CN104033165A - Repairing method and grout for tunnel defects - Google Patents
Repairing method and grout for tunnel defects Download PDFInfo
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- CN104033165A CN104033165A CN201410223621.6A CN201410223621A CN104033165A CN 104033165 A CN104033165 A CN 104033165A CN 201410223621 A CN201410223621 A CN 201410223621A CN 104033165 A CN104033165 A CN 104033165A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000007547 defect Effects 0.000 title claims abstract description 12
- 239000011440 grout Substances 0.000 title abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims description 42
- 238000007569 slipcasting Methods 0.000 claims description 24
- 239000002689 soil Substances 0.000 claims description 21
- 230000001771 impaired effect Effects 0.000 claims description 5
- 210000005239 tubule Anatomy 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract 2
- 230000002950 deficient Effects 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000002431 foraging effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Abstract
The invention relates to a repairing method for tunnel defects. The repairing method includes the steps that detection radar is used for detecting the position of a cavity and the position of a passage where water burst happens in a defective tunnel; drilling is performed on the surface of a lining at the cavity position to obtain a grouting hole, a grouting pipe is installed and extends into the cavity position, drilling is performed on an outlet of the passage where water burst happens to obtain a first grouting hole of which the diameter is larger than that of the outlet of the passage where water burst happens, and a first grouting pipe is matched inside the first grouting hole in a sealed mode; grouting is performed on the first grouting hole and the grouting hole, the detection radar is used for detecting grout filling conditions inside the cavity and the passage where water burst happens in real time, and when the cavity and the passage where water burst happens are filled with grout, grouting is stopped; after the grout solidifies and reaches final strength, multiple longitudinal grooves and transverse grooves formed by extending outlines around are formed in the surface of the lining; all the grooves are filled with the grout, and the grout solidifies; the cavity and adjacent parts around the cavity are fixed and strengthened, and accumulated water in the passage where water burst happens are drained.
Description
Technical field
The present invention relates to a kind of tunnel defect restorative procedure and repair slurry, can repair diseases such as coming to nothing of encircleing in tunnel and infiltrations.
Background technology
Along with the continuous increase of highway in China and railway mileage, tunnel quantity also increases year by year, along with the increase of tunnel service time, various tunnel defects affect the safety in tunnel, wherein coming to nothing and seeping water is the most important two kinds of diseases of impact safety, come to nothing refer between tunnel lining and water barrier come to nothing, come to nothing between water barrier and preliminary bracing, come to nothing between preliminary bracing and country rock and plate at the bottom of and between inverted arch, come to nothing.The fixing formation of the lining cutting of the region that formation is come to nothing to tunnel threatens, and therefore finding in time and eliminating the above-mentioned region of coming to nothing becomes the steps necessary of tunnel maintenance.
China Patent No. is in the document of CN102052081, to disclose a kind of tunnel come to nothing technology and the construction method of Defects Treatment, above-mentioned tunnel is come to nothing and utilizes high polymer to carry out slip casting filling, thereby eliminate above-mentioned coming to nothing; But, the place's surrounding of coming to nothing generally also exists soil layer or the rock stratum sentencing except coming to nothing loosening, just can cause above-mentioned coming to nothing, said method is only in the place's slip casting of coming to nothing in tunnel fixedly come to nothing soil layer or the rock stratum at place, from now on may be still can become flexible and again cause at this place the phenomenon of coming to nothing because of the soil layer of surrounding or rock stratum.
Infiltration disease is mainly due to the osmosis that is subject to underground water, the waterproof of lining cutting and drainage imperfection, and underground water can penetrate water barrier and the lining cutting in tunnel, flow out from lining cutting surface, due to the souring of water, the crack at permeable place can be more and more wider, finally causes lining cutting avalanche.
China Patent No. is a kind of quick improvement method that discloses percolating water in the document of CN102108873, but the method is mainly seepage mouth and water burst passage to carry out shutoff, the water in water burst passage is not discharged completely, stay the part ponding in water burst passage can make the soil layer at lining cutting rear or rock stratum become flexible, have potential risk.
Summary of the invention
The primary technical problem solving of the present invention is to provide a kind of tunnel defect restorative procedure, can, to coming to nothing and surrounding adjacent regions is fixed strengthening, discharge the ponding in penetrating passage simultaneously.
In order to solve the problems of the technologies described above, the invention provides a kind of tunnel defect restorative procedure, it comprises the steps:
A. utilize detection radar to detect coming to nothing and the position of water burst passage in impaired tunnel, the surface of building at interior arch lining marks the outline line at the position of coming to nothing in detail;
B. hole and obtain injected hole and Grouting Pipe is installed on the lining cutting surface of the described position of coming to nothing, Grouting Pipe stretches in this comes to nothing, obtain in the boring of water burst channel outlet the injected hole one that diameter is greater than water burst channel outlet, in this injected hole one, be sealed with Grouting Pipe one;
C. Grouting Pipe and Grouting Pipe one are carried out to slip casting and utilize detection radar to detect in real time coming to nothing and the slurry of water burst channel interior is filled situation, come to nothing and stop slip casting when water burst passage when slurry is full of;
D. slip casting after stopping, again utilizing detection radar detect this come to nothing and water burst passage in whether also have and do not filled position by slurry, to existing the position of above-mentioned situation to re-start boring, slip casting;
E. the above-mentioned slurry curing being filled with reaching after final strength, outputs many cannelures that extended to surrounding by outline line and transverse groove and the degree of depth and at least reaches rock-soil layer on lining cutting surface;
F. utilize tubule filling adaptor to stretch in all cannelures and transverse groove and carry out mobile slip casting, fill up slurry and solidify.
The diameter of described injected hole is 12mm.
The width of described cannelure and transverse groove is 3mm, and the degree of depth exceeds the depth capacity 10cm coming to nothing.
All the other cannelures and transverse groove that outermost two cannelures and transverse groove surround outline line and extended to surrounding by this outline line.
This slurry is for the slip casting process of one of the claims 1-4 described tunnel defect restorative procedure.
This slurry is high strength foam-type resin.
This slurry is completely curing after 5 minutes in injection, injects and reaches final strength after 10 minutes.
With respect to prior art, the technique effect that the present invention has is:
1) tunnel defect restorative procedure of the present invention, combine with boring, slip casting by detection radar detection, determine fast that tunnel comes to nothing and the position of water burst passage fill up above-mentioned by slip casting and come to nothing, this is come to nothing and is fixed strengthening, by the ponding in the reverse discharge water burst of slip casing by pressure passage and make slurry fill water burst passage, shutoff water burst passage and do not drain the wherein method of ponding only compared to existing technology, can prevent the erosion of ponding to ground and produce new disease; Then output the bar-shaped trough that also deeply reaches rock-soil layer around this position of coming to nothing on lining cutting surface, slip casting curing in this bar-shaped trough, this adjacent rock-soil layer of position surrounding that comes to nothing is fixed to strengthening, and the interior curing slurry that comes to nothing is connected with the slurry in meshed groove, thereby make this come to nothing position and surrounding have rock-soil layer, water barrier or the lining cutting of loosening trend to be connected, compared to existing technology, the method at the position of coming to nothing is strengthened in slip casting separately, its fastness, reliability are higher, have reduced this position of coming to nothing and have again occurred becoming flexible, forming the probability newly coming to nothing;
2) the about 12mm of described injected hole, the 16mm injected hole that middle redeck adopts compared to existing technology, requires to encircle in higher tunnel for structural strength, and its impact is less;
3) width of cannelure and transverse groove is 3mm, can reduce the impact of fluting on arch structure intensity in tunnel, groove depth exceeds the depth capacity 10cm coming to nothing, to groove carry out slip casting solidify after, can not only strengthen the rock-soil layer of the surrounding of coming to nothing, can also to this come to nothing the back side more the rock-soil layer of depths carry out structure-reinforcedly, further reduce this position of coming to nothing and again occur the probability coming to nothing;
4) the outermost transverse groove transverse groove inner with it with cannelure, cannelure composition net structure be connected with coming to nothing, has further improved the fastening strength of come to nothing position and surrounding rock-soil layer after filling paste;
5) this slurry is not moisture, can not produce drying shrinkage phenomenon, can closely knit filling come to nothing and water burst passage; After slurry curing, have pliability and elasticity, be not easy to ftracture, this resin material has good impermeability simultaneously, can stop ponding in rock-soil layer in water burst passage infiltrates tunnel, and fracture and seam have good sealing function;
6) this slurry is completely curing after 5 minutes in injection, injects and reaches final strength after 10 minutes, and hardening time is short, engineering time and the impact on traffic are reduced, after slurry curing, form foaming shape solid, its density is cement paste 10%, can not produce larger load to lining cutting;
7) elative free swelling ratio of this slurry can reach 20:1, can come to nothing by Fast Filling, and in expansion process, further compacting is come to nothing and the parameatal soil layer of water burst;
8) solidify after Stability of Slurry strong, be difficult for aging distortion, its durability can reach a century;
9), after slurry curing, each chemical composition can not dissolved or decompose in ground ponding and be run off, environmentally safe;
10) coming to nothing and water burst passage after this slurry reparation, the later stage, without periodic maintenance, maintenance, has reduced maintenance cost.
Brief description of the drawings
In order to clearly demonstrate innovative principle of the present invention and the technical advantage than existing product thereof, by applying the limiting examples of described principle, possible embodiment is described by means of accompanying drawing below.In the drawings:
Fig. 1 is the profile in impaired tunnel in the present invention;
Fig. 2 is the profile in the tunnel after fluting in the present invention;
Fig. 3 is the elevation coming to nothing in tunnel in the present invention after the arch lining block surface fluting of locating.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, impaired tunnel generally comprises: rock-soil layer 1, and water barrier 2, lining cutting 3, comes to nothing 4, water burst path 10.
At the bottom of coming to nothing and generally appearing between rock-soil layer and water barrier and may be positioned at tunnel vault, tunnel arch side or tunnel arch, there is loosening trend in the rock-soil layer in the position surrounding that occurs coming to nothing, therefore be necessary that come to nothing position and surrounding are fixed to strengthening simultaneously just can make to come to nothing the rock-soil layer of place's surrounding in shakedown, prevents from again occurring the phenomenon of coming to nothing after this from sentencing.
Water burst passage generally, from the rock-soil layer at lining cutting rear through water barrier 2 and extend to the surface of lining cutting 3, is interconnected between water burst passage, and general multiple water burst passages share an infiltration outlet.
As shown in Figures 1 and 2, tunnel defect restorative procedure of the present invention, comprises the following steps:
(1) utilize arch lining in the impaired tunnel of three-dimensional detection detections of radar to come to nothing 4 and the position of water burst path 10 in building, the surface of building at interior arch lining marks in detail the general outline line 5 at 4 positions of coming to nothing and measures the degree of depth at these 4 positions of coming to nothing;
(2) mark the position of injected hole 6 on the lining cutting surface of the described position central authorities of coming to nothing, hole and Grouting Pipe 7 is installed in the position of injected hole 6, the diameter of injected hole is 12mm, and Grouting Pipe 7 stretches to this and comes to nothing in 4;
(3) mark the position of injected hole 1 in water burst channel outlet, hole in this position, the slightly larger in diameter of this injected hole one is in water burst channel outlet, the degree of depth of injected hole one is 5-10cm, in the interior installation Grouting Pipe 1 of this injected hole one, Grouting Pipe 1 is provided with sealing ring with the bottom fitting face of injected hole one, and the outer end of Grouting Pipe 1 is provided with the one way valve 12 that stops liquid in pipe outflow;
(4) in Grouting Pipe 7, filling adaptor is installed, debugging grouting equipment is also connected with filling adaptor and above-mentioned one way valve 12, and inspection injecting paste material also adds in grouting equipment;
(4) injected hole 7 and one way valve 12 are carried out to slip casting and utilize three-dimensional detection radar to detect in real time coming to nothing 4 and the slurry of water burst path 10 inside fill situation, come to nothing 4 and stop slip casting when water burst path 10 when slurry is full of this;
(5) slip casting after stopping, again utilizing detection radar detect this come to nothing 4 and water burst path 10 in whether also have and do not filled position by slurry, to existing the position of above-mentioned situation to re-start boring, slip casting;
(6) after waiting for 10 minutes, the above-mentioned slurry curing being filled with also reaches final strength, then according to the degree of depth of coming to nothing and 4 the outline line of coming to nothing that marks, as shown in Figure 2 and Figure 3, on lining cutting surface, draw many slotted lines and slot with groover, the groove of outputing comprises that many are parallel to the cannelure 8 of tunnel center line and the transverse groove 9 perpendicular to tunnel center line, the outline line coming to nothing described in lining cutting superolateral two cannelures 8 in surface and two transverse grooves 9 surround also forms a rectangle, all the other cannelures 8 originate in respectively the transverse groove 9 in outside and end at outline line 5, all the other transverse grooves 9 originate in the cannelure 8 in outside and end at outline line 5, the width of all grooves is 3mm, each cannelure 8 and the degree of depth of transverse groove 9 exceed above-mentioned 4 the depth capacity 10cm of coming to nothing recording,
(7) utilize tubule filling adaptor to stretch in all cannelures 8 and transverse groove 9 and carry out mobile slip casting, finally above-mentioned all cannelures, transverse groove all filled up to slurry and solidify.
Embodiment 2
Slurry described in the present invention adopts a kind of high strength foam-type resin, its model is SZ2, when slip casting, this resin is added in above-mentioned grouting equipment, the resin viscosity flowing out from this grouting equipment is 200 ± 65mPas, this resin slurry volume in flowing constantly increases, its penetrating power is strong, be suitable for arriving fast the position or enter in water burst passage of coming to nothing, under grouting pressure effect, be suitable for squeezing the ponding in water burst passage and filling this water burst passage, it is completely curing after above-mentioned slurry injects 5 minutes, inject and reach its final strength after 10 minutes, comprise compressive strength >=1.5MPa, bending strength >=1.3MPa.
This slurry has following characteristics:
(1) this slurry is not moisture, can not produce drying shrinkage phenomenon, can closely knit filling come to nothing and water burst passage; After slurry curing, have pliability and elasticity, be not easy to ftracture, this resin material has good impermeability simultaneously, can stop ponding in rock-soil layer in water burst passage infiltrates tunnel, and fracture and seam have good sealing function;
(2) after slurry curing, form foaming shape solid, its density is cement paste 10%, can not produce larger load to lining cutting;
(3) elative free swelling ratio of this slurry can reach 20:1, can come to nothing by Fast Filling, and in expansion process, further compacting is come to nothing and the parameatal soil layer of water burst;
(4) solidify after Stability of Slurry strong, be difficult for aging distortion, its durability can reach a century;
(5), after slurry curing, each chemical composition can not dissolved or decompose in ground ponding and be run off, environmentally safe;
(6) coming to nothing and water burst passage after this slurry reparation, the later stage, without periodic maintenance, maintenance, has reduced maintenance cost.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And these belong to apparent variation that spirit of the present invention extended out or variation still among protection scope of the present invention.
Claims (3)
1. a restorative procedure for tunnel defect, is characterized in that comprising the steps:
A. utilize detection radar to detect the position of coming to nothing in impaired tunnel (4) and water burst passage (10), the surface of building at interior arch lining marks the outline line (5) at (4) position of coming to nothing in detail;
B. hole on the lining cutting surface of the described position of coming to nothing and obtain injected hole (7) and Grouting Pipe (7) is installed, Grouting Pipe (7) stretches to this and comes to nothing in (4), obtain in the boring of water burst channel outlet the injected hole one (11) that diameter is greater than water burst channel outlet, in this injected hole one (11), be sealed with Grouting Pipe one (13);
C. Grouting Pipe (7) and Grouting Pipe one (13) are carried out to slip casting and utilize detection radar to detect in real time coming to nothing (4) and slurry that water burst passage (10) is inner is filled situation, come to nothing when slurry is full of (4) and stop slip casting when water burst passage (10);
D. slip casting after stopping, again utilizing detection radar detect this come to nothing (4) and water burst passage (10) in whether also have and do not filled position by slurry, to existing the position of above-mentioned situation to re-start boring, slip casting;
E. the above-mentioned slurry curing being filled with reaching after final strength, outputs many cannelures (8) that extended to surrounding by outline line (5) and at least reaches rock-soil layer with transverse groove (9) and the degree of depth on lining cutting surface; Described cannelure (8) and transverse groove (9) extend to parallel cannelure and the transverse groove of two couples in outline line (5) outside;
F. utilize tubule filling adaptor to stretch in all cannelures (8) and transverse groove (9) and carry out mobile slip casting, fill up slurry and solidify.
2. method according to claim 1, is characterized in that: the diameter of described injected hole is 12mm.
3. method according to claim 1, is characterized in that: described cannelure (8) is 3mm with the width of transverse groove (9), and the degree of depth exceeds the depth capacity 10cm of come to nothing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410223621.6A CN104033165B (en) | 2014-05-26 | 2014-05-26 | Tunnel defect restorative procedure and reparation slurry |
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| CN201410223621.6A CN104033165B (en) | 2014-05-26 | 2014-05-26 | Tunnel defect restorative procedure and reparation slurry |
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| Publication Number | Publication Date |
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| CN104033165A true CN104033165A (en) | 2014-09-10 |
| CN104033165B CN104033165B (en) | 2016-08-31 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927246A (en) * | 2016-03-23 | 2016-09-07 | 中山大学 | High-pressure tunnel lining concrete uplift failure repair method |
| CN109268019A (en) * | 2018-11-20 | 2019-01-25 | 西安建筑科技大学 | A kind of quick disposal plant of high-ground stress tunnel part disease and method |
| CN109681235A (en) * | 2018-08-15 | 2019-04-26 | 福建陆海工程勘察设计有限公司 | Method for repairing highway tunnel lining cavity with poor surrounding rock |
| CN110206561A (en) * | 2019-05-30 | 2019-09-06 | 中国神华能源股份有限公司神朔铁路分公司 | Disease in Tunnel Base point processing method |
| CN110608066A (en) * | 2019-10-10 | 2019-12-24 | 中国五冶集团有限公司 | Detection system for tunnel grouting depth |
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| JP2007162265A (en) * | 2005-12-12 | 2007-06-28 | Kumagai Gumi Co Ltd | Tunnel construction method |
| CN101832142A (en) * | 2010-02-11 | 2010-09-15 | 中铁十二局集团有限公司 | Tunnel information tracing accurate grouting method |
| CN102052081A (en) * | 2009-11-02 | 2011-05-11 | 郑州优特基础工程维修有限公司 | High polymer grouting technology for treating tunnel void and construction method thereof |
| CN102108873A (en) * | 2009-12-29 | 2011-06-29 | 郑州优特基础工程维修有限公司 | High-polymer grouting method for rapidly disposing percolating water in tunnel |
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2014
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007162265A (en) * | 2005-12-12 | 2007-06-28 | Kumagai Gumi Co Ltd | Tunnel construction method |
| CN102052081A (en) * | 2009-11-02 | 2011-05-11 | 郑州优特基础工程维修有限公司 | High polymer grouting technology for treating tunnel void and construction method thereof |
| CN102108873A (en) * | 2009-12-29 | 2011-06-29 | 郑州优特基础工程维修有限公司 | High-polymer grouting method for rapidly disposing percolating water in tunnel |
| CN101832142A (en) * | 2010-02-11 | 2010-09-15 | 中铁十二局集团有限公司 | Tunnel information tracing accurate grouting method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927246A (en) * | 2016-03-23 | 2016-09-07 | 中山大学 | High-pressure tunnel lining concrete uplift failure repair method |
| CN109681235A (en) * | 2018-08-15 | 2019-04-26 | 福建陆海工程勘察设计有限公司 | Method for repairing highway tunnel lining cavity with poor surrounding rock |
| CN109268019A (en) * | 2018-11-20 | 2019-01-25 | 西安建筑科技大学 | A kind of quick disposal plant of high-ground stress tunnel part disease and method |
| CN110206561A (en) * | 2019-05-30 | 2019-09-06 | 中国神华能源股份有限公司神朔铁路分公司 | Disease in Tunnel Base point processing method |
| CN110608066A (en) * | 2019-10-10 | 2019-12-24 | 中国五冶集团有限公司 | Detection system for tunnel grouting depth |
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| Publication number | Publication date |
|---|---|
| CN104033165B (en) | 2016-08-31 |
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Denomination of invention: Repair methods for tunnel diseases and repair slurry Granted publication date: 20160831 Pledgee: Industrial and Commercial Bank of China Danyang Branch Pledgor: JIANGSU DINGTAI ENGINEERING MATERIAL CO.,LTD. Registration number: Y2024980002806 |