CN209385153U - Plugging structure at tunnel duct piece leak - Google Patents
Plugging structure at tunnel duct piece leak Download PDFInfo
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- CN209385153U CN209385153U CN201920005939.5U CN201920005939U CN209385153U CN 209385153 U CN209385153 U CN 209385153U CN 201920005939 U CN201920005939 U CN 201920005939U CN 209385153 U CN209385153 U CN 209385153U
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Abstract
The utility model relates to the plugging structures at a kind of tunnel duct piece leak, at leak at the splicing seams of section of jurisdiction, plugging structure includes: to be opened in the restriction away from one set distance of end at leak to terminate hole, limits termination hole and extends to from the elastic sealing gasket in the splicing seams of section of jurisdiction from the inner surface of section of jurisdiction；Fast Setting Cement Slurry is injected in hole to form limit cement structures to limiting to terminate；It is opened in the slip casting pin hole that at leak and interval is laid；The Grouting Pipe being inserted in slip casting pin hole blocks enclosed construction at leak to injection plugging material at leak by Grouting Pipe to be formed；And it is filled in the filleting structure in the gap after Grouting Pipe is extracted.The plugging structure of the utility model sets range of grouting prior to the both ends at leak, is then sent out using pin hole slip casting to progress slip casting closure at leak, and will not impact to the facing of section of jurisdiction in operating process, so that the quality and appearance in tunnel are effectively guaranteed.
Description
Technical field
The utility model relates to constructing tunnel engineering field, the plugging structure at a kind of tunnel duct piece leak is refered in particular to.
Background technique
Shield section is to be spliced into ring-type as precast concrete section of jurisdiction and support subterranean tunnel made of surrounding country rock, shield
Tunnel generally distance is remote, required section of jurisdiction substantial amounts.Therefore it prevents from that percolating water occurs in tunnel to be to guarantee shield tunnel quality
Top priority, and the splicing seams between adjacent section of jurisdiction are even more that the most direct position of percolating water occurs.
Shield tunnel anti-seep water method is realized by installing elastic sealing gasket between section of jurisdiction back-grouting and section of jurisdiction additional.
But far based on shield tunnel distance, section of jurisdiction joining quality problem can inevitably occur and generate the characteristics of splicing tubes piece substantial amounts
Percolating water phenomenon at splicing seams.
In addition, the disturbance generated during shield-tunneling construction, can also make the splicing between section of jurisdiction that different degrees of deformation occur,
Shield tunnel quality is influenced, security risk is caused.
Existing processing method is that grouting is sealed at the position to percolating water, is blocked at percolating water, but the sealing
The grout leaking that can constantly trickle along the length direction of the seam of section of jurisdiction is starched, seepage problem can not be eradicated.Therefore, in the construction process how
Particularly important effectively is become with processing for the discovery of percolating water at the splicing seams of section of jurisdiction.
Utility model content
The purpose of the utility model is to overcome the defect of the prior art, the closure knot at a kind of tunnel duct piece leak is provided
Structure solves the problems, such as that existing sealing grouting method can not eradicate seepage problem and can trickle grout leaking and influence the facing of section of jurisdiction.
Realizing the technical solution of above-mentioned purpose is:
The utility model provides the plugging structure at a kind of tunnel duct piece leak, and the splicing of section of jurisdiction is located at the leak
At seam, the plugging structure includes:
It is opened in the restriction away from one set distance of end at leak and terminates hole, the restriction terminates hole out of described section of jurisdiction
Surface extends at the elastic sealing gasket in the splicing seams of section of jurisdiction；
It is terminated to the restriction and injects Fast Setting Cement Slurry in hole to form limit cement structures；
It is opened in the slip casting pin hole that at the leak and interval is laid；
The Grouting Pipe being inserted in the slip casting pin hole, by the Grouting Pipe to injection plugging material at the leak with
It is formed and blocks enclosed construction at the leak；And
The filleting structure being filled in the gap after the Grouting Pipe is extracted.
The plugging structure construction procedure of the utility model is simple, and strong operability can effectively solve percolating water in tunnel
Problem.It sets range of grouting prior to the both ends at leak, is then sent out using pin hole slip casting to progress slip casting closure at leak, and
The facing of section of jurisdiction will not be impacted in operating process, so that the quality and appearance in tunnel are effectively guaranteed.This is practical
Novel plugging structure is not related to big machinery, and in the limited situation of tunnel space, construction safety is reliable.
Plugging structure at the utility model tunnel duct piece leak further improvement lies in that, it is described to limit the hole for terminating hole
Diameter is 6mm.
Plugging structure at the utility model tunnel duct piece leak further improvement lies in that, be formed by limit cement knot
The end of structure is in being formed with plug end in the piece groove of the section of jurisdiction.
Plugging structure at the utility model tunnel duct piece leak further improvement lies in that, the aperture of the slip casting pin hole
For 8mm, hole depth is 50mm to 80mm.
Plugging structure at the utility model tunnel duct piece leak further improvement lies in that, the end of the slip casting pin hole
Gap is installed between the elastic sealing gasket.
Plugging structure at the utility model tunnel duct piece leak further improvement lies in that, the slip casting pin hole and described
Dense packing effect has quick-drying mortar in gap between Grouting Pipe.
Plugging structure at the utility model tunnel duct piece leak further improvement lies in that, be in "-" type at the leak
Region, described limit terminate the both ends that hole is laid in the "-" type region, and the slip casting pin hole is interregional along the "-" type
Every laying.
Plugging structure at the utility model tunnel duct piece leak further improvement lies in that, be in T font at the leak
Region, described limit terminate three ends that hole is laid in T font region, and the slip casting pin hole is along T font area
It lays at domain interval.
Detailed description of the invention
Fig. 1 is that the plugging structure at the leak of the utility model tunnel duct piece is set to the knot at the leak of endless tube on piece longitudinal joint
Structure schematic diagram.
Fig. 2 is the partial enlargement diagram in Fig. 1 at A1.
Fig. 3 is the structure that the plugging structure at the leak of the utility model tunnel duct piece is set at the leak in T font region
Schematic diagram.
Fig. 4 is the partial enlargement diagram in Fig. 3 at A2.
Fig. 5 be the leak of the utility model tunnel duct piece at plugging structure in slip casting pin hole cross-sectional view.
Fig. 6 is the partial enlargement diagram in Fig. 5 at B1.
Fig. 7 terminates the cross-sectional view in hole to limit in the plugging structure at the leak of the utility model tunnel duct piece.
Fig. 8 is the partial enlargement diagram in Fig. 7 at B2.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
Refering to fig. 1, the utility model provides the plugging structure at tunnel duct piece leak, and the end cloth at leak is limited
Surely it terminates hole and determines range of grouting, slip casting closure is then carried out to leakage pool using pin hole slip casting method, while in full mistake of constructing
The section of jurisdiction Cheng Jinhang wall ornamentation face protection, so that the quality in tunnel can be effectively ensured with appearance.With reference to the accompanying drawing to this reality
It is illustrated with the plugging structure at the leak of novel tunnel section of jurisdiction.
Refering to fig. 1, it is shown that the plugging structure at the utility model tunnel duct piece leak is set to endless tube on piece longitudinal joint
Structural schematic diagram at leak.Referring to Fig.2, showing the partial enlargement diagram in Fig. 1 at A1.Below with reference to Fig. 1 and Fig. 2,
Plugging structure at the utility model tunnel duct piece leak is illustrated.
As depicted in figs. 1 and 2, the plugging structure at the tunnel duct piece leak of the utility model is for blocking on section of jurisdiction 11
112 at leak, 112 are located at the splicing seams 111 of section of jurisdiction 11 at the leak, and the splicing seams 111 of section of jurisdiction 11 include same endless tube piece 11
On each section of jurisdiction block between abutment joint namely abutment joint namely circumferential weld between longitudinal joint and adjacent section of jurisdiction 11；
In conjunction with shown in Fig. 5 and Fig. 7, the plugging structure of the utility model include limit terminate hole 21, limit cement structures 22,
Slip casting pin hole 23, Grouting Pipe 24, enclosed construction 25 and filleting structure, restriction termination hole 21 is opened in be set away from end one at leak
Set a distance, the set distance are not less than 150mm, and set distance is preferably 150mm, limit and terminate inner surface of the hole 21 from section of jurisdiction 11
It extends at the elastic sealing gasket 113 in 11 splicing seams 111 of section of jurisdiction, which sets close to the outer surface of section of jurisdiction 11
It sets；Limit cement structures 22 are formed from terminating the Fast Setting Cement Slurry injected in hole 21 to restriction, are opened up limiting termination hole 21
Afterwards, hole 21 is terminated to the restriction using accelerated cement and the restriction terminates and carries out filleting processing in 21 range of hole, to form limit
Position cement structures 22, the range of grouting for defining the slip casting pin hole 23 of subsequent setting by limiting cement structures 22, so as to keep away
Exempt from the problem of slurries are along the trickling grout leaking of splicing seams 111 when using at grout sealing leak.Slip casting pin hole 23 is opened at leak
112 and interval lay, the slip casting pin hole 23 along splicing seams 111 be spaced be arranged；Grouting Pipe 24 is inserted in slip casting pin hole 23, is led to
Grouting Pipe 24 is crossed to 112 injection plugging materials at leak to form the enclosed construction 25 for blocking at leak 112, blocks material in perfusion
It when material, needs to block closely knit, and ensures not spillage, can be avoided and the facing of the inner surface of section of jurisdiction 11 is had an impact.It is blocking
After good, Grouting Pipe 24 is extracted, gap is formd in enclosed construction 25 after extracting Grouting Pipe 24, is then filled out using caulking material
Fill in the gap to form filleting structure, and using filleting structure the surface of splicing seams 111 do moditied processing formed it is flat
Sliding finish coat.
The plugging structure construction procedure of the utility model is simple, and strong operability can effectively solve percolating water in tunnel
Problem.It sets range of grouting prior to the both ends at leak, is then sent out using pin hole slip casting to progress slip casting closure at leak, and
The facing of section of jurisdiction will not be impacted in operating process, so that the quality and appearance in tunnel are effectively guaranteed.This is practical
Novel plugging structure is not related to big machinery, and in the limited situation of tunnel space, construction safety is reliable.
As a better embodiment of the utility model, as shown in Figure 7 and Figure 8, limits and terminate 21 aperture of hole as 6mm.
Hole depth is the distance between from the inner surface of section of jurisdiction 11 to elastic sealing gasket 113.Rapid hardening water is injected in hole 21 terminating to restriction
When mud, it should need to be perfused closely knit.
Further, the end for being formed by limit cement structures 22 is stifled in being formed in the piece groove 114 of section of jurisdiction 21
Head end 221.Namely to when limiting injection accelerated cement in termination hole 21, accelerated cement is enabled to be perfused to piece groove 114, so that
Plug end 221 is formed in piece groove 114.The trapezoidal shape in the section of piece groove 114, the notch of piece groove 114
Size is greater than the size of slot bottom, and the shape of plug end 221 also trapezoidal shape, and the surface of plug end 221 is away from piece groove 114
Notch have a certain distance, size of the plug end 221 close to the surface of notch is greater than the size close to the surface of slot bottom.It utilizes
112 end setting limit cement structures 22, have limited the closure range at 112 at leak, and limit cement knot at leak
The end of structure 22 is formed with the plug end 221 in piece groove 114, and the setting of plug end 221 can prevent subsequent perfusion
Plugging material trickle along splicing seams 111, and then the facing of 11 inner surface of section of jurisdiction will not be had an impact, will not be to non-leak
Piece have an impact, ensure that the quality and appearance in tunnel.
As another better embodiment of the utility model, in conjunction with shown in Fig. 5 and Fig. 6, the aperture of slip casting pin hole 23 is
8mm, hole depth are 50mm to 80mm.Preferably, being installed with gap 26 between the end and elastic sealing gasket 113 of slip casting pin hole 23.Benefit
With staying the gap set 26 to be irrigated plugging material towards at leak 112.Preferably plugging material is that EAA epoxy 2# starches mortar.
Further, dense packing effect has quick-drying mortar in the gap between slip casting pin hole 23 and Grouting Pipe 24.Utilize quick-drying
Mortar fills the gap of Grouting Pipe 24 and slip casting pin hole 23, tamps closely knit and surfacing.
112 be in "-" type region at the tunnel duct piece leak of the utility model, as shown in Figure 1, example shown in FIG. 1 is leakage
112 are located on the longitudinal joint with endless tube piece 11 at water, and 112 are also possible on circumferential weld be in "-" type region at certain leak.
For "-" type region its there are two end, be laid at the both ends in "-" type region so will limit and terminate hole 21, in conjunction with Fig. 2
Shown, limiting termination hole 21 away from the end in "-" type region has a set distance, and slip casting pin hole 23 is interregional every cloth along "-" type
It is terminated between hole 21 if slip casting pin hole 23 is located at two restrictions.
As shown in figure 3, in another embodiment, 112 be in T font region at leak, as shown in connection with fig. 5, limit and terminate hole
21 are laid in three ends in T font region, and slip casting pin hole 23 is interregional every laying along T font.Laying T font region
When, it should be ensured that transverse area and vertical region are laid with slip casting pin hole 23.
The work progress of plugging structure at the tunnel duct piece leak of the utility model are as follows:
At inspection leak: based on light in shield tunnel is weak and different sections outside the rock-soil layer property of water-bearing difference, cannot be only
It is determined at percolating water by section of jurisdiction wall surface phenomenon.It need to carefully be checked using glare light electric torch to the suspicious place of percolating water,
Emphasis inspection section of jurisdiction wall soil dirt irregular distribution area, section of jurisdiction wall spot area, section of jurisdiction wall humid region etc..
It can spread and cement in the suspicious area of percolating water when necessary, be further determined that according to the otherness of the hardened degree of different location
Whether percolating water situation is had.
It pre-processes at percolating water: after thering is percolating water to happen at the splicing seams of detection section of jurisdiction to be checked, being cleaned using wire brush
Dirt and floating dust at splicing seams.Pay attention at this time cleaning region need to be extended to leakage water area around and to section of jurisdiction splicing seams around into
Row checks, guards against fish that has escape the net.
Step 3: injected hole is arranged: position occurs according to percolating water, leakage water area can be divided into same endless tube piece splicing seams
" block " and face in endless tube piece splicing seams " block T ".
One block: hole is terminated in the restriction that grouting is respectively laid at leakage both ends outside leakage 150mm range；Using
Accelerated cement terminates filleting within the scope of hole and handles to limiting to terminate hole and limit, and when filleting should be noted the former piece groove of exposing；?
Leakage lays slip casting pin hole by 35mm~40mm spacing.
The restriction terminates hole aperture 6mm, and hole is deep to elastic sealing gasket, and cleaning is pressed into EAA epoxy 2# after limiting termination hole
Starch mortar, closing, which limits, terminates hole, block need it is closely knit, it is ensured that not spillage when slip casting.
The slip casting pinhole aperture 8mm, hole depth 50mm~80mm are embedded to slip casting aluminum pipe, slip casting aluminium after cleaning slip casting pin hole
Gap is filled using quick-drying mortar between pipe and slip casting pin hole, and tamping needs closely knit and surfacing.
The block T: it if (1) leakage closes on same endless tube piece splicing seams and faces endless tube piece splicing seams intersection, need to close on
Leakage faces endless tube piece splicing seams both ends with endless tube piece splicing seams and leakage and respectively lays slip casting restriction termination hole composition " T word note
Starch region ".Leakage face endless tube piece splicing seams both ends limit terminate hole lay answer it is each apart from leakage and with endless tube piece splicing seams
Not less than 150mm.It terminates hole and " T word slip casting region " filleting using accelerated cement and handles to limiting, when filleting should be noted exposing
Former piece groove；Slip casting pin hole is laid by 30mm~35mm spacing in leakage, is guaranteed at same endless tube piece splicing seams at this time most
A slip casting pin hole is laid less.
The restriction terminates hole aperture 6mm, and hole is deep to elastic sealing gasket, and cleaning is pressed into EAA epoxy 2# after limiting termination hole
Starch mortar, closing, which limits, terminates hole, block need it is closely knit, it is ensured that not spillage when slip casting.
The slip casting pinhole aperture 8mm, hole depth 50mm~80mm are embedded to slip casting aluminum pipe, slip casting aluminium after cleaning slip casting pin hole
Gap is filled using quick-drying mortar between pipe and slip casting pin hole, and tamping needs closely knit and surfacing.
(2) the arrangement treating method such as other leakage injected holes is the same as " block ".
Slip casting blocks at percolating water: injection EAA epoxy 2# slurry, sequentially slip casting, 0.3~0.4Mpa of grouting pressure reach note
Stopped pipe waits coagulating after slurry pressure.
It if spillage situation occurs when slip casting, need to handle in time, avoid slurries from polluting section of jurisdiction, and carry out splicing seams two sides
Facing protection.
If occurring the percolating water situation outside range of grouting during slip casting blocks, need to expand slip casting closure range, it is more
Until secondary circulation ensures splicing seams no longer percolating water.
Slip casting effect inspection and processing: stopped pipe carries out orifice tube inspection after 8~12 hours solidifying, such as orifice tube slurry bubble insatiable hunger
It is full, then it carries out secondary or slip casting is repeated several times.
Stopped pipe tears pipe open after 3~5 days solidifying and does seam face moditied processing after solidifying.
The shield tunnel, which stops water-leaking plasma construction procedure overall process, need to carry out the facing protection of section of jurisdiction wall, it is ensured that apply
Damage problem in section of jurisdiction does not occur during work, guarantees section of jurisdiction quality.
The position that the shield tunnel stops restriction termination hole in water-leaking plasma construction procedure should leak regimen according to practical
Condition does corresponding change in location.
The cleaning that the shield tunnel stops restriction termination hole and slip casting pin hole in water-leaking plasma construction procedure can be used carefully
Flexible plastic tube manually provides wind-force cleaning hole intraclast, and flowing water flushing can be used when necessary.
The utility model has the following beneficial effects:
Constructing operation step is simple, strong operability, can effectively solve leakage problem in shield tunnel.
Work progress is not related to big machinery, and in the limited situation in shield tunnel space, construction safety is reliable.
Construction overall process carries out the protection of section of jurisdiction wall ornamentation face, and the quality of shield tunnel be effectively ensured can with appearance.
Combine figure embodiment that the utility model is described in detail above, those skilled in the art can root
Many variations example is made to the utility model according to above description.Thus, certain details in embodiment should not constitute practical to this
Novel restriction, the utility model will be using the ranges that the appended claims define as the protection scope of the utility model.
Claims (8)
1. the plugging structure at a kind of tunnel duct piece leak, it is located at the splicing seams of section of jurisdiction at the leak, which is characterized in that institute
Stating plugging structure includes:
It is opened in the restriction away from one set distance of end at leak and terminates hole, the restriction terminates inner surface of the hole from the section of jurisdiction
It extends at the elastic sealing gasket in the splicing seams of section of jurisdiction；
It is terminated to the restriction and injects Fast Setting Cement Slurry in hole to form limit cement structures；
It is opened in the slip casting pin hole that at the leak and interval is laid；
The Grouting Pipe being inserted in the slip casting pin hole, by the Grouting Pipe to injection plugging material at the leak to be formed
Block enclosed construction at the leak；And
The filleting structure being filled in the gap after the Grouting Pipe is extracted.
2. the plugging structure at tunnel duct piece leak as described in claim 1, which is characterized in that described to limit the hole for terminating hole
Diameter is 6mm.
3. the plugging structure at tunnel duct piece leak as claimed in claim 1 or 2, which is characterized in that be formed by limit water
The end of mud structure is in being formed with plug end in the piece groove of the section of jurisdiction.
4. the plugging structure at tunnel duct piece leak as described in claim 1, which is characterized in that the aperture of the slip casting pin hole
For 8mm, hole depth is 50mm to 80mm.
5. the plugging structure at tunnel duct piece leak as described in claim 1, which is characterized in that the end of the slip casting pin hole
Gap is installed between the elastic sealing gasket.
6. the plugging structure at tunnel duct piece leak as described in claim 1, which is characterized in that the slip casting pin hole and described
Dense packing effect has quick-drying mortar in gap between Grouting Pipe.
7. the plugging structure at tunnel duct piece leak as described in claim 1, which is characterized in that be in "-" type at the leak
Region, described limit terminate the both ends that hole is laid in the "-" type region, and the slip casting pin hole is interregional along the "-" type
Every laying.
8. the plugging structure at tunnel duct piece leak as described in claim 1, which is characterized in that be in T font at the leak
Region, described limit terminate three ends that hole is laid in T font region, and the slip casting pin hole is along T font area
It lays at domain interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920005939.5U CN209385153U (en) | 2019-01-02 | 2019-01-02 | Plugging structure at tunnel duct piece leak |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920005939.5U CN209385153U (en) | 2019-01-02 | 2019-01-02 | Plugging structure at tunnel duct piece leak |
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| Publication Number | Publication Date |
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| CN209385153U true CN209385153U (en) | 2019-09-13 |
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ID=67863558
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920005939.5U Active CN209385153U (en) | 2019-01-02 | 2019-01-02 | Plugging structure at tunnel duct piece leak |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500123A (en) * | 2019-09-24 | 2019-11-26 | 南京康泰建筑灌浆科技有限公司 | The leakage plugging method of duct pieces of shield tunnel bolt hole |
| CN110500117A (en) * | 2019-09-24 | 2019-11-26 | 南京康泰建筑灌浆科技有限公司 | The antiseepage method for blocking of shield duct piece injected hole |
| CN112593981A (en) * | 2020-12-10 | 2021-04-02 | 北京市政路桥科技发展有限公司 | Water leakage treatment method for segment splicing seam of shield section |
| CN113356881A (en) * | 2021-07-15 | 2021-09-07 | 上海地铁维护保障有限公司工务分公司 | Segment deep grouting method for treating tunnel leakage diseases |
-
2019
- 2019-01-02 CN CN201920005939.5U patent/CN209385153U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500123A (en) * | 2019-09-24 | 2019-11-26 | 南京康泰建筑灌浆科技有限公司 | The leakage plugging method of duct pieces of shield tunnel bolt hole |
| CN110500117A (en) * | 2019-09-24 | 2019-11-26 | 南京康泰建筑灌浆科技有限公司 | The antiseepage method for blocking of shield duct piece injected hole |
| CN110500117B (en) * | 2019-09-24 | 2021-08-31 | 南京康泰建筑灌浆科技有限公司 | Anti-seepage plugging method for grouting hole of shield segment |
| CN110500123B (en) * | 2019-09-24 | 2024-02-02 | 南京康泰建筑灌浆科技有限公司 | Leakage blocking method for shield tunnel segment bolt hole |
| CN112593981A (en) * | 2020-12-10 | 2021-04-02 | 北京市政路桥科技发展有限公司 | Water leakage treatment method for segment splicing seam of shield section |
| CN112593981B (en) * | 2020-12-10 | 2023-02-14 | 北京市政路桥科技发展有限公司 | Water leakage treatment method for segment splicing seam of shield section |
| CN113356881A (en) * | 2021-07-15 | 2021-09-07 | 上海地铁维护保障有限公司工务分公司 | Segment deep grouting method for treating tunnel leakage diseases |
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