Settling winged anchor backing plate for construction

Abstract

The present invention discloses a sunken winged anchor backing plate for construction, which is applied to an anti-corrosion and anti-seepage anchor rod structure for construction. The body of the sunken winged anchor backing plate is in a cylindrical structure, and the body includes a cylinder head part, a cylinder body part, a cylinder tail part, an inner hole part and a plurality of reinforcing wing plates; the cylinder head part is arranged at the uppermost part of the body; the cylinder body part is coaxially connected to the lower part of the cylinder head part; the cylinder tail part is coaxially connected to the lower part of the cylinder body part; wherein the outer dimensions of the cylinder head part, the cylinder body part and the cylinder tail part gradually decrease; the inner hole part is coaxially arranged on the body with the cylinder head part, the cylinder body part and the cylinder tail part; and the plurality of reinforcing wing plates are evenly spaced along the axial direction and are arranged around the outer wall of the cylinder tail part. It can solve the problem of upward seepage of underground foundation water.

Description

Technical Field

[0001] The invention relates to a sinking anchor pad with wings for construction. Background Art

[0002] Based on the huge demand for anti-floating anchor rods in the market and the fact that they belong to the category of prestressed technology, the main research and development contents and key technical directions are as follows:

[0003] 1. Improve the pull-out force and anti-interference stability of the anchor body of the prestressed anchor rod: The main structure design of the anchor rod adopts the most commonly used and most stable anchoring method in the prestressed anchoring technology, that is, the extrusion sleeve cooperates with the extrusion spring through high-pressure extrusion bite mode, and the rod body parent material adopts UPS-15.2-1860-JG / T161-2016 unbonded steel strand. Without considering the concrete strength of the pile body, the anchoring performance of the extrusion form anchoring meets the requirements of ≥95% in GB / T14370-2015, which is more than 2 times the strength required by the anchor rod design. The use of unbonded steel strand has large pull-out force and good anti-interference stability under stress structure, and also solves the anti-corrosion problem of the busbar.

[0004] 2. Solve the problem of underground foundation water leakage through the anchor structure or the cracks between the concrete and the structure: Clause 7.5.10 of the JGJ476-2019 standard has different requirements for the waterproof level of the connection between the anchor and the underground foundation structure. There are three places where leakage occurs in the anchor structure:

[0005] 1) The fixed end is the most important leakage point, because the outer protective layer (plastic sheath) of the steel strand needs to be removed at the extrusion sleeve and the steel strand, so an exposed leakage point is formed at the end, and groundwater will seep from the end steel strand seam and the surface of the steel strand.

[0006] 2) The second leakage point is the connection between the upper part of the anchor rod and the raft or bottom plate of the building foundation, that is, the "waterstop steel plate part" in the structural drawings. The leakage point here mainly occurs at the junction of the unbonded steel strand and the pile concrete. The leakage method is: underground foundation water rises along the cracks between the plastic jacket of the unbonded steel strand and the concrete through the corresponding water pressure.

[0007] 3) The third leakage location is at the top of the anchor rod: the anchoring location of the anchor plate and the anchor steel strand. The anchoring connection is similar to the fixed end, and the outer plastic layer of the unbonded steel strand also needs to remove the surface sheath due to anchoring needs, so a leakage point appears at this connection.

[0008] In order to meet the requirements for anchor anti-corrosion design in Clause 7.5.9 of the JGJ476-2019 standard, a design scheme that comprehensively considers leakage and anti-corrosion compatibility during the initial design planning of the anchor becomes the technical key.

[0009] In the construction of some existing technologies, it is found that a large number of anti-floating anchor piles have underground foundation water seeping up along the steel strands after the bottom slab of the concrete is poured. The reasons are as follows:

[0010] 1. The skin PE pipe of the main material of the anti-floating anchor, the unbonded steel strand, is damaged during the construction process. The underground foundation water will penetrate into the damaged opening of the unbonded steel strand through the cracks in the pile foundation concrete and then seep up through the gaps generated by the stranding of the steel strands;

[0011] 2. The outer surface of the skin PE pipe of the main material (unbonded steel strand) is smooth and has poor adhesion to the concrete, causing gaps. The underground foundation water will also seep up along its cracks.

[0012] For example, at the joint between the installation position of the anchor backing plate (steel plate) of some existing technologies and the upper plane of the bottom slab under the surface layer, and the height of the anchor is 50 mm, plus the working clip and the remaining 20 mm after the steel strand is tensioned and locked, the total height is 70 mm. The total height of the surface layer concrete pouring is 100 mm. Therefore, the thickness of the water stop left above the anchor is only 30 mm, which cannot solve the problem of the seepage of the underground foundation water.

[0013] The surface layer is directly used as the surface layer of the underground layer. Once water seeps, it will directly affect the use of the underground layer. The 30-mm seepage thickness also brings considerable difficulties to the subsequent water-stop construction.

[0014] The information disclosed in this background art section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of implication that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Invention

[0015] The purpose of the present invention is to provide a settlement type winged anchor backing plate for buildings, which can well solve the problem of the seepage of the underground foundation water of the anti-floating anchor pile along the steel strand.

[0016] To achieve the above object, the present invention provides a sunken winged anchor backing plate for construction, which is applied to an anti-corrosion and anti-seepage anchor rod structure for construction. The anti-corrosion and anti-seepage anchor rod structure includes a tension end anchor assembly at the top of multiple steel strands arranged in the anchor rod hole and a pre-anchoring carrier assembly at the bottom of the multiple steel strands, as well as a connecting pipe and a water stop steel ring assembly below the tension end anchor assembly. The sunken winged anchor backing plate is arranged in the tension end anchor assembly. The body of the sunken winged anchor backing plate is in a cylindrical structure, and the body includes a barrel head, a barrel body, a barrel tail, an inner hole part, and multiple strengthening wing plates; the barrel head is arranged at the uppermost part of the body; the barrel body is coaxially connected to the lower part of the barrel head; the barrel tail is coaxially connected to the lower part of the barrel body; wherein the outer dimensions of the barrel head, the barrel body, and the barrel tail gradually decrease; the inner hole part is coaxially arranged on the body with the barrel head, the barrel body, and the barrel tail; multiple strengthening wing plates are evenly spaced along the axial direction and are arranged in a ring on the outer wall of the barrel tail.

[0017] In a preferred embodiment, the inner hole part has a stepped hole structure. The inner hole part includes a first hole section, a second hole section, and a third hole section corresponding to the barrel head, the barrel body, and the barrel tail, and the inner hole dimensions of the first hole section, the second hole section, and the third hole section gradually decrease.

[0018] In a preferred embodiment, the barrel body, the barrel tail, the first hole section, the second hole section, and the third hole section all include a taper from top to bottom, and the taper of the barrel body is the same as that of the second hole section.

[0019] In a preferred embodiment, the inner hole depths of the first hole section, the second hole section, and the third hole section gradually increase.

[0020] In a preferred embodiment, the outer dimension of the strengthening wing plate is larger than the outer dimension of the barrel tail, and the thickness of each strengthening wing plate gradually thins from the root of the upper surface to the outer edge.

[0021] In a preferred embodiment, the body further includes multiple strengthening wing plates and multiple wing plate strengthening ribs; multiple bottom plate strengthening ribs extend along the axial direction and are evenly distributed in a ring on the outer wall of the barrel body; multiple wing plate strengthening ribs extend along the axial direction and are evenly distributed in a ring on the outer wall of the barrel tail and are located between two strengthening wing plates.

[0022] In a preferred embodiment, the number of multiple bottom plate strengthening ribs is the same as that of multiple wing plate strengthening ribs, and when viewed along the axis direction, the multiple bottom plate strengthening ribs and the multiple wing plate strengthening ribs are arranged at intervals.

[0023] In a preferred embodiment, the cross-section of the top of each bottom plate strengthening rib along the radial direction is triangular, and the cross-section along the axial direction is a regular trapezoid.

[0024] In a preferred embodiment, the bottom surface of the outer wall of the barrel head and the outer wall of the barrel body are in a slope transition.

[0025] In a preferred embodiment, the body further includes a first mark, a second mark, a third mark, and a plurality of engraved lines. The first mark, the second mark, and the third mark are all arranged on the connecting surface between the first hole section and the second hole section, and the marks are all arranged in a centered circular shape. The plurality of engraved lines are evenly distributed and arranged radially extending on the upper end surface of the barrel head, and the number and positions of the plurality of engraved lines correspond one-to-one with the number and positions of the plurality of bottom plate stiffeners.

[0026] Compared with the prior art, the settlement type winged anchor backing plate for construction of the present invention has the following beneficial effects: The settlement type winged anchor backing plate of the present invention is made of HT250 gray iron or 45# steel. Under the relative acting force of the steel strand of the anchor, the bearing plate meets the requirements of bearing pressure and anti-interference under the support of concrete; the number of wing rings is increased or decreased according to the bearing capacity of the anchor backing plate under the calculation of bearing pressure and anti-interference ability under the support of concrete, etc.; the settlement type anchor backing plate is cast with gray iron and its surface is rough. With the setting of stiffeners and alignment blocks, it can better adhere to concrete and also solve the problem of ring seepage of foundation water through the surface of the anchor backing plate. Through the settlement type structure, the tension end anchor body as a whole descends and maintains the surface layer thickness within the bottom plate layer, changing the situation that in the past, the upper end surface of the anchor and the upper plane of the surface layer ≤ 3 cm, and it was difficult to control the seepage problem of concrete with only 2 - 3 cm space. The concrete of the surface layer has sufficient thickness and integrity, and its anti-seepage ability is guaranteed. Adopting the settlement type structure form ensures the surface layer thickness in the anchoring pile area and has stronger anti-seepage ability; adopting the settlement type structure form enables the tension end anchor body to form a complete closed loop for anti-corrosion and anti-seepage at the upper end part of the anchor rod under the functional effects of relatively independent holes, grouting materials, sealing rings, and sealing covers; the structural form and materials of the settlement type anchor backing plate designed in the present invention better solve the ring seepage problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic cross-sectional structure view of a settlement type winged anchor backing plate according to an embodiment of the present invention;

[0028] Figure 2 is a schematic right view structure view of a settlement type winged anchor backing plate according to an embodiment of the present invention;

[0029] Figure 3 is a schematic left view structure view of a settlement type winged anchor backing plate according to an embodiment of the present invention;

[0030] Figure 4 is Figure 1 a schematic cross-sectional structure view at A - A of

[0031] Figure 5 is Figure 1 a schematic cross-sectional structure view at B - B of

[0032] Figure 6 is Figure 1 a schematic cross-sectional structure view at the C-C position of

[0033] Figure 7 is Figure 2 a partially enlarged schematic view at the 1-1 position of

[0034] Figure 8 is Figure 7 a schematic cross-sectional structure view at the 2-2 position of

[0035] Figure 9 is Figure 6 a schematic cross-sectional structure view at the 3-3 position of

[0036] Figure 10 is Figure 6 a schematic cross-sectional structure view at the 4-4 position of

[0037] Figure 11 a schematic installation structure view of a settlement type winged anchor backing plate according to an embodiment of the present invention.

[0038] Main reference numeral description:

[0039] 1 - Settlement type winged anchor backing plate, 101 - Cylinder head part, 102 - Cylinder body part, 103 - Cylinder tail part, 104 - Inner hole part, 1041 - First hole section, 1042 - Second hole section, 1043 - Third hole section, 105 - Reinforcing wing plate, 106 - Bottom plate reinforcing rib, 107 - Wing plate reinforcing rib, 108 - First mark, 109 - Second mark, 110 - Third mark, 111 - Marking line, 2 - Epoxy resin waterproof material, 3 - C40 waterproof grouting material, 4 - Tensioning anchor, 5 - Working wedge, 6 - Connecting pipe (metal corrugated pipe / metal seamless pipe), 7 - Water stop steel ring assembly, 701 - Ring-shaped body, 8 - Foam sealant, 28 - Ordinary spiral rib, 10 - Steel strand, 11 - Water stop ring end pressure pipe. Detailed implementation manners

[0040] Next, in conjunction with the accompanying drawings, the detailed implementation manners of the present invention will be described in detail, but it should be understood that the protection scope of the present invention is not limited by the detailed implementation manners.

[0041] Unless otherwise clearly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "having" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0042] Such as Figure 1As shown, a settlement type winged anchor backing plate 1 according to a preferred embodiment of the present invention is applied to an anti-corrosion and anti-seepage anchor structure for buildings. The anti-corrosion and anti-seepage anchor structure includes a tension end anchor assembly at the top of multiple steel strands 10 arranged in an anchor hole and a pre-anchoring carrier assembly at the bottom of the multiple steel strands 10, as well as a connecting pipe 6 and a water-stop steel ring assembly 7 below the tension end anchor assembly. The settlement type winged anchor backing plate 1 is arranged in the tension end anchor assembly. The body of the settlement type winged anchor backing plate 1 has a stepped cylinder structure, and the body includes a cylinder head part 101, a cylinder body part 102, a cylinder tail part 103, an inner hole part 104, and multiple reinforcing wing plates 105. The cylinder head part 101 is arranged at the uppermost part of the body. The cylinder body part 102 is coaxially connected to the lower part of the cylinder head part 101. The cylinder tail part 103 is coaxially connected to the lower part of the cylinder body part 102. Among them, the outer dimensions of the cylinder head part 101, the cylinder body part 102, and the cylinder tail part 103 gradually decrease. The inner hole part 104 is coaxially arranged on the body with the cylinder head part 101, the cylinder body part 102, and the cylinder tail part 103. Multiple reinforcing wing plates 105 are evenly spaced along the axial direction and are arranged around the outer wall of the cylinder tail part 103.

[0043] Please refer to Figure 1 , in some embodiments, the inner hole part 104 has a stepped hole structure. The inner hole part 104 includes a first hole section 1041, a second hole section 1042, and a third hole section 1043 corresponding to the cylinder head part 101, the cylinder body part 102, and the cylinder tail part 103, and the sizes of the first hole section 1041, the second hole section 1042, and the third hole section 1043 gradually decrease. The cylinder body part 102, the cylinder tail part 103, the first hole section 1041, the second hole section 1042, and the third hole section 1043 all have a taper from top to bottom. Among them, the taper of the cylinder body part 102 is the same as that of the second hole section 1042, both about 2°. The depths of the first hole section 1041, the second hole section 1042, and the third hole section 1043 gradually increase.

[0044] Please refer to Figure 1 , in some embodiments, the outer dimension of the reinforcing wing plate 105 is larger than the outer dimension of the cylinder tail part 103, and the thickness of each reinforcing wing plate 105 gradually thins from the root of the upper surface to the outer edge. That is to say, the cross-section of the reinforcing wing plate 105 along the radial direction is approximately triangular, and the included angle is about 30°.

[0045] As Figure 3 and Figure 5 shown, and please also refer to Figure 1, in some embodiments, the body further includes a plurality of bottom plate reinforcing ribs 106 and a plurality of wing plate reinforcing ribs 107. The plurality of bottom plate reinforcing ribs 106 extend along the axial direction and are evenly distributed and looped on the outer wall of the barrel body portion 102. The plurality of wing plate reinforcing ribs 107 extend along the axial direction and are evenly distributed and looped on the outer wall of the barrel tail portion 103, and are located between two reinforcing wing plates 105. The number of the plurality of bottom plate reinforcing ribs 106 is the same as that of the plurality of wing plate reinforcing ribs 107, and when viewed along the axis direction, the plurality of bottom plate reinforcing ribs 106 and the plurality of wing plate reinforcing ribs 107 are arranged at intervals. In this embodiment, both the number of the reinforcing wing plates 105 and the wing plate reinforcing ribs 107 are illustrated as four, and the included angle between them is 45°. The number and the included angle are only exemplary, and the present invention is not limited thereto.

[0046] As Figure 4 shown, in some embodiments, the wing plate reinforcing ribs 107 can sometimes be not provided according to actual needs. Generally, those with relatively small force can be not provided or provided less.

[0047] As Figure 9 and Figure 10 shown, in some embodiments, the cross-section of the top of each bottom plate reinforcing rib 106 along the radial direction is triangular, and the cross-section along the axial direction is a regular trapezoid. That is to say, the top thickness of each bottom plate reinforcing rib 106 is tapered into a triangular shape, and the protruding part of the bottom plate reinforcing rib 106 on the bottom surface of the barrel body portion 102 is tapered into an approximately regular trapezoid along the radial cross-section.

[0048] As Figure 6 shown, in some embodiments, there is a chamfered transition between the bottom surface of the outer wall of the barrel head portion 101 and the outer wall of the barrel body portion 102. The included angle between this chamfer and the bottom surface of the barrel head portion 101 is about 154 degrees.

[0049] Please refer to Figure 6 , in some embodiments, the body of this embodiment adopts a cylindrical structure, but the present invention is not limited thereto, and it can also adopt, for example, but not limited to, an elliptical cylinder structure, a square cylinder structure, a polygonal cylinder structure, etc. The tolerance of the bottom size of the second hole section 1042 and the hole size of the third hole section 1043 in this embodiment is controlled within (+1.0 +0.0).

[0050] As Figure 2As shown, in some embodiments, the body further includes a first mark 108, a second mark 109, a third mark 110, and a plurality of engraved lines 112. The first mark 108, the second mark 109, and the third mark 110 are all disposed on the joint surface between the first hole section 1041 and the second hole section 1042, and the marks are all arranged in a centered circular shape. The first mark 108, the second mark 109, and the third mark 110 are mainly used to label enterprise logos, product models, numbers, etc. For example, in this embodiment, the product of model KFM15-5 / 6 / 7-OQM is mainly taken as an example, but the present invention is not limited thereto.

[0051] As Figure 7 and Figure 8 As shown, in some embodiments, the plurality of engraved lines 112 are evenly distributed and arranged on the upper end surface of the cylinder head portion 101 extending radially, and the number and positions of the plurality of engraved lines 112 correspond one-to-one to the number and positions of the plurality of bottom plate stiffeners 106. Such a design is for the convenience of aligning positions during installation for easy installation.

[0052] In some embodiments, the settling winged anchor backing plate 1 of the present invention is generally made of cast iron or cast steel, and the basic technical requirements are as follows: Cracks, pores, slag inclusions, porosity, bean-shaped nodules or sand holes that affect strength are not allowed, and the riser flash is not allowed to be removed; The casting fillet is R2, and the slope is 2° (the inner hole slope of 2° needs to ensure the bottom diameter of ∅125). A resin core is used to ensure a flat bottom surface and a round hole wall; The inner and outer walls of the casting should be sandblasted and rust-proofed; The parallelism between the upper and lower surfaces of the casting does not exceed 2 mm; The inner hole wall is smooth, and the concentricity and cylindricity of ∅125 do not exceed 1 mm; The single font of the casting mark is 12 mm × 10 mm, and the font protrudes 1.5 mm; White mouth is not allowed in the casting structure, and the overall aging is used to remove stress, etc.

[0053] As Figure 11As shown, in some embodiments, the tensioning end anchor assembly and the water stop steel ring assembly 7 of the present invention are mainly arranged in the floor, surface layer and cushion layer at the upper part of the top end of the anchor rod hole. Generally, first, a part of the outer PE sheath at the uppermost end of the unbonded or slow-bonded steel strand 10 is peeled off, and then it is successively passed through the connecting pipe 6, the settlement type winged anchor backing plate 1, and the water stop steel ring assembly 7 is sleeved outside the connecting pipe 6. The upper end of the connecting pipe 6 is inserted into the bottom of the third pipe section, and the bottom of the connecting pipe 6 extends all the way to be almost flush with the bottom of the water stop steel ring assembly 7. The bottom of the water stop steel ring assembly 7 is located at the connection plane between the cushion layer and the top of the anchor rod hole, and the annular body of the water stop steel ring assembly 7 is at the connection between the surface layer and the cushion layer. The outer PE sheath of the steel strand 10 is generally peeled to the middle position of the connecting pipe 6, and is basically higher than the top end of the water stop steel ring assembly 7 by a certain distance. The outer PE sheath of the steel strand 10 below the bottom of the water stop steel ring assembly 7 is all installed by extrusion with a water stop ring end pressing pipe. The bottom surface of the outer wall of the cylinder head 101 is located at the connection surface between the floor and the surface layer. The heads of multiple exposed steel strands 10 with the outer PE sheath peeled off are fastened and locked in the second hole section 1042 through working wedges and a tensioning anchor. The entire inner hole part 104, the inside of the connecting pipe 6, and the inside of the water stop steel ring assembly 7 are filled with C40 waterproof grouting material, and the opening at the top of the inner hole part 104 is sealed with epoxy resin waterproof material. The connection between the connecting pipe 6 and the third hole section 1043 is sealed with foam sealant. Finally, ordinary spiral reinforcement is wound around the upper part of the cylinder tail 103 and the connecting pipe 6.

[0054] In summary, the settlement type winged anchor backing plate for construction of the present invention has the following advantages: The settlement type winged anchor backing plate of the present invention is made of HT250 gray iron or 45# steel. Under the relative acting force of the steel strand of the anchor, the bearing plate meets the requirements of bearing pressure and anti-interference ability under the support of concrete; the number of wing rings is increased or decreased according to the bearing capacity of the anchor backing plate under the calculation of bearing pressure and anti-interference ability under the support of concrete, etc.; because the settlement type post-tensioning end anchor is used, the lower anchor backing plate is connected to the metal corrugated pipe to form a relatively independent cavity. After the tensioning and locking are completed, the waterproof sealing closed loop of the tensioning end is completed through the grouting material filling and epoxy resin waterproof material; the metal corrugated pipe / metal seamless is connected to the lower opening of the settlement type winged anchor backing plate, so that a cavity is formed inside the pipe and the settlement type anchor backing plate starting from the cushion layer to prevent infiltration during the casting of the bottom plate concrete. After the cable anchor is tensioned and locked, C40 waterproof grouting material is injected into the cavity to form a water-sealing lock; the extrusion installation position of the pressure pipe includes the outer PE layer of the steel strand when pressing in the cushion layer and below, and the steel strand above the cushion layer needs to be degreased and the PE layer removed for pressing. Its main functions are: first, the adhesion between the metal pressure pipe and the concrete is greater than the adhesion of the PE plastic, which can effectively solve the problem of the foundation water seeping around through the bonding crack between the PE pipe and the concrete; second, during the construction process, when the steel strand is at the upper end of the cushion layer, there is a phenomenon of bending. It is very difficult to straighten the steel strand after bending, which causes difficulties in the construction of steel bar binding and anchor backing plate operation installation during the bottom plate casting process, especially the installation construction of the anchor during tensioning; now, the steel strand with an external pressure pipe can be easily straightened after bending. The settlement type anchor backing plate is cast with gray iron, and its surface is rough. With the setting of the reinforcing ribs and the alignment blocks, it can better adhere to the concrete and also solve the problem of the foundation water seeping around through the surface of the anchor backing plate. Through the settlement type structure, the overall tensioning end anchor body descends and maintains the surface layer thickness within the bottom plate layer, changing the situation that the upper end surface of the anchor body is within the surface layer and the distance between the upper end surface of the anchor and the upper plane of the surface layer is ≤ 3 cm. It is very difficult to control the water seepage problem with only the 2-3 cm space of concrete. The concrete of the surface layer has sufficient thickness and integrity, and its anti-seepage ability is guaranteed. The settlement type structure form ensures the surface layer thickness in the anchor pile area and has stronger anti-seepage ability; the settlement type structure form enables the tensioning end anchor body to form a complete closed loop for anti-corrosion and anti-seepage at the upper end of the anchor rod under the functional action of the relatively independent hole, grouting material, sealing ring and sealing cover; the structural form and materials of the settlement type anchor backing plate of this design better solve the problem of surrounding seepage.

[0055] The foregoing description of specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the invention, as well as various different selections and modifications. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A settlement - type winged anchor backing plate for construction, which is applied to an anti - corrosion and anti - seepage anchor structure for construction. The anti - corrosion and anti - seepage anchor structure includes a tension - end anchor assembly at the top of multiple steel strands arranged in an anchor hole, a pre - installed anchoring carrier assembly at the bottom of the multiple steel strands, and a connecting pipe and a water - stop steel ring assembly below the tension - end anchor assembly. It is characterized in that, The settlement type winged anchor backing plate is arranged in the tension end anchor assembly, and the settlement type winged anchor backing plate includes: A body, which has a cylindrical structure, and the body includes: A cylinder head part, which is arranged at the uppermost part of the body; A cylinder body part, which is coaxially connected to the lower part of the cylinder head part; A cylinder tail part, which is coaxially connected to the lower part of the cylinder body part; Wherein the outer dimensions of the cylinder head part, the cylinder body part and the cylinder tail part gradually decrease; An inner hole part, which is coaxially arranged on the body with the cylinder head part, the cylinder body part and the cylinder tail part; A plurality of strengthening wing plates, which are evenly spaced in the axial direction and are arranged in a ring on the outer wall of the cylinder tail part; A plurality of bottom plate strengthening ribs, which extend in the axial direction and are evenly distributed in a ring on the outer wall of the cylinder body part; and A plurality of wing plate strengthening ribs, which extend in the axial direction and are evenly distributed in a ring on the outer wall of the cylinder tail part and are located between two of the strengthening wing plates; Wherein the inner hole part has a stepped hole structure, and the inner hole part includes a first hole section, a second hole section and a third hole section corresponding to the cylinder head part, the cylinder body part and the cylinder tail part, and the inner hole dimensions of the first hole section, the second hole section and the third hole section gradually decrease; Wherein the cylinder body part, the cylinder tail part, the first hole section, the second hole section and the third hole section all include a taper from top to bottom, and the taper of the cylinder body part is the same as that of the second hole section; Wherein the inner hole depths of the first hole section, the second hole section and the third hole section gradually increase.

2. The settlement - type winged anchor backing plate for construction according to claim 1, characterized in that, The outer dimension of the strengthening wing plate is larger than the outer dimension of the cylinder tail part, and the thickness of each strengthening wing plate gradually thins from the root of the upper surface to the outer edge part.

3. The settlement - type winged anchor backing plate for construction according to claim 1, characterized in that, The number of the plurality of bottom plate strengthening ribs is the same as that of the plurality of wing plate strengthening ribs, and when viewed in the axial direction, the plurality of bottom plate strengthening ribs and the plurality of wing plate strengthening ribs are arranged at intervals.

4. The settlement - type winged anchor backing plate for construction according to claim 1, characterized in that, The cross section of the top of each bottom plate strengthening rib is triangular in the radial direction and trapezoidal in the axial direction.

5. The settlement - type winged anchor backing plate for construction according to claim 1, characterized in that, The bottom surface of the outer wall of the cylinder head part and the outer wall of the cylinder body part are in a chamfered transition.

6. The settlement - type winged anchor backing plate for construction according to claim 1, characterized in that, The body further includes a first mark, a second mark, a third mark and a plurality of engraved lines. The first mark, the second mark and the third mark are all arranged on the connection surface between the first hole section and the second hole section, and the marks are all arranged in a centered circular shape. The plurality of engraved lines are evenly distributed and extend in the radial direction on the upper end surface of the cylinder head part, and the number and positions of the plurality of engraved lines correspond one by one to the number and positions of the plurality of bottom plate strengthening ribs.

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