CN218933234U - Anti-floating anchor rod and anchor rod foundation - Google Patents

Abstract

The utility model discloses an anti-floating anchor rod and an anchor rod foundation, wherein the anti-floating anchor rod comprises a rod body, an anchor head and a driving piece, the anchor head comprises a first connecting arm, a second connecting arm and a moving piece, the first connecting arm is rotationally connected with the rod body, the first connecting arm is rotationally connected with the second connecting arm, the second connecting arm is rotationally connected with the moving piece, and the moving piece can move along the length direction of the rod body; the driving piece is arranged on the rod body and is used for driving the moving piece to move along the length direction of the rod body so that the anchor head can be switched between a closed state and an unfolding state. Compared with the anti-floating anchor rods in the related art, the anti-floating anchor rod can provide larger anti-pulling force for the underground structure, is beneficial to reducing the material cost of the underground structure and reduces the manufacturing cost of the underground structure.

Description

Anti-floating anchor rod and anchor rod foundation

Technical Field

The utility model relates to the technical field of anchor rods, in particular to an anti-floating anchor rod and an anchor rod foundation.

Background

In recent years, in order to better solve the problem of shortage of land, underground space is increasingly widely used, and large underground structures such as underground swimming pools, large basements, large underground caverns and the like which encounter underground water are appeared in engineering. Because the underground structures have large areas, deeper foundation buries and relatively fewer building layers, under the condition of highest historical underground water level, the dead weight of the underground structures is insufficient to resist the upward buoyancy of underground water, and the anti-floating problem of the underground structures is increasingly outstanding.

The anti-floating anchor rod has high anti-pulling force, economy, environmental protection, no space occupation and extremely high economic and social benefits. The down-the-hole drill is used for drilling holes in foundation rocks, and the underground structure or the foundation of the underground structure and the foundation rock layer are connected into a whole by arranging an anti-floating anchor rod to be used as a part of the underground structure or the foundation of the underground structure, so that the floating force of underground water can be effectively resisted.

The anti-floating anchor rod in the related art meets the anti-floating requirement by simply relying on the friction force between the anchor rod and the soil body, and the pulling resistance of a single anchor rod is smaller, so that the anti-floating requirement of an underground structure can be met only by using a large number of anchor rods with longer length, and the underground structure has high material cost and high engineering cost.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

To this end, embodiments of the present utility model provide an anti-floating anchor to reduce the cost of an underground structure.

The anti-floating anchor rod comprises a rod body, an anchor head and a driving piece, wherein the anchor head comprises a first connecting arm, a second connecting arm and a moving piece, the first connecting arm is rotationally connected with the rod body, the first connecting arm is rotationally connected with the second connecting arm, the second connecting arm is rotationally connected with the moving piece, and the moving piece can move along the length direction of the rod body; the driving piece is arranged on the rod body and is used for driving the moving piece to move along the length direction of the rod body so that the anchor head can be switched between a closed state and an unfolding state.

In some embodiments, the driving member is movably disposed on the rod body along the length direction of the rod body, and the driving member drives the moving member to move along the length direction of the rod body by pushing the moving member.

In some embodiments, the driving member is threadedly coupled to the rod body to move the driving member along a length direction of the rod body by rotating the driving member.

In some embodiments, the moving member is cylindrical, and the moving member is movably sleeved on the rod body along the length direction of the rod body.

In some embodiments, the number of the first connecting arms and the second connecting arms is plural, the plural first connecting arms are arranged at intervals along the circumferential direction of the rod body, the plural second connecting arms are arranged at intervals along the circumferential direction of the rod body, the plural first connecting arms are in one-to-one correspondence with the plural second connecting arms, and each first connecting arm is in rotational connection with the corresponding second connecting arm.

In some embodiments, a connecting plate is disposed on the rod body, and the first connecting arm is rotatably connected with the connecting plate.

In some embodiments, at least one of the first and second connection arms is plate-shaped.

In some embodiments, the second connecting arm is disposed on a side of the first connecting arm near the top end of the rod body, the first end of the first connecting arm is rotationally connected with the bottom end of the rod body, the second end of the first connecting arm is rotationally connected with the first end of the second connecting arm, and the second end of the second connecting arm is rotationally connected with the moving member.

In some embodiments, in the closed state, the angle between the first and second connecting arms is less than 180 °, and the first end of the first connecting arm is disposed more adjacent to the stem than the second end of the first connecting arm, which is disposed more adjacent to the stem than the first end of the second connecting arm, in the radial direction of the stem; and/or in the unfolded state, an included angle between the first connecting arm and the rod body is smaller than or equal to 90 degrees.

The embodiment of the utility model also provides an anchor rod foundation.

The anchor rod foundation provided by the embodiment of the utility model comprises a foundation body and an anti-floating anchor rod, wherein the anti-floating anchor rod is the anti-floating anchor rod in any embodiment, and the top end of the anti-floating anchor rod is connected with the foundation body.

When the anti-floating anchor rod disclosed by the embodiment of the utility model is used, after the anti-floating anchor rod reaches a preset depth in a matrix (such as soil body) in a closed state, the driving part drives the moving part to move along the length direction of the rod body, and the moving part drives the first connecting arm to rotate around the rod body and the second connecting arm to rotate around the moving part, so that the anchor head is in an unfolding state. When the anti-floating anchor rod receives the pulling force along the bottom to the top direction of the rod body, the anti-floating anchor rod generates a friction force along the top to the bottom direction of the rod body with the matrix, and the matrix also applies a pressure along the top to the bottom direction of the rod body to the anchor head, and the friction force and the pressure jointly form the anti-pulling force of the anti-floating anchor rod. Compared with the prior art that the anti-floating anchor rod only takes the friction force between the anti-floating anchor rod and the soil body as the pulling resistance, the anti-floating anchor rod can provide larger pulling resistance for the underground structure. Therefore, the anti-floating requirement of the underground structure can be met by using the anti-floating anchors with shorter length and smaller number, which is beneficial to reducing the material cost of the underground structure and the manufacturing cost of the underground structure.

Drawings

FIG. 1 is a schematic view of an anti-floating anchor according to one embodiment of the present utility model in a closed configuration.

Fig. 2 is a view in the A-A direction of fig. 1.

Figure 3 is a schematic view of an embodiment of the present utility model showing the anti-floating anchor in an expanded configuration.

Fig. 4 is a B-B view of fig. 3.

Fig. 5 is a schematic view of a portion of an anti-floating anchor according to another embodiment of the present utility model in a closed configuration.

Fig. 6 is a schematic view of a portion of an anti-floating anchor according to another embodiment of the present utility model in a deployed state.

Fig. 7 is a schematic view of a portion of an anti-floating anchor according to yet another embodiment of the present utility model in a closed configuration.

Fig. 8 is a partial schematic view of an anti-floating anchor according to yet another embodiment of the present utility model in a deployed state.

Fig. 9 is a cross-sectional view of a front view of an anchor foot according to one embodiment of the present utility model.

Fig. 10 is a partial structural schematic diagram of fig. 9.

Fig. 11 is a cross-sectional view of a left side view of an anchor foot according to one embodiment of the present utility model.

Fig. 12 is a cross-sectional view of a front view of a rock bolt foundation of another embodiment of the present utility model.

Reference numerals:

an anti-floating anchor 100;

a rod body 1; a top end 101; a bottom end 102; an external thread 103; a connection plate 104; an anchor 105;

an anchor head 2; a first connection arm 201; a second connecting arm 202; a moving member 203;

a driving member 3;

a first hinge 4;

a second hinge 5;

a third hinge 6;

a fastener 7;

a anchor base 1000;

a base body 200;

a tunnel 300;

a manhole 400;

a cat ladder 500;

and a well cover 600.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

As shown in fig. 1 to 9, an anti-floating anchor 100 according to an embodiment of the present utility model includes a rod body 1, an anchor head 2, and a driving member 3. The anchor head 2 comprises a first connecting arm 201, a second connecting arm 202 and a moving piece 203, wherein the first connecting arm 201 is rotationally connected with the rod body 1, the first connecting arm 201 is rotationally connected with the second connecting arm 202, the second connecting arm 202 is rotationally connected with the moving piece 203, and the moving piece 203 is movable along the length direction of the rod body 1. The driving member 3 is provided on the rod body 1, and the driving member 3 is used for driving the moving member 203 to move along the length direction of the rod body 1 so that the anchor head 2 is switched between the closed state and the open state.

When the anti-floating anchor 100 according to the embodiment of the present utility model is used, after the anti-floating anchor 100 reaches a preset depth in a matrix (for example, soil body) in a closed state (as shown in fig. 1), the driving member 3 drives the moving member 203 to move along the length direction of the rod body 1, the moving member 203 drives the first connecting arm 201 to rotate around the rod body 1, and the second connecting arm 202 rotates around the moving member 203, so that the anchor head 2 is in an unfolded state (as shown in fig. 3). When the anti-floating anchor 100 receives a tensile force in the direction from the bottom end 102 to the top end 101 of the rod body 1, the anti-floating anchor 100 generates a frictional force with the base body in the direction from the top end 101 to the bottom end 102 of the rod body 1, and the base body applies a compressive force (resistance) to the anchor head 2 in the direction from the top end 101 to the bottom end 102 of the rod body 1, and the frictional force and the compressive force together form an anti-pulling force of the anti-floating anchor 100.

When the anti-floating anchor 100 of the embodiment of the utility model is used, compared with the anti-floating anchor in the related art which only uses the friction force between the anti-floating anchor and the soil body as the anti-pulling force, the anti-floating anchor can provide larger anti-pulling force for the underground structure. Therefore, the anti-floating requirement of the underground structure can be met by using the anti-floating anchors 100 with shorter length and smaller number, which is beneficial to reducing the material cost of the underground structure and the manufacturing cost of the underground structure.

In some embodiments, the second connecting arm 202 is disposed on a side of the first connecting arm 201 near the top end 101 of the rod body 1, the first end of the first connecting arm 201 is rotatably connected to the bottom end 102 of the rod body 1, the second end of the first connecting arm 201 is rotatably connected to the first end of the second connecting arm 202, and the second end of the second connecting arm 202 is rotatably connected to the moving member 203.

In order to make the technical solution of the present application easier to understand, the technical solution of the present application will be further described below by taking the case that the length direction of the rod body 1 coincides with the up-down direction as an example. Wherein, the up-down direction is shown in fig. 1 and 3.

For example, as shown in fig. 1, the rod body 1 has a top end 101 and a bottom end 102 opposite to each other in the longitudinal direction thereof, and the top end 101 is provided above the bottom end 102. The second connecting arm 202 is disposed on the upper side of the first connecting arm 201, the first end of the first connecting arm 201 is rotatably connected with the bottom end 102 of the rod body 1, the second end of the first connecting arm 201 is rotatably connected with the first end of the second connecting arm 202, and the second end of the second connecting arm 202 is rotatably connected with the moving member 203. In the closed state, the second end of the first connecting arm 201 is located above the first end of the first connecting arm 201 and the second end of the second connecting arm 202 is located above the first end of the second connecting arm 202. When the driving member 3 moves from top to bottom, the driving member 203 moves from top to bottom, so that the second end of the first connecting arm 201 and the first end of the second connecting arm 202 move away from the rod body 1, respectively, and the anchor head 2 is switched to the deployed state.

Through the above design to anchor head 2 for under the certain circumstances of first linking arm 201 and second linking arm 202's length, anchor head 2 is in the state of expanding, and the size of anchor head 2 in the radial direction of body of rod 1 is bigger, is favorable to improving the base member and applys the pressure of anchor head 2, along the top 101 of body of rod 1 to bottom 102 direction, is favorable to further improving the resistance to plucking of anti-floating anchor 100.

Alternatively, as shown in fig. 1, a first end of the first connecting arm 201 is hinged to the rod body 1 through a first hinge 4, a second end of the first connecting arm 201 is hinged to a first end of the second connecting arm 202 through a second hinge 5, and a second end of the second connecting arm 202 is hinged to the moving member 203 through a third hinge 6.

Alternatively, as shown in fig. 4, 6, and 8, at least one of the first connection arm 201 and the second connection arm 202 has a plate shape.

At least one of the first connection arm 201 and the second connection arm 202 is plate-shaped, and it can be understood that: the first connecting arm 201 and the second connecting arm 202 are each plate-shaped; alternatively, one of the first connecting arm 201 and the second connecting arm 202 has a plate shape, and the other has a rod shape.

Thus, when the anchor head 2 is in the unfolded state, the contact area between the base body and the anchor head 2 is favorably increased, and the pulling resistance of the anti-floating anchor rod 100 is favorably further improved.

Of course, in other embodiments, the first connecting arm 201 and the second connecting arm 202 may each have a rod shape.

Optionally, in the closed state, the angle between the first connection arm 201 and the second connection arm 202 is less than 180 °. The first end of the first connecting arm 201 is disposed closer to the rod body 1 than the second end of the first connecting arm 201 in the radial direction of the rod body 1. The second end of the second connecting arm 202 is disposed closer to the rod body 1 than the first end of the second connecting arm 202 in the radial direction of the rod body 1.

In order to make the technical solution of the present application easier to understand, the following describes the technical solution of the present application further by taking the case that the radial direction of the rod body 1 coincides with the inner and outer directions. Wherein, inwards means: the direction adjacent to the center line of the rod body 1 on a plane perpendicular to the center line of the rod body 1 means outwardly: in a direction away from the centre line of the rod body on a plane perpendicular to the centre line of the rod body 1.

For example, in the closed state, the first end of the first connecting arm 201 is provided inside the second end of the first connecting arm 201. The second end of the second connecting arm 202 is provided inside the first end of the second connecting arm 202. As shown in fig. 1, the angle between the first connecting arm 201 and the second connecting arm 202 is α, which is smaller than 180 °.

Thus, when the driving member 3 drives the moving member 203 to move downward, the pressure applied to the second link arm 202 by the moving member 203 generates a component force that moves the first end of the second link arm 202 outward, and the pressure applied to the first link arm 201 by the second link arm 202 generates a separation that moves the second end of the first link arm 201 outward, so that both the second end of the first link arm 201 and the first end of the second link arm 202 move outward, thereby switching the anchor head 2 to the deployed state.

By the above arrangement of the anchor head 2, the anchor head 2 is facilitated to be switched from the closed state to the deployed state when the moving member 203 moves in the direction from the top end 101 to the bottom end 102 of the rod body 1.

Alternatively, in the unfolded state, the angle between the first connection arm 201 and the rod body 1 is 90 ° or less.

For example, as shown in fig. 2, the angle between the first connecting arm 201 and the rod body 1 is β, which is smaller than 90 °.

It will be appreciated that in the process that the angle between the first connecting arm 201 and the rod body 1 is gradually changed from 0 ° to 90 °, the size of the anchor head 2 in the radial direction of the rod body 1 is gradually increased, the pressure applied to the anchor head 2 by the matrix in the direction from the top end 101 to the bottom end 102 of the rod body 1 is gradually increased, and when the angle between the first connecting arm 201 and the rod body 1 is equal to 90 °, the size of the anchor head 2 in the radial direction of the rod body 1 is maximum, the pressure applied to the anchor head 2 by the matrix in the direction from the top end 101 to the bottom end 102 of the rod body 1 is maximum, and the pulling resistance of the anti-floating anchor 100 is maximum. While the size of the anchor head 2 in the radial direction of the shank 1 gradually decreases in the process that the angle between the first connecting arm 201 and the shank 1 gradually changes from 90 ° to 180 °, the pressure applied to the anchor head 2 by the base body in the direction from the top end 101 to the bottom end 102 of the shank 1 gradually decreases.

Therefore, when the first connecting arm 201 and the rod body 1 are set to be 90 ° or less in the unfolded state, the pulling resistance of the anti-floating anchor 100 can be ensured to be high when the displacement of the moving member 203 is small.

Alternatively, the driving member 3 is movably disposed on the rod 1 along the length direction of the rod 1, and the driving member 3 drives the moving member 203 to move along the length direction of the rod 1 by pushing the moving member 203.

For example, as shown in fig. 1 and 3, the driving member 3 is provided on the rod body 1 movably in the up-down direction, and the driving member 3 is provided on the upper side of the moving member 203. When the driving member 3 moves from top to bottom, the downward pushing moving member 203 moves downward, so that the anchor head 2 is switched from the closed state to the open state.

The driving member 3 drives the moving member 203 to move by moving along the length direction of the rod body 1, so that the driving member 3 is convenient to drive the moving member 203 to move.

It should be noted that, before the anti-floating anchor 100 does not reach the preset depth of the base, the anchor head 2 is subjected to the pressure applied by the base along the direction from the bottom end 102 to the top end 101 of the rod body 1, and the anchor head 2 is kept in a closed state under the action of the pressure.

Alternatively, the driving member 3 is screw-coupled with the rod body 1 so that the driving member 3 is moved in the length direction of the rod body 1 by rotating the driving member 3.

Specifically, as shown in fig. 1, the rod body 1 is provided with an external thread 103, the driving member 3 is in threaded connection with the external thread 103, and the driving member 3 can be moved along the length direction of the rod body 1 by rotating the driving member 3.

Thus, only the driving member 3 needs to be screwed, so that the anchor head 2 can be switched from the closed state to the unfolded state, and the driving member 203 is further conveniently driven to move.

When the anti-floating anchor rod 100 is specifically used, after reaching the preset depth of the matrix, a screwing tool can be connected to a drill rod of a drilling machine, the screwing tool can be in rotation-stopping fit with the driving piece 3, the rotation of the screwing tool is driven by rotation of the drill rod, and the driving piece 3 is driven to rotate by the screwing tool, so that the movement of the driving piece 3 along the length direction of the rod body 1 is realized. The screwing tool can be a sleeve, and the sleeve is sleeved on the driving piece 3 and is in anti-rotation fit with the driving piece 3. For example, the driving element 3 is a nut, the inner hole of the sleeve is an inner hexagonal hole, and the inner hexagonal hole is in rotation-stopping fit with the outer peripheral surface of the nut.

Alternatively, the moving member 203 is in a cylindrical shape, and the moving member 203 is movably sleeved on the rod 1 along the length direction of the rod 1.

For example, as shown in fig. 2 and 4 to 8, the moving member 203 has a cylindrical shape, and the moving member 203 is movably sleeved on the rod body 1 in the up-down direction.

Through setting up moving part 203 to the tube-shape, and moving part 203 cover establishes on body of rod 1, the equipment between convenient moving part 203 and the body of rod 1 is favorable to improving anti-floating anchor 100's packaging efficiency, reduces anti-floating anchor 100's cost.

Alternatively, the moving member 203 is engaged with the rod body 1. Specifically, the inner peripheral surface of the moving member 203 is fitted with the outer peripheral surface of the rod body 1. Therefore, the rod body 1 can play a guiding role on the moving member 203, so that the moving member 203 moves along a preset path, which is beneficial to improving the reliability of the anti-floating anchor 100.

Alternatively, the number of the first connecting arms 201 and the second connecting arms 202 is plural, the plural first connecting arms 201 are arranged at intervals along the circumferential direction of the rod body 1, the plural second connecting arms 202 are arranged at intervals along the circumferential direction of the rod body 1, the plural first connecting arms 201 are in one-to-one correspondence with the plural second connecting arms 202, and each first connecting arm 201 is rotationally connected with the corresponding second connecting arm 202.

For example, as shown in fig. 2 and 4, the number of the second connecting arms 202 is four, and the four second connecting arms 202 are uniformly distributed at intervals along the circumferential direction of the rod body 1. Correspondingly, the number of the first connecting arms 201 is four, and the four first connecting arms 201 are uniformly distributed along the circumferential direction of the rod body 1 at intervals. The four first connecting arms 201 are in one-to-one correspondence with the four second connecting arms 202, and the second end of each first connecting arm 201 is rotatably connected with the first end of the corresponding second connecting arm 202.

As another example, as shown in fig. 5 and 6, the number of the second connecting arms 202 is three, and the three second connecting arms 202 are uniformly distributed at intervals along the circumferential direction of the rod body 1. Correspondingly, the number of the first connecting arms 201 is three, and the three first connecting arms 201 are uniformly distributed along the circumferential direction of the rod body 1 at intervals. The three first connecting arms 201 are in one-to-one correspondence with the three second connecting arms 202, and the second end of each first connecting arm 201 is rotatably connected with the first end of the corresponding second connecting arm 202.

As another example, as shown in fig. 7 and 8, the number of the second connecting arms 202 is five, and the five second connecting arms 202 are uniformly distributed at intervals along the circumferential direction of the rod body 1. Correspondingly, the number of the first connecting arms 201 is five, and the five first connecting arms 201 are uniformly distributed along the circumferential direction of the rod body 1 at intervals. The five first connecting arms 201 are in one-to-one correspondence with the five second connecting arms 202, and the second end of each first connecting arm 201 is rotatably connected with the first end of the corresponding second connecting arm 202.

By arranging the first connecting arms 201 and the second connecting arms 202 in a plurality, the size of the anchor head 2 in the radial direction of the rod body 1 is larger when in the unfolded state, which is beneficial to further improving the pulling resistance of the anti-floating anchor 100; moreover, the anchor head 2 is uniformly stressed in the circumferential direction of the rod body 1 in the unfolding state, so that the use reliability of the anti-floating anchor 100 is improved.

Optionally, the rod body 1 is provided with a connecting plate 104, and the first connecting arm 201 is rotatably connected with the connecting plate 104.

For example, as shown in fig. 1 and 3, the bottom end 102 of the rod body 1 is provided with a connecting plate 104, and a plurality of first connecting arms 201 are rotatably connected to the connecting plate 104.

By providing the connection plate 104 on the rod body 1, the connection of the first connection arm 201 with the rod body 1 is facilitated.

Optionally, the rod body 1 is a steel bar or a steel pipe.

Alternatively, as shown in fig. 1 and 3, the top end 101 of the rod 1 is provided with a fastener 7, and the connection of the rod 1 to an underground structure or the like is achieved by using the fastener 7.

Optionally, as shown in fig. 1 and 3, the top end 101 of the rod body 1 is further provided with an anchor 105, and the anchor 105 may be connected with a steel grid or a steel bar of an underground structure or the like.

The construction process of the anti-floating anchor 100 according to the embodiment of the utility model comprises the following steps:

for harder geological conditions such as rock, drilling holes by using a drilling machine; after the drilling hole reaches a preset depth, placing the anti-floating anchor rod into the drilling hole; after the anchor head 2 reaches a preset position, a screwing tool is additionally arranged on a drill rod of the drilling machine, the driving piece 3 is driven to move towards the bottom end 102 by rotation of the drill rod, and the moving piece 203 moves towards the bottom end 102 to enable the anchor head 2 to be switched to a unfolding state.

For weak geological conditions such as soil quality, a propelling tool is connected with a directional drilling machine, the directional drilling machine is utilized to jack the anti-floating anchor rod 100 in a closed state into a preset depth in a soil layer according to a required angle, and after the anchor head 2 reaches a preset position, the propelling is stopped; the position of the propelling tool is maintained to be unchanged, a screwing tool is additionally arranged on a drill rod of the directional drilling machine, the driving piece 3 is driven to move towards the bottom end 102 by rotation of the drill rod, and the moving piece 203 moves towards the bottom end 102 to enable the anchor head 2 to be switched to a unfolding state.

After the anti-floating anchor 100 is in the deployed state, the gap between the anti-floating anchor 100 and the borehole is filled by pouring fine stone concrete.

According to the anti-floating anchor 100 disclosed by the embodiment of the utility model, the traditional friction force is changed into pressure by changing the providing mode of the anti-pulling force, so that the anti-pulling force of the anti-floating anchor 100 is greatly improved. Specifically, after the anchor head 2 is in the unfolded state, the anchor head 2 compresses the matrix (such as soil body) under the action of the pulling force towards the top end 101, so as to improve the mechanical properties of the soil body, and the anti-pulling force is provided for the anti-floating anchor rod 100 by virtue of the compact holding force soil formed by the compression of the anchor head 2. Due to the large effective area of the anchor head 2, this dense holding force soil will be considerable against the resistance of the floating bolt 100 and may provide sufficient resistance to pullout.

The anti-floating anchor 100 of the embodiment of the utility model is suitable for structures requiring consideration of anti-floating influence in underground spaces such as open-cut tunnels, underground-cut tunnels, working wells, top-pipe tunnels, shield tunnels and the like. The method can also be used for structures such as basements, underground garages and the like which need to consider the anti-floating influence.

As shown in fig. 9 to 12, the anchor rod foundation 1000 of the embodiment of the present utility model includes a foundation body 200 and an anti-floating anchor rod 100. The anti-floating anchor 100 is the anti-floating anchor 100 according to any of the above embodiments, and the top end 101 of the anti-floating anchor 100 is connected to the base body 200.

The anti-floating anchor 100 according to the embodiment of the utility model has the advantages of high pulling resistance, etc., so the anchor foundation 1000 according to the embodiment of the utility model has the advantages of low manufacturing cost, etc.

For example, as shown in fig. 9 to 12, the anti-floating anchor 100 of the embodiment of the present utility model is used in a cable tunnel, and the gravity of the cable tunnel itself is insufficient to resist the buoyancy of groundwater. Specifically, the cable tunnel includes a tunnel 300, a manhole 400, a ladder stand 500, and a manhole cover 600, the manhole 400 being in communication with the tunnel 300, the ladder stand 500 being disposed within the manhole 400 and extending into the tunnel 300, the manhole cover 600 being openably and closably installed at an orifice of the manhole 400. The top end 101 of the anti-floating anchor rod 100 is connected with the structural layer of the tunnel 300, the bottom end 102 of the anti-floating anchor rod 100 is anchored in a matrix (such as soil body), the anti-floating anchor rod 100 is utilized to resist the buoyancy generated by groundwater to the cable tunnel, and the structural layer of the tunnel 300 forms the foundation body 200. The structural layer of the tunnel 300 may be a reinforced concrete layer.

Optionally, the structural layer of the tunnel 300 is reserved with a connecting hole, and the top end 101 of the anti-floating anchor 100 passes through the connecting hole and is connected with the fastener 7; the anchors 105 are connected with steel grids or rebars of the structural layers of the tunnel 300 to realize the connection of the anti-floating anchors 100 with the structural layers of the tunnel 300. Wherein the fastener 7 may be a nut.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those skilled in the art without departing from the scope of the utility model.

Claims (10)

1. An anti-floating anchor, comprising:

a rod body;

the anchor head comprises a first connecting arm, a second connecting arm and a moving piece, wherein the first connecting arm is rotationally connected with the rod body, the first connecting arm is rotationally connected with the second connecting arm, the second connecting arm is rotationally connected with the moving piece, and the moving piece is movable along the length direction of the rod body;

the driving piece is arranged on the rod body and is used for driving the moving piece to move along the length direction of the rod body so that the anchor head can be switched between a closed state and an unfolding state.

2. An anti-floating bolt according to claim 1, wherein the driving member is movably provided on the rod body in a longitudinal direction of the rod body, and the driving member drives the moving member to move in the longitudinal direction of the rod body by pushing the moving member.

3. An anti-float bolt according to claim 2 wherein the driver is threadably connected to the rod body to move the driver along the length of the rod body by rotating the driver.

4. An anti-floating bolt according to claim 3, wherein the moving member is cylindrical and is movably sleeved on the rod body along the length direction of the rod body.

5. The anti-floating bolt according to claim 1, wherein the number of the first connecting arms and the second connecting arms is plural, the plural first connecting arms are arranged at intervals along the circumferential direction of the bolt body, the plural second connecting arms are arranged at intervals along the circumferential direction of the bolt body, the plural first connecting arms are in one-to-one correspondence with the plural second connecting arms, and each first connecting arm is rotatably connected with the corresponding second connecting arm.

6. An anti-floating bolt according to claim 1, wherein the rod body is provided with a connecting plate, and the first connecting arm is rotatably connected with the connecting plate.

7. The anti-floating bolt according to claim 1, wherein at least one of the first and second connecting arms is plate-shaped.

8. The anti-floating bolt according to any one of claims 1 to 7, wherein the second connecting arm is provided on a side of the first connecting arm near the top end of the rod body, a first end of the first connecting arm is rotatably connected to the bottom end of the rod body, a second end of the first connecting arm is rotatably connected to the first end of the second connecting arm, and a second end of the second connecting arm is rotatably connected to the moving member.

9. The anti-float bolt of claim 8, wherein in the closed condition the angle between the first and second connecting arms is less than 180 ° and the first end of the first connecting arm is disposed more adjacent the shaft than the second end of the first connecting arm in the radial direction of the shaft and the second end of the second connecting arm is disposed more adjacent the shaft than the first end of the second connecting arm in the radial direction of the shaft; and/or

In the unfolded state, the included angle between the first connecting arm and the rod body is smaller than or equal to 90 degrees.

10. An anchor foundation comprising:

a base body; and

an anti-floating anchor according to any one of claims 1 to 9, wherein the top end of the anti-floating anchor is connected to the foundation body.

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