CN109611101A - A kind of section in Tunneling by mining method converts construction technology - Google Patents
A kind of section in Tunneling by mining method converts construction technology Download PDFInfo
- Publication number
- CN109611101A CN109611101A CN201811471919.3A CN201811471919A CN109611101A CN 109611101 A CN109611101 A CN 109611101A CN 201811471919 A CN201811471919 A CN 201811471919A CN 109611101 A CN109611101 A CN 109611101A
- Authority
- CN
- China
- Prior art keywords
- section
- construction
- top bar
- tunneling
- predicament
- 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
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000010276 construction Methods 0.000 title claims abstract description 52
- 238000005516 engineering process Methods 0.000 title claims abstract description 27
- 238000005065 mining Methods 0.000 title claims abstract description 24
- 230000005641 tunneling Effects 0.000 title claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 238000009412 basement excavation Methods 0.000 claims description 21
- 239000002689 soil Substances 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 10
- 125000004122 cyclic group Chemical group 0.000 claims description 6
- 239000011378 shotcrete Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 210000005239 tubule Anatomy 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses the sections in a kind of Tunneling by mining method to convert construction technology, belong to constructing metro tunnel field, section conversion construction technology in the Tunneling by mining method includes two kinds of section conversion processes, it is big cross section respectively to light section conversion process and light section to big cross section conversion process, section in the Tunneling by mining method convert construction technology excavated from shield well toward big mileage first experience big cross section to being gone through light section to big cross section conversion process after light section conversion process, section conversion construction technology in a kind of Tunneling by mining method is closely calculated by rigorous, different section conversion process measures is provided in converting out for different section, each process linking simultaneously is close, it is preferable for the settlement control of entire section, duration progress is fast, adapt to the changeable section of cross dimensions, in addition for entire section conversion at Stability and safety have sufficient guarantee, are worth promoting and using in constructing metro tunnel field.
Description
Technical field
The present invention relates to constructing metro tunnel field, the section in specifically a kind of Tunneling by mining method converts construction technology.
Background technique
Xi'an geothermic field science and technology eight tunnels~science and technology, six road shallow buried covered excavation section working procedures are complicated, entering and leaving section Tunneling by mining method
In, there is a problem of that the transformation between big cross section, light section is frequent between running tunnel, the engineering method conversion of section variation complexity
It is the construction emphasis and construction Difficulties in this section, its construction technology quality not only decides the stability and peace of construction tunnel
Quan Xing, it is often more important that it is related to the water-impervious operation and tunnel anti-deformation operation of subway tunnel in the future, for subway tunnel
Service life it is most important.
For the problems in above-mentioned background technology, the present invention is intended to provide the section in a kind of Tunneling by mining method converts construction
Technique.
Summary of the invention
The purpose of the present invention is to provide the sections in a kind of Tunneling by mining method to convert construction technology, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of section in Tunneling by mining method converts construction technology, including two kinds of section conversion processes, is big cross section respectively
To light section conversion process and light section to big cross section conversion process, from shield well toward big mileage excavate first experience big cross section to
Light section conversion process is digging to section variation by light section is gone through to big cross section conversion process, is needing that 1.5m long is arranged
Changeover portion, the changeover portion is made of three Pin grids, and the effect of changeover portion is that gradually transition expands or shrinks section.
As a further solution of the present invention: Change measure of the big cross section to light section conversion process are as follows:
Step 1: applying preliminary bracing at top bar 3 construction to section variations, and reserved standard outline excavation, spray are mixed
Solidifying grave closes reserved excavation face, gets out of a predicament or an embarrassing situation 4 away from stopping construction at 3m at section variation, and complete supporting construction；
Step 2: applying preliminary bracing and reserved standard section outline excavation at 5 construction to section variations, initial stage is completed
Supporting, pneumatically placed concrete close reserved excavation face, get out of a predicament or an embarrassing situation 6 away from construction is stopped at 3m at section variation, complete preliminary bracing.
Face has formed positive step at this time；
Step 3: construction top bar standard paragraphs advanced tubule, and a Pin standard section grid steel frame is set up in face,
Gunite concrete is fixed；
Step 4: excavating arch annular, Core Soil is stayed, excavates drilling depth 0.5m, supporting top bar arch forms positive step and applies
Work.
As further scheme of the invention: Change measure of the light section to big cross section conversion process are as follows:
The 5-6m step 1: top bar is got out of a predicament or an embarrassing situation in advance stops top bar arch annular when top bar is constructed to transition
Excavation supporting excavates intercalated nucleus cubsoil, closes face, while getting out of a predicament or an embarrassing situation and continuing to construct.It is getting out of a predicament or an embarrassing situation away from transition 3.0m
When, stop construction of getting out of a predicament or an embarrassing situation；
Step 2: gunite concrete closes top bar face after the completion of top bar Core Soil excavates, divide face.
The top bar that the soil body is stitched to idio-morphosis on the left of top bar is digged, excavation cyclic advance is 0.5m.After excavation, appear on the stage in time
Rank preliminary bracing, it is longitudinal to be connected with A22 connection reinforcing bar；
Step 3: it is disconnected to idio-morphosis seam to dig the left side soil body of getting out of a predicament or an embarrassing situation after left half side construction to transition of getting out of a predicament or an embarrassing situation
Face is got out of a predicament or an embarrassing situation, and excavates cyclic advance 0.5m, and apply preliminary bracing in time.
Compared with prior art, the beneficial effects of the present invention are:
Section conversion construction technology in a kind of Tunneling by mining method is closely calculated by rigorous, in different section
Convert out the different section conversion process measure that is provided with, while each process linking is close, and the sedimentation of entire section is become
Preferably, duration progress is fast for shape control, adapts to the changeable section of cross dimensions, engineering cost is greatly reduced, in addition for entire
Stability and safety at section conversion have sufficient guarantee.
Section conversion construction technology in a kind of Tunneling by mining method is worth promoting and using in subway work field.
Detailed description of the invention
Fig. 1 is that a kind of big cross section of the section conversion construction technology in Tunneling by mining method converts light-gauge B3-B2 section
Transformational structure schematic diagram.
Fig. 2 is a kind of bis- lining structure schematic diagram of plug wall DT3 of the section conversion construction technology in Tunneling by mining method.
Fig. 3 is that a kind of big cross section of the section conversion construction technology in Tunneling by mining method converts light-gauge B2-B1 section
Transformational structure schematic diagram.
Fig. 4 is a kind of bis- lining structure schematic diagram of plug wall DT2 of the section conversion construction technology in Tunneling by mining method.
Fig. 5 is that a kind of light section of the section conversion construction technology in Tunneling by mining method converts the conversion of big cross section B1-B4 section
Structural schematic diagram.
Fig. 6 is a kind of bis- lining structure schematic diagram of plug wall DT1 of the section conversion construction technology in Tunneling by mining method.
Specific embodiment
Technical solution of the present invention is described in more detail With reference to embodiment.
Please refer to Fig. 1-3, the section in a kind of Tunneling by mining method converts construction technology comprising two kinds of sections are converted
Journey is big cross section respectively to light section conversion process and light section to big cross section conversion process, is excavated from shield well toward big mileage
First experience big cross section is to light section conversion process, as shown in Fig.1 and Fig.2；By light section is gone through to big cross section conversion process, such as scheme
Shown in 3, is digging to section variation, needing to be arranged the changeover portion of 1.5m long, the changeover portion is made of three Pin grids, transition
The effect of section is that gradually transition expands or shrinks section.
Change measure of the big cross section to light section conversion process are as follows:
Step 1: applying preliminary bracing at top bar 3 construction to section variations, and reserved standard outline excavation, spray are mixed
Solidifying grave closes reserved excavation face, gets out of a predicament or an embarrassing situation 4 away from stopping construction at 3m at section variation, and complete supporting construction；
Step 2: applying preliminary bracing and reserved standard section outline excavation at 5 construction to section variations, initial stage is completed
Supporting, pneumatically placed concrete close reserved excavation face, get out of a predicament or an embarrassing situation 6 away from construction is stopped at 3m at section variation, complete preliminary bracing.
Face has formed positive step at this time；
Step 3: construction top bar standard paragraphs advanced tubule, and a Pin standard section grid steel frame is set up in face,
Gunite concrete is fixed；
Step 4: excavating arch annular, Core Soil is stayed, excavates drilling depth 0.5m, supporting top bar arch forms positive step and applies
Work.
Change measure of the light section to big cross section conversion process are as follows:
The 5-6m step 1: top bar is got out of a predicament or an embarrassing situation in advance stops top bar arch annular when top bar is constructed to transition
Excavation supporting excavates intercalated nucleus cubsoil, closes face, while getting out of a predicament or an embarrassing situation and continuing to construct.It is getting out of a predicament or an embarrassing situation away from transition 3.0m
When, stop construction of getting out of a predicament or an embarrassing situation；
Step 2: gunite concrete closes top bar face after the completion of top bar Core Soil excavates, divide face.
The top bar that the soil body is stitched to idio-morphosis on the left of top bar is digged, excavation cyclic advance is 0.5m.After excavation, appear on the stage in time
Rank preliminary bracing, it is longitudinal to be connected with A22 connection reinforcing bar；
Step 3: it is disconnected to idio-morphosis seam to dig the left side soil body of getting out of a predicament or an embarrassing situation after left half side construction to transition of getting out of a predicament or an embarrassing situation
Face is got out of a predicament or an embarrassing situation, and excavates cyclic advance 0.5m, and apply preliminary bracing in time.
Better embodiment of the invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be without departing from the purpose of the present invention
Various changes can be made.
Claims (3)
1. the section in a kind of Tunneling by mining method converts construction technology, characterized by comprising: two kinds of section conversion processes, respectively
It is big cross section to light section conversion process and light section to big cross section conversion process, the section conversion in the Tunneling by mining method is applied
Work construction technology process is to excavate first that experience big cross section is to light section conversion process from shield well toward big mileage, by going through light section
To big cross section conversion process, is digging to section variation, needing to be arranged the changeover portion of 1.5m long, the changeover portion is by three Pin grids
Composition.
2. the section in a kind of Tunneling by mining method according to claim 1 converts construction technology, it is characterised in that: described big
Change measure of the section to light section conversion process are as follows:
Step 1: preliminary bracing is applied at top bar 3 construction to section variations, and reserved standard outline excavation, pneumatically placed concrete
Reserved excavation face is closed, gets out of a predicament or an embarrassing situation 4 away from stopping construction at 3m at section variation, and complete supporting construction；
Step 2: applying preliminary bracing and reserved standard section outline excavation at 5 construction to section variations, initial stage branch is completed
Shield, pneumatically placed concrete close reserved excavation face, get out of a predicament or an embarrassing situation 6 away from construction is stopped at 3m at section variation, complete preliminary bracing.At this time
Face has formed positive step；
Step 3: construction top bar standard paragraphs advanced tubule, and a Pin standard section grid steel frame, injection are set up in face
Concrete is fixed；
Step 4: excavating arch annular, Core Soil is stayed, excavates drilling depth 0.5m, supporting top bar arch forms main step construction.
3. the section in a kind of Tunneling by mining method according to claim 1 converts construction technology, it is characterised in that: described small
Change measure of the section to big cross section conversion process are as follows:
The 5-6m step 1: top bar is got out of a predicament or an embarrassing situation in advance stops top bar arch Ring Cutting when top bar is constructed to transition
Intercalated nucleus cubsoil is excavated in supporting, closes face, while getting out of a predicament or an embarrassing situation and continuing to construct.When getting out of a predicament or an embarrassing situation away from transition 3.0m, stop
It gets out of a predicament or an embarrassing situation construction；
Step 2: gunite concrete closes top bar face after the completion of top bar Core Soil excavates, divide face.It digs
The top bar that the soil body is stitched to idio-morphosis on the left of top bar, excavation cyclic advance are 0.5m.After excavation, top bar initial stage is done in time
Supporting, it is longitudinal to be connected with A22 connection reinforcing bar；
Step 3: digging the left side soil body to idio-morphosis of getting out of a predicament or an embarrassing situation after left half side construction to transition of getting out of a predicament or an embarrassing situation and stitching under section
Step excavates cyclic advance 0.5m, and applies preliminary bracing in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471919.3A CN109611101A (en) | 2018-12-04 | 2018-12-04 | A kind of section in Tunneling by mining method converts construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471919.3A CN109611101A (en) | 2018-12-04 | 2018-12-04 | A kind of section in Tunneling by mining method converts construction technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109611101A true CN109611101A (en) | 2019-04-12 |
Family
ID=66005842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811471919.3A Pending CN109611101A (en) | 2018-12-04 | 2018-12-04 | A kind of section in Tunneling by mining method converts construction technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109611101A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306986A (en) * | 2019-05-09 | 2019-10-08 | 深圳市综合交通设计研究院有限公司 | A kind of anti-cut construction method of underground interchange fork node Tunneling by mining method |
| CN110331980A (en) * | 2019-06-17 | 2019-10-15 | 中国铁建大桥工程局集团有限公司 | A kind of shallow embedding fine sand layer tunnel Varied section transition and conversion construction method |
| CN111852501A (en) * | 2020-07-08 | 2020-10-30 | 深圳市综合交通设计研究院有限公司 | Transfer structure between double-layer and single-layer mine method tunnel and its construction method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952350A (en) * | 2006-10-27 | 2007-04-25 | 中铁四局集团有限公司 | Rapid construction method for small-section abrupt change tunnel to large-section tunnel |
| CN102312672A (en) * | 2011-09-23 | 2012-01-11 | 中南大学 | Fast large-cross-section tunnel construction method adapting to complicated and variable geological conditions |
| RU115413U1 (en) * | 2012-02-07 | 2012-04-27 | Открытое Акционерное Общество "Метрогипротранс" (Оао "Метрогипротранс") | DEVICE FOR TURNING AND MOVING LARGE-SIZED EQUIPMENT IN UNDERGROUND OPERATIONS OF LIMITED DIMENSIONS |
| CN102852525A (en) * | 2012-09-29 | 2013-01-02 | 中铁二局股份有限公司 | Underground tunnel enlarging and excavating method from small section of single-line tunnel to large section of double-line tunnel |
| CN103334761A (en) * | 2013-06-28 | 2013-10-02 | 中国一冶集团有限公司 | Method of constructing shallow tunnel underground passage variable-cross section cross mid-partition wall |
| CN103939106A (en) * | 2014-04-03 | 2014-07-23 | 北京交科公路勘察设计研究院有限公司 | Construction method for converting two side-wall pilot tunnel method to CRD method |
| CN107605490A (en) * | 2017-08-28 | 2018-01-19 | 中交第二航务工程局有限公司 | Single hole large cross-section tunnel double side wall construction conversion process |
| CN108316931A (en) * | 2018-03-05 | 2018-07-24 | 北京市政建设集团有限责任公司 | A kind of branch-cut bridge section tunnel CRD method construction methods |
| CN108442943A (en) * | 2018-03-05 | 2018-08-24 | 北京市政建设集团有限责任公司 | A kind of branch-cut bridge section tunnel and Double side heading method construction method |
| CN108457656A (en) * | 2018-03-05 | 2018-08-28 | 北京市政建设集团有限责任公司 | A kind of unearthed method for tunnel construction |
-
2018
- 2018-12-04 CN CN201811471919.3A patent/CN109611101A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952350A (en) * | 2006-10-27 | 2007-04-25 | 中铁四局集团有限公司 | Rapid construction method for small-section abrupt change tunnel to large-section tunnel |
| CN102312672A (en) * | 2011-09-23 | 2012-01-11 | 中南大学 | Fast large-cross-section tunnel construction method adapting to complicated and variable geological conditions |
| RU115413U1 (en) * | 2012-02-07 | 2012-04-27 | Открытое Акционерное Общество "Метрогипротранс" (Оао "Метрогипротранс") | DEVICE FOR TURNING AND MOVING LARGE-SIZED EQUIPMENT IN UNDERGROUND OPERATIONS OF LIMITED DIMENSIONS |
| CN102852525A (en) * | 2012-09-29 | 2013-01-02 | 中铁二局股份有限公司 | Underground tunnel enlarging and excavating method from small section of single-line tunnel to large section of double-line tunnel |
| CN103334761A (en) * | 2013-06-28 | 2013-10-02 | 中国一冶集团有限公司 | Method of constructing shallow tunnel underground passage variable-cross section cross mid-partition wall |
| CN103939106A (en) * | 2014-04-03 | 2014-07-23 | 北京交科公路勘察设计研究院有限公司 | Construction method for converting two side-wall pilot tunnel method to CRD method |
| CN107605490A (en) * | 2017-08-28 | 2018-01-19 | 中交第二航务工程局有限公司 | Single hole large cross-section tunnel double side wall construction conversion process |
| CN108316931A (en) * | 2018-03-05 | 2018-07-24 | 北京市政建设集团有限责任公司 | A kind of branch-cut bridge section tunnel CRD method construction methods |
| CN108442943A (en) * | 2018-03-05 | 2018-08-24 | 北京市政建设集团有限责任公司 | A kind of branch-cut bridge section tunnel and Double side heading method construction method |
| CN108457656A (en) * | 2018-03-05 | 2018-08-28 | 北京市政建设集团有限责任公司 | A kind of unearthed method for tunnel construction |
Non-Patent Citations (1)
| Title |
|---|
| 任瑞华: "北京地铁陶然亭站-菜市口站区间渡线区隧道暗挖施工技术", 《科学之友》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306986A (en) * | 2019-05-09 | 2019-10-08 | 深圳市综合交通设计研究院有限公司 | A kind of anti-cut construction method of underground interchange fork node Tunneling by mining method |
| CN110331980A (en) * | 2019-06-17 | 2019-10-15 | 中国铁建大桥工程局集团有限公司 | A kind of shallow embedding fine sand layer tunnel Varied section transition and conversion construction method |
| CN111852501A (en) * | 2020-07-08 | 2020-10-30 | 深圳市综合交通设计研究院有限公司 | Transfer structure between double-layer and single-layer mine method tunnel and its construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101440708B (en) | PBA shallow buried underground excavating close range large section three-hole separated island type structure construction method | |
| CN102562075B (en) | Large cross-section weak surrounding rock tunnel three-step and six-part short-distance construction method | |
| CN103775092B (en) | Tunnels in Shallow Buried tunneling remaining core soil in advance improvement CRD construction | |
| CN102562099B (en) | Method for carrying out rapid face excavation construction of loess tunnel by double rows of small conduits | |
| CN100487224C (en) | Rapid construction method for tunnels with sudden change from small section to large section | |
| CN103277106B (en) | Highway tunnel three-step five-procedure excavation construction method | |
| CN108756894B (en) | Tunnel micro- three step top Core Soil construction | |
| CN104806251B (en) | Subsidiary inverted excavation construction method for urban subway station under complex environment | |
| CN102071947A (en) | Construction method for soft surrounding rock section of large-span tunnel portal | |
| CN104653187B (en) | Method for excavating geological large-section tunnel with water-rich sand layer | |
| CN108442943A (en) | A kind of branch-cut bridge section tunnel and Double side heading method construction method | |
| CN108843338A (en) | A kind of integrated excavation construction method of Construction of Silo channel conversion large cross-section tunnel | |
| CN102979531B (en) | Reinforce construction method and the structure of large-scale rock slope deep weak structural plane | |
| CN110242305A (en) | A kind of inclined shaft applies the construction technique in main hole into single side heading method | |
| CN103993885A (en) | Construction method for underground excavation tunnel side-direction hole opening supporting system | |
| CN101539021B (en) | Road tunnel excavation method | |
| CN103628889A (en) | Quick sealing method for excavating phyllite stratum tunnel | |
| CN109611101A (en) | A kind of section in Tunneling by mining method converts construction technology | |
| CN104632227B (en) | Subway station excavation technology of single-layer beam arch structure | |
| CN103899318A (en) | Medium ground tunnel milling excavating and mating mechanized construction method | |
| CN110439574A (en) | It is originated for shield lateral translation and the tunnel structure and construction method of haul of slagging tap | |
| CN108361036B (en) | A kind of construction method that subway station accessory structure is plug-in | |
| CN107401161A (en) | High ferro shield tunnel construction method is worn under pipe-roof method and MJS method joint reinforcements | |
| CN205100989U (en) | Utilize oblique access structure of subway access & exit double as construction | |
| CN203925513U (en) | The tunnel portal liner structure in steep location, slope is faced upward on limit |
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: 20190412 |
|
| RJ01 | Rejection of invention patent application after publication |