CN110130980A - A kind of tunnel drainage device, system and its construction method - Google Patents
A kind of tunnel drainage device, system and its construction method Download PDFInfo
- Publication number
- CN110130980A CN110130980A CN201910287010.0A CN201910287010A CN110130980A CN 110130980 A CN110130980 A CN 110130980A CN 201910287010 A CN201910287010 A CN 201910287010A CN 110130980 A CN110130980 A CN 110130980A
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- Prior art keywords
- tunnel
- pipe
- blind pipe
- draining
- permeable blind
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- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000012423 maintenance Methods 0.000 claims abstract description 67
- 238000004078 waterproofing Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000004746 geotextile Substances 0.000 claims description 15
- 229920002521 macromolecule Polymers 0.000 claims description 15
- 125000004122 cyclic group Chemical group 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000012946 outsourcing Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
Classifications
-
- 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
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
It includes: circumferential Permeable blind pipe that the present invention, which discloses a kind of tunnel drainage device, system and its construction method, the drainage arrangement,；Longitudinal Permeable blind pipe；Tunnel waterproofing layer；Tunnel drainage main pipe；The system comprises tunnel drainage devices described in several sets；The construction method includes: fixed setting longitudinal drainage blind pipe, and the circle draining blind pipe is fixedly installed；Step 2: the first draining maintenance pipe is connected to longitudinal Permeable blind pipe, and the second draining maintenance pipe is connected to circumferential Permeable blind pipe；Step 3: longitudinal Permeable blind pipe and circumferential Permeable blind pipe are connected to branch drain by three-way connection；Step 4: the tunnel being spread and hangs tunnel waterproofing layer；Step 5: moulded lining construction is carried out to the tunnel；Step 6: the first draining maintenance pipe and the second draining maintenance pipe are blocked.Tunnel drainage device, system and its construction method of the present invention realize the maintenance to entire drainage arrangement by setting the first draining maintenance pipe and the second draining maintenance pipe.
Description
Technical field
The present invention relates to technical field of tunnel construction, and in particular to a kind of tunnel drainage device, system and its construction method.
Background technique
Currently, the lining cutting system of draining behind is through frequently with circumferential, longitudinal drainage blind pipe construction method, draining blind pipe passes through center
Ditch is discharged outside tunnel, but such drainage system is located at tunnel-liner behind, does not have maintainability, especially positioned at severe cold
The tunnel in area once enters freezing season, and lined internal drainage system is caused to freeze since temperature is too low, generates frost heave, blocking now
As influencing tunnel internal drainage system normal work, to influence lining concrete entity quality, causing shadow to construction and operation
It rings.And it safeguards that unit needs to put into a large amount of manpower and material resources and handled, increases the difficulty and maintenance cost of operation management.
For example, application No. is the Patent Application Publications of CN201821048142.5 to disclose one kind for Chinese utility model patent
The discharge structure that tunnel bottom hydraulic pressure can be reduced, including the row being set between preliminary bracing structure and secondary liner structure (50)
Water system, drainage system include the longitudinal drainage blind pipe (20) for being set to two sides arch springing position, and are arranged along tunnel longitudinal gap
Circle draining blind pipe (10), the both ends of circle draining blind pipe (10) are connected with ipsilateral longitudinal drainage blind pipe (20), and inverted arch is filled out
It fills in layer (52) and centre drain (40) is set, it is characterized in that: the inverted arch (51) of the secondary liner structure (50) is arranged below
Tunnel bottom drainage system, the tunnel bottom drainage system is from tunnel bottom longitudinal drainage blind pipe (31), reverse aqueduct (33) and tunnel base ring to row
Water blind pipe (34) is constituted, and tunnel bottom longitudinal drainage blind pipe (31) is embedded in the longitudinal groove below centre drain (40), inversely
Aqueduct (33) is arranged along tunnel longitudinal gap, and lower end is connected to tunnel bottom longitudinal drainage blind pipe (31), and upper end side stretches out center
Gutter (40) bottom wall certain altitude；The tunnel bottom circle draining blind pipe (34) is arranged along tunnel longitudinal gap, both ends and same
Side longitudinal drainage blind pipe (20) is connected.
I.e. there are technical problems as described above for the above-mentioned prior art.
Based on above-mentioned technical problem of the existing technology, the present invention proposes a kind of tunnel drainage device, system and its applies
Work method.
Summary of the invention
The present invention provides a kind of tunnel drainage device, system and its construction method, by setting the first draining maintenance pipe and
Second drains maintenance of the maintenance pipe realization to entire drainage arrangement, solves drainage arrangement internal pipeline and generates frost heave, blocking now
As.
In order to achieve the above objectives, the invention adopts the following technical scheme:
A kind of tunnel drainage device, comprising:
Circumferential Permeable blind pipe, on the cyclic annular abutment wall wall for being attached to tunnel；
Longitudinal Permeable blind pipe is installed at the corner at the tunnel side wall both ends, the setting side of the longitudinal direction Permeable blind pipe
To parallel with tunnel axis；
Tunnel waterproofing layer is fitted on the abutment wall in the tunnel and the circumferential Permeable blind pipe and the longitudinal direction is permeable blind
Pipe package；
Tunnel drainage main pipe is connected to the circumferential Permeable blind pipe and longitudinal Permeable blind pipe will flow into the tunnel
The water seepage of tunnel of arterial drainage is discharged.
Further, it is communicated with the first draining maintenance on the high one end in longitudinal Permeable blind pipe position to manage, described first
Dismountable maintenance pipe plug is communicated on draining maintenance pipe；The low one end in the longitudinal direction Permeable blind pipe position is connected to the row
Water branch pipe, the branch drain are connected to the tunnel drainage main pipe.
Further, the both ends of the circumferential Permeable blind pipe are respectively communicated in the branch drain, and the circumferential direction is permeable blind
Pipe is also connected to the second draining maintenance pipe, is communicated with dismountable maintenance pipe plug on the second draining maintenance pipe.
Further, the low one end in longitudinal Permeable blind pipe position, the both ends of the circumferential Permeable blind pipe and the row
It is connected between water branch pipe by three-way connection.
Further, longitudinal Permeable blind pipe is outsourcing geotextilesPunch bellows；The circumferential direction is permeable blind
Pipe is outsourcing geotextilesPunch bellows, wherein punching is for making water seepage of tunnel flow into the branch drain.
Further, the circumferential direction that the cyclic annular abutment wall wall in the tunnel is additionally provided with for being embedded the circumferential Permeable blind pipe is reserved
Slot.
The present invention also provides a kind of tunnel drainage systems, including tunnel drainage device described in several sets, several set tunnels
Drainage arrangement is disposed side by side in the tunnel.
The present invention separately provides a kind of construction method of tunnel drainage device, includes the following steps:
Step 1: longitudinal drainage blind pipe is fixedly installed in the corner position of tunnel side wall two sides, fixation is set at tunnel side wall
Set the circle draining blind pipe；
Step 2: the first draining maintenance pipe being connected to the high one end in longitudinal Permeable blind pipe position, the second draining is tieed up
Pillar is connected to the two sides of the circumferential Permeable blind pipe；
Step 3: one end of the low one end in longitudinal Permeable blind pipe position and the circumferential Permeable blind pipe is passed through into threeway
Connector is connected to branch drain, and branch drain is connected to tunnel drainage main pipe；
Step 4: the tunnel being spread and hangs tunnel waterproofing layer, is opened up on the tunnel waterproofing layer by the first draining maintenance
The hole that the extension end of pipe and the extension end of the second draining maintenance pipe are stretched out；
Step 5: moulded lining construction is carried out to the tunnel；
Step 6: by the first draining maintenance pipe and the outer cable groove sidewall for being extended down to tunnel of the second draining maintenance pipe
On, and the first draining maintenance pipe and the second draining maintenance pipe are blocked.
Further, if the circumferential direction Permeable blind pipe and longitudinal Permeable blind pipe are because of frost blocking, using high steam
It is passed through the first draining maintenance pipe and the second draining maintenance is managed so that frost is melted, then is rinsed and dredged by high pressure water.
Preferably, tunnel waterproofing layer described in step 4 uses 400g/m2Geotextiles be bonded with EVA splash guard.
Preferably, tunnel waterproofing layer described in step 4 include the first geotextile layer successively glued together, it is first high
Molecule waterproof lamellar, EVA waterproof lamellar, the second macromolecule waterproof lamellar and the second geotextile layer composition, wherein described first is high
Molecule waterproof lamellar and the second macromolecule waterproof lamellar are PVC splash guard, the first macromolecule waterproof lamellar, described
The both side surface of EVA waterproof lamellar and the second macromolecule waterproof lamellar is equipped with self-adhesive glue layer.
Compared with prior art, superior effect of the invention is:
1, tunnel drainage device of the present invention, it is real by being equipped with the first draining maintenance pipe and the second draining maintenance pipe
Now to the maintenance of entire drainage arrangement, solves drainage arrangement internal pipeline and generate frost heave, clogging.
2, the construction method of tunnel drainage device of the present invention, by the way that the tunnel drainage device is embedded in tunnel
In, so that the tunnel drainage device is combined together with tunnel, is not easy to send failure and damage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of tunnel drainage device in the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram that tunnel drainage device is connected with tunnel in the embodiment of the present invention 1；
In figure: 1- circumferential direction Permeable blind pipe, the longitudinal direction 2- Permeable blind pipe, 3- tunnel waterproofing layer, 4- tunnel drainage main pipe, 5- first
Draining maintenance pipe, 6- branch drain, 8- second draining maintenance pipe.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail, it should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Embodiment 1
As shown in Figs. 1-2, a kind of tunnel drainage device, comprising:
Circumferential Permeable blind pipe 1, on the cyclic annular abutment wall wall for being attached to tunnel；
Longitudinal Permeable blind pipe 2 is installed at the corner at the tunnel side wall both ends, the setting of the longitudinal direction Permeable blind pipe 2
Direction is parallel with tunnel axis；
Tunnel waterproofing layer 3 is fitted on the abutment wall in the tunnel and the circumferential Permeable blind pipe 1 and the longitudinal direction is permeable
Blind pipe 2 wraps up；
Tunnel drainage main pipe 4 is connected to the circumferential Permeable blind pipe 1 and longitudinal Permeable blind pipe 2 with described in flowing into
The water seepage of tunnel of tunnel drainage main pipe 4 is discharged.
It is using clip that circumferential Permeable blind pipe 1 is fixed for the ease of fixation of the circumferential Permeable blind pipe 1 on cyclic annular abutment wall wall
On the cyclic annular abutment wall in tunnel.
Wherein, in the present embodiment, the tunnel drainage main pipe 4 is usedPvc pipe, the tunnel drainage main pipe 4 with
The drainage system in tunnel is connected to, in order to be conducive to the discharge of water seepage of tunnel, it should be ensured that in the laying of the tunnel drainage main pipe 4
Possess certain gradient in journey, for example, the gradient is 2-6 °.
The first draining maintenance pipe 5, the first draining maintenance are communicated on the high one end in longitudinal direction 2 position of Permeable blind pipe
Dismountable maintenance pipe plug is communicated on pipe 5；The low one end in longitudinal direction 2 position of Permeable blind pipe is connected to the branch drain
6, the branch drain 6 is connected to the tunnel drainage main pipe 4.
In the present embodiment, one end by an elbow with certain angle that 2 position of longitudinal Permeable blind pipe is high
It is connected with the first draining maintenance pipe 5.Introduced contaminants, which are avoided, by the maintenance pipe plug enters the first row
Water is safeguarded within pipe 5, in use, the maintenance pipe plug is opened, it is saturating to the longitudinal direction by the first draining maintenance pipe 5
Water blind pipe 2 is safeguarded.
The both ends of the circumferential direction Permeable blind pipe 1 are respectively communicated with the branch drain that the tunnel lower part is arranged in two
6, two branch drains 6 are connected to the tunnel drainage main pipe 4, and the circumferential direction Permeable blind pipe 1 is also connected to the second draining
It safeguards pipe 8, is communicated with dismountable maintenance pipe plug on the second draining maintenance pipe 8.
The setting height of the second draining maintenance pipe 8 should be conducive to make to be extended down to tunnel outside the second draining maintenance pipe 8
In cable groove sidewall.In the present embodiment, keep the second draining maintenance pipe 8 and the circumferential direction permeable blind using a three-way connection
Pipe 1 is connected to.
The low one end in longitudinal direction 2 position of Permeable blind pipe, the both ends of the circumferential Permeable blind pipe 1 and the branch drain 6
Between pass through three-way connection be connected to.
The longitudinal direction Permeable blind pipe 2 is outsourcing geotextilesPunch bellows；The circumferential direction Permeable blind pipe 1 is outer
Packet geotextilesPunch bellows, wherein punching is for making water seepage of tunnel flow into the branch drain 6.
It is provided on the punching bellows severalCircular hole, the punching bellows can also offer slotted eye,
Direction hole or strip-shaped hole.
The present invention also provides a kind of tunnel drainage systems, including tunnel drainage device described in several sets, several set tunnels
Drainage arrangement is disposed side by side in the tunnel.
A kind of construction method of tunnel drainage device, includes the following steps:
Step 1: longitudinal drainage blind pipe 2 is fixedly installed in the corner position of tunnel side wall two sides, is fixed at tunnel side wall
The circle draining blind pipe 2 is set；
Step 2: the first draining maintenance pipe 5 being connected to the high one end in 2 position of longitudinal Permeable blind pipe, by the second draining
Maintenance pipe 8 is connected to the two sides of the circumferential Permeable blind pipe 1；
Step 3: one end of the low one end in 2 position of longitudinal Permeable blind pipe and the circumferential Permeable blind pipe 1 is passed through three
Pass joint is connected to branch drain 6, and branch drain 6 is connected to tunnel drainage main pipe 4；
Step 4: the tunnel being spread and hangs tunnel waterproofing layer 3, is opened up on the tunnel waterproofing layer 3 by the first draining dimension
The hole that the extension end of pillar 5 and the extension end of the second draining maintenance pipe 8 are stretched out；
Step 5: moulded lining construction is carried out to the tunnel；
Step 6: the cable trough side in tunnel will be extended down to outside the first draining maintenance pipe 5 and the second draining maintenance pipe 8
On wall, and the first draining maintenance pipe 5 and the second draining maintenance pipe 8 are blocked.
Tunnel waterproofing layer 3 described in step 4 uses 400g/m2Geotextiles be bonded with EVA splash guard.
Embodiment 2
The cyclic annular abutment wall wall in the tunnel is additionally provided with the circumferential preformed groove for being embedded the circumferential Permeable blind pipe 1.At this
Only circumferential preformed groove is defined in embodiment, it is in addition to this, in the same manner as in Example 1.
Embodiment 3
When winter, temperature is low, if the circumferential direction Permeable blind pipe 1 and longitudinal Permeable blind pipe 2 are blocked because freezing, using height
Pressure steam is passed through the first draining maintenance pipe 5 and the second draining maintenance pipe 8 so that frost is melted, then passes through high pressure water flushing
Wash dredging.Only the opposite first draining maintenance pipe 5 and the second draining maintenance pipe 8 are passed through high steam in the present embodiment
It is rinsed the step of dredging with by high pressure water, it is in the same manner as in Example 1 in addition to above-mentioned restriction.
Technical solution as above also can be used in the tunnel drainage main pipe 4 frost blocking do the tunnel drainage
The dredging of pipe 4.
Embodiment 4
In the step 4 of the present embodiment, the tunnel waterproofing layer include the first geotextile layer successively glued together,
First macromolecule waterproof lamellar, EVA waterproof lamellar, the second macromolecule waterproof lamellar and the second geotextile layer composition, wherein described
First macromolecule waterproof lamellar and the second macromolecule waterproof lamellar are PVC splash guard, the first macromolecule splash guard
The both side surface of layer, the EVA waterproof lamellar and the second macromolecule waterproof lamellar is equipped with self-adhesive glue layer, removes above-mentioned restriction
Except, it is in the same manner as in Example 1.
The present invention is not limited to the above embodiments, and the above embodiments and description only describe of the invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these change and change
Into all fall within the protetion scope of the claimed invention.The claimed scope of the invention is defined by the following claims.
Claims (9)
1. a kind of tunnel drainage device characterized by comprising
Circumferential Permeable blind pipe, on the cyclic annular abutment wall wall for being attached to tunnel；
Longitudinal Permeable blind pipe is installed at the corner at the tunnel side wall both ends, it is described longitudinal direction Permeable blind pipe setting direction with
Tunnel axis is parallel；
Tunnel waterproofing layer is fitted on the abutment wall in the tunnel and by the circumferential Permeable blind pipe and longitudinal Permeable blind pipe packet
It wraps up in；
Tunnel drainage main pipe is connected to the circumferential Permeable blind pipe and longitudinal Permeable blind pipe will flow into the tunnel drainage
The water seepage of tunnel of main pipe is discharged；It is communicated with the first draining maintenance pipe on the high one end in the longitudinal direction Permeable blind pipe position, described the
Dismountable maintenance pipe plug is communicated on one draining maintenance pipe；The one end at the longitudinal direction Permeable blind pipe position bottom is connected to described
Branch drain, the branch drain are connected to the tunnel drainage main pipe.
2. tunnel drainage device according to claim 1, which is characterized in that the both ends of the circumferential direction Permeable blind pipe connect respectively
The branch drain is passed through, the circumferential direction Permeable blind pipe is also connected to the second draining maintenance pipe, and second draining is safeguarded on pipe
It is communicated with detachable maintenance pipe plug.
3. tunnel drainage device according to claim 2, which is characterized in that the one of the longitudinal direction Permeable blind pipe position bottom
It holds, pass through three-way connection connection between the both ends and the branch drain of the circumferential Permeable blind pipe.
4. tunnel drainage device according to claim 1, which is characterized in that the longitudinal direction Permeable blind pipe is outsourcing geotextiles
φ 100 punch bellows；The circumferential direction Permeable blind pipe is that the φ 80 of outsourcing geotextiles punches bellows, wherein punching is used for
Water seepage of tunnel is set to flow into the branch drain.
5. tunnel drainage device according to claim 1, which is characterized in that the cyclic annular abutment wall wall in the tunnel is additionally provided with use
In the circumferential preformed groove for being embedded the circumferential Permeable blind pipe.
6. a kind of tunnel drainage system, which is characterized in that including the described in any item tunnel drainage dresses of several set claim 1-5
It sets, several set tunnel drainage devices are disposed side by side in the tunnel.
7. a kind of construction method of tunnel drainage device, which comprises the steps of:
Step 1: longitudinal drainage blind pipe is fixedly installed in the corner position of tunnel side wall two sides, institute is fixedly installed at tunnel side wall
State circle draining blind pipe；
Step 2: the first draining maintenance pipe being connected to the high one end in longitudinal Permeable blind pipe position, by the second draining maintenance pipe
It is connected to the two sides of the circumferential Permeable blind pipe；
Step 3: one end of the low one end in longitudinal Permeable blind pipe position and the circumferential Permeable blind pipe is passed through into three-way connection
It is connected to branch drain, branch drain is connected to tunnel drainage main pipe；
Step 4: the tunnel being spread and hangs tunnel waterproofing layer, is opened up on the tunnel waterproofing layer by the first draining maintenance pipe
The hole that extension end and the extension end of the second draining maintenance pipe are stretched out；
Step 5: moulded lining construction is carried out to the tunnel；
Step 6: the first draining maintenance is managed and is extended down in the cable groove sidewall in tunnel with outside the second draining maintenance pipe, and
The first draining maintenance pipe and the second draining maintenance pipe are blocked.
Step 7: if the tunnel drainage blind pipe is melted in blind pipe using high steam because frost is blocked and freezes blocking position, and
Dredging lining cutting draining blind pipe behind is rinsed using high pressure water.
8. the construction method of tunnel drainage device according to claim 7, which is characterized in that tunnel described in step 4
Waterproof layer uses 400g/m2Geotextiles be bonded with EVA splash guard.
9. the construction method of tunnel drainage device according to claim 7, which is characterized in that tunnel described in step 4
Waterproof layer includes the first geotextile layer successively glued together, the first macromolecule waterproof lamellar, EVA waterproof lamellar, second high
Molecule waterproof lamellar and the second geotextile layer composition, wherein the first macromolecule waterproof lamellar and second macromolecule are anti-
Water plate layer is PVC splash guard, and the first macromolecule waterproof lamellar, the EVA waterproof lamellar and second macromolecule are anti-
The both side surface of water plate layer is equipped with self-adhesive glue layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910287010.0A CN110130980A (en) | 2019-04-11 | 2019-04-11 | A kind of tunnel drainage device, system and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910287010.0A CN110130980A (en) | 2019-04-11 | 2019-04-11 | A kind of tunnel drainage device, system and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110130980A true CN110130980A (en) | 2019-08-16 |
Family
ID=67569625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910287010.0A Pending CN110130980A (en) | 2019-04-11 | 2019-04-11 | A kind of tunnel drainage device, system and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110130980A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469365A (en) * | 2019-08-22 | 2019-11-19 | 西南交通大学 | A kind of tunnel-liner large area percolating water ejectment device and construction method |
| CN111022071A (en) * | 2020-01-10 | 2020-04-17 | 中交第二公路勘察设计研究院有限公司 | Construction method for full-section lining of medium-slightly weathered granite section drilling-blasting tunnel |
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| CN110469365A (en) * | 2019-08-22 | 2019-11-19 | 西南交通大学 | A kind of tunnel-liner large area percolating water ejectment device and construction method |
| CN111022071A (en) * | 2020-01-10 | 2020-04-17 | 中交第二公路勘察设计研究院有限公司 | Construction method for full-section lining of medium-slightly weathered granite section drilling-blasting tunnel |
| CN111022071B (en) * | 2020-01-10 | 2021-11-02 | 中交第二公路勘察设计研究院有限公司 | Construction method for full-section lining of medium-slightly weathered granite section drilling-blasting tunnel |
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Application publication date: 20190816 |