CN109630193A - Subway Tunnel service channel excavates the administering method for water burst phenomenon occur - Google Patents
Subway Tunnel service channel excavates the administering method for water burst phenomenon occur Download PDFInfo
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- CN109630193A CN109630193A CN201910026615.4A CN201910026615A CN109630193A CN 109630193 A CN109630193 A CN 109630193A CN 201910026615 A CN201910026615 A CN 201910026615A CN 109630193 A CN109630193 A CN 109630193A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000007569 slipcasting Methods 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 7
- 239000002689 soil Substances 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000009412 basement excavation Methods 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 241000209094 Oryza Species 0.000 claims description 7
- 235000007164 Oryza sativa Nutrition 0.000 claims description 7
- 235000009566 rice Nutrition 0.000 claims description 7
- 238000004162 soil erosion Methods 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 abstract description 4
- 238000001764 infiltration Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 235000019353 potassium silicate Nutrition 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The administering method for water burst phenomenon occur is excavated the invention discloses a kind of Subway Tunnel service channel, comprising: one, leak drainage: in the top jet concrete layer of service channel；Drainage tube is set in the two sides of service channel and dewatering well, the end facing water of drainage tube are connected to the inside of service channel, the water outlet of drainage tube is connected to the inside of dewatering well；Two, service channel is filled: by the inside for excavating molding service channel and hole using sandbag pile；Three, section of jurisdiction supporting: main tunnel duct piece is supported in steel pipe inner supporting is arranged in the main tunnel at service channel both ends；Four, grouting and reinforcing slip casting in ground and tunnel: is carried out to the periphery soil body in the main tunnel of service channel and service channel both ends by the way of the sleeve valve barrel grouting of ground in ground；Main tunnel internal in service channel both ends carries out grouting behind shaft or drift lining reinforcing to main tunnel duct piece.The present invention can quickly and effectively complete infiltration water collision processing work, guarantee that shield smoothly receives.
Description
Technical field
The present invention relates to Subway Tunnel service channel excavation construction technology field more particularly to a kind of contact of Subway Tunnel are logical
Excavate the administering method for water burst phenomenon occur in road.
Background technique
At present to guarantee that Freezing Method for Cross-passage Construction section section of jurisdiction and contact excavation face are impermeable, mainly to utilize mixing pile machine distich
Network channel section reinforced, slip casting and polyurethane etc. are filled, New Austrian Tunneling Method construction or push bench process excavation construction, freezing are reinforced,
The technical measures such as precipitation guarantee the safety of construction, but in the construction process often because a variety of causes will lead to slip casting, precipitation etc.
Measure failure, so that risk is brought, without preferable processing method under the conditions of service channel long-time strand water burst.
Summary of the invention
For above-mentioned there are problem, the present invention is intended to provide there is water burst phenomenon in a kind of Subway Tunnel service channel excavation
Administering method can be completed quickly and effectively percolating water and block processing work, guarantee that shield smoothly receives.
The present invention realize above-mentioned purpose the technical solution adopted is that: it is existing that water burst occurs in a kind of Subway Tunnel service channel excavation
The administering method of elephant, the administering method include:
One, leak drains:
In the top jet concrete layer of service channel；
Drainage tube and dewatering well are set in the two sides of service channel, it is logical that the end facing water of the drainage tube is connected to the contact
The inside in road, the water outlet of the drainage tube are connected to the inside of the dewatering well；
Two, service channel is filled:
By the inside for excavating molding service channel and hole using sandbag pile；
Three, section of jurisdiction supporting:
Main tunnel duct piece is supported in steel pipe inner supporting is arranged in the main tunnel at service channel both ends；
Four, slip casting in ground and tunnel:
In ground to the periphery soil in the main tunnel of service channel and service channel both ends by the way of the sleeve valve barrel grouting of ground
Body carries out grouting and reinforcing；
Main tunnel internal in service channel both ends carries out grouting behind shaft or drift lining reinforcing to main tunnel duct piece.
In some embodiments, in service channel digging process, using setting advanced spy at the pump house of service channel
Water burst phenomenon is observed in hole, also, implements the administering method when there is water burst phenomenon.
In some embodiments, the end facing water of the drainage tube is enclosed with strainer.
In some embodiments, the drainage tube progress leak drainage is arranged in the first side of Yu Suoshu service channel,
Closure processing is carried out to second side of the service channel, first side and described second side are the excavation of the service channel
The left and right sides in face.
In some embodiments, the steel pipe inner supporting is rice font inner support, 15 meters of models of the service channel of adjusting the distance
The main tunnel duct piece of every ring in enclosing is arranged the rice font inner support and carries out section of jurisdiction support, each rice font inner support it is each
A steel pipe stabilizer blade is support on the inner surface of the main tunnel duct piece of same ring.
In some embodiments, the precipitation of the phased out drainage tube draws during the ground sleeve valve barrel grouting
Stream.
In some embodiments, when carrying out grouting behind shaft or drift lining reinforcing to the main tunnel duct piece, to the cross in same main tunnel
Section two sides symmetrically carry out slip casting.
In some embodiments, grouting pressure is less than or equal to 0.2Mpa.
In some embodiments, the administering method further include to main tunnel duct piece carry out section of jurisdiction convergence monitoring, and according to
Section of jurisdiction convergence monitoring situation is determined the position for the main tunnel duct piece of soil erosion occur, and then cooperates and infused using ground mini-valve tube
Slurry carries out grouting and reinforcing to the position.
In some embodiments, synchronous to implement the leak drainage, service channel filling, the section of jurisdiction supporting, institute
State slip casting in ground and tunnel.
A kind of Subway Tunnel service channel of the present invention excavates the method for the improvement of water burst phenomenon occur, excavates and protects in service channel
Comprehensive after barrier failure to be drained using leak, concrete measures such as slip casting, section of jurisdiction supporting etc. are answered in service channel filling, ground and tunnel
Anxious disposal method has blocked leakage water route chamber etc. well, can quickly handle, and further increases, and reduces the shadow to surface subsidence
It rings, quickly and effectively completes infiltration water collision and handle work, guarantee the safety of service channel and tunnel, save shield-tunneling construction work
Phase reduces the expense that percolating water causes subsequent processing.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 shows Subway Tunnel service channel according to an embodiment of the present invention and excavates the administering method for water burst phenomenon occur
The exemplary structure schematic diagram with water spot position.
The administering method for water burst phenomenon occur is excavated Fig. 2 shows Subway Tunnel service channel according to an embodiment of the present invention
Sandbag back-pressure range exemplary structure schematic diagram.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
The present invention is described in detail in the following with reference to the drawings and specific embodiments.
The present invention is applied to water burst phenomenon occur in Subway Tunnel service channel digging process, is drained, is got in touch with by leak
The concrete measures such as slip casting, section of jurisdiction supporting ensure tunnel and service channel safety in channel filling, ground and tunnel.
Existing service channel reinforcement technique may be because that various problems lead to the measures failure such as service channel reinforcing, the present invention
Subway Tunnel service channel excavate and the administering method of water burst phenomenon occur, long-time strand is gushed in service channel digging process
Under the conditions of water, specific processing method is provided, shield is smoothly appeared by taking various emergency measure to ensure.
To solve the water burst scene in existing service channel digging process, the embodiment of the invention provides a kind of Subway Tunnels
Service channel excavates the administering method for water burst phenomenon occur, which mainly includes following measures:
(1), leak drains:
In the top jet concrete layer of service channel；
Drainage tube is set in the two sides of service channel and dewatering well, the end facing water of drainage tube are connected to the interior of service channel
The water outlet in portion, drainage tube is connected to the inside of dewatering well；
(2), service channel is filled:
By the inside for excavating molding service channel and hole using sandbag pile；
(3), section of jurisdiction supporting:
Main tunnel duct piece is supported in steel pipe inner supporting is arranged in the main tunnel at service channel both ends；
(4), slip casting in ground and tunnel:
In ground to the periphery soil in the main tunnel of service channel and service channel both ends by the way of the sleeve valve barrel grouting of ground
Body carries out grouting and reinforcing；
Main tunnel internal in service channel both ends carries out grouting behind shaft or drift lining reinforcing to main tunnel duct piece.
Infiltration water collision processing work can quickly and effectively be completed using the administering method of above-described embodiment, guarantee shield
Smoothly receive.
Specifically, referring to Fig. 1 and Fig. 2, wherein it is logical that Fig. 1 shows Subway Tunnel contact according to an embodiment of the present invention
Road excavates the exemplary structure schematic diagram with water spot position for the administering method of water burst phenomenon occur, and Fig. 2 shows according to this hair
The Subway Tunnel service channel of bright embodiment excavates the exemplary knot for the sandbag back-pressure range of administering method of water burst phenomenon occur
Structure schematic diagram.
Before service channel excavation safeguard failure is embodied in service channel pump house excavation, further to verify precipitation
And water level conditions at pump house, advanced inspecting hole is set at pump house 11, about 2.4 meters of 111 depth of inspecting hole, discovery has clear water exudation, such as
Shown in Fig. 1, so as to judge that water burst phenomenon occurs in existing service channel.
When finding water burst phenomenon occur in existing service channel digging process, following emergency plan is taken:
1, issue water burst drains:
After the concrete layer 101 of the top jet 25cm thickness of service channel 10, emergency disposal, water flow is substantially achieved control
System only has a small amount of water to flow out, to reduce soil erosion, is further blocked to water flow, to right side flowing water in 11 two sides of pump house
It is blocked, left side takes an embedded φ 80mm steel pipe as drainage tube (not showing drainage tube in figure), by meeting for drainage tube
Water end (W.E.) wraps up double-deck 60 mesh filter screens and is simultaneously connected in service channel, drains to the water burst in service channel 10, ground into
One step increases dewatering well (not showing dewatering well in figure), so that the water outlet of drainage tube is connected in dewatering well, to reduce head
Pressure, wherein carrying out precipitation to underground structure using drainage tube and dewatering well is the prior art, is not gone to live in the household of one's in-laws on getting married herein.
2, sandbag fills the service channel excavated:
Then inside entire service channel and hole is managed by the way of sandbag pile at service channel and portal
Piece carries out back-pressure, as shown in Fig. 2, close to the high about 3m of 12 heap of sandbag at service channel.
3, section of jurisdiction supporting；
The main tunnel duct piece in the main tunnel 13 at 10 both ends of service channel is supported and back-pressure specifically leads to contact
The main tunnel duct piece of every ring near road 10 within the scope of about 15 meters forms rice font inner support using the steel pipe of 4 φ 100mm, prevents
Main tunnel duct piece further deforms.Wherein, each steel pipe stabilizer blade of each meter of font inner support is support on the main tunneltron of same ring
The inner surface of piece.
4, surface grout injection；
Ground sleeve valve barrel grouting is reinforced, and according to section of jurisdiction convergence monitoring situation, is existed outside the left line tunnel duct piece of preliminary judgement
Certain soil erosion calls 3 grouting equipments, to the main tunnel in two sides (such as left side tunnel by the way of the sleeve valve barrel grouting of ground then
Road 172-215 ring, right side tunnel 195-210 ring) the periphery soil body reinforced, phased out drainage tube drop during consolidation grouting
Water is until the wholly off precipitation of surface precipitation well.Surface grout injection drilling sum about 36, (partial hole is drilled into one to slip casting hole count about 24
Depthkeeping degree has slurries to emerge), grouting amount: 71.8 tons of cement, waterglass: 31.9 tons.
5, the slip casting of segment inside tunnel；
Grouting behind shaft or drift lining is carried out using main tunnel duct piece (such as left side tunnel 170-220 ring) of the slip casting in hole to water burst position to add
Gu enhancing the stability in tunnel itself to constrain segment deformation.The left and right sides in each main tunnel is symmetrically infused when slip casting
Slurry, grouting pressure are no more than 0.2MPa, and grouting parameter is adjusted according to monitoring situation.To the non-principal main tunnel duct piece in water burst side
Also slip casting (such as the main tunnel 170-212 ring in right side) in hole is carried out, grouting amount: 41.8 tons of cement, waterglass: 1.6 tons；Water burst side master
Tunnel duct piece grouting amount: 188 tons of cement, 17 tons of waterglass.
6, continue precipitation.
During slip casting, the main tunnel duct piece behind soil body is detected, includes surface subsidence and tunnel convergence prison
It surveys, increases section of jurisdiction convergence point in the main tunnel in water burst side (such as left side tunnel), increase monitoring and make an inspection tour frequency.Ground monitoring point is tired
Meter settling amount maximum of points D5-8 is -26.6mm (before the measuring point water burst cumulative settling amount: -25.3mm), and section of jurisdiction level is received in hole
Holding back a cumulant maximum value is -18mm, and convergence is basicly stable in surface subsidence and hole.Geology is used after completing above-mentioned measure
Two methods of radar method detection, earthquake effect method are to left threaded list road 160-195 ring, behind to the right line 107-202 endless tube piece soil body
It is detected.Detection result shows left and right line 170-220 endless tube piece behind abnormal disappearance.
Subway Tunnel service channel of the invention excavate occur water burst phenomenon administering method use to main tunnel duct piece into
Row section of jurisdiction convergence monitoring, and according to section of jurisdiction convergence monitoring situation, determine the position for the main tunnel duct piece of soil erosion occur, in turn
Cooperation carries out grouting and reinforcing to the position using ground sleeve valve barrel grouting.Also, it can synchronize and implement above-mentioned leak drainage, contact is led to
The safeguards such as slip casting in road filling, section of jurisdiction supporting, ground and tunnel.
A kind of Subway Tunnel service channel of the present invention excavates the method for the improvement of water burst phenomenon occur, excavates and protects in service channel
Comprehensive after barrier failure to be drained using leak, concrete measures such as slip casting, section of jurisdiction supporting etc. are answered in service channel filling, ground and tunnel
Anxious disposal method has blocked leakage water route chamber etc. well, can quickly handle, and further increases, and reduces the shadow to surface subsidence
It rings, quickly and effectively completes infiltration water collision and handle work, guarantee the safety of service channel and tunnel, save shield-tunneling construction work
Phase reduces the expense that percolating water causes subsequent processing.
It should be noted that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The bright revealed content of book is not intended to limit the invention enforceable limit so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach and obtain
In the range of capable of covering.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, technology according to the present invention are real
Matter any simple modification, equivalent change and modification to the above embodiments, still fall within the range of technical solution of the present invention
It is interior.
Claims (10)
1. a kind of Subway Tunnel service channel excavates the administering method for water burst phenomenon occur, which is characterized in that the administering method
Include:
One, leak drains:
In the top jet concrete layer of service channel；
Drainage tube is set in the two sides of service channel and dewatering well, the end facing water of the drainage tube are connected to the service channel
Inside, the water outlet of the drainage tube are connected to the inside of the dewatering well；
Two, service channel is filled:
By the inside for excavating molding service channel and hole using sandbag pile；
Three, section of jurisdiction supporting:
Main tunnel duct piece is supported in steel pipe inner supporting is arranged in the main tunnel at service channel both ends；
Four, slip casting in ground and tunnel:
In ground by the way of the sleeve valve barrel grouting of ground to the periphery soil body in the main tunnel of service channel and service channel both ends into
Row grouting and reinforcing；
Main tunnel internal in service channel both ends carries out grouting behind shaft or drift lining reinforcing to main tunnel duct piece.
2. Subway Tunnel service channel as described in claim 1 excavates the administering method for water burst phenomenon occur, it is characterised in that:
In service channel digging process, water burst phenomenon is observed using advanced inspecting hole is set at the pump house of service channel, also,
Occur implementing the administering method when water burst phenomenon.
3. Subway Tunnel service channel as described in claim 1 excavates the administering method for water burst phenomenon occur, it is characterised in that:
The end facing water of the drainage tube is enclosed with strainer.
4. Subway Tunnel service channel as described in claim 1 excavates the administering method for water burst phenomenon occur, it is characterised in that:
The drainage tube is set in the first side of the service channel and carries out the leak drainage, to second side of the service channel into
Row closure processing, first side and described second side are the left and right sides of the excavation face of the service channel.
5. Subway Tunnel service channel as described in claim 1 excavates the administering method for water burst phenomenon occur, it is characterised in that:
The steel pipe inner supporting is rice font inner support, the main tunnel duct piece setting of the every ring adjusted the distance within the scope of 15 meters of the service channel
The rice font inner support carries out section of jurisdiction support, and each steel pipe stabilizer blade of each rice font inner support is support on same ring master
The inner surface of tunnel duct piece.
6. Subway Tunnel service channel as described in claim 1 excavates the administering method for water burst phenomenon occur, it is characterised in that:
The precipitation drainage of the phased out drainage tube during ground sleeve valve barrel grouting.
7. Subway Tunnel service channel as described in claim 1 excavates the administering method for water burst phenomenon occur, it is characterised in that:
When carrying out grouting behind shaft or drift lining reinforcing to the main tunnel duct piece, slip casting is symmetrically carried out to the cross section two sides in same main tunnel.
8. Subway Tunnel service channel as claimed in claim 7 excavates the administering method for water burst phenomenon occur, it is characterised in that:
Grouting pressure is less than or equal to 0.2Mpa.
9. Subway Tunnel service channel as described in claim 1 excavates the administering method for water burst phenomenon occur, it is characterised in that:
The administering method further includes carrying out section of jurisdiction convergence monitoring to main tunnel duct piece, and according to section of jurisdiction convergence monitoring situation, determine
The position of the main tunnel duct piece of existing soil erosion, and then cooperate and grouting and reinforcing is carried out to the position using ground sleeve valve barrel grouting.
10. Subway Tunnel service channel as described in claim 1 excavates the administering method for water burst phenomenon occur, feature exists
In: slip casting in the synchronization implementation leak drainage, service channel filling, the section of jurisdiction supporting, the ground and tunnel.
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| CN201910026615.4A CN109630193A (en) | 2019-01-11 | 2019-01-11 | Subway Tunnel service channel excavates the administering method for water burst phenomenon occur |
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Cited By (4)
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| CN110925018A (en) * | 2019-12-02 | 2020-03-27 | 河南科技大学 | Pump room construction method and pump room construction dewatering system in tunnel connection channel |
| 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 |
| CN111946351A (en) * | 2020-07-13 | 2020-11-17 | 济南轨道交通集团有限公司 | Rapid excavation method for contact channel of hard rock stratum of rail transit |
| CN112228091A (en) * | 2020-12-14 | 2021-01-15 | 北京建工土木工程有限公司 | Bottom sealing method for mechanical construction vertical shaft in tunnel |
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| CN110925018A (en) * | 2019-12-02 | 2020-03-27 | 河南科技大学 | Pump room construction method and pump room construction dewatering system in tunnel connection channel |
| CN110925018B (en) * | 2019-12-02 | 2021-06-25 | 河南科技大学 | Pump room construction method and pump room construction dewatering system in tunnel connection channel |
| 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 |
| CN111946351A (en) * | 2020-07-13 | 2020-11-17 | 济南轨道交通集团有限公司 | Rapid excavation method for contact channel of hard rock stratum of rail transit |
| CN112228091A (en) * | 2020-12-14 | 2021-01-15 | 北京建工土木工程有限公司 | Bottom sealing method for mechanical construction vertical shaft in tunnel |
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