CN109026143A - A kind of interim concentration ejectment device and its application method for lithologic character stratum Tunnel Gushing - Google Patents
A kind of interim concentration ejectment device and its application method for lithologic character stratum Tunnel Gushing Download PDFInfo
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- CN109026143A CN109026143A CN201810823427.XA CN201810823427A CN109026143A CN 109026143 A CN109026143 A CN 109026143A CN 201810823427 A CN201810823427 A CN 201810823427A CN 109026143 A CN109026143 A CN 109026143A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000011435 rock Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 241001149930 Protura <class> Species 0.000 claims description 27
- 238000005553 drilling Methods 0.000 claims description 11
- 230000011218 segmentation Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 14
- 239000002184 metal Substances 0.000 description 11
- 239000012141 concentrate Substances 0.000 description 8
- 239000004744 fabric Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000004746 geotextile Substances 0.000 description 3
- 238000001467 acupuncture Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 241001427932 Bothragonus swanii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
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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)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a kind of interim concentration ejectment devices and its application method for lithologic character stratum Tunnel Gushing, device includes the shell mechanism for country rock pore-forming and support hole wall, the shell mechanism front-end surface uniformly digs apertured hole, and hole drainage hole wall seeps water to internal drainage space；The device further includes the ejectment structure for collecting discharge infiltration, and ejectment structure side outer wall is close to shell mechanism inner wall, the other side is connected to exterior space.The present invention solves the problems, such as that lithologic character stratum tunnel needs to carry out temporary drainage to face during excavation, ensure that working security, shortens the constructing tunnel period, reduce project cost.
Description
Technical field
The present invention relates to constructing tunnel field, specially a kind of interim concentration ejectment for lithologic character stratum Tunnel Gushing is filled
It sets and its application method.
Background technique
Tunnel Gushing is to influence one of construction safety and the principal element of construction speed.When Tunnel Passing Karst Area
Or when rich water fault belt, underground water, which will wash away rock stratum, causes face to excavate difficulty increase, or even face water burst occurs
Situations such as, it causes construction equipment or even tunnel to be flooded, seriously affects construction safety and construction speed.Currently, for lithology
Common administering method when layer constructing tunnel water burst are as follows: advance borehole draining, service gallery draining and water plugged by grouting.Advance drilling
Hole drainage hole depth is larger, and speed of application is slower, the situation less abundant suitable for underground water, and in groundwater pressure mistake
Drilling draining is difficult to realize at big shear-zone；Service gallery should be with tunnel main tunnel keeping parallelism or close to parallel, and requires super
Preceding 10~20m, drainage effect becomes apparent compared with advance borehole draining, but higher cost；Subsurface flow can be truncated in water plugged by grouting,
Reduce percolating water and flow into work surface, create good operating condition for construction, but there is also speed of application slowly with construction cost height
The problems such as.
Therefore, it is necessary to the methods that front of tunnel heading underground water can be quickly and efficiently discharged in one kind, can meet construction
Convenient, fast, safe requirement, and can guarantee construction of the tunnel when passing through Karst Area and rich water fault belt
Efficiency.
Summary of the invention
The invention aims to solve the deficiency of above-mentioned background technique, provide that a kind of structure is simple, cost is relatively low, uses
The interim concentration ejectment device and its application method for lithologic character stratum Tunnel Gushing that be convenient and being capable of quick ejectment.
In order to solve the above technical problems, a kind of technical solution that the present invention uses are as follows: one kind is gushed for lithologic character stratum tunnel
The interim concentration ejectment device of water, including shell mechanism and ejectment structure, the shell mechanism wrap up ejectment structure, the ejectment
Structure one end outer wall is close to shell mechanism inner wall, and the ejectment structure other end is connected to exterior space, the shell mechanism packet
Conehead hollow circular tube and fixed disc are included, the conehead end of the conehead hollow circular tube is used for country rock pore-forming, the hollow circle of conehead
The round tube end of pipe is connected and fixed disk, and the ejectment structure includes selective filter layer, catchment fixing layer and ejectment round tube, described
Selective filter layer wraps up catchment fixing layer and ejectment round tube, and the selective filter layer outside is tight with conehead hollow circular tube inner wall
Patch；The fixing layer that catchments is set between selective filter layer and ejectment round tube, and is segmented and is wrapped in except ejectment round tube.
As a kind of perferred technical scheme, it is permeable to be equipped with hollow circular tube for conehead hollow circular tube front end even tube wall chisel
Hole.
As a kind of perferred technical scheme, the fixed disc is drilled with fixed circular hole, by fixing circular hole to country rock
Set fixed screw.
As a kind of perferred technical scheme, the ejectment tube wall, which is uniformly dug, is equipped with the permeable hole of ejectment round tube.
In order to solve the above technical problems, the another technical solution that the present invention uses are as follows: one kind is used for lithologic character stratum tunnel
The step of application method of the interim concentration ejectment device of water burst, the application method, is as follows:
(1) shift to an earlier date the prefabricated Each part for completing ejectment device；
(2) by specific spacing will catchment fixing layer segmentation be wrapped in outside ejectment round tube, and using selective filter layer will collect
Hydropexis layer is wrapped up with ejectment round tube, forms ejectment structure；
(3) ejectment structure is placed in shell mechanism and is fixed, form the interim collection for being used for lithologic character stratum Tunnel Gushing
Middle ejectment device, the device must just can be carried out embedded work after preliminary bracing is completed in tunnel；
(4) the lithologic character stratum country rock situation passed through when being constructed by tunnel is different, by the method for embedding of device with
It passes through hard rock and soft rock is divided into following two method for embedding:
1. sentencing one using hand-held drifter is more apparent to face percolating water when tunnel tunnel face rock matter is hard rock
Determine angle to drill, the bit size and face of hand-held drifter pierce depth should be with the size phase of shell mechanism
Match, ejectment device is placed in hole after the completion of drilling, is in close contact fixed disc and country rock；
2. by way of manually setting, ejectment device is beaten at a certain angle when tunnel tunnel face rock matter is soft rock
Enter the more apparent position of face percolating water, when in device merging hole, is in close contact fixed disc and country rock；
(5) fixed screw is set to country rock by fixed circular hole, ejectment device, which is fixed on face, to be arranged
Device taking-up can be carried out next step constructing tunnel process after the completion by water, temporary drainage.
A kind of application method of the interim concentration ejectment device for lithologic character stratum Tunnel Gushing, it is characterised in that this method
Use steps are as follows:
(1) shift to an earlier date the prefabricated Each part for completing ejectment device；
(2) by specific spacing will catchment fixing layer segmentation be wrapped in outside ejectment round tube, and using selective filter layer will collect
Hydropexis layer is wrapped up with ejectment round tube, forms ejectment structure；
(3) ejectment structure is placed in shell mechanism and is fixed, form the interim collection for being used for lithologic character stratum Tunnel Gushing
Middle ejectment device, the device must just can be carried out embedded work after preliminary bracing is completed in tunnel；
(4) the lithologic character stratum country rock situation passed through when being constructed by tunnel is different, by the method for embedding of device with
It passes through hard rock and soft rock is divided into following two method for embedding:
1. sentencing one using hand-held drifter is more apparent to face percolating water when tunnel tunnel face rock matter is hard rock
Determine angle to drill, the bit size and face of hand-held drifter pierce depth should be with the size phase of shell mechanism
Match, ejectment device is placed in hole after the completion of drilling, is in close contact fixed disc and country rock；
2. by way of manually setting, ejectment device is beaten at a certain angle when tunnel tunnel face rock matter is soft rock
Enter the more apparent position of face percolating water, when in device merging hole, is in close contact fixed disc and country rock；
(5) fixed screw is set to country rock by fixed circular hole, ejectment device, which is fixed on face, to be arranged
Device taking-up can be carried out next step constructing tunnel process after the completion by water, temporary drainage.
Compared with prior art, the beneficial effects of the present invention are: Tunnel Gushing of the invention temporarily concentrates ejectment device
Structure is simple and can be prefabricated in advance, and when site operation only needs prefabricated ejectment device squeezing into the more apparent place of face percolating water i.e.
It can effectively drain.Underground water in rock stratum enters ejectment round tube by the permeable hole of shell mechanism and selective filter layer
In, water is expelled directly out by ejectment round tube.Compared with the prior art, which can not only preferably solve area and face
When the demand that drains, and tiny rubble can be effectively isolated to solve the problems, such as plugging, guarantee drainage arrangement working efficiency, and
And can be recycled after use, save cost；In addition, application method of the invention is easily operated, scene is not necessarily to
Other heavy duty work machines, possess that cost is relatively low and advantage easy to use, can be fast in the more rich lithologic character stratum of underground water
Speed efficiently solves burst problem, guarantees construction safety and construction speed.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the schematic perspective view that Tunnel Gushing of the present invention temporarily concentrates ejectment device.
Fig. 2 is the schematic view of the front view that Tunnel Gushing of the present invention temporarily concentrates ejectment device.
Fig. 3 is A-A schematic cross-sectional view in Fig. 2.
Fig. 4 is that Tunnel Gushing of the present invention temporarily concentrates ejectment device for the interim central drainage schematic diagram of face.
Wherein: 1, shell mechanism；11, conehead hollow circular tube；111, the permeable hole of hollow circular tube；12, fixed disc；121,
Fixed circular hole；122, fixed screw；2, ejectment structure；21, selective filter layer；22, catchment fixing layer；23, ejectment round tube；
231, the permeable hole of ejectment round tube.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
As shown in Figures 1 to 4, the Tunnel Gushing of the present embodiment temporarily concentrates ejectment device, including shell mechanism 1 and ejectment
Structure 2, shell mechanism 1 wrap up ejectment structure 2, and 2 side outer wall of ejectment structure is close to 1 inner wall of shell mechanism, the other side and outside
Space connection.The Tunnel Gushing temporarily concentrates ejectment apparatus structure simple and can be prefabricated in advance, and when site operation only needs will be pre-
Ejectment device processed is squeezed into the more apparent place of face percolating water and can effectively be drained.Underground water in rock stratum is permeable by shell mechanism
Hole and selective filter layer enter in ejectment round tube, are expelled directly out water by ejectment round tube.Compared with the prior art, should
Ejectment device can not only preferably solve the demand of face temporary drainage, and can be effectively isolated tiny rubble to solve
Certainly plugging problem guarantees drainage arrangement working efficiency, and can be recycled after use, saves cost；In addition,
Application method of the invention is easily operated, and scene is not necessarily to other heavy duty work machines, possesses that cost is relatively low and easy to use excellent
Point can fast and effeciently solve burst problem in the more rich lithologic character stratum of underground water, guarantee construction safety and construct into
Degree.
In the present embodiment, shell mechanism 1 includes conehead hollow circular tube 11 and fixed disc 12,11 conehead of conehead hollow circular tube
End is used for country rock pore-forming, and round tube end is connected and fixed disk 12.The shell mechanism 1 of the present embodiment is by squeezing into cone to face country rock
Head hollow circular tube 11 forms circular hole and supports hole wall, protects its internal drainage space i.e. ejectment structure 2.Fixed disc position
In 1 end of shell mechanism, guarantees the fixation of shell mechanism 1 by the connection with country rock, prevent device during ejectment from sliding
It is dynamic even to fall off.The conehead hollow circular tube 11 and fixed disc 12 of the present embodiment are carried out using welding electrode arc welding in the prior art
Connection.
In the present embodiment, conehead hollow circular tube conehead uses diameter for 10cm~15cm, and depth is the metal of 5cm~10cm
Taper bit, hollow circular tube are equal to or slightly less than conehead using outer diameter, and pipe thickness is 4mm~10mm, pipe range 50cm~100cm
Hollow metal round tube, conehead and hollow circular tube are attached using welding electrode arc welding in the prior art.The cone of the present embodiment
Head hollow circular tube front end even tube wall chisel is equipped with the permeable hole 111 of hollow circular tube, and country rock water burst passes through the permeable hole of hollow circular tube
111 flow into ejectment structure 2.The permeable hole 111 of hollow circular tube in conehead hollow circular tube front end carry out cloth hole, cloth hole length 20cm~
40cm, cloth hole density are 8~15/ring, and interannular spacing is 2cm~4cm, and hole form is preferentially heavy using cone in the prior art
Hole, aperture is 9.6mm~12.8mm on the outside of hole, and medial aperture is 4.4mm~6.6mm, is fed depth 2.7mm~3.3mm, can also
Using circular hole, elliptical aperture etc..Chisel sets the different cone counterbore of inside and outside lateral aperture and can make to pour in ejectment structure on conehead hollow circular tube
Under the premise of water is basicly stable, it can be relieved the underground water that has been flowed into device and pass through the feelings of permeable hole bleeder again
Condition guarantees ejectment device drainage efficiency.
In the present embodiment, fixed disc 12 is drilled with fixed circular hole 121, sets fixation to country rock by fixed circular hole 121
Screw 122.The fixed disc 12 of the present embodiment uses hollow metal disk, and internal diameter is equal with hollow circular tube 112, and outer diameter is compared with internal diameter
Long 5cm~10cm, thickness 5mm~10mm, fixed screw 122 use setscrew in the prior art, screw specification be M6~
M10, screw length are 80mm~120mm, fixed circular hole 121 can be used drilling machine drill through it is corresponding with 122 specification of fixed screw
Screw hole obtain.
In the present embodiment, ejectment structure 2 includes selective filter layer 21, catchment fixing layer 22 and ejectment round tube 23, selection
Property filter layer 21 wrap collection water layer 22 and ejectment round tube 23, outside is close to 11 inner wall of conehead hollow circular tube；It catchments solid
Given layer 22 is set between selective filter layer 21 and ejectment round tube 23, and is segmented and is wrapped in except ejectment round tube 23, is set between section
There is spacing.Selective filter layer 21 is located at 2 outermost layer of ejectment structure, has the function of the selective filter of permeable resistance sand, Neng Gouyou
Effect ground prevents tiny rubble from entering in ejectment structure 2, to solve the problems, such as ejectment device plugging, guarantees drainage arrangement work effect
Rate.The fixing layer 22 that catchments is located at 2 middle layer of ejectment structure, and segmentation is wrapped in except ejectment round tube 23, can squeeze country rock and lead
The bad deformation of the device of cause is buffered, and offset, torsion of the ejectment round tube 23 during ejectment is avoided, to ejectment round tube
23 play positioning and protective effect, and have stronger water absorbing properties, can absorb the initial stage infiltration of ejectment rapidly, improve device and draw
Arrange efficiency.The selective filter layer 21 of the present embodiment uses acupuncture nonwoven geotextiles, weight specification 150g/m2~300g/m2,
Thickness is greater than or equal to 0.9mm, and the fixing layer 22 that catchments is segmented using PVA foaming sponge and wraps up ejectment round tube 23, and Duan Kuanwei 2cm~
3cm, spacing is 3cm~5cm between section, and thickness is equal to or more than 5mm.Ejectment round tube 23 is hard PVC pipe in the prior art, firmly
It is 10cm~20cm long compared with hollow circular tube 112 that the outer diameter of pvc pipe is slightly smaller than 112 internal diameter of hollow circular tube, length.Hard PVC pipe can reach
The standard requirements of drainpipe, tensile yield strength are greater than 40MPa, and falling weight impact test is less than 10%.PVA foaming sponge, needle thorn
Non-woven geotextile and hard PVC pipe, which all have, is easy to materials, advantage low in cost.
In the present embodiment, 23 even tube wall of ejectment round tube chisel is equipped with the permeable hole 231 of ejectment round tube, ejectment round tube permeable hole
231 cloth hole density of hole is 10~15/ring, and interannular is away from being 2~3cm, and using circular hole in the prior art, aperture is hole form
Elliptical aperture, square hole etc. can also be used in 6~10mm.
Embodiment two
The Tunnel Gushing of the present embodiment temporarily concentrates the implementation steps of ejectment device as follows:
(1) pipe thickness 8mm, pipe range 80cm, outer diameter 11.6cm are taken, taper bit diameter 12cm, in the conehead of depth 8cm
Empty metal circular tube uses drilling instrument permeable in setting in the form of boring counterbore within the scope of conehead hollow metal round tube front end 30cm
Hole, boring aperture on the outside of counterbore is 10mm, medial aperture 5mm, is fed depth 3mm, and cloth hole density is 15/ring, interannular spacing
3cm；Outer diameter 10cm is taken, the hard PVC pipe of length 90cm sets aperture 8mm, 15/ring of cloth hole density, interannular using drilling machine
Away from the permeable circular hole for 3cm；
(2) the wide 3cm of section, the PVA foaming sponge of thickness 1cm, interval 5cm segmentation package hard PVC pipe are taken；Thickness 2mm is taken, weight
Gauge lattice are 200g/m2Acupuncture nonwoven geotextiles, be wrapped in except PVA foam sponge and hard PVC pipe and form ejectment structure；
(3) outer diameter 18cm, the hollow metal disk of internal diameter 11.6mm, thickness 7mm, using drilling machine in hollow metal are taken
Disc surfaces drill through 3 8mm circular screwholes, using welding electrode arc welding by conehead hollow circular tube in hollow metal disk and step 1
Pipe end is welded, and shell mechanism is formed.The ejectment structure formed in step 2 is placed in shell mechanism and is fixed, is formed
Interim concentration ejectment device for lithologic character stratum Tunnel Gushing；
(4) after the completion of Tunnel, the lithologic character stratum situation passed through when being constructed according to tunnel is different, draws
The embedded work of arranging device is divided into two kinds of situations:
1. when tunnel tunnel face rock matter is hard rock, the hand-held rock drilling that is matched using drill bit and ejectment plant bulk
Machine offsets up 5 ° on the basis of face normal direction and drills in face percolating water more apparent sentence, and face pierces
Depth should be 80cm, and the ejectment device in step 3 is placed in hole after the completion of drilling, keep hollow metal disk and country rock close
Contact；
2. when tunnel tunnel face rock matter is soft rock, by the ejectment device in step 3 by way of manually setting, with
5 ° are offset up on the basis of face normal direction and squeezes into the more apparent position of face percolating water, and are made hollow metal disk and enclosed
Rock is in close contact；
(5) by diameter 8mm, the M8 setscrew of length 95mm squeezes into country rock at the circular screwhole on hollow metal disk
In to fix ejectment device, to temporary drainage after by ejectment device taking-up can carry out next step constructing tunnel process.
The Tunnel Gushing of the present embodiment temporarily concentrates ejectment device and its application method to be suitable for lithologic character stratum tunnel face
The water burst situation that face occurs, is particularly suitable for the water burst feelings occurred when Tunnel Passing Karst Area or rich water fault belt
Condition.The device overcomes the defect of existing Water outburst treatment method, on the more rich stratum of underground water, can fast and effeciently solve
Face burst problem guarantees construction safety and construction speed, and the device is able to carry out recycles after use, saves
Cost, with considerable engineering significance and significant economic advantages, raising and improvement to constructing tunnel field technology have weight
Want meaning.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example.To those of ordinary skill in the art, obtained improvement and change in the case where not departing from the technology of the present invention concept thereof
It changes and also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of interim concentration ejectment device for lithologic character stratum Tunnel Gushing, which is characterized in that including shell mechanism (1) and
Ejectment structure (2), the shell mechanism (1) wrap up ejectment structure (2), and ejectment structure (2) one end outer wall is close to shell knot
Structure (1) inner wall, ejectment structure (2) other end are connected to exterior space, and the shell mechanism (1) includes conehead hollow circular tube
(11) and fixed disc (12), the conehead end of the conehead hollow circular tube (11) are used for country rock pore-forming, the conehead hollow circular tube
(11) round tube end is connected and fixed disk (12), and the ejectment structure (2) includes selective filter layer (21), catchment fixing layer
(22) and ejectment round tube (23), selective filter layer (21) package catchments fixing layer (22) and ejectment round tube (23), described
It is close on the outside of selective filter layer (21) with conehead hollow circular tube (11) inner wall；The fixing layer that catchments (22) is set to selectivity
Between filter layer (21) and ejectment round tube (23), and it is segmented and is wrapped in except ejectment round tube (23).
2. a kind of interim concentration ejectment device for lithologic character stratum Tunnel Gushing according to claim 1, feature exist
In: conehead hollow circular tube (11) the front end even tube wall chisel is equipped with the permeable hole of hollow circular tube (111).
3. a kind of interim concentration ejectment device for lithologic character stratum Tunnel Gushing according to claim 1, feature exist
In: the fixed disc (12) is drilled with fixed circular hole (121), sets fixed screw to country rock by fixed circular hole (121)
(122)。
4. a kind of interim concentration ejectment device for lithologic character stratum Tunnel Gushing according to claim 1, feature exist
In: ejectment round tube (23) the even tube wall chisel is equipped with the permeable hole of ejectment round tube (231).
5. a kind of application method of the interim concentration ejectment device for lithologic character stratum Tunnel Gushing, it is characterised in that the user
The step of method, is as follows:
(1) shift to an earlier date the prefabricated Each part for completing ejectment device；
(2) by specific spacing will catchment fixing layer (22) segmentation be wrapped in ejectment round tube (23) outside, and use selective filter layer
(21) fixing layer (22) that will catchment is wrapped up with ejectment round tube (23), is formed ejectment structure (2)；
(3) ejectment structure (2) is placed in shell mechanism (1) and is fixed, formed for the interim of lithologic character stratum Tunnel Gushing
Ejectment device is concentrated, which must just can be carried out embedded work after preliminary bracing is completed in tunnel；
(4) the lithologic character stratum country rock situation passed through when being constructed by tunnel is different, by the method for embedding of device to pass through
Hard rock and soft rock are divided into following two method for embedding:
1. sentencing certain angle using hand-held drifter is more apparent to face percolating water when tunnel tunnel face rock matter is hard rock
Degree drills, and the bit size and face of hand-held drifter pierce depth should be with the size phase of shell mechanism (1)
Match, ejectment device is placed in hole after the completion of drilling, is in close contact fixed disc (12) and country rock；
2. by way of manually setting, ejectment device is squeezed into the palm at a certain angle when tunnel tunnel face rock matter is soft rock
The sub- more apparent position of face percolating water is in close contact fixed disc (12) and country rock when in device merging hole；
(5) fixed screw (122) are set to country rock by fixed circular hole (121), ejectment device is fixed on face
It is drained, device taking-up can be subjected to next step constructing tunnel process after the completion of temporary drainage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810823427.XA CN109026143A (en) | 2018-07-25 | 2018-07-25 | A kind of interim concentration ejectment device and its application method for lithologic character stratum Tunnel Gushing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810823427.XA CN109026143A (en) | 2018-07-25 | 2018-07-25 | A kind of interim concentration ejectment device and its application method for lithologic character stratum Tunnel Gushing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985120A (en) * | 2019-12-31 | 2020-04-10 | 中铁十六局集团北京轨道交通工程建设有限公司 | Precipitation construction method and system for tunnel connection channel of fractured clay layer |
| CN112855261A (en) * | 2020-12-30 | 2021-05-28 | 山东大学 | Drainage device, system and method suitable for TBM tunnel induced polarization instrument |
| CN113738444A (en) * | 2021-09-18 | 2021-12-03 | 同济大学 | Tunnel is prevented and treated with double-barrelled gravel of filling and impress anti-thorn formula ball valve device |
| CN113914927A (en) * | 2021-10-29 | 2022-01-11 | 同济大学 | Combined film bag type gravel pasting filtering and water draining device for high-water-pressure tunnel |
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| CN112855261A (en) * | 2020-12-30 | 2021-05-28 | 山东大学 | Drainage device, system and method suitable for TBM tunnel induced polarization instrument |
| CN113738444A (en) * | 2021-09-18 | 2021-12-03 | 同济大学 | Tunnel is prevented and treated with double-barrelled gravel of filling and impress anti-thorn formula ball valve device |
| CN113738444B (en) * | 2021-09-18 | 2023-02-10 | 同济大学 | Tunnel is prevented and treated with double-barrelled gravel of filling and impress anti-thorn formula ball valve device |
| CN113914927A (en) * | 2021-10-29 | 2022-01-11 | 同济大学 | Combined film bag type gravel pasting filtering and water draining device for high-water-pressure tunnel |
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