CN109930632A - Basement underground water self-balancing anti-floating system based on base-rock shallow slope area - Google Patents
Basement underground water self-balancing anti-floating system based on base-rock shallow slope area Download PDFInfo
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- CN109930632A CN109930632A CN201910151549.3A CN201910151549A CN109930632A CN 109930632 A CN109930632 A CN 109930632A CN 201910151549 A CN201910151549 A CN 201910151549A CN 109930632 A CN109930632 A CN 109930632A
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- basement
- french drain
- underground water
- float
- floating
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 239000011435 rock Substances 0.000 title claims abstract description 35
- 239000002689 soil Substances 0.000 claims abstract description 24
- 239000003673 groundwater Substances 0.000 claims abstract description 9
- 239000003337 fertilizer Substances 0.000 claims description 34
- 230000004888 barrier function Effects 0.000 claims description 25
- 239000004746 geotextile Substances 0.000 claims description 8
- 230000008595 infiltration Effects 0.000 abstract description 8
- 238000001764 infiltration Methods 0.000 abstract description 8
- 239000000758 substrate Substances 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 230000029142 excretion Effects 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The present invention proposes a kind of basement underground water self-balancing anti-floating system based on base-rock shallow slope area, suitable for base-rock shallow area, area, slope, pass through permeable pad, the first french drain and the second french drain, it is sandy soils or the fill stratum that the underground water white-out of the main drainage and anti-float basement to second french drain, which is infiltrated into the described 4th in turn, using the difference in height of the first french drain and the second french drain, it is that sandy soils or fill stratum infiltration coefficient are big using the 4th, it can relatively rapid discharge area of the characteristics of absorbing water as underground water.Since quaternary formation porosity is big; and good penetrability; its infiltration coefficient is 10-20m/d; underground water diffusion in quaternary formation; and the obvious rising of soil layer water level will not be caused, so that the substrate Groundwater pressure for realizing main drainage and anti-float basement can be realized the anti-floating requirement of basement no more than 20kpa by basement self weight; the excretion and supply for realizing underground water itself balance, and are conducive to the protection to environment.
Description
Technical field
The invention belongs to drainage and anti-float technical field more particularly to a kind of basement based on base-rock shallow slope area
It is lauched self-balancing anti-floating system.
Background technique
Have water level high in base-rock shallow area underground water, water is small and underground water change of gradient is larger, and underground water is in veiny
The characteristics of distribution, according to geotechnical engineering investigation experience and bailing test etc., the infiltration coefficient of severely-weathered basement rock is generally less than 0.5m/
D, medium weathering basement rock and micro- weathered rocks are in impermeable water state in crack agensis, and underground water is mainly distributed on bedrock fracture
In, in veiny distribution and non-uniform feature.According to the experience after basement rock excavation of foundation pit, underground water is in natural steaming after excavation of foundation pit
More in the case where hair voluntarily to dissipate, substrate is in dampness.For 10,000 square metres of area of basement substrate, foundation pit side-wall
And substrate, when being basement rock, after its excavation of foundation pit, daily water yield is about 20-40m3/d。
The defence water level that usual surveying unit provides are as follows: slope top is 1.5-2.0 meters of outdoor level ground or less, under slope
Square basement hydrostatic water table is the highest water level on records of rock-soil layer underground water, and slope middle section uses linear difference calculating method meter
It calculates.It is difficult to meet Anti-floating design of building requirement by basement self weight.If using conventional anchor pole measure of anti float, anti-float anchor rod cloth
If amount is big and difficulty of construction is larger, costly, and the Years Of Service of anti-float anchor rod waits to verify at present.Currently, the prior art
Collecting gutter slot is set under sole plate, collect after underground water using by the way of mechanical draining or artificial drainage by underground water from
Lower interior white-out is to municipal pipeline；And the precipitation anti-floating system for the outside white-out that catchments is used then to there is pumping system later maintenance amount
Greatly, as pumping system failure can not work, and in the case where maintenance personnel's discovery not in time, the rise of underground water will increase underground
Water pressure under the bottom plate of room, the cracking of Yi Yinqi basement bottom board, damage.In addition, collecting underground by the way that pipe network is arranged in substrate
Water simultaneously reduces the methods of groundwater level and impacts to groundwater environment in such a way that mechanical means extraction is drained, constantly
Underground water white-out easily causes ground settlement.In consideration of it, it is necessary to provide a kind of basement based on base-rock shallow slope area
Self-balancing anti-floating system is lauched to solve the above problems.
Summary of the invention
In view of the above technical problems, the present invention proposes that a kind of basement underground water based on base-rock shallow slope area is certainly flat
Weigh anti-floating system.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of basement underground water self-balancing anti-floating system based on base-rock shallow slope area, including main drainage and anti-float
Lower room and secondary drainage and anti-float basement, the main drainage and anti-float basement and the secondary drainage and anti-float basement townhouse are arranged；Institute
Stating main drainage and anti-float basement includes anti-floating sole plate and main drainage and anti-float sidewall of basement, the pair drainage and anti-float basement
Including draining sole plate and secondary drainage and anti-float sidewall of basement；The absolute altitude of the anti-floating sole plate is higher than the draining basis
The absolute altitude of bottom plate；It is provided with the first foundation pit fertilizer slot on the outside of the main drainage and anti-float sidewall of basement, the pair drainage and anti-float
The second foundation pit fertilizer slot is provided on the outside of the side wall of lower room；Permeable pad, first base are provided with below the anti-floating sole plate
The bottom for cheating fertile slot is provided with the first french drain, and the permeable pad is connected to first french drain, by the anti-floating sole plate
The underground water of lower section is collected to first french drain by the permeable pad；
It is sandy soils or fill stratum that the lower section of the draining sole plate and the periphery of the second foundation pit fertilizer slot, which are the 4th,
The bottom of the second foundation pit fertilizer slot is provided with the second french drain, and first french drain is connected to and described first with second french drain
The absolute altitude of french drain is higher than the absolute altitude of second french drain, and it is blind that the underground water that first french drain collects is flow to described second certainly
It is sandy soils or the fill stratum that ditch, which infiltrates into the described 4th in turn,.
Preferably, being provided with concrete cushion and waterproof thin between the anti-floating sole plate and the permeable pad
Film.
Preferably, the top of the first foundation pit fertilizer slot and the lower part of the first foundation pit fertilizer slot are provided with water proof
Layer.
Preferably, being provided with anti-filter geotextiles on the downside of the upside of the water barrier and the water barrier.
Preferably, the water barrier is laid with by cohesive soil.
Preferably, the top mark height of the water barrier on the top of the first foundation pit fertilizer slot is in the mark of interface of basement rock
It is high.
Preferably, the permeable pad is laid with by rubble or Weathered Sand.
Preferably, first french drain and second french drain by burying flexible porous tube in rubble or Weathered Sand filling and
At.
Preferably, the anti-floating that the bottom absolute altitude of the first foundation pit fertilizer slot is greater than or equal to secondary drainage and anti-float basement is set up defences
The absolute altitude of water level.
The advantages and positive effects of the present invention are:
1, it is shallow to be suitable for basement rock for the basement underground water self-balancing anti-floating system of the invention based on base-rock shallow slope area
Buried district slope area, by permeable pad, the first french drain and the second french drain, using the difference in height of the first french drain and the second french drain by institute
The underground water white-out of main drainage and anti-float basement is stated to second french drain and then to infiltrate into the described 4th be sandy soils or described
Fill stratum is that sandy soils or fill stratum infiltration coefficient are big using the 4th, can relatively rapid absorption water the characteristics of as underground water
Discharge area.Since quaternary formation porosity is big, and good penetrability, infiltration coefficient 10-20m/d, underground water is the 4th
It is diffusion in soil layer, and the obvious rising of soil layer water level will not be caused, to realizes the substrate of main drainage and anti-float basement
Groundwater pressure is not more than 20kpa, and the anti-floating requirement of basement can be realized by basement self weight, realizes underground water itself
Excretion and supply balance, be conducive to the protection to environment.
2, the basement underground water self-balancing anti-floating system of the invention based on base-rock shallow slope area, described first
The top of foundation pit fertilizer slot and the lower part of the first foundation pit fertilizer slot are provided with water barrier, and the upside of the water barrier and described
Anti-filter geotextiles are provided on the downside of water barrier；The water barrier of lower part completely cuts off in the first foundation pit fertilizer slot to be seeped under underground water；
The anti-filter geotextiles are laid on the upside of the water barrier of lower part to prevent fine grained soil flow from losing；The water barrier on top completely cuts off
Surface water is lower into the first foundation pit fertilizer slot to be seeped.
Detailed description of the invention
Fig. 1 is that the present invention is based on the structural representations of the basement underground water self-balancing anti-floating system in base-rock shallow slope area
Figure；
Fig. 2 is the diagrammatic cross-section of the A-A of Fig. 1；
Fig. 3 is the diagrammatic cross-section of the B-B of Fig. 2；
In figure: 1, main drainage and anti-float basement；11, anti-floating sole plate；12, main drainage and anti-float sidewall of basement；13, thoroughly
Water cushion；14, the first foundation pit fertilizer slot；141, the first french drain；142, water barrier；1421, anti-filter geotextiles；15, concrete cushion and
Waterproof film；2, secondary drainage and anti-float basement；21, sole plate is drained；22, secondary drainage and anti-float sidewall of basement；23, second
Foundation pit fertilizer slot；231, the second french drain；3, anti-uplift ground water level；4, interface of basement rock.
Specific embodiment
In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one
In the case where step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiments
In.
In the description of the present invention, it should be noted that the instruction such as term "inner", "outside", "upper", "lower", "front", "rear"
Orientation or positional relationship be positional relationship based on the figure, be merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and cannot manage
Solution is indication or suggestion relative importance.
As shown in Figure 1 to Figure 3, a kind of basement underground water self-balancing anti-floating system based on base-rock shallow slope area,
Including main drainage and anti-float basement 1 and secondary drainage and anti-float basement 2, the main drainage and anti-float basement 1 and the secondary draining are anti-
Floating 2 townhouse of basement setting；The main drainage and anti-float basement 1 includes anti-floating sole plate 11 and main drainage and anti-float basement side
Wall 12, the pair drainage and anti-float basement 2 include draining sole plate 21 and secondary drainage and anti-float sidewall of basement 22；The anti-floating
The absolute altitude of sole plate 11 is higher than the absolute altitude of the draining sole plate 21；The outside of the main drainage and anti-float sidewall of basement 12
It is provided with the first foundation pit fertilizer slot 14, the bottom absolute altitude of the first foundation pit fertilizer slot 14 is greater than or equal to secondary drainage and anti-float basement 2
(anti-uplift ground water level 4 refers to that basis is built and sets the water table to play a leading role in depth in building operation anti-uplift ground water level 4
The peak level of period) absolute altitude, the outside of the pair drainage and anti-float sidewall of basement 22 is provided with the second foundation pit fertilizer slot 23；Institute
It states and is provided with permeable pad 13 below anti-floating sole plate 11, be provided between the anti-floating sole plate 11 and the permeable pad 13
Concrete cushion and waterproof film 15, the permeable pad is formed by the strong material-paving of the water penetrations such as rubble or Weathered Sand, thick
Degree is 20cm~50cm；The bottom of the first foundation pit fertilizer slot 14 is provided with the first french drain 141, the permeable pad 13 and described the
The underground water of 11 lower section of the anti-floating sole plate is collected to described the by the permeable pad 13 by the connection of one french drain 141
One french drain 141；
The lower section of the draining sole plate 21 and the periphery of the second foundation pit fertilizer slot 23 are sandy soils for the 4th or fill out
Soil layer, the bottom of the second foundation pit fertilizer slot 23 are provided with the second french drain 231, and the landfill of the second french drain 231 is the described 4th
It is that the length of sandy soils or fill stratum should be at least 40m；First french drain 141 is connected to and described with second french drain 231
The absolute altitude of first french drain 141 is higher than the absolute altitude of second french drain 231, the subsurface flow that first french drain 141 is collected
Infiltrating into the described 4th in turn to second french drain 231 is sandy soils or the fill stratum；Wherein, first french drain 141
And second french drain 231 is in the strong material filling of the water penetrations such as rubble or Weathered Sand by burying flexible porous tube and forming, rubble or
Weathered Sand with a thickness of 100cm, the diameter of flexible porous tube is 20cm.
Basement underground water self-balancing anti-floating system based on base-rock shallow slope area of the invention is suitable for base-rock shallow
Area, area, slope, by permeable pad 13, the first french drain 141 and the second french drain 231, utilizes the first french drain 141 and the second french drain 231
Difference in height by the underground water white-out of the main drainage and anti-float basement 1 to second french drain 231 and then infiltrate into described the
Four be sandy soils or the fill stratum, is that sandy soils or fill stratum infiltration coefficient are big using the 4th, can relatively rapid absorption water
The characteristics of discharge area as underground water.Since quaternary formation porosity is big, and good penetrability, infiltration coefficient 10-
20m/d, underground water diffusion in quaternary formation, and the obvious rising of soil layer water level will not be caused, to realize main row
The substrate Groundwater pressure of water anti-floating basement is not more than 20kpa, can realize that the anti-floating of basement is wanted by basement self weight
It asks, the excretion and supply for realizing underground water itself balance, and are conducive to the protection to environment.
Further, the top of the first foundation pit fertilizer slot 14 and the lower part of the first foundation pit fertilizer slot 14 be provided with every
Water layer 142, the water barrier 142 are laid with by impermeable materials such as cohesive soils, the upside of the water barrier 142 and it is described every
The downside of water layer 142 is provided with anti-filter geotextiles 1421；Wherein, the water barrier on the top of the first foundation pit fertilizer slot 14
142 top mark height is in the absolute altitude of interface of basement rock 4.
Basement underground water self-balancing anti-floating system based on base-rock shallow slope area of the invention, in first base
The lower part on the top and the first foundation pit fertilizer slot 14 of cheating fertile slot 14 is provided with water barrier 142, and the water barrier 142 is upper
Side and the downside of the water barrier 142 are provided with anti-filter geotextiles 1421；The water barrier 142 of lower part completely cuts off the first foundation pit
It is seeped under underground water in fertile slot 14；The anti-filter geotextiles 1421 are laid on the upside of the water barrier 142 of lower part to prevent fine grained
Soil flow is lost；The water barrier 142 on top completely cuts off surface water lower infiltration into the first foundation pit fertilizer slot 14.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；The ordinary skill people of this field
Member should be appreciated that it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of skill
Art feature is equivalently replaced；And these are modified or replaceed, each reality of the present invention that it does not separate the essence of the corresponding technical solution
Apply the spirit and scope of a technical solution.
Claims (9)
1. a kind of basement underground water self-balancing anti-floating system based on base-rock shallow slope area, it is characterised in that: including master
Drainage and anti-float basement and secondary drainage and anti-float basement, the main drainage and anti-float basement and the secondary drainage and anti-float basement join
Row's setting；The main drainage and anti-float basement includes anti-floating sole plate and main drainage and anti-float sidewall of basement, the secondary draining
Anti-floating basement includes draining sole plate and secondary drainage and anti-float sidewall of basement；The absolute altitude of the anti-floating sole plate is higher than institute
State the absolute altitude of draining sole plate；The first foundation pit fertilizer slot, the pair are provided on the outside of the main drainage and anti-float sidewall of basement
The second foundation pit fertilizer slot is provided on the outside of drainage and anti-float sidewall of basement；It is provided with permeable pad below the anti-floating sole plate,
The bottom of the first foundation pit fertilizer slot is provided with the first french drain, and the permeable pad is connected to first french drain, will be described anti-
Underground water below floating sole plate is collected to first french drain by the permeable pad；
It is sandy soils or fill stratum that the lower section of the draining sole plate and the periphery of the second foundation pit fertilizer slot, which are the 4th, described
The bottom of second foundation pit fertilizer slot is provided with the second french drain, and first french drain is connected to second french drain and first french drain
Absolute altitude be higher than second french drain absolute altitude, the subsurface flow that first french drain is collected to second french drain is in turn
Infiltrating into the described 4th is sandy soils or the fill stratum.
2. the basement underground water self-balancing anti-floating system according to claim 1 based on base-rock shallow slope area,
It is characterized in that: being provided with concrete cushion and waterproof film between the anti-floating sole plate and the permeable pad.
3. the basement underground water self-balancing anti-floating system according to claim 1 or 2 based on base-rock shallow slope area,
It is characterized by: the top of the first foundation pit fertilizer slot and the lower part of the first foundation pit fertilizer slot are provided with water barrier.
4. the basement underground water self-balancing anti-floating system according to claim 3 based on base-rock shallow slope area,
It is characterized in that: being provided with anti-filter geotextiles on the downside of the upside of the water barrier and the water barrier.
5. the basement underground water self-balancing anti-floating system according to claim 3 based on base-rock shallow slope area,
Be characterized in that: the water barrier is laid with by cohesive soil.
6. the basement underground water self-balancing anti-floating system according to claim 3 based on base-rock shallow slope area,
Be characterized in that: the top mark height of the water barrier on the top of the first foundation pit fertilizer slot is in the absolute altitude of interface of basement rock.
7. the basement underground water self-balancing anti-floating system according to claim 1 based on base-rock shallow slope area,
Be characterized in that: the permeable pad is laid with by rubble or Weathered Sand.
8. the basement underground water self-balancing anti-floating system according to claim 1 based on base-rock shallow slope area,
Be characterized in that: first french drain and second french drain are formed by burying flexible porous tube in rubble or Weathered Sand filling.
9. the basement underground water self-balancing anti-floating system according to claim 1 based on base-rock shallow slope area,
Be characterized in that: the bottom absolute altitude of the first foundation pit fertilizer slot is greater than or equal to the mark of the anti-uplift ground water level of secondary drainage and anti-float basement
It is high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151549.3A CN109930632B (en) | 2019-02-28 | 2019-02-28 | Basement groundwater self-balancing anti-floating system based on bedrock shallow buried slope area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151549.3A CN109930632B (en) | 2019-02-28 | 2019-02-28 | Basement groundwater self-balancing anti-floating system based on bedrock shallow buried slope area |
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| Publication Number | Publication Date |
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| CN109930632A true CN109930632A (en) | 2019-06-25 |
| CN109930632B CN109930632B (en) | 2023-12-22 |
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| CN201910151549.3A Active CN109930632B (en) | 2019-02-28 | 2019-02-28 | Basement groundwater self-balancing anti-floating system based on bedrock shallow buried slope area |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323017A (en) * | 2021-06-08 | 2021-08-31 | 浙大城市学院 | Construction method of side wall fertilizer groove foam concrete backfill system |
| CN113742826A (en) * | 2021-09-02 | 2021-12-03 | 贵州正业工程技术投资有限公司 | Active anti-floating design method based on anti-floating variable water level |
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| CN209652992U (en) * | 2019-02-28 | 2019-11-19 | 青岛市勘察测绘研究院 | Basement underground water self-balancing anti-floating system based on base-rock shallow slope area |
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2019
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| KR100748607B1 (en) * | 2006-09-29 | 2007-08-14 | 박옥교 | The construction method of basement drainage having double drainage canals and the system |
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| CN109930632B (en) | 2023-12-22 |
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