CN111810236A - Full-wrapping type comprehensive water-proof and drainage system for water-rich tunnel - Google Patents
Full-wrapping type comprehensive water-proof and drainage system for water-rich tunnel Download PDFInfo
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- CN111810236A CN111810236A CN202010899654.8A CN202010899654A CN111810236A CN 111810236 A CN111810236 A CN 111810236A CN 202010899654 A CN202010899654 A CN 202010899654A CN 111810236 A CN111810236 A CN 111810236A
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- water
- drainage system
- downcomer
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 description 10
- 238000005086 pumping Methods 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a full-wrapped comprehensive water-proof and drainage system for a water-rich tunnel, which comprises a steel frame, wherein a downcomer is arranged on the steel frame; one end of the connecting pipe is connected with one end of the downcomer; one side of the water collecting main pipe is connected with the other end of the connecting pipe; the vacuum pump is connected with water collecting main pipe one end, the vacuum pump is connected with the water pumper. According to the full-wrapping type comprehensive water-proof and drainage system for the water-rich tunnel, the steel frame is arranged, the downcomer is arranged on the steel frame, one end of the connecting pipe is connected with one end of the downcomer, one side of the water collecting main pipe is connected with the other end of the connecting pipe, the vacuum pump is connected with one end of the water collecting main pipe, and the vacuum pump is connected with the water pump.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a full-wrapping type comprehensive water prevention and drainage system for a water-rich tunnel.
Background
The drainage system of the tunnel is an important link in the tunnel construction, normal use and safe operation process. Taking a railway tunnel as an example, the drainage system is directly related to success or failure of the construction of the railway tunnel and exertion of the use function.
At present, a drainage system of cast-in-place concrete is generally adopted in a railway tunnel, the problems of low construction efficiency and difficulty in quality guarantee exist, and a drainage pipeline is easily blocked in the concrete casting process. In addition, after the drainage system is put into normal use, concrete drainage ditches and concrete inspection wells cast in situ are prone to cracking, so that water enters the tunnel bottom, and diseases such as slurry turning and mud pumping are caused.
Disclosure of Invention
The invention aims to overcome the technical problem of the prior art and provides a full-wrapping type comprehensive water-proof and drainage system for a water-rich tunnel.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides a full-wrapping type comprehensive water-proof and drainage system for a water-rich tunnel, which comprises:
the system comprises a steel frame, wherein a downcomer is arranged on the steel frame;
one end of the connecting pipe is connected with one end of the downcomer;
one side of the water collecting main pipe is connected with the other end of the connecting pipe;
the vacuum pump is connected with one end of the water collecting main pipe and connected with the water pump.
Preferably, the diameter of the interior of the precipitation tube is 32 mm.
Preferably, C30 concrete with the thickness of 30cm is sprayed on the steel frame.
Preferably, the length of the precipitation pipe is 4 m.
Preferably, the inner diameter of the water collecting main pipe is 75 mm.
Preferably, the connecting pipe is a steel wire hose with an inner diameter of 32mm, and a valve is arranged on the connecting pipe.
Preferably, the downcomer is provided in plurality.
Preferably, a plurality of the downcomer pipes are evenly distributed.
As a preferable scheme, the space between every two downcomer pipes is 1 m.
As a preferred scheme, one end of the downcomer is provided with a 100-mesh filter screen.
One or more technical schemes provided by the invention at least have the following technical effects or advantages:
1. through setting up the steelframe, be provided with the downcomer on the steelframe, connecting pipe one end is connected with downcomer one end, and collecting main one side is connected with the connecting pipe other end, and the vacuum pump is connected with collecting main one end, and the vacuum pump is connected with the water pumper, and sturdy and durable structure can improve drainage efficiency, helps the tunnel drainage.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic diagram of the transverse arrangement of downcomer in the full-bag type comprehensive water-proof and drainage system of the water-rich tunnel in the embodiment of the invention.
Fig. 2 is a schematic view of the longitudinal arrangement of the downcomer in the full-enclosed comprehensive water-proof and drainage system of the water-rich tunnel in the embodiment of the invention.
Fig. 3 is a schematic plan layout view of the downcomer in the full-enclosed comprehensive water-proof and drainage system of the water-rich tunnel in the embodiment of the invention.
Reference numbers in the figures: 1. a steel frame; 2. a downcomer pipe; 3. a water pump; 4. a vacuum pump; 5. a water collecting main pipe; 6. and (4) connecting the pipes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the present invention.
Example (b):
referring to fig. 1-3, the present embodiment provides a full-enclosed comprehensive water-proof and drainage system for a water-rich tunnel, including: the device comprises a steel frame 1, wherein a downcomer 2 is arranged on the steel frame 1;
one end of the connecting pipe 6 is connected with one end of the downcomer 2;
one side of the water collecting main pipe 5 is connected with the other end of the connecting pipe 6;
the vacuum pump 4, the vacuum pump 4 with the collecting main 5 one end is connected, the vacuum pump 4 is connected with the water pumper 3.
The full packet mode of rich water tunnel is synthesized and is prevented drainage system that this embodiment provided, 2 internal diameters of downcomer are 32mm, spray the thick C30 concrete of 30cm on the steelframe 1, 2 length of downcomer are 4m, collecting main 5's internal diameter is 75mm, connecting pipe 6 is internal diameter 32 mm's steel wire hose, and be provided with the valve on the connecting pipe 6, downcomer 2 is provided with a plurality ofly, and is a plurality of 2 evenly distributed of downcomer, per two be 1m between the downcomer 2, the one end of downcomer 2 is provided with 100 mesh filter screens.
The downcomer 2 is a PPR pipe with the inner diameter of 32mm, and the header pipe 5 is a PPR pipe with the inner diameter of 75 mm; the downcomer 2 inserted into the soil layer must be wrapped with a double layer 100 mesh screen. Each row of the downcomer 2 is connected with a water collecting main pipe 5, and the water collecting main pipe 5 is connected with a vacuum pump. The precipitation pipe 2 and the water collecting main pipe 5 are connected by a 32mm steel wire hose, and a valve is additionally arranged at the connecting part to control the precipitation of the well pipe; the main pipe is connected with the vacuum pump by a 75mm steel wire hose; in the precipitation process, the vacuum negative pressure is controlled below-0.06 MPa, if the pressure is increased, the precipitation pipes must be checked one by one to see whether air leakage exists or not, meanwhile, whether the steel pipe inserted into the soil layer is sealed in place must be checked, and the air leakage position must be tightly wound by an adhesive tape.
The well point pipe is buried and formed by a drilling method, the diameter of a well hole is not more than 40mm, and the depth of the hole is 0.5-1.0 m deeper than the bottom of the well point pipe.
Before the well point is used, water should be pumped, and after the abnormal phenomena such as water leakage, air leakage and the like are confirmed, continuous water pumping should be ensured. Dual power supplies should be on standby to prevent power outages. Generally, the water level falling funnel gradually becomes stable after pumping water for 3-5 d. The water outlet rule is generally 'big first then small, muddy first then clear'.
During the water pumping process, the water quantity, the water level and the vacuum degree should be observed at regular time, and the vacuum pump should be kept above 55 kPa.
The vacuum precipitation must be timely propelled according to the face excavation, and the precipitation team and the excavation team must be well matched; in the tunnel excavation process, the diving space at the bottom of the tunnel is lowered to a depth of not less than 1.00m below the bottom of the tunnel, so that sand gushing and water gushing at the bottom of the tunnel are prevented; the observation of the water level in the tunnel is strengthened, the water level is observed every day, and the water level change condition is mastered in time so as to guide the precipitation operation and the tunnel excavation. When the soil quality is poor and the permeability coefficient is large, double rows of well points or proper space between vacuum pipes are preferably adopted. The distance between the well point pipe and the side wall of the tunnel is not less than 1.0-1.5 m, the distance is too small, and air leakage is easy to occur.
The elevation of the water collecting main pipe is preferably close to the underground water line as much as possible, 0.25 to 0.5 percent of upward elevation gradient is formed along the water pumping flow direction, and the axis of the water pump is flush with the main pipe. The length of a main pipe of a set of pumping equipment is generally not more than 100-120 m. When the main pipe is too long, a plurality of sets of pumping equipment can be adopted; the well point system can be segmented, the lengths of all sections are approximately equal, and the well point system is suitable for being segmented at corners so as to reduce the number of elbows and improve the suction capacity; valves are arranged in sections to avoid water flow disorder in the pipes and influence on precipitation effect.
The deep well dewatering adopts a natural dewatering mode, the dewatering well depth is 15m, the deep well dewatering well is arranged at the position 1m away from the side walls at two sides of the tunnel at the end of the inverted arch, the distance between one side of the deep well dewatering well and the side wall is 10m, and the two sides of the deep well dewatering well are arranged in a quincunx shape. The diameter of a formed hole of the dewatering well is 60cm, the well diameter is 35cm, the well pipe is a PVC pipe, the water filter pipe is a circular hole type water filter pipe, filter materials are gravel, coarse sand and the like, hole sealing materials are cohesive soil, and the hole sealing depth is 4 meters.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a rich water tunnel is full packet mode and is synthesized water prevention and drainage system which characterized in that: the method comprises the following steps:
the device comprises a steel frame (1), wherein a downcomer (2) is arranged on the steel frame (1);
one end of the connecting pipe (6) is connected with one end of the downcomer (2);
one side of the water collecting main pipe (5) is connected with the other end of the connecting pipe (6);
the vacuum pump (4), vacuum pump (4) with collecting main (5) one end is connected, vacuum pump (4) are connected with water pumper (3).
2. The full-enclosed comprehensive water-proof and drainage system of the water-rich tunnel according to claim 1, characterized in that: the inner diameter of the downcomer (2) is 32 mm.
3. The full-enclosed comprehensive water-proof and drainage system of the water-rich tunnel according to claim 2, characterized in that: c30 concrete with the thickness of 30cm is sprayed on the steel frame (1).
4. The full-enclosed comprehensive water-proof and drainage system of the water-rich tunnel according to claim 2, characterized in that: the length of the downcomer (2) is 4 m.
5. The full-enclosed comprehensive water-proof and drainage system of the water-rich tunnel according to claim 1, characterized in that: the inner diameter of the water collecting main pipe (5) is 75 mm.
6. The full-enclosed comprehensive water-proof and drainage system of the water-rich tunnel according to claim 1, characterized in that: the connecting pipe (6) is a steel wire hose with the inner diameter of 32mm, and a valve is arranged on the connecting pipe (6).
7. The water-rich tunnel all-wrapped comprehensive water-proof and drainage system according to any one of claims 1 to 6, characterized in that: the downcomer (2) is provided with a plurality of.
8. The full-enclosed comprehensive water-proof and drainage system of the water-rich tunnel according to claim 7, characterized in that: the plurality of the downcomer pipes (2) are uniformly distributed.
9. The full-enclosed comprehensive water-proof and drainage system of the water-rich tunnel according to claim 8, characterized in that: and 1m is arranged between every two downcomer pipes (2).
10. The full-enclosed comprehensive water-proof and drainage system of the water-rich tunnel according to claim 9, characterized in that: one end of the downcomer (2) is provided with a 100-mesh filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010899654.8A CN111810236A (en) | 2020-08-31 | 2020-08-31 | Full-wrapping type comprehensive water-proof and drainage system for water-rich tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010899654.8A CN111810236A (en) | 2020-08-31 | 2020-08-31 | Full-wrapping type comprehensive water-proof and drainage system for water-rich tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN111810236A true CN111810236A (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010899654.8A Pending CN111810236A (en) | 2020-08-31 | 2020-08-31 | Full-wrapping type comprehensive water-proof and drainage system for water-rich tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060084A (en) * | 2021-11-16 | 2022-02-18 | 中铁北京工程局集团有限公司 | Operation method for excavating comprehensive precipitation in deep-buried tunnel |
-
2020
- 2020-08-31 CN CN202010899654.8A patent/CN111810236A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060084A (en) * | 2021-11-16 | 2022-02-18 | 中铁北京工程局集团有限公司 | Operation method for excavating comprehensive precipitation in deep-buried tunnel |
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