CN106812530B - Use the method for construction of protrusion fashioned iron supporting material and the steel pipe multistage tunnel of nose girder - Google Patents
Use the method for construction of protrusion fashioned iron supporting material and the steel pipe multistage tunnel of nose girder Download PDFInfo
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- CN106812530B CN106812530B CN201610878147.XA CN201610878147A CN106812530B CN 106812530 B CN106812530 B CN 106812530B CN 201610878147 A CN201610878147 A CN 201610878147A CN 106812530 B CN106812530 B CN 106812530B
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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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- 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
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
-
- 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
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Abstract
The present invention relates to a kind of construction construction methods using protrusion fashioned iron supporting material and the steel pipe multistage tunnel that pressurizes of nose girder, and have following step: a. first stage in a vertical direction intercepts portal (10)；B. second stage installs tunnel-shaped nose girder (20) on the above-mentioned portal (10) being intercepted；C. the phase III punches with above-mentioned tunnel direction side by side at regular intervals along above-mentioned nose girder (20) direction；D. fourth stage forms grout hole (41) steel pipe (40) in the inner insertion installation of above-mentioned insertion hole (30)；E. the 5th stage is in the milk around above-mentioned steel pipe (40) and steel pipe (40) in the inner injection injection material of above-mentioned steel pipe (40)；F. the 6th stage installs steel supporting material (50) to support above-mentioned steel pipe while excavating above-mentioned tunnel internal.Through the invention, vertical direction at tunnel portal (10) is capable of providing to intercept and nose girder (20) are installed, along above-mentioned nose girder (20) direction, it drills by appropriate intervals and is inserted into hole (30), thus the borehole accuracy of insertion hole (30) is improved, even if in tunnel internal, also it can install at regular intervals steel pipe (40), since long range drilling becomes possible, the steel pipe (40) of sufficient length also can supporting tunnel, therefore increase tunnel supporting effect.
Description
Technical field
The present invention relates to the construction construction methods for the steel pipe multistage tunnel that pressurizes for using protrusion fashioned iron supporting material and nose girder.
Current background technology
It is peripheral in the tunnel to be built as shown in Fig. 1 a and Fig. 1 b at the thin tunnel in construction tunnel portal portion or soil layer,
Small-bore or bigbore steel pipe is inserted by appropriate intervals and implements to be in the milk, after so that above-mentioned steel pipe and ground is formed one, gradually
Having carried out tunnelling after supporting with the supportings such as H steel or grid supporting material inside it while tunneling tunnel.But it is above-mentioned
Traditional technology, when the construction of steel pipe multistage is implemented in tunnel periphery, because of reasons such as construction errors, be inserted into steel pipe borehole accuracy can under
Drop.Therefore the inside in tunnel is different from outside, and steel pipe is not aligned at regular intervals, irregular arrangement, to cut down supporting effect
Fruit.Moreover, when the bore operation of tunnel periphery, because long range drill can not, can supporting it is also limited with the length of steel pipe in road.
Moreover, since steel pipe and steel supporting material are separated from each other structure, supporting effect significantly subtracts in tunnel internal construction steel supporting material
It is few.In addition, when tunnel internal steel supporting material supporting, because steel supporting material is with simple connection structure, after installation, Wu Fashi
Axis direction pressurization is applied, not can be carried out steel pipe and the closely connected construction for being mined tunnel internal.Therefore, above-mentioned steel supporting material cannot be secured
Supporting steel pipe and it is mined tunnel internal, thus leads to the problem of landslide and backbreaks excessive phenomenon and supporting effect declines.
Summary of the invention
An example according to the present invention builds construction party using the steel pipe multistage tunnel that pressurizes of protrusion fashioned iron supporting material and nose girder
Method is built in construction method in tunnel, it may include following several stages.The first stage that portal intercepts in a vertical direction；Upper
State the second stage that tunnel-shaped nose girder is installed on interception portal；Along the length direction of above-mentioned nose girder, at regular intervals with it is upper
The progress direction for stating tunnel is drilled side by side is inserted into the phase III in hole；It is inserted into installation in above-mentioned insertion hole, forms grout hole steel
The fourth stage of pipe；Injection material is injected in above-mentioned steel pipe come the 5th stage around be in the milk above-mentioned steel pipe and steel pipe；In excavation
Steel supporting material is installed to support the 6th stage of above-mentioned steel pipe while stating tunnel internal.
Further, a part is separated into majority in above-mentioned 6th stage, including above-mentioned steel supporting material, and discretely
Point and (or) end installation screw jack and starts it, the process including the pressurization of above-mentioned steel supporting material axis direction.It is above-mentioned at this time
Steel supporting material meeting radial dilatation, can securely support inside above-mentioned steel pipe and above-mentioned tunneling.
It further, can also include supplement excavation above-mentioned excavation portion bottom, and above-mentioned after implementing above-mentioned 6th stage
Installation downside steel supporting material on the downside of steel supporting material, a part downside steel supporting material is installed together with screw jack, and starts this
Screw jack presses above-mentioned steel supporting material and above-mentioned downside steel supporting material the 7th stage of axial pressure.
Further, on above-mentioned nose girder, through-hole is formed along its center line, is drilled in this lead to the hole site, above-mentioned steel pipe can
It is inserted into above-mentioned insertion hole by above-mentioned through-hole.
Further, a part in above-mentioned steel supporting material, forms protrusion between each position of above-mentioned steel pipe, and these
Protrusion can be firmly supported above-mentioned steel pipe two sides.
Further, screw is formed in the end of above-mentioned steel pipe, these screw upper locking nuts enable above-mentioned nose girder jail
Admittedly combine above-mentioned steel pipe end.
Further, above-mentioned grout hole is only formed in the upper half of above-mentioned steel pipe, and above-mentioned cementing operations can be made above-mentioned
Implement the upper half of steel pipe.
Further, above-mentioned grout hole is likely to be inner wide and outer narrow.
Further, above-mentioned grout hole may will form multiple notch on the outside.
Further, above-mentioned grout hole may tilt backwards to be formed.
The explanation of attached drawing
Fig. 1 a is the longitudinal section view that diagram builds tunnel-shaped using traditional technology.
Fig. 1 b is cross-sectional view of Fig. 1 a on line A-A.
Fig. 2 a to Fig. 2 e is the steel pipe multistage of pressurizeing using protrusion fashioned iron supporting material and nose girder of an example according to the present invention
Build construction method flow chart in tunnel.
Fig. 3 is the shape longitudinal section view for implementing Fig. 2 a to Fig. 2 e to build tunnel.
Fig. 4 and Fig. 5 is sectional elevation of the Fig. 3 on A-A, line B-B.
Fig. 6 is the oblique view of Fig. 3.
Fig. 7 a is the shape cross-sectional view that the steel pipe grout hole of Fig. 6 is formed in steel pipe.
Fig. 7 b is that the steel pipe grout hole of Fig. 6 tilts backwards the shape cross-sectional view to be formed.
Fig. 7 c is the shape cross-sectional view that the steel pipe grout hole of Fig. 6 is formed by inner wide and outer narrow.
Fig. 7 d and Fig. 7 e are the cross-sectional view and front view that multiple kerfs are formed on the outside of the steel pipe grout hole of Fig. 6.
The explanation of appended drawing reference:
10: portal
20: nose girder
21: through-hole
30: insertion hole
40: steel pipe
41: grout hole
411: notch
43: screw
44: nut
50: steel supporting material
51: protrusion
55: downside steel supporting material
60: screw jack
Specific embodiment
The steel pipe multistage tunnel that pressurizes according to an embodiment of the invention using protrusion fashioned iron supporting material and nose girder is built
Construction method is explained in detail with reference to the accompanying drawings.Referring to Fig. 2 a to Fig. 2 e, according to the present invention utilization the protrusion fashioned iron supporting material of an example with
The steel pipe multistage tunnel that pressurizes of nose girder builds construction method, first stage, installation nose girder (20) including intercepting portal (10)
Second stage, drill be inserted into hole (30) phase III, insertion installation steel pipe (40) fourth stage, grouting the 5th stage
With the 6th stage of installation steel supporting material (50).As shown in Figure 2 a, the first stage for intercepting portal (10), is tunnel to be built
The stage that portal (10) intercepts in a vertical direction.As shown in Figure 2 b, the second stage for installing nose girder (20), is intercepted above-mentioned
Portal (10) position is installed by the stage of tunnel-shaped nose girder (20).Above-mentioned tunnel-shaped nose girder (20) is main to install leading for arch
Beam (20) (referring to Fig. 3 and Fig. 4), is drilled using them as supporting member and is inserted into hole (30), and insertion hole (30) precision is thus improved.Edge
Nose girder (20) center line form through-hole (21), with this through-hole (21) be that supporting member drills and is inserted into hole (30), or with nose girder
(20) outside is supporting member, drills be inserted into hole (30) on the outside, therefore borehole accuracy is higher than traditional technology, can also grow
Distance drilling increases tunnel support effect with sufficiently long steel pipe (40) supporting tunnel.As shown in Figure 2 c, it drills and is inserted into hole
(30) phase III is to carry out the stage for punching (30) side by side in direction by appropriate intervals and tunnel along nose girder (20) axial direction.
As previously mentioned, above-mentioned insertion hole (30) can be consistent on the through-hole (21) that nose girder (20) are centrally formed, or by appropriate intervals along
It is formed on the outside of nose girder (20).As shown in Figure 2 c, the fourth stage of insertion installation steel pipe (40), is the steel formation grout hole (41)
Pipe (40) is mounted on the stage of insertion hole (30).It drills according to aforementioned stages and is inserted into hole (30) shape, steel pipe is mounted with arch
(40).Above-mentioned steel pipe (40) be inserted into insertion hole (30) it is inner after, be welded and fixed end and the nose girder (20) of steel pipe (40), or
Steel pipe (40) upper locking nut that end forms screw (43) fixes nose girder (20) and steel pipe (40), thus integration steel pipe
(40) and nose girder (20) strong construction of tunnel portal (10), is built.
In addition, the above-mentioned grout hole (41) formed on steel pipe (40), according to the adjustings such as foundation situation formed its diameter and
It interval can jet grouting material in the aftermentioned stage by above-mentioned grout hole (41).Above-mentioned grout hole (41) both may be formed at entire steel
It manages (40) periphery, half position on the outside of steel pipe (40) can also be only formed in (referring to Fig. 7 a).Here outside half position meaning
Installation steel pipe (40) when positioned at tunnel lateral direction semi-circular portions.Therefore, in following stages, bootable grouting mainly exists
Half position is implemented on the outside of steel pipe (40).The grout hole (41) formed on above-mentioned steel pipe (40), can be by its outside and inside
Diameter is mutually perpendicular to, but grout hole can also be tilted or grout hole on the outside of it is different with inside diameter.For example, can be grouting
Below, i.e., tunnel portal (10) direction is formed slopely (referring to Fig. 7 b), in such case, steel pipe (40) hole (41) Xiang Gangguan (40)
When being inserted into insertion hole (30), grout hole clogging caused by staying in the inner small stone of insertion hole (30), soil can be prevented.And
And the grout hole (41) of inner wide and outer narrow can be formed (referring to Fig. 7 c).At this point, preventing big grain sand or stone etc. to grout hole (41)
The inflow of inside.Even flowing into granule sand or stone, also flowed into than the narrow apertura lateralis granule of inner wide and outer narrow, grout hole (41)
Sand, the stone etc. that will not be blocked, and flow into can follow jet grouting material to squeeze out.I.e. certain diameter when, can occur among hole
The phenomenon that blocking the stone of irregular shape, but when inner wide and outer narrow, it is difficult that this phenomenon occurs.And grout hole (41), outside it
Side will form multiple notch (411) (referring to Fig. 7 d and Fig. 7 e).At this point, even if getting into big sand, gravelstone grout hole (41) is inner
Head can also spray husky or stone by the injection material pressure of notch (411), prevent the blocking of grout hole (41).Above-mentioned notch
(411), it can be formed on the grout hole (41) of certain diameter or on the grout hole (41) of inner wide and outer narrow diameter.Grouting
5th stage was to come grouting steel pipe (40) and surrounding stage in the inner injection injection material of steel pipe (40).Therefore injection material penetrates into
Around steel pipe (40), steel pipe (40) can be made to be integrally formed with the ground around steel pipe (40), even if digging by following stages
Pick can also prevent collapsing of ground etc. (referring to Fig. 3 and Fig. 4).It is real between insertion hole (30) entrance and steel pipe (40) at this time
Caulk is applied to prevent the leakage of injection injection material.As shown in Figure 2 d, in the 6th stage for installing steel supporting material (50), be to excavate on one side
Steel supporting material (50) is installed on one side while tunnel internal and comes supporting steel pipe (40) and tunneling stage.Above-mentioned steel supporting material
(50) outside is isolated to form protrusion (51) (referring to Fig. 3 and Fig. 5) by appropriate intervals, steel pipe (40) is made to be located at each protrusion
(51) between.Above-mentioned protrusion (51) steel supporting material (50) is formed, steel pipe (40) supports inside and outside, greatly enhances the branch in tunnel
Protect effect.
, there is the poor direction due to steel pipe (40) in traditional technology situation, steel pipe (40) and steel supporting material (50) are mutual
Isolation, steel supporting material (50) can not correct supporting steel pipe (40), and steel pipe (40) does not press its two side direction, i.e. tunnel circumference side
To support, it may occur that lateral flow, so that situations such as tunnel internal ground collapses occur, steel pipe (40) can also tilt simultaneously
Or flowing, therefore steel pipe (40) cannot be supported normally and be mined tunnel internal.But in the present case, there is steel pipe
(40) installation direction is correct, and steel pipe (40) is radially firmly supported by steel supporting material (50), and by protrusion (51), steel pipe
(40) laterally, i.e. support in steel supporting material (50) axial direction is also secured, therefore stabilization is supported tunneling.For protrusion
(51), it can be formed on all steel supporting materials (50) of tunnel internal.But it is also only formed on part steel supporting material (50) as needed.
And protrusion (51) is not limited to shape shown in drawing, as long as energy lateral stability supporting steel pipe (40), even any shape.Separately
Outside, above-mentioned 6th stage may include the process of steel supporting material (50) axial pressure.Spiral thousand is installed i.e. on steel supporting material (50)
Jin top (60) (referring to Fig. 3 and Fig. 5) simultaneously starts it, can be axial by steel supporting material (50), i.e. steel supporting material (50) length direction
Pressurization.And then steel supporting material (50), by the promotion radial dilatation of screw jack (60), arch can be unfolded outward.Steel accordingly
Supporting material (50) is closely attached on the inside of steel pipe (40) and tunneling, and is securely supported.Above-mentioned screw jack (60), can be mounted on
Steel supporting material (50) end, or to be easy the pressurization of steel supporting material (50), steel supporting material (50) is separated by length direction, peace
It is also mountable on all points isolated with steel supporting material (50) end mounted in this burble point.Moreover it is possible to be installed in all
The steel supporting material (50) of tunnel internal separates several, can also separate a part therein, install screw jack later
(60).On traditional technology, since steel supporting material (50) is simple supporting steel pipe (40) and is mined tunnel foundation, not plus
Laminated structure, can not normally inhibit the cracking in tunnelling face, the relaxation of ground, collapsing, landslide phenomena such as.On the contrary, it is of the present invention because
By screw jack (60), steel supporting material (50) is pressed axial (length direction) compression, steel pipe (40) is radially distensible, thus presses
Contracting supporting steel pipe (40) and tunnel foundation is mined outward, so the present invention prevents or inhibits tunnel cracking, ground relaxation, collapses
Phenomena such as collapsing, caving in has the technology of effect well.
The present invention, can be regardless of the first half in tunnel and latter half of, and entire tunnel is disposably pressed the above-mentioned stage and built,
Tunnel can also be divided into first half and lower half, only build the upper half by the above-mentioned stage, then supplement builds the lower half in tunnel
Portion completes entire tunnel with this.
It is the explanation that tunnel lower half is built according to second method below.
After the 6th above-mentioned stage, moreover it is possible to supplement and excavate including excavation subordinate's half portion that aforementioned stages are excavated, pacify simultaneously
Load the 7th stage of side steel supporting material (55).As shown in Figure 2 e, above-mentioned 7th stage is that above-mentioned excavation portion is supplemented to excavate
Meanwhile installation downside steel supporting material (55) carrys out the stage of supporting steel supporting material (50) below steel supporting material (50).This downside steel
Supporting material (55) connects the downside for being mounted above steel supporting material (50), and a complete arch shape is consequently formed.Moreover, all
Downside steel supporting material (55) or part downside steel supporting material (55) and steel supporting material (50) tie point, it is very heavy to install spiral together
It pushes up (60), thus, it is possible to realize the axial pressure of steel supporting material (50) and downside steel supporting material (55).The case where nose girder (20),
Can lower half supplement installation under side launching nose.In addition, can also consider that in advance nose girder (20) is mounted on lower half in second stage.This
Shi Wuxu supplement installs lower side launching nose.As shown in fig. 6, the utilization protrusion fashioned iron supporting material (50) and nose girder of an example according to the present invention
Pressurize steel pipe multistage tunnel build construction method, at tunnel portal (10) install nose girder (20), along above-mentioned nose girder
(20) direction is in the milk after installing steel pipe (40) by appropriate intervals, thus increases the ground supporting effect before tunnelling.And
And while inside the tunneling of one side, steel supporting material (50) are installed on one side, and get all the protrusion (51) and screw jack (60) ready,
Make steel supporting material (50) closely connected supporting steel pipe (40), the one of steel pipe (40) and steel supporting material (50) is realized, so as to jail
Clamped support tunnel internal.
In short, being above exactly each technical essential of the invention, although above in conjunction with attached drawing to preferred implementation of the invention
Example is described, but the present invention is not limited to above-mentioned specific embodiment, above-mentioned specific embodiment be only it is schematical and
It is not restrictive, those skilled in the art under the inspiration of the present invention, want without prejudice to present inventive concept and right
Under the premise of asking, it can be deduced that a variety of similar enlightenments and accommodation, and corresponding simple change and modification are made, it is similar in this way
Transformation fall within the scope of protection of the present invention.
Claims (10)
1. a kind of construction construction method using protrusion fashioned iron supporting material and the steel pipe multistage tunnel that pressurizes of nose girder, feature exist
In with following step:
A. the first stage, that is, portal (10) is intercepted in a vertical direction；
B. second stage, that is, install tunnel-shaped nose girder (20) on the above-mentioned portal (10) being intercepted；
C. the phase III, that is, along above-mentioned nose girder (20) direction, insertion of drilling side by side with above-mentioned tunnel direction at regular intervals
Hole；
D. fourth stage, that is, form grout hole (41) steel pipe (40) in the inner insertion installation of above-mentioned insertion hole (30)；
E. the 5th stage, that is, be in the milk around above-mentioned steel pipe (40) and steel pipe (40) in the inner injection injection material of above-mentioned steel pipe (40)；
F. the 6th stage, that is, steel supporting material (50) are installed while excavating above-mentioned tunnel internal to support above-mentioned steel pipe.
2. construction method according to claim 1, which is characterized in that in above-mentioned 6th stage, by above-mentioned steel supporting material
(50) a part is separated, and installs screw jack (60) in the end of burble point and/or above-mentioned steel supporting material, and open
This screw jack (60) is moved, by above-mentioned steel supporting material (50) axial pressure, so that above-mentioned steel supporting material (50) radial dilatation, and
It is set securely to support the inside of above-mentioned steel pipe (40) and above-mentioned tunneling.
3. construction method according to claim 1, which is characterized in that after above-mentioned 6th stage, supplement excavates above-mentioned excavation
The downward part at place, and the installation downside steel supporting material (55) below above-mentioned steel supporting material (50), by the downside of a part
Steel supporting material (55) installs screw jack (60) together, and starts this screw jack (60), by above-mentioned steel supporting material (50)
With above-mentioned downside steel supporting material (55) axial pressure.
4. construction method according to claim 1, which is characterized in that form through-hole along center line on above-mentioned nose girder (20)
(21), above-mentioned insertion hole (30) is drilled in this through-hole (21) position, and above-mentioned steel pipe (40) can be inserted into insertion by through-hole (21)
Hole (30) is inner.
5. construction method according to claim 1, which is characterized in that a part in above-mentioned steel supporting material (50), upper
Above-mentioned steel pipe (40) two can be firmly supported by stating formation protrusion (51), these protrusions (51) between each position of steel pipe (40)
Side.
6. construction method according to claim 1, which is characterized in that form screw in the end of above-mentioned steel pipe (40)
(43), there are locking nut (44) on these screws (43), keep above-mentioned nose girder (20) secured in the end of above-mentioned steel pipe (40)
In conjunction with.
7. construction method according to claim 1, which is characterized in that above-mentioned grout hole (41) is only in above-mentioned steel pipe (40)
The upper half is formed, and above-mentioned grouting can be made mainly to be carried out in the upper half of above-mentioned steel pipe (40).
8. construction method according to claim 1, which is characterized in that above-mentioned grout hole (41) inner wide and outer narrow.
9. construction method according to claim 1, which is characterized in that form multiple cut on the outside of above-mentioned grout hole (41)
Mouthful.
10. construction method according to claim 1, which is characterized in that above-mentioned grout hole (41) tilts backwards to be formed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150188228A KR101636261B1 (en) | 2015-12-29 | 2015-12-29 | Pipe roof tunnel construction method using guide beam and protrusion-type steel rib which enables pressurization |
| KR10-2015-0188228 | 2015-12-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106812530A CN106812530A (en) | 2017-06-09 |
| CN106812530B true CN106812530B (en) | 2019-04-02 |
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| KR (1) | KR101636261B1 (en) |
| CN (1) | CN106812530B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101827341B1 (en) * | 2016-11-25 | 2018-02-08 | 양재이엔지 주식회사 | Rock Excavation Method in Tunnel |
| KR101877436B1 (en) * | 2017-07-17 | 2018-07-11 | 우경기술주식회사 | Tunnel construction method for non-cutting natural ground |
| KR102312712B1 (en) * | 2018-08-22 | 2021-10-27 | 주식회사 포스코건설 | Arch structure using corrugated steel plate |
| CN109404011A (en) * | 2018-09-10 | 2019-03-01 | 北京隧盾市政建设有限公司 | A kind of heat insulating construction method of pipe curtain slip casting tunnel water outlet |
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| JPH05256085A (en) * | 1992-03-13 | 1993-10-05 | Tokyo Gas Co Ltd | Method of grouting driving double steel pipe |
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| KR101091081B1 (en) * | 2011-07-11 | 2011-12-09 | 주식회사 성우사면 | Excavation method and construction of dual tunnel |
| KR101121538B1 (en) * | 2011-09-30 | 2012-03-06 | 박길석 | Diaphragm wall tunnel method - dtm, and tunnel structure using diaphragm wall |
| ZA201503021B (en) * | 2014-05-08 | 2015-12-23 | Elbroc Mining Products (Pty) Ltd | Support arrangement |
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- 2015-12-29 KR KR1020150188228A patent/KR101636261B1/en active IP Right Grant
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- 2016-09-30 CN CN201610878147.XA patent/CN106812530B/en active Active
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|---|---|---|---|---|
| JPH05256085A (en) * | 1992-03-13 | 1993-10-05 | Tokyo Gas Co Ltd | Method of grouting driving double steel pipe |
| JP3694656B2 (en) * | 2001-05-15 | 2005-09-14 | 機動建設工業株式会社 | Movable jack jack moving device |
| CN101349154A (en) * | 2007-07-18 | 2009-01-21 | 株式会社Ntsenc | Structure construction method for forming subterranean tunnel |
| CN101285385A (en) * | 2008-05-29 | 2008-10-15 | 中交第二公路勘察设计研究院有限公司 | Undermining method for three-dimensional pipe-roof |
| CN101824987A (en) * | 2009-03-06 | 2010-09-08 | 株式会社Ntsenc | Method for constructing structure for underground tunnel |
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| CN106812530A (en) | 2017-06-09 |
| KR101636261B1 (en) | 2016-07-07 |
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