CN109707411A - A kind of technique of tunnel grouting construction - Google Patents
A kind of technique of tunnel grouting construction Download PDFInfo
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- CN109707411A CN109707411A CN201910159014.0A CN201910159014A CN109707411A CN 109707411 A CN109707411 A CN 109707411A CN 201910159014 A CN201910159014 A CN 201910159014A CN 109707411 A CN109707411 A CN 109707411A
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Abstract
The invention discloses a kind of techniques of tunnel grouting construction, are related to constructing tunnel field, and the situation slip casting that range is larger or depth of coming to nothing is deeper that mainly solves the problems, such as the larger preliminary bracing of water percolating capacity to come to nothing is difficult, specifically includes the following steps: the drainage of S1, pipe laying；S2, embedded Grouting Pipe；S3, concrete mixing；S4, concrete backfill after concrete mixing is good, carry out pumping backfill using delivery pump, and concrete is backfilled from low to high, primary backfill thickness≤50cm；S5, monitoring measurement, survey crew reinforces monitoring to tunnel arch top settlement, headroom change using total station, after slip casting, reinforces measuring first branch deformation monitoring using total station；S6, slip casting effect inspection；Construction method of the present invention is simple, and slip casting effect is good, comes to nothing the situation that range is larger or depth of coming to nothing is deeper, can accelerate construction progress for the larger preliminary bracing of water percolating capacity, and leakage, water burst is overcome to influence.
Description
Technical field
The present invention relates to constructing tunnel field, the technique of specifically a kind of tunnel grouting construction.
Background technique
Tunnel is the engineering works being embedded in stratum, is a kind of form of human use's underground space.Tunnel can divide
For traffic tunnel, Hydraulic Tunnel, municipal tunnel, mining tunnel, the structure in tunnel includes main building object and auxiliary device two
Point.Main building object is made of barrel and portal, and auxiliary device includes that refuge chamber, fire fighting device, emergency communication and guarded drainage are set
It applies, there are also special ventilation and lighting apparatus for major long tunnel, according to the length in tunnel: short tunnel (railway tunnel regulation: L≤
500m；Vcehicular tunnel provides: L≤500m), (railway tunnel provides medium tunnel: 500 < L≤3000m；Vcehicular tunnel regulation:
500 < L≤1000m), long tunnel (railway tunnel regulation: 3000 < L≤10000m；Vcehicular tunnel provides 1000 < L≤3000m) and
Super long tunnel (railway tunnel regulation: L > 10000m；Vcehicular tunnel regulation: L > 3000m) (according to JTGTD70-2010 vcehicular tunnel
Design details regulation).
And in existing constructing tunnel, coming to nothing in face of the larger preliminary bracing of water percolating capacity, range is larger or depth of coming to nothing is deeper
Situation, slip casting effect is poor, greatly reduces construction speed, is unfavorable for the work in later period, therefore proposes a kind of tunnel grouting construction
Technique solve the above problems.
Summary of the invention
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of technique of tunnel grouting construction
Problem.
To achieve the above object, the invention provides the following technical scheme:
A kind of technique of tunnel grouting construction, for the larger preliminary bracing of water percolating capacity come to nothing range it is larger or come to nothing depth compared with
Deep situation, specifically includes the following steps:
S1, pipe laying drainage；
S2, embedded Grouting Pipe；
S3, concrete mixing, fill concrete use C25 concrete or C25 gunite concrete, mix in mixing station concentration
System；
S4, concrete backfill, survey crew reinforces tunnel arch top settlement, headroom change using total station in backfilling process
Monitoring, prevent disposable slip casting it is too fast it is excessive lead to steel frame deformation, after same slip casting, using total station reinforce to first branch become
Shape monitoring measurement；
S5, monitoring measurement；
S6, slip casting effect inspection.
As a further solution of the present invention: in step S1, specially for percolating water and the biggish place of water burst, burying
Water-permeable pipe is drained, and permeable pipe diameter is 100mm, and installs water check valve, is drained to infiltration water.
As a further solution of the present invention: in step S2, specially range of coming to nothing is larger or depth higher depth of coming to nothing,
Bury multiple Grouting Pipes, the diameter of Grouting Pipe is 140mm, it is provided with exhaust pipe between Grouting Pipe, air slit diameter 108mm,
Exhaust pipe also serves as Grouting Pipe and observation tube uses, and Grouting Pipe connection must securely, and hoop-linked buckle is arranged in connector, prevents slip casting pipe fitting
It falls off and hurts sb.'s feelings；When slip casting operation, operating personnel should use dust-proof apparatus and rubber gloves.
As a further solution of the present invention: in step S4, specially concrete backfill after concrete mixing is good, is used
Delivery pump carries out pumping backfill, and concrete is backfilled from low to high, and no more than 50cm, when backfill pays attention to primary backfill thickness
Observation.
As a further solution of the present invention: in step S6, after the completion of specially backfilling, using geological radar and hammering method
It is detected, checks that slip casting effect, slip casting drilling machine and inspection hole answer packing closely knit using bore extracting core process when necessary.
Application of the technique of tunnel grouting construction as mentioned in constructing tunnel be as a further solution of the present invention:
Compared with prior art, the beneficial effects of the present invention are: construction method of the present invention is simple, slip casting effect is good, for
The larger preliminary bracing of water percolating capacity is come to nothing the situation that range is larger or depth of coming to nothing is deeper, can be accelerated construction progress, overcome leakage,
Water burst influences.
Detailed description of the invention
Fig. 1 is the schematic diagram of Grouting Pipe installation in the present invention.
Fig. 2 is Construction Principle schematic diagram of the invention.
In figure: 1- Grouting Pipe, 2- exhaust pipe.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Please refer to Fig. 1~2, in the embodiment of the present invention, a kind of technique of tunnel grouting construction, for water percolating capacity larger initial stage
Supporting is come to nothing the situation that range is larger or depth of coming to nothing is deeper, and the specific method is as follows:
S1, pipe laying drainage, for percolating water and the biggish place of water burst, embedded water-permeable pipe is drained, permeable pipe diameter
For 100mm, and water check valve is installed, infiltration water is drained；Furthermore injected hole is that drilling is embedded, according to the big cell of cavity areas
It does not lay, position of continuously coming to nothing, circumferential spacing 1m, longitudinal pitch 0.8m；It independently comes to nothing smaller part position, once grouting is completed, empty
The larger position in hole, preliminary bracing is come to nothing, and range is larger or depth higher depth of coming to nothing, and the gunite concrete for range of coming to nothing all is dug
Place, at chisel after according to depth determinations come to nothing be using extension multilayer mesh sheet gunite concrete or single layer mesh sheet gunite concrete
Method of disposal, until closely knit；
S2, or come to nothing depth higher depth larger in range of coming to nothing, bury four Grouting Pipes 1, and the diameter of Grouting Pipe 1 is
140mm, such as Fig. 1 are provided with exhaust pipe 2 between Grouting Pipe 1, and 2 diameter of exhaust pipe is 108mm, and exhaust pipe 2 also serves as Grouting Pipe and sight
Examine pipe use；Grouting Pipe connection must securely, and hoop-linked buckle is arranged in connector, prevents Grouting Pipe Joint's falling off from hurting sb.'s feelings；When slip casting operation,
Operating personnel should use dust-proof apparatus and rubber gloves；
S3, concrete mixing, fill concrete use C25 concrete or C25 gunite concrete, mix in mixing station concentration
System；
S4, concrete backfill after concrete mixing is good, carry out pumping backfill using delivery pump, concrete from low to high into
Row backfill, no more than 50cm, when backfill, pays attention to observing primary backfill thickness；
S5, monitoring measurement, survey crew reinforces prison to tunnel arch top settlement, headroom change using total station in backfilling process
Control, prevent disposable slip casting it is too fast it is excessive lead to steel frame deformation, after same slip casting, using total station reinforce to first branch deform
Monitoring measurement；Running check and cleaning Grouting Pipe, prevent from blocking, find the problem, should handle in time；
It after the completion of S6, backfill, is detected using geological radar and hammering method, when necessary using bore extracting core process to slip casting
Effect is checked that slip casting drilling machine and inspection hole answer packing closely knit.
Embodiment 2
Please refer to Fig. 1~2, in the embodiment of the present invention, a kind of technique of tunnel grouting construction, for water percolating capacity larger initial stage
Supporting is come to nothing the situation that range is larger or depth of coming to nothing is deeper, and the specific method is as follows:
S1, pipe laying drainage, for percolating water and the biggish place of water burst, embedded water-permeable pipe is drained, permeable pipe diameter
For 100mm, and water check valve is installed, infiltration water is drained；Furthermore injected hole is that drilling is embedded, according to the big cell of cavity areas
It does not lay, position of continuously coming to nothing, circumferential spacing 1m, longitudinal pitch 0.8m；It independently comes to nothing smaller part position, once grouting is completed, empty
The larger position in hole, preliminary bracing is come to nothing, and range is larger or depth higher depth of coming to nothing, and the gunite concrete for range of coming to nothing all is dug
Place, at chisel after according to depth determinations come to nothing be using extension multilayer mesh sheet gunite concrete or single layer mesh sheet gunite concrete
Method of disposal, until closely knit；
S2, or come to nothing depth higher depth larger in range of coming to nothing, bury three Grouting Pipes 1, and the diameter of Grouting Pipe 1 is
140mm is provided with several exhaust pipes 2 between Grouting Pipe 1, and 2 diameter of exhaust pipe is 108mm, and exhaust pipe 2 also serves as Grouting Pipe and sight
Examine pipe use；Grouting Pipe connection must securely, and hoop-linked buckle is arranged in connector, prevents Grouting Pipe Joint's falling off from hurting sb.'s feelings；When slip casting operation,
Operating personnel should use dust-proof apparatus and rubber gloves；
S3, concrete mixing, fill concrete use C25 concrete or C25 gunite concrete, mix in mixing station concentration
System；
S4, concrete backfill after concrete mixing is good, carry out pumping backfill using delivery pump, concrete from low to high into
Row backfill, no more than 45cm, when backfill, pays attention to observing primary backfill thickness；
S5, monitoring measurement, survey crew reinforces prison to tunnel arch top settlement, headroom change using total station in backfilling process
Control, prevent disposable slip casting it is too fast it is excessive lead to steel frame deformation, after same slip casting, using total station reinforce to first branch deform
Monitoring measurement；Running check and cleaning Grouting Pipe, prevent from blocking, find the problem, should handle in time；
It after the completion of S6, backfill, is detected using geological radar and hammering method, when necessary using bore extracting core process to slip casting
Effect is checked that slip casting drilling machine and inspection hole answer packing closely knit.
In addition, should be noted that following item when construction: drilling should be carried out strictly by given hole location；It is passed through in boring procedure
Perseverance observes pore-creating trend, should be corrected in time when discovery has relatively large deviation；Platform should be first checked when drilling on platform
Rigidity and stability, it is ensured that brill can be applied when no any security risk on platform；Peace should be carried out when drillhole height is excessively high
Full protection measure；Notice that whether there is or not cracks on observation gunite concrete surface when fill concrete and slip casting, and implements measures to ensure that note
Starch effect；Security protection articles should be worn when construction, and full-time security official is set and observes surrouding rock deformation situation at any time；Grouting Pipe
1 and when exhaust pipe embedded should be secured firmly on the inside of groove, pipeline should be connect well with water outlet, and the fast hard water of use expansion
Mud is blocked；Place should be cleared up in time after the completion of fill concrete and slip casting operation；Used mechanical equipment is pressed
It is required that playback, to meet the requirement of civilized construction.
Embodiment 3
Application of the technique of tunnel grouting construction as described in Example 1 in constructing tunnel.
The working principle of the invention is: embedded water-permeable pipe is discharged after being collected water flow, installation backfill Grouting Pipe 1, row
Tracheae 2, backfill Grouting Pipe 1 use delivery pump pipe, and exhaust pipe 2 also serves as observation tube, and pump concrete is backfilled.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of technique of tunnel grouting construction, coming to nothing for the larger preliminary bracing of water percolating capacity, range is larger or depth of coming to nothing is deeper
The case where, which is characterized in that specifically includes the following steps:
S1, pipe laying drainage；
S2, embedded Grouting Pipe；
S3, concrete mixing；
S4, concrete backfill；
S5, monitoring measurement；
S6, slip casting effect inspection.
2. the technique of tunnel grouting according to claim 1 construction, which is characterized in that in step S1, for percolating water and
The biggish place of water burst, embedded water-permeable pipe are drained, and permeable pipe diameter is 100mm, and installs water check valve, are carried out to infiltration water
Drainage.
3. the technique of tunnel grouting according to claim 2 construction, which is characterized in that in step S2, come to nothing range compared with
Big or depth higher depth of coming to nothing, is buried multiple Grouting Pipes (1), and the diameter of Grouting Pipe (1) is 140mm, and Grouting Pipe is arranged between (1)
Have exhaust pipe (2), exhaust pipe (2) diameter is 108mm, and exhaust pipe (2) also serves as Grouting Pipe and observation tube uses.
4. the technique of tunnel grouting construction according to claim 3, which is characterized in that in step S3, fill concrete is adopted
With C25 concrete or C25 gunite concrete, in mixing station centralized mixing.
5. the technique of tunnel grouting construction according to claim 4, which is characterized in that in step S4, concrete backfill is mixed
After solidifying soil mixing is good, pumping backfill is carried out using delivery pump, concrete is backfilled from low to high, primary backfill thickness≤
50cm。
6. the technique of tunnel grouting construction according to claim 5, which is characterized in that in step S5, surveyed in backfilling process
Amount personnel reinforce monitoring to tunnel arch top settlement, headroom change using total station, after slip casting, are reinforced using total station to first
Branch deformation monitoring measures.
7. the technique of tunnel grouting construction according to claim 6, which is characterized in that in step S6, after the completion of backfill, adopt
It is detected, slip casting effect is checked using bore extracting core process, slip casting drilling machine and inspection hole with geological radar and hammering method
Packing is closely knit.
8. application of the technique of tunnel grouting construction as claimed in claim 1 in constructing tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159014.0A CN109707411A (en) | 2019-03-04 | 2019-03-04 | A kind of technique of tunnel grouting construction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910159014.0A CN109707411A (en) | 2019-03-04 | 2019-03-04 | A kind of technique of tunnel grouting construction |
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| CN109707411A true CN109707411A (en) | 2019-05-03 |
Family
ID=66266127
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| CN201910159014.0A Pending CN109707411A (en) | 2019-03-04 | 2019-03-04 | A kind of technique of tunnel grouting construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058864A (en) * | 2019-11-29 | 2020-04-24 | 中铁九局集团第四工程有限公司 | Tunnel vault lining rear cavity high-pressure grouting auxiliary device |
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|---|---|---|---|---|
| SU1027402A1 (en) * | 1982-03-31 | 1983-07-07 | Горловский Филиал Донецкого Ордена Трудового Красного Знамени Политехнического Института | Pneumatic forms for underground work |
| CN203488189U (en) * | 2013-10-18 | 2014-03-19 | 四川省交通运输厅公路规划勘察设计研究院 | Tunnel structure for emptying renovation |
| CN104033164A (en) * | 2014-05-26 | 2014-09-10 | 江苏鼎泰工程材料有限公司 | Method for solving disengagement and water seepage of internal arch of tunnel |
| CN108316950A (en) * | 2018-03-18 | 2018-07-24 | 中铁十九局集团第三工程有限公司 | Tunnel vault concrete belt mould backfills filling system and its grouting method |
| CN208380585U (en) * | 2018-05-24 | 2019-01-15 | 中铁十九局集团第六工程有限公司 | It can prevent the tunnel system that preliminary bracing outer wall comes to nothing |
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2019
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1027402A1 (en) * | 1982-03-31 | 1983-07-07 | Горловский Филиал Донецкого Ордена Трудового Красного Знамени Политехнического Института | Pneumatic forms for underground work |
| CN203488189U (en) * | 2013-10-18 | 2014-03-19 | 四川省交通运输厅公路规划勘察设计研究院 | Tunnel structure for emptying renovation |
| CN104033164A (en) * | 2014-05-26 | 2014-09-10 | 江苏鼎泰工程材料有限公司 | Method for solving disengagement and water seepage of internal arch of tunnel |
| CN108316950A (en) * | 2018-03-18 | 2018-07-24 | 中铁十九局集团第三工程有限公司 | Tunnel vault concrete belt mould backfills filling system and its grouting method |
| CN208380585U (en) * | 2018-05-24 | 2019-01-15 | 中铁十九局集团第六工程有限公司 | It can prevent the tunnel system that preliminary bracing outer wall comes to nothing |
| CN109404012A (en) * | 2018-11-21 | 2019-03-01 | 中国电建集团成都勘测设计研究院有限公司 | IV~VI grade of country rock is backbreak Tunnel method |
Non-Patent Citations (1)
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| 文轩: "隧道工程初期支护背后脱空预控措施及处理方案", 《豆丁网》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058864A (en) * | 2019-11-29 | 2020-04-24 | 中铁九局集团第四工程有限公司 | Tunnel vault lining rear cavity high-pressure grouting auxiliary device |
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