CN109826654A - Tunnel ventilation well supporting construction and its construction method - Google Patents
Tunnel ventilation well supporting construction and its construction method Download PDFInfo
- Publication number
- CN109826654A CN109826654A CN201910184746.5A CN201910184746A CN109826654A CN 109826654 A CN109826654 A CN 109826654A CN 201910184746 A CN201910184746 A CN 201910184746A CN 109826654 A CN109826654 A CN 109826654A
- Authority
- CN
- China
- Prior art keywords
- section
- well bore
- well
- wall
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
Tunnel ventilation well supporting construction and its construction method of the present invention, belong to Tunnel Engineering field, it is therefore an objective to save ventilation shaft supporting process, accelerate speed of shaft sinking, improve safety.Ventilation shaft supporting construction includes ventilation shaft well head section, shaft bottom section and well bore section；It is close to be provided with circumferential closed well bore lining cutting layer on the inner wall of well bore section, well bore lining cutting layer builds concrete structure using mould, and is made of the single shell lining structure of well bore section well bore lining cutting layer.The present invention, using single shell lining structure, structure is simplified, and has saved working procedure, and the construction period is greatly saved；It is carried out simultaneously using mould building structure at well, mechanization degree is high, and working security is high；Single shell lining structure plays the time advance of supporting to country rock, improves the safety of ventilation shaft itself and construction.Its construction method, Completed advance rate is fast, working face safety.
Description
Technical field
The invention belongs to tunnel ventilation field, particularly tunnel ventilation well supporting construction and its construction method.
Background technique
Ventilation shaft is one of tunnel ventilation facility.It is super super long tunnel " nostril ", by ventilation shaft, by tunnel
Ground is discharged in interior foul atmosphere, while ground fresh air is sent into tunnel, and air is pure and fresh in guarantee tunnel.As China is handed over
Logical net constantly extends to mountain area, large quantities of long tunnels and Super Long Tunnel occurs, this kind of tunnel usually require setting ventilation shaft with
Solve the problems, such as operation ventilation.Vertical shaft has many advantages, such as that length is short, windage is small relative to other well type.But Construction of Silo is multiple
It is miscellaneous, the main composite lining formed using combined bolting and shotcrete after driving or Cheng Jinghou artesian well bottom form concrete or armored concrete
Structure, construction are bored with positive well based on quick-fried driving and pick block uniline operation.Which has the following drawbacks:
Firstly, composite lining supporting process is more, speed of shaft sinking is slow；
Secondly, uniline operation mode, mechanization degree is low, and safety is poor.
Summary of the invention
The object of the present invention is to provide a kind of tunnel ventilation well supporting construction and its construction methods, solve conventional composite formula lining
It is complicated to build construction, the slow problem of speed of shaft sinking accelerates speed of shaft sinking to save ventilation shaft supporting process, improves safety.
The technical solution adopted by the present invention is that: tunnel ventilation well supporting construction, ventilation shaft are connected to corresponding tunnel main shaft
One end is shaft bottom end, the other end is uphole end；Along ventilation shaft longitudinal direction, ventilation shaft includes the well head section and well adjacent with uphole end
The adjacent shaft bottom section in bottom end and the well bore section between well head section and shaft bottom section；The inner wall of the well bore section is in rough
Rough surface；It is close to be provided with circumferential closed well bore lining cutting layer on the inner wall of the well bore section, the well bore lining cutting layer uses mould
Concrete structure is built, and is made of the single shell lining structure of the well bore section the well bore lining cutting layer.
Further, the well head section is provided with circumferential closed fore shaft circle, and the fore shaft circle is that mould builds armored concrete
Structure, and it is made of the fore shaft circle single shell lining structure of the well head section.
Further, the inner wall for being close to the shaft bottom section is provided with circumferential closed shaft bottom lining cutting layer, the shaft bottom lining cutting
Layer builds reinforced concrete structure using mould, and the single shell lining structure of the shaft bottom section is made of the shaft bottom lining cutting layer.
Further, the ventilation shaft is vertical shaft.
Further, it along the radial direction of ventilation shaft, is provided in the outer wall of the well bore lining cutting layer and radially outwardly protrudes
Wellbore wall seat, the well bore groove being radially recessed outward, the wellbore wall seat are provided on the inner wall of the well bore section
It is plugged in the well bore groove.
Further, the wellbore wall seat is reinforced concrete structure；The wellbore wall seat include bottom wall, side wall and tiltedly
Wall；Perpendicular to the inner wall of well bore section, described skew wall one end is connected the bottom wall with side wall, and the other end is tilted towards well head extreme direction
Extend to the outer wall of well bore lining cutting layer.
The construction method of above-mentioned tunnel ventilation well supporting construction, longitudinal along ventilation shaft are pressed from well head section to shaft bottom section direction
Tunnel section and carry out section construction, the driving section includes well head section, well bore section and shaft bottom section, and the well bore section from well head section to
Shaft bottom section direction is divided into several sections of well bore driving sections；When construction, wait tunnel Duan Mo build to be formed build wall 1/3 up to initial set after,
The construction for starting next driving section is so repeated up to shaft bottom section construction and finishes.
Further, it suspends integral mold plate in midair, will be tunneled on the empty slag to be formed below integral mold plate in corresponding driving section, this is whole
Formed between body template and the borehole wall of corresponding driving section and pour mouth and pour cavity towards uphole end, to pour poured in cavity it is mixed
Solidifying soil.
Further, well bore groove at one is at least distributed on the borehole wall of each well bore driving section of the well bore section.
Further, between the construction joint of the adjacent well bore lining cutting layer of well bore section, between well bore lining cutting layer and fore shaft circle
And circumferential closed sealing rod is set between well bore lining cutting layer and the construction joint of shaft bottom lining cutting layer.
The beneficial effects of the present invention are: tunnel ventilation well supporting construction of the invention, firstly, using single shell lining structure,
Structure is simplified, and has saved working procedure, and the construction period is greatly saved；It is carried out simultaneously using mould building structure at well, machine
Tool degree is high, and working security is high.Second, single shell lining structure plays the time advance of supporting to country rock, ventilation is improved
The safety of well itself and construction.Third, whole supporting uses mould building structure, avoid raising ash, small pollution of the environment.Its
Four, play the role of support to liner structure by the rough rough surface of the inner wall of well bore section and it is avoided to slide, it is especially sharp
In the safety for guaranteeing Construction of Silo, and structure is simple, cheap, and can be by tunneling process self-assembling formation, construction is simple
It is convenient.Its construction method, working face safety, Completed advance rate are fast, and moon Cheng Jingneng reaches 65-85 meters.
Detailed description of the invention
Fig. 1 is sectional view of the present invention；
Fig. 2 is partial enlarged view at the A of Fig. 1；
Fig. 3 is present invention construction schematic diagram.
In figure, well head section 1, fore shaft circle 11, well bore section 2, well bore lining cutting layer 21, wellbore wall seat 22, bottom wall 221, side wall
222, skew wall 223, well bore groove 23, shaft bottom section 3, shaft bottom lining cutting layer 31, integral mold plate 4, pour cavity 5, empty quarrel 6.
Specific embodiment
It is as follows that the present invention is described further with reference to the accompanying drawings and examples:
Tunnel ventilation well supporting construction, as shown in Figure 1, one end that ventilation shaft and corresponding tunnel main shaft are connected to be shaft bottom end,
The other end is uphole end；Along ventilation shaft longitudinal direction, ventilation shaft includes the well head section 1 adjacent with uphole end, the well adjacent with shaft bottom end
Bottom section 3 and the well bore section 2 between well head section 1 and shaft bottom section 3；The inner wall of the well bore section 2 is in rough rough surface；
It is close to be provided with circumferential closed well bore lining cutting layer 21 on the inner wall of the well bore section 2, the well bore lining cutting layer 21 is built using mould
Concrete structure, and it is made of the well bore lining cutting layer 21 the single shell lining structure of the well bore section 2.
Tunnel ventilation well supporting construction of the invention, the inner wall by well bore section 2 are in rough rough surface, well bore lining
Course 21 is to be close to the mould of the inner wall of well bore section 2 to build concrete structure, and is single shell lining structure.Firstly, make with it is traditional compound
Formula liner structure is compared, and without operations such as combined bolting and shotcretes, has saved working procedure, the construction period is greatly saved.Second, with biography
The composite lining structure of system is compared, and structure is simplified, and cost is reduced.Third, the time for playing supporting to country rock is big
It is big to shift to an earlier date, improve the safety of ventilation shaft itself and construction.Four, the inner wall of well bore section 2 is in rough rough surface,
The concrete of liner structure is mutually embedded in rough inner wall when mould is built, when segmentation mould is built, to the upper section lining that mould is built
Block structure can play the role of support and its is avoided to slide, and be especially beneficial the safety for guaranteeing Construction of Silo.Fifth, well bore section 2
The uneven structure of inner wall, structure is simple, cheap, and can be by tunneling process self-assembling formation, and construction is simple is convenient.
Preferably, the well head section 1 is provided with circumferential closed fore shaft circle 11, and the fore shaft circle 11 is that mould builds reinforced concrete
Soil structure, and it is made of the fore shaft circle 11 the single shell lining structure of the well head section 1.
Preferably, the inner wall for being close to the shaft bottom section 3 is provided with circumferential closed shaft bottom lining cutting layer 31, the shaft bottom lining cutting
Layer 31 builds reinforced concrete structure using mould, and the single shell lining structure of the shaft bottom section 3 is made of the shaft bottom lining cutting layer 31.
The structure is readily applicable to inclined shaft, parallel pilot tunnel and vertical shaft etc., and advantage in the shaft is the most obvious.
In order to further increase stability of the well bore lining cutting layer 21 in conjunction with the inner wall of well bore section 2, it is preferred that such as Fig. 2 institute
Show, along the radial direction of ventilation shaft, the outer wall of the well bore lining cutting layer 21 be provided with the wellbore wall seat 22 radially outwardly protruded,
The well bore groove 23 being radially recessed outward is provided on the inner wall of the well bore section 2, the wellbore wall seat 22 is plugged in
In the well bore groove 23.
It is embedded in well bore groove 23 by wellbore wall seat 22, so that well bore lining cutting layer 21, which is firmly grabbed, invests well bore lining cutting layer 21
Outer wall, further improve the stability of well bore lining cutting layer 21, avoid well bore lining cutting layer 21 and vertically slide.
For the ease of pouring, it is preferred that the wellbore wall seat 22 is reinforced concrete structure；The wellbore wall seat 22 includes
Bottom wall 221, side wall 222 and skew wall 223；Inner wall of the bottom wall 221 perpendicular to well bore section 2, described 223 one end of skew wall and side wall
222 are connected, and the other end is tilted towards the outer wall that well head extreme direction extends to well bore lining cutting layer 21.
The setting of the skew wall 223 enables concrete to be flowed into well bore groove 23 very well, in conjunction with setting for bottom wall 221
Set, to flow into groove 23 in concrete play position-limiting action, wellbore wall seat 22 is formed well, and with well bore groove
23 are fused together.
The construction method of above-mentioned tunnel ventilation well supporting construction, along the longitudinal from well head section 1 to shaft bottom 3 directions of section of ventilation shaft
Section construction is carried out by driving section, the driving section includes well head section 1, well bore section 2 and shaft bottom section 3, and the well bore section 2 is by well
Mouth section 1 is divided into several sections of well bores driving sections to shaft bottom 3 directions of section；When construction, top driving section is tunneled first, section to be tunneled
Mould build to be formed build wall 1/3 up to initial set after, start it is next driving section driving, be so repeated up to shaft bottom section 3 construct
It finishes.Specifically, as shown in figure 3, suspention integral mold plate 4, tunnels the void to be formed in corresponding driving section for 4 lower section of integral mold plate and is cut
It on 6, is formed between the integral mold plate 4 and the borehole wall of corresponding driving section and pours mouth and pour cavity 5 towards uphole end, to pouring chamber
Casting concrete in body 5.
When Specific construction, firstly, open cut well head section 1, suspends integral mold plate 4 in midair and by 4 lower section of integral mold plate in well head section 1
In useless quarrel, pouring reinforcement concrete forms and latches circle 11, after the 1/3 of lock 11 height of circle reach initial set, starts to go out in parallel
Quarrel, and continues next driving section, that is, 2 topmost of well bore section well bore driving section driving, the well bore to topmost tunnels
Section driving in place, by the useless quarrel of 4 lower section of integral mold plate to well bore driving section, is tunneling the borehole wall and integral mold plate 4 formed
Between formed and pour cavity 5, well bore lining cutting layer 21 is formed to concrete perfusion is poured in cavity 5, equally to well bore lining cutting layer 21
After the 1/3 of height reaches initial set, start muck removal, and continue the construction of next driving section, until section 3 construction in shaft bottom finishes.For
Well head section 1, the above-mentioned lock circle 11 built wall and refer to reinforced concrete structure；For well bore section 2, above-mentioned wall of building refers to concrete structure
Well bore lining cutting layer 21；For shaft bottom section 3, the above-mentioned shaft bottom lining cutting layer 31 built wall and refer to concrete structure.For example, the height of integral mold plate 4
Degree is 4 meters, then corresponding build after wall reaches 1 meter high initial set, can continue postorder construction.
The construction method of ventilation shaft supporting construction disclosed by the invention, using from well head section 1 to shaft bottom section 3 directions, that is, supreme
Form of construction work under and can guarantee the safety of construction.And by section construction, i.e., every one section of driving just pours one section, makes
Just ventilation shaft supporting is finished after the completion of must tunneling, has saved working procedure, shortened construction period, and in time to driving section into
Row supporting ensure that the safety of construction and ventilation shaft self structure.Due to tunneling the inner wall bumps of the ventilation shaft formed not
It is flat, mould can be made to build the concrete to be formed and be firmly attached to its surface, after build wall 1/3 up to arrives initial set, building wall just can jail
Jail is supported in the inner wall of ventilation shaft without sliding.Therefore when build wall 1/3 up to initial set after, can muck removal, carry out next driving
The construction of section.Due to build wall 1/3 up to initial set after, just start it is next driving section driving so that build wall process part with
It is parallel to tunnel process, more conducively raising Completed advance rate.Due to the useless quarrel not muck removal for the driving section just constructed, i.e. the driving section
Driving process is not yet completed, and is just started lower section integral mold plate 4 and is poured, and is included in driving process so that building wall process.Just
It is to be included in driving process due to building wall process, and there have part to build wall process to be parallel with driving, so that ventilation shaft supporting construction
Immediately following development end, working face safety, Completed advance rate are fast, and moon Cheng Jingneng reaches 65-85 meters.And entire work progress is only by uphole end
One of subjob completion is carried out to shaft bottom end, without being acted on again from shaft bottom end to uphole end, avoids overhead pendant object etc.
Risk also as save process and construction period, meanwhile, the spray anchor process of composite lining is avoided, whole process uses cast-in-place coagulation
Soil structure, no rebound, work progress not will cause air pollution.And the thickness of branch sheath is reduced, and is not only conducive to save
Material also reduces the influence to ventilation shaft diameter.
Stability of the wall in conjunction with the borehole wall is built in order to further increase each driving section, it is preferred that the well bore section 2
Well bore groove 23 at one is at least distributed on the borehole wall of each well bore driving section.
In order to play waterproof action, it is preferred that between the construction joint of the adjacent well bore lining cutting layer 21 of well bore section 2, well bore
Circumferential closing is set between lining cutting layer 21 and fore shaft circle 11 and between well bore lining cutting layer 21 and the construction joint of shaft bottom lining cutting layer 31
Sealing rod.
Claims (10)
1. tunnel ventilation well supporting construction, ventilation shaft with one end that corresponding tunnel main shaft is connected to is shaft bottom end, the other end is well head
End；Along ventilation shaft longitudinal direction, ventilation shaft includes the well head section (1) adjacent with uphole end, the shaft bottom section (3) adjacent with shaft bottom end and position
Well bore section (2) between well head section (1) and shaft bottom section (3)；It is characterized by: the inner wall of the well bore section (2) in it is concave-convex not
Flat rough surface；It is close to be provided with circumferential closed well bore lining cutting layer (21) on the inner wall of the well bore section (2), the well bore lining
Course (21) builds concrete structure using mould, and the single shell lining structure of the well bore section (2) is made of the well bore lining cutting layer (21).
2. tunnel ventilation well supporting construction as described in claim 1, it is characterised in that: the well head section (1) is provided with circumferential direction
Closed fore shaft circle (11), the fore shaft circle (11) are that mould builds reinforced concrete structure, and constitutes institute by the fore shaft circle (11)
State the single shell lining structure of well head section (1).
3. tunnel ventilation well supporting construction as claimed in claim 1 or 2, it is characterised in that: be close to the interior of the shaft bottom section (3)
Wall is provided with circumferential closed shaft bottom lining cutting layer (31), and the shaft bottom lining cutting layer (31) builds reinforced concrete structure using mould, and
The single shell lining structure of the shaft bottom section (3) is made of the shaft bottom lining cutting layer (31).
4. the tunnel ventilation well supporting construction as described in claim 1-3 any one claim, it is characterised in that: described logical
Ventilating shaft is vertical shaft.
5. tunnel ventilation well supporting construction as claimed in claim 4, it is characterised in that: along the radial direction of ventilation shaft, in the well
The outer wall of body lining cutting layer (21) is provided with the wellbore wall seat (22) radially outwardly protruded, in the inner wall of the well bore section (2)
On be provided with the well bore groove (23) being radially recessed outward, the wellbore wall seat (22) is plugged in the well bore groove (23)
It is interior.
6. tunnel ventilation well supporting construction as claimed in claim 5, it is characterised in that: the wellbore wall seat (22) is mixed for reinforcing bar
Xtah Crude Clay structure；The wellbore wall seat (22) includes bottom wall (221), side wall (222) and skew wall (223)；The bottom wall (221) is vertical
Inner wall in well bore section (2), described skew wall (223) one end are connected with side wall (222), and the other end is tilted towards well head extreme direction and prolongs
Extend to the outer wall of well bore lining cutting layer (21).
7. the construction method of the tunnel ventilation well supporting construction as described in claim 1-6 any one claim, feature
Be: longitudinal along ventilation shaft carries out section construction, the driving section by driving section from well head section (1) to shaft bottom section (3) direction
Including well head section (1), well bore section (2) and shaft bottom section (3), and the well bore section (2) from well head section (1) to shaft bottom section (3) direction
It is divided into several sections of well bore driving sections；When construction, wait tunnel Duan Mo build to be formed build wall 1/3 up to initial set after, start next pick
Into the construction of section, so it is repeated up to shaft bottom section (3) construction and finishes.
8. the construction method of tunnel ventilation well supporting construction as claimed in claim 7, it is characterised in that: suspention integral mold plate
(4), it will be excavated on the empty quarrel (6) to be formed below integral mold plate (4) in corresponding excavation section, which excavates with corresponding
It is formed between the borehole wall of section and pours mouth and pour cavity (5) towards uphole end, to pouring casting concrete in cavity.
9. the construction method of tunnel ventilation well supporting construction as claimed in claim 7 or 8, it is characterised in that: the well bore section
(2) well bore groove (23) at one are at least distributed on the borehole wall of each well bore driving section.
10. the construction method of tunnel ventilation well supporting construction as claimed in claim 9, it is characterised in that: in well bore section (2)
Between the construction joint of adjacent well bore lining cutting layer (21), between well bore lining cutting layer (21) and fore shaft circle (11) and well bore lining cutting layer
(21) circumferential closed sealing rod is set between the construction joint of shaft bottom lining cutting layer (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910184746.5A CN109826654A (en) | 2019-03-12 | 2019-03-12 | Tunnel ventilation well supporting construction and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910184746.5A CN109826654A (en) | 2019-03-12 | 2019-03-12 | Tunnel ventilation well supporting construction and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109826654A true CN109826654A (en) | 2019-05-31 |
Family
ID=66869136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910184746.5A Pending CN109826654A (en) | 2019-03-12 | 2019-03-12 | Tunnel ventilation well supporting construction and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109826654A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847036A (en) * | 2021-10-25 | 2021-12-28 | 安徽理工大学 | Double-wall seat structure for deep drilling shaft after well wall bottom breaking and construction method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638898A (en) * | 2009-08-19 | 2010-02-03 | 郑州市市政工程总公司 | Suspension type construction method of top pipe shaft |
| CN102635359A (en) * | 2012-04-13 | 2012-08-15 | 中铁十七局集团第三工程有限公司 | Energy-saving rapid construction method for ventilating shafts of tunnels |
| CN103982188A (en) * | 2014-06-03 | 2014-08-13 | 中铁第一勘察设计院集团有限公司 | Supporting structure system of rock stratum large-section deep vertical shaft and construction method of supporting structure system |
| CN105240018A (en) * | 2015-10-30 | 2016-01-13 | 中铁上海工程局集团有限公司 | Vertical shaft construction device and method |
| CN105545342A (en) * | 2016-03-02 | 2016-05-04 | 中铁第一勘察设计院集团有限公司 | Smoke shaft of existing lining tunnel inner arch and constructing method of smoke shaft |
| CN106677787A (en) * | 2016-12-27 | 2017-05-17 | 中冶集团武汉勘察研究院有限公司 | Vertical shaft restoration and reinforcement structure and restoration and reinforcement construction method |
| CN207003499U (en) * | 2017-07-25 | 2018-02-13 | 广州大学 | A kind of anti-floating lifting device of underground tunnel upper excavation of foundation pit |
| CN109026012A (en) * | 2018-07-25 | 2018-12-18 | 中国电建集团华东勘测设计研究院有限公司 | Vertical shaft surrounding rock supporting structure and its excavation supporting method |
-
2019
- 2019-03-12 CN CN201910184746.5A patent/CN109826654A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638898A (en) * | 2009-08-19 | 2010-02-03 | 郑州市市政工程总公司 | Suspension type construction method of top pipe shaft |
| CN102635359A (en) * | 2012-04-13 | 2012-08-15 | 中铁十七局集团第三工程有限公司 | Energy-saving rapid construction method for ventilating shafts of tunnels |
| CN103982188A (en) * | 2014-06-03 | 2014-08-13 | 中铁第一勘察设计院集团有限公司 | Supporting structure system of rock stratum large-section deep vertical shaft and construction method of supporting structure system |
| CN105240018A (en) * | 2015-10-30 | 2016-01-13 | 中铁上海工程局集团有限公司 | Vertical shaft construction device and method |
| CN105545342A (en) * | 2016-03-02 | 2016-05-04 | 中铁第一勘察设计院集团有限公司 | Smoke shaft of existing lining tunnel inner arch and constructing method of smoke shaft |
| CN106677787A (en) * | 2016-12-27 | 2017-05-17 | 中冶集团武汉勘察研究院有限公司 | Vertical shaft restoration and reinforcement structure and restoration and reinforcement construction method |
| CN207003499U (en) * | 2017-07-25 | 2018-02-13 | 广州大学 | A kind of anti-floating lifting device of underground tunnel upper excavation of foundation pit |
| CN109026012A (en) * | 2018-07-25 | 2018-12-18 | 中国电建集团华东勘测设计研究院有限公司 | Vertical shaft surrounding rock supporting structure and its excavation supporting method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847036A (en) * | 2021-10-25 | 2021-12-28 | 安徽理工大学 | Double-wall seat structure for deep drilling shaft after well wall bottom breaking and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103089275B (en) | Control method of surrounding rocks in water-rich very-broken surrounding rock tunnel collapse sections | |
| CN102562099B (en) | Method for carrying out rapid face excavation construction of loess tunnel by double rows of small conduits | |
| CN102979531B (en) | Reinforce construction method and the structure of large-scale rock slope deep weak structural plane | |
| CN109372517A (en) | One kind is suitable for wearing water supplying pipe construction method under upper soft lower hard compound stratum tunnel | |
| CN108266191B (en) | A kind of multiple-arch tunnel optimized construction method | |
| CN105525619B (en) | A kind of water rich strata bored tunnel occlusion pipe curtain | |
| CN105781573A (en) | Railway down-traversing highway tunnel double-layer casing pipe reinforcement double-pipe shed follow-pipe drilling construction method | |
| CN110331992A (en) | A kind of hole daguanpeng construction method | |
| CN104653188B (en) | A kind of large-diameter shield that arranges in tunneling air channel receives and the method for starting well | |
| CN106437726A (en) | Ground fracture crushed zone passing construction method for shallow-buried tunnel excavation | |
| CN104533425B (en) | Vertical shaft overall pouring section walling crib and vertical shaft overall pouring section walling crib construction method | |
| CN110700841B (en) | Double-side-wall guide pit type excavation method for tunnel excavation | |
| CN105350988B (en) | Tunnel Base reinforcement means | |
| CN106884665B (en) | A kind of Double Multi-Arch start tunneling method based on arch set arch | |
| CN107012861B (en) | A kind of discrete material core expansive concrete stake and its construction method | |
| CN110144886A (en) | Deep soft stratum long spire is with pipe, churning driven pore-creating filling pile construction method | |
| CN111119910A (en) | Tunnel collapse section back-blowing sand grouting backfill structure and construction method thereof | |
| CN110195604A (en) | A kind of threaded list road main tunnel TBM driving section constructing method | |
| CN110284885A (en) | Shield inspection-pit construction method | |
| CN109667587A (en) | Using the drill+blast tunnel structure of prefabrication and assembly construction inverted arch | |
| CN110761808A (en) | Large-section loess tunnel supporting system and supporting construction method | |
| CN110700860B (en) | Construction method of soil-stone boundary tunnel crossing loess valley | |
| CN109057802A (en) | Shallow tunnel with big cross-section underpass of freeways construction method | |
| CN109826654A (en) | Tunnel ventilation well supporting construction and its construction method | |
| CN108487930B (en) | A kind of method that rotary churning pile administers deep Soft rock tunnel pucking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190531 |
|
| RJ01 | Rejection of invention patent application after publication |