CN104727829A - Tunnel lining structure with detachable lining tire and construction installation method thereof - Google Patents
Tunnel lining structure with detachable lining tire and construction installation method thereof Download PDFInfo
- Publication number
- CN104727829A CN104727829A CN201510101207.2A CN201510101207A CN104727829A CN 104727829 A CN104727829 A CN 104727829A CN 201510101207 A CN201510101207 A CN 201510101207A CN 104727829 A CN104727829 A CN 104727829A
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- Prior art keywords
- steel arch
- shelf
- tire
- lining cutting
- tunnel
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 90
- 239000010959 steel Substances 0.000 claims abstract description 90
- 239000011435 rock Substances 0.000 claims abstract description 64
- 230000006378 damage Effects 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 claims description 15
- 238000012546 transfer Methods 0.000 claims description 12
- 239000011888 foil Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 4
- 230000003712 anti-aging effect Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000011160 research Methods 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 238000012958 reprocessing Methods 0.000 claims description 2
- 238000013022 venting Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a tunnel lining structure with a detachable lining tire and a construction installation method thereof. The tunnel lining structure comprises the lining tire, a pressure force meter, an alarm device, strain pieces, U-shaped expansion bolts and the like. By means of the tunnel lining structure with the detachable lining tire and the construction installation method thereof, in the construction process, the internal force of a steel arch does not increase when surrounding rocks deform, the surrounding rocks produce supporting force all the time, local damage does not happen on the surrounding rocks, and it can be guaranteed that when the steel arch is damaged, large internal force does not occur simultaneously. The tunnel lining structure with the detachable lining tire and the construction installation method thereof has the advantages that the tunnel lining structure with the detachable lining tire is suitable for tunnels with various shapes, sustaining strength of the surrounding rocks can be exerted adequately, it is guaranteed that the whole steel arch is uniformly forced, sudden damage of the surrounding rocks is prevented in the construction process, the safety property is improved, the steel arch can be dismantled in the late construction, and the tunnel construction cost is greatly reduced.
Description
Technical field
The present invention relates to the device field of construction of tunnel, be specifically related to a kind of tunnel lining structure and the construction installation method thereof with detachable lining cutting tire.
Background technology
Now, along with the development of China's transportation network, construction of tunnel construction is more and more huger, and tunnel soft rock and dilatancy soil layer problem have become a kind of problem demanding prompt solution.In steel arch-shelf work progress, there are problems: after the tunnel excavation of first dilatancy soil layer, tunnel wall rock deformation is comparatively large, and distortion can reach 20 ~ 40cm, causes steel arch-shelf to bear very large pressure, crimp very easily occurs and destroys.It two is that steel arch-shelf is installed too early, and surrouding rock deformation is carried out, and this can cause steel arch-shelf to bear very large pressure from surrounding rock; Cross and steel arch-shelf is installed late then leaves country rock generation Free Transform, during this period country rock non-support power, easily occur that block destroys, flaking situation.Its three be steel arch-shelf install after, still there is local distortion in country rock, this can cause steel arch-shelf local bear larger pressure.Find a kind of suspension device rapidly, can make surrouding rock deformation and steel arch-shelf internal force does not increase, and country rock existing supporting power all the time, can not there is local failure in country rock, can ensure again that steel arch-shelf can not produce very large internal stress when destroying simultaneously.At present, the device overcome the above problems be found still not exist.
Summary of the invention
The object of this invention is to provide a kind of tunnel lining structure and the construction installation method thereof with detachable lining cutting tire, it is devoted to improve dilatancy soil layer tunnel steel arch frame utilization rate, economizes on resources, realizes green economy; It two prevents the unexpected unstability of country rock, and prevent steel arch-shelf from bearing greater impact power, it is useful in buried country rock cavern, and variations in temperature is little, the lining cutting tire device be arranged between country rock and steel arch-shelf under variations in temperature causes gas pressure intensity to change pole low condition.
A kind of tunnel lining structure with detachable lining cutting tire, it comprises steel arch-shelf, lining cutting tire is provided with between steel arch-shelf and country rock, air is filled with in lining cutting tire, lining cutting tire is provided with to let out and carries device, let out a year bottom of device and be provided with transfer port, steel arch-shelf and lining cutting tire are fixed on country rock by U-shaped expansion bolt, lining cutting tire is provided with pressure dynamometer, gas pressure intensity in pressure dynamometer monitoring tire, be provided with warning device between steel arch-shelf and country rock, described warning device is for monitoring country rock and steel arch-shelf spacing, and distance is less than 20mm and reports to the police immediately, described tire section thickness is 9mm, adopt wear-resistant outside tire, anti-country rock corner angle puncture, anti-aging, corrosion-resistant material thickeies, tyre last is improved, thickening layer thickness is 1mm, between described steel arch-shelf and country rock, spacing is at 200mm-400mm, give country rock certain deformation space, described steel arch-shelf frame pin adopts shallow embedding and crab-bolt link is arranged, be convenient to remove, described transfer port is exhaust, the device that gas transmission is integrated, when in tire, gas pressure intensity reaches 3Mpa, then transfer port valve will by jack-up, gas is discharged, when pressure is less than this value, valve closing, do not discharge gas.
Above-mentioned steel arch-shelf is provided with foil gauge, and foil gauge is for monitoring steel arch-shelf ess-strain situation.
Have a construction installation method for the tunnel lining structure of detachable lining cutting tire, it comprises the steps:
1) road excavates and adopts full section method, and tunnel excavation completes, the concrete that first just spray 28-30mm is thick on country rock wall, then inserted to play anchor pole, installation steel mesh reinforcement, and reinforcing bar grid all covers by jetting cement;
2) body is filled with lining cutting tire from transfer port, in gas transmission process by tire dolly in tunnel, make to be close to country rock outside tire, subsequently pressure dynamometer installed;
3) steel arch-shelf is installed, monitoring steel arch-shelf ess-strain situation; Steel arch-shelf lower end adopts shallow embedding, and arranges bolt connection; " U " type expansion bolt is adopted to fix between steel arch-shelf and lining cutting tire, holdout device stability;
4) alarm device is arranged between country rock and steel arch-shelf, lining cutting tire side;
5) monitor gas pressure intensity in lining cutting tire and be greater than 3Mpa, tire discharges gas immediately automatically, until when pressure is stabilized in 3Mpa, Artificial Release venting body is to pressure to 0.5Mpa, pressure changed and maintains about 10% in 1 month, then can assert that surrouding rock deformation has reached stable, be now dismountable steel arch-shelf, remove steel arch-shelf step: a pulls down strain gauge device and warning device on steel arch-shelf; B removes steel arch arching, takes mode from top to bottom to remove whole steel arch-shelf; The foil gauge that c removes and steel arch-shelf are put in order, can continue to be used in next Pin steel arch-shelf, and the material recovery reprocessing of destruction uses; Or in monitoring lining cutting tire, gas pressure intensity is greater than 3Mpa, and tire discharges gas immediately automatically, and in deflation course, country rock and steel arch-shelf spacing reduce gradually, and when distance reaches 20mm, warning device is reported to the police, then now can remove lining cutting tire, removes step; A removes pressure dynamometer and the warning device of lining cutting tire; B discharges gas, and extracts tire out; C removes pressure dynamometer and tire, can continue to be used in next Pin steel arch-shelf.
The present invention has following beneficial effect: the present invention is under certain supporting condition of foetal sac, and surrouding rock deformation can sustainable development, when there is not country rock local failure, playing country rock self tenability fully, reducing steel arch-shelf stressed.Gassy in foetal sac, gas compression space is large, can provide surrouding rock deformation space, and due to gas fluidity good, then can transmit that country rock transmits preferably extrusion stress, make the stressed approaches uniformity of steel arch-shelf.Because air bag retractility is good, in its deformation range, surrouding rock deformation will cause any internal force to increase to steel arch-shelf.Device can allow country rock have to face dummy status completely, and useful larger distortion, prevents progressive destruction.Can have on the basis of moderate finite deformation at country rock, steel arch-shelf will bear relatively little stress, then steelframe significantly can reduce cross-sectional area, and reduces intensity, thus saving steel.When lining cutting tire itself can bear country rock transmit load, steel arch-shelf then can remove steelframe, greatly reduces the cost of constructing tunnel.When steel arch-shelf can not be removed, lining cutting tire just can be removed, and recycles, and too much can not increase extra cost.Device is applicable to difformity tunnel, such as door opening formula, the shape of a hoof, circle etc., and the simple structure of device, shape can make the appropriate adjustments according to engineering practice and needs and change.When this device is used for scientific research purposes, can camera head be increased, clear monitoring foetal sac deformation, thus analyze country rock trend and details.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is that front tunnel schematic diagram installed by lining cutting tire;
Fig. 2 is lining cutting tire installation tunnel schematic diagram;
Fig. 3 is lining cutting tire section schematic diagram;
Fig. 4 is that constructing tunnel completes schematic diagram;
Fig. 5 is that U-shaped expansion bolt fixes auspicious figure;
Fig. 6 is that steel arch-shelf frame pin connects detail drawing;
Fig. 7 is warning device detail drawing;
Fig. 8 is tunnel schematic diagram after dismounting steel arch-shelf;
Fig. 9 is tunnel schematic diagram after dismounting lining cutting tire.
Detailed description of the invention
As in Fig. 1-9, a kind of tunnel lining structure with detachable lining cutting tire, it comprises steel arch-shelf 7, lining cutting tire 3 is provided with between steel arch-shelf and country rock 1, air 2 is filled with in lining cutting tire, lining cutting tire is provided with to let out and carries device, let out a year bottom of device and be provided with transfer port 4, steel arch-shelf and lining cutting tire are fixed on country rock by U-shaped expansion bolt 8, lining cutting tire is provided with pressure dynamometer 5, gas pressure intensity in pressure dynamometer monitoring tire, warning device 6 is provided with between steel arch-shelf and country rock, warning device comprises emergency alarm bell 13, the sheet metal 15 at wire 14 and wire two ends, described tire section thickness is 9mm, adopt wear-resistant outside tire, anti-country rock corner angle puncture, anti-aging, corrosion-resistant material thickeies, tyre last is improved, thickening layer thickness is 1mm, between described steel arch-shelf and country rock, spacing is at 200mm-400mm, give country rock certain deformation space, described steel arch-shelf frame pin adopts shallow embedding and crab-bolt link is arranged, be convenient to remove, described transfer port is exhaust, the device that gas transmission is integrated, when in tire, gas pressure intensity reaches 3Mpa, then transfer port valve will by jack-up, gas is discharged, when pressure is less than this value, valve closing, do not discharge gas.Described steel arch-shelf is provided with foil gauge 9, and foil gauge is for monitoring steel arch-shelf ess-strain situation.Described warning device is for monitoring country rock and steel arch-shelf spacing, and distance is less than 20mm and reports to the police immediately, and the time of laying, riding position determined according to country rock later stage surrouding rock deformation situation, and number also can suitably increase after steel arch-shelf and the installation of lining cutting tire; U-shaped expansion bolt is adopted to fix between lining cutting tire and steel arch-shelf, holdout device stability.
This structure construction step is as follows:
1) road excavates and adopts full section method, and tunnel excavation completes, the concrete that first just spray 28-30mm is thick on country rock wall, then inserted to play anchor pole 10, installation steel mesh reinforcement 11, and reinforcing bar grid 12 all covers by jetting cement.(as Fig. 1)
2) body is filled with lining cutting tire from transfer port, in gas transmission process by tire dolly in tunnel, make to be close to country rock outside tire.Subsequently pressure dynamometer is installed.(as Fig. 2)
3) steel arch-shelf, Practical Project need not install foil gauge, if this device is used for scientific research object can install foil gauge, monitoring steel arch-shelf ess-strain situation; Steel arch-shelf lower end adopts shallow embedding, and arranges bolt connection; U-shaped expansion bolt is adopted to fix between steel arch-shelf and lining cutting tire, holdout device stability.(as Fig. 4-7)
4) alarm device is arranged between country rock and steel arch-shelf, lining cutting tire side.
5) utilization of described lining cutting tire in engineering reality, its supporting intensity requires 1.2Mpa, then have following two kinds of situations:
Claims (9)
1. one kind has the tunnel lining structure of detachable lining cutting tire, it comprises steel arch-shelf (7), it is characterized in that, lining cutting tire (3) is provided with between steel arch-shelf and country rock (1), air (2) is filled with in lining cutting tire, lining cutting tire is provided with to let out and carries device, let out a year bottom of device and be provided with transfer port (4), steel arch-shelf and lining cutting tire are fixed on country rock by U-shaped expansion bolt (8), lining cutting tire is provided with pressure dynamometer (5), gas pressure intensity in pressure dynamometer monitoring tire, is provided with warning device (6) between steel arch-shelf and country rock.
2. the tunnel lining structure with detachable lining cutting tire according to claim 1, is characterized in that: described warning device is for monitoring country rock and steel arch-shelf spacing, and distance is less than 20mm and reports to the police immediately.
3. the tunnel lining structure with detachable lining cutting tire according to claim 1, it is characterized in that: described tire section thickness is 9mm, adopt wear-resistant, anti-country rock corner angle to puncture outside tire, anti-aging, corrosion-resistant material thickeies, tyre last is improved, and thickening layer thickness is 1mm.
4. the tunnel lining structure with detachable lining cutting tire according to claim 1, is characterized in that: between described steel arch-shelf and country rock, spacing is at 200mm-400mm, gives country rock certain deformation space.
5. the tunnel lining structure with detachable lining cutting tire according to claim 1, is characterized in that: described steel arch-shelf frame pin adopts shallow embedding and crab-bolt link is arranged, and is convenient to remove.
6. the tunnel lining structure with detachable lining cutting tire according to claim 1, it is characterized in that: the device that described transfer port is exhaust, gas transmission is integrated, when gas pressure intensity in tire reaches, timing is set, transfer port valve will by jack-up, gas is discharged, when pressure is less than this value, valve closing, does not discharge gas.
7. the tunnel lining structure with detachable lining cutting tire according to claim 1, it is characterized in that: described steel arch-shelf is provided with foil gauge (9) in for scientific research process, foil gauge is for monitoring steel arch-shelf ess-strain situation, and Practical Project does not use foil gauge.
8. the construction installation method of the tunnel lining structure in claim 1-7 described in arbitrary claim 1 or 2, is characterized in that: it comprises the steps:
1) road excavation adopts full section method, and tunnel excavation completes, and first on country rock wall, just sprays concrete, then inserted to play anchor pole, installation steel mesh reinforcement, and reinforcing bar grid all covers by jetting cement;
2) body is filled with lining cutting tire from transfer port, in gas transmission process by tire dolly in tunnel, make to be close to country rock outside tire, subsequently pressure dynamometer installed;
3) steel arch-shelf is installed, monitoring steel arch-shelf ess-strain situation; Steel arch-shelf lower end adopts shallow embedding, and arranges bolt connection; Adopt between steel arch-shelf and lining cutting tire "
u" type expansion bolt fixes, holdout device stability;
4) alarm device is arranged between country rock and steel arch-shelf, lining cutting tire side;
5) monitor gas pressure intensity in lining cutting tire and be greater than 3Mpa, tire discharges gas immediately automatically, until when pressure is stabilized in 3Mpa, Artificial Release venting body is to pressure to 0.5Mpa, pressure changed and maintains about 10% in 1 month, then can assert that surrouding rock deformation has reached stable, be now dismountable steel arch-shelf, remove steel arch-shelf step: a pulls down strain gauge device and warning device on steel arch-shelf; B removes steel arch arching, takes mode from top to bottom to remove whole steel arch-shelf; The foil gauge that c removes and steel arch-shelf are put in order, can continue to be used in next Pin steel arch-shelf, and the material recovery reprocessing of destruction uses; Or in monitoring lining cutting tire, gas pressure intensity is greater than 3Mpa, and tire discharges gas immediately automatically, and in deflation course, country rock and steel arch-shelf spacing reduce gradually, and when distance reaches 20mm, warning device is reported to the police, then now can remove lining cutting tire, removes step; A removes pressure dynamometer and the warning device of lining cutting tire; B discharges gas, and extracts tire out; C removes pressure dynamometer and tire, can continue to be used in next Pin steel arch-shelf.
9. method according to claim 8, is characterized in that: just the thickness of spray concrete is 28-32mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510101207.2A CN104727829B (en) | 2015-03-09 | 2015-03-09 | A kind of tunnel lining structure with detachable lining cutting tire and its construction installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510101207.2A CN104727829B (en) | 2015-03-09 | 2015-03-09 | A kind of tunnel lining structure with detachable lining cutting tire and its construction installation method |
Publications (2)
| Publication Number | Publication Date |
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| CN104727829A true CN104727829A (en) | 2015-06-24 |
| CN104727829B CN104727829B (en) | 2017-03-08 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368720A (en) * | 2016-10-10 | 2017-02-01 | 三峡大学 | Mold type lining and foam concrete combined supporting structure and construction method |
| CN106437757A (en) * | 2016-10-10 | 2017-02-22 | 三峡大学 | Tire type lining structure between tunnel and shield lining segment and method |
| CN106555598A (en) * | 2016-11-15 | 2017-04-05 | 成都天佑智隧科技有限公司 | A kind of just two lining leave a blank separate structure and its external mold applies method with cushion |
| CN107462354A (en) * | 2017-07-17 | 2017-12-12 | 山东中宏路桥建设有限公司 | Pressure from surrounding rock monitoring device |
| CN108344640A (en) * | 2018-02-12 | 2018-07-31 | 三峡大学 | A kind of device and method of simulation loop tunnel tire formula liner supporting structure stress |
| CN108708747A (en) * | 2018-05-23 | 2018-10-26 | *** | A kind of active stress eliminating device for loose sand sand cobble geology constructing tunnel |
| CN109578012A (en) * | 2018-12-13 | 2019-04-05 | 天地科技股份有限公司 | A kind of roadway support structure and method |
| CN109653765A (en) * | 2019-02-12 | 2019-04-19 | 三峡大学 | The warehouse separated type lining cutting pressure relief support structure and method of one kind of multiple fillers |
| CN111608709A (en) * | 2020-06-04 | 2020-09-01 | 中铁隆昌铁路器材有限公司 | Yielding anchor rod suitable for soft rock large-deformation underground space and supporting method |
| CN112081624A (en) * | 2020-09-15 | 2020-12-15 | 中南大学 | Mining environment reconstruction method based on waste tire recycling |
| CN113982627A (en) * | 2021-10-29 | 2022-01-28 | 成都未来智隧科技有限公司 | Tunnel supporting method and tunnel supporting structure |
| CN114135322A (en) * | 2021-11-22 | 2022-03-04 | 中铁十六局集团第三工程有限公司 | Reinforcing method for preventing steel frame from being twisted in large-deformation tunnel |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437757A (en) * | 2016-10-10 | 2017-02-22 | 三峡大学 | Tire type lining structure between tunnel and shield lining segment and method |
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| CN106368720A (en) * | 2016-10-10 | 2017-02-01 | 三峡大学 | Mold type lining and foam concrete combined supporting structure and construction method |
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