting construction according to claim 1, wherein: the plate body (41) is a square plate, the first convex plate groups are provided with two, the two first convex plate groups are respectively arranged at two opposite ends of the plate body (41), the second convex plate groups are provided with two, and the two second convex plate groups are respectively arranged at two adjacent ends of the plate body (41) and the first convex plate groups.

5. A composite wall soil nailing supporting structure according to claim 4, wherein: the first convex plate group comprises two first convex plates (45), the second convex plate group comprises two second convex plates (46), and each first convex plate (45) and each second convex plate (46) are provided with a connecting hole (47).

6. A composite wall soil nailing supporting structure according to claim 5, wherein: the thickness of the first convex plate (45) is half of that of the plate body (41), and the thickness of the second convex plate (46) is the same as that of the first convex plate (45).

7. A composite wall soil nailing supporting construction according to claim 3, wherein: one side of the plate body (41) is provided with an accommodating groove (42) and a supporting groove (43) communicated with the accommodating groove (42), and the supporting groove (43) is arranged at the edge of the accommodating groove (42).

8. A composite wall soil nailing supporting construction according to claim 7, wherein: the number of the support grooves (43) is four, and the four support grooves (43) and the four support rods (52) are arranged in a one-to-one correspondence mode.

9. A composite wall soil nailing supporting construction according to claim 1, wherein: the novel golf club head is characterized by further comprising a reinforcing mesh (2), wherein the reinforcing mesh (2) is laid on one side, far away from the club head (13), of the support protection plate (4).

10. A composite wall soil nailing supporting construction according to claim 9, wherein: the rod body (11) is a hollow cylinder, the rod head (13) is a cone, and the maximum diameter of the rod head (13) is larger than that of the rod body (11).