Anti-floating anchoring pile structure for building foundation

Abstract

The utility model discloses an anti-floating anchoring pile structure for a building foundation. The anti-floating anchoring pile structure comprises a pile hole formed in a foundation soil layer, an anti-floating anchor rod arranged in the pile hole in a penetrating mode and a concrete pile poured into the pile hole. An annular table is arranged at the position of a pile hole opening in the circumferential direction, a waterproof sealing ring is arranged in the annular table, and the waterproof sealing ring is composed of a rubber sleeve arranged on the anti-floating anchor rod in a sleeving mode and a horizontal rubber gasket connected to the lower edge of the rubber sleeve. The lower surface of the horizontal rubber gasket is flatly attached to the table top of the annular table, the thickness of the horizontal rubber gasket is consistent with the depth of the annular table, the annular table on the outer side of the horizontal rubber gasket and a sleeve cavity in the inner side of the rubber sleeve are filled with crack pouring asphalt, and SBS waterproof roll layers are laid on the horizontal rubber gasket and the foundation soil layer. And a concrete fine stone protection layer covering the upper surface of the rubber sleeve is laid on the SBS waterproof roll layer. The anti-floating anchoring pile has the advantages that the waterproof effect of the anti-floating anchoring pile is remarkably improved, and the excellent purposes of reducing construction cost and labor cost, improving construction efficiency and improving economic benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-floating measures for building engineering foundations, in particular to an anti-floating anchor pile structure for building foundations. Background Art

[0002] At present, foundation piles are usually used in the foundation of construction projects to bear the construction load pressure. Traditional foundation piles are mostly compression piles, and the force is transmitted from the top of the pile to the bottom of the pile, which cannot effectively resist the upward buoyancy brought by the groundwater level. Therefore, when construction is carried out in areas with high groundwater levels, in order to resist the upward displacement of the building caused by the buoyancy of groundwater, anti-floating anchor rods are needed as anti-floating measures for the underground structure of the construction project.

[0003] Since the anti-floating anchor rod steel bar has to penetrate the bottom slab waterproof layer of the underground building, it becomes the weakest point of the entire basement waterproofing. In order to improve the waterproof effect of the penetration point of the anti-floating anchor rod steel bar, the existing methods are mostly to directly fill additional waterproof coatings on the bottom slab waterproof layer in a relatively dry and moisture-proof environment, or to thicken the thickness of the anti-floating anchor rod steel bar penetration point. The above two measures not only affect the surface flatness of the bottom slab of the building foundation, but also the waterproof effect is not ideal. At the same time, it also increases the construction steps, which seriously affects the construction quality and efficiency of the building project in areas with high groundwater levels. Summary of the invention

[0004] The utility model aims to provide an anti-floating anchor pile structure for a building foundation in view of the defects of the prior art.

[0005] In order to achieve the above purpose, the utility model can adopt the following technical solutions:

[0006] The anti-floating anchor pile structure of the building foundation described in the utility model comprises a pile hole opened on the foundation soil layer, an anti-floating anchor rod penetrated in the pile hole, and a concrete pile poured in the pile hole for sealing the anti-floating anchor rod; a ring platform is opened circumferentially at the hole mouth of the pile hole, a waterproof sealing ring is arranged in the ring platform, and the waterproof sealing ring is composed of a rubber sleeve ringed on the anti-floating anchor rod, and a horizontal rubber gasket connected to the lower edge of the rubber sleeve; wherein the lower surface of the horizontal rubber gasket is flat on the table surface of the ring platform, and its thickness is consistent with the depth of the ring platform, and the ring platform outside the horizontal rubber gasket and the cylinder cavity inside the rubber sleeve are filled with grouting asphalt, an SBS waterproof membrane layer is laid on the horizontal rubber gasket and the foundation soil layer, and a concrete fine stone protective layer covering the upper surface of the rubber sleeve is laid on the SBS waterproof membrane layer.

[0007] Furthermore, the anti-floating anchor rod is formed by three vertical steel bars tied together by stirrups, the upper end of each vertical steel bar extends out of the pile hole, and the end thereof has a steel bar head bent outwardly in a horizontal posture.

[0008] Furthermore, the rubber sleeve and the horizontal rubber gasket are integrally formed, and the upper surface of the horizontal rubber gasket is a rough frosted surface.

[0009] The advantage of the utility model is that a ring platform is opened at the hole mouth of the pile hole, a waterproof sealing ring is arranged inside the ring platform and is mounted on the anti-floating anchor rod, and asphalt is filled in the gaps inside and outside the waterproof sealing ring, thereby significantly improving the waterproof effect of the anti-floating anchor pile. Compared with the traditional construction method of directly filling the waterproof layer with additional waterproof filler, the main material technology of this structure is mature, the construction process is simple and easy to operate, it can reduce the waterproof construction process, and is less restricted by weather during construction, thereby achieving the excellent purpose of reducing construction costs and labor costs, improving construction efficiency, and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 yes Figure 1 Enlarged view of the waterproof seal ring.

[0012] Figure 3 yes Figure 2 Top view of the .

[0013] Figure 4 yes Figure 2 Axonometric view of . DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] like Figure 1-4 As shown, the anti-floating anchor pile structure of the building foundation described in the utility model includes a pile hole 1 opened on the foundation soil layer 100, an anti-floating anchor rod 2 penetrated in the pile hole 1, and a concrete pile 3 poured in the pile hole 1 for sealing the anti-floating anchor rod 2; wherein, the anti-floating anchor rod 2 is formed by three vertical steel bars tied together by stirrups, and the upper end of each vertical steel bar extends out of the pile hole 1, and the end thereof has a tendon head bent outward in a horizontal posture.

[0016] A ring platform 4 is provided at the hole opening of the pile hole 1 along the circumferential direction, and a waterproof sealing ring 5 is provided inside the ring platform 4. The waterproof sealing ring 5 is composed of a rubber sleeve 5.1 sleeved on the anti-floating anchor rod 2, and a horizontal rubber gasket 5.2 connected to the lower edge of the rubber sleeve 5.1. The rubber sleeve 5.1 and the horizontal rubber gasket 5.2 are integrally formed by a mold. When the waterproof sealing ring 5 is sleeved on the anti-floating anchor rod 2 and seated in the ring platform 4, the lower surface of the horizontal rubber gasket 5.2 should be able to be flatly attached to the surface of the ring platform 4, and the thickness of the horizontal rubber gasket 5.2 should be consistent with the depth of the ring platform 4, and its upper surface is a rough frosted surface flush with the surface of the foundation soil layer 100.

[0017] In addition, the ring platform 4 outside the horizontal rubber gasket 5.2 and the cylinder cavity inside the rubber sleeve 5.1 are filled with caulking asphalt 6 for maintaining sealing, and an SBS waterproof membrane layer 7 is laid on the horizontal rubber gasket 5.2 and the foundation soil layer 100, and a concrete fine stone protective layer 8 is laid on the SBS waterproof membrane layer 7. The laying thickness of the concrete fine stone protective layer 8 should be guaranteed to cover the upper surface of the rubber sleeve 5.1.

[0018] During construction, the first step is to vertically open a pile hole 1 on the foundation soil layer 100, and open a ring platform 4 at the hole mouth of the pile hole 1. The number and depth of the pile holes 1 are determined according to the specific building design, and the outer diameter of the ring platform 4 should be larger than the outer diameter of the horizontal rubber gasket 5.2 of the waterproof sealing ring 5;

[0019] The second step is to vertically insert the prefabricated anti-floating anchor rod 2 into the pile hole 1 and support it with auxiliary steel bars. Note that the upper end of the anti-floating anchor rod 2 is not bent when prefabricating it, so as to facilitate the subsequent installation of the waterproof sealing ring 5.

[0020] The third step is to pour concrete into the pile hole 1 until the concrete is flush with the surface of the ring platform 4. After the concrete solidifies, a concrete pile 3 is formed to seal the anti-floating anchor rod 2;

[0021] The fourth step is to put a waterproof seal ring 5 on the anti-floating anchor rod 2 from top to bottom, and move the waterproof seal ring 5 down to the ring platform 4. When the lower surface of the horizontal rubber gasket 5.2 is flat on the surface of the ring platform 4, its upper surface is just flush with the surface of the foundation soil layer 100. After the waterproof seal ring 5 is installed in place, the upper end of the anti-floating anchor rod 2 can be bent outward to form a horizontal tendon head.

[0022] Step 5: Fill the asphalt grouting 6 in the ring platform 4 outside the horizontal rubber gasket 5.2 and the cylinder cavity inside the rubber sleeve 5.1 to provide a better waterproof seal for the waterproof sealing ring 5. The asphalt grouting 6 in the ring platform 4 outside the horizontal rubber gasket 5.2 is flush with the upper surface of the horizontal rubber gasket 5.2, and the asphalt grouting 6 in the cylinder cavity inside the rubber sleeve 5.1 is flush with the top edge of the rubber sleeve 5.1.

[0023] Step 6: fully spread the SBS waterproofing membrane layer 7 on the horizontal rubber gasket 5.2 and the foundation soil layer 100;

[0024] Step 7: Fully lay a concrete fine stone protective layer 8 on the SBS waterproof membrane layer 7. The laying thickness of the concrete fine stone protective layer 8 is generally 150 mm, ensuring that it can cover the upper surface of the rubber sleeve 5.1 to complete the construction of the anti-floating anchor pile structure of the building foundation.

[0025] Compared with the traditional construction method of directly filling the waterproof layer with additional waterproof filler, the entire construction process is simple and easy to operate, the main material technology is mature, and the waterproof construction process is reduced, which can significantly improve the waterproof effect of anti-floating anchor piles; in addition, the construction is less restricted by weather influences, which can achieve the excellent purpose of reducing construction costs and labor costs, improving construction efficiency, and improving economic benefits.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

Claims

1. A building foundation anti-floating anchor pile structure, comprising a pile hole opened on a foundation soil layer, an anti-floating anchor rod inserted into the pile hole, and a concrete pile poured into the pile hole for sealing the anti-floating anchor rod; characterized in that: A ring platform is opened circumferentially at the hole mouth of the pile hole, and a waterproof sealing ring is arranged in the ring platform. The waterproof sealing ring is composed of a rubber sleeve sleeved on the anti-floating anchor rod, and a horizontal rubber gasket connected to the lower edge of the rubber sleeve; wherein the lower surface of the horizontal rubber gasket is flat on the surface of the ring platform, and its thickness is consistent with the depth of the ring platform, and the ring platform outside the horizontal rubber gasket and the cylinder cavity inside the rubber sleeve are filled with caulking asphalt, an SBS waterproof membrane layer is laid on the horizontal rubber gasket and the foundation soil layer, and a concrete fine stone protective layer covering the upper surface of the rubber sleeve is laid on the SBS waterproof membrane layer.

2. The anti-floating anchor pile structure for building foundation according to claim 1, characterized in that: The anti-floating anchor rod is formed by binding three vertical steel bars through stirrups. The upper end of each vertical steel bar extends out of the pile hole, and the end thereof has a steel bar head bent outwardly in a horizontal posture.

3. The anti-floating anchor pile structure for building foundation according to claim 1, characterized in that: The rubber sleeve and the horizontal rubber gasket are integrally formed, and the upper surface of the horizontal rubber gasket is a rough frosted surface.

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