CN207143981U - 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure - Google Patents
3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure Download PDFInfo
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- CN207143981U CN207143981U CN201720949582.7U CN201720949582U CN207143981U CN 207143981 U CN207143981 U CN 207143981U CN 201720949582 U CN201720949582 U CN 201720949582U CN 207143981 U CN207143981 U CN 207143981U
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- gutter
- sump
- foundation ditch
- rich water
- discharge structure
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Abstract
The utility model is related to one kind the 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure, including building enclosure, weeper drain, gutter, sump, foundation ditch both sides set building enclosure, weeper drain is set in the foundation ditch of building enclosure, the edge of weeper drain is more than 0.5m far from toe, the weeper drain gradient is 3%, and foundation ditch bottom surface sets gutter, and the side slope ratio in gutter is 1：1, the bottom of trench in gutter sets the longitudinal slope consistent with substrate, and multiple sumps are set on gutter, and the borehole wall of sump is reinforced with bamboo springboard or plank, and foundation ditch middle part is along being provided with catch pit between the adjacent sump of foundation ditch horizontal direction.Gutter, sump are combined by the utility model with weeper drain, catch pit is added between sump in the middle part of foundation ditch, and reinforced on the borehole wall of sump with bamboo springboard or plank, it is water, percolating water and other percolating waters between stake that rich water half diagenesis sandstone location Foundation Pit bottom is oozed out to solve the problems, such as the 3rd well.
Description
Technical field
The utility model belongs to drainage of foundation pit technical field of structures, more particularly to one kind the 3rd is rich water half diagenesis Sandstone Section
Metro station excavation discharge structure.
Background technology
3rd is in rich water half diagenesis sandstone location subway construction, because stratum is followed successively by miscellaneous fill layer, Huang from top to bottom
Earthy soil layer, boulder bed, intense weathering soft rock layer, when foundation ditch is in hydrous fluids, directly excavates more than waterline and typically will not
Have an impact, but when excavation face reaches the position of waterline, will occur the infiltration of underground water in hole, causing can not in hole
Dry operation, and cheat outer water level it is too high when, then water pressure that can be excessive to building enclosure generation can also produce the seepage flow between stake；More
Have notably, if understratum has artesian water, can also produce excessive piping and flow native phenomenon, have a strong impact on construction.Foundation ditch with
Excavation and arrive red sand rock stratum, there is water often to be emerged from hole bottom in hole, by cheating internal drainage mode, ensure that foundation ditch is normally constructed.
When being continuously increased for excavation of foundation pit scale and depth, the also more and more higher of the requirement to drainage of foundation pit, in addition deep groundwater treatment be stranded
Difficulty, in foundation pit construction, to avoid producing quicksand, piping, hole bottom is prominent gushes, and prevents caving in for the crater wall soil body, ensure construction safety and
Influence of the excavation of foundation pit to surrounding environment is reduced, when below saturated soft soil layer and water-bearing layer and hole bottom in excavation of foundation pit depth being present
, it is necessary to select suitable drainage of foundation pit structure when artesian aquifer be present.
When Metro station excavation is constructed, it is contemplated that high-rise is distributed more, excavation process around foundation ditch
In with the change of level of ground water, the deformation rule of ground settlement, Adjacent Buildings sedimentation and pipe settlement, in order to avoid row
Water causes surface subsidence, influences the normal use of Adjacent Buildings, municipal pipeline etc., it is desirable to reduce the water of precipitation in hole.Separately
Outside, because intense weathering soft rock is as relative water resisting layer at native rock interface, its water content is larger, vertical penetrating power is weaker,
Crater wall is likely to occur localized seepage or water burst phenomenon.Therefore, it is the subway station construction of rich water half diagenesis sandstone location for the 3rd
In, the red sand rock stratum of big depth is contained in stratum, containing abundant crevice water in red sand rock stratum, in face of crevice water from excavating bottom surface
This problem design foundation ditch internal drainage structure is oozed out, percolating water and other percolating waters between the water oozed out at bottom, stake will be cheated and together collected
Water is discharged, and ensures waterproof construction quality.
Utility model content
The utility model for solve known technology in exist the 3rd be rich water half diagenesis sandstone location subway station construction in,
Contain the red sand rock stratum of big depth in stratum, oozed out in red sand rock stratum containing abundant crevice water, crevice water from excavation bottom surface
Technical problem and providing percolating water and other percolating waters between the water oozed out at a kind of Foundation Pit bottom, stake timely and effective can catchment discharge
The 3rd be rich water half diagenesis sandstone location Metro station excavation discharge structure.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
3rd is rich water half diagenesis sandstone location Metro station excavation discharge structure, including building enclosure, weeper drain, row
Ditch, sump, foundation ditch both sides set the building enclosure, set the draining blind in the foundation ditch of the building enclosure
Ditch, foundation ditch bottom surface set the gutter, multiple sumps are set on the gutter, the borehole wall of the sump is used
Bamboo springboard or plank are reinforced, rubble drainage layer thick the sump bottom laying 0.3-0.4m, and filter pipe is set in the sump,
The filter pipe outsourcing nylon mesh；Catch pit is provided with along between the adjacent sump of foundation ditch horizontal direction in the middle part of foundation ditch,
Gravel and block stone filtering layer are placed in the catch pit.
Further, the weeper drain depth 0.4m, wide 0.3m, the edge of the weeper drain are more than 0.5m far from toe,
The weeper drain gradient is 3%.
Further, the gutter be arranged in parallel a plurality of along foundation ditch longitudinal direction, the draining ditch depth 0.3m, bottom width
0.3m, the side slope ratio in gutter is 1：1, the bottom of trench in gutter sets the longitudinal slope consistent with substrate.
Further, the gutter of foundation ditch both sides gutter in the middle part of the building enclosure 1m, the foundation ditch
Edge is far from toe 0.5m.
Further, a diameter of 0.55-0.70m of the sump, depth 1.2-2.0m, along foundation ditch longitudinal direction institute
The spacing for stating sump is 30-50m.
Further, the gutter and sump application layer are closely knit with good cobble backfill.
The utility model has the advantages and positive effects of：3rd is the subway station construction of rich water half diagenesis sandstone location
In, in stratum the red sand rock stratum containing big depth, and containing abundant crevice water in red sand rock stratum, crevice water oozes out from bottom surface is excavated
Foundation pit construction is influenceed, because intense weathering soft rock is as relative water resisting layer at native rock interface, its water content is larger, vertical infiltration
Ability is weaker, and crater wall is likely to occur localized seepage or water burst phenomenon, and the utility model is by gutter, sump and weeper drain phase
With reference to rational sump size and the weeper drain gradient being set, along the adjacent sump of foundation ditch horizontal direction in the middle part of foundation ditch
Between add catch pit, and reinforced on the borehole wall of sump with bamboo springboard or plank, solve the 3rd system well
Percolating water and the problem of other percolating waters between water that rich water half diagenesis sandstone location Foundation Pit bottom is oozed out, stake.
Brief description of the drawings
Fig. 1 is that the 3rd that the utility model embodiment provides is rich water half diagenesis sandstone location Metro station excavation draining knot
Structure schematic diagram.
In figure：1- building enclosures, 2- weeper drains, 3- gutters, 4- sumps, 5- catch pits.
Embodiment
For invention, features and effects of the present utility model can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes in detail as follows.
It is that rich water half diagenesis sandstone location Metro station excavation discharge structure is made to the utility model the 3rd with reference to Fig. 1
Detailed description.
3rd is rich water half diagenesis sandstone location Metro station excavation discharge structure, including building enclosure 1, weeper drain 2,
Gutter 3 and sump 4, foundation ditch both sides set the building enclosure 1, close to described in setting in the foundation ditch of the building enclosure 1
Weeper drain 2, weeper drain 2 deep 0.4m, the wide 0.3m, the edge of the weeper drain 2 are more than 0.5m far from toe, and draining is blind
The gradient of ditch 2 is 3%；
Foundation ditch bottom surface sets the gutter 3, and the gutter 3 be arranged in parallel a plurality of, the row along foundation ditch longitudinal direction
3 deep 0.3m of ditch, bottom width 0.3m, the side slope ratio in gutter 3 is 1：1, the bottom of trench in gutter 3 sets the longitudinal slope consistent with substrate,
The gutter 3 of the foundation ditch both sides and the distance of building enclosure 1 are 1m, and the edge in gutter 3 is far from toe in the middle part of the foundation ditch
0.5m。
Multiple sumps 4, the gutter 3 and the application layer of sump 4 is set to be returned with good cobble on the gutter 3
Packing is real, and along being catchmented described in foundation ditch longitudinal direction, 4 spacing be 30-50m, a diameter of 0.55-0.70m of the sump 4, depth
Spend and reinforced for 1.2-2.0m, the borehole wall of the sump 4 with bamboo springboard or plank, the bottom of the sump 4 laying 0.3-0.4m is thick
Rubble drainage layer, a diameter of 0.32m filter pipe, the filter pipe outsourcing 25-40 mesh nylon yarns are set in the sump 4
Net.
Along catch pit 5 is provided between the adjacent sump 4 of foundation ditch horizontal direction in the middle part of foundation ditch, placed in the catch pit 5
Gravel and block stone filtering layer, the gutter 3 and the application layer of sump 4 are closely knit with good cobble backfill.
Station pit with excavate arrive sand layers, have in hole water often from cheat bottom emerge, draining is carried out in hole, be in order to
Ensure that foundation ditch can normally construct.In the digging process of foundation ditch sandstone part, gutter is progressively constructed with cutting depth, drainage
Sand layers crevice water, french drain water lead to periphery sump, and dewatering well is evacuated to by sump, then are discharged into sedimentation basin by dewatering well, warp
Heel row is precipitated to city planting ductwork.
Described above is only to preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, it is every according to the technical essence of the utility model to any simple modification made for any of the above embodiments, equivalent variations with
Modification, is belonged in the range of technical solutions of the utility model.
Claims (6)
1. one kind the 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure, it is characterised in that including building enclosure,
Weeper drain, gutter, sump, foundation ditch both sides set the building enclosure, are set in the foundation ditch of the building enclosure
The weeper drain, foundation ditch bottom surface set the gutter, multiple sumps, the sump are set on the gutter
The borehole wall reinforced with bamboo springboard or plank, rubble drainage layer thick the sump bottom laying 0.3-0.4m, in the sump
If filter pipe, the filter pipe outsourcing nylon mesh；Set in the middle part of foundation ditch along between the adjacent sump of foundation ditch horizontal direction
There is catch pit, gravel and block stone filtering layer are placed in the catch pit.
2. the as claimed in claim 1 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure, it is characterised in that institute
Weeper drain depth 0.4m, wide 0.3m are stated, the edge of the weeper drain is more than 0.5m far from toe, and the weeper drain gradient is 3%.
3. the as claimed in claim 1 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure, it is characterised in that institute
State gutter to be arranged in parallel along foundation ditch longitudinal direction a plurality of, the draining ditch depth 0.3m, bottom width 0.3m, the side slope ratio in gutter is
1：1, the bottom of trench in gutter sets the longitudinal slope consistent with substrate.
4. the as claimed in claim 3 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure, it is characterised in that institute
The edge in gutter gutter in the middle part of the building enclosure 1m, the foundation ditch of foundation ditch both sides is stated far from toe 0.5m.
5. the as claimed in claim 1 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure, it is characterised in that institute
A diameter of 0.55-0.70m of sump, depth 1.2-2.0m are stated, the spacing along sump described in foundation ditch longitudinal direction is 30-
50m。
6. the as claimed in claim 1 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure, it is characterised in that institute
It is closely knit with good cobble backfill to state gutter and sump application layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720949582.7U CN207143981U (en) | 2017-08-01 | 2017-08-01 | 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720949582.7U CN207143981U (en) | 2017-08-01 | 2017-08-01 | 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207143981U true CN207143981U (en) | 2018-03-27 |
Family
ID=61673861
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720949582.7U Expired - Fee Related CN207143981U (en) | 2017-08-01 | 2017-08-01 | 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055972A (en) * | 2019-04-28 | 2019-07-26 | 中国电建集团山东电力建设有限公司 | Dry dock foundation ditch construction method and dry dock foundation pit structure |
| CN110321576A (en) * | 2018-03-30 | 2019-10-11 | 北京交通大学 | Partially-penetrated well precipitation makes the outer earth's surface settlement calculation method of foundation pit in diving stratum foundation pit |
| CN112746624A (en) * | 2020-12-22 | 2021-05-04 | 中铁九局集团第二工程有限公司 | Novel comprehensive water lowering and draining method and device for mudstone subway station |
| CN114351739A (en) * | 2021-12-02 | 2022-04-15 | 广州白云国际机场股份有限公司 | Rainfall recharge process for protecting subway structure in complex karst cave region |
-
2017
- 2017-08-01 CN CN201720949582.7U patent/CN207143981U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110321576A (en) * | 2018-03-30 | 2019-10-11 | 北京交通大学 | Partially-penetrated well precipitation makes the outer earth's surface settlement calculation method of foundation pit in diving stratum foundation pit |
| CN110055972A (en) * | 2019-04-28 | 2019-07-26 | 中国电建集团山东电力建设有限公司 | Dry dock foundation ditch construction method and dry dock foundation pit structure |
| CN112746624A (en) * | 2020-12-22 | 2021-05-04 | 中铁九局集团第二工程有限公司 | Novel comprehensive water lowering and draining method and device for mudstone subway station |
| CN114351739A (en) * | 2021-12-02 | 2022-04-15 | 广州白云国际机场股份有限公司 | Rainfall recharge process for protecting subway structure in complex karst cave region |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180327 Termination date: 20180801 |