CN219298284U - Beam-slab raft foundation leakage maintenance structure - Google Patents
Beam-slab raft foundation leakage maintenance structure Download PDFInfo
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- CN219298284U CN219298284U CN202220516795.1U CN202220516795U CN219298284U CN 219298284 U CN219298284 U CN 219298284U CN 202220516795 U CN202220516795 U CN 202220516795U CN 219298284 U CN219298284 U CN 219298284U
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Abstract
The utility model discloses a maintenance structure for leakage of a beam-slab raft foundation, which is characterized in that a waterproof structure is arranged on a structural base layer of the beam-slab raft foundation, and the waterproof structure comprises a waterproof layer paved above the structural base layer; the waterproof layer is characterized in that a drainage structure is arranged above the waterproof layer and comprises a drain pipe buried above the waterproof layer. According to the utility model, through the arrangement of the waterproof structure and the drainage structure, three modes of grouting, rigid-flexible combination and drainage measures are combined to solve the problem of leakage of the beam-slab raft foundation, so that the leakage of the beam-slab raft foundation can be effectively maintained, and the sealing and discharging mode is adopted, so that the practicability and the practicability are high.
Description
Technical Field
The utility model belongs to the field of engineering waterproofing, and particularly relates to a beam-slab raft foundation leakage maintenance structure.
Background
At present, the leakage condition of a beam-slab raft foundation is frequently different from that of a traditional raft foundation, the beam-slab raft foundation is divided into a plurality of cross-shaped areas by the existence of foundation beams, soil backfill is generally adopted, backfill soil depth is unequal, but if the foundation is not timely found out due to leakage, the leakage process is generally waterproof layer breakage, beam-slab raft foundation crack, backfill soil, basement surface layer and leakage out of the ground, compared with the traditional raft foundation leakage, the leakage point can be clearly found out, the beam-slab raft foundation has high leakage maintenance cost, the backfill soil needs to be removed, leakage points need to be searched, leakage blocking is carried out, the backfill soil is recovered, but due to the fact that a bottom plate waterproof layer is damaged, underground water exists under a concrete structure, and if new cracks are generated, leakage hidden danger is extremely large.
The patent of publication number CN210342002U discloses a basement raft seepage processing structure, including setting up the rectangle water drainage tank on the raft surface layer, rectangle water drainage tank cuts the shaping along raft surface layer crack, rectangle water drainage tank communicates to dewatering well, and the pouring is filled with the slurry layer in the rectangle water drainage tank, is provided with at least one drainage runner between slurry layer and the rectangle water drainage tank bottom, and drainage runner sets up along rectangle water drainage tank longitudinal direction, drainage runner one end intercommunication to dewatering well. The patent with publication number CN205530382U discloses a waterproof protection layer of a lower back beam, which structurally comprises a foundation soil layer, wherein a U-shaped groove is arranged on the foundation soil layer; the base layer is covered on the upper side of the foundation soil layer; the waterproof layer is covered on the upper side of the base layer; the waterproof protection layer covers the upper side of the waterproof layer and comprises a top protection layer, a bottom protection layer and a side protection layer, wherein the top protection layer covers the upper side of the waterproof layer at the top of the U-shaped groove, the bottom protection layer covers the upper side of the waterproof layer at the bottom in the U-shaped groove, and the side protection layer covers the upper side of the waterproof layer on the side wall of the U-shaped groove.
However, the defects of the special structure of the beam-slab raft foundation in maintenance when leakage occurs are not considered in the scheme.
Disclosure of Invention
In view of the above problems, the present utility model provides a repairing structure for seepage of a beam-slab raft foundation, which includes a waterproof structure above the beam-slab raft foundation, and a drainage structure above the waterproof structure.
The beam-slab raft foundation comprises a structure base layer, wherein the structure base layer is arranged at the bottommost part of the whole beam-slab raft foundation;
and a foundation beam is arranged above the structural base layer and divides the structural base layer into a plurality of cross-shaped areas.
The beam-slab raft foundation further comprises a plurality of structural columns, wherein the structural columns are arranged on the foundation beam, and a wall body is arranged between every two adjacent structural columns.
And a rubber asphalt waterproof coating layer is arranged at the junction of the foundation beam and the wall body, and the thickness of the rubber asphalt waterproof coating layer is 1-2mm.
Further, the waterproof structure comprises a waterproof layer arranged on the surface of the structural base layer;
the waterproof layer comprises a cement waterproof mortar layer arranged above the structural base layer and an asphalt waterproof coiled material layer arranged above the cement waterproof mortar layer;
the waterproof structure further comprises a reinforced concrete layer, and the reinforced concrete layer is arranged above the asphalt waterproof coiled material layer;
the cement waterproof mortar layer is adhered to the asphalt waterproof coiled material layer.
Further, the asphalt waterproof coiled material layer is crossed over a plurality of cross-shaped areas above the structural base layer, and stubble throwing treatment is carried out at the joint of the asphalt waterproof coiled material layer, the structural column and the wall body.
Further, the cement waterproof mortar layer is polymer cement waterproof mortar, and the thickness is 3-6mm;
the asphalt waterproof coiled material layer is a high polymer modified asphalt waterproof coiled material, and the thickness is 3-6mm.
Further, the drainage structure comprises a drainage pipe arranged above the waterproof layer;
the drain pipe is arranged at a position 400-550mm away from the upper surface of the waterproof layer, and the diameter of the drain pipe is less than or equal to 10mm; the pipe orifice of the drain pipe is provided with a filtering measure and a non-return measure.
Further, the length of the drain pipe on the side far from the water collecting well is longer than the length of the drain pipe on the side near the water collecting well.
Further, the drainage structure further comprises a counter beam and a drainage groove;
the inverted beam is arranged at the wall, and the elevation of the upper surface of the inverted beam is flush with the elevation of the top of the foundation beam;
the water drainage tank is arranged at the top of the inverted beam, and is arranged along the wall body towards the water collection well reserved in the room.
The utility model has the beneficial effects that:
the utility model removes backfill soil and ground structures in a beam slab type raft foundation beam region, searches leakage points, grouting and plugging, sequentially and outwards sets a cement waterproof mortar layer and an asphalt waterproof coiled material layer on a structural base layer, forms a waterproof layer on a back surface in a rigid-flexible combination mode, prevents groundwater from jacking the waterproof layer, and sets a reinforced concrete compacting layer, thus being a waterproof measure;
if the beam-slab raft foundation generates new cracks in future use, groundwater enters under the waterproof layer, if the water pressure is too high, the groundwater flows along the asphalt waterproof coiled material layer to drain into a drainage groove newly arranged around the foundation to a water collecting well, which is one of drainage measures; if the waterproof layer fails, groundwater enters the well-shaped area, when the water collecting height of the seepage area is higher than that of a drain pipe buried on the foundation beam, the drain pipe can drain accumulated water of the seepage area to the side of a near water collecting well according to a siphonage phenomenon, and the water collecting area is kept in the area because the near water collecting well area has no seepage phenomenon, and when the water collecting flows to the water collecting well area, all accumulated water areas are uniformly drained by the water collecting well through the siphonage effect in a linked siphonage mode, so that the drainage measures II are taken.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a spar raft foundation according to an embodiment of the present utility model;
FIG. 2 shows a schematic view of a waterproof structure in an embodiment of the present utility model;
FIG. 3 is a schematic view showing the overall structure of a waterproof structure and a drainage structure in an embodiment of the present utility model;
fig. 4 shows a schematic view of a drainage structure in an embodiment of the present utility model.
1. A structural base layer; 2. a foundation beam; 3. a structural column; 4. a cross-shaped area; 5. a wall body; 6. a cement waterproof mortar layer; 7. an asphalt waterproof coiled material layer; 8. cement mortar; 9. a reinforced concrete layer; 10. an indoor decoration surface; 11. a drain pipe; 12. a protective layer; 13. a drainage channel; 14. a rubber asphalt waterproof paint layer; 15. and (5) a reversing beam.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Aiming at the defects existing in the prior art when the leakage of the beam-slab raft foundation is maintained, the utility model provides a maintenance structure for the leakage of the beam-slab raft foundation.
In this embodiment, the beam-slab raft foundation shown in fig. 1 is taken as an example, and the maintenance structure will be described.
Referring to fig. 1, a beam-slab raft foundation comprises a foundation beam 2 and a structural foundation layer 1, wherein the structural foundation layer 1 is positioned at the bottommost part of the whole beam-slab raft foundation and is a reinforced concrete structure; the foundation beam 2 is arranged above the structural base layer 1, the structural base layer 1 is divided into a plurality of cross areas 4 by the foundation beam 2, a plurality of structural columns 3 are arranged on the foundation beam 2, and walls 5 are arranged between the structural columns 3.
Referring to fig. 2 and 3, the maintenance structure of the leakage of the beam-slab raft foundation comprises a waterproof structure and a drainage structure, the waterproof structure redesigns the structural base layer 1 and the foundation beam 2, a waterproof layer is added to the beam-slab raft foundation, the waterproof layer is arranged above the structural base layer 1, and the waterproof layer comprises a cement waterproof mortar layer 6 and an asphalt waterproof coiled material layer 7. The cement waterproof mortar layer 6 is poured on the surface of the structural base layer 1, and cement mortar 8 is filled at the corner where the waterproof mortar layer 6 contacts the structural base layer 1. The asphalt waterproof coiled material layer 7 is arranged above the cement waterproof mortar layer 6, the asphalt waterproof coiled material layer 7 is overturned over the plurality of cross areas 4 above the structural base layer 1, the asphalt waterproof coiled material layer 7 is subjected to stubble throwing treatment at the positions of the plurality of structural columns 3 and the wall body 5, and preferably, the asphalt waterproof coiled material layer 7 is higher than the indoor decorative surface 10 at the position of the structural columns 3 by more than 1 m. The asphalt waterproof coiled material layer 7 is constructed by adopting a hot melting method and is fully adhered with the cement waterproof mortar layer 6. The cement waterproof mortar layer 6 is made of polymer cement waterproof mortar, and has a thickness of about 3-6mm, preferably 5mm in this embodiment; the asphalt waterproof coiled material layer 7 uses a high polymer modified asphalt waterproof coiled material, the thickness is about 3-6mm, and the preferred embodiment is 4mm; the waterproof layer further improves the waterproof performance of the waterproof layer through rigid-flexible combination of the cement waterproof mortar layer 6 and the asphalt waterproof coiled material layer 7. The reinforced concrete layer 9 is poured above the asphalt waterproof coiled material layer 7, the reinforced concrete layer 9 is used for preventing groundwater from jacking up the waterproof layer, and sealing paste is arranged at the joint of the reinforced concrete layer 9 and the structural column 3.
Referring to fig. 4, the drainage structure includes a drainage pipe 11, and the drainage pipe 11 is disposed above a waterproof layer. Specifically, the drain pipe 11 is disposed 400-550mm above the waterproof layer and spaced from the upper surface of the waterproof layer, and in this embodiment, 500mm is preferable, and the diameter of the drain pipe 11 is 10mm or less. The drain pipe 11 is slightly higher than the reinforced concrete layer 9, and in this embodiment, the height is preferably 20mm, and the mouth of the drain pipe 11 is provided with a filtering measure and a check measure, so that the drain pipe 11 can be prevented from being blocked by foreign matters and from flowing backwards, the filtering measure can adopt a structure such as a filtering sieve plate, and the check measure can adopt a structure such as a check valve. The length of the pipe of the drain pipe 11 on the side far from the water collecting well is longer than the length of the pipe of the drain pipe 11 on the side close to the water collecting well (i.e., the water inlet position of the drain pipe 11 is lower than the water outlet position), and the water outlet of the drain pipe 11 is led to the water collecting well (not shown in the figure) arranged indoors. The protective layer 12 is arranged above the drain pipe 11 to prevent the drain pipe 11 from being damaged by external force. The drain pipe 11 can prevent that the waterproof layer from ineffectively, when the water logging in the well word district 4 overflows indoor, and the seepage region catchment is high when being higher than drain pipe 11 buried in the foundation beam 2, according to the siphon phenomenon, drain pipe 11 can be with seepage region ponding to the sump pit, and because the sump pit region does not have the seepage phenomenon, the water collecting can keep somewhere in the sump pit region, when the water collecting flows to the sump pit region, through siphon effect, the siphon effect of all ponding regional linkage, unified drainage by the sump pit.
Referring to fig. 4, a counter beam 15 is arranged at the wall 5, the elevation of the upper surface of the counter beam 15 is flush with the elevation of the top of the foundation beam 2, a drainage tank 13 is arranged at the top of the counter beam 15, the drainage tank 13 is arranged along the wall 5, and the drainage tank 13 faces to a water collecting well reserved in a room. The juncture of the foundation beam 2 and the wall 5 is provided with a rubber asphalt waterproof coating layer 14, preferably, the rubber asphalt waterproof coating layer 14 is 1.5mm, and the contact position of the drainage groove 13 and the reinforced concrete layer 9 is provided with sealing paste.
The utility model provides a construction mode of a maintenance structure, which comprises the following steps:
the backfill soil at the upper part of the beam plate raft foundation and the indoor ground are removed, so that conditions are provided for waterproof maintenance;
searching leakage points in the beam slab raft area, performing plugging construction by grouting water prevention, and reinforcing structural cracks; the construction method comprises the steps of (1) carrying out rigid waterproof layer construction on a structural base layer 1 by adopting a thick polymer cement waterproof mortar layer 6; the asphalt waterproof coiled material layer 7 is adopted to cross a plurality of cross beams, and head collecting treatment is carried out at the contact position of the asphalt waterproof coiled material layer 7, the structural column 3 and the wall body 5; the reinforced concrete casting cross beam area with the thickness of more than or equal to 200mm is adopted, the underground water is prevented from jacking the asphalt waterproof coiled material layer 7, meanwhile, the height of the casting reverse beam 15 is flush with that of the foundation beam 2, the stubble-throwing asphalt waterproof coiled material layer 7 is downwards turned over to be bonded with the top of the reverse beam 15 through hot melting (sand pressing or sand scraping treatment is needed), a water collecting well is arranged indoors, and a drainage tank 13 is arranged at the top of the reverse beam 15.
According to the utility model, through the arrangement of the waterproof structure and the drainage structure, three modes of grouting, rigid-flexible combination and drainage measures are combined to solve the problem of leakage of the beam-slab raft foundation, so that the leakage of the beam-slab raft foundation can be effectively maintained, and the sealing and discharging mode is adopted, so that the practicability and the practicability are high.
Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (9)
1. A maintenance structure for beam-slab raft foundation leakage is characterized in that,
the beam-slab raft foundation comprises a structural base layer (1), wherein the structural base layer (1) is arranged at the bottommost part of the whole beam-slab raft foundation; a foundation beam (2) is arranged above the structural base layer (1), and the foundation beam (2) divides the structural base layer (1) into a plurality of cross-shaped areas (4);
the maintenance structure comprises a waterproof structure above the beam-slab raft foundation and a drainage structure arranged above the waterproof structure; wherein the waterproof structure comprises a waterproof layer arranged on the surface of the structural base layer (1); the waterproof layer comprises a cement waterproof mortar layer (6) arranged above the structural base layer (1) and an asphalt waterproof coiled material layer (7) arranged above the cement waterproof mortar layer (6); the drainage structure comprises a drainage pipe (11) arranged above the waterproof layer.
2. The beam-slab raft foundation leak repair structure of claim 1, wherein,
the beam-slab raft foundation further comprises a plurality of structural columns (3), wherein the structural columns (3) are arranged on the foundation beam (2), and a wall body (5) is arranged between every two adjacent structural columns (3).
3. The beam-slab raft foundation leak repair structure of claim 2, wherein,
the juncture of the foundation beam (2) and the wall body (5) is provided with a rubber asphalt waterproof coating layer (14), and the thickness of the rubber asphalt waterproof coating layer (14) is 1-2mm.
4. The beam-slab raft foundation leak repair structure of claim 1, wherein,
the waterproof structure further comprises a reinforced concrete layer (9), and the reinforced concrete layer (9) is arranged above the asphalt waterproof coiled material layer (7);
the cement waterproof mortar layer (6) is adhered with the asphalt waterproof coiled material layer (7).
5. The beam-slab raft foundation leak repair structure of claim 2, wherein,
the asphalt waterproof coiled material layer (7) is crossed over a plurality of cross-shaped areas (4) above the structural base layer (1), and the joint of the asphalt waterproof coiled material layer (7) and the structural column (3) as well as the wall body (5) is subjected to stubble throwing treatment.
6. The beam-slab raft foundation leak repair structure of claim 5, wherein,
the cement waterproof mortar layer (6) is polymer cement waterproof mortar, and the thickness is 3-6mm;
the asphalt waterproof coiled material layer (7) is a high polymer modified asphalt waterproof coiled material, and the thickness is 3-6mm.
7. The beam-slab raft foundation leak repair structure of claim 1, wherein,
the drain pipe (11) is arranged at a position 400-550mm away from the upper surface of the waterproof layer, and the diameter of the drain pipe (11) is less than or equal to 10mm; the pipe orifice of the drain pipe (11) is provided with a filtering measure and a non-return measure.
8. The beam-slab raft foundation leak repair structure of claim 7, wherein,
the length of the pipeline of the drain pipe (11) on the side far away from the water collecting well is longer than that of the pipeline of the drain pipe (11) on the side close to the water collecting well.
9. The beam-slab raft foundation leak repair structure of claim 2, wherein,
the drainage structure also comprises a counter beam (15) and a drainage groove (13);
the inverted beam (15) is arranged at the wall body (5), and the elevation of the upper surface of the inverted beam (15) is flush with the elevation of the top of the foundation beam (2);
the drainage tank (13) is arranged at the top of the counter beam (15), and the drainage tank (13) is arranged along the wall body (5) towards a water collecting well reserved in a room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220516795.1U CN219298284U (en) | 2022-03-10 | 2022-03-10 | Beam-slab raft foundation leakage maintenance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220516795.1U CN219298284U (en) | 2022-03-10 | 2022-03-10 | Beam-slab raft foundation leakage maintenance structure |
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| CN219298284U true CN219298284U (en) | 2023-07-04 |
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| CN202220516795.1U Active CN219298284U (en) | 2022-03-10 | 2022-03-10 | Beam-slab raft foundation leakage maintenance structure |
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