CN208563278U - The rainy season construction structure of major diameter vertical shaft in a kind of soft soil layer - Google Patents
The rainy season construction structure of major diameter vertical shaft in a kind of soft soil layer Download PDFInfo
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- CN208563278U CN208563278U CN201821012952.5U CN201821012952U CN208563278U CN 208563278 U CN208563278 U CN 208563278U CN 201821012952 U CN201821012952 U CN 201821012952U CN 208563278 U CN208563278 U CN 208563278U
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- vertical shaft
- major diameter
- diameter vertical
- rainy season
- soft soil
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model provides a kind of rainy season construction structure of major diameter vertical shaft in soft soil layer, high-pressure rotary jet grouting pile is set outside the contour line of major diameter vertical shaft before excavation, and high-pressure rotary jet grouting pile makes it possible to play the role of to prevent to blend reinforcing along the circumferential directions and formation high-pressed spin-spewing water-stopping curtain of major diameter vertical shaft；In addition, can reduce the water level elevation of the base mine water of work progress in the center setting dewatering well of major diameter vertical shaft, it is ensured that every step, which is excavated, constructs without water, prevents the cave-in of major diameter vertical shaft；Composite lining structure is used in major diameter vertical shaft, can effectively ensure that the stabilization of major diameter vertical shaft.The rainy season construction structure of major diameter vertical shaft is for various geology, the climatic issues encountered in rainy season construction in soft soil layer provided by the utility model, using effective reply structure, the construction method of the rainy season construction structure of major diameter vertical shaft is simple in the soft soil layer, construction procedure is clear, has very strong practicability.
Description
Technical field
The utility model belongs to water conservancy and hydropower technical field, more particularly, to a kind of rain of major diameter vertical shaft in soft soil layer
Season constructing structure.
Background technique
With the fast development of China's hydroelectric project, traffic engineering, construction enterprises in some hydroelectric projects, Tunnel Engineering
The hydrology of engineering can be encountered in implementation process and the case where geological conditions becomes increasingly complex.Such as in Process of Hydropower Plant Construction, ground
It is lauched and buries in shallower deep covering layer, often encounter collapsings when excavating air shaft, the unstable situation such as seep water, sternly
Ghost image rings construction safety and construction speed.
With making smooth advances for the Belt and Road national strategy, run in early stage is encountered since geological epoch is different with construction
The case where the case where major diameter shaft excavation is carried out in soft stratum is more and more, especially encounters rainy season construction, it is existing
Conventional excavation technology is difficult to meet the strict demand of safety, progress etc..
Utility model content
The purpose of this utility model is that for the deficiency mentioned in background technique, provide big in a kind of soft soil layer
The rainy season construction structure of diameter vertical shaft.
For this purpose, the above-mentioned purpose of the utility model is achieved through the following technical solutions:
The rainy season construction structure of major diameter vertical shaft in a kind of soft soil layer, the rainy season of major diameter vertical shaft in the soft soil layer
Constructing structure includes major diameter vertical shaft, and the internal diameter of the major diameter vertical shaft is not less than 6 m；Outside the contour line of the major diameter vertical shaft
Be arranged high-pressure rotary jet grouting pile, the high-pressure rotary jet grouting pile along major diameter vertical shaft circumferential directions and formed high-pressure spiral jetting diaphragm curtain
Curtain；The center setting dewatering well of the major diameter vertical shaft, the dewatering well for reducing work progress base mine water
Water level elevation, it is ensured that every step, which is excavated, constructs without water.
While by adopting the above technical scheme, the utility model can also be used or be combined using further below
Technical solution:
Preferably, the expanded diameter of the high-pressure rotary jet grouting pile is 60 cm, and the stake bottom of the high-pressure rotary jet grouting pile stretches to
In water barrier under major diameter vertical shaft.
Preferably, the dewatering well includes the drainage layer of downcast well pipe and package downcast well pipe.
Preferably, the drainage layer includes three layers of filter structure, and outermost layer is the iron wire coarse strainer that mesh is 5 × 5 cm,
It is for interior two layers the high-quality nylon fie screen that mesh is 1 × 1 cm.
Preferably, drainpipe is set on the borehole wall of the major diameter vertical shaft, and the drainpipe is used for will be outside major diameter vertical shaft
The infiltration of side is collected into well and is discharged.
Preferably, it is set as composite lining structure in the major diameter vertical shaft, is arranged on the borehole wall of the major diameter vertical shaft
Concrete lining is arranged in the inside of system anchor tube and steel grating pneumatically placed concrete structure, the steel grating pneumatically placed concrete structure.
Preferably, the system anchor tube is arranged with circumferential 1.0 m of spacing, the structure of the quincuncial pile formula of vertical 0.5 m of spacing.
Preferably, the steel grating pneumatically placed concrete structure includes steel grating, the steel grating along major diameter vertical shaft well
Deep direction is welded to connect every between two steel gratings that a Pin and vertical direction is arranged in 0.5 m.
The utility model provides a kind of rainy season construction structure of major diameter vertical shaft in soft soil layer, in major diameter before excavation
High-pressure rotary jet grouting pile is set outside the contour line of vertical shaft, and high-pressure rotary jet grouting pile is along the circumferential directions and formation height of major diameter vertical shaft
Pressure rotary-spraying water-stop curtain makes it possible to play the role of to prevent to blend reinforcing；In addition, in the center setting precipitation of major diameter vertical shaft
Well can reduce the water level elevation of the base mine water of work progress, it is ensured that every step, which is excavated, constructs without water, prevents big straight
The cave-in of diameter vertical shaft；Composite lining structure is used in major diameter vertical shaft, can effectively ensure that the stabilization of major diameter vertical shaft.This
In soft soil layer provided by utility model the rainy season construction structure of major diameter vertical shaft for encounter in rainy season construction variously
Matter, climatic issues use effective reply structure, the construction party of the rainy season construction structure of major diameter vertical shaft in the soft soil layer
Method is simple, construction procedure is clear, has very strong practicability.
Detailed description of the invention
Fig. 1 is the horizontal layout of the rainy season construction structure of major diameter vertical shaft in soft soil layer provided by the utility model
Figure.
Fig. 2 is to apply in the rainy season of major diameter vertical shaft in the soft soil layer provided by the utility model equipped with composite lining structure
The floor plan of work structure.
Specific embodiment
The utility model is described in further detail referring to the drawings and specific embodiments.
The rainy season construction structure of major diameter vertical shaft in a kind of soft soil layer, including major diameter vertical shaft 1, major diameter vertical shaft 1
Internal diameter is not less than 6 m；High-pressure rotary jet grouting pile is set outside the contour line of major diameter vertical shaft 1, high-pressure rotary jet grouting pile is along major diameter vertical shaft 1
Circumferential directions and formation high-pressed spin-spewing water-stopping curtain 2；The center setting dewatering well 3 of major diameter vertical shaft 1, dewatering well 3 are used for
Reduce the water level elevation of the base mine water of work progress, it is ensured that every step, which is excavated, constructs without water, and the internal diameter of dewatering well 3
Much smaller than the internal diameter of major diameter vertical shaft.
The expanded diameter of high-pressure rotary jet grouting pile is 60 cm, and the stake bottom of high-pressure rotary jet grouting pile stretches under major diameter vertical shaft 1
In water barrier.
Dewatering well 3 includes downcast well pipe and the drainage layer for wrapping up downcast well pipe.Drainage layer includes three layers of filter structure, outermost
Layer is the iron wire coarse strainer that mesh is 5 × 5 cm, is for interior two layers the high-quality nylon fie screen that mesh is 1 × 1 cm.
Drainpipe 4 is set on the borehole wall of major diameter vertical shaft 1, and drainpipe 4 is used to collect the infiltration in 1 outside of major diameter vertical shaft
In to well and it is discharged.
It is set as composite lining structure in major diameter vertical shaft 1, system anchor tube 5 and steel lattice are set on the borehole wall of major diameter vertical shaft
Concrete lining 7 is arranged in the inside of grid pneumatically placed concrete structure 6, steel grating pneumatically placed concrete structure 6.System anchor tube 5 is with circumferential spacing
1.0 m, the structure arrangement of the quincuncial pile formula of vertical 0.5 m of spacing.Steel grating pneumatically placed concrete structure 6 includes steel grating, steel grating
It is welded to connect along the well depth direction of major diameter vertical shaft every between two steel gratings that a Pin and vertical direction is arranged in 0.5 m.
Above-mentioned specific embodiment is used to illustrate the utility model, the only preferred embodiment of the utility model, and
It is not to limit the utility model, it is practical new to this in the spirit and scope of protection of the claims of the utility model
Any modification, equivalent substitution, improvement and etc. that type is made, both fall within the protection scope of the utility model.
Claims (8)
1. the rainy season construction structure of major diameter vertical shaft in a kind of soft soil layer, which is characterized in that major diameter in the soft soil layer
The rainy season construction structure of vertical shaft includes major diameter vertical shaft, and the internal diameter of the major diameter vertical shaft is not less than 6 m；The major diameter vertical shaft
Contour line outside high-pressure rotary jet grouting pile is set, the high-pressure rotary jet grouting pile along major diameter vertical shaft circumferential directions and form high pressure
Whirl spraying water-stop curtain；The major diameter vertical shaft center setting dewatering well, the dewatering well for reducing work progress foundation pit
The water level elevation of interior underground water, it is ensured that every step, which is excavated, constructs without water.
2. the rainy season construction structure of major diameter vertical shaft in soft soil layer according to claim 1, which is characterized in that described
The expanded diameter of high-pressure rotary jet grouting pile is 60 cm, and the stake bottom of the high-pressure rotary jet grouting pile stretches to the water proof under major diameter vertical shaft
In layer.
3. the rainy season construction structure of major diameter vertical shaft in soft soil layer according to claim 1, which is characterized in that the drop
Well includes the drainage layer of downcast well pipe and package downcast well pipe.
4. the rainy season construction structure of major diameter vertical shaft in soft soil layer according to claim 3, which is characterized in that described
Drainage layer includes three layers of filter structure, and outermost layer is the iron wire coarse strainer that mesh is 5 × 5 cm, and interior two layers is that mesh is 1 × 1
The high-quality nylon fie screen of cm.
5. the rainy season construction structure of major diameter vertical shaft in soft soil layer according to claim 1, which is characterized in that described big
Drainpipe is set on the borehole wall of diameter vertical shaft, and the drainpipe is for the infiltration on the outside of major diameter vertical shaft to be collected into well side by side
Out.
6. the rainy season construction structure of major diameter vertical shaft in soft soil layer according to claim 1, which is characterized in that described big
It is set as composite lining structure in diameter vertical shaft, system anchor tube is set on the borehole wall of the major diameter vertical shaft and steel grating sprays coagulation
Concrete lining is arranged in the inside of soil structure, the steel grating pneumatically placed concrete structure.
7. the rainy season construction structure of major diameter vertical shaft in soft soil layer according to claim 6, which is characterized in that described
System anchor tube is arranged with circumferential 1.0 m of spacing, the structure of the quincuncial pile formula of vertical 0.5 m of spacing.
8. the rainy season construction structure of major diameter vertical shaft in soft soil layer according to claim 6, which is characterized in that described
Steel grating pneumatically placed concrete structure includes steel grating, and the steel grating is arranged along the well depth direction of major diameter vertical shaft every 0.5 m
It is welded to connect between two steel gratings of one Pin and vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821012952.5U CN208563278U (en) | 2018-06-28 | 2018-06-28 | The rainy season construction structure of major diameter vertical shaft in a kind of soft soil layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821012952.5U CN208563278U (en) | 2018-06-28 | 2018-06-28 | The rainy season construction structure of major diameter vertical shaft in a kind of soft soil layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208563278U true CN208563278U (en) | 2019-03-01 |
Family
ID=65488257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821012952.5U Active CN208563278U (en) | 2018-06-28 | 2018-06-28 | The rainy season construction structure of major diameter vertical shaft in a kind of soft soil layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208563278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658023A (en) * | 2022-03-25 | 2022-06-24 | 中电建路桥集团有限公司 | Large-diameter super-long pile group for expressway and construction method thereof |
-
2018
- 2018-06-28 CN CN201821012952.5U patent/CN208563278U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658023A (en) * | 2022-03-25 | 2022-06-24 | 中电建路桥集团有限公司 | Large-diameter super-long pile group for expressway and construction method thereof |
| CN114658023B (en) * | 2022-03-25 | 2024-01-16 | 中电建路桥集团有限公司 | Highway large-diameter ultra-long pile group and construction method thereof |
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