CN105625448A - Underground water drainage method and device for underground building - Google Patents
Underground water drainage method and device for underground building Download PDFInfo
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- CN105625448A CN105625448A CN201410615967.0A CN201410615967A CN105625448A CN 105625448 A CN105625448 A CN 105625448A CN 201410615967 A CN201410615967 A CN 201410615967A CN 105625448 A CN105625448 A CN 105625448A
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- water
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Abstract
The invention discloses an underground water drainage method and device for an underground building. A water-permeable soil layer (1) is constructed in a foundation pit backfill area between an underground building outer wall (6) and an underground building foundation pit boundary (4), the foundation pit backfill area is completely filled with the water-permeable soil layer (1) in the horizontal direction, only one limited thickness range exists in the vertical direction, and the water-permeable soil layer (1) is communicated with at least two water outlets (2). The elevation of the water outlets (2) can adjust the water level of underground water of an underground building foundation pit, the underground water flows to the low ground, galleries and wells or pipe ditches beyond the foundation pit boundary (4) through the water outlets (2), or the underground water penetrates through the underground building outer wall (6) and flows to the underground building indoor ground, galleries and wells or pipe ditches. When the underground building foundation pit and soil layers (3) around the underground building foundation pit are in the geological environment of impermeable soil layers, the elevation of the water-permeable soil layer (1) and the water outlets (2) can be adjusted according to the maximum water pressure borne by an underground building bottom plate (5).
Description
Technical field
The present invention relates to the water discharge method of a kind of subsoil water and device, particularly relate to water discharge method and the device of a kind of underground structure subsoil water.
Background technology
In a lot of situations, under Groundwater, building has harm, for instance: seepage action of ground water forms water pressure--i.e. buoyancy upwards below the base plate of hypogee, it is easy to cause underground structure to float. In order to eliminate this harm, prior art have employed the method for various draining, mainly has following three classes: a, directly holes at hypogee exterior wall and base plate, makes subsoil water directly flow to indoor, hypogee then pump drainage from boring; B, outside the exterior wall of hypogee arrange french drain add water-pumping/draining system again; C, beyond the exterior wall of hypogee and below base plate fill coarse granule sandstone add water-pumping/draining system again.
This three classes method is respectively arranged with deficiency: (one) a class method needs to bore the thorough draining of many holes guarantee at exterior wall and base plate, therefore uses function to have certain impact hypogee; (2) b class method often requires that french drain is arranged on exterior wall position bottom foundation ditch, and contiguous foundation soil is likely to be subject to french drain spilling water infiltration and becomes softening, and for natural foundation, it will be affected safely; (3) c class method to consume a large amount of coarse granule sandstone, it is impossible to taking excavation of foundation pit earth material out on the spot and make backfill soil, earthwork transportation amount is very big; (4) b class and c class method need extra increase water-pumping/draining system, also to increase the longtime running maintenance cost of these equipment.
Below the foundation ditch of hypogee and when soil layer is impervious stratum about, the source of subsoil water is mainly the surface soil layer backwater in foundation ditch backfill region, hypogee, the main hole along inside of banketing of surface soil layer backwater infiltrates into bottom foundation ditch downwards, then infiltrates into the hole of below hypogee base plate. If construct a drainage blanket in centre of banketing, subsoil water is derived foundation ditch backfill region, the pressure of the downward seepage flow of subsoil water that just can dissipate.
Summary of the invention
The invention provides the water discharge method of a kind of simple and reliable underground structure subsoil water and device, it is possible to be used for regulating groundwater level.
Technical scheme a: permeable ground (1) is constructed in the foundation ditch backfill region between hypogee exterior wall (6) and foundation ditch border, hypogee (4), described permeable ground (1) is full of whole foundation ditches backfill region in the horizontal direction, vertically exists only in a limited thickness scope and keeps certain distance with hypogee base plate (5); Described permeable ground (1) at least two outlets (2) of connection; The absolute altitude of described outlet (2) is identical, it is possible to adjustably descend the groundwater level of building foundation pit; Described outlet (2) or lead to the lower ground face beyond foundation ditch border (4), mine pit or pipe trench (9), or lead to flooring, hypogee, mine pit or pipe trench (Fig. 1, Fig. 2) through hypogee exterior wall (6); Described permeable ground (1) thickness >=150mm, can be made up of coarse granule sandstone (include but not limited to medium sand, coarse sand, gravelly sand, dust, circle gravel, rubble, cobble, block stone, waft stone), it is possible to be made up of the draining board of horizontal positioned; Also can arrange one in the middle of described permeable ground (1) and with the horizontal aqueduct of porous and be communicated to outlet (2); The present invention is for below the foundation ditch of hypogee and when soil layer (3) is the geological environment of impervious stratum about, and the distance between described outlet (2) and hypogee base plate (5) adjustably builds down the maximum water pressure that base plate (5) can bear.
Owing to hypogee is often fitted with water-pumping/draining system, being discharged to the indoor water in hypogee by outlet (2) can discharge beyond hypogee by the provisioned water-pumping/draining system in hypogee itself.
The invention have the benefit that
Described permeable ground (1) backfills region at whole foundation ditches in the horizontal direction all to be existed, the subsoil water making foundation ditch backfill area interstitial flow is arrived described permeable ground (1) and all can all change by horizontal direction seepage flow afterwards and freely be discharged by outlet (2), it is possible to be used for regulating groundwater level;
Described permeable ground (1) vertically exists only in a limited thickness scope, make the coarse granule sandstone consumed less, even can replacing with draining board completely, a large amount of backfill soil can take excavation of foundation pit earth material out on the spot, saves a large amount of earthwork transportation expense;
The interior seepage action of ground water speed of described permeable ground (1), when to hypogee indoor drainage, the negligible amounts of required outlet (2), namely less through the hole of exterior wall (6);
Adjust described permeable ground (1) and the absolute altitude of described outlet (2), different needs can be met, such as, when there is the relatively low municipal drain of absolute altitude (9) beyond foundation ditch border (4), described permeable ground (1) can be arranged on higher position, subsoil water flows to municipal drain (9) through outlet (2) by deadweight, it is not necessary to extra increase water-pumping/draining system;
The present invention is for below the foundation ditch of hypogee and when soil layer (3) is the geological environment of impervious stratum about, it is possible to the maximum water pressure described permeable ground of adjustment (1) that can bear according to hypogee base plate (5) and the absolute altitude of described outlet (2).
Accompanying drawing explanation
Fig. 1 hypogee foundation ditch backfill zone profile (outlet leads to beyond the foundation ditch of hypogee)
Fig. 2 hypogee foundation ditch backfill zone profile (outlet leads to indoor, hypogee)
1--permeable ground in figure; 2--outlet (leads to beyond the foundation ditch of hypogee or leads to indoor, hypogee); Below the foundation ditch of 3--hypogee and about soil layer; Foundation ditch border, 4--hypogee; 5--hypogee base plate; 6--hypogee exterior wall; 7--bottom backfill soil; 8--top backfill soil; 9--municipal drainage pipe trench; 10--gutter
Detailed description of the invention
Embodiment 1
Below certain underground building foundation pit and about soil layer (3) is impervious stratum, the relatively low municipal drain of absolute altitude (9) is there is beyond foundation ditch border (4), can by the subsoil water of higher position in foundation ditch discharged to municipal drain (9). Being embodied as way is: foundation ditch backfill soil is constructed from bottom to top in the following order: backfilling of earthwork bottom soil layer (7) being excavated with place is to higher than the absolute altitude of municipal drain (9)---thick with permeable ground (1) 150mm in the middle of rubble backfill and be distributed to whole foundation ditch backfill region, laying the gutter (10) between connection permeable ground (1) and municipal drain (9) during this period, gutter (10) are from outlet (2) the slope aspect municipal drain (9) of permeable ground (1)---and the backfilling of earthwork upper soil horizon (8) being excavated with place is to designing ground elevation. In backfilling process, each soil layer compaction in layers, lift height 200��300mm.
During hypogee uses, the subsoil water owing to being higher than outlet (2) in foundation ditch is all drained, it is contemplated that in foundation ditch, underground water head absolute altitude will not be higher than outlet (2) absolute altitude. Through checking computations, under the groundwater pressure effect of described head absolute altitude, hypogee will not float.
Embodiment 2
Below certain underground building foundation pit and about soil layer (3) is impervious stratum, municipal drain absolute altitude beyond foundation ditch border (4) is higher, base mine water can be discharged to, by the drainage duct (2) that hypogee exterior wall (6) is reserved, the gutter that hypogee is indoor in such cases, then by the provisioned water-pumping/draining system in hypogee itself, water be discharged beyond hypogee. Being embodied as way is: drainage duct (2) reserved by hypogee exterior wall (6); The backfilling of earthwork upper soil horizon (8) that foundation ditch backfill soil is constructed from bottom to top in the following order: backfilling of earthwork bottom soil layer (7) being excavated with place is to absolute altitude close to drainage duct (2)---thick with permeable ground (1) 800mm in the middle of medium coarse sand backfill and be distributed to whole foundation ditch backfill region, place the �� 300 porous aqueduct around hypogee during this period and lead to drainage duct (2) in the middle of permeable ground (1)---is excavated with place is to designing ground elevation. In backfilling process, each soil layer compaction in layers, lift height 200��300mm.
During hypogee uses, the subsoil water owing to being higher than drainage duct (2) absolute altitude in foundation ditch is all drained, it is contemplated that in foundation ditch, underground water head absolute altitude will not be higher than the absolute altitude of drainage duct (2). The absolute altitude of reserved drainage duct (2) can be determined according to the maximum water pressure that hypogee base plate (5) can bear.
The present embodiment is for certain building basement in Wuchang, planar dimension 84mX56m, absolute altitude-9.75m at the bottom of base plate. Exterior wall (6) is provided with 4 drainage ducts through walls (2), the distance 2.0m between drainage duct (2) and hypogee base plate (5) bottom altogether; Base plate (5) is also provided with some observation ports, to see whether to have Groundwater infiltration base plate (5) below. Observing during use that drainage duct (2) has water to discharge, having no base plate (5) observation port has water to discharge.
Claims (6)
1. the water discharge method of a underground structure subsoil water and device, underground structure includes hypogee exterior wall (6), hypogee base plate (5), and the region between hypogee exterior wall (6) and foundation ditch border, hypogee (4) is foundation ditch backfill region; It is characterized in that: backfill region at foundation ditch and construct a permeable ground (1), described permeable ground (1) is full of whole foundation ditches backfill region in the horizontal direction, vertically exists only in a limited thickness scope and keeps certain distance with hypogee base plate (5); Described permeable ground (1) at least two outlets (2) of connection.
2. the water discharge method of a kind of underground structure according to claim 1 subsoil water and device, it is characterized in that: described outlet (2) separately or concurrently leads to one of following two class places: lead to the lower ground face beyond foundation ditch border (4), mine pit or pipe trench (9), or lead to lower ground face, indoor, hypogee, mine pit or pipe trench through hypogee exterior wall (6).
3. the water discharge method of a kind of underground structure according to claim 1 subsoil water and device, it is characterized in that: below the foundation ditch of hypogee and when soil layer (3) is the geological environment of impervious stratum about, the distance between described outlet (2) and hypogee base plate (5) controllably builds down the maximum water pressure that base plate (5) can bear.
4. the water discharge method of a kind of underground structure according to claim 1 subsoil water and device, it is characterized in that: described permeable ground (1) is made up of coarse granule sandstone (include but not limited to medium sand, coarse sand, gravelly sand, dust, circle gravel, rubble, cobble, block stone, waft stone), or is made up of the draining board of horizontal positioned.
5. the water discharge method of a kind of underground structure according to claim 1 subsoil water and device, it is characterised in that: described permeable ground (1) thickness >=150mm.
6. permeable ground according to claim 4 (1), it is characterised in that: arrange one in the middle of described permeable ground (1) and with the horizontal aqueduct of porous and be communicated to outlet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410615967.0A CN105625448A (en) | 2014-10-31 | 2014-10-31 | Underground water drainage method and device for underground building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410615967.0A CN105625448A (en) | 2014-10-31 | 2014-10-31 | Underground water drainage method and device for underground building |
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| CN105625448A true CN105625448A (en) | 2016-06-01 |
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| CN201410615967.0A Pending CN105625448A (en) | 2014-10-31 | 2014-10-31 | Underground water drainage method and device for underground building |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100206A (en) * | 2017-06-22 | 2017-08-29 | 山东建筑大学 | A kind of prevention and controls of basement leakage |
| CN113622468A (en) * | 2021-05-08 | 2021-11-09 | 中铁四局集团有限公司 | Multi-layer-level long path limiting and discharging device suitable for underground engineering |
| CN115217146A (en) * | 2022-07-21 | 2022-10-21 | 中国五冶集团有限公司 | Anti underground building structure that floats |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11256609A (en) * | 1998-03-13 | 1999-09-21 | Shimizu Corp | Uplift prevention method of structure and uplift prevention construction |
| CN202247920U (en) * | 2011-09-27 | 2012-05-30 | 天津住宅集团建设工程总承包有限公司 | Construction structure for water drainage of blind ditch and water collecting wells in deep foundation pit |
| CN202706046U (en) * | 2012-06-08 | 2013-01-30 | 深圳市工勘岩土工程有限公司 | Anti-floating drainage structure for underground structure |
| CN202730785U (en) * | 2012-06-29 | 2013-02-13 | 深圳市工勘岩土工程有限公司 | Anti-floating blind ditch water drainage structure for underground structure |
| CN104060620A (en) * | 2013-03-20 | 2014-09-24 | 中国二十冶集团有限公司 | Karst fissure water control method for deep foundation pit |
| CN204570717U (en) * | 2014-10-31 | 2015-08-19 | 龚展宇 | The dewatering installation of a kind of underground structure underground water |
-
2014
- 2014-10-31 CN CN201410615967.0A patent/CN105625448A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11256609A (en) * | 1998-03-13 | 1999-09-21 | Shimizu Corp | Uplift prevention method of structure and uplift prevention construction |
| CN202247920U (en) * | 2011-09-27 | 2012-05-30 | 天津住宅集团建设工程总承包有限公司 | Construction structure for water drainage of blind ditch and water collecting wells in deep foundation pit |
| CN202706046U (en) * | 2012-06-08 | 2013-01-30 | 深圳市工勘岩土工程有限公司 | Anti-floating drainage structure for underground structure |
| CN202730785U (en) * | 2012-06-29 | 2013-02-13 | 深圳市工勘岩土工程有限公司 | Anti-floating blind ditch water drainage structure for underground structure |
| CN104060620A (en) * | 2013-03-20 | 2014-09-24 | 中国二十冶集团有限公司 | Karst fissure water control method for deep foundation pit |
| CN204570717U (en) * | 2014-10-31 | 2015-08-19 | 龚展宇 | The dewatering installation of a kind of underground structure underground water |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100206A (en) * | 2017-06-22 | 2017-08-29 | 山东建筑大学 | A kind of prevention and controls of basement leakage |
| CN113622468A (en) * | 2021-05-08 | 2021-11-09 | 中铁四局集团有限公司 | Multi-layer-level long path limiting and discharging device suitable for underground engineering |
| CN113622468B (en) * | 2021-05-08 | 2023-02-28 | 中铁四局集团有限公司 | Multi-layer-level long path quantity-limiting discharging device suitable for underground engineering |
| CN115217146A (en) * | 2022-07-21 | 2022-10-21 | 中国五冶集团有限公司 | Anti underground building structure that floats |
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Application publication date: 20160601 |
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