CN203213095U - Underground water supply and drainage building anti-floating structure - Google Patents
Underground water supply and drainage building anti-floating structure Download PDFInfo
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- CN203213095U CN203213095U CN 201320184344 CN201320184344U CN203213095U CN 203213095 U CN203213095 U CN 203213095U CN 201320184344 CN201320184344 CN 201320184344 CN 201320184344 U CN201320184344 U CN 201320184344U CN 203213095 U CN203213095 U CN 203213095U
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Abstract
The utility model belongs to the technical field of underground structural engineering, and particularly relates to an underground water supply and drainage building anti-floating structure. A geotexile layer, a sand inverted filter pad layer and another geotexile layer are sequentially arranged below a bottom board of a building. The underground water supply and drainage building anti-floating structure is characterized in that a valve well is arranged on the periphery of the building, a water filtering pipe network is horizontally laid in the sand inverted filter pad layer, and the water filtering pipe network is communicated with the valve well. The underground water supply and drainage building anti-floating structure has the advantages that the problems that a general anti-floating processing method is long in construction period, high in construction cost and not prone to guaranteeing quality are resolved, the replacing sand inverted filter pad layer can improve foundation bearing force, the water filtering pipe network embedded in the sand inverted filter pad layer and a drainage pipe on the bottom board of the building form a good combined drainage channel, floating force of the underground building is lowered, foundation solidification is accelerated, the floating force and bottom board internal force born by the underground drainage structure is lowered, engineering quantity is reduced, and investment is saved.
Description
Technical field
The utility model belongs to the construction of underground structure technical field, is specifically related to a kind of underground water supply and drainage structure float Structure.
Background technology
In recent years, along with Chinese economic development, the needs of urbanite water consumption are more and more outstanding, the southeastern coastal areas are economically developed, industrial pollution is heavier, so need purify and handle natural river water during plumbing, has occurred a large amount of newly-built and change, extend plumbing water factory thus.In engineering construction in the past, bearing capacity and the sedimentation of ground mainly paid close attention in design for the underground water supply and drainage structure.Because the treatment scale of water factory increases day by day, the monomer scale of construction of water supply and drainage structure is also increasing, and the structure of water factory are embedded in below ground mostly, and structure are again cavity structures that bulky deadweight is lighter, so the anti-floating problem is also more and more outstanding and obvious.Under a lot of conditions, the anti-floating problem becomes the major control factor of design.China's " Water and Waste Water Engineering structure structure design specifications " (GB50069-2002) in clearly regulation structure anti-floating safety factor be 1.05.
In the actual operation process of water supply and drainage structure, often there is the operating mode of all or part of emptying in pond, just relate to the anti-floating problem in sky pond this moment.In the rainy season in spring, summer, occur with thunder shower and torrential rain often, rainfall is big in short-term, the groundwater table fast rise, drainage is not handled properly in addition, is easy to cause the come-up of pond body yet.In case pond body come-up, can cause not only that underground structure pond body base plate floats, breaks, the breaking of infiltration and superstructure, and understand drawing crack or break the aqueduct in turnover pond, cause the serious consequence that supplies water and interrupt, influence city resident's daily life and the work of enterprises and institutions, the repairing of engineering simultaneously also causes huge direct and indirect economic loss.
For solving the impaired problem of above-mentioned pond body come-up, the design of the anti-floating of water supply and drainage structure is mainly adopted ballast and substrate counterweight anti-floating, is increased base plate and choose length outward or set up anti-floating method for designing such as pull-out resistant pile foundation usually.And these several processing methods all have distinct disadvantage, and wherein, ballast and substrate counterweight will certainly increase the internal force of pond body structure, so have to strengthen thickness of slab, set up intensity and crack that the bigger beam lattice in cross section guarantee structure; Choose the problem that length exists backfill quality and compactness control outward by increasing base plate, have big water gaging infiltration and base plate is produced certain buoyancy in the heavy rain time, can increase engineering quantity equally and stay potential safety hazard; Resist come-up by the method that increases uplift pile, have long construction period, complex process, problem such as involve great expense.
So those skilled in the art press for the float Structure of the underground structure of a kind of simple economy of invention.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, a kind of underground water supply and drainage structure float Structure is provided, this float Structure by filter pipe horizontally embedded in the anti-filter bed layer of sandstone and on the structure base plate the vertical permeable hole that arranges to form good composite, water-drain passage.
The utility model purpose realizes being finished by following technical scheme:
A kind of underground water supply and drainage structure float Structure, described structure floor below is followed successively by geotextile layer, the anti-filter bed layer of sandstone and geotextile layer, it is characterized in that described structure outer periphery is equipped with a valve well, level is equipped with filter pipe net in the anti-filter bed layer of described sandstone, and described filter pipe net is connected with described valve well.
Be laid with some vertical permeable holes on the base plate of described structure, described permeable hole by gutter, landfill in described gutter handstone and the non-fine concrete plate that is packaged in described gutter end face constitute.
Described filter pipe net is around being distributed in the filter pipe net that described structure base plate periphery constitutes by filter pipe.
Offer hole or slit on the described filter pipe outside wall surface, be coated with filter screen on the described filter pipe, described filter screen is sticked to form by coarse strainer and fie screen.
Described filter pipe is not less than 1m around being distributed in the peripheral spacing of described structure base plate.
The utility model has the advantages that, adopt the anti-filter bed layer of the bigger sandstone of intensity to replace undisturbed soil, can improve the supporting capacity of ground; The anti-filter bed layer of sandstone can reduce to act on down the subsidiary stress of weak soil layer end face for sleeping in owing to the diffusion of stress, has also just reduced the settling amount of time weak soil layer for sleeping in; Sand and rubble are dank materials, and it provides subbasal draining face, have accelerated ground consolidation and intensity and have improved, and itself also has good water permeability the geotextile layer, constitutes the drain structure thing jointly with the anti-filter bed layer of sandstone; The level that the vertical, horizontal filter pipe of burying underground under the anti-filter bed layer of sandstone around structure and the gutter on the base plate form and vertical composite, water-drain passage can effectively be discharged underground water, reduce the suffered buoyancy of underground water supply and drainage structure and base plate internal force, reduce engineering quantity, saved investment.
Description of drawings
Fig. 1 is layout plan of the present utility model;
Fig. 2 is the I-I generalized section of Fig. 1 in the utility model;
Fig. 3 is the II-II generalized section of Fig. 1 in the utility model;
Fig. 4 is the permeable hole structural representation in the utility model;
Fig. 5 is the permeable hole elevational schematic view in the utility model.
The specific embodiment
Feature of the present utility model and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
As Fig. 1-5, mark 1-13 is respectively among the figure: valve well 1, filter pipe 2, structure 3, filter pipe net 4, permeable hole 5, base plate 6, foundation ditch 7, geotextile layer 8, the anti-filter bed layer 9 of sandstone, the anti-filter bed layer 9.1 of sandstone, the anti-filter bed layer 9.2 of sandstone, the anti-filter bed layer 9.3 of sandstone, geotextile layer 10, non-fine concrete plate 11, handstone 12, gutter 13.
H among Fig. 1 is that filter pipe 2 is around the spacing that is distributed in structure base plate 6 peripheries.
Embodiment: present embodiment is specifically related to a kind of underground water supply and drainage structure float Structure, and this float Structure is used for preventing that the groundwater table fast rise causes the come-up of underground structure 3 or breaks when rainy season of spring, summer.
As Figure 1-3, structure 3 are specially a square pond body structure, be equipped with geotextile layer 8, the anti-filter bed layer 9 of sandstone and geotextile layer 10 below the base plate 6 of pond body successively, wherein the anti-filter bed layer 9 of sandstone specifically is made of the anti-filter bed layer 9.1 of the sandstone of three kinds of different gradation, the anti-filter bed layer 9.2 of sandstone and the anti-filter bed layer 9.3 of sandstone; One jiao of place, periphery at structure 3 is provided with valve well 1, is used for pump drainage underground water; Horizontally embedded in the anti-filter bed layer 9.2 of sandstone have a filter pipe net 4, this filter pipe net 4 is not less than 1m around the spacing H that is distributed in base plate 6 peripheries, and filter pipe net 4 finally is intersected in the valve well 1, with with the underground water dispatch in the anti-filter bed layer 9 of sandstone to valve well 1, wherein the shape of filter pipe net 4 is corresponding with the shape of base plate 6, specifically connect and compose the quadrangle shape by two vertical filter pipes 2 and two horizontal filter pipes 2, flexible joint is adopted in connection between each filter pipe 2, filter pipe 2 can be that plastic pipe also can be steel pipe, for the water in the effective anti-filter bed layer 9 of pump drainage sandstone, outside wall surface at filter pipe 2 offers hole or slot, and be coated with slightly at filter pipe 2, thin two-layer filter screen is to filter out the sandstone in the underground water.
As Fig. 4, shown in 5, when level to filter pipe net 4 rapidly pump drainage rise rapidly groundwater table the time, structure 3 outer groundwater table will be higher than base plate 6, underground structure 3 still exists by underground water jack-up or the risk that is damaged, for the buoyancy of balance underground water to base plate 6, be arranged at intervals with some vertical permeable holes 5 at base plate 6, the main body of permeable hole 5 is gutter 13, be filled with handstone 12 in the inside of gutter 13, and be provided with non-fine concrete plate 11 in order to front cover at the top of gutter 13, has only cement in the batching of non-fine concrete plate 11, water and coarse aggregate, do not have sand, therefore can reach the permeable purpose of porous, avoid underground structure 3 by jack-up or be damaged; Wherein gutter 13 can be pvc pipe, also can be steel pipe.
Shown in Fig. 1-5, below be the concrete construction sequence of this underground water supply and drainage structure float Structure:
1. be the foundation ditch 7 of trapezoidal shape according to the design size excavated section of the base plate 5 in the water supply and drainage structure 3, the precipitation of constructing is simultaneously handled; After being excavated to the design elevation of water supply and drainage structure 3, the thickness according to the anti-filter bed layer 9 of sandstone continues excavation downwards again;
2. the foundation ditch 7 bottom laying geotextile layers 10 that finish at excavation divide 3 layers of anti-filter bed layer 9 of backfill sandstone afterwards, and its bottom is laid the less permeable layer of sand of grating, the i.e. anti-filter bed layer 9.3 of sandstone;
3. the anti-filter bed layer 9.2 of sandstone of medium grating is laid in the middle level of the anti-filter bed layer 9 of sandstone, in the backfilling process of the anti-filter bed layer 9.2 of sandstone, outside the scope of design of structure base plate 5, be not less than the horizontally embedded filter pipe net 4 in 1m place, filter pipe net 4 adopts flexible joint to be formed by connecting by the filter pipe 2 of vertical, horizontal, have hole or slot at tube wall, and coat thick, thin two-layer filter screen at the filter pipe 3 that has hole;
4. the anti-filter bed layer 9.1 of sandstone of maximum grating is filled on the top layer of the anti-filter bed layer 9 of sandstone, and fills to the absolute altitude of the base plate 6 of underground structure 3; Afterwards at the end face laying geotextile layer 8 of the anti-filter bed layer 9.1 of sandstone;
5. in the template of 4 upright structure base plate 6 of the anti-filter bed layer of the sandstone of having laid geotextile layer 8, the reinforcing bar of colligation base plate 6, quincunx pre-buried gutter 13 simultaneously forms the permeable hole 5 of base plate 6; After site inspection is errorless, build underground structure base plate 6, build in the process and to guarantee that gutter 13 vertically runs through base plate 6 all the time and forms permeable hole 5, with as excellent drainage channel;
6. build successively according to operation and finish underground structure 3, this moment, this float Structure facility did not also play a role, and continued carrying out precipitation around the foundation ditch 7;
7. be packed into handstone 12 in the gutter in base plate 6 13, and at the top of gutter 13 non-fine concrete plate 11 front covers;
8. at last around underground structure 3 intersection of vertical, horizontal filter pipe 2 build valve well 1, and with the initial and end two ends of filter pipe net 4 introduce cross with valve well 1 in;
9. at normal operation period, vertical, horizontal filter pipe 2 plays a role, and underground water is gone in the valve 1 by filter pipe net 4 drainages, the underground water in the valve well 1 is extracted out with water pump afterwards again and is entered outdoor house steward; Simultaneously, the gutter of burying underground in the permeable hole 5 of underground water by base plate 6 13 is discharged by handstone 12 and non-fine concrete plate 11, with buoyancy and the internal force that reduces underground structure 3.
The beneficial effect of present embodiment is: replace undisturbed soil by adopting the anti-filter bed layer of the bigger sandstone of intensity, can improve the supporting capacity of ground; The anti-filter bed layer of sandstone can reduce to act on down the subsidiary stress of weak soil layer end face for sleeping in owing to the diffusion of stress, has also just reduced the settling amount of time weak soil layer for sleeping in; Sand and rubble are dank materials, and it provides subbasal draining face, have accelerated ground consolidation and intensity and have improved, and geotextile itself also has good water permeability, constitutes the drain structure thing jointly with the anti-filter bed layer of sandstone; The level that the vertical, horizontal filter pipe of burying underground under the anti-filter bed layer of sandstone around structure and base plate reserving hole form and vertical composite, water-drain passage can effectively be discharged underground water, reduce the suffered buoyancy of underground water supply and drainage structure and base plate internal force, reduce engineering quantity, saved investment.
Claims (5)
1. underground water supply and drainage structure float Structure, described structure floor below is followed successively by geotextile layer, the anti-filter bed layer of sandstone and geotextile layer, it is characterized in that described structure outer periphery is equipped with a valve well, level is equipped with filter pipe net in the anti-filter bed layer of described sandstone, and described filter pipe net is connected with described valve well.
2. a kind of underground water supply and drainage structure float Structure according to claim 1, it is characterized in that being laid with some vertical permeable holes on the base plate of described structure, described permeable hole by gutter, landfill in described gutter handstone and the non-fine concrete plate that is packaged in described gutter end face constitute.
3. a kind of underground water supply and drainage structure float Structure according to claim 1 is characterized in that described filter pipe net is around being distributed in the filter pipe net that described structure base plate periphery constitutes by filter pipe.
4. a kind of underground water supply and drainage structure float Structure according to claim 3 is characterized in that offering hole or slit on the described filter pipe outside wall surface, is coated with filter screen on the described filter pipe, and described filter screen is sticked to form by coarse strainer and fie screen.
5. a kind of underground water supply and drainage structure float Structure according to claim 3 is characterized in that described filter pipe is not less than 1m around being distributed in the peripheral spacing of described structure base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320184344 CN203213095U (en) | 2013-04-14 | 2013-04-14 | Underground water supply and drainage building anti-floating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320184344 CN203213095U (en) | 2013-04-14 | 2013-04-14 | Underground water supply and drainage building anti-floating structure |
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| CN203213095U true CN203213095U (en) | 2013-09-25 |
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| CN 201320184344 Expired - Fee Related CN203213095U (en) | 2013-04-14 | 2013-04-14 | Underground water supply and drainage building anti-floating structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728148A (en) * | 2013-12-31 | 2014-04-16 | 青建集团股份公司 | Anti-floating water head simulation measuring device |
| CN104018511A (en) * | 2014-03-26 | 2014-09-03 | 福州市规划设计研究院 | Construction process of underground construction drainage anti-floating device |
| CN104179201A (en) * | 2014-08-22 | 2014-12-03 | 中国建筑西南勘察设计研究院有限公司 | Anti-floating pressure-relief drainage system |
| CN104234056A (en) * | 2014-09-15 | 2014-12-24 | 上海市政工程设计研究总院（集团）有限公司 | Construction method for preventing deformation of utility tunnel at high-water-level liquefaction region |
| CN104234080A (en) * | 2014-09-15 | 2014-12-24 | 上海市政工程设计研究总院（集团）有限公司 | Utility tunnel structure for preventing deformation at high-water-level liquefaction region |
| CN105064299A (en) * | 2015-09-10 | 2015-11-18 | 国家电网公司 | Detachable draining hole filtering plug and installation method thereof |
| CN107366294A (en) * | 2017-07-07 | 2017-11-21 | 中国十七冶集团有限公司 | A kind of combined drainage system of basement |
| CN112431221A (en) * | 2020-10-15 | 2021-03-02 | 宁波中鼎建筑设计有限公司 | Construction method of underground fire pump room |
-
2013
- 2013-04-14 CN CN 201320184344 patent/CN203213095U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728148A (en) * | 2013-12-31 | 2014-04-16 | 青建集团股份公司 | Anti-floating water head simulation measuring device |
| CN104018511A (en) * | 2014-03-26 | 2014-09-03 | 福州市规划设计研究院 | Construction process of underground construction drainage anti-floating device |
| CN104018511B (en) * | 2014-03-26 | 2015-11-25 | 福州市规划设计研究院 | A kind of construction technology of underground construction drainage and anti-float device |
| CN104179201A (en) * | 2014-08-22 | 2014-12-03 | 中国建筑西南勘察设计研究院有限公司 | Anti-floating pressure-relief drainage system |
| CN104234056A (en) * | 2014-09-15 | 2014-12-24 | 上海市政工程设计研究总院（集团）有限公司 | Construction method for preventing deformation of utility tunnel at high-water-level liquefaction region |
| CN104234080A (en) * | 2014-09-15 | 2014-12-24 | 上海市政工程设计研究总院（集团）有限公司 | Utility tunnel structure for preventing deformation at high-water-level liquefaction region |
| CN104234080B (en) * | 2014-09-15 | 2016-08-24 | 上海市政工程设计研究总院（集团）有限公司 | For preventing the underground pipe gallery structure deformed in high water level liquefaction site |
| CN105064299A (en) * | 2015-09-10 | 2015-11-18 | 国家电网公司 | Detachable draining hole filtering plug and installation method thereof |
| CN107366294A (en) * | 2017-07-07 | 2017-11-21 | 中国十七冶集团有限公司 | A kind of combined drainage system of basement |
| CN112431221A (en) * | 2020-10-15 | 2021-03-02 | 宁波中鼎建筑设计有限公司 | Construction method of underground fire pump room |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20210414 |
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| CF01 | Termination of patent right due to non-payment of annual fee |