CN109403986A - The synchronous enlarging of the parallel heading of TBM tunneling construction is the construction method of double line tunnel - Google Patents
The synchronous enlarging of the parallel heading of TBM tunneling construction is the construction method of double line tunnel Download PDFInfo
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- CN109403986A CN109403986A CN201710700243.XA CN201710700243A CN109403986A CN 109403986 A CN109403986 A CN 109403986A CN 201710700243 A CN201710700243 A CN 201710700243A CN 109403986 A CN109403986 A CN 109403986A
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- parallel heading
- construction
- heading
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- double line
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0621—Shield advancing devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
Abstract
The synchronous enlarging of the parallel heading of TBM tunneling construction is the construction method of double line tunnel, to ensure double line tunnel and I threaded list road synchronous construction, and is put into effect simultaneously, realize effectively shorten tunnel total construction period, construction cost is greatly reduced.Include the following steps: parallel heading of constructing in advance using the progress full advance of minor diameter Open TBM；Parallel heading development end 800m or so is lagged, using I threaded list road of major diameter TBM full advance construction at 30~50m of left or right side of parallel heading, and the transverse passage-way between route extending direction interval construction connection parallel heading, I threaded list road；Parallel heading enlarging construction is carried out after lagging I threaded list road TBM development end about 1200m, i.e. small TBM is still in the case where the advance development parallel heading incessantly of front, start to synchronize the parallel heading constructed using drilling and blasting method at lag parallel heading development end about 2km and dig, forms double line tunnel.
Description
Technical field
The present invention relates to Tunnel Engineering, in particular to the synchronous enlarging of the parallel heading of a kind of Open TBM tunneling construction is
The construction method of double line tunnel.
Background technique
With the continuous improvement with rapid changepl. never-ending changes and improvements and mechanization of tunnelling degree of China's tunnel construction technology, TBM
A kind of advanced construction method of (rock tunnel(ling) machine) method as tunnel, in China's extra-long railway tunnel using increasing.
Geological conditions preferably grow up or Extra Long Tunnel Construction in, using Open TBM tunneling construction have it is environmental-friendly, quick, excellent
Matter, safety, it is economical the advantages that, especially super long tunnel general control all fronts duration, TBM driving be conducive to accelerate constructing tunnel into
Degree realizes that route opens operation as early as possible, preferably to play economic benefit and social benefit.
In recent years, as trunk railway of growing up constantly extends to western landform difficulty mountain area, deep metal ore deposit is shown in not repeatly
Fresh, because being limited by landform, service gallery setting condition is poor, and the tunnel duration is longer.To alleviate duration pressure and reducing construction wind
Danger, previous way are by double hole single line super long tunnels using built by separate periods mode, i.e., first quick-fried using boring in II threaded list diatom position
Method construction parallel heading takes into account tunnel ventilation, draining etc., and lead to using advanced parallel heading as the geology exploratory heading in I threaded list road
It crosses advanced parallel heading and increases I line tunnel excavation work surface, to accelerate I threaded list road drill bursting construction progress, to I line tunnel holing through
Afterwards, then by parallel heading drilling and blasting method is used to dig for II line or double line tunnel.
Existing construction method has the disadvantage that the parallel heading being arranged at (1) multiple line line position is quick-fried using traditional brill
Method construction, the more advanced TBM method mechanical excavation of construction speed is slow, causes the parallel heading perforation duration longer；(2) due to two
Threaded list road is relatively close apart, and every the transverse passage-way of the mutual connection of 400m left and right settings, extends again after I line tunnel holing through operation multiple
Threaded list road, bursting work are unfavorable to neighbouring existing I threaded list road operation security, or dig the opportunity of operation by the driving of I threaded list road
Restriction need to adjust to Window time carry out；(3) construction, full tunnel can be extended after the perforation of I line Tunnel Engineering because of Double line project
Road total construction period increases, and construction cost is high, and double line tunnel cannot put into effect in time, is unfavorable for creating economic benefit；(4) double holes
The tunnel of rescue evacuation each other, double line tunnel extend construction, conduct during operation is opened in I threaded list road during super long tunnel is runed
The operation in I threaded list road is taken precautions against natural calamities and Evacuation function limitation, is unfavorable for the security risk control during the operation of I threaded list road.
Summary of the invention
It is multiple line technical problem to be solved by the invention is to provide a kind of synchronous enlarging of the parallel heading of TBM tunneling construction
The construction method in tunnel to ensure double line tunnel and I threaded list road synchronous construction, and puts into effect simultaneously, and realization effectively shortens tunnel
Construction cost is greatly reduced in road total construction period.
The technical solution adopted by the present invention to solve the technical problems is as follows:
The synchronous enlarging of the parallel heading of TBM tunneling construction of the present invention is the construction method of double line tunnel, is included the following steps:
1, full advance is carried out using minor diameter Open TBM to construct in advance parallel heading；
2, parallel heading development end 800m or so is lagged, using big straight at 30~50m of left or right side of parallel heading
I threaded list road of diameter TBM full advance construction, and construct between connection parallel heading, I threaded list road along route extending direction interval
Transverse passage-way；
3, lag I threaded list road TBM development end about 1200m after carry out parallel heading enlarging construction, i.e., small TBM still front not
Discontinuously in the case where advance development parallel heading, lags and start at parallel heading development end about 2km using drilling and blasting method to having applied
The parallel heading of work, which synchronizes, to be digged, and double line tunnel is formed.
During the parallel heading tunneling construction, parallel heading rail mounted transport system is set in hole bottom；I line tunnel piercing is applied
I threaded list road rail mounted transport system is set in tunnel bottom between duration；Parallel heading rail mounted transport system enters I threaded list road from tunnel portal
Rail mounted transport system, and by entering parallel heading from I threaded list road away from the nearest transverse passage-way of parallel heading development end；Double line tunnel
Enlarging uses flexible transport system, directly passes in and out from double line tunnel hole and digs work surface.
The parallel heading driving section uses jet flow gallery ventilation, using I threaded list road as fresh wind intake adit, if
It sets ventilating system and digs the fresh wind of face feed to parallel heading development end, parallel heading；Waste air passes through parallel heading development end, puts down
Row base tunnel digs the parallel heading at face rear or double line tunnel excludes outside hole；Simultaneously parallel heading and parallel heading dig face it
Between setting heavy curtain control waste air direction.
The invention has the advantages that double line tunnel uses minor diameter Open TBM tunneling construction parallel heading first, fill
Distribution waves minor diameter TBM is at low cost, manufacturing time is short, drivage efficiency is high advantage to accelerate parallel heading advance development, can have
Effect reduces the parallel heading duration, and using advanced parallel heading as the geology exploratory heading of I threaded list road construction period, advanced white-out
The channel being lauched and vent passages can be effectively improved in-cavity construction operating environment, accelerate Tunnel Construction Schedule, be that I threaded list road is big
The safe construction of diameter TBM plays the role of escorting；Meanwhile for give full play to I threaded list road using continuous belt muck removal and
Having outside hole is led in the transport capacity more than needed that rail mounted transport system has, the setting of the tunneling construction piggybacking I threaded list road parallel heading TBM
Rail transportation system is digged section with the double line tunnel drilling and blasting method of rear follow-up and is formed the mixed transportation not being mutually exclusive using flexible transport
Operating system, and the construction ventilation system of setting " utilizing I threaded list road into fresh wind, parallel heading and double line tunnel blowdown wind "
System, conscientiously ensure parallel heading and double line tunnel enlarging construction safety, high efficiency synchronous promote, with effectively shorten major long tunnel construction
Total construction period reduces construction cost, and can realize that double line tunnel is put into effect as early as possible to play good economic benefit and society's effect
Benefit.
Detailed description of the invention
This specification includes following seven width attached drawing:
Fig. 1 is that the plane that the synchronous enlarging of parallel heading of TBM tunneling construction of the present invention is the construction method of double line tunnel is shown
It is intended to；
Fig. 2 is that the synchronous enlarging of parallel heading of TBM tunneling construction of the present invention is parallel conductive in the construction method of double line tunnel
The structure profile diagram in hole；
It is to put down in the construction method of double line tunnel that Fig. 3, which is synchronous extend of the parallel heading of TBM tunneling construction of the present invention with Fig. 4,
Row base tunnel cheats bottom rail and arranges structural map；
Fig. 5 is that the synchronous enlarging of parallel heading of TBM tunneling construction of the present invention is multiple line tunnel in the construction method of double line tunnel
Road step excavation and preliminary bracing apply process profile diagram；
Fig. 6 is that the synchronous enlarging of parallel heading of TBM tunneling construction of the present invention is multiple line tunnel in the construction method of double line tunnel
Road secondary lining applies process sectional schematic diagram；
Fig. 7 is that the synchronous enlarging of parallel heading of TBM tunneling construction of the present invention is ventage in the construction method of double line tunnel
System arrangement schematic diagram.
Component and corresponding label are shown in figure: parallel heading development end A, I threaded list road development end B, parallel heading dig
It is face C, I threaded list road 10, I threaded list road rail mounted transport system 11, belt muck removal system 12, lining trolley 13, parallel heading 20, parallel
Base tunnel rail mounted transport system 21, curtain 22, shotcrete layer 23, system anchor bolt 23a, the section of track 24, rail 24a, crossbeam 24b,
Supporting leg 25, longitudinally connected bar 26, hooked bar 27, inverted arch drainage channel 28, people's row steel plate 29, double line tunnel 30, flexible transport
Foot system 35, lower abutment wall preliminary bracing are locked in system 31, top rock mass 32, lower part rock mass 33, top preliminary bracing structure 34, top
Structure 36, inverted arch preliminary bracing structure 37, lower part lock foot system 38, transverse passage-way 40, rail access system 41, inverted arch and short abutment wall
50, inverted arch filled layer 51, arch wall position waterproof layer 52, secondary liner structure 53, lateral sulcus and cover board 54.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Referring to Fig.1, the synchronous enlarging of the parallel heading of TBM tunneling construction of the present invention is the construction method of double line tunnel, including
Following steps:
1, full advance is carried out using minor diameter Open TBM to construct in advance parallel heading 20；
2, parallel heading development end A about 800m is lagged, using big straight at 30~50m of left or right side of parallel heading 20
I threaded list road 10 of diameter TBM full advance construction, and construct along route extending direction interval and be connected to parallel heading 20, I threaded list road 10
Between transverse passage-way 40；
3, the enlarging construction of parallel heading 20 is carried out after I threaded list road TBM development end B about 1200m of lag, i.e., small TBM still exists
Front in the case where advance development parallel heading 20, lags incessantly and starts to use brill quick-fried at parallel heading development end A about 2km
Method synchronizes the parallel heading 20 constructed and digs, and forms double line tunnel 30.
After have after transverse passage-way 40 is connected at 3~4 between parallel heading 20 and I threaded list road 10, do not interfering I threaded list road 10 big
Under the conditions of the normal operation of TBM construction area, start to carry out using parallel heading 20 of the drilling and blasting method to minor diameter TBM tunneling construction
It digs.I.e. double line tunnel 30 dig should the big TBM Rear impact in I threaded list road 10 and lining trolley 13 put into normal use it
After start, to ensure that the big TBM in I threaded list road 10 smoothly orderly driving and applies lining cutting in time.Meanwhile putting forth effort to solve parallel heading
The 20 small TBM tunneling constructions in front and enlarging 30 synchronization job of double line tunnel of rear drilling and blasting method influence each other and interference problem, it is special
It is not interfering with each other in construction transport, the construction organizations problem such as construction ventilation and influences, it is ensured that with parallel heading TBM driving
It synchronizes and carries out the smooth, quickly and synchronous construction to alleviate duration of a project pressure opens double line tunnel in advance of enlarging double line tunnel
Operation.
Referring to Fig. 2, parallel heading 20 is located at I threaded list road 30~50m of left or right side, the middle line of parallel heading with need to expand
The 30 middle line line position of double line tunnel built coincides, for the advantage for playing the advanced speedy drivage of open type minor diameter TBM, parallel heading
20 cross-section Internal peripheries are except Keng Di transportation system lays, rail travel vehicle and personnel lead to during need to meeting TBM tunneling construction
It goes, the laying of pipeline, cheat outside the requirement of bottom structure, the control of TBM circle outline excavation is excavated within range in double line tunnel 30,
Its digging diameter is generally 5~6m, avoids the occurrence of that TBM diameter is excessive to be caused to backbreak.Parallel heading 20 is dug using tunneling boring rock
Into machine (TBM) excavate, loopful use bolt-spary supports structure, bolt-spary supports structure by shotcrete layer 23, steel mesh, steelframe and
System anchor bolt 23a is constituted, and shotcrete layer 23 is attached on country rock, and steel mesh and steelframe are embedded in shotcrete layer 23
Interior, system anchor bolt 23a is laid along country rock in monosymmetric ratchet type, outer end and steelframe anchor connection.It cheats bottom and rail is set
Transportation system 21, the channel passed in and out as parallel heading construction period haulage vehicle and personnel uses, under rail mounted transport system 21
Drainage channel of the inverted arch drainage channel 28 of side as construction period.
Referring to Fig.1, during 20 tunneling construction of parallel heading, parallel heading rail mounted transport system 21 is set in hole bottom.I threaded list
I threaded list road rail mounted transport system 11 is set in tunnel bottom during 10 tunneling construction of road.Parallel heading rail mounted transport system 21 is from tunnel
Hole enters I threaded list road rail mounted transport system 11, and by away from parallel heading development end A nearest transverse passage-way 40 from I threaded list road
10 enter parallel heading 20, as the driving of parallel heading 20 constantly promotes forward, parallel heading 20 and I threaded list road rail travel
Rail access system 41 between system 11 is accordingly dynamically adjusted to newly opening in transverse passage-way 40 away from work surface is nearest.Multiple line tunnel
The enlarging of road 30 uses flexible transport system 31, directly passes in and out from 30 hole of double line tunnel and digs work surface, using wheeled driving machine
Tool equipment, which frees in and out, carries out transport and operation inside and outside hole.
Referring to 3 and Fig. 4, the parallel heading rail mounted transport system 21 is laterally equidistantly to be fixedly installed four rail thereon
The section of track 24 of 24a forms four rails, three line transportation route, can meet the passage of three transportation routes of construction period, realizes construction fortune
Movement Capabilities maximize.H profile steel crossbeam 24b is set below rail 24a, and the both ends crossbeam 24b are set to parallel heading 20 and cheat bottom injection
In concrete layer 23, and crossbeam 24b is positioned by hooked bar 27.Vertical I-shaped steel leg is set immediately below rail 24a
25 hold up crossbeam 24b, and supporting leg 25 is embedded in shotcrete layer 23 and is supported on round excavation face basement rock.Each supporting leg 25 is in route
It is connected to form one on longitudinal direction using in the longitudinally connected bar 26 of X-type cross, to ensure the stability of rail row transport system.This
Outside, it is laid with people's row steel plate 29, between two rail of centre on the crossbeam 24b of section of track face in order to which operating personnel is free on section of track face
Walking.
Referring to figure 5 and figure 6,20 Enlargement excavation of parallel heading is the circle in the parallel heading 20 of minor diameter TBM tunneling construction
On the basis of shape shotcrete lining cutting, using 20 circular cross section of parallel heading as the advanced middle base tunnel of the enlarging construction of double line tunnel 30.It is right
It is once digged in II, III level country rock using arch wall, for IV, V grades of country rocks, double line tunnel 30 is digged using upper and lower branch and applied
Work, the specific steps are as follows:
1, in first Enlargement excavation circle base tunnel top rock mass 32, apply 30 arch of double line tunnel, upper abutment wall position in time
Top preliminary bracing structure 34 and top lock foot system 35；
2,3~5m of lag digs lower part rock mass 33, applies the lower abutment wall under the new excavation face in 30 lower part of double line tunnel in time
Foot system 38 is locked in preliminary bracing structure 36, inverted arch preliminary bracing structure 37 and lower part；
3, it successively constructs inverted arch and short abutment wall 50, inverted arch filled layer 51, and after being laid with tunnel arch wall position waterproof layer 52,
Arch wall secondary liner structure 53 and lateral sulcus and cover board 54 are applied in time.
Referring to Fig. 7, the parallel heading 20 tunnels section and uses jet flow gallery ventilation, using I threaded list road 10 as fresh
Wind intake adit is arranged ventilating system from hole extroversion parallel heading development end A, parallel heading and digs the fresh wind of face C feed.Waste air
The parallel heading 20 at the face rear C is digged by parallel heading development end A, parallel heading or double line tunnel 30 excludes to avoid outside hole
Parallel heading waste air flows into double line tunnel and digs face operating area, realizes parallel heading, double line tunnel digs face synchronization job
Construction ventilation do not interfere with each other, while parallel heading 20 and parallel heading dig between the C of face be arranged heavy curtain 22 control waste air side
To.
The synchronous enlarging of parallel heading of the TBM tunneling construction of the present invention described above that only explains through diagrams is double line tunnel
Some principles of construction method are not intended to for the present invention being confined in shown and described specific structure and the scope of application, therefore
All all corresponding modifications that may be utilized and equivalent, belong to the applied the scope of the patents of the present invention.
Claims (7)
- The synchronous enlarging of the parallel heading of 1.TBM tunneling construction is the construction method of double line tunnel, is included the following steps:1. constructing parallel heading (20) in advance using the full advance of minor diameter Open TBM；2. parallel heading development end (A) 800m or so is lagged, using big at 30~50m of left or right side of parallel heading (20) I threaded list road (10) of diameter TBM full advance construction, and construct along route extending direction interval and be connected to parallel heading (20), I line Transverse passage-way (40) between tunnel (10)；3. carrying out the enlarging construction of parallel heading (20) after lagging I threaded list road TBM development end (B) about 1200m, i.e., small TBM still exists Incessantly in the case where advance development parallel heading (20), lag parallel heading development end (A) 2km or so starts to use in front Drilling and blasting method synchronizes the parallel heading (20) constructed and digs, and is formed double line tunnel (30).
- 2. the synchronous enlarging of the parallel heading of TBM tunneling construction as described in claim 1 is the construction method of double line tunnel, special Sign is: 3. the step is on the basis of the round shotcrete lining cutting of the parallel heading (20) of minor diameter TBM tunneling construction, using flat Advanced middle base tunnel of row base tunnel (20) circular cross section as double line tunnel (30) enlarging construction.
- 3. the synchronous enlarging of the parallel heading of TBM tunneling construction as claimed in claim 2 is the construction method of double line tunnel, special Sign is: for IV, V grades of country rocks, double line tunnel (30) uses upper and lower branch's Enlargement excavation, the specific steps are as follows:1. the top rock mass (32) of base tunnel, applies double line tunnel (30) arch, upper abutment wall position in time in first Enlargement excavation circle Top preliminary bracing structure (34) and top lock foot system (35)；2. 3~5m of lag digs lower part rock mass (33), the lower abutment wall under the new excavation face in double line tunnel (30) lower part is applied in time Preliminary bracing structure (36), inverted arch preliminary bracing structure (37) and lower part lock foot system (38)；3. successively construct inverted arch and short abutment wall (50), inverted arch filled layer (51), and it is being laid with tunnel arch wall position waterproof layer (52) Afterwards, arch wall secondary liner structure (53) and lateral sulcus and cover board (54) are applied in time.
- 4. the synchronous enlarging of the parallel heading of TBM tunneling construction as described in claim 1 is the construction method of double line tunnel, special Sign is: during parallel heading (20) tunneling construction, in hole bottom setting parallel heading rail mounted transport system (21)；I threaded list road (10) I threaded list road rail mounted transport system (11) is set in tunnel bottom during tunneling construction；Parallel heading rail mounted transport system (21) from Tunnel portal enters I threaded list road rail mounted transport system (11), and passes through the transverse passage-way (40) nearest away from parallel heading development end (A) Enter parallel heading (20) from I threaded list road 10；Double line tunnel (30) enlarging uses flexible transport system (31), from double line tunnel (30) hole directly passes in and out and digs work surface.
- 5. the synchronous enlarging of the parallel heading of TBM tunneling construction as described in claim 1 is the construction method of double line tunnel, special Sign is: the parallel heading (20) uses and is made of shotcrete layer (23), steel mesh, steelframe and system anchor bolt (23a) Bolt-spary supports structure, shotcrete layer (23) are attached on country rock, and steel mesh and steelframe are embedded in shotcrete layer (23) Interior, system anchor bolt (23a) is laid along country rock in monosymmetric ratchet type, outer end and steelframe anchor connection.
- 6. the synchronous enlarging of the parallel heading of TBM tunneling construction as claimed in claim 5 is the construction method of double line tunnel, special Sign is: the parallel heading rail mounted transport system (21) is the section of track for being laterally equidistantly fixedly installed four rail (24a) thereon (24), H profile steel crossbeam (24b) is set below rail (24a), the both ends crossbeam (24b) are set to the bottom injection of parallel heading (20) hole In concrete layer (23), and crossbeam (24b) is positioned by hooked bar (27)；Vertical work is set immediately below rail (24a) Word steel leg (25) holds up crossbeam (24b), and supporting leg (25) insertion shotcrete layer (23) is simultaneously supported in round excavation face basement rock On；Each supporting leg (25) is connected to form one on route longitudinal direction using in the longitudinally connected bar (26) of X-type cross.
- 7. the synchronous enlarging of the parallel heading of TBM tunneling construction as described in claim 1 is the construction method of double line tunnel, special Sign is: parallel heading (20) the driving section uses jet flow gallery ventilation, logical using I threaded list road (10) as fresh wind air feed Road is arranged ventilating system to parallel heading development end (A), parallel heading and digs the fresh wind of face (C) feed；Waste air passes through parallel conductive Hole development end (A), parallel heading dig the parallel heading (20) at the rear face (C) or double line tunnel (30) excludes outside hole；Exist simultaneously Parallel heading (20) and parallel heading, which dig, is arranged heavy curtain (22) control waste air direction between face (C).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110410095A (en) * | 2019-08-16 | 2019-11-05 | 中铁隧道局集团有限公司 | TBM tunnel construction material dregs transportation method |
| CN111206933A (en) * | 2020-01-20 | 2020-05-29 | 西南交通大学 | Tunnel construction method for traversing karst water-rich section |
| CN112145214A (en) * | 2020-09-09 | 2020-12-29 | 中铁三局集团有限公司 | Energy-saving ventilation method for newly-built tunnel construction based on existing railway tunnel and inclined shaft |
| CN112796770A (en) * | 2020-12-30 | 2021-05-14 | 华能西藏雅鲁藏布江水电开发投资有限公司 | Tunnel forming method |
| CN113338954A (en) * | 2021-07-16 | 2021-09-03 | 中天建设集团有限公司 | Small-section double-line mining method tunnel construction method |
| CN113863939A (en) * | 2021-09-27 | 2021-12-31 | 中铁二院工程集团有限责任公司 | Rapid construction method for adopting TBM (tunnel boring machine) to lead double-hole cross tunneling in complex stratum |
| CN114812355A (en) * | 2022-05-06 | 2022-07-29 | 江苏清源管道技术有限公司 | Parallel section construction process for oil pipeline |
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| CN110410095B (en) * | 2019-08-16 | 2021-10-08 | 中铁隧道局集团有限公司 | Material residue soil transportation method for tunnel construction of Tunnel Boring Machine (TBM) |
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| CN113338954A (en) * | 2021-07-16 | 2021-09-03 | 中天建设集团有限公司 | Small-section double-line mining method tunnel construction method |
| CN113338954B (en) * | 2021-07-16 | 2024-04-12 | 中天建设集团有限公司 | Tunnel construction method by small-section double-line mining method |
| CN113863939A (en) * | 2021-09-27 | 2021-12-31 | 中铁二院工程集团有限责任公司 | Rapid construction method for adopting TBM (tunnel boring machine) to lead double-hole cross tunneling in complex stratum |
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| CN114812355B (en) * | 2022-05-06 | 2024-02-09 | 江苏清源管道技术有限公司 | Parallel section construction process of oil pipeline |
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