CN206800431U - A kind of sealing bottom type caisson wall - Google Patents
A kind of sealing bottom type caisson wall Download PDFInfo
- Publication number
- CN206800431U CN206800431U CN201720632568.4U CN201720632568U CN206800431U CN 206800431 U CN206800431 U CN 206800431U CN 201720632568 U CN201720632568 U CN 201720632568U CN 206800431 U CN206800431 U CN 206800431U
- Authority
- CN
- China
- Prior art keywords
- water
- stop sheet
- wall
- borehole wall
- delivery port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000011150 reinforced concrete Substances 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 13
- 238000009412 basement excavation Methods 0.000 abstract description 10
- 230000005484 gravity Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001568 sexual effect Effects 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 238000007569 slipcasting Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Revetment (AREA)
Abstract
The utility model discloses a kind of sealing bottom type caisson wall, including the borehole wall, cutting shoe, bottom water-stop sheet, water inlet and delivery port, water inlet and delivery port are provided with controlled valve, High-Pressure Water is injected by water inlet and cuts the soil body under the water-stop sheet of borehole wall bottom, and it is mixed into muddy water with the soil body, muddy water is evacuated to earth's surface by delivery port, caisson wall gradually sinks under gravity and external force effect, up to wall submersion to projected depth, then slurries are reinforced by water inlet and delivery port injection, high-pressure slip-casting closure is carried out to the soil body under the water-stop sheet of bottom until the requirement of impervious sexual satisfaction, then bottom water-stop sheet and open caisson bottom plate of constructing are removed.The utility model can prevent the outer water body of the borehole wall from penetrating into inside the borehole wall, and bottom water-stop sheet quality is good, construction environment is good, high safety, progress are fast, it can be ensured that water rich strata underground excavation construction safety.
Description
Technical field
The utility model belongs to underground structrue engineering field, more particularly to a kind of sealing bottom type caisson wall.
Background technology
Drop shaft sinking construction is by the use of the borehole wall as supporting construction, and soil excavation is carried out inside it, while in the borehole wall itself
The frictional force between the borehole wall and the soil body is overcome gradually to sink under gravity or external force effect, until sinking down into designed elevation.Due to open caisson
Borehole wall good integrity, intensity is high, can bear larger external load, can ensure the stabilization of the crater wall soil body in work progress,
The engineering fields such as water conservancy and hydropower, road traffic, building construction, track traffic, foundation have a wide range of applications.
Soil excavation is typically excavated using artificial or underwater inside caisson wall, the nothing in the range of the excavation of stratum
During underground water, manually or mechanically operation can be used；When level of ground water is higher in the range of the excavation of stratum, the borehole wall typically must assure that
Internal water-filling, to ensure hydraulic balance inside and outside the borehole wall, bottom plate and the borehole wall ooze water burst and drift sand thing caused by preventing inside and outside differential water pressures
Therefore and must excavate under water hole in the soil body.Efficiency of construction is relatively low, bottom plate lower floor has weak mud so as to causing, to the borehole wall
Bring potential safety hazard steadily in the long term.
Utility model content
The purpose of this utility model is to provide a kind of raising soil excavation efficiency, avoids underwater excavation operation, prevents from cheating bottom
Water burst is oozed with the borehole wall, it is ensured that the sealing bottom type caisson wall of construction safety.
To achieve the above object, sealing bottom type caisson wall of the present utility model, including the borehole wall, cutting shoe, bottom water-stop sheet；It is described
Bottom water-stop sheet is fixed on cutting shoe upper end；The bottom water-stop sheet is provided with multiple water inlets and delivery port；The water inlet and water outlet
Mouth is equipped with controlled valve.
As an improvement, the sealing bottom type caisson wall can be the supporting construction of arbitrary shape, such as circular armored concrete
The borehole wall, square shaft steel casing etc..
As an improvement, the bottom water-stop sheet can be arbitrary shape, such as male conical（Upper male conical, lower male conical）, lower convex arc
Shape, recessed taper or flat shape etc..
As an improvement, the water inlet and delivery port are to be equally spaced.
Construction method of the present utility model comprises the following steps：
A, section is manually latched in ground Shaft Excavation position construction one, the sealing bottom type caisson wall is placed wherein；
B, water inlet inject High-Pressure Water, cut bottom water-stop sheet under the soil body and it is mixed be muddy water, from delivery port general
Muddy water is evacuated to earth's surface, wash away in digging process ensure the borehole wall slowly, vertical subsidence；
C, the spreading borehole wall when borehole wall crop out is highly insufficient, excavated washing away with the borehole wall under gravity, external force effect
Caisson wall will constantly sink, and stop excavating when wall submersion to projected depth；
D, slurries are reinforced by water inlet and the delivery port injection of bottom water-stop sheet, slip casting is carried out to Soft Soil Layer under the water-stop sheet of bottom
Reinforce, until its overall impervious sexual satisfaction design load, then removes bottom water-stop sheet, borehole wall bottom plate of constructing.
Relative to existing caisson wall structure, the utility model has the advantages that：Bottom water-stop sheet can closely under
Water is penetrated into inside the borehole wall, and drying operation environment is better than conventional subsea operating environment, and concealed work construction quality is easy to ensure.
Brief description of the drawings
Fig. 1 is sealing bottom type caisson wall longitudinal sectional drawing of the present utility model；
Fig. 2 is sealing bottom type caisson wall transverse cross-sectional view of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is further described.
As shown in Figure 1-2, sealing bottom type caisson wall of the present utility model includes the borehole wall 1, cutting shoe 2, bottom water-stop sheet 3；It is described
Bottom water-stop sheet 3 is fixed on the upper end of cutting shoe 2；The bottom water-stop sheet 3 is provided with multiple water inlets 4 and delivery port 5；The water inlet 4
It is equally spaced with delivery port 5, and is equipped with controlled valve.
Construction method of the present utility model comprises the following steps：
A, section is manually latched in ground Shaft Excavation position construction one, the sealing bottom type caisson wall is placed on well head lock
Detain on the section soil body；
B, high-pressure water jet is injected from water inlet 4, is mud mixture by the bottom soil layer scour of bottom water-stop sheet 3, while from
Delivery port 5 extracts mud mixture out, so as to reach the purpose for excavating the soil body in well；
C, when the crop out of the borehole wall 1 is highly insufficient, the spreading borehole wall 1, excavation and the borehole wall 1 are being washed away from gravity, outer masterpiece
It will constantly be sunk with the lower borehole wall 1, stop excavating when the borehole wall 1 sinks down into projected depth；
D, inserted by water inlet 4 and delivery port 5 with Grouting Pipe in the bottom soil body of bottom water-stop sheet 3, and inject reinforcing slurries,
Water-stop sheet 3 times Soft Soil Layers in bottom are reinforced, until its overall impervious sexual satisfaction design load, then removes bottom water-stop sheet 3, construction
Borehole wall bottom plate.
As known by the technical knowledge, the utility model can pass through other essence without departing from its spirit or the reality of essential feature
Scheme is applied to realize.Therefore, embodiment disclosed above is all merely illustrative for each side, is not only.
For those skilled in the art, can also be made on the premise of the utility model principle is not departed from some
Improve, these improvement also should be regarded as the scope of protection of the utility model.
Claims (4)
1. a kind of sealing bottom type caisson wall, including the borehole wall（1）, cutting shoe（2）, it is characterised in that：Also include bottom water-stop sheet (3)；Institute
State bottom water-stop sheet（3）It is fixed on cutting shoe（2）Upper end, bottom water-stop sheet（3）Provided with multiple water inlets（4）And delivery port（5）；It is described
Water inlet（4）And delivery port（5）It is equipped with controlled valve.
2. sealing bottom type caisson wall according to claim 1, it is characterised in that：The borehole wall（1）For circular reinforced concrete
The native borehole wall or square shaft steel casing.
3. sealing bottom type caisson wall according to claim 1, it is characterised in that：The bottom water-stop sheet（3）For male conical, under
Convex, recessed taper or flat shape.
4. sealing bottom type caisson wall according to claim 1, it is characterised in that：The water inlet（4）And delivery port（5）For
It is equally spaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720632568.4U CN206800431U (en) | 2017-06-02 | 2017-06-02 | A kind of sealing bottom type caisson wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720632568.4U CN206800431U (en) | 2017-06-02 | 2017-06-02 | A kind of sealing bottom type caisson wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206800431U true CN206800431U (en) | 2017-12-26 |
Family
ID=60744939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720632568.4U Expired - Fee Related CN206800431U (en) | 2017-06-02 | 2017-06-02 | A kind of sealing bottom type caisson wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206800431U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023026A (en) * | 2017-06-02 | 2017-08-08 | 中国矿业大学 | A kind of sealing bottom type caisson wall and construction method |
| CN108316326A (en) * | 2018-01-04 | 2018-07-24 | 浙江大学城市学院 | A kind of rapid constructing method of open caisson |
| CN112031869A (en) * | 2020-07-21 | 2020-12-04 | 中铁武汉勘察设计研究院有限公司 | Tunnel water burst protection device and installation method thereof |
-
2017
- 2017-06-02 CN CN201720632568.4U patent/CN206800431U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023026A (en) * | 2017-06-02 | 2017-08-08 | 中国矿业大学 | A kind of sealing bottom type caisson wall and construction method |
| CN108316326A (en) * | 2018-01-04 | 2018-07-24 | 浙江大学城市学院 | A kind of rapid constructing method of open caisson |
| CN112031869A (en) * | 2020-07-21 | 2020-12-04 | 中铁武汉勘察设计研究院有限公司 | Tunnel water burst protection device and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 |