Anti-floating anchor rod elevation control auxiliary device and construction method

Abstract

The invention provides an anti-floating anchor rod elevation control auxiliary device and a construction method, the device comprises an anchoring base and an anchor rod mounting disc, the anchoring base and the anchor rod mounting disc are respectively provided with a grouting hole and an anchor rod mounting hole, the positions of the grouting hole and the anchor rod mounting hole correspond to each other, and the inner diameter of the grouting hole is larger than that of the anchor rod mounting hole; the anchoring base and the anchor rod mounting disc are connected through an adjusting arm, and the adjusting arm is used for adjusting the distance between the anchoring base and the anchor rod mounting disc. According to the method, the anti-floating anchor rod can be accurately adjusted to the preset elevation before pile hole pouring, the anti-floating anchor rod can be fixed in the pile hole pouring and curing process, floating and deviation of the anti-floating anchor rod are prevented, the accuracy of the actual elevation of the anti-floating anchor rod after construction is completed is improved, and the construction efficiency is improved. The problems that in the prior art, due to the fact that the elevations of the anti-floating anchor rods are inconsistent after construction, secondary treatment is needed, and special lengthened screws and matched sleeves are purchased are solved, the construction efficiency is improved, and the construction cost is reduced; in addition, the device can be repeatedly assembled and disassembled and used in a turnover mode, and the construction economy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an anti-floating anchor rod elevation control auxiliary device and a construction method. Background Art

[0002] Due to the large area of ​​the basement structural plate and the design of only 20 anti-floating anchor rods, the construction quality of the anti-floating anchor rods is of vital importance. Not only must the material quality, anchoring length of the anti-floating anchor rods, rock penetration depth, bladder expansion, grouting density and pressure be strictly required to meet the design and specification requirements, but the exposed length of the exposed screw rod must also be guaranteed to ensure the application of prestress and reliable anchoring to the raft foundation.

[0003] According to previous construction experience, the reserved settlement allowance used in the construction of anti-floating anchor rods has great uncertainty, and there is a common quality defect that the exposed length of the anti-floating anchor rods is too large or too small. The construction method of using the reserved settlement allowance for anti-floating anchor rods, after the cement slurry is injected at medium pressure, is likely to cause the top elevation of the anti-floating anchor rod to be inconsistent after the construction is completed. Anti-floating anchor rods with too short exposed lengths must purchase special screws and matching sleeves for connection, which not only costs a lot of money, but also affects the construction progress of the next process. Therefore, it is urgent to improve the existing anti-floating anchor rod elevation control process. Summary of the invention

[0004] The object of the present invention is to provide an anti-floating anchor rod elevation control auxiliary device and a construction method to solve the above-mentioned problems.

[0005] The technical solution adopted by the present invention is: an anti-floating anchor elevation control auxiliary device, which includes an anchor base and an anchor mounting plate, and the anchor base and the anchor mounting plate are respectively provided with grouting holes and anchor mounting holes with corresponding positions, and the inner diameter of the grouting hole is larger than the inner diameter of the anchor mounting hole; the anchor base and the anchor mounting plate are connected by an adjusting arm, and the adjusting arm is used to adjust the distance between the two.

[0006] Furthermore, the anchoring base includes an anti-pullout anchor, a panel and a clamp. The panel is provided with an arc groove, and several arc grooves on the panel are assembled into the grouting hole; the clamp is located at the assembly position of the panel and is used to fix the adjacent panel; the anti-pullout anchor is fixedly connected to the panel, and an anchor cone and an anti-pullout cone are provided at the bottom end thereof, and the anti-pullout cones are evenly distributed around the circumference of the anchor cone.

[0007] Furthermore, the clamp 1 includes a C-shaped block 1 and a locking bolt 1, the splicing parts of adjacent panels 1 extend into the C-shaped block 1, and the C-shaped block 1 is connected to different panels 1 through a plurality of locking bolts 1.

[0008] Furthermore, the anti-pullout anchor also includes an outer sleeve, an operating rod, a limit support block, a limit pressure block and a mounting block, the operating rod is movably inserted into the outer sleeve and is threadedly connected to the internal threaded sleeve at the top of the outer sleeve; the limit support block is fixedly arranged at the bottom end of the operating rod; the mounting block is located above the limit support block and movably mounted on the operating rod; the limit pressure block is located above the mounting block and is fixedly connected to the operating rod; a retracting hole is provided on the side wall of the outer sleeve, a horizontal rotating shaft is provided on the mounting block, the blunt end of the anti-pullout cone is rotatably connected to the horizontal rotating shaft, and the tip of the anti-pullout cone at least partially extends out of the retracting hole. Furthermore, the anchor mounting plate includes a flange nut, two panels and two clamps. The two panels are provided with two arc grooves. Several of the arc grooves on the two panels are assembled into the anchor mounting hole. The two clamps are located at the assembled position of the two panels and are used to fix the adjacent two panels. Two groups of flange nuts are coaxially arranged at the two ends of the anchor mounting hole, respectively abutting the top and bottom surfaces of the two panels.

[0009] Furthermore, the second clamp includes a second C-shaped block and two locking bolts, the joint parts of the adjacent two panels extend into the second C-shaped block, and the second C-shaped block is connected to different two panels through a plurality of the second locking bolts.

[0010] Furthermore, the adjusting arm is a basket bolt, and a plurality of the adjusting arms are evenly distributed around the circumference of the anchor base, and the top and bottom ends are respectively connected to the anchor base and the anchor rod mounting plate.

[0011] Furthermore, a plurality of vertical ear plates are provided on the top surface of the anchor base, and a plurality of horizontal ear plates are provided on the side surface of the anchor rod mounting plate, and the vertical ear plates and the horizontal ear plates are rotatably connected to the basket bolts respectively.

[0012] The technical solution of the present invention also includes: a construction method using the anti-floating anchor rod elevation control auxiliary device as described above, which includes the steps of:

[0013] Determine the installation position of the anchor base according to the pile hole, and fix the anchor base on the foundation around the pile hole;

[0014] Pass the anti-floating anchor rod through the anchor rod installation hole and fix it to the anchor rod installation plate;

[0015] Transfer the anti-floating anchor rod and the anchor rod mounting plate to the top of the anchor base, and connect the anchor rod mounting plate and the anchor base using an adjusting arm;

[0016] Adjust the length of the adjusting arm to change the height of the anchor rod mounting plate to meet the elevation requirements;

[0017] After the pile hole is poured and solidified, the adjusting arm, anchor rod mounting plate and anchor base are removed in turn.

[0018] Furthermore, the grouting hole and the pile hole are coaxially distributed and have the same inner diameter.

[0019] The beneficial effects of the present invention are as follows: the device can not only accurately adjust the anti-floating anchor rod to a preset elevation before the pile hole is poured, but also fix the anti-floating anchor rod during the pouring and curing process of the pile hole to prevent it from floating up and shifting, so that the accuracy of the actual elevation of the anti-floating anchor rod after the construction is achieved, and the problems of the need for secondary treatment, purchase of special growth screws and matching sleeves caused by inconsistent elevations of the anti-floating anchor rods after construction in traditional technologies are reduced, so that the construction efficiency is improved and the construction cost is reduced. In addition, the device can be repeatedly installed and disassembled, and used in a turnover manner, so as to improve the economic efficiency of the construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front view of an embodiment of the present invention;

[0021] Figure 2 is a top view of an anchor base and an anchor rod mounting plate in an embodiment of the present invention;

[0022] Figure 3 is a structural diagram of a clamp 1 and a clamp 2 in an embodiment of the present invention;

[0023] Figure 4 is a longitudinal section view of an anti-pullout anchor in an embodiment of the present invention;

[0024] Figure 5 The embodiment of the present invention is attached Figure 4 A magnified view of the structure at center A;

[0025] Figure 6 1 is a top view of a mounting block and an anti-extraction cone in an embodiment of the present invention.

[0026] In the figure:

[0027] 100, anchor base; 110, anti-pullout anchor nail; 111, anchor cone; 112, anti-pullout cone; 113, outer sleeve; 113a, retractable hole; 114, operating rod; 115, limit support block; 116, limit pressure block; 117, mounting block; 118, horizontal shaft; 119, internal thread sleeve; 120, puzzle plate one; 121, arc groove one; 130, fixture one; 131, C-shaped block one; 132, locking bolt one;

[0028] 200, anchor rod mounting plate; 210, flange nut; 220, second jigsaw plate; 221, second arc groove; 230, second clamp; 231, second C-shaped block; 232, second locking bolt;

[0029] 300, adjusting arm;

[0030] 400, grouting hole;

[0031] 500, anchor rod mounting hole;

[0032] 600, vertical lugs;

[0033] 700, horizontal lugs. DETAILED DESCRIPTION

[0034] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0036] Reference Figure 1-6 An embodiment of the present invention provides an anti-floating anchor elevation control auxiliary device, which includes an anchor base 100, an anchor mounting plate 200 and an adjusting arm 300. The anchor base 100 is located below the anchor mounting plate 200. A grouting hole 400 is provided on the anchor base 100. The anchor mounting plate 200 is provided with an anchor mounting hole 500 coaxially distributed with the grouting hole 400. The inner diameter of the grouting hole 400 is larger than the inner diameter of the anchor mounting hole 500. The two ends of the adjusting arm 300 are respectively connected to the anchor base 100 and the anchor mounting plate 200 for adjusting the distance between the two.

[0037] When the device is in use, first determine the installation position of the anchor base 100 according to the pile hole, ensure that the grouting hole 400 is coaxially distributed with the pile hole and has the same inner diameter, and fix the anchor base 100 on the foundation around the pile hole; pass the anti-floating anchor rod through the anchor rod installation hole 500 and fix it to the anchor rod installation plate 200; then transfer the anti-floating anchor rod and the anchor rod installation plate 200 together to the top of the anchor base 100, connect the anchor rod installation plate 200 and the anchor base 100 with the adjusting arm 300, adjust the length of the adjusting arm 300 to change the height of the anchor rod installation plate 200, and then change the height of the top of the anti-floating anchor rod extending out of the pile hole; after the elevation of the anti-floating anchor rod is accurately adjusted, cast the pile hole, and after solidification, remove the adjusting arm 300, the anchor rod installation plate 200 and the anchor base 100 in turn.

[0038] The device can not only accurately adjust the anti-floating anchor rod to the preset elevation before pouring the pile hole, but also fix the anti-floating anchor rod during the pouring and curing process of the pile hole to prevent it from floating and shifting, thereby ensuring the accuracy of the actual elevation of the anti-floating anchor rod after construction, reducing the problems in traditional technologies such as the need for secondary processing and the purchase of special screws and matching sleeves due to inconsistent elevations of the anti-floating anchor rods after construction, thereby improving construction efficiency and reducing construction costs.

[0039] Reference Figure 1-3 The anchor base 100 includes an anti-pullout anchor 110, a panel 120 and a clamp 130. The panel 120 is provided with an arc groove 121, and the arc grooves 121 on several panels 120 are assembled into a grouting hole 400; the clamp 130 is located at the joint position of the panel 120, and is used to fix adjacent panels 120; the anti-pullout anchor 110 is fixedly connected to the panel 120, and an anchor cone 111 and an anti-pullout cone 112 are provided at the bottom end thereof, and the anti-pullout cone 112 is evenly distributed around the circumference of the anchor cone 111, and the tip of the anchor cone 111 faces downward, and can fix the panel 120 when it is inserted into the foundation. The tip of the anti-pullout cone 112 faces horizontally or obliquely upward, and is used to resist the floating phenomenon of the anti-floating anchor rod during the pouring of the pile hole, so as to prevent the anchor base 100 from loosening and moving upward, thereby causing the anti-floating anchor rod to be dislocated.

[0040] The number of the above-mentioned panels 120 and the shape of the arc groove 121 can be configured according to specific needs. For example, in this embodiment, two panels 120 are constructed to facilitate installation and disassembly, and semicircular arc grooves 121 are respectively dug on the opposite sides of the two panels 120. The two semicircular arc grooves 121 are assembled into a circular grouting hole 400 for pile hole grouting. The clamp 130 is constructed to include a C-shaped block 131 and a locking bolt 132. The joint part of the two panels 120 extends into the C-shaped block 131. The locking bolt 132 passes through the top plate of the C-shaped block 131, the panel 120 and the bottom plate of the C-shaped block 131 in the vertical direction, and then is locked; to ensure the connection stability, at least one locking bolt 132 is respectively arranged on both sides of the joint of the two panels 120.

[0041] Reference Figure 4-6The anti-pullout anchor 110 also includes an outer sleeve 113, an operating rod 114, a limiting support block 115, a limiting pressure block 116 and a mounting block 117. The operating rod 114 is movably inserted into the outer sleeve 113 and is threadedly connected to an internal threaded sleeve 119 at the top of the outer sleeve 113; the limiting support block 115 is fixedly arranged at the bottom end of the operating rod 114; the mounting block 117 is located above the limiting support block 115 and is movably sleeved on the operating rod 114; the limiting pressure block 116 is located above the mounting block 117 and is fixedly connected to the operating rod 114; a retracting hole 113a is opened on the side wall of the outer sleeve 113, and a horizontal rotating shaft 118 is provided on the mounting block 117. The blunt end of the anti-pullout cone 112 is rotatably connected to the horizontal rotating shaft 118, and the tip of the anti-pullout cone 112 at least partially extends out of the retracting hole 113a. The anchor cone 111 is arranged at the bottom of the outer sleeve 113, and can be welded or integrally formed with the outer sleeve 113. The anchor cone 111 can be completely solid, or the blunt end (i.e., the top end) can be partially hollow and connected to the inner cavity of the outer sleeve 113, and the retracting hole 113a can be adaptively constructed on the side wall of the hollow part of the top end of the anchor cone 111. It can be constructed according to actual needs, and no more specific limitations are made here.

[0042] When the operating rod 114 is rotated to lift the limiting support block 115, the mounting block 117 moves upward. Due to the pressure from the top wall of the retracting hole 113a and the lifting force from the mounting block 117, the blunt end of the anti-extraction cone 112 rotates around the horizontal rotation axis 118, and its tip also gradually rotates and slides more outside the retracting hole 113a, producing an anti-extraction effect; when installing or removing the anti-extraction anchor 110 in the foundation, the operating rod 114 is rotated in the opposite direction to release the limiting support block 115, and the limiting pressure block 116 moves downward accordingly, generating downward pressure on the mounting block 117, driving the mounting block 117 to move downward, and the blunt end of the anti-extraction cone 112 rotates in the opposite direction around the horizontal rotation axis 118, and its tip also gradually rotates in the opposite direction and retracts more into the retracting hole 113a, making the outer wall of the outer sleeve 113 gradually smooth, which is convenient for inserting into the foundation or being extracted from the foundation.

[0043] Reference Figure 1-3The anchor mounting plate 200 includes a flange nut 210, a second panel 220 and a second clamp 230. The second panel 220 is provided with an arc groove 221. The arc grooves 221 on several second panels 220 are assembled into an anchor mounting hole 500. The second clamp 230 is located at the joint position of the second panel 220 and is used to fix adjacent second panels 220. A group of flange nuts 210 are respectively arranged at the top and bottom ends of the anchor mounting hole 500. Two groups of flange nuts 210 are coaxially arranged at both ends of the anchor mounting hole 500, respectively abutting the top and bottom surfaces of the second panel 220. The flange nut 210 is adapted to the thread of the anti-floating anchor rod, and the anti-floating anchor rod is slidably inserted into the anchor rod mounting hole 500. The flange nuts 210 at both ends of the anchor rod mounting hole 500 are sleeved on the anti-floating anchor rod, and the second plate 220 and the anti-floating anchor rod are fixed by the pressing effect with the top and bottom surfaces of the second plate 220. This can not only improve the installation efficiency, but also ensure the locking effect, thereby ensuring the elevation accuracy of the anti-floating anchor rod.

[0044] The number of the above-mentioned panels 220 and the shape of the arc grooves 221 can be configured according to specific needs. For example, in this embodiment, in order to facilitate installation and disassembly, two panels 220 are constructed, and semicircular arc grooves 221 are respectively dug on the opposite sides of the two panels 220. The two semicircular arc grooves 221 are assembled into a circular anchor rod installation hole 500 for installing anti-floating anchor rods. The clamp 230 is constructed to include a C-shaped block 231 and a locking bolt 232. The joint part of the two panels 220 extends into the C-shaped block 231. The locking bolt 232 passes through the top plate of the C-shaped block 231, the panel 220 and the bottom plate of the C-shaped block 231 in the vertical direction, and then is locked; to ensure the connection stability, at least one locking bolt 232 is respectively arranged on both sides of the joint of the two panels 220.

[0045] Reference Figure 1 , the adjustment arm 300 can use a basket bolt, and a number of them are evenly arranged around the circumference of the anchor base 100, and the top and bottom ends of each adjustment arm 300 are respectively connected to the anchor base 100 and the anchor rod mounting plate 200. The evenly distributed adjustment arms 300 can ensure the coaxiality of the grouting hole 400 and the anchor rod mounting hole 500. The length of the basket bolt is adjustable. By adjusting the length of each basket bolt, the height of the anchor rod mounting plate 200 and the anti-floating anchor rod can be changed to meet the construction requirements. If necessary, a level meter can be placed on the second puzzle board 220. When changing the length of each adjustment arm 300, the verticality of the anti-floating anchor rod can be judged by observing the level meter.

[0046] Adaptively, a plurality of vertical ear plates 600 corresponding to the adjusting arm 300 may be provided on the top surface of the anchor base 100, and a plurality of horizontal ear plates 700 corresponding to the adjusting arm 300 may be provided on the side of the anchor rod mounting plate 200, and the vertical ear plates 600 and the horizontal ear plates 700 are respectively rotatably connected to the adjusting arm 300, i.e., basket bolts.

[0047] Compared with the prior art, the beneficial effect of the present invention is that the device can not only accurately adjust the anti-floating anchor rod to the preset elevation before the pile hole is poured, but also fix the anti-floating anchor rod during the pouring and curing process of the pile hole to prevent it from floating and shifting, so that the actual elevation of the anti-floating anchor rod after the construction is accurate, and reduce the problems of the traditional technology that the elevation of the anti-floating anchor rod is inconsistent after the construction, which requires secondary processing, purchase of special growth screws and matching sleeves, etc., improves construction efficiency and construction quality, and reduces construction costs. In addition, the device can be repeatedly installed and disassembled, and used in a turnover manner, which improves the economic efficiency of construction.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0049] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An anti-floating anchor elevation control auxiliary device, characterized in that: It includes an anchor base and an anchor rod mounting plate, wherein the anchor base and the anchor rod mounting plate are respectively provided with grouting holes and anchor rod mounting holes corresponding to positions, and the inner diameter of the grouting hole is larger than the inner diameter of the anchor rod mounting hole; the anchor base and the anchor rod mounting plate are connected by an adjusting arm, and the adjusting arm is used to adjust the distance between the two.

2. The anti-floating anchor elevation control auxiliary device according to claim 1 is characterized in that: The anchoring base includes an anti-pullout anchor, a panel and a clamp. The panel is provided with an arc groove, and several arc grooves on the panel are assembled into the grouting hole. The clamp is located at the assembly position of the panel and is used to fix the adjacent panel. The anti-pullout anchor is fixedly connected to the panel, and an anchor cone and an anti-pullout cone are provided at the bottom end. The anti-pullout cones are evenly distributed around the circumference of the anchor cone.

3. The anti-floating anchor elevation control auxiliary device according to claim 2 is characterized in that: The clamp 1 includes a C-shaped block 1 and a locking bolt 1, the joint parts of adjacent panels 1 extend into the C-shaped block 1, and the C-shaped block 1 is connected to different panels 1 through a plurality of locking bolts 1.

4. The anti-floating anchor elevation control auxiliary device according to claim 2 is characterized in that: The anti-pullout anchor also includes an outer sleeve, an operating rod, a limit support block, a limit pressure block and a mounting block, the operating rod being movably inserted into the outer sleeve and being threadedly connected to an internal threaded sleeve at the top of the outer sleeve; the limit support block is fixedly arranged at the bottom end of the operating rod; the mounting block is located above the limit support block and movably sleeved on the operating rod; the limit pressure block is located above the mounting block and is fixedly connected to the operating rod; a retracting hole is provided on the side wall of the outer sleeve, a horizontal rotating shaft is provided on the mounting block, the blunt end of the anti-pullout cone is rotatably connected to the horizontal rotating shaft, and the tip of the anti-pullout cone at least partially extends out of the retracting hole.

5. The anti-floating anchor elevation control auxiliary device according to claim 1 is characterized in that: The anchor rod mounting plate includes a flange nut, two panels and two clamps. The two panels are provided with two arc-shaped grooves. Several of the arc-shaped grooves on the two panels are assembled into the anchor rod mounting hole. The two clamps are located at the assembled position of the two panels and are used to fix the adjacent two panels. Two groups of flange nuts are coaxially arranged at the two ends of the anchor rod mounting hole, respectively abutting the top and bottom surfaces of the two panels.

6. The anti-floating anchor elevation control auxiliary device according to claim 5 is characterized in that: The second clamp includes a second C-shaped block and two locking bolts. The joint parts of the adjacent two panels extend into the second C-shaped block. The second C-shaped block is connected to different two panels through a plurality of the second locking bolts.

7. The anti-floating anchor elevation control auxiliary device according to any one of claims 1 to 6, characterized in that: The adjusting arm is a basket bolt, and a plurality of the adjusting arms are evenly distributed around the circumference of the anchor base, and the top and bottom ends are respectively connected to the anchor base and the anchor rod mounting plate.

8. The anti-floating anchor elevation control auxiliary device according to claim 7, characterized in that: The top surface of the anchor base is provided with a plurality of vertical ear plates, and the side surface of the anchor rod mounting plate is provided with a plurality of horizontal ear plates, and the vertical ear plates and the horizontal ear plates are rotatably connected to the basket bolts respectively.

9. A construction method using the anti-floating anchor elevation control auxiliary device according to any one of claims 1 to 8, characterized in that: Includes steps: Determine the installation position of the anchor base according to the pile hole, and fix the anchor base on the foundation around the pile hole; Pass the anti-floating anchor rod through the anchor rod installation hole and fix it to the anchor rod installation plate; Transfer the anti-floating anchor rod and the anchor rod mounting plate to the top of the anchor base, and connect the anchor rod mounting plate and the anchor base using an adjusting arm; Adjust the length of the adjusting arm to change the height of the anchor rod mounting plate to meet the elevation requirements; After the pile hole is poured and solidified, the adjusting arm, anchor rod mounting plate and anchor base are removed in turn.

10. The construction method using the anti-floating anchor elevation control auxiliary device according to claim 9, characterized in that: The grouting hole and the pile hole are coaxially distributed and have the same inner diameter.

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