Waterproof structure for anti-floating anchor rod of basement bottom plate

Abstract

The utility model provides a basement bottom plate anti-floating anchor rod waterproof structure which is used for the technical field of underground waterproof construction. The waterproof structure comprises an anti-floating anchor rod, a concrete cushion layer, a sealing ring, a bottom waterproof layer, a sealing body, a water stop ring, a top waterproof layer, a protective layer and a bottom plate. By arranging the sinking groove, the sealing ring, the bottom waterproof layer, the sealing body, the water stop ring and the top waterproof layer, a multi-layer and multi-material waterproof system is formed, permeation of underground water is blocked layer by layer, good sealing performance is achieved, and the leakage problem at the joint of the basement bottom plate anti-floating anchor rod and the basement bottom plate can be effectively solved; meanwhile, by arranging the sinking groove and increasing the thickness of the protection layer, a good protection effect is formed on the waterproof structure, the stability and integrity of the waterproof structure are improved, and the strength and stability of the basement structure are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to underground waterproof construction technical field especially, it is a kind of basement bottom plate anti-floating anchor rod waterproof structure. BACKGROUND

[0002] With the continuous development of urban construction, the development and utilization of underground space are more and more extensive, and the waterproof problem of basement is the key and difficulty in engineering construction. Anti-floating anchor rod is a kind of structure commonly used in basement anti-floating design, but the joint of anti-floating anchor rod and basement bottom plate is prone to leakage problem, which causes erosion and damage to the structure of basement, reduces the structural strength and stability of basement, and seriously affects the use function and safety of basement. The existing technology sets sealing ring, water stop ring and waterproof roll and other structures at the joint of anti-floating anchor rod and basement bottom plate ring, which can play a certain waterproof role, but the structure is difficult to seal tightly and has poor stability and integrity, and is easily affected by external environment to cause the decline of waterproof performance. SUMMARY

[0003] To solve the above technical problems, the utility model provides a kind of basement bottom plate anti-floating anchor rod waterproof structure, can effectively solve the leakage problem of the joint of basement bottom plate anti-floating anchor rod and basement bottom plate, and has good sealing effect and stability.

[0004] The technical scheme adopted by the utility model is: a kind of basement bottom plate anti-floating anchor rod waterproof structure, comprising:

[0005] Anti-floating anchor rod, the anti-floating anchor rod is embedded in the anchoring body;

[0006] Concrete cushion layer, the concrete cushion layer includes sink groove, the bottom end of the sink groove is connected with the anchoring body in an integrated manner;

[0007] Sealing ring, set on the upper portion of the anchoring body, and surround the anti-floating anchor rod;

[0008] Bottom waterproof layer, covering the sealing ring and the sink groove;

[0009] Sealing body, filled in the sink groove above the bottom waterproof layer;

[0010] Water stop ring, set on the upper portion of the sealing body, and surround the anti-floating anchor rod;

[0011] Top waterproof layer, covering the water stop ring and the bottom waterproof layer;

[0012] Protective layer, covering the top waterproof layer;

[0013] Bottom plate, set on the upper portion of the protective layer, the top end of the anti-floating anchor rod is embedded in the bottom plate.

[0014] Further, the side wall thickness of the sunken groove is not less than the thickness of the concrete cushion at other positions.

[0015] Further, the sunken groove is a cylinder with large top and small bottom.

[0016] Further, the sealing ring is a waterproof expansion sealing ring.

[0017] Further, the bottom waterproof layer comprises a waterproof coating layer coated on the upper part of the sealing ring and extending to the surface of the concrete cushion around the sunken groove.

[0018] Further, the bottom waterproof layer further comprises a waterproof additional layer pasted on the surface of the waterproof coating layer inside the sunken groove and extending to the outside of the sunken groove.

[0019] Further, the filling height of the sealing body is lower than the top end of the sunken groove.

[0020] Further, the top waterproof layer comprises sealing pitch coated on the upper part of the water stop ring and waterproof roll material laid on the inside and outside of the sunken groove.

[0021] Further, the thickness of the protective layer at the position corresponding to the sunken groove is greater than that at other positions.

[0022] The construction method of the basement floor anti-floating anchor waterproof structure as described above comprises the following steps:

[0023] Construction of the anti-floating anchor and grouting to form an anchoring body;

[0024] Construction of the foundation cushion to form a sunken groove;

[0025] Setting a sealing ring at the contact position between the anti-floating anchor and the upper surface of the anchoring body;

[0026] Brushing waterproof coating on the inside and around the sunken groove to form a waterproof coating layer;

[0027] Laying a waterproof additional layer on the waterproof coating layer;

[0028] Stuffing a sealing body into the sunken groove;

[0029] Setting a water stop ring at the contact position between the anti-floating anchor and the upper surface of the sealing body;

[0030] Brushing sealing pitch on the water stop ring;

[0031] Laying waterproof roll material in large area;

[0032] Pouring protection layer;

[0033] Pouring base plate.

[0034] The basement bottom plate anti-floating anchor waterproof structure has the advantages and positive effects that: the sinking groove, the sealing ring, the bottom waterproof layer, the sealing body, the water stop ring and the top waterproof layer are arranged, a multi-layer and multi-material waterproof system is formed, the infiltration of underground water is blocked layer by layer, the waterproof structure has good sealing performance, the leakage problem of the basement bottom plate anti-floating anchor and the joint of the basement bottom plate can be effectively solved, the sinking groove is arranged and the thickness of the protection layer is increased, the waterproof structure is well protected, the stability and integrity of the waterproof structure are improved, and the strength and stability of the basement structure are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic diagram of one specific embodiment of the utility model.

[0036] In the drawings:

[0037] 1, anti-floating anchor; 2, anchoring body; 3, concrete cushion layer; 31, sinking groove; 4, sealing ring; 5, bottom waterproof layer; 51, waterproof coating layer; 52, waterproof additional layer; 6, sealing body; 7, water stop ring; 8, top waterproof layer; 81, sealing asphalt; 82, waterproof roll material; 9, protection layer; 10, bottom plate. DETAILED DESCRIPTION

[0038] The embodiments of the utility model will be described below in combination with the drawings.

[0039] As Figure 1 shown, the basement bottom plate anti-floating anchor waterproof structure provided by the application embodiment includes an anti-floating anchor 1, a concrete cushion layer 3, a sealing ring 4, a bottom waterproof layer 5, a sealing body 6, a water stop ring 7, a top waterproof layer 8, a protection layer 9 and a bottom plate 10, and the following is a detailed description of the above-mentioned parts.

[0040] The anti-floating anchor 1 is embedded in the anchoring body 2, and the bottom end thereof extends to the deep part of the soil body, so as to improve the anti-floating capacity of the basement bottom plate 10 and other structures;

[0041] The concrete cushion layer 3 is used to connect the anchoring body 2 and the anti-floating anchor 1, and includes a sinking groove 31, the bottom end of the sinking groove 31 is connected with the anchoring body 2 in one body, the sinking groove 31 is arranged around the anti-floating anchor 1, and is the basis of the waterproof structure, the waterproof structure is arranged below the height of the concrete cushion layer 3 through the sinking groove 31, so as to improve the stability of the waterproof structure, and a waterproof barrier along the vertical direction of the concrete cushion layer 3 is formed, the connecting part of the anti-floating anchor 1 and the waterproof structure is limited within a certain range, so as to prevent the transverse infiltration of underground water and affect the waterproof effect of other parts;

[0042] The sealing ring 4 is arranged on the upper part of the anchoring body 2 and surrounds the anti-floating anchor rod 1, and is used for sealing the contact area between the anti-floating anchor rod 1 and the upper part of the anchoring body 2, so as to prevent underground water from seeping upward along the anti-floating anchor rod 1;

[0043] The bottom waterproof layer 5 covers the sealing ring 4 and the sunken groove 31, and provides a preliminary waterproof barrier;

[0044] The sealing body 6 is filled in the sunken groove 31 above the bottom waterproof layer 5, can be in close contact with the two, and forms a good sealing effect;

[0045] The water stop ring 7 is arranged on the upper part of the sealing body 6 and surrounds the anti-floating anchor rod 1, and further prevents underground water from seeping upward along the anti-floating anchor rod 1;

[0046] The top waterproof layer 8 covers the water stop ring 7 and the bottom waterproof layer 5, and forms another waterproof barrier;

[0047] The protective layer 9 covers the top waterproof layer 8, and provides physical protection for the waterproof structure layer;

[0048] The bottom plate 10 is arranged above the protective layer 9, and the top end of the anti-floating anchor rod 1 is embedded in the bottom plate 10.

[0049] The utility model discloses a multilayer waterproof structure is set up, including sunken groove 31, sealing ring 4, bottom waterproof layer 5, sealing body 6, water stop ring 7 and top waterproof layer 8, the seepage of underground water is blocked layer by layer, through the mutual cooperation of these technical features, the leakage problem of the junction of the anti-floating anchor rod 1 and the basement bottom plate 10 can be effectively solved.

[0050] Further, the side wall thickness of the sunken groove 31 is not less than the thickness of the concrete cushion 3 at other positions. This design ensures that the sunken groove 31 will not cause a decrease in structural strength due to insufficient thickness when under stress. Specifically, the side wall of the sunken groove 31 can be cast with concrete of the same or higher strength grade as the concrete cushion 3 to ensure that its thickness meets the design requirements, further improving the stability and safety of the overall structure. For example, the thickness of the side wall of the groove can be controlled by formwork during construction, and the proportioning and construction process is strictly controlled during concrete pouring to ensure that the thickness and strength of the side wall of the groove meet the expected effect, which is beneficial to ensuring the overall stability of the multilayer waterproof structure.

[0051] Further, the sinking groove 31 in the present application can be set in various shapes as needed. To ensure the continuity and integrity of the waterproof structure layer, the inner wall of the sinking groove 31 is preferably designed in a smooth structure. The preferred structure of the sinking groove 31 proposed in the embodiment of the present application is a cylindrical structure with a large upper part and a small lower part. Such a structure design also helps to increase the contact area of the bottom waterproof layer 5 and the top waterproof layer 8 with the sinking groove 31, thereby improving the sealing effect and reducing the risk of leakage, so as to make the waterproof effect more durable and reliable.

[0052] As a preferred embodiment, the sinking groove 31 can be realized by a mold forming method, which can ensure the shape accuracy of the sinking groove 31 and ensure that its shape meets the waterproof requirements, and is convenient for workers to construct.

[0053] Further, the sealing ring 4 in the present application preferably adopts a waterproof expansion type sealing ring 4, which can fill the gap at the junction of the anti-floating anchor 1 and the sinking groove 31 after swelling in water, thereby improving the waterproof performance. By using the waterproof expansion type sealing ring 4, the problem of insufficient waterproof performance at the junction of the anti-floating anchor 1 and the basement floor 10 can be effectively solved, the waterproof sealing effect is enhanced, and the occurrence of leakage is avoided.

[0054] In a specific embodiment, the sealing ring 4 can be made of water-swelling rubber material or polymer material with water-swelling properties, and the shape and size of the sealing ring 4 are customized according to the radius of the anti-floating anchor 1 to ensure that it can provide reliable waterproof performance.

[0055] Further, the bottom waterproof layer 5 in the present application includes a waterproof coating layer 51, which is coated on the upper part of the sealing ring 4 and extends to the surface of the concrete cushion layer 3 around the sinking groove 31. The waterproof coating layer 51 functions to form a waterproof barrier by covering the sealing ring 4, the inner wall of the sinking groove 31 and the surface of the concrete cushion layer 3 around it, which can effectively prevent groundwater from penetrating above the concrete cushion layer 3 and improve the waterproof effect at the junction of the anti-floating anchor 1 and the basement floor 10.

[0056] The waterproof coating layer 51 can use various types of waterproof coatings, such as polyurethane waterproof coating, acrylic waterproof coating or other coatings with good waterproof performance. These coatings have strong adhesion and ductility, and can form a continuous and uniform coating on the sealing ring 4 and the surface of the concrete cushion layer 3. In addition, the thickness of the waterproof coating layer 51 can be adjusted according to actual needs to ensure that it has sufficient waterproof performance and durability.

[0057] Further, the bottom waterproof layer 5 in the application further comprises a waterproof additional layer 52, which is attached to the surface of the waterproof coating layer 51 in the sunken groove 31 and extends to the outside of the sunken groove 31; the waterproof additional layer 52 enhances the sealing and stability of the waterproof layer through the combination with the waterproof coating layer 51; specifically, the waterproof additional layer 52 can adopt a high-molecular waterproof roll 82, a rubber waterproof film or other materials with high waterproof performance, has good ductility and tear resistance, can adapt to the deformation of the sunken groove 31, significantly improves the overall performance of the bottom waterproof layer 5, reduces the risk of groundwater infiltration, and enhances the durability and reliability of the waterproof structure.

[0058] Further, the filling height of the sealing body 6 in the application is lower than the top end of the sunken groove 31; by controlling the filling height of the sealing body 6 to be lower than the top end of the sunken groove 31, sufficient space is reserved for the subsequent setting of the top waterproof layer 8, which is conducive to ensuring the stability and effectiveness of the sealing body 6 and the top waterproof layer 8 in the waterproof structure; as a preferred embodiment, the sealing body 6 is made of waterproof oil paste, which can be closely connected with the bottom and the surrounding waterproof additional layer 52 to form an integral structure, further improving the stability and waterproof effect of the waterproof structure.

[0059] Further, the top waterproof layer 8 in the application comprises a sealing asphalt 81 and a waterproof roll 82; the sealing asphalt 81 is coated on the upper part of the water stop ring 7, and the waterproof roll 82 is laid in a large area on the inside and outside of the sunken groove 31; the sealing asphalt 81 provides good sealing performance, and the large-area laying of the waterproof roll 82 connects the waterproof roll 82 in the sunken groove 31 and the waterproof roll 82 on the other concrete cushion layer 3 into one body, which can form a continuous waterproof barrier, further enhancing the overall waterproof performance, and having higher stability and durability, reducing the risk of leakage.

[0060] Preferably, the thickness of the protective layer 9 corresponding to the position of the sunken groove 31 is greater than that of other parts; by increasing the thickness of the protective layer 9 corresponding to the position of the sunken groove 31, stronger protection effect can be provided to the top waterproof layer 8, the sealing body 6 and the bottom waterproof layer 5 below, and the contact area between the anti-floating anchor rod 1 and the protective layer 9 is increased, so that a more stable connection is formed between the anti-floating anchor rod 1, the protective layer 9, the top waterproof layer 8, the sealing body 6, the bottom waterproof layer 5 and the anchoring body 2, ensuring the long-term stability and reliability of the waterproof structure.

[0061] The construction method of the basement bottom plate anti-floating anchor rod waterproof structure provided in the application specifically comprises the following steps:

[0062] S1, the anti-floating anchor rod 1 is constructed, and the grouting forms the anchoring body 2;

[0063] Specifically, a mounting hole is dug at a preset position of the anti-floating anchor rod 1, then the anti-floating anchor rod 1 is implanted in the mounting hole, then the mounting hole is backfilled with gravel in the depth range, and finally a cement slurry is injected from the bottom of the hole by using a grouting process to form a gravel grouting body, which is the anchoring body 2; during the construction of the anti-floating anchor rod 1, the length, diameter and spacing of the anti-floating anchor rod 1 should be ensured to meet the design requirements, and after the grouting is completed, the anchor rod is naturally cured for 14 days, and the anchor rod is tested to be qualified before the foundation cushion construction is started.

[0064] S2, foundation cushion construction, forming a sinking groove 31;

[0065] Specifically, the shape of the sinking groove 31 is formed when the foundation cushion is formed, and then the concrete is poured to ensure that the inner wall of the formed sinking groove 31 is smooth and flat, so as to facilitate the subsequent brushing of waterproof paint and the laying of the waterproof additional layer 52, and to ensure the construction quality.

[0066] S3, a sealing ring 4 is arranged at the contact position between the anti-floating anchor rod 1 and the upper surface of the anchoring body 2;

[0067] Specifically, the sealing ring 4 is customized according to the size of the anti-floating anchor rod 1 to ensure that the sealing ring 4 is in close contact with the anti-floating anchor rod 1.

[0068] S4, waterproof paint is brushed on the inside and around the sinking groove 31 to form a waterproof paint layer 51;

[0069] Specifically, the waterproof paint is brushed to the surface of the foundation cushion outside the sinking groove 31.

[0070] S5, a waterproof additional layer 52 is laid on the waterproof paint layer 51;

[0071] Specifically, the laying range of the waterproof additional layer 52 is greater than the brushing range of the waterproof paint.

[0072] S6, a sealing body 6 is filled in the sinking groove 31;

[0073] The filling height of the sealing body 6 should be strictly controlled during filling, and the sealing body 6 should be filled densely and connected closely with the waterproof additional layer 52 to form a whole.

[0074] S7, a water stop ring 7 is arranged at the contact position between the anti-floating anchor rod 1 and the upper surface of the sealing body 6 to prevent water and groundwater from seeping in through the contact position between the anti-floating anchor rod 1 and the sealing body 6;

[0075] S8, sealing asphalt 81 is brushed on the water stop ring 7 to further enhance the sealing performance;

[0076] S9, a large area of waterproof coiled material 82 is laid to cover the entire concrete cushion 3 to form good integrity and improve the waterproof effect;

[0077] S10, pouring the protection layer 9 to form good protection for the waterproof structure below;

[0078] S11, pouring the bottom plate 10.

[0079] Thus, through the multi-level and multi-material waterproof system, the waterproof problem of the anti-floating anchor rod 1 and the basement bottom plate 10 is effectively solved, and the waterproof performance and stability of the basement structure are improved. Compared with the prior art, by arranging the sinking groove 31, the sealing ring 4, the water stop ring 7 and the multi-layer waterproof material, an efficient waterproof system is formed, the problems of poor sealing and poor stability in the prior art are overcome, and the use function and safety of the basement are ensured.

[0080] The technical scheme of the present application will be described in detail below through a specific embodiment;

[0081] Embodiment one

[0082] A basement bottom plate anti-floating anchor rod waterproof structure, comprising an anti-floating anchor rod 1, a concrete cushion layer 3, a sealing ring 4, a bottom waterproof layer 5, a sealing body 6, a water stop ring 7, a top waterproof layer 8, a protection layer 9 and a bottom plate 10, wherein,

[0083] The bottom end of the anti-floating anchor rod 1 is embedded in the anchoring body 2, and the anchoring body 2 is a gravel grouting body, the size of the gravel is 0.5-1cm, the grouting slurry strength is M30, and the grouting pressure is not less than 2MPa;

[0084] The concrete cushion layer 3 adopts 10cm thick C15 concrete including a sinking groove 31, the bottom end of the sinking groove 31 is connected with the anchoring body 2 in one body, the sinking groove 31 is a cylinder with large upper part and small lower part, the depth is 20cm, the lower opening diameter is 10cm, and the upper opening diameter is 30cm;

[0085] The sealing ring 4 is arranged on the upper part of the anchoring body 2 and surrounds the anti-floating anchor rod 1, and adopts a water-swelling sealing ring 4;

[0086] The bottom waterproof layer 5 covers the sealing ring 4 and the sinking groove 31, and comprises a waterproof coating layer 51 and a waterproof additional layer 52, wherein the waterproof coating layer 51 adopts non-solidified asphalt waterproof coating, and the brushing thickness is 2mm; the waterproof additional layer 52 adopts 4mm thick SBS poly-tire fat modified asphalt waterproof roll material;

[0087] The sealing body 6 is filled in the sinking groove 31 above the bottom waterproof layer 5, and adopts waterproof oil paste, and the filling depth is 15cm;

[0088] The water stop ring 7 is arranged on the upper part of the sealing body 6 and surrounds the anti-floating anchor rod 1;

[0089] The top waterproof layer 8 covers the water stop ring 7 and the bottom waterproof layer 5, and comprises a sealing pitch 81 and a waterproof roll 82, wherein the waterproof roll 82 adopts a 4mm-thick SBS poly-tire pitch modified asphalt waterproof roll and is constructed in a large-area laying mode;

[0090] The protection layer 9 covers the top waterproof layer 8 and adopts a 5cm-thick fine stone concrete;

[0091] The bottom plate 10 is arranged above the protection layer 9, and the top end of the anti-floating anchor rod 1 is embedded in the bottom plate 10.

[0092] The sinking groove, the sealing ring, the bottom waterproof layer, the sealing body, the water stop ring and the top waterproof layer are arranged, a multi-level and multi-material waterproof system is formed, the infiltration of groundwater is blocked layer by layer, the sealing property is good, the leakage problem at the joint between the anti-floating anchor rod of the basement bottom plate and the basement bottom plate can be effectively solved, the sinking groove and the thickness of the protection layer are arranged, the waterproof structure is well protected, the stability of the waterproof structure is improved, and the strength and stability of the basement structure are ensured.

[0093] The above embodiment of the utility model is described in detail, but the content is only the preferred embodiment of the utility model, and cannot be considered as limiting the scope of the utility model. Any equivalent change and improvement within the scope of the utility model application should still belong to the patent coverage range of the utility model.

Claims

1. A waterproofing construction for a basement floor anti-floating anchor rod, characterized by, The utility model relates to a kind of anti-floating anchor rod and concrete cushion, and the utility model discloses the following technical scheme: Anti-floating anchor rod embedded in anchoring body; Concrete cushion comprising sunken groove, the bottom end of the sunken groove is integrated with the anchoring body; Sealing ring is arranged on the upper portion of the anchoring body and surrounds the anti-floating anchor rod; Bottom waterproof layer covers the sealing ring and the sunken groove; Sealing body is filled in the sunken groove above the bottom waterproof layer; Water-stop ring is arranged on the upper portion of the sealing body and surrounds the anti-floating anchor rod; Top waterproof layer covers the water-stop ring and the bottom waterproof layer; Protective layer covers the top waterproof layer; Bottom plate is arranged above the protective layer, and the top end of the anti-floating anchor rod is embedded in the bottom plate.

2. The basement slab anti-floating anchor rod waterproof construction according to claim 1, characterized by: The thickness of the side wall of the sunken groove is not less than the thickness of the concrete cushion in other parts.

3. The basement floor anti-floating anchor rod waterproof structure according to claim 1 or 2, characterized by: The sunken groove is a cylinder with large upper part and small lower part.

4. The basement slab anti-floating anchor rod waterproof construction according to claim 3, characterized by: The sealing ring is a waterproof expansion type sealing ring.

5. The basement slab anti-floating anchor rod waterproof construction according to claim 4, characterized by: The bottom waterproof layer comprises a waterproof coating layer, which is coated on the upper portion of the sealing ring and extends to the surface of the concrete cushion around the sunken groove.

6. The basement slab anti-floating anchor rod waterproof construction according to claim 5, characterized by: The bottom waterproof layer further comprises a waterproof additional layer, which is pasted on the surface of the waterproof coating layer in the sunken groove and extends to the outside of the sunken groove.

7. The basement floor anti-floating anchor rod waterproofing construction according to claim 4, 5 or 6, characterized in that: The filling height of the sealing body is lower than the top end of the sunken groove.

8. The basement slab anti-floating anchor rod waterproof construction according to claim 7, characterized by: The top waterproof layer comprises sealing asphalt and waterproof roll material, the sealing asphalt is coated on the upper portion of the water-stop ring, and the waterproof roll material is laid in large area on the inside and outside of the sunken groove.

9. The basement slab anti-floating anchor rod waterproof construction according to claim 8, characterized by: The thickness of the protective layer corresponding to the position of the sunken groove is greater than that of other parts.

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