CN208762896U - A kind of big flow underground water ejectment structure - Google Patents
A kind of big flow underground water ejectment structure Download PDFInfo
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- CN208762896U CN208762896U CN201721408944.8U CN201721408944U CN208762896U CN 208762896 U CN208762896 U CN 208762896U CN 201721408944 U CN201721408944 U CN 201721408944U CN 208762896 U CN208762896 U CN 208762896U
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- steel pipe
- underground water
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- draining
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Abstract
The utility model provides a kind of big flow underground water ejectment structure, and the ejectment structure includes permanent drainage channel and draining steel pipe；The draining steel pipe connecting connects underground chamber and concentrates issue and the permanent drainage channel；There is sump, draining steel pipe, which is linked into, concentrates EXIT POINT sump at the concentration issue；The draining steel pipe is equipped with valve and pressure gauge.The utility model issue that can dash forward to high-pressure high-flow is safely and effectively administered, and guarantees the permanent secure of structure, and reduces overall process difficulty, processing duration and construction investment.
Description
Technical field
The underground engineering developed the utility model relates to karst area or underground water more particularly to a kind of big flow underground water
Ejectment structure.
Background technique
The underground engineering of karst area, Karst Hydrogeological Conditions are complex, and Karst-fissure water is abundant, at present both at home and abroad
The aqueous situation in Underground Engineering Excavation construction front is all attached great importance to, there are many method of Detection of Karst and crevice water, such as water
Literary geology method, Ground Penetrating Radar, infrared technology (Geothermal method), transient electromagnetic method etc..But practice have shown that, it is existing advanced
Geologic prediction method still can not accurate forecast and positioning underground water, often led to during excavation construction underground dash forward discharge disaster
Generation, or even cause major disaster accident, it is therefore necessary to effectively be administered to underground water.
For the underground engineering of karst area, it should be arranged as far as possible to being taken in advance there may be the location of prominent water burst in construction
It applies and is handled, avoid reprocessing after exposing karst water as far as possible, for different type, different flow, different pressures, different parts
Underground water, need to formulate targetedly control measures, it then follows " attention dredge, stifled row combination, adaptation to local conditions, comprehensive treatment "
Principle.Therefore it needs to start with from the Planning and process for comprehensively treating of underwater prevention, by different types of underground water
Problem thoroughly solves, the execution conditions of betterment works, evades construction risk, just can ensure that the smooth perforation of engineering, but big flow
The difficulty of governance of underground water is very big, needs for different underground water developmental conditions and engineering-environment, to underground water Treatment process
Further refinement, guarantees the permanent secure of underground engineering.
Issue prominent for partial high pressure big flow is administered, and according to whole closure, difficulty is big, long in time limit, and after closure
High-pressure high-flow underground water the section aggregation of nearby hole is lifted, threaten underground engineering itself and neighbouring hole section adjoining rock stability and tunnel
Hole operational safety.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of big flow underground water ejectment structures, can be to high pressure
The prominent issue of big flow is safely and effectively administered.For this purpose, the utility model uses following technical scheme:
A kind of big flow underground water ejectment structure, it is characterised in that the ejectment structure includes permanent drainage channel and draining
Steel pipe；
The draining steel pipe connecting connects underground chamber and concentrates issue and the permanent drainage channel；
There is sump, draining steel pipe, which is linked into, concentrates EXIT POINT sump at the concentration issue；
The draining steel pipe is equipped with valve and pressure gauge.
Further, the draining steel pipe includes the first steel pipe and the second steel pipe, and the underground chamber is every a distance
Drainage point is set, and the drainage point is connected with permanent drainage channel by the first steel pipe, by along ground between the sump and the first steel pipe
The second steel pipe connection of lower cavern length direction setting.
Further, the ejectment structure is equipped with the channel slot of second steel pipe, and slot inner cushion layer concreting is being buried
If the second steel pipe completes after-pouring external wrapping concrete to excavation design elevation.
Further, the valve and pressure gauge are set in the exit of first steel pipe.
Further, the antiseepage consolidation again of the deep-level high pressure uncovered with 12~15m of progress is influenced on prominent water burst band and upstream and downstream
Grouting forms uncovered antiseepage consolidation grouting coagulation structure again.
By the utility model, the issue that can dash forward to high-pressure high-flow is safely and effectively administered, and guarantees the permanent of structure
Safety, and reduce overall process difficulty, processing duration and construction investment.
Detailed description of the invention
Fig. 1 is the floor map of the utility model big flow underground water ejectment constructive embodiment.
Fig. 2 is the underground chamber cross-sectional view of the utility model big flow underground water ejectment constructive embodiment.
Fig. 3 is the uncovered antiseepage consolidation grouting again that the utility model influences band in the prominent water burst band and upstream and downstream of underground chamber
Coagulation structure schematic diagram.
Specific embodiment
Referring to attached drawing.Big flow underground water ejectment structure provided by the utility model, including permanent drainage channel 2 and draining
Steel pipe.There is sump 4 at the concentration issue of underground chamber rich water hole section 200, draining steel pipe, which is linked into, concentrates EXIT POINT water
Storehouse 4.
The draining steel pipe includes the first steel pipe 61 and the second steel pipe 62, and underground chamber rich water hole section 200 is every one
Section distance setting drainage point 5, the drainage point 5 and permanent drainage channel 3 are connected by the first steel pipe 61, the sump 4 and first
By being connected along the second steel pipe 62 that underground chamber length direction is arranged between steel pipe 61.
In the exit of first steel pipe, valve 31 and pressure gauge 32 are set.
The ejectment structure is equipped with the channel slot of second steel pipe, slot inner cushion layer concreting, in embedded second steel
Pipe completes after-pouring external wrapping concrete to excavation design elevation.
The utility model influences the uncovered for being deep to 12~15m that band is also set up in the prominent water burst band and upstream and downstream of underground chamber
Antiseepage consolidation grouting coagulation structure 100 again.
Work progress is as follows:
(1) water burst band underground water of dashing forward returns stream process
Deep-level high pressure uncovered with 12~15m of progress antiseepage consolidation grouting again is influenced on prominent water burst band and upstream and downstream, is formed
The underground water of rich water hole section 200 is put together from both ends to centre, finally returns stream by uncovered antiseepage consolidation grouting coagulation structure 100 again
To the several concentration issues of bottom plate, the underground water (in addition to concentrating issue) of rich water hole section is pushed into other than 12m, is preliminarily formed
Certain thickness impervious grouting circle, creates favorable conditions for subsequent construction.
(2) steel pipe burial and construction is drained
Cutting construction is carried out to the pre-buried channel of the draining steel pipe concentrated between issue and permanent drainage channel, and carries out slot
Inner cushion layer concreting then buries draining steel pipe and completes after-pouring external wrapping concrete to excavation design elevation.
(3) issue Caisson is concentrated
The concentration EXIT POINT sump put together is excavated, and draining steel pipe is accessed into EXIT POINT sump, underground water is through pre-buried
Steel pipe ejectment is drained to permanent drainage channel.In draining steel pipe exit, valve and pressure gauge are installed, according to water pressure monitoring feelings
Condition opens and closes the valve on draining steel pipe, guarantees the external water pressure of structure receiving within controlled range.
(4) consolidation grouting is constructed after serving as a contrast
After the completion of concentrating water outlet position lining concrete construction, consolidation grouting is constructed after being served as a contrast, and guarantees structure forever
Long operational safety.
The utility model puts underground water to underground engineering bottom plate 1 ~ 3 a small number of concentration issue together, passes through pre-buried row
Water steel pipe, the external water pressure that underground water ejectment to permanent drainage channel, effective relief features are born, according to water pressure monitoring feelings
Condition can open and close the valve on draining steel pipe, realize hole external control row.It simultaneously will by system antiseepage consolidation grouting measure
Water segregation in tunnel meets engineering operation needs.
The foregoing is merely the structure features of specific embodiment of the utility model, but the utility model to be not limited to
This, in the field of the utility model, made changes or modifications all cover practical new at this any those skilled in the art
Among the protection scope of type.
Claims (4)
1. a kind of big flow underground water ejectment structure, it is characterised in that the ejectment structure includes permanent drainage channel and draining steel
Pipe；
The draining steel pipe connecting connects underground chamber and concentrates issue and the permanent drainage channel；
There is sump, draining steel pipe, which is linked into, concentrates EXIT POINT sump at the concentration issue；
The draining steel pipe is equipped with valve and pressure gauge；
Deep-level high pressure uncovered with 12~15m of progress antiseepage consolidation grouting again is influenced on prominent water burst band and upstream and downstream, forms uncovered
Antiseepage consolidation grouting coagulation structure again.
2. a kind of big flow underground water ejectment structure as described in claim 1, it is characterised in that the draining steel pipe includes the
Drainage point, the drainage point and permanent drainage channel is arranged every a distance in one steel pipe and the second steel pipe, the underground chamber
It is connected by the first steel pipe, is connected between the sump and the first steel pipe by the second steel pipe being arranged along underground chamber length direction.
3. a kind of big flow underground water ejectment structure as claimed in claim 2, it is characterised in that the ejectment structure is equipped with institute
State the channel slot of the second steel pipe, slot inner cushion layer concreting completes after-pouring external wrapping concrete to opening in embedded second steel pipe
Dig design altitude.
4. a kind of big flow underground water ejectment structure as claimed in claim 2, it is characterised in that in going out for first steel pipe
The setting valve and pressure gauge at mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721408944.8U CN208762896U (en) | 2017-10-30 | 2017-10-30 | A kind of big flow underground water ejectment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721408944.8U CN208762896U (en) | 2017-10-30 | 2017-10-30 | A kind of big flow underground water ejectment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208762896U true CN208762896U (en) | 2019-04-19 |
Family
ID=66124416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721408944.8U Active CN208762896U (en) | 2017-10-30 | 2017-10-30 | A kind of big flow underground water ejectment structure |
Country Status (1)
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| CN (1) | CN208762896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747873A (en) * | 2019-11-22 | 2020-02-04 | 上海宝冶集团有限公司 | Device for sealing post-pouring strip piping and construction method |
-
2017
- 2017-10-30 CN CN201721408944.8U patent/CN208762896U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747873A (en) * | 2019-11-22 | 2020-02-04 | 上海宝冶集团有限公司 | Device for sealing post-pouring strip piping and construction method |
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