A kind of building anti-floating anchor construction structure and method

Abstract

The present invention is applicable to the technical field of building construction, and provides a construction structure and method for anti-floating anchor rods, the structure comprising a hollow anchor rod, a sealing partition is provided at the bottom of the hollow anchor rod, and the bottom end of the sealing partition is connected to the main plug rod through a connecting column; it also comprises: a primary fixing module, the primary fixing module comprises a plurality of transverse plug plates arranged in a ring in the sealing partition, and an adjustment unit for driving each transverse plug plate to slide synchronously along the radial direction of the sealing partition; a secondary fixing module, the secondary fixing module comprises a mounting plate and a vertical plug plate, a second spring is connected between the mounting plate and the bottom of the sealing partition, and each of the vertical plug plates is connected to the side wall of the connecting column through a second adjusting connecting rod. The device can synchronously enhance the lateral and vertical fixing effects of the hollow anchor rod by adopting a multi-stage sequential fixing method, and its structure is simple, the construction method is convenient, and the use effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a building anti-floating anchor rod construction structure and method. Background Art

[0002] With the rapid development of urbanization, the development and utilization of underground space is also developing continuously, which can greatly improve the space utilization rate of urban land and alleviate the contradiction between urban development and land resource shortage. However, in the process of underground space development, the deadweight of underground structure is often less than the buoyancy of groundwater. In order to solve this problem, multi-story buildings usually adopt the foundation form of single foundation plus waterproof board, and the anti-floating measures mostly adopt anti-floating anchor rods.

[0003] In the prior art, anti-floating anchor rods, as an important anti-floating measure for underground structures, have the advantages of high bearing capacity, reliable quality, and simple process, but they still have some technical defects. Specifically, anti-floating anchor rods are required to be anchored in hard or relatively hard rock, and their applicability to soft rock and soil is poor. This is because the bearing capacity of soft rock and soil is low and cannot provide sufficient anchoring force, which may cause the anchor rod to fail. Therefore, providing an anti-floating anchor rod that can perform multi-stage fixation on the bottom so that it can adapt to the use scenarios of soft rock and soil is a major technical problem that needs to be solved at present. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a building anti-floating anchor rod construction structure and method, aiming to solve the problems raised in the above-mentioned background technology.

[0005] The embodiment of the present invention is implemented as follows: a construction anti-floating anchor rod construction structure includes a hollow anchor rod, a sealing partition is provided at the bottom of the hollow anchor rod, a plurality of discharge holes are arranged in a circle on the side wall of one end of the hollow anchor rod close to the sealing partition, a connecting column is connected to the bottom end of the sealing partition, and a main plug rod is connected to the bottom of the connecting column; and further includes:

[0006] A primary fixing module, the primary fixing module comprises a plurality of transverse plug plates installed in a ring array in the sealing partition, and each of the transverse plug plates is installed on the sealing partition along the radial sliding direction of the sealing partition, and one end of each of the transverse plug plates close to the center of the sealing partition is connected to a connecting seat, the connecting seat passes through the top wall of the sealing partition, and a sliding groove for the connecting seat to slide is provided on the sealing partition, and an adjusting unit is also provided in the hollow anchor rod, and the adjusting unit passes through the discharge hole and is connected to each connecting seat at the same time, and is used to drive each connecting seat to slide synchronously along the sliding groove;

[0007] A secondary fixing module, the secondary fixing module includes a mounting plate sleeved on the top of the connecting column, and a plurality of vertical plug plates installed in a ring around the connecting column. A second spring is connected between the mounting plate and the bottom of the sealing partition. When there is no external force, under the elastic force of the second spring, the mounting plate will be at the upper limit position, and the top of each of the vertical plug plates is installed in the mounting plate along the radial sliding of the mounting plate. The side of each of the vertical plug plates close to the connecting column is connected to the side wall of the connecting column through a second adjusting connecting rod, and the two ends of the second adjusting connecting rod are respectively rotatably connected to the connecting column and the vertical plug plate.

[0008] According to a further technical solution, each of the vertical plug plates is connected to the side wall of the connecting column via two second adjusting connecting rods arranged in parallel.

[0009] According to a further technical solution, the diameter of the sealing partition is the same as the inner diameter of the anchor hole.

[0010] A further technical solution is that the adjusting unit includes a baffle plate installed in the hollow anchor rod for axial sliding along the hollow anchor rod, and a first spring is arranged between the baffle plate and the bottom wall of the hollow anchor rod, and in an initial state (at this time, the baffle plate is only affected by the elastic force of the first spring in addition to gravity), the bottom of the baffle plate is located above the highest point of the discharge hole, and a plurality of first adjusting links are arranged in a ring at the bottom of the baffle plate, and the top of each of the first adjusting links is rotatably installed on the bottom of the baffle plate, and the number of the first adjusting links is the same as the number of connecting seats, and the end of each of the first adjusting links away from the baffle plate passes through a discharge hole and is rotatably connected to a connecting seat.

[0011] According to a further technical solution, a support block is provided at the bottom of each of the transverse plug plates, and in an initial state (i.e. when the transverse plug plates are fully retracted in the sealing partition), a side of each support block close to the center of the sealing partition abuts against the outer wall of the mounting plate.

[0012] According to a further technical solution, four vertical plugs are arranged around the connecting column, and the central angle of each vertical plug is 90°, so that each vertical plug fits together when contracted to form a ring outside the connecting column, and the outer diameter of the ring is the same as the outer contour of the main plug. In this state, even when the vertical plug is not opened, it can be directly inserted into the bottom of the anchor hole with the main plug without affecting the use effect of the main plug.

[0013] In a further technical solution, each vertical plug plate is provided with a clamping inclined surface at the bottom, and a clamping inclined platform for matching the clamping inclined surface is provided at the top of the main plug rod, and when the mounting plate is located at the upper limit position, the clamping inclined surface at the bottom of each vertical plug plate is attached to the clamping inclined platform. By providing the clamping inclined surface, the vertical plug plate can be easily inserted into the soft rock or soil corresponding to the bottom of the anchor hole.

[0014] Another object of an embodiment of the present invention is to provide a construction method of a building anti-floating anchor rod, based on the above-mentioned building anti-floating anchor rod construction structure, comprising the following steps:

[0015] Step 1: After completing the preliminary preparation work, place the hollow anchor rod into the anchor hole until the main rod is inserted into the bottom of the anchor hole;

[0016] Step 2: Inject concrete slurry into the hollow anchor rod from the top of the hollow anchor rod. As the concrete slurry falls in the hollow anchor rod, it will eventually contact the adjustment unit. The adjustment unit uses the gravitational potential energy and kinetic energy of the concrete slurry to push each connection seat to slide synchronously, thereby inserting the transverse plug plate into the side wall of the anchor hole through the connection seat;

[0017] During this process, the concrete slurry will first flow out of the hollow anchor rod through the discharge hole onto the sealing partition, and then flow through the sliding groove and the gap below to just above the mounting plate;

[0018] Step 3: The concrete slurry pushes the mounting plate to slide downward along the connecting column through its own gravitational potential energy and remaining kinetic energy. The mounting plate will push the vertical plug plate to move downward synchronously. At the same time, due to the limiting effect of the second adjusting connecting rod, the vertical plug plate will slide along the radial direction of the mounting plate, so that each vertical plug plate opens outward at the same time and is finally inserted into the bottom of the anchor hole, thereby further improving the fixing effect of the hollow anchor rod.

[0019] The embodiment of the present invention provides a construction structure and method for anti-floating anchor rods. When in use, after completing the preliminary preparation work, the hollow anchor rod can be placed in the anchor hole until the main plug rod is inserted into the bottom of the anchor hole. Then the concrete slurry can be injected into the hollow anchor rod from the top. As the concrete slurry falls in the hollow anchor rod, it will eventually contact the adjustment unit. The adjustment unit can use the gravitational potential energy and kinetic energy of the concrete slurry to push each connection seat to slide synchronously, so as to insert the transverse plug plate into the side wall of the anchor hole through the connection seat. During this process, the concrete slurry will first flow out of the hollow anchor rod through the discharge hole onto the sealing partition, and then flow to the top of the mounting plate through the sliding groove and the gap below (the gap is sealed by the horizontal plug plate in the initial state). At this time, the concrete slurry pushes the mounting plate to slide down along the connecting column through its own gravitational potential energy and the remaining kinetic energy. The mounting plate will push the vertical plug plate to move downward synchronously. At the same time, due to the limiting effect of the second adjustment connecting rod, the vertical plug plate will slide along the radial direction of the mounting plate, so that each vertical plug plate opens outward at the same time and finally inserts into the bottom of the anchor hole, thereby further improving the fixing effect of the hollow anchor rod. The device can synchronously improve the lateral and vertical fixing effects of the hollow anchor rod by adopting a multi-stage sequential fixing method. It has a simple structure, convenient construction method, and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A structural schematic diagram of a building anti-floating anchor rod construction structure provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a structure from an upward perspective of an anti-floating anchor rod construction structure of a building provided by an embodiment of the present invention;

[0022] Figure 3 A cross-sectional view of a building anti-floating anchor rod construction structure provided by an embodiment of the present invention;

[0023] Figure 4 for Figure 3 A in the enlarged view;

[0024] Figure 5 for Figure 3 Enlarged view of point B in .

[0025] In the accompanying drawings: hollow anchor rod 1; sealing partition 11; main plug rod 12; engaging ramp 121; connecting column 13; discharge hole 14; primary fixing module 2; horizontal plug plate 21; connecting seat 22; sliding groove 23; first adjusting link 24; baffle 25; first spring 26; support block 27; secondary fixing module 3; mounting plate 31; vertical plug plate 32; engaging ramp 321; second adjusting link 33; second spring 34. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0028] like Figure 1-Figure 4 As shown, an anti-floating anchor rod construction structure provided by an embodiment of the present invention comprises a hollow anchor rod 1, a sealing partition 11 is arranged at the bottom of the hollow anchor rod 1, a plurality of discharge holes 14 are arranged in a circle on the side wall of one end of the hollow anchor rod 1 close to the sealing partition 11, a connecting column 13 is connected to the bottom end of the sealing partition 11, and a main plug rod 12 is connected to the bottom of the connecting column 13; and further comprises:

[0029] A primary fixing module 2, the primary fixing module 2 comprises a plurality of transverse plug plates 21 which are installed in a ring in the sealing partition 11, and each of the transverse plug plates 21 is installed on the sealing partition 11 along the radial sliding direction of the sealing partition 11, and each of the transverse plug plates 21 is connected to a connecting seat 22 at one end close to the center of the sealing partition 11, the connecting seat 22 passes through the top wall of the sealing partition 11, and a sliding groove 23 for sliding the connecting seat 22 is provided on the sealing partition 11, and an adjusting unit is also provided in the hollow anchor rod 1, the adjusting unit passes through the discharge hole 14 and is connected to each connecting seat 22 at the same time, and is used to drive each connecting seat 22 to slide synchronously along the sliding groove 23;

[0030] The secondary fixing module 3 includes a mounting plate 31 sleeved on the top of the connecting column 13, and a plurality of vertical plug plates 32 arranged in a ring around the connecting column 13. A second spring 34 is connected between the mounting plate 31 and the bottom of the sealing partition 11. When there is no external force, under the elastic force of the second spring 34, the mounting plate 31 will be at the upper limit position, and the top of each of the vertical plug plates 32 is radially slidably installed in the mounting plate 31. The side of each of the vertical plug plates 32 close to the connecting column 13 is connected to the side wall of the connecting column 13 through a second adjusting link 33, and the two ends of the second adjusting link 33 are rotatably connected to the connecting column 13 and the vertical plug plates 32 respectively.

[0031] In an embodiment of the present invention, each of the vertical plug plates 32 is connected to the side wall of the connecting column 13 through two second adjusting connecting rods 33 arranged in parallel. The diameter of the sealing partition 11 is the same as the inner diameter of the anchor hole. When in use, after completing the preliminary preparations, the hollow anchor rod 1 can be placed in the anchor hole until the main plug rod 12 is inserted into the bottom of the anchor hole. Then the concrete slurry can be injected into the hollow anchor rod 1 from the top of the hollow anchor rod 1. As the concrete slurry falls in the hollow anchor rod 1, it will eventually contact the adjustment unit. The adjustment unit can use the gravitational potential energy and kinetic energy of the concrete slurry to push each connecting seat 22 to slide synchronously, thereby inserting the horizontal plug plate 21 into the side wall of the anchor hole through the connecting seat 22. During this process, the concrete slurry will first flow out of the hollow anchor rod 1 through the discharge hole 14 to the sealing partition 11, and then flow to the top of the mounting plate 31 through the sliding groove 23 and the gap below (the gap is sealed by the horizontal plug plate 21 in the initial state). At this time, the concrete slurry pushes the mounting plate 31 to slide downward along the connecting column 13 through its own gravitational potential energy and remaining kinetic energy, and the mounting plate 31 will push the vertical plug plate 32 to move downward synchronously. At the same time, due to the limiting effect of the second adjusting link 33, the vertical plug plate 32 will slide along the radial direction of the mounting plate 31, so that each vertical plug plate 32 is opened outward at the same time and finally inserted into the bottom of the anchor hole, thereby further improving the fixing effect of the hollow anchor rod 1.

[0032] like Figure 1-Figure 4 As shown, as a preferred embodiment of the present invention, the adjusting unit includes a baffle 25 slidably installed in the hollow anchor rod 1 along the axial direction of the hollow anchor rod 1, and a first spring 26 is arranged between the baffle 25 and the bottom wall of the hollow anchor rod 1. In the initial state (at this time, the baffle 25 is only affected by the elastic force of the first spring 26 in addition to gravity), the bottom of the baffle 25 is located above the highest point of the discharge hole 14, and a plurality of first adjusting links 24 are arranged in a ring at the bottom of the baffle 25. The top of each of the first adjusting links 24 is rotatably installed at the bottom of the baffle 25, and the number of the first adjusting links 24 is the same as the number of the connecting seats 22. The end of each of the first adjusting links 24 away from the baffle 25 passes through a discharge hole 14 and is rotatably connected to a connecting seat 22.

[0033] In the embodiment of the present invention, when in use, in the initial state, the baffle 25 is located at the upper limit position, and the connecting seat 22 is at the minimum distance from the center of the sealing partition 11. At the same time, each transverse plug 21 is retracted in the sealing partition 11. As the concrete slurry is transported to the bottom of the sealing partition 11, the concrete slurry will directly impact the baffle 25, thereby driving the baffle 25 to move downward. The baffle 25 can drive each connecting seat 22 to slide synchronously to the side away from the center of the sealing partition 11 through the first adjustment link 24, thereby driving the transverse plug 21 to be inserted into the side wall of the anchor hole through the connecting seat 22, thereby increasing the overall firmness of the device.

[0034] like Figure 3 and Figure 4 As shown, as a preferred embodiment of the present invention, a support block 27 is provided at the bottom of each of the transverse plug plates 21, and in the initial state (that is, when the transverse plug plates 21 are fully retracted in the sealing partition 11), the side of each support block 27 close to the center of the sealing partition 11 abuts against the outer wall of the mounting plate 31.

[0035] In the embodiment of the present invention, in the initial state, each support block 27 is in contact with the outer wall of the mounting plate 31, and the mounting plate 31 is fixed by the squeezing of each support block 27 to prevent the mounting plate 31 from shaking during the construction process. As the transverse plug plate 21 is inserted into the side wall of the anchor hole, the transverse plug plate 21 will drive the support block 27 to move synchronously to the side close to the side wall of the anchor hole, and finally make the support block 27 stuck on the side wall of the anchor hole, thereby forming a step-shaped clamping structure under the transverse plug plate 21, thereby providing a supporting force under the transverse plug plate 21, and preventing the contact area between the transverse plug plate 21 and the side wall of the anchor hole from shear deformation.

[0036] As a preferred embodiment of the present invention, four vertical plug plates 32 are arranged around the connecting column 13, and the central angle of each vertical plug plate 32 is 90°, so that each vertical plug plate 32 fits each other when contracted, forming a ring outside the connecting column 13, and the outer diameter of the ring is the same as the outer profile of the main plug rod 12. In this state, even when the vertical plug plates 32 are not opened, they can be directly inserted into the bottom of the anchor hole along with the main plug rod 12 without affecting the use effect of the main plug rod 12.

[0037] like Figure 3 and Figure 5 As shown, as a preferred embodiment of the present invention, the bottom of each vertical plug plate 32 is provided with a snap-in inclined surface 321, and the top of the main plug rod 12 is provided with a snap-in inclined platform 121 for matching the snap-in inclined surface 321, and when the mounting plate 31 is located at the upper limit position, the snap-in inclined surface 321 at the bottom of each vertical plug plate 32 is attached to the snap-in inclined platform 121. By providing the snap-in inclined surface 321, the vertical plug plate 32 can be easily inserted into the soft rock or soil corresponding to the bottom of the anchor hole.

[0038] In addition, through the cooperation between the engaging inclined surface 321 and the engaging inclined platform 121, the bottom of the vertical plug board 32 can be completely engaged with the main plug rod 12, so that no step will be generated at the joint between the ring formed by each vertical plug board 32 and the main plug rod 12.

[0039] A construction method of a building anti-floating anchor rod provided by an embodiment of the present invention, based on the above-mentioned building anti-floating anchor rod construction structure, comprises the following steps:

[0040] Step 1: After completing the preliminary preparation work, place the hollow anchor rod 1 into the anchor hole until the main insertion rod 12 is inserted into the bottom of the anchor hole;

[0041] Step 2: inject concrete slurry into the hollow anchor rod 1 from the top thereof. As the concrete slurry falls in the hollow anchor rod 1, it will eventually contact the adjustment unit. The adjustment unit uses the gravitational potential energy and kinetic energy of the concrete slurry to push each connecting seat 22 to slide synchronously, thereby inserting the transverse plug plate 21 into the side wall of the anchor hole through the connecting seat 22.

[0042] During this process, the concrete slurry will first flow out of the hollow anchor rod 1 through the discharge hole 14 onto the sealing partition 11, and then flow through the sliding groove 23 and the gap below to the top of the mounting plate 31;

[0043] Step 3: The concrete slurry pushes the mounting plate 31 to slide downward along the connecting column 13 through its own gravitational potential energy and remaining kinetic energy. The mounting plate 31 will push the vertical plug plate 32 to move downward synchronously. At the same time, due to the limiting effect of the second adjusting link 33, the vertical plug plate 32 will slide along the radial direction of the mounting plate 31, so that each vertical plug plate 32 opens outward at the same time and is finally inserted into the bottom of the anchor hole, thereby further improving the fixing effect of the hollow anchor rod 1.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A building anti-floating anchor construction structure, characterized in that: The invention comprises a hollow anchor rod, a sealing partition is arranged at the bottom of the hollow anchor rod, a plurality of discharge holes are arranged in a circle on the side wall of one end of the hollow anchor rod close to the sealing partition, a connecting column is connected to the bottom end of the sealing partition, and a main plug rod is connected to the bottom of the connecting column; and further comprises: A primary fixing module, the primary fixing module comprises a plurality of transverse plug plates installed in a ring array in the sealing partition, and each of the transverse plug plates is installed on the sealing partition along the radial sliding direction of the sealing partition, and one end of each of the transverse plug plates close to the center of the sealing partition is connected to a connecting seat, the connecting seat passes through the top wall of the sealing partition, and a sliding groove for the connecting seat to slide is provided on the sealing partition, and an adjusting unit is also provided in the hollow anchor rod, and the adjusting unit passes through the discharge hole and is connected to each connecting seat at the same time, and is used to drive each connecting seat to slide synchronously along the sliding groove; A secondary fixing module, the secondary fixing module comprises a mounting plate sleeved on the top of the connecting column, and a plurality of vertical plug plates installed in a ring around the connecting column, a second spring is connected between the mounting plate and the bottom of the sealing partition, when there is no external force, under the elastic force of the second spring, the mounting plate will be at the upper limit position, and the top of each of the vertical plug plates is installed in the mounting plate along the radial sliding of the mounting plate, and the side of each of the vertical plug plates close to the connecting column is connected to the side wall of the connecting column through a second adjusting connecting rod, and the two ends of the second adjusting connecting rod are respectively rotatably connected to the connecting column and the vertical plug plate; The adjusting unit comprises a baffle plate slidably installed in the hollow anchor rod along the axial direction of the hollow anchor rod, and a first spring is arranged between the baffle plate and the bottom wall of the hollow anchor rod. When there is no external force, under the elastic force of the first spring, the bottom of the baffle plate is located above the highest point of the discharge hole, and a plurality of first adjusting connecting rods are arranged in a ring at the bottom of the baffle plate. The top of each of the first adjusting connecting rods is rotatably installed at the bottom of the baffle plate, and the number of the first adjusting connecting rods is the same as the number of the connecting seats. One end of each of the first adjusting connecting rods away from the baffle plate passes through a discharge hole and is rotatably connected to a connecting seat. A support block is provided at the bottom of each of the transverse plug plates, and when the transverse plug plates are fully retracted in the sealing partition, a side of each support block close to the center of the sealing partition abuts against the outer wall of the mounting plate; The bottom of each vertical plug plate is provided with a snap-fitting inclined surface, and the top of the main plug rod is provided with a snap-fitting inclined platform for matching the snap-fitting inclined surface, and when the mounting plate is located at the upper limit position, the snap-fitting inclined surfaces at the bottom of each vertical plug plate are all fitted on the snap-fitting inclined platform.

2. The anti-floating anchor rod construction structure of the building according to claim 1 is characterized in that: Each of the vertical plug plates is connected to the side wall of the connecting column via two second adjusting connecting rods arranged in parallel.

3. The anti-floating anchor rod construction structure of the building according to claim 1 is characterized in that: Four vertical plug plates are arranged in a circle around the connecting column, and the central angle of each vertical plug plate is 90°. When the vertical plug plates are contracted, they fit together to form a circular ring outside the connecting column, and the outer diameter of the circular ring is the same as the outer contour of the main plug rod.

4. A construction method for anti-floating anchor rods, based on the anti-floating anchor rod construction structure of any one of claims 1 to 3, characterized in that: The following steps are involved: Step 1: After completing the preliminary preparation work, place the hollow anchor rod into the anchor hole until the main rod is inserted into the bottom of the anchor hole; Step 2: Inject concrete slurry into the hollow anchor rod from the top of the hollow anchor rod. As the concrete slurry falls in the hollow anchor rod, it will eventually contact the adjustment unit. The adjustment unit uses the gravitational potential energy and kinetic energy of the concrete slurry to push each connection seat to slide synchronously, thereby inserting the transverse plug plate into the side wall of the anchor hole through the connection seat; During this process, the concrete slurry will first flow out of the hollow anchor rod through the discharge hole onto the sealing partition, and then flow through the sliding groove and the gap below to just above the mounting plate; Step 3: The concrete slurry pushes the mounting plate to slide downward along the connecting column through its own gravitational potential energy and remaining kinetic energy. The mounting plate will push the vertical plug plate to move downward synchronously. At the same time, due to the limiting effect of the second adjusting connecting rod, the vertical plug plate will slide along the radial direction of the mounting plate, so that each vertical plug plate opens outward at the same time and is finally inserted into the bottom of the anchor hole.

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