CN109268019B - Device and method for quickly treating local diseases of high-geostress tunnel - Google Patents
Device and method for quickly treating local diseases of high-geostress tunnel Download PDFInfo
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- CN109268019B CN109268019B CN201811384767.3A CN201811384767A CN109268019B CN 109268019 B CN109268019 B CN 109268019B CN 201811384767 A CN201811384767 A CN 201811384767A CN 109268019 B CN109268019 B CN 109268019B
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- 201000010099 disease Diseases 0.000 title claims abstract description 63
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 102
- 239000010959 steel Substances 0.000 claims abstract description 102
- 238000010276 construction Methods 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims description 53
- 238000005507 spraying Methods 0.000 claims description 46
- 230000007547 defect Effects 0.000 claims description 20
- 239000004567 concrete Substances 0.000 claims description 18
- 239000002344 surface layer Substances 0.000 claims description 10
- 239000011435 rock Substances 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000003902 lesion Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 208000037921 secondary disease Diseases 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Classifications
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- 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
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
-
- 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
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- 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
- E21D11/14—Lining predominantly with metal
-
- 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/021—Grouting with inorganic components, e.g. cement
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a device and a method for quickly treating local diseases of a high-ground-stress tunnel, aiming at the local tunnel diseases, firstly, disease exploration and identification are carried out, a temporary steel arch is erected in the range of the tunnel diseases, and a top-locking steel pipe and a bottom-locking steel pipe are respectively driven into the upper part and the lower part in the range of the tunnel diseases, so that the safety of the construction process is ensured, the method can be quickly positioned and locally managed, the construction is carried out in the time of a skylight in the same line of a train, and the influence on the operation of the train is small; the method has strong pertinence, can quickly treat the diseases of the small tunnel, avoids the problem of poor treatment effect of the conventional treatment means, can save cost, is green and environment-friendly, and has good application prospect.
Description
Technical Field
The invention belongs to the field of tunnel disease treatment, and particularly relates to a device and a method for quickly treating local diseases of a high-ground-stress tunnel.
Background
At present, thousands of highway and railway tunnels are built in China, the geological conditions of the tunnels are very complicated, and various diseases can gradually appear along with the increase of the operation years after the tunnels are built and operated. The reasons for the tunnel diseases are complex, and generally, three factors can be considered: firstly, due to the design reason, the tunnel design support parameters are not reasonable enough, and various diseases are gradually caused along with the insufficient durability of the tunnel operation lining concrete; secondly, due to construction factors, local construction quality problems may occur in the tunnel construction process, for example, the local lining concrete is not vibrated compactly or the thickness is not enough, and diseases can also occur along with operation; in addition, due to geological factors, the open face of tunnel excavation has a water catchment effect, the change of water environment causes the deterioration of geological conditions around the tunnel, the pressure of surrounding rocks is increased, local stress is increased due to the possibly texture structure, the original lining strength cannot meet the bearing strength, and various diseases occur. With the increase of the service life of the infrastructure traffic facilities in China, more and more tunnel diseases will appear in the follow-up process, and how to timely, quickly and effectively treat the tunnel diseases has important significance.
At present, a better method is not provided for treating tunnel diseases, the tunnel diseases are usually treated by hanging nets and spraying concrete, when the diseases are serious, a second lining needs to be removed and done again, the treatment effect of the first lining is not ideal, the temporary solution and the permanent solution are usually treated, secondary diseases can still occur along with the increase of operation time, the treatment cost of the second lining is high, the treatment time is long, and the normal operation of a train is influenced.
Disclosure of Invention
The invention aims to overcome the defects and provide a device and a method for quickly treating local defects of a high-ground-stress tunnel, which can quickly repair the defects with small scale without influencing normal traffic, save maintenance cost and ensure the operation safety of the tunnel.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for quickly treating local diseases of a high-geostress tunnel comprises the following steps:
firstly, detecting and identifying tunnel defects, and determining the area of the tunnel defects;
step two, erecting a temporary steel arch in the range of tunnel defects;
respectively driving a plurality of top locking steel pipes and a plurality of bottom locking steel pipes above and below the range of the tunnel defect, respectively grouting, and correspondingly arranging the top locking steel pipes and the bottom locking steel pipes;
step four, removing the original lining concrete at the tunnel disease;
step five, drilling stress release holes on the surrounding rocks within the disease range;
driving an anchor rod into the stress release hole, and grouting into the anchor rod;
step seven, arranging steel supports between the corresponding lock top steel pipes and the lock bottom steel pipes;
step eight, spraying a concrete primary spraying layer on the surface of the tunnel defect, and leveling a construction surface;
step nine, laying a waterproof layer on the construction surface;
step ten, spraying a re-spraying layer on the waterproof layer, and maintaining to the designed strength;
step eleven, dismantling the temporary steel arch frame;
and step twelve, beautifying the surface of the re-spraying layer to obtain a beautified surface layer, and finally finishing treatment of local diseases of the tunnel.
The top locking steel pipe and the bottom locking steel pipe are both hollow steel pipes with grouting holes and the diameter of 32 mm.
The diameter of the stress release hole was 20mm and the depth was 3 m.
The anchor rod length is 4 m.
The steel support is a steel pipe with a rectangular cross section, and the steel support is connected with the lock top steel pipe and the lock bottom steel pipe through welding.
The primary spraying layer and the secondary spraying layer are both made of wet spraying concrete, the thickness of the primary spraying layer is 10cm, and the thickness of the secondary spraying layer is 60 cm.
The beautifying surface layer is formed by plastering concrete.
The utility model provides a local disease of high ground stress tunnel deals with device fast, including setting up the interim steel bow member in tunnel disease within range, the top of tunnel disease department is provided with a plurality of lock top steel pipes, the below is provided with steel pipe at the bottom of a plurality of locks, be provided with the steel shotcrete between the lock top steel pipe that corresponds and the lock bottom steel pipe, be fixed with a plurality of stocks in the tunnel disease department, it has the layer of spouting just that is used for the construction face of making level to spout in the tunnel disease department, it has the waterproof layer to lay on the layer to just spout, it has the layer of spouting again to spray on the waterproof layer, it has beautifies the top layer to spout.
The bottom of the tunnel is provided with a steel arch support, and the temporary steel arch is fixed on the steel arch support.
Compared with the prior art, the method provided by the invention aims at local tunnel diseases, firstly, the diseases are probed and identified, the temporary steel arch is erected in the range of the tunnel diseases, and the top locking steel pipe and the bottom locking steel pipe are respectively driven into the upper part and the lower part in the range of the tunnel diseases, so that the method can be quickly positioned and locally managed, the construction is carried out in the time of a skylight in the same row of a train, and the influence on the operation of the train is small; the method has strong pertinence, can quickly treat the diseases of the small tunnel, avoids the problem of poor treatment effect of the conventional treatment means, can save cost, is green and environment-friendly, and has good application prospect.
The structure of the invention positions the diseased part through the temporary steel arch frame in the range of the tunnel disease, the lock top steel pipe and the lock bottom steel pipe, releases the stress to the diseased part through the anchor rod, and finally covers the primary spraying layer, the waterproof layer, the secondary spraying layer and the beautification surface layer in sequence on the diseased part.
Drawings
FIG. 1 is a view of a construction structure for treatment using the present invention;
FIG. 2 is a side view of FIG. 1;
the steel arch support comprises a lining 1, a lining 2, a temporary steel arch, a top locking steel pipe 3, a bottom locking steel pipe 4, a bottom locking steel pipe 5, an anchor rod 6, a stress release hole 7, a steel support 8, a primary spraying layer 9, a waterproof layer 10, a secondary spraying layer 11, a beautifying surface layer 12 and a steel arch support.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a device for rapidly treating local diseases of a high-ground-stress tunnel comprises a tunnel bottom, wherein a steel arch support 12 and a temporary steel arch 2 arranged in a tunnel disease range are arranged at the bottom of the tunnel, the temporary steel arch 2 is fixed on the steel arch support 12, a plurality of locking steel pipes 3 are arranged above a tunnel disease place, a plurality of locking bottom steel pipes 4 are arranged below the tunnel disease place, steel supports 7 are arranged between the corresponding locking top steel pipes 3 and the locking bottom steel pipes 4, a plurality of anchor rods 6 are fixed on the tunnel disease place, a primary spraying layer 8 for leveling a construction surface is sprayed on the tunnel disease place, a waterproof layer 9 is laid on the primary spraying layer 8, a secondary spraying layer 10 is sprayed on the waterproof layer 9, and a beautifying surface layer 11 is covered on the secondary spraying layer 10.
The top locking steel pipe 3 and the bottom locking steel pipe 4 are both hollow steel pipes with grouting holes and the diameter of 32 mm. The stress release holes 5 had a diameter of 20mm and a depth of 3 m. The anchor 6 is 4m in length. The steel support 7 is a steel pipe with a rectangular cross section, and the steel support 7 is connected with the lock top steel pipe 3 and the lock bottom steel pipe 4 through welding. The primary spraying layer 8 and the secondary spraying layer 10 are both made of wet spraying concrete, the thickness of the primary spraying layer 8 is 10cm, and the thickness of the secondary spraying layer 10 is 60 cm. The beautification surface layer 11 is formed by plastering concrete.
The invention comprises the following steps:
firstly, detecting and identifying tunnel defects, and determining the area of the tunnel defects;
step two: communicating with a train operator, determining a running operation schedule, and determining the duration of an operation skylight;
step three, erecting a temporary steel arch frame 2 in the range of tunnel defects;
respectively driving a plurality of top locking steel pipes 3 and a plurality of bottom locking steel pipes 4 above and below the range of the tunnel defect, respectively grouting, and correspondingly arranging the top locking steel pipes 3 and the bottom locking steel pipes 4;
step five, removing the concrete of the original lining 1 at the tunnel disease position;
sixthly, drilling stress release holes 5 on the surrounding rocks within the disease range;
step seven, driving an anchor rod 6 into the stress release hole 5, and grouting into the anchor rod 6;
step eight, arranging a steel support 7 between the corresponding lock top steel pipe 3 and the lock bottom steel pipe 4;
step nine, spraying a concrete primary spraying layer 8 on the surface of the tunnel disease, and leveling a construction surface;
step ten, laying a waterproof layer 9 on the construction surface;
step eleven, spraying a re-spraying layer 10 on the waterproof layer 9, and maintaining to the designed strength;
step twelve, dismantling the temporary steel arch frame 2;
and thirteen, beautifying the surface of the re-spraying layer 10 to obtain a beautified surface layer 11, and finally finishing treatment of local tunnel diseases.
Example (b):
yuwan railway tunnel lining diseases are treated, the tunnel diseases are cracking and peeling of the right side wall, tunnel experts investigate that local high ground stress is the most key factor causing the diseases, and the tunnel defects are required to be repaired as soon as possible under the condition that driving is not influenced as much as possible. The scheme provided by the invention comprises the following specific steps:
the method comprises the following steps: firstly, organizing personnel to explore and identify tunnel diseases and determine the area of the tunnel diseases as follows: the length is 3m multiplied by the width is 1m, and the tunnel is basically parallel to the axial direction of the tunnel;
step two: communicating with the iron road administration of Tenn State, determining a driving operation schedule, and determining that the time for operating the skylight is 1 to 5 pm, wherein all the following construction works are carried out in the time of the skylight;
step three, erecting temporary steel arches 2 in a tunnel defect range, setting the distance between the steel arches 2 to be 1m, and pouring concrete supports at the lower ends of the steel arches to ensure the bearing capacity of the steel arches;
respectively driving a plurality of top locking steel pipes 3 and a plurality of bottom locking steel pipes 4 above and below the range of the tunnel defect, respectively grouting, wherein the top locking steel pipes 3 and the bottom locking steel pipes 4 are correspondingly arranged, the distance between the top locking steel pipes and the bottom locking steel pipes is 30cm, and the length is 3 m;
step five, removing the concrete and the protruded surrounding rock part of the original lining 1 at the tunnel disease position;
sixthly, cutting stress release holes 5 in the surrounding rock within the disease range, wherein the hole depth is 3m, and the hole distance is 50 cm;
step seven, taking the stress release hole 5 as a foundation, further driving an anchor rod 6, and grouting the anchor rod 6;
step eight, arranging steel supports 7 between the corresponding lock top steel pipes 3 and the corresponding lock bottom steel pipes 4, wherein the distance between the steel supports is also 50 cm;
step nine, spraying a concrete primary spraying layer 8 with the thickness of 10cm on the surface of the tunnel disease part, and leveling a construction surface;
step ten, laying a waterproof layer 9 on the construction surface, wherein the waterproof layer 9 is a common waterproof board;
step eleven, spraying a re-spraying layer 10 on the waterproof layer 9, wherein the thickness of the re-spraying layer is 60cm, and maintaining the re-spraying layer to the designed strength;
step twelve, dismantling the temporary steel arch frame 2;
and thirteen, beautifying the surface of the re-spraying layer 10 to obtain a beautified surface layer 11, and finally finishing treatment of local tunnel diseases.
Claims (7)
1. A method for quickly treating local diseases of a high-geostress tunnel is characterized by comprising the following steps:
firstly, detecting and identifying tunnel defects, and determining the area of the tunnel defects;
step two, erecting a temporary steel arch (2) in the range of tunnel defects;
respectively driving a plurality of top locking steel pipes (3) and a plurality of bottom locking steel pipes (4) above and below the range of the tunnel defect, respectively grouting, and correspondingly arranging the top locking steel pipes (3) and the bottom locking steel pipes (4);
step four, removing the concrete of the original lining (1) at the tunnel lesion;
step five, drilling stress release holes (5) on the surrounding rocks within the disease range;
driving an anchor rod (6) into the stress release hole (5), and grouting into the anchor rod (6);
step seven, arranging a steel support (7) between the corresponding lock top steel pipe (3) and the lock bottom steel pipe (4);
step eight, spraying a concrete primary spraying layer (8) on the surface of the tunnel defect, and leveling a construction surface;
step nine, laying a waterproof layer (9) on the construction surface;
step ten, spraying a re-spraying layer (10) on the waterproof layer (9), and maintaining to the designed strength;
step eleven, dismantling the temporary steel arch frame (2);
step twelve, beautifying the surface of the re-spraying layer (10) to obtain a beautified surface layer (11), and finally finishing treatment of local tunnel diseases;
the top locking steel pipe (3) and the bottom locking steel pipe (4) are both hollow steel pipes with grouting holes.
2. The method for rapidly treating the local diseases of the high-geostress tunnel according to claim 1, wherein the diameters of the lock top steel pipe (3) and the lock bottom steel pipe (4) are both 32 mm.
3. The method for rapidly treating local diseases of high geostress tunnels according to claim 1, characterized in that the diameter of the stress release holes (5) is 20mm and the depth is 3 m.
4. The method for rapidly treating the local diseases of the high-geostress tunnel according to the claim 1, characterized in that the length of the anchor rod (6) is 4 m.
5. The method for rapidly treating the local diseases of the high-geostress tunnel according to claim 1, characterized in that the steel support (7) is a steel pipe with a rectangular section, and the steel support (7) is connected with the lock top steel pipe (3) and the lock bottom steel pipe (4) through welding.
6. The method for rapidly treating the local diseases of the high-geostress tunnel according to the claim 1, characterized in that the primary spraying layer (8) and the secondary spraying layer (10) both adopt wet spraying concrete, the thickness of the primary spraying layer (8) is 10cm, and the thickness of the secondary spraying layer (10) is 60 cm.
7. The method for rapidly treating local diseases of the high-ground-stress tunnel according to claim 1, wherein the beautified surface layer (11) is coated by concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384767.3A CN109268019B (en) | 2018-11-20 | 2018-11-20 | Device and method for quickly treating local diseases of high-geostress tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384767.3A CN109268019B (en) | 2018-11-20 | 2018-11-20 | Device and method for quickly treating local diseases of high-geostress tunnel |
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| Publication Number | Publication Date |
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| CN109268019A CN109268019A (en) | 2019-01-25 |
| CN109268019B true CN109268019B (en) | 2020-08-25 |
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| CN201811384767.3A Expired - Fee Related CN109268019B (en) | 2018-11-20 | 2018-11-20 | Device and method for quickly treating local diseases of high-geostress tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110486053A (en) * | 2019-09-05 | 2019-11-22 | 贵阳建筑勘察设计有限公司 | A kind of urban track traffic shallow tunnel fault of construction treatment construction method |
| CN112096419A (en) * | 2020-10-25 | 2020-12-18 | 山西省交通科技研发有限公司 | Supporting structure and method for repairing tunnel secondary lining damage |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000356099A (en) * | 1999-04-14 | 2000-12-26 | Maeda Corp | Method for compacting concrete of tunnel lining |
| CN104033164B (en) * | 2014-05-26 | 2016-07-06 | 江苏鼎泰工程材料有限公司 | Come to nothing and the harmful method repaired that seeps water to what encircle in tunnel |
| CN104033165B (en) * | 2014-05-26 | 2016-08-31 | 江苏鼎泰工程材料有限公司 | Tunnel defect restorative procedure and reparation slurry |
| CN204691782U (en) * | 2015-04-15 | 2015-10-07 | 山西省交通科学研究院 | A kind of Tunnel Second Lining surface Defects Treatment structure |
| CN105178980B (en) * | 2015-09-07 | 2018-10-09 | 中南大学 | Put in a skylight liner structure restorative procedure for a kind of tunnel |
| CN105201530A (en) * | 2015-10-28 | 2015-12-30 | 北京工业大学 | Repairing and strengthening method for large cracks on rock tunnel lining |
| CN205823298U (en) * | 2016-06-07 | 2016-12-21 | 四川盛唐建设工程有限公司 | Existing operation tunnel defect processing template fixed structure |
| CN106837384B (en) * | 2017-03-31 | 2019-09-10 | 中铁二院昆明勘察设计研究院有限责任公司 | Rhegma Disease Treatment structure and method are removed in tunnel-liner |
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