CN218643404U - Hidden drainage structure for basement - Google Patents

Abstract

The utility model relates to a building waterproof field discloses a hidden drainage structures of basement. The structure comprises a concrete bottom plate, a groove, a drainage groove, a blocky filler, an isolation layer, a recovery layer, a drainage joint and a water collection well; offer the slot on the concrete bottom plate, the water drainage tank is placed in the slot with the opening down, and cubic filler is filled in the space between water drainage tank and slot, and the top of water drainage tank and cubic filler sets gradually the isolation layer and resumes the layer. The grooves comprise a branch groove and a main flow groove, and the bottom of the grooves is provided with a slope; the drainage grooves comprise a branch drainage groove and a main drainage groove which are communicated with each other through drainage joints; the tributary water drainage grooves in the tributary grooves collect water in the leakage area to the shared main flow water drainage grooves in the main flow grooves, and then the water is drained to the shared water collecting well. The scheme is used for solving the problem of dispersion of the layout of the hidden drainage structure, and achieves the effects of reducing the construction amount of the hidden drainage structure and improving the utilization rate of the hidden drainage structure.

Description

Hidden drainage structure for basement

Technical Field

The utility model relates to a building waterproof field, more specifically relates to a basement drainage structures that hides.

Background

With the rapid development of urbanization in China, underground building structures such as underground parking lots, underground shopping malls, civil air defense projects and the like are widely applied. However, in the construction process of the underground building structure, the concrete bottom plate of the basement inevitably leaks due to the combination of various factors such as insufficient materials, design, construction and maintenance. And it is often difficult to find the original points of leakage due to the fine stone concrete protective layer covering the concrete floor surface. Therefore, the problem of leakage cannot be thoroughly solved by adopting a single grouting and plugging treatment mode, a dark drainage measure needs to be set to guide underground seepage water to a water collecting well, and then the seepage water is drained through a pumping device, so that the use function of the basement is guaranteed not to be influenced due to the fact that water is not accumulated on the ground. The general construction process of the existing concealed drainage structure is as follows: and (3) forming a groove on the concrete bottom plate, then paving a drainage plate or gravel or a drainage groove for drainage and drainage in the groove, and finally backfilling fine aggregate concrete.

The adoption of the hidden drainage structure of the drainage plate leads to general drainage effect due to the shorter lug boss of the drainage plate. And the rim of a cup of its boss is narrower again, and at concreting in-process, concrete can't make every rim of a cup all filled up, leads to the drain bar atress inhomogeneous, and then when the slot receives the shearing force effect, leads to the drain bar to damage easily.

The hidden drainage structure of the broken stones is adopted, and in the process that water leakage passes through the concrete bottom plate, calcium carbonate generated by hydration in the structure can be brought out, so that the calcium carbonate is attached and accumulated on the broken stones to form calcium carbonate solids, gaps among the broken stones are blocked after a period of time, and the drainage channel is caused to lose efficacy.

The structure strength, drainage capacity, drainage reliability and the like of the hidden drainage structure adopting the drainage channel are superior to those of a drainage plate or a gravel hidden drainage structure. However, since the dark drainage structure is not planned according to the leakage condition to form a drainage network, the arrangement of the grooves, the drainage channels and the water collection wells is dispersed and the construction is repeated. For example, a plurality of grooves for connecting different leakage areas to the collector wells are respectively excavated and a plurality of drainage channels are provided, or the periphery of each leakage area is close to the corresponding excavated groove and collector well.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming at least one of above-mentioned prior art not enough, provides an adopt drainage tank's the dark drainage structures of basement for solve the problem of dark drainage structures overall arrangement dispersion, reach the construction volume that reduces dark drainage structures, improve the effect of dark drainage structures's utilization ratio.

The technical scheme adopted by the utility model is that the basement hidden drainage structure comprises a concrete bottom plate, a groove, a drainage groove, a block-shaped filler, an isolation layer, a recovery layer, a drainage joint and a water collection well; offer the slot on the concrete bottom plate, the water drainage tank is placed in the slot with the opening down, and cubic filler is filled in the space between water drainage tank and slot, and the top of water drainage tank and cubic filler sets gradually the isolation layer and resumes the layer. The grooves comprise a branch groove and a main flow groove, and the bottom of the grooves is provided with a slope; the drainage grooves comprise a branch drainage groove and a main drainage groove which are communicated with each other through drainage joints; the tributary water drainage grooves in the tributary grooves collect water in the leakage area to the shared main flow water drainage grooves in the main flow grooves, and then the water is drained to the shared water collecting well.

In the scheme, a plurality of permeation areas are determined according to the water leakage condition or the surface crack condition of the concrete bottom plate, and then a plurality of branch flow grooves and a shared main flow groove are excavated and arranged based on the building layout and the shortest path principle of the basement. The bottom of the branch flow groove and/or the main flow groove is provided with a slope. The end of the branch flow groove connected with the leakage area is a higher point, and the end of the main flow groove connected with the water collecting well is a lower point. The tributary water drainage tank is placed in the tributary slot, the main flow water drainage tank is placed in the main flow slot, and the tributary water drainage tank and the main flow water drainage tank are communicated with each other through the water drainage joint. The regional water level of seepage is in higher position, under the action of gravity, converges to the mainstream water drainage tank along tributary water drainage tank to further unified drainage to the sump pit of sharing along the mainstream water drainage tank of sharing. The scheme connects the seepage area and the water collecting well in a mode of combining the main flow and the branch flow, so that the grooves, the drainage grooves and the water collecting well are arranged in a concentrated mode, and the problem of scattered layout of a hidden drainage structure is solved. On the one hand, each leakage area only needs to be drained to the main flow drainage groove through the branch flow drainage groove, and does not need to be drained to a single or a plurality of water collecting wells independently, so that the total path of the drainage groove is reduced, and the construction amount of a dark drainage structure is reduced. On the other hand, the main flow drainage groove and the water collecting well are shared, water in any leakage area can be drained, the use frequency of the main flow drainage groove and the water collecting well is increased, and therefore the utilization rate of the dark drainage structure is improved.

In this scheme, the specification of mainstream slot and mainstream water drainage tank is generally greater than the specification of tributary slot and tributary water drainage tank. When the amount of water in the leakage area is small, the specifications of the front and the rear parts can be the same. In addition, generally speaking, the drain tank has standardized length, and two pairs of overlap joint between the tributary drain tank is placed in the tributary slot, also can connect through the drainage joint of switching in order to adapt to the position of turning in the tributary slot between the tributary drain tank, and the mainstream drain tank is the same. The branch water drainage tank is connected with the main water drainage tank through a three-way water drainage joint or a four-way water drainage joint. Moreover, for the dark drainage structure of the leakage area, if the area of the leakage area is large, the drainage plate or the gravel mode can be adopted; if the area of the leakage area is small, the branch drainage groove can be directly extended and covered.

Preferably, the bottom lateral wall of water drainage tank is equipped with the water inlet, and a plurality of water inlet is along water drainage tank's length direction interval distribution. After the concrete floor leaks, a small amount of water may also be present around the perimeter of the leak area. The water inlet on the side wall of the bottom can enable accumulated water in the groove and along the groove to flow into the drainage groove and be further drained to the water collecting well. Furthermore, the water inlet may be single-sided or double-sided, as the case may be.

Further, the bottom edges of the two sides of the drainage groove are provided with bottom plates, and the bottom plates horizontally extend from the inside of the drainage groove to the outside. The drainage channel is arranged with an opening facing downwards, and a block-shaped filler is arranged outside the drainage channel. The both sides of open-ended, the bottom edge is equipped with the outside bottom plate that extends promptly, can make cubic filler further compress tightly water drainage tank, avoids water drainage tank atress back to produce the aversion.

Preferably, the tributary channels communicate with the main channel at an oblique angle; the branch drainage groove is connected with the main flow drainage groove through the drainage joint at an inclined angle. The connection of inclination makes the infiltration water among the tributary water drainage tank converge into the mainstream water drainage tank with the mode of acute angle in, has reduced water impact, improves the efficiency of drainage. Correspondingly, the drainage joint is a three-way drainage joint or a four-way drainage joint which is obliquely communicated.

Optionally, the drainage channel further comprises a vent pipe, the vent pipe is arranged at the top of the drainage channel or the drainage connector, and the vent pipe is communicated with the inside of the drainage channel or the drainage connector and the outside of the groove. The ventilating pipe is additionally arranged in the column root or wall area of the basement, and the moisture regain phenomenon of the groove and the line thereof can be effectively reduced by matching with a fresh air system. In addition, the inside condition that water drainage tank or drainage connect can be observed effectively to the permeability cell, avoids appearing not drainage or blocking phenomenon, and the secondary mediation also can be carried out to the later stage, guarantees drainage effect.

In the scheme, the concrete bottom plate comprises a concrete surface layer and a concrete bottom layer, and the depth of the groove is larger than or equal to the thickness of the concrete surface layer. The concrete bottom layer is poured during the construction of the basement building, and the concrete surface layer is the fine stone concrete protective layer poured at the later stage. The leak points in the leak area are usually cracks in the concrete bottom layer. Therefore, the depth of the trench should be excavated at least to the bottom layer of the concrete to find a definite leakage point for repairing and draining.

Furthermore, the width of the groove is similar to that of the drainage groove, so that the limiting effect on the drainage groove is better realized. Generally, the width of the groove is different from the width of the drain groove by 0 to 5mm.

In this scheme, the slope of ditch slot bottom generally need use cement mortar to set up looks for the slope layer and realizes. For the trench excavated to the concrete bottom layer, if the concrete bottom layer is provided with a slope, the trench can be directly utilized. The slope of the concrete bottom layer is the slope of the bottom of the groove. Correspondingly, the water collecting well should be positioned on the side with the lower gradient of the concrete bottom layer.

Preferably, the filling height of the blocky filler is more than or equal to the height of the drainage groove, so that the surface paved by the isolation layer is approximately a horizontal plane, the recovery layer can be ensured to uniformly transmit pressure downwards, and the stress condition of the drainage groove is improved.

Preferably, the restoration layer is filled with micro-expansive concrete with a height flush with the surface of the concrete bottom slab. Wherein, the micro-expansion concrete can be further mixed with a waterproof agent to prevent accumulated water in the groove from permeating outwards.

Optionally, the waterproof layer is arranged on the isolation layer and extends upwards along the side wall of the groove.

Compared with the prior art, the beneficial effects of the utility model are that:

the scheme connects the seepage area and the water collecting well in a mode of combining the main flow and the branch flow, so that the grooves, the drainage grooves and the water collecting well are arranged in a concentrated mode, and the problem of scattered layout of a hidden drainage structure is solved. On the one hand, each leakage area only needs to be drained to a main flow drainage groove through a branch flow drainage groove, and does not need to be drained to a single or a plurality of water collecting wells independently, so that the total path of the drainage groove is reduced, and the construction amount of a dark drainage structure is reduced. On the other hand, the main flow drainage groove and the water collecting well are shared, so that water in any leakage area can be drained, the use frequency of the main flow drainage groove and the water collecting well is increased, and the utilization rate of the dark drainage structure is improved.

Drawings

Fig. 1 is a plan view of embodiment 1 of the present invention.

Fig. 2 is a cross-sectional view of embodiment 1 of the present invention.

Fig. 3 is a sectional view of the position of the vent pipe according to embodiment 1 of the present invention.

Fig. 4 is a perspective view of a drain tank according to embodiment 1 of the present invention.

Description of reference numerals: the concrete bottom plate comprises a concrete bottom plate 10, a concrete surface layer 11, a concrete bottom layer 12, a groove 20, a branch groove 21, a main flow groove 22, a drainage groove 30, a branch drainage groove 31, a main flow drainage groove 32, a water inlet 33, a bottom plate 34, a drainage joint 40, a ventilation pipe 50, a block-shaped filler 60, an isolation layer 70, a restoration layer 80 and a water collecting well 90.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1 and fig. 2, the present embodiment is a basement dark drainage structure, which includes a concrete bottom plate 10, a trench 20, a drainage groove 30, a block-shaped filler 60, an isolation layer 70, a restoration layer 80, a drainage joint 40 and a collector well 90; a groove 20 is formed in a concrete bottom plate 10, a drainage channel 30 is placed in the groove 20 with an opening facing downwards, a block-shaped filler 60 is filled in a gap between the drainage channel 30 and the groove 20, and an isolation layer 70 and a recovery layer 80 are sequentially arranged above the drainage channel 30 and the block-shaped filler 60. The grooves 20 comprise a branch flow groove 21 and a main flow groove 22, and the bottoms of the branch flow grooves and the main flow grooves are provided with slopes; the drainage channel 30 comprises a branch drainage channel 31 and a main drainage channel 32 which are communicated with each other through a drainage joint 40; the branch drainage channel 31 in the branch channel 21 collects the water in the leak area to the common main drainage channel 32 in the main channel 22 and leads to the common water collection well 90.

In the scheme, a plurality of permeable areas are determined according to the water leakage condition or the surface crack condition of the concrete bottom plate 10, and then a plurality of branch grooves 21 and a common main flow groove 22 are excavated and arranged based on the building layout and the shortest path principle of the basement. The bottom of the tributary channel 21 and/or the main channel 22 is provided with a slope. The end of the tributary channel 21 connected to the leakage area is a higher point and the end of the main channel 22 connected to the water collection well 90 is a lower point. The branch drain groove 31 is placed in the branch trench 21, the main flow drain groove 32 is placed in the main flow trench 22, and the branch drain groove 31 and the main flow drain groove 32 communicate with each other through the drain joint 40. The water in the leakage area is located at a higher position, and is converged to the main flow drainage channel 32 along the branch flow drainage channel 31 under the action of gravity, and is further uniformly drained to the common water collecting well 90 along the common main flow drainage channel 32. According to the scheme, the leakage area and the water collecting well 90 are connected in a manner of combining main flow and branch flow, so that the grooves 20, the drainage grooves 30 and the water collecting well 90 are intensively arranged, and the problem of scattered layout of a dark drainage structure is solved. On one hand, each leakage area only needs to be guided to the main flow drainage groove 32 through the branch flow drainage groove 31, and does not need to be guided to a single or a plurality of water collecting wells 90 independently, so that the total path of the drainage groove 30 is reduced, and the construction amount of a dark drainage structure is reduced. On the other hand, since the main drainage groove 32 and the water collection well 90 are shared, water in any leakage area can be drained, and the frequency of use of the main drainage groove 32 and the water collection well 90 is increased, thereby improving the utilization rate of the dark drainage structure.

In this embodiment, the specifications of the main flow channel 22 and the main flow drain groove 32 are generally larger than those of the branch channel 21 and the branch drain groove 31. When the amount of water in the leakage area is small, the specifications of the front and the rear parts can be the same. In addition, generally speaking, the drainage grooves 30 have standardized lengths, the branch drainage grooves 31 are overlapped in pairs and placed in the branch grooves 21, the branch drainage grooves 31 can be connected through the switched drainage joints to adapt to the turning positions in the branch grooves 21, and the main drainage grooves 32 are the same. The branch drainage groove 31 and the main drainage groove 32 are connected by a three-way drainage joint or a four-way drainage joint. Moreover, for the dark drainage structure of the leakage area, if the area of the leakage area is large, the drainage plate or the gravel mode can be adopted; if the area of the leakage area is small, the branch drain groove 31 may be directly extended and covered.

As shown in fig. 4, preferably, the bottom side wall of the drainage channel 30 is provided with a water inlet 33, and a plurality of water inlets 33 are distributed at intervals along the length direction of the drainage channel 30. After a leak in the concrete floor 10 occurs, a small amount of water may also be present around the perimeter of the leak area. The water inlets 33 in the bottom side wall allow the accumulated water in and along the trough 20 to flow into the drainage channel 30 and be directed to the sump 90. Furthermore, the water inlet 33 may be single-sided or double-sided, as the case may be.

Further, bottom plates 34 are provided at both side bottom edges of the drain groove 30, and the bottom plates 34 horizontally extend from the inside to the outside of the drain groove 30. The drain channel 30 is provided with an opening facing downward, and a block-shaped filler 60 is provided outside the drain channel 30. The two sides of the opening, namely the bottom edge, are provided with the bottom plates 34 extending outwards, so that the block-shaped filler 60 can further compress the drainage channel 30, and the drainage channel 30 is prevented from being displaced after being stressed.

Preferably, the branch flow groove 21 communicates with the main flow groove 22 at an inclined angle; the branch drain groove 31 is connected to the main flow drain groove 32 through the drain joint 40 at an inclined angle. The connection of inclination makes the infiltration water in tributary water drainage tank 31 collect in the mainstream water drainage tank 32 with the mode of acute angle, has reduced water impact, improves the efficiency of drainage. Correspondingly, the drain joint 40 is a three-way drain joint or a four-way drain joint which is communicated obliquely.

In this embodiment, the drainage groove 30 is a n-shaped groove with a standardized length, which is made of PP (polypropylene). It adopts interior reinforcing structure and bionical thick bamboo tube formula design, is the wavy of a height through longitudinal section, has formed the effect of similar strengthening rib, improves its whole bearing capacity. The both ends of water drainage tank 30 or drainage joint 40 are equipped with the buckle structure that is used for connecting, combine adaptability strong, and the junction is difficult to the perk, when satisfying water drainage tank 30 rigid connection, again can quick assembly disassembly, improve site operation efficiency. The drain groove 30 and the drain joint 40 are formed by injection molding of the same material.

As shown in fig. 3, optionally, a vent pipe 50 is further included, the vent pipe 50 is disposed on the top of the drain groove 30 or the drain connector 40, and the vent pipe 50 communicates the inside of the drain groove 30 or the drain connector 40 with the outside of the groove 20. The ventilating pipe 50 is additionally arranged in the column root or wall area of the basement, and the phenomenon of moisture regain of the groove 20 and the line of the groove can be effectively reduced by matching with a fresh air system. In addition, the ventilation pipe 50 can effectively observe the internal conditions of the drainage groove 30 or the drainage joint 40, so that the phenomenon of no drainage or blockage is avoided, secondary dredging can be performed at the later stage, and the drainage effect is ensured. In this embodiment, the air permeable pipe 50 is a circular pipe, the lower portion of which is sleeved with the top of the drainage channel 30 or the drainage connector 40, and the upper portion of which passes through the restoration layer 80 and is flush with the upper surface of the concrete bottom plate 10.

As shown in fig. 2, in the present embodiment, the concrete bottom plate 10 includes a concrete surface layer 11 and a concrete bottom layer 12, and the depth of the groove 20 is greater than or equal to the thickness of the concrete surface layer 11. The concrete bottom layer 12 is poured during the construction of the basement building, and the concrete surface layer 11 is the fine stone concrete protective layer poured at the later stage. The leak points in the leak area are typically cracks in the concrete bottom layer 12. Therefore, the depth of the trench 20 should be excavated at least to the concrete bottom layer 12 to find a precise leakage point for repair and drainage.

Further, the width of the groove 20 is similar to the width of the drainage groove 30, so as to better realize the limiting effect on the drainage groove 30. Generally, the width of the groove 20 is different from the width of the drain groove 30 by a range of 0 to 5mm.

In this scheme, the slope of slot 20 bottom generally needs to use cement mortar to set up and look for the slope layer and realize. The trench 20 excavated into the concrete floor 12 can be directly used if the concrete floor 12 itself has a slope. The slope of the concrete bottom layer 12 is the slope of the bottom of the trench 20. Correspondingly, the water collection well 90 should be located on the side of the concrete bottom layer 12 having a lower slope.

Preferably, the filling height of the block-shaped filler 60 is greater than or equal to the height of the drainage channel 30, so that the surface on which the isolation layer 70 is laid is approximately horizontal, thereby ensuring that the recovery layer 80 can uniformly transfer pressure downwards and improving the stress condition of the drainage channel 30.

Preferably, the rehabilitation layer 80 is filled with micro-expansive concrete, the height of which is flush with the surface of the concrete bottom plate 10. Wherein, the micro-expansion concrete can be further mixed with a waterproof agent to avoid the seeper in the groove 20 from permeating outwards.

Optionally, a waterproof layer is further included, and the waterproof layer is disposed on the isolation layer 70 and extends upward along the side wall of the trench 20.

In this embodiment, the bulk filler 60 is crushed stone or a porous plastic block. The block-shaped packing 60 fills both sides and the top of the drain groove 30. The isolation layer 70 is 300g of geotextile and is laid on the block-shaped filler 60. The restoration layer 80 is poured on the isolation layer 70, and the waterproof agent can be a cement-based capillary crystalline waterproof agent.

In general, the construction process of the basement dark drainage structure can refer to the following steps:

step 1, according to the leakage and crack conditions of the basement concrete bottom plate 10, the specification of the drainage groove 30 is selected, the path from a leakage area to the water collecting well 90 is planned, and the elastic line is used for positioning.

And 2, cutting along the path (plate surface cracks and elastic line positioning lines) to form a groove 20, excavating a cutting part by adopting a percussion drill, and cleaning the cutting part out of the field.

And 3, searching leakage water cracks after cutting, and plugging.

And 4, according to the position and the path trend of the water collecting well 90, carrying out cement mortar leveling and slope finding treatment.

And step 5, arranging a drainage channel 30 and a drainage connector 40 in the ditch 20, arranging block-shaped fillers 60 at two sides of the ditch 20, and covering the surface of the filler with geotextile as an isolation layer 70.

And 6, pouring the high-grade micro-expansion concrete as the recovery layer 80, adding a waterproof agent, and curing and forming.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A hidden drainage structure of a basement comprises a concrete bottom plate, a groove, a drainage channel, a block-shaped filler, an isolation layer, a recovery layer, a drainage joint and a water collection well; the concrete bottom plate is provided with a groove, the drainage groove is placed in the groove with an opening facing downwards, the block-shaped filler is filled in a gap between the drainage groove and the groove, and an isolation layer and a recovery layer are sequentially arranged above the drainage groove and the block-shaped filler; the device is characterized in that the grooves comprise a branch groove and a main flow groove, and the bottom of the grooves is provided with a slope; the drainage grooves comprise a branch drainage groove and a main drainage groove which are communicated with each other through drainage joints; the tributary water drainage grooves in the tributary grooves collect water in the leakage area to the shared main flow water drainage grooves in the main flow grooves, and then the water is drained to the shared water collecting well.

2. The underground drainage structure of the basement as claimed in claim 1, wherein the side wall of the bottom of the drainage channel is provided with water inlets, and a plurality of the water inlets are spaced along the length direction of the drainage channel.

3. The basement dark drainage structure of claim 2, wherein the bottom edges of the two sides of the drainage channel are provided with bottom plates, and the bottom plates horizontally extend from the inside to the outside of the drainage channel.

4. The basement dark drainage structure of claim 1, wherein the branch flow groove is communicated with the main flow groove at an inclined angle; the branch water discharge groove is connected with the main flow water discharge groove through the water discharge joint at an inclined angle.

5. The basement dark drainage structure of claim 1, further comprising a vent pipe, wherein the vent pipe is arranged on the top of the drainage groove or the drainage connector, and the vent pipe is communicated with the inside of the drainage groove or the drainage connector and the outside of the groove.

6. The basement dark drainage structure of claim 1, wherein the concrete bottom plate comprises a concrete surface layer and a concrete bottom layer, and the depth of the groove is greater than or equal to the thickness of the concrete surface layer.

7. The underground drainage structure of claim 6, wherein the concrete bottom layer has a slope, and the water collecting well is located at a side of the concrete bottom layer with a lower slope.

8. The structure of claim 1, wherein the filling height of the block-shaped filler is greater than or equal to the height of the drainage channel.

9. The basement dark drainage structure of claim 1, wherein the restoration layer is filled with micro-expansive concrete, and the height of the restoration layer is flush with the surface of the concrete bottom plate.

10. The basement dark drainage structure of claim 1, further comprising a waterproof layer disposed on the isolation layer and extending upward along the side walls of the trench.

Images