CN109630144A - The method of the shield machine replacement twice shield tail brush ring of water rich strata constructing tunnel - Google Patents
The method of the shield machine replacement twice shield tail brush ring of water rich strata constructing tunnel Download PDFInfo
- Publication number
- CN109630144A CN109630144A CN201811479487.0A CN201811479487A CN109630144A CN 109630144 A CN109630144 A CN 109630144A CN 201811479487 A CN201811479487 A CN 201811479487A CN 109630144 A CN109630144 A CN 109630144A
- Authority
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- China
- Prior art keywords
- shield
- tail brush
- shield tail
- twice
- brush ring
- 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.)
- Granted
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 27
- 239000003673 groundwater Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 239000004519 grease Substances 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- 239000004570 mortar (masonry) Substances 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000003491 array Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000004576 sand Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of methods of the shield machine of water rich strata constructing tunnel replacement twice shield tail brush ring, the following steps are included: 1) carry out patching to the section of jurisdiction for being used to support tunnel, 2) level of ground water within the scope of ventilating shaft is reduced, 3) shield tail brush ring shield machine, which tunnels forward, exposes the twice shield tail brush ring that needs replacing of shield drive end unit, 4) removing old shield tail brush ring and more renewing.The present invention has filled up in rich water soft stratum the construction technology blank for replacing twice shield tail brush, with good economic efficiency and social benefit.The limitation of one of shield tail brush of shield drive end unit can only be replaced by breaching the prior art, can be replaced twice shield tail brush simultaneously, be improved the construction efficiency of tunnel piercing, and provide safety guarantee, solve the technical problem of the Shield Construction Method Used shield tail safety of relatively long distance.It also solves tunnel and goes out the waterproof problem of downcast mouth, and ensure that the safety of replacement shield tail brush operating environment, the faster and better construction operation for completing replacement shield tail brush.
Description
Technical field
The present invention relates to a kind of replacing options of shield machine tail sealing device for underground water rich strata constructing tunnel,
In particular to a kind of method for replacing shield drive end unit shield tail brush ring, belongs to hypogee technical field of construction.
Background technique
With the continuous development of shield machine and its construction technology and perfect, shield-tunneling construction engineering method also has become current city tunnel
Indispensable a kind of construction method in road and subway engineering.But when tunnel is built in big city, it is faced with the complexity in city
Difficulty caused by unstability of property, the diversity of underground structure and pipeline and stratum etc., when the shield machine in tunnel passes through
When intricately condition above-mentioned, the route of longer and small radius of curvature is needed, the shield tail brush sealing effect to shield drive end unit is pole
Big test.As shown in Figures 2 and 3, interval secures three annular shield tail brush rings 20 in shield drive end unit shield shell 101, often
One of shield tail brush ring 20 is spliced by muti-piece shield tail brush block 201.When shield machine 10 tunnels, three shield tail brush rings 20 are for sealing
It puts in 30 periphery of ring body being made of in shield drive end unit shield shell 101 and multi-disc section of jurisdiction 301 and shield drive end unit shield shell 101
Gap between wall, to prevent water and silt in stratum from entering in shield machine 10.Shield machine 10 mixes in underground driving silt
Under severe working condition, after a distance is tunneled in underground, 20 well damage of shield tail brush ring needs replacement in time.Conventional
The method of replacement shield tail brush is one of shield tail brush ring 20 of replacement, or replaces in shallow embedding routine stratum shield tail brush and twice after retaining
Shield tail brush ring 20, for keeping the leakproofness of the entirety of three shield tail brush ring 20.
Due to the good formation condition that shallow embedding routine stratum has underground water deeper, reduce the generation of Sand, from
And substantially reduce the risk of replacement shield tail brush.Tunnel first is tunneled with shield machine at " well after first tunnel ", then excavates vertical wind
In the construction technology of well, shield machine water-rich sand layer tunnel during need replacing shield tail brush ring when, need first by tunnel into
Outlet air well head reinforces sealing and replaces shield tail brush ring again, and work progress is cumbersome, at high cost, it is also possible to influence the heading driver of shield machine
Phase；And there was only the protective effect of one of shield tail brush ring at this time, there are larger leakage and sprays during replacing shield tail brush ring
The risk gushed.
Summary of the invention
The object of the present invention is to provide a kind of present invention provide one kind in ventilating shaft in water-rich sand layer shield machine replace twice
The construction method of shield tail brush ring can replace twice shield tail brush ring simultaneously, improve construction efficiency.
The present invention is achieved by the following technical programs:
A kind of method of the shield machine replacement twice shield tail brush ring of water rich strata constructing tunnel, comprising the following steps:
1) patching is carried out to the section of jurisdiction for being used to support the soil body before replacing twice shield tail brush ring
After shield machine reaches predetermined position, to 10 endless tube pieces finish and engaging one another of having constructed after shield drive end unit
Sealing mortar depositing construction is carried out between outer peripheral surface and inside formation wall；
2) level of ground water within the scope of ventilating shaft is reduced
Several mouthfuls of dewatering wells of constructing within the scope of the ventilating shaft that will be constructed carry out precipitation；
3) shield machine, which tunnels forward, exposes the twice shield tail brush ring that shield drive end unit needs replacing
Section of jurisdiction is adjacent to piecewise in the lower half circle for being fixed on shield drive end unit shield shell inner wall, under composition is semicircular
Semicircle section of jurisdiction assembly；Then it is enclosed in multiple horizontally-supported oil cylinders in shield drive end unit one, selects the level at the several intervals in top
Support cylinder, and so that the tailpiece of the piston rod head assembly of the horizontally-supported oil cylinder is passed through corresponding auxiliary support bar respectively and support
On the section of jurisdiction end face of corresponding position, bottom lower half circle section of jurisdiction and upper support oil cylinder provide shield machine and tunnel counter-force；Shield machine
Continue driving and exposes the twice shield tail brush ring needed replacing；
4) the shield tail brush ring removing old shield tail brush ring and more renewing
4.1) inner peripheral surface, grease storehouse and the old shield tail of twice to be removed for first removing shield drive end unit shield shell upper semi-circle paint
Grease and mortar, then alternately replacement shield drive end unit shield shell upper semi-circle in several horizontally-supported oil cylinders and corresponding auxiliary
The muti-piece shield tail brush block that corresponding position is removed in corresponding region is vacated in the Support Position of support rod；Then respectively by the new shield of muti-piece
Ventral brush block adjacent side is weldingly fixed on the original position for the old shield tail brush of twice that shield drive end unit shield shell has been removed with mutually spelling, and constitutes two
The semicircle combination block of the new shield tail brush in road；By the friendship of horizontally-supported oil cylinders several for several times and corresponding auxiliary support bar Support Position
For being welded and fixed for the semicircle combination block of transformation and corresponding position, complete in shield drive end unit shield shell upper semi-circle inner peripheral surface region
The dismounting of the old shield tail brush of twice and being welded and fixed for the new shield tail brush semicircle combination block of twice；
4.2) the horizontally-supported oil cylinder of several symmetric arrays in shield drive end unit shield shell upper semi-circle is passed through respectively respectively
Corresponding auxiliary support bar is supported on the section of jurisdiction end face of corresponding position, according to the symmetric position of tunnel inner wall two sides, uses spelling
Several pieces sections of jurisdiction of the lower half circle of shield drive end unit outer tunnel inner wall are removed in installation in several times；Then respectively by the new shield tail brush block of muti-piece
Adjacent side is weldingly fixed on the original position of the old shield tail brush of twice of shield drive end unit shield shell lower half circle inner peripheral surface dismounting with mutually spelling；Twice
New shield tail brush block is respectively welded on the upper and lower semicircle for being fixed on shield drive end unit shield shell inner peripheral surface, constitutes spaced twice
New shield tail brush ring, the hand grease on the new shield tail brush ring of twice.
The purpose of the present invention can also be further realized by following technical measures.
Further, in the sealing mortar depositing construction of 10 endless tube pieces engaging one another described in step 1), shield drive end unit
Sealing is starched using polyurethane between outer endless tube piece outer circle and stratum, remaining 9 ring is all made of dual slurry sealing；The dual slurry is
The mixture of cement slurry and waterglass slurry.
Further, the depth of dewatering well is more than distance of the shield machine downside away from ground elevation in step 2).
Further, the structure of the auxiliary support bar in step 4.1) is the vertical end panel and intermediate horizontal circle at both ends
Steel construction piece made of steel-pipe welding.
The present invention has filled up in rich water soft stratum the construction technology blank for replacing twice shield tail brush, has good economy
Benefit and social benefit overcome diversity, the unstability on stratum because of metropolitan complexity, underground structure and pipeline
Give constructing tunnel bring difficult, shield drive end unit shield shell spillage leak provides safety guarantee when for soft stratum constructing tunnel
And construction technical method.The present invention, which breaches the prior art, can only replace the limitation of one of shield tail brush of shield drive end unit, can be simultaneously
Twice shield tail brush is replaced, the construction efficiency of tunnel piercing is improved, and provide safety guarantee, especially solves relatively long distance
Shield Construction Method Used shield tail safety technical problem.The present invention is using a variety of slip casting measures and reasonable grouting sequence to shield
Sealing mortar depositing construction is carried out between the 10 endless tube piece outer peripheral surfaces for having constructed finishing and engaging one another after drive end unit and stratum, and
The measure that dewatering well carries out precipitation is added in the ventilating shaft not excavated, solves the waterproof problem that tunnel goes out downcast mouth, and protect
The safety for having demonstrate,proved replacement shield tail brush operating environment makes to replace the faster and better completion of shield tail brush construction operation.
The advantages and features of the present invention will be illustrated and explained by the non-limitative illustration of preferred embodiment below,
These embodiments only provide as an example referring to attached drawing.
Detailed description of the invention
Fig. 1 is flow chart of the invention；
Fig. 2 is the schematic diagram that shield drive end unit of the invention exposes twice shield tail brush；
Fig. 3 is the top view of ventilating shaft and dewatering well position that not yet excavates on the ground in the tunnel of shield machine driving；
Fig. 4 is the process chart of step 4) of the present invention；
Fig. 5 is the structural schematic diagram of auxiliary support bar of the present invention.
Specific embodiment
The case history pair constructed with reference to the accompanying drawing with Foshan Line 2 Metro Nan Zhuanzhan~lake section Yong Zhan double track tunnel
The present invention is described further.
As shown in figure 3, Foshan Line 2 Metro Nan Zhuanzhan~lake section Yong Zhan, the long 2.29km of interval circuit (left line), completely
River, high-pressure gas, high voltage transmission line tower, groups of building are passed through, wide bright high speed etc. has a ventilating shaft 40 to also serve as 3# contact logical among tunnel
Road.For construction technology using the pattern for ventilating shaft 40 of constructing after first construction tunnel 100, the position of ventilating shaft 40 is South Lake section all fronts condition
Best position, it is existing that shield machine 10 occurs 10 tail portion spillage of shield machine when the label of driving to ring body 30 is ring or so
As tentatively judging that shield tail brush ring 20 damages, blocking polyurethane by 10 tail portion of shield machine, increase the injection of 10 tail portion grease of shield machine
The measures such as amount carry out leak stopping, and shield machine 10 tunnels label in a nearest shield tail brush 20 replacement point i.e. ring body 30 in spite of illness and is
Ring (hereinafter referred to as 528 rings).
As depicted in figs. 1 and 2, method of the invention, comprising the following steps:
1) patching is carried out to the section of jurisdiction 301 for being used to support tunnel 100 before replacing twice shield tail brush ring 20
It is finishing and each other to having constructed behind 10 tail portion of shield machine as shown in Fig. 2, after shield machine 10 reaches predetermined position
10 endless tube pieces 301 (518-527 ring) of linking carry out sealing mortar depositing construction between outer peripheral surface and stratum.Outside 10 tail portion of shield machine
Polyurethane sealing is used between 527 endless tube piece, 301 outer circle and stratum, remaining 9 ring is all made of dual slurry sealing；The dual slurry
The mixture starched for cement slurry and waterglass.
2) level of ground water in 40 range of ventilating shaft is reduced
As shown in figure 3,4 mouthfuls of dewatering wells 401 of constructing in 40 range of ventilating shaft that will be constructed carry out precipitation, dewatering well 401
Depth be more than distance of 10 downside of shield machine away from ground elevation be 28.8 meters, 100 construction surface of tunnel can be effectively reduced
Level of ground water, improve execution conditions.
3) shield machine 10, which tunnels forward, exposes the twice shield tail brush ring 20 that 10 tail portion of shield machine needs replacing
Section of jurisdiction 301 is adjacent in the lower half circle for being fixed on 10 tail portion shield shell inner wall of shield machine piecewise, forms semicircle
The lower half circle section of jurisdiction assembly 301A of shape.Then Monday encloses 16 water outside 10 tail portion of shield machine shown in the A such as Fig. 2 and Fig. 4
In flat support cylinder 102, the horizontally-supported oil cylinder 102 at 3 intervals in top is selected, label is respectively 1,3 and 15, and is made described
The tailpiece of the piston rod head assembly 103 of horizontally-supported oil cylinder 102 passes through corresponding vertical end by both ends as shown in Figure 5 respectively
The auxiliary support bar 50 that panel 501 and intermediate horizontal round steel pipe 502 are welded is supported on the three pieces section of jurisdiction 301 of corresponding position
On end face；Shield machine 10 continues driving and exposes the twice shield tail brush ring 20 needed replacing.
4) it removes old shield tail brush and more renews shield tail brush
4.1) inner peripheral surface, grease storehouse and the old shield tail of twice to be removed of 101 upper semi-circle of shield drive end unit shield shell are first removed
The grease and mortar painted, then shown in the H according to B~Fig. 4 of Fig. 4, successively alternately replacement label is respectively in the following order
1, the horizontally-supported oil cylinder 102 (B of Fig. 4) at 32 intervals, label are respectively 3,15 (C of Fig. 4), label respectively 1,15
(D of Fig. 4) and label are respectively the arrangement of 1,3 and 15 (E of Fig. 4) different intervals, 2 or 3 horizontally-supported oil cylinders being spaced
102, vacate the muti-piece shield tail brush block that corresponding position was cleared up and removed to 101 upper semi-circle regional area of shield drive end unit shield shell
201, the new shield tail brush block adjacent side of muti-piece is then weldingly fixed on the twice that shield drive end unit shield shell 101 has been removed with mutually spelling respectively
On the original position of old shield tail brush, the semicircle combination block of the new shield tail brush of twice is constituted.By 2~3 for several times horizontally-supported oil cylinders 102
And the welding of the new shield tail brush semicircle combination block of the checker and corresponding position of corresponding 50 Support Position of auxiliary support bar is solid
It is fixed, complete dismounting and the new shield of twice of the old shield tail brush ring of twice in 101 upper semi-circle inner peripheral surface region of shield drive end unit shield shell
The semicircle combination block of ventral brush is welded and fixed.
4.2) shown in the H by F~Fig. 4 of Fig. 4, by 3 in 101 upper semi-circle of shield drive end unit shield shell labels be respectively 1,
3 and 15 horizontally-supported oil cylinder 102 is supported on the section of jurisdiction 301 of corresponding position by corresponding auxiliary support bar 50 respectively
On end face.According to the symmetric position of 100 inner wall two sides of tunnel, the section of jurisdiction 301 of the left side position A1 is first removed with assembling machine, such as Fig. 4
F shown in；The section of jurisdiction 301 for removing the right side position A3 again, as shown in the G of Fig. 4；Finally remove the pipe of the position A2 of lower side position
Piece 301, as shown in the H of Fig. 4.In this way, 3 sections of jurisdiction 301 of the lower half circle in point 3 dismounting 10 tail portions of shield machine.Then distinguish
The twice that the new shield tail brush block adjacent side of muti-piece is weldingly fixed on the dismounting of 101 lower half circle inner peripheral surface of shield drive end unit shield shell with mutually spelling are old
On the original position of shield tail brush；The upper and lower semicircle for being fixed on 101 inner peripheral surface of shield drive end unit shield shell is respectively welded in the new shield tail brush block of twice
On, constitute the new shield tail brush ring 20 of spaced twice.The hand grease on the new shield tail brush ring 20 of twice completes twice shield tail
The replacement of brush ring 20.
In addition to the implementation, the present invention can also have other embodiments, all to use equivalent substitution or equivalent transformation shape
At technical solution, be all fallen within the protection domain of application claims.
Claims (5)
1. a kind of method of the shield machine replacement twice shield tail brush ring of water rich strata constructing tunnel, which is characterized in that including following
Step:
Patching is carried out to the section of jurisdiction for being used to support tunnel before replacement twice shield tail brush ring
After shield machine reaches predetermined position, to 10 endless tube piece peripheries finish and engaging one another of having constructed after shield drive end unit
Sealing mortar depositing construction is carried out between face and stratum；
Reduce the level of ground water within the scope of ventilating shaft
Several mouthfuls of dewatering wells of constructing within the scope of the ventilating shaft that will be constructed carry out precipitation；
Shield machine, which tunnels forward, exposes the twice shield tail brush ring that shield drive end unit needs replacing
Section of jurisdiction is adjacent in the lower half circle for being fixed on shield drive end unit shield shell inner wall piecewise, forms semicircular lower half circle
Section of jurisdiction assembly；Then it is enclosed in multiple horizontally-supported oil cylinders in shield drive end unit one, selects the horizontally-supported of the several intervals in top
Oil cylinder, and so that the tailpiece of the piston rod head assembly of the horizontally-supported oil cylinder is passed through corresponding auxiliary support bar respectively and be supported on pair
It answers on the section of jurisdiction end face of position, bottom lower half circle section of jurisdiction and upper support oil cylinder provide shield machine and tunnel counter-force；Shield machine continues
Driving exposes the twice shield tail brush ring needed replacing；
4) the shield tail brush ring removing old shield tail brush ring and more renewing
4.1) on inner peripheral surface, grease storehouse and the old shield tail brush ring of twice to be removed for first removing shield drive end unit shell upper semi-circle
Then grease and mortar alternately replace several horizontally-supported oil cylinders and corresponding auxiliary branch in shield drive end unit shell upper semi-circle
The muti-piece shield tail brush ring block that corresponding position is removed in corresponding region is vacated in the Support Position of strut；Then that muti-piece is new respectively
Shield tail brush ring block adjacent side is weldingly fixed on the original position for the old shield tail brush ring of twice that shield drive end unit shell has been removed with mutually spelling, group
At the semicircle combination block of the new shield tail brush ring of twice；By horizontally-supported oil cylinders several for several times and corresponding auxiliary support bar branch
Being welded and fixed for the new shield tail brush semicircle combination block of the checker and corresponding position of support position, completes shield drive end unit shell
The dismounting of the old shield tail brush ring of twice and being welded and fixed for the new shield tail brush semicircle combination block of twice in upper semi-circle inner peripheral surface region；
4.2) the horizontally-supported oil cylinder of several symmetric arrays in shield drive end unit shell upper semi-circle is passed through respectively and is respectively corresponded to
Auxiliary support bar be supported on the section of jurisdiction end face of corresponding position, according to the symmetric position of tunnel inner wall two sides, use assembling machine
Several pieces sections of jurisdiction of the lower half circle of shield drive end unit outer tunnel inner wall are removed in several times；Then respectively that the new shield tail brush ring block of muti-piece is adjacent
Side is weldingly fixed on the original position of the old shield tail brush ring of twice of shield drive end unit shell lower half circle inner peripheral surface dismounting with mutually spelling；Twice
New shield tail brush ring block is respectively welded on the upper and lower semicircle for being fixed on shield drive end unit shell inner peripheral surface, constitutes spaced
The new shield tail brush ring ring of twice, the hand grease on the new shield tail brush ring of twice.
2. the method for the shield machine replacement twice shield tail brush ring of water rich strata constructing tunnel in ventilating shaft as described in claim 1,
It is characterized by: in the sealing mortar depositing construction of 10 endless tube pieces engaging one another described in step 1), the outer ring of shield drive end unit
Sealing is starched using polyurethane between section of jurisdiction outer circle and stratum, remaining 9 ring is all made of dual slurry sealing.
3. the method for the shield machine replacement twice shield tail brush ring of water rich strata constructing tunnel in ventilating shaft as claimed in claim 2,
It is characterized by: the dual slurry is the mixture that cement slurry and waterglass are starched.
4. the method for the shield machine replacement twice shield tail brush ring of water rich strata constructing tunnel in ventilating shaft as described in claim 1,
It is characterized by: the depth of dewatering well is more than distance of the shield machine downside away from ground elevation in step 2.
5. the method for the shield machine replacement twice shield tail brush ring of water rich strata constructing tunnel in ventilating shaft as described in claim 1,
It is characterized by: the structure of the auxiliary support bar in step 4.1) is the vertical end panel and intermediate horizontal circle steel pipe welding at both ends
Steel construction piece made of connecing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479487.0A CN109630144B (en) | 2018-12-05 | 2018-12-05 | Method for replacing two shield tail brush rings of shield tunneling machine for water-rich stratum tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479487.0A CN109630144B (en) | 2018-12-05 | 2018-12-05 | Method for replacing two shield tail brush rings of shield tunneling machine for water-rich stratum tunnel construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109630144A true CN109630144A (en) | 2019-04-16 |
| CN109630144B CN109630144B (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811479487.0A Active CN109630144B (en) | 2018-12-05 | 2018-12-05 | Method for replacing two shield tail brush rings of shield tunneling machine for water-rich stratum tunnel construction |
Country Status (1)
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| CN (1) | CN109630144B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067565A (en) * | 2019-05-16 | 2019-07-30 | 中铁十二局集团有限公司 | A method of acting on exchanging shield ventral brush in rich water sandy silt soil stratum shield-tunneling construction |
| CN110541722A (en) * | 2019-09-30 | 2019-12-06 | 中铁第四勘察设计院集团有限公司 | Partial shield tunnel segment dismantling method and water stop structure in middle air shaft |
| CN110757397A (en) * | 2019-11-15 | 2020-02-07 | 沪东中华造船(集团)有限公司 | Method for replacing box body top plate of large pin wheel supporting ring of gantry crane |
| CN111648779A (en) * | 2020-05-09 | 2020-09-11 | 徐州工程学院 | Shield head system capable of effectively reducing surrounding rock disturbance |
| CN114033400A (en) * | 2021-11-25 | 2022-02-11 | 中铁隧道局集团有限公司 | Shield tail mechanism capable of replacing all shield tail brushes in hole and method for replacing shield tail brushes |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110067565A (en) * | 2019-05-16 | 2019-07-30 | 中铁十二局集团有限公司 | A method of acting on exchanging shield ventral brush in rich water sandy silt soil stratum shield-tunneling construction |
| CN110541722A (en) * | 2019-09-30 | 2019-12-06 | 中铁第四勘察设计院集团有限公司 | Partial shield tunnel segment dismantling method and water stop structure in middle air shaft |
| CN110757397A (en) * | 2019-11-15 | 2020-02-07 | 沪东中华造船(集团)有限公司 | Method for replacing box body top plate of large pin wheel supporting ring of gantry crane |
| CN111648779A (en) * | 2020-05-09 | 2020-09-11 | 徐州工程学院 | Shield head system capable of effectively reducing surrounding rock disturbance |
| CN111648779B (en) * | 2020-05-09 | 2021-07-27 | 徐州工程学院 | Shield head system capable of effectively reducing surrounding rock disturbance |
| CN114033400A (en) * | 2021-11-25 | 2022-02-11 | 中铁隧道局集团有限公司 | Shield tail mechanism capable of replacing all shield tail brushes in hole and method for replacing shield tail brushes |
| CN114033400B (en) * | 2021-11-25 | 2023-06-30 | 中铁隧道局集团有限公司 | Shield tail mechanism capable of replacing all shield tail brushes in hole and method for replacing shield tail brushes |
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